LCOV - code coverage report
Current view: top level - fftools - ffmpeg_opt.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1116 1986 56.2 %
Date: 2017-12-14 19:11:59 Functions: 44 72 61.1 %

          Line data    Source code
       1             : /*
       2             :  * ffmpeg option parsing
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include <stdint.h>
      22             : 
      23             : #include "ffmpeg.h"
      24             : #include "cmdutils.h"
      25             : 
      26             : #include "libavformat/avformat.h"
      27             : 
      28             : #include "libavcodec/avcodec.h"
      29             : 
      30             : #include "libavfilter/avfilter.h"
      31             : 
      32             : #include "libavutil/avassert.h"
      33             : #include "libavutil/avstring.h"
      34             : #include "libavutil/avutil.h"
      35             : #include "libavutil/channel_layout.h"
      36             : #include "libavutil/intreadwrite.h"
      37             : #include "libavutil/fifo.h"
      38             : #include "libavutil/mathematics.h"
      39             : #include "libavutil/opt.h"
      40             : #include "libavutil/parseutils.h"
      41             : #include "libavutil/pixdesc.h"
      42             : #include "libavutil/pixfmt.h"
      43             : 
      44             : #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
      45             : 
      46             : #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
      47             : {\
      48             :     int i, ret;\
      49             :     for (i = 0; i < o->nb_ ## name; i++) {\
      50             :         char *spec = o->name[i].specifier;\
      51             :         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
      52             :             outvar = o->name[i].u.type;\
      53             :         else if (ret < 0)\
      54             :             exit_program(1);\
      55             :     }\
      56             : }
      57             : 
      58             : #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
      59             : {\
      60             :     int i;\
      61             :     for (i = 0; i < o->nb_ ## name; i++) {\
      62             :         char *spec = o->name[i].specifier;\
      63             :         if (!strcmp(spec, mediatype))\
      64             :             outvar = o->name[i].u.type;\
      65             :     }\
      66             : }
      67             : 
      68             : const HWAccel hwaccels[] = {
      69             : #if CONFIG_VIDEOTOOLBOX
      70             :     { "videotoolbox", videotoolbox_init, HWACCEL_VIDEOTOOLBOX, AV_PIX_FMT_VIDEOTOOLBOX },
      71             : #endif
      72             : #if CONFIG_LIBMFX
      73             :     { "qsv",   qsv_init,   HWACCEL_QSV,   AV_PIX_FMT_QSV },
      74             : #endif
      75             : #if CONFIG_CUVID
      76             :     { "cuvid", cuvid_init, HWACCEL_CUVID, AV_PIX_FMT_CUDA },
      77             : #endif
      78             :     { 0 },
      79             : };
      80             : AVBufferRef *hw_device_ctx;
      81             : HWDevice *filter_hw_device;
      82             : 
      83             : char *vstats_filename;
      84             : char *sdp_filename;
      85             : 
      86             : float audio_drift_threshold = 0.1;
      87             : float dts_delta_threshold   = 10;
      88             : float dts_error_threshold   = 3600*30;
      89             : 
      90             : int audio_volume      = 256;
      91             : int audio_sync_method = 0;
      92             : int video_sync_method = VSYNC_AUTO;
      93             : float frame_drop_threshold = 0;
      94             : int do_deinterlace    = 0;
      95             : int do_benchmark      = 0;
      96             : int do_benchmark_all  = 0;
      97             : int do_hex_dump       = 0;
      98             : int do_pkt_dump       = 0;
      99             : int copy_ts           = 0;
     100             : int start_at_zero     = 0;
     101             : int copy_tb           = -1;
     102             : int debug_ts          = 0;
     103             : int exit_on_error     = 0;
     104             : int abort_on_flags    = 0;
     105             : int print_stats       = -1;
     106             : int qp_hist           = 0;
     107             : int stdin_interaction = 1;
     108             : int frame_bits_per_raw_sample = 0;
     109             : float max_error_rate  = 2.0/3;
     110             : int filter_nbthreads = 0;
     111             : int filter_complex_nbthreads = 0;
     112             : int vstats_version = 2;
     113             : 
     114             : 
     115             : static int intra_only         = 0;
     116             : static int file_overwrite     = 0;
     117             : static int no_file_overwrite  = 0;
     118             : static int do_psnr            = 0;
     119             : static int input_sync;
     120             : static int override_ffserver  = 0;
     121             : static int input_stream_potentially_available = 0;
     122             : static int ignore_unknown_streams = 0;
     123             : static int copy_unknown_streams = 0;
     124             : static int find_stream_info = 1;
     125             : 
     126       10870 : static void uninit_options(OptionsContext *o)
     127             : {
     128       10870 :     const OptionDef *po = options;
     129             :     int i;
     130             : 
     131             :     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
     132     1945730 :     while (po->name) {
     133     1923990 :         void *dst = (uint8_t*)o + po->u.off;
     134             : 
     135     1923990 :         if (po->flags & OPT_SPEC) {
     136      500020 :             SpecifierOpt **so = dst;
     137      500020 :             int i, *count = (int*)(so + 1);
     138      521187 :             for (i = 0; i < *count; i++) {
     139       21167 :                 av_freep(&(*so)[i].specifier);
     140       21167 :                 if (po->flags & OPT_STRING)
     141       17202 :                     av_freep(&(*so)[i].u.str);
     142             :             }
     143      500020 :             av_freep(so);
     144      500020 :             *count = 0;
     145     1423970 :         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
     146       10870 :             av_freep(dst);
     147     1923990 :         po++;
     148             :     }
     149             : 
     150       10926 :     for (i = 0; i < o->nb_stream_maps; i++)
     151          56 :         av_freep(&o->stream_maps[i].linklabel);
     152       10870 :     av_freep(&o->stream_maps);
     153       10870 :     av_freep(&o->audio_channel_maps);
     154       10870 :     av_freep(&o->streamid_map);
     155       10870 :     av_freep(&o->attachments);
     156       10870 : }
     157             : 
     158       10870 : static void init_options(OptionsContext *o)
     159             : {
     160       10870 :     memset(o, 0, sizeof(*o));
     161             : 
     162       10870 :     o->stop_time = INT64_MAX;
     163       10870 :     o->mux_max_delay  = 0.7;
     164       10870 :     o->start_time     = AV_NOPTS_VALUE;
     165       10870 :     o->start_time_eof = AV_NOPTS_VALUE;
     166       10870 :     o->recording_time = INT64_MAX;
     167       10870 :     o->limit_filesize = UINT64_MAX;
     168       10870 :     o->chapters_input_file = INT_MAX;
     169       10870 :     o->accurate_seek  = 1;
     170       10870 : }
     171             : 
     172           0 : static int show_hwaccels(void *optctx, const char *opt, const char *arg)
     173             : {
     174           0 :     enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
     175             :     int i;
     176             : 
     177           0 :     printf("Hardware acceleration methods:\n");
     178           0 :     while ((type = av_hwdevice_iterate_types(type)) !=
     179             :            AV_HWDEVICE_TYPE_NONE)
     180           0 :         printf("%s\n", av_hwdevice_get_type_name(type));
     181           0 :     for (i = 0; hwaccels[i].name; i++)
     182           0 :         printf("%s\n", hwaccels[i].name);
     183           0 :     printf("\n");
     184           0 :     return 0;
     185             : }
     186             : 
     187             : /* return a copy of the input with the stream specifiers removed from the keys */
     188       10870 : static AVDictionary *strip_specifiers(AVDictionary *dict)
     189             : {
     190       10870 :     AVDictionaryEntry *e = NULL;
     191       10870 :     AVDictionary    *ret = NULL;
     192             : 
     193       51321 :     while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
     194       29581 :         char *p = strchr(e->key, ':');
     195             : 
     196       29581 :         if (p)
     197         198 :             *p = 0;
     198       29581 :         av_dict_set(&ret, e->key, e->value, 0);
     199       29581 :         if (p)
     200         198 :             *p = ':';
     201             :     }
     202       10870 :     return ret;
     203             : }
     204             : 
     205           0 : static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     206             : {
     207             :     static const AVOption opts[] = {
     208             :         { "abort_on"        , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
     209             :         { "empty_output"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT     },    .unit = "flags" },
     210             :         { NULL },
     211             :     };
     212             :     static const AVClass class = {
     213             :         .class_name = "",
     214             :         .item_name  = av_default_item_name,
     215             :         .option     = opts,
     216             :         .version    = LIBAVUTIL_VERSION_INT,
     217             :     };
     218           0 :     const AVClass *pclass = &class;
     219             : 
     220           0 :     return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
     221             : }
     222             : 
     223           0 : static int opt_sameq(void *optctx, const char *opt, const char *arg)
     224             : {
     225           0 :     av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
     226             :            "If you are looking for an option to preserve the quality (which is not "
     227             :            "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
     228             :            opt, opt);
     229           0 :     return AVERROR(EINVAL);
     230             : }
     231             : 
     232           0 : static int opt_video_channel(void *optctx, const char *opt, const char *arg)
     233             : {
     234           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
     235           0 :     return opt_default(optctx, "channel", arg);
     236             : }
     237             : 
     238           0 : static int opt_video_standard(void *optctx, const char *opt, const char *arg)
     239             : {
     240           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
     241           0 :     return opt_default(optctx, "standard", arg);
     242             : }
     243             : 
     244          24 : static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
     245             : {
     246          24 :     OptionsContext *o = optctx;
     247          24 :     return parse_option(o, "codec:a", arg, options);
     248             : }
     249             : 
     250        3634 : static int opt_video_codec(void *optctx, const char *opt, const char *arg)
     251             : {
     252        3634 :     OptionsContext *o = optctx;
     253        3634 :     return parse_option(o, "codec:v", arg, options);
     254             : }
     255             : 
     256           2 : static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
     257             : {
     258           2 :     OptionsContext *o = optctx;
     259           2 :     return parse_option(o, "codec:s", arg, options);
     260             : }
     261             : 
     262           0 : static int opt_data_codec(void *optctx, const char *opt, const char *arg)
     263             : {
     264           0 :     OptionsContext *o = optctx;
     265           0 :     return parse_option(o, "codec:d", arg, options);
     266             : }
     267             : 
     268          48 : static int opt_map(void *optctx, const char *opt, const char *arg)
     269             : {
     270          48 :     OptionsContext *o = optctx;
     271          48 :     StreamMap *m = NULL;
     272          48 :     int i, negative = 0, file_idx;
     273          48 :     int sync_file_idx = -1, sync_stream_idx = 0;
     274             :     char *p, *sync;
     275             :     char *map;
     276             :     char *allow_unused;
     277             : 
     278          48 :     if (*arg == '-') {
     279           0 :         negative = 1;
     280           0 :         arg++;
     281             :     }
     282          48 :     map = av_strdup(arg);
     283          48 :     if (!map)
     284           0 :         return AVERROR(ENOMEM);
     285             : 
     286             :     /* parse sync stream first, just pick first matching stream */
     287          48 :     if (sync = strchr(map, ',')) {
     288           0 :         *sync = 0;
     289           0 :         sync_file_idx = strtol(sync + 1, &sync, 0);
     290           0 :         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
     291           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
     292           0 :             exit_program(1);
     293             :         }
     294           0 :         if (*sync)
     295           0 :             sync++;
     296           0 :         for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
     297           0 :             if (check_stream_specifier(input_files[sync_file_idx]->ctx,
     298           0 :                                        input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
     299           0 :                 sync_stream_idx = i;
     300           0 :                 break;
     301             :             }
     302           0 :         if (i == input_files[sync_file_idx]->nb_streams) {
     303           0 :             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
     304             :                                        "match any streams.\n", arg);
     305           0 :             exit_program(1);
     306             :         }
     307             :     }
     308             : 
     309             : 
     310          48 :     if (map[0] == '[') {
     311             :         /* this mapping refers to lavfi output */
     312           3 :         const char *c = map + 1;
     313           3 :         GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     314           3 :         m = &o->stream_maps[o->nb_stream_maps - 1];
     315           3 :         m->linklabel = av_get_token(&c, "]");
     316           3 :         if (!m->linklabel) {
     317           0 :             av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
     318           0 :             exit_program(1);
     319             :         }
     320             :     } else {
     321          45 :         if (allow_unused = strchr(map, '?'))
     322           0 :             *allow_unused = 0;
     323          45 :         file_idx = strtol(map, &p, 0);
     324          45 :         if (file_idx >= nb_input_files || file_idx < 0) {
     325           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
     326           0 :             exit_program(1);
     327             :         }
     328          45 :         if (negative)
     329             :             /* disable some already defined maps */
     330           0 :             for (i = 0; i < o->nb_stream_maps; i++) {
     331           0 :                 m = &o->stream_maps[i];
     332           0 :                 if (file_idx == m->file_index &&
     333           0 :                     check_stream_specifier(input_files[m->file_index]->ctx,
     334           0 :                                            input_files[m->file_index]->ctx->streams[m->stream_index],
     335           0 :                                            *p == ':' ? p + 1 : p) > 0)
     336           0 :                     m->disabled = 1;
     337             :             }
     338             :         else
     339         132 :             for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
     340         136 :                 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
     341         136 :                             *p == ':' ? p + 1 : p) <= 0)
     342          34 :                     continue;
     343          53 :                 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     344          53 :                 m = &o->stream_maps[o->nb_stream_maps - 1];
     345             : 
     346          53 :                 m->file_index   = file_idx;
     347          53 :                 m->stream_index = i;
     348             : 
     349          53 :                 if (sync_file_idx >= 0) {
     350           0 :                     m->sync_file_index   = sync_file_idx;
     351           0 :                     m->sync_stream_index = sync_stream_idx;
     352             :                 } else {
     353          53 :                     m->sync_file_index   = file_idx;
     354          53 :                     m->sync_stream_index = i;
     355             :                 }
     356             :             }
     357             :     }
     358             : 
     359          48 :     if (!m) {
     360           0 :         if (allow_unused) {
     361           0 :             av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
     362             :         } else {
     363           0 :             av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
     364             :                                        "To ignore this, add a trailing '?' to the map.\n", arg);
     365           0 :             exit_program(1);
     366             :         }
     367             :     }
     368             : 
     369          48 :     av_freep(&map);
     370          48 :     return 0;
     371             : }
     372             : 
     373           1 : static int opt_attach(void *optctx, const char *opt, const char *arg)
     374             : {
     375           1 :     OptionsContext *o = optctx;
     376           1 :     GROW_ARRAY(o->attachments, o->nb_attachments);
     377           1 :     o->attachments[o->nb_attachments - 1] = arg;
     378           1 :     return 0;
     379             : }
     380             : 
     381          10 : static int opt_map_channel(void *optctx, const char *opt, const char *arg)
     382             : {
     383          10 :     OptionsContext *o = optctx;
     384             :     int n;
     385             :     AVStream *st;
     386             :     AudioChannelMap *m;
     387             :     char *allow_unused;
     388             :     char *mapchan;
     389          10 :     mapchan = av_strdup(arg);
     390          10 :     if (!mapchan)
     391           0 :         return AVERROR(ENOMEM);
     392             : 
     393          10 :     GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
     394          10 :     m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
     395             : 
     396             :     /* muted channel syntax */
     397          10 :     n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
     398          10 :     if ((n == 1 || n == 3) && m->channel_idx == -1) {
     399           1 :         m->file_idx = m->stream_idx = -1;
     400           1 :         if (n == 1)
     401           1 :             m->ofile_idx = m->ostream_idx = -1;
     402           1 :         av_free(mapchan);
     403           1 :         return 0;
     404             :     }
     405             : 
     406             :     /* normal syntax */
     407           9 :     n = sscanf(arg, "%d.%d.%d:%d.%d",
     408             :                &m->file_idx,  &m->stream_idx, &m->channel_idx,
     409             :                &m->ofile_idx, &m->ostream_idx);
     410             : 
     411           9 :     if (n != 3 && n != 5) {
     412           0 :         av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
     413             :                "[file.stream.channel|-1][:syncfile:syncstream]\n");
     414           0 :         exit_program(1);
     415             :     }
     416             : 
     417           9 :     if (n != 5) // only file.stream.channel specified
     418           9 :         m->ofile_idx = m->ostream_idx = -1;
     419             : 
     420             :     /* check input */
     421           9 :     if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
     422           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
     423             :                m->file_idx);
     424           0 :         exit_program(1);
     425             :     }
     426          18 :     if (m->stream_idx < 0 ||
     427           9 :         m->stream_idx >= input_files[m->file_idx]->nb_streams) {
     428           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
     429             :                m->file_idx, m->stream_idx);
     430           0 :         exit_program(1);
     431             :     }
     432           9 :     st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
     433           9 :     if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
     434           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
     435             :                m->file_idx, m->stream_idx);
     436           0 :         exit_program(1);
     437             :     }
     438             :     /* allow trailing ? to map_channel */
     439           9 :     if (allow_unused = strchr(mapchan, '?'))
     440           2 :         *allow_unused = 0;
     441           9 :     if (m->channel_idx < 0 || m->channel_idx >= st->codecpar->channels) {
     442           1 :         if (allow_unused) {
     443           1 :             av_log(NULL, AV_LOG_VERBOSE, "mapchan: invalid audio channel #%d.%d.%d\n",
     444             :                     m->file_idx, m->stream_idx, m->channel_idx);
     445             :         } else {
     446           0 :             av_log(NULL, AV_LOG_FATAL,  "mapchan: invalid audio channel #%d.%d.%d\n"
     447             :                     "To ignore this, add a trailing '?' to the map_channel.\n",
     448             :                     m->file_idx, m->stream_idx, m->channel_idx);
     449           0 :             exit_program(1);
     450             :         }
     451             : 
     452             :     }
     453           9 :     av_free(mapchan);
     454           9 :     return 0;
     455             : }
     456             : 
     457           0 : static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
     458             : {
     459           0 :     av_free(sdp_filename);
     460           0 :     sdp_filename = av_strdup(arg);
     461           0 :     return 0;
     462             : }
     463             : 
     464             : #if CONFIG_VAAPI
     465             : static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
     466             : {
     467             :     HWDevice *dev;
     468             :     const char *prefix = "vaapi:";
     469             :     char *tmp;
     470             :     int err;
     471             :     tmp = av_asprintf("%s%s", prefix, arg);
     472             :     if (!tmp)
     473             :         return AVERROR(ENOMEM);
     474             :     err = hw_device_init_from_string(tmp, &dev);
     475             :     av_free(tmp);
     476             :     if (err < 0)
     477             :         return err;
     478             :     hw_device_ctx = av_buffer_ref(dev->device_ref);
     479             :     if (!hw_device_ctx)
     480             :         return AVERROR(ENOMEM);
     481             :     return 0;
     482             : }
     483             : #endif
     484             : 
     485           0 : static int opt_init_hw_device(void *optctx, const char *opt, const char *arg)
     486             : {
     487           0 :     if (!strcmp(arg, "list")) {
     488           0 :         enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
     489           0 :         printf("Supported hardware device types:\n");
     490           0 :         while ((type = av_hwdevice_iterate_types(type)) !=
     491             :                AV_HWDEVICE_TYPE_NONE)
     492           0 :             printf("%s\n", av_hwdevice_get_type_name(type));
     493           0 :         printf("\n");
     494           0 :         exit_program(0);
     495             :     } else {
     496           0 :         return hw_device_init_from_string(arg, NULL);
     497             :     }
     498             : }
     499             : 
     500           0 : static int opt_filter_hw_device(void *optctx, const char *opt, const char *arg)
     501             : {
     502           0 :     if (filter_hw_device) {
     503           0 :         av_log(NULL, AV_LOG_ERROR, "Only one filter device can be used.\n");
     504           0 :         return AVERROR(EINVAL);
     505             :     }
     506           0 :     filter_hw_device = hw_device_get_by_name(arg);
     507           0 :     if (!filter_hw_device) {
     508           0 :         av_log(NULL, AV_LOG_ERROR, "Invalid filter device %s.\n", arg);
     509           0 :         return AVERROR(EINVAL);
     510             :     }
     511           0 :     return 0;
     512             : }
     513             : 
     514             : /**
     515             :  * Parse a metadata specifier passed as 'arg' parameter.
     516             :  * @param arg  metadata string to parse
     517             :  * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
     518             :  * @param index for type c/p, chapter/program index is written here
     519             :  * @param stream_spec for type s, the stream specifier is written here
     520             :  */
     521         180 : static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
     522             : {
     523         180 :     if (*arg) {
     524          23 :         *type = *arg;
     525          23 :         switch (*arg) {
     526          17 :         case 'g':
     527          17 :             break;
     528           6 :         case 's':
     529           6 :             if (*(++arg) && *arg != ':') {
     530           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
     531           0 :                 exit_program(1);
     532             :             }
     533           6 :             *stream_spec = *arg == ':' ? arg + 1 : "";
     534           6 :             break;
     535           0 :         case 'c':
     536             :         case 'p':
     537           0 :             if (*(++arg) == ':')
     538           0 :                 *index = strtol(++arg, NULL, 0);
     539           0 :             break;
     540           0 :         default:
     541           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
     542           0 :             exit_program(1);
     543             :         }
     544             :     } else
     545         157 :         *type = 'g';
     546         180 : }
     547             : 
     548           5 : static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
     549             : {
     550           5 :     AVDictionary **meta_in = NULL;
     551           5 :     AVDictionary **meta_out = NULL;
     552           5 :     int i, ret = 0;
     553             :     char type_in, type_out;
     554           5 :     const char *istream_spec = NULL, *ostream_spec = NULL;
     555           5 :     int idx_in = 0, idx_out = 0;
     556             : 
     557           5 :     parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
     558           5 :     parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
     559             : 
     560           5 :     if (!ic) {
     561           2 :         if (type_out == 'g' || !*outspec)
     562           2 :             o->metadata_global_manual = 1;
     563           2 :         if (type_out == 's' || !*outspec)
     564           0 :             o->metadata_streams_manual = 1;
     565           2 :         if (type_out == 'c' || !*outspec)
     566           0 :             o->metadata_chapters_manual = 1;
     567           2 :         return 0;
     568             :     }
     569             : 
     570           3 :     if (type_in == 'g' || type_out == 'g')
     571           1 :         o->metadata_global_manual = 1;
     572           3 :     if (type_in == 's' || type_out == 's')
     573           2 :         o->metadata_streams_manual = 1;
     574           3 :     if (type_in == 'c' || type_out == 'c')
     575           0 :         o->metadata_chapters_manual = 1;
     576             : 
     577             :     /* ic is NULL when just disabling automatic mappings */
     578           3 :     if (!ic)
     579           0 :         return 0;
     580             : 
     581             : #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
     582             :     if ((index) < 0 || (index) >= (nb_elems)) {\
     583             :         av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
     584             :                 (desc), (index));\
     585             :         exit_program(1);\
     586             :     }
     587             : 
     588             : #define SET_DICT(type, meta, context, index)\
     589             :         switch (type) {\
     590             :         case 'g':\
     591             :             meta = &context->metadata;\
     592             :             break;\
     593             :         case 'c':\
     594             :             METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
     595             :             meta = &context->chapters[index]->metadata;\
     596             :             break;\
     597             :         case 'p':\
     598             :             METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
     599             :             meta = &context->programs[index]->metadata;\
     600             :             break;\
     601             :         case 's':\
     602             :             break; /* handled separately below */ \
     603             :         default: av_assert0(0);\
     604             :         }\
     605             : 
     606           3 :     SET_DICT(type_in, meta_in, ic, idx_in);
     607           3 :     SET_DICT(type_out, meta_out, oc, idx_out);
     608             : 
     609             :     /* for input streams choose first matching stream */
     610           3 :     if (type_in == 's') {
     611           3 :         for (i = 0; i < ic->nb_streams; i++) {
     612           3 :             if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
     613           2 :                 meta_in = &ic->streams[i]->metadata;
     614           2 :                 break;
     615           1 :             } else if (ret < 0)
     616           0 :                 exit_program(1);
     617             :         }
     618           2 :         if (!meta_in) {
     619           0 :             av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
     620           0 :             exit_program(1);
     621             :         }
     622             :     }
     623             : 
     624           3 :     if (type_out == 's') {
     625           8 :         for (i = 0; i < oc->nb_streams; i++) {
     626           6 :             if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
     627           2 :                 meta_out = &oc->streams[i]->metadata;
     628           2 :                 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     629           4 :             } else if (ret < 0)
     630           0 :                 exit_program(1);
     631             :         }
     632             :     } else
     633           1 :         av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     634             : 
     635           3 :     return 0;
     636             : }
     637             : 
     638           0 : static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
     639             : {
     640           0 :     OptionsContext *o = optctx;
     641             :     char buf[128];
     642           0 :     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
     643           0 :     struct tm time = *gmtime((time_t*)&recording_timestamp);
     644           0 :     if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
     645           0 :         return -1;
     646           0 :     parse_option(o, "metadata", buf, options);
     647             : 
     648           0 :     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
     649             :                                  "tag instead.\n", opt);
     650           0 :     return 0;
     651             : }
     652             : 
     653        8858 : static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
     654             : {
     655             :     const AVCodecDescriptor *desc;
     656        8858 :     const char *codec_string = encoder ? "encoder" : "decoder";
     657             :     AVCodec *codec;
     658             : 
     659        8858 :     codec = encoder ?
     660        8858 :         avcodec_find_encoder_by_name(name) :
     661             :         avcodec_find_decoder_by_name(name);
     662             : 
     663        8858 :     if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
     664           1 :         codec = encoder ? avcodec_find_encoder(desc->id) :
     665           0 :                           avcodec_find_decoder(desc->id);
     666           1 :         if (codec)
     667           1 :             av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
     668             :                    codec_string, codec->name, desc->name);
     669             :     }
     670             : 
     671        8858 :     if (!codec) {
     672           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
     673           0 :         exit_program(1);
     674             :     }
     675        8858 :     if (codec->type != type) {
     676           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
     677           0 :         exit_program(1);
     678             :     }
     679        8858 :     return codec;
     680             : }
     681             : 
     682       11444 : static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
     683             : {
     684       11444 :     char *codec_name = NULL;
     685             : 
     686       11444 :     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
     687       11444 :     if (codec_name) {
     688        4052 :         AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
     689        4052 :         st->codecpar->codec_id = codec->id;
     690        4052 :         return codec;
     691             :     } else
     692        7392 :         return avcodec_find_decoder(st->codecpar->codec_id);
     693             : }
     694             : 
     695             : /* Add all the streams from the given input file to the global
     696             :  * list of input streams. */
     697        5458 : static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
     698             : {
     699             :     int i, ret;
     700             : 
     701       11225 :     for (i = 0; i < ic->nb_streams; i++) {
     702        5767 :         AVStream *st = ic->streams[i];
     703        5767 :         AVCodecParameters *par = st->codecpar;
     704        5767 :         InputStream *ist = av_mallocz(sizeof(*ist));
     705        5767 :         char *framerate = NULL, *hwaccel_device = NULL;
     706        5767 :         const char *hwaccel = NULL;
     707        5767 :         char *hwaccel_output_format = NULL;
     708        5767 :         char *codec_tag = NULL;
     709             :         char *next;
     710        5767 :         char *discard_str = NULL;
     711        5767 :         const AVClass *cc = avcodec_get_class();
     712        5767 :         const AVOption *discard_opt = av_opt_find(&cc, "skip_frame", NULL, 0, 0);
     713             : 
     714        5767 :         if (!ist)
     715           0 :             exit_program(1);
     716             : 
     717        5767 :         GROW_ARRAY(input_streams, nb_input_streams);
     718        5767 :         input_streams[nb_input_streams - 1] = ist;
     719             : 
     720        5767 :         ist->st = st;
     721        5767 :         ist->file_index = nb_input_files;
     722        5767 :         ist->discard = 1;
     723        5767 :         st->discard  = AVDISCARD_ALL;
     724        5767 :         ist->nb_samples = 0;
     725        5767 :         ist->min_pts = INT64_MAX;
     726        5767 :         ist->max_pts = INT64_MIN;
     727             : 
     728        5767 :         ist->ts_scale = 1.0;
     729        5767 :         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
     730             : 
     731        5767 :         ist->autorotate = 1;
     732        5767 :         MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
     733             : 
     734        5767 :         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
     735        5767 :         if (codec_tag) {
     736           2 :             uint32_t tag = strtol(codec_tag, &next, 0);
     737           2 :             if (*next)
     738           2 :                 tag = AV_RL32(codec_tag);
     739           2 :             st->codecpar->codec_tag = tag;
     740             :         }
     741             : 
     742        5767 :         ist->dec = choose_decoder(o, ic, st);
     743        5767 :         ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id, ic, st, ist->dec);
     744             : 
     745        5767 :         ist->reinit_filters = -1;
     746        5767 :         MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
     747             : 
     748        5767 :         MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
     749        5767 :         ist->user_set_discard = AVDISCARD_NONE;
     750        5767 :         if (discard_str && av_opt_eval_int(&cc, discard_opt, discard_str, &ist->user_set_discard) < 0) {
     751           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
     752             :                     discard_str);
     753           0 :             exit_program(1);
     754             :         }
     755             : 
     756        5767 :         ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
     757             : 
     758        5767 :         ist->dec_ctx = avcodec_alloc_context3(ist->dec);
     759        5767 :         if (!ist->dec_ctx) {
     760           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
     761           0 :             exit_program(1);
     762             :         }
     763             : 
     764        5767 :         ret = avcodec_parameters_to_context(ist->dec_ctx, par);
     765        5767 :         if (ret < 0) {
     766           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     767           0 :             exit_program(1);
     768             :         }
     769             : 
     770        5767 :         if (o->bitexact)
     771          85 :             ist->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
     772             : 
     773        5767 :         switch (par->codec_type) {
     774        4387 :         case AVMEDIA_TYPE_VIDEO:
     775        4387 :             if(!ist->dec)
     776           0 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     777             : #if FF_API_LOWRES
     778        4387 :             if (st->codec->lowres) {
     779           1 :                 ist->dec_ctx->lowres = st->codec->lowres;
     780           1 :                 ist->dec_ctx->width  = st->codec->width;
     781           1 :                 ist->dec_ctx->height = st->codec->height;
     782           1 :                 ist->dec_ctx->coded_width  = st->codec->coded_width;
     783           1 :                 ist->dec_ctx->coded_height = st->codec->coded_height;
     784             :             }
     785             : #endif
     786             : 
     787             :             // avformat_find_stream_info() doesn't set this for us anymore.
     788        4387 :             ist->dec_ctx->framerate = st->avg_frame_rate;
     789             : 
     790        4387 :             MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
     791        4387 :             if (framerate && av_parse_video_rate(&ist->framerate,
     792             :                                                  framerate) < 0) {
     793           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
     794             :                        framerate);
     795           0 :                 exit_program(1);
     796             :             }
     797             : 
     798        4387 :             ist->top_field_first = -1;
     799        4387 :             MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
     800             : 
     801        4387 :             MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
     802        4387 :             if (hwaccel) {
     803             :                 // The NVDEC hwaccels use a CUDA device, so remap the name here.
     804        4151 :                 if (!strcmp(hwaccel, "nvdec"))
     805           0 :                     hwaccel = "cuda";
     806             : 
     807        4151 :                 if (!strcmp(hwaccel, "none"))
     808        4151 :                     ist->hwaccel_id = HWACCEL_NONE;
     809           0 :                 else if (!strcmp(hwaccel, "auto"))
     810           0 :                     ist->hwaccel_id = HWACCEL_AUTO;
     811             :                 else {
     812             :                     enum AVHWDeviceType type;
     813             :                     int i;
     814           0 :                     for (i = 0; hwaccels[i].name; i++) {
     815           0 :                         if (!strcmp(hwaccels[i].name, hwaccel)) {
     816           0 :                             ist->hwaccel_id = hwaccels[i].id;
     817           0 :                             break;
     818             :                         }
     819             :                     }
     820             : 
     821           0 :                     if (!ist->hwaccel_id) {
     822           0 :                         type = av_hwdevice_find_type_by_name(hwaccel);
     823           0 :                         if (type != AV_HWDEVICE_TYPE_NONE) {
     824           0 :                             ist->hwaccel_id = HWACCEL_GENERIC;
     825           0 :                             ist->hwaccel_device_type = type;
     826             :                         }
     827             :                     }
     828             : 
     829           0 :                     if (!ist->hwaccel_id) {
     830           0 :                         av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
     831             :                                hwaccel);
     832           0 :                         av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
     833           0 :                         type = AV_HWDEVICE_TYPE_NONE;
     834           0 :                         while ((type = av_hwdevice_iterate_types(type)) !=
     835             :                                AV_HWDEVICE_TYPE_NONE)
     836           0 :                             av_log(NULL, AV_LOG_FATAL, "%s ",
     837             :                                    av_hwdevice_get_type_name(type));
     838           0 :                         for (i = 0; hwaccels[i].name; i++)
     839           0 :                             av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
     840           0 :                         av_log(NULL, AV_LOG_FATAL, "\n");
     841           0 :                         exit_program(1);
     842             :                     }
     843             :                 }
     844             :             }
     845             : 
     846        4387 :             MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
     847        4387 :             if (hwaccel_device) {
     848           0 :                 ist->hwaccel_device = av_strdup(hwaccel_device);
     849           0 :                 if (!ist->hwaccel_device)
     850           0 :                     exit_program(1);
     851             :             }
     852             : 
     853        4387 :             MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
     854             :                                  hwaccel_output_format, ic, st);
     855        4387 :             if (hwaccel_output_format) {
     856           0 :                 ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
     857           0 :                 if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
     858           0 :                     av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
     859             :                            "format: %s", hwaccel_output_format);
     860             :                 }
     861             :             } else {
     862        4387 :                 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
     863             :             }
     864             : 
     865        4387 :             ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
     866             : 
     867        4387 :             break;
     868        1291 :         case AVMEDIA_TYPE_AUDIO:
     869        1291 :             ist->guess_layout_max = INT_MAX;
     870        1291 :             MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
     871        1291 :             guess_input_channel_layout(ist);
     872        1291 :             break;
     873          88 :         case AVMEDIA_TYPE_DATA:
     874             :         case AVMEDIA_TYPE_SUBTITLE: {
     875          88 :             char *canvas_size = NULL;
     876          88 :             if(!ist->dec)
     877          46 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     878          88 :             MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
     879          88 :             MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
     880          88 :             if (canvas_size &&
     881           0 :                 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
     882           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
     883           0 :                 exit_program(1);
     884             :             }
     885          88 :             break;
     886             :         }
     887           1 :         case AVMEDIA_TYPE_ATTACHMENT:
     888             :         case AVMEDIA_TYPE_UNKNOWN:
     889           1 :             break;
     890           0 :         default:
     891           0 :             abort();
     892             :         }
     893             : 
     894        5767 :         ret = avcodec_parameters_from_context(par, ist->dec_ctx);
     895        5767 :         if (ret < 0) {
     896           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     897           0 :             exit_program(1);
     898             :         }
     899             :     }
     900        5458 : }
     901             : 
     902        5367 : static void assert_file_overwrite(const char *filename)
     903             : {
     904        5367 :     if (file_overwrite && no_file_overwrite) {
     905           0 :         fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
     906           0 :         exit_program(1);
     907             :     }
     908             : 
     909        5367 :     if (!file_overwrite) {
     910        4037 :         const char *proto_name = avio_find_protocol_name(filename);
     911        4037 :         if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
     912           0 :             if (stdin_interaction && !no_file_overwrite) {
     913           0 :                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
     914           0 :                 fflush(stderr);
     915           0 :                 term_exit();
     916           0 :                 signal(SIGINT, SIG_DFL);
     917           0 :                 if (!read_yesno()) {
     918           0 :                     av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
     919           0 :                     exit_program(1);
     920             :                 }
     921           0 :                 term_init();
     922             :             }
     923             :             else {
     924           0 :                 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
     925           0 :                 exit_program(1);
     926             :             }
     927             :         }
     928             :     }
     929        5367 : }
     930             : 
     931           0 : static void dump_attachment(AVStream *st, const char *filename)
     932             : {
     933             :     int ret;
     934           0 :     AVIOContext *out = NULL;
     935             :     AVDictionaryEntry *e;
     936             : 
     937           0 :     if (!st->codecpar->extradata_size) {
     938           0 :         av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
     939             :                nb_input_files - 1, st->index);
     940           0 :         return;
     941             :     }
     942           0 :     if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
     943           0 :         filename = e->value;
     944           0 :     if (!*filename) {
     945           0 :         av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
     946             :                "in stream #%d:%d.\n", nb_input_files - 1, st->index);
     947           0 :         exit_program(1);
     948             :     }
     949             : 
     950           0 :     assert_file_overwrite(filename);
     951             : 
     952           0 :     if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
     953           0 :         av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
     954             :                filename);
     955           0 :         exit_program(1);
     956             :     }
     957             : 
     958           0 :     avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
     959           0 :     avio_flush(out);
     960           0 :     avio_close(out);
     961             : }
     962             : 
     963        5458 : static int open_input_file(OptionsContext *o, const char *filename)
     964             : {
     965             :     InputFile *f;
     966             :     AVFormatContext *ic;
     967        5458 :     AVInputFormat *file_iformat = NULL;
     968             :     int err, i, ret;
     969             :     int64_t timestamp;
     970        5458 :     AVDictionary *unused_opts = NULL;
     971        5458 :     AVDictionaryEntry *e = NULL;
     972        5458 :     char *   video_codec_name = NULL;
     973        5458 :     char *   audio_codec_name = NULL;
     974        5458 :     char *subtitle_codec_name = NULL;
     975        5458 :     char *    data_codec_name = NULL;
     976        5458 :     int scan_all_pmts_set = 0;
     977             : 
     978        5458 :     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
     979           0 :         o->stop_time = INT64_MAX;
     980           0 :         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
     981             :     }
     982             : 
     983        5458 :     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
     984           0 :         int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
     985           0 :         if (o->stop_time <= start_time) {
     986           0 :             av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
     987           0 :             exit_program(1);
     988             :         } else {
     989           0 :             o->recording_time = o->stop_time - start_time;
     990             :         }
     991             :     }
     992             : 
     993        5458 :     if (o->format) {
     994        2501 :         if (!(file_iformat = av_find_input_format(o->format))) {
     995           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
     996           0 :             exit_program(1);
     997             :         }
     998             :     }
     999             : 
    1000        5458 :     if (!strcmp(filename, "-"))
    1001           0 :         filename = "pipe:";
    1002             : 
    1003       10916 :     stdin_interaction &= strncmp(filename, "pipe:", 5) &&
    1004        5458 :                          strcmp(filename, "/dev/stdin");
    1005             : 
    1006             :     /* get default parameters from command line */
    1007        5458 :     ic = avformat_alloc_context();
    1008        5458 :     if (!ic) {
    1009           0 :         print_error(filename, AVERROR(ENOMEM));
    1010           0 :         exit_program(1);
    1011             :     }
    1012        5458 :     if (o->nb_audio_sample_rate) {
    1013          64 :         av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
    1014             :     }
    1015        5458 :     if (o->nb_audio_channels) {
    1016             :         /* because we set audio_channels based on both the "ac" and
    1017             :          * "channel_layout" options, we need to check that the specified
    1018             :          * demuxer actually has the "channels" option before setting it */
    1019          18 :         if (file_iformat && file_iformat->priv_class &&
    1020           9 :             av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
    1021             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
    1022           9 :             av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
    1023             :         }
    1024             :     }
    1025        5458 :     if (o->nb_frame_rates) {
    1026             :         /* set the format-level framerate option;
    1027             :          * this is important for video grabbers, e.g. x11 */
    1028          48 :         if (file_iformat && file_iformat->priv_class &&
    1029          24 :             av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
    1030             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
    1031          24 :             av_dict_set(&o->g->format_opts, "framerate",
    1032          24 :                         o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
    1033             :         }
    1034             :     }
    1035        5458 :     if (o->nb_frame_sizes) {
    1036         466 :         av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
    1037             :     }
    1038        5458 :     if (o->nb_frame_pix_fmts)
    1039         466 :         av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
    1040             : 
    1041        5458 :     MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
    1042        5458 :     MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
    1043        5458 :     MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
    1044        5458 :     MATCH_PER_TYPE_OPT(codec_names, str,     data_codec_name, ic, "d");
    1045             : 
    1046        5458 :     if (video_codec_name)
    1047        1998 :         ic->video_codec    = find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
    1048        5458 :     if (audio_codec_name)
    1049          11 :         ic->audio_codec    = find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
    1050        5458 :     if (subtitle_codec_name)
    1051           0 :         ic->subtitle_codec = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
    1052        5458 :     if (data_codec_name)
    1053           0 :         ic->data_codec     = find_codec_or_die(data_codec_name    , AVMEDIA_TYPE_DATA    , 0);
    1054             : 
    1055        5458 :     ic->video_codec_id     = video_codec_name    ? ic->video_codec->id    : AV_CODEC_ID_NONE;
    1056        5458 :     ic->audio_codec_id     = audio_codec_name    ? ic->audio_codec->id    : AV_CODEC_ID_NONE;
    1057        5458 :     ic->subtitle_codec_id  = subtitle_codec_name ? ic->subtitle_codec->id : AV_CODEC_ID_NONE;
    1058        5458 :     ic->data_codec_id      = data_codec_name     ? ic->data_codec->id     : AV_CODEC_ID_NONE;
    1059             : 
    1060        5458 :     ic->flags |= AVFMT_FLAG_NONBLOCK;
    1061        5458 :     if (o->bitexact)
    1062          76 :         ic->flags |= AVFMT_FLAG_BITEXACT;
    1063        5458 :     ic->interrupt_callback = int_cb;
    1064             : 
    1065        5458 :     if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
    1066        5458 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
    1067        5458 :         scan_all_pmts_set = 1;
    1068             :     }
    1069             :     /* open the input file with generic avformat function */
    1070        5458 :     err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
    1071        5458 :     if (err < 0) {
    1072           0 :         print_error(filename, err);
    1073           0 :         if (err == AVERROR_PROTOCOL_NOT_FOUND)
    1074           0 :             av_log(NULL, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
    1075           0 :         exit_program(1);
    1076             :     }
    1077        5458 :     if (scan_all_pmts_set)
    1078        5458 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
    1079        5458 :     remove_avoptions(&o->g->format_opts, o->g->codec_opts);
    1080        5458 :     assert_avoptions(o->g->format_opts);
    1081             : 
    1082             :     /* apply forced codec ids */
    1083       11135 :     for (i = 0; i < ic->nb_streams; i++)
    1084        5677 :         choose_decoder(o, ic, ic->streams[i]);
    1085             : 
    1086        5458 :     if (find_stream_info) {
    1087        5458 :         AVDictionary **opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
    1088        5458 :         int orig_nb_streams = ic->nb_streams;
    1089             : 
    1090             :         /* If not enough info to get the stream parameters, we decode the
    1091             :            first frames to get it. (used in mpeg case for example) */
    1092        5458 :         ret = avformat_find_stream_info(ic, opts);
    1093             : 
    1094       11135 :         for (i = 0; i < orig_nb_streams; i++)
    1095        5677 :             av_dict_free(&opts[i]);
    1096        5458 :         av_freep(&opts);
    1097             : 
    1098        5458 :         if (ret < 0) {
    1099           0 :             av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
    1100           0 :             if (ic->nb_streams == 0) {
    1101           0 :                 avformat_close_input(&ic);
    1102           0 :                 exit_program(1);
    1103             :             }
    1104             :         }
    1105             :     }
    1106             : 
    1107        5458 :     if (o->start_time_eof != AV_NOPTS_VALUE) {
    1108           0 :         if (ic->duration>0) {
    1109           0 :             o->start_time = o->start_time_eof + ic->duration;
    1110             :         } else
    1111           0 :             av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
    1112             :     }
    1113        5458 :     timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
    1114             :     /* add the stream start time */
    1115        5458 :     if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
    1116        4010 :         timestamp += ic->start_time;
    1117             : 
    1118             :     /* if seeking requested, we execute it */
    1119        5458 :     if (o->start_time != AV_NOPTS_VALUE) {
    1120          11 :         int64_t seek_timestamp = timestamp;
    1121             : 
    1122          11 :         if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
    1123          11 :             int dts_heuristic = 0;
    1124          22 :             for (i=0; i<ic->nb_streams; i++) {
    1125          11 :                 const AVCodecParameters *par = ic->streams[i]->codecpar;
    1126          11 :                 if (par->video_delay)
    1127           0 :                     dts_heuristic = 1;
    1128             :             }
    1129          11 :             if (dts_heuristic) {
    1130           0 :                 seek_timestamp -= 3*AV_TIME_BASE / 23;
    1131             :             }
    1132             :         }
    1133          11 :         ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
    1134          11 :         if (ret < 0) {
    1135           1 :             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
    1136           1 :                    filename, (double)timestamp / AV_TIME_BASE);
    1137             :         }
    1138             :     }
    1139             : 
    1140             :     /* update the current parameters so that they match the one of the input stream */
    1141        5458 :     add_input_streams(o, ic);
    1142             : 
    1143             :     /* dump the file content */
    1144        5458 :     av_dump_format(ic, nb_input_files, filename, 0);
    1145             : 
    1146        5458 :     GROW_ARRAY(input_files, nb_input_files);
    1147        5458 :     f = av_mallocz(sizeof(*f));
    1148        5458 :     if (!f)
    1149           0 :         exit_program(1);
    1150        5458 :     input_files[nb_input_files - 1] = f;
    1151             : 
    1152        5458 :     f->ctx        = ic;
    1153        5458 :     f->ist_index  = nb_input_streams - ic->nb_streams;
    1154        5458 :     f->start_time = o->start_time;
    1155        5458 :     f->recording_time = o->recording_time;
    1156        5458 :     f->input_ts_offset = o->input_ts_offset;
    1157        5458 :     f->ts_offset  = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
    1158        5458 :     f->nb_streams = ic->nb_streams;
    1159        5458 :     f->rate_emu   = o->rate_emu;
    1160        5458 :     f->accurate_seek = o->accurate_seek;
    1161        5458 :     f->loop = o->loop;
    1162        5458 :     f->duration = 0;
    1163        5458 :     f->time_base = (AVRational){ 1, 1 };
    1164             : #if HAVE_PTHREADS
    1165        5458 :     f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
    1166             : #endif
    1167             : 
    1168             :     /* check if all codec options have been used */
    1169        5458 :     unused_opts = strip_specifiers(o->g->codec_opts);
    1170       11225 :     for (i = f->ist_index; i < nb_input_streams; i++) {
    1171        5767 :         e = NULL;
    1172       29015 :         while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
    1173             :                                 AV_DICT_IGNORE_SUFFIX)))
    1174       17481 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    1175             :     }
    1176             : 
    1177        5458 :     e = NULL;
    1178       11166 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    1179         250 :         const AVClass *class = avcodec_get_class();
    1180         250 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    1181             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1182         250 :         const AVClass *fclass = avformat_get_class();
    1183         250 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    1184             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1185         250 :         if (!option || foption)
    1186           0 :             continue;
    1187             : 
    1188             : 
    1189         250 :         if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
    1190           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    1191             :                    "input file #%d (%s) is not a decoding option.\n", e->key,
    1192           0 :                    option->help ? option->help : "", nb_input_files - 1,
    1193             :                    filename);
    1194           0 :             exit_program(1);
    1195             :         }
    1196             : 
    1197         500 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    1198             :                "input file #%d (%s) has not been used for any stream. The most "
    1199             :                "likely reason is either wrong type (e.g. a video option with "
    1200             :                "no video streams) or that it is a private option of some decoder "
    1201             :                "which was not actually used for any stream.\n", e->key,
    1202         250 :                option->help ? option->help : "", nb_input_files - 1, filename);
    1203             :     }
    1204        5458 :     av_dict_free(&unused_opts);
    1205             : 
    1206        5458 :     for (i = 0; i < o->nb_dump_attachment; i++) {
    1207             :         int j;
    1208             : 
    1209           0 :         for (j = 0; j < ic->nb_streams; j++) {
    1210           0 :             AVStream *st = ic->streams[j];
    1211             : 
    1212           0 :             if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
    1213           0 :                 dump_attachment(st, o->dump_attachment[i].u.str);
    1214             :         }
    1215             :     }
    1216             : 
    1217        5458 :     input_stream_potentially_available = 1;
    1218             : 
    1219        5458 :     return 0;
    1220             : }
    1221             : 
    1222           0 : static uint8_t *get_line(AVIOContext *s)
    1223             : {
    1224             :     AVIOContext *line;
    1225             :     uint8_t *buf;
    1226             :     char c;
    1227             : 
    1228           0 :     if (avio_open_dyn_buf(&line) < 0) {
    1229           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
    1230           0 :         exit_program(1);
    1231             :     }
    1232             : 
    1233           0 :     while ((c = avio_r8(s)) && c != '\n')
    1234           0 :         avio_w8(line, c);
    1235           0 :     avio_w8(line, 0);
    1236           0 :     avio_close_dyn_buf(line, &buf);
    1237             : 
    1238           0 :     return buf;
    1239             : }
    1240             : 
    1241           0 : static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
    1242             : {
    1243           0 :     int i, ret = -1;
    1244             :     char filename[1000];
    1245           0 :     const char *base[3] = { getenv("AVCONV_DATADIR"),
    1246           0 :                             getenv("HOME"),
    1247             :                             AVCONV_DATADIR,
    1248             :                             };
    1249             : 
    1250           0 :     for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
    1251           0 :         if (!base[i])
    1252           0 :             continue;
    1253           0 :         if (codec_name) {
    1254           0 :             snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
    1255             :                      i != 1 ? "" : "/.avconv", codec_name, preset_name);
    1256           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1257             :         }
    1258           0 :         if (ret < 0) {
    1259           0 :             snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
    1260             :                      i != 1 ? "" : "/.avconv", preset_name);
    1261           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1262             :         }
    1263             :     }
    1264           0 :     return ret;
    1265             : }
    1266             : 
    1267        5552 : static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
    1268             : {
    1269        5552 :     enum AVMediaType type = ost->st->codecpar->codec_type;
    1270        5552 :     char *codec_name = NULL;
    1271             : 
    1272        5552 :     if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
    1273        5541 :         MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
    1274        5541 :         if (!codec_name) {
    1275        2532 :             ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
    1276        2532 :                                                          NULL, ost->st->codecpar->codec_type);
    1277        2532 :             ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
    1278        2532 :             if (!ost->enc) {
    1279           0 :                 av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
    1280             :                        "output stream #%d:%d. Default encoder for format %s (codec %s) is "
    1281             :                        "probably disabled. Please choose an encoder manually.\n",
    1282           0 :                        ost->file_index, ost->index, s->oformat->name,
    1283           0 :                        avcodec_get_name(ost->st->codecpar->codec_id));
    1284           0 :                 return AVERROR_ENCODER_NOT_FOUND;
    1285             :             }
    1286        3009 :         } else if (!strcmp(codec_name, "copy"))
    1287         212 :             ost->stream_copy = 1;
    1288             :         else {
    1289        2797 :             ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
    1290        2797 :             ost->st->codecpar->codec_id = ost->enc->id;
    1291             :         }
    1292        5541 :         ost->encoding_needed = !ost->stream_copy;
    1293             :     } else {
    1294             :         /* no encoding supported for other media types */
    1295          11 :         ost->stream_copy     = 1;
    1296          11 :         ost->encoding_needed = 0;
    1297             :     }
    1298             : 
    1299        5552 :     return 0;
    1300             : }
    1301             : 
    1302        5552 : static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
    1303             : {
    1304             :     OutputStream *ost;
    1305        5552 :     AVStream *st = avformat_new_stream(oc, NULL);
    1306        5552 :     int idx      = oc->nb_streams - 1, ret = 0;
    1307        5552 :     const char *bsfs = NULL, *time_base = NULL;
    1308        5552 :     char *next, *codec_tag = NULL;
    1309        5552 :     double qscale = -1;
    1310             :     int i;
    1311             : 
    1312        5552 :     if (!st) {
    1313           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
    1314           0 :         exit_program(1);
    1315             :     }
    1316             : 
    1317        5552 :     if (oc->nb_streams - 1 < o->nb_streamid_map)
    1318           0 :         st->id = o->streamid_map[oc->nb_streams - 1];
    1319             : 
    1320        5552 :     GROW_ARRAY(output_streams, nb_output_streams);
    1321        5552 :     if (!(ost = av_mallocz(sizeof(*ost))))
    1322           0 :         exit_program(1);
    1323        5552 :     output_streams[nb_output_streams - 1] = ost;
    1324             : 
    1325        5552 :     ost->file_index = nb_output_files - 1;
    1326        5552 :     ost->index      = idx;
    1327        5552 :     ost->st         = st;
    1328        5552 :     st->codecpar->codec_type = type;
    1329             : 
    1330        5552 :     ret = choose_encoder(o, oc, ost);
    1331        5552 :     if (ret < 0) {
    1332           0 :         av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
    1333             :                "%d:%d\n", ost->file_index, ost->index);
    1334           0 :         exit_program(1);
    1335             :     }
    1336             : 
    1337        5552 :     ost->enc_ctx = avcodec_alloc_context3(ost->enc);
    1338        5552 :     if (!ost->enc_ctx) {
    1339           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
    1340           0 :         exit_program(1);
    1341             :     }
    1342        5552 :     ost->enc_ctx->codec_type = type;
    1343             : 
    1344        5552 :     ost->ref_par = avcodec_parameters_alloc();
    1345        5552 :     if (!ost->ref_par) {
    1346           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding parameters.\n");
    1347           0 :         exit_program(1);
    1348             :     }
    1349             : 
    1350        5552 :     if (ost->enc) {
    1351        5329 :         AVIOContext *s = NULL;
    1352        5329 :         char *buf = NULL, *arg = NULL, *preset = NULL;
    1353             : 
    1354        5329 :         ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
    1355             : 
    1356        5329 :         MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
    1357        5329 :         if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
    1358             :             do  {
    1359           0 :                 buf = get_line(s);
    1360           0 :                 if (!buf[0] || buf[0] == '#') {
    1361           0 :                     av_free(buf);
    1362           0 :                     continue;
    1363             :                 }
    1364           0 :                 if (!(arg = strchr(buf, '='))) {
    1365           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
    1366           0 :                     exit_program(1);
    1367             :                 }
    1368           0 :                 *arg++ = 0;
    1369           0 :                 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
    1370           0 :                 av_free(buf);
    1371           0 :             } while (!s->eof_reached);
    1372           0 :             avio_closep(&s);
    1373             :         }
    1374        5329 :         if (ret) {
    1375           0 :             av_log(NULL, AV_LOG_FATAL,
    1376             :                    "Preset %s specified for stream %d:%d, but could not be opened.\n",
    1377             :                    preset, ost->file_index, ost->index);
    1378           0 :             exit_program(1);
    1379             :         }
    1380             :     } else {
    1381         223 :         ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
    1382             :     }
    1383             : 
    1384             : 
    1385        5552 :     if (o->bitexact)
    1386        1600 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
    1387             : 
    1388        5552 :     MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
    1389        5552 :     if (time_base) {
    1390             :         AVRational q;
    1391           2 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1392           2 :             q.num <= 0 || q.den <= 0) {
    1393           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1394           0 :             exit_program(1);
    1395             :         }
    1396           1 :         st->time_base = q;
    1397             :     }
    1398             : 
    1399        5552 :     MATCH_PER_STREAM_OPT(enc_time_bases, str, time_base, oc, st);
    1400        5552 :     if (time_base) {
    1401             :         AVRational q;
    1402           2 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1403           1 :             q.den <= 0) {
    1404           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1405           0 :             exit_program(1);
    1406             :         }
    1407           1 :         ost->enc_timebase = q;
    1408             :     }
    1409             : 
    1410        5552 :     ost->max_frames = INT64_MAX;
    1411        5552 :     MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
    1412        9143 :     for (i = 0; i<o->nb_max_frames; i++) {
    1413        3597 :         char *p = o->max_frames[i].specifier;
    1414        3597 :         if (!*p && type != AVMEDIA_TYPE_VIDEO) {
    1415           6 :             av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
    1416           6 :             break;
    1417             :         }
    1418             :     }
    1419             : 
    1420        5552 :     ost->copy_prior_start = -1;
    1421        5552 :     MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
    1422             : 
    1423        5552 :     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
    1424       11147 :     while (bsfs && *bsfs) {
    1425             :         const AVBitStreamFilter *filter;
    1426             :         char *bsf, *bsf_options_str, *bsf_name;
    1427             : 
    1428          43 :         bsf = av_get_token(&bsfs, ",");
    1429          43 :         if (!bsf)
    1430           0 :             exit_program(1);
    1431          43 :         bsf_name = av_strtok(bsf, "=", &bsf_options_str);
    1432          43 :         if (!bsf_name)
    1433           0 :             exit_program(1);
    1434             : 
    1435          43 :         filter = av_bsf_get_by_name(bsf_name);
    1436          43 :         if (!filter) {
    1437           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
    1438           0 :             exit_program(1);
    1439             :         }
    1440             : 
    1441          43 :         ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
    1442          43 :                                         ost->nb_bitstream_filters + 1,
    1443             :                                         sizeof(*ost->bsf_ctx));
    1444          43 :         if (!ost->bsf_ctx)
    1445           0 :             exit_program(1);
    1446             : 
    1447          43 :         ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
    1448          43 :         if (ret < 0) {
    1449           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
    1450           0 :             exit_program(1);
    1451             :         }
    1452             : 
    1453          43 :         ost->nb_bitstream_filters++;
    1454             : 
    1455          43 :         if (bsf_options_str && filter->priv_class) {
    1456           3 :             const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
    1457           3 :             const char * shorthand[2] = {NULL};
    1458             : 
    1459           3 :             if (opt)
    1460           3 :                 shorthand[0] = opt->name;
    1461             : 
    1462           3 :             ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
    1463           3 :             if (ret < 0) {
    1464           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
    1465           0 :                 exit_program(1);
    1466             :             }
    1467             :         }
    1468          43 :         av_freep(&bsf);
    1469             : 
    1470          43 :         if (*bsfs)
    1471           0 :             bsfs++;
    1472             :     }
    1473             : 
    1474        5552 :     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
    1475        5552 :     if (codec_tag) {
    1476           0 :         uint32_t tag = strtol(codec_tag, &next, 0);
    1477           0 :         if (*next)
    1478           0 :             tag = AV_RL32(codec_tag);
    1479           0 :         ost->st->codecpar->codec_tag =
    1480           0 :         ost->enc_ctx->codec_tag = tag;
    1481             :     }
    1482             : 
    1483        5552 :     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
    1484        5552 :     if (qscale >= 0) {
    1485         225 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
    1486         225 :         ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
    1487             :     }
    1488             : 
    1489        5552 :     MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
    1490        5552 :     ost->disposition = av_strdup(ost->disposition);
    1491             : 
    1492        5552 :     ost->max_muxing_queue_size = 128;
    1493        5552 :     MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
    1494        5552 :     ost->max_muxing_queue_size *= sizeof(AVPacket);
    1495             : 
    1496        5552 :     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
    1497        1973 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    1498             : 
    1499        5552 :     av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
    1500             : 
    1501        5552 :     av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
    1502        5552 :     if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
    1503          49 :         av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
    1504             : 
    1505        5552 :     av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
    1506             : 
    1507        5552 :     ost->source_index = source_index;
    1508        5552 :     if (source_index >= 0) {
    1509        5491 :         ost->sync_ist = input_streams[source_index];
    1510        5491 :         input_streams[source_index]->discard = 0;
    1511        5491 :         input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
    1512             :     }
    1513        5552 :     ost->last_mux_dts = AV_NOPTS_VALUE;
    1514             : 
    1515        5552 :     ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
    1516        5552 :     if (!ost->muxing_queue)
    1517           0 :         exit_program(1);
    1518             : 
    1519        5552 :     return ost;
    1520             : }
    1521             : 
    1522           0 : static void parse_matrix_coeffs(uint16_t *dest, const char *str)
    1523             : {
    1524             :     int i;
    1525           0 :     const char *p = str;
    1526           0 :     for (i = 0;; i++) {
    1527           0 :         dest[i] = atoi(p);
    1528           0 :         if (i == 63)
    1529           0 :             break;
    1530           0 :         p = strchr(p, ',');
    1531           0 :         if (!p) {
    1532           0 :             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
    1533           0 :             exit_program(1);
    1534             :         }
    1535           0 :         p++;
    1536             :     }
    1537           0 : }
    1538             : 
    1539             : /* read file contents into a string */
    1540          25 : static uint8_t *read_file(const char *filename)
    1541             : {
    1542          25 :     AVIOContext *pb      = NULL;
    1543          25 :     AVIOContext *dyn_buf = NULL;
    1544          25 :     int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
    1545             :     uint8_t buf[1024], *str;
    1546             : 
    1547          25 :     if (ret < 0) {
    1548           0 :         av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
    1549           0 :         return NULL;
    1550             :     }
    1551             : 
    1552          25 :     ret = avio_open_dyn_buf(&dyn_buf);
    1553          25 :     if (ret < 0) {
    1554           0 :         avio_closep(&pb);
    1555           0 :         return NULL;
    1556             :     }
    1557          75 :     while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
    1558          25 :         avio_write(dyn_buf, buf, ret);
    1559          25 :     avio_w8(dyn_buf, 0);
    1560          25 :     avio_closep(&pb);
    1561             : 
    1562          25 :     ret = avio_close_dyn_buf(dyn_buf, &str);
    1563          25 :     if (ret < 0)
    1564           0 :         return NULL;
    1565          25 :     return str;
    1566             : }
    1567             : 
    1568        5299 : static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
    1569             :                              OutputStream *ost)
    1570             : {
    1571        5299 :     AVStream *st = ost->st;
    1572             : 
    1573        5299 :     if (ost->filters_script && ost->filters) {
    1574           0 :         av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
    1575             :                "output stream #%d:%d.\n", nb_output_files, st->index);
    1576           0 :         exit_program(1);
    1577             :     }
    1578             : 
    1579        5299 :     if (ost->filters_script)
    1580           4 :         return read_file(ost->filters_script);
    1581        5295 :     else if (ost->filters)
    1582        2261 :         return av_strdup(ost->filters);
    1583             : 
    1584        3034 :     return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
    1585             :                      "null" : "anull");
    1586             : }
    1587             : 
    1588         206 : static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
    1589             :                                      const OutputStream *ost, enum AVMediaType type)
    1590             : {
    1591         206 :     if (ost->filters_script || ost->filters) {
    1592           0 :         av_log(NULL, AV_LOG_ERROR,
    1593             :                "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
    1594             :                "Filtering and streamcopy cannot be used together.\n",
    1595           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    1596           0 :                ost->filters ? ost->filters : ost->filters_script,
    1597             :                av_get_media_type_string(type), ost->file_index, ost->index);
    1598           0 :         exit_program(1);
    1599             :     }
    1600         206 : }
    1601             : 
    1602        4351 : static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1603             : {
    1604             :     AVStream *st;
    1605             :     OutputStream *ost;
    1606             :     AVCodecContext *video_enc;
    1607        4351 :     char *frame_rate = NULL, *frame_aspect_ratio = NULL;
    1608             : 
    1609        4351 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
    1610        4351 :     st  = ost->st;
    1611        4351 :     video_enc = ost->enc_ctx;
    1612             : 
    1613        4351 :     MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
    1614        4351 :     if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
    1615           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
    1616           0 :         exit_program(1);
    1617             :     }
    1618        4351 :     if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
    1619           0 :         av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
    1620             : 
    1621        4351 :     MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
    1622        4351 :     if (frame_aspect_ratio) {
    1623             :         AVRational q;
    1624           0 :         if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
    1625           0 :             q.num <= 0 || q.den <= 0) {
    1626           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
    1627           0 :             exit_program(1);
    1628             :         }
    1629           0 :         ost->frame_aspect_ratio = q;
    1630             :     }
    1631             : 
    1632        4351 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1633        4351 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1634             : 
    1635        4351 :     if (!ost->stream_copy) {
    1636        4234 :         const char *p = NULL;
    1637        4234 :         char *frame_size = NULL;
    1638        4234 :         char *frame_pix_fmt = NULL;
    1639        4234 :         char *intra_matrix = NULL, *inter_matrix = NULL;
    1640        4234 :         char *chroma_intra_matrix = NULL;
    1641        4234 :         int do_pass = 0;
    1642             :         int i;
    1643             : 
    1644        4234 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1645        4234 :         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
    1646           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1647           0 :             exit_program(1);
    1648             :         }
    1649             : 
    1650        4234 :         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
    1651        4234 :         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
    1652        4234 :         if (frame_pix_fmt && *frame_pix_fmt == '+') {
    1653           0 :             ost->keep_pix_fmt = 1;
    1654           0 :             if (!*++frame_pix_fmt)
    1655           0 :                 frame_pix_fmt = NULL;
    1656             :         }
    1657        4234 :         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
    1658           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
    1659           0 :             exit_program(1);
    1660             :         }
    1661        4234 :         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
    1662             : 
    1663        4234 :         if (intra_only)
    1664           0 :             video_enc->gop_size = 0;
    1665        4234 :         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
    1666        4234 :         if (intra_matrix) {
    1667           0 :             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
    1668           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1669           0 :                 exit_program(1);
    1670             :             }
    1671           0 :             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
    1672             :         }
    1673        4234 :         MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
    1674        4234 :         if (chroma_intra_matrix) {
    1675           0 :             uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
    1676           0 :             if (!p) {
    1677           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1678           0 :                 exit_program(1);
    1679             :             }
    1680           0 :             video_enc->chroma_intra_matrix = p;
    1681           0 :             parse_matrix_coeffs(p, chroma_intra_matrix);
    1682             :         }
    1683        4234 :         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
    1684        4234 :         if (inter_matrix) {
    1685           0 :             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
    1686           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
    1687           0 :                 exit_program(1);
    1688             :             }
    1689           0 :             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
    1690             :         }
    1691             : 
    1692        4234 :         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
    1693        4234 :         for (i = 0; p; i++) {
    1694             :             int start, end, q;
    1695           0 :             int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
    1696           0 :             if (e != 3) {
    1697           0 :                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
    1698           0 :                 exit_program(1);
    1699             :             }
    1700           0 :             video_enc->rc_override =
    1701           0 :                 av_realloc_array(video_enc->rc_override,
    1702           0 :                                  i + 1, sizeof(RcOverride));
    1703           0 :             if (!video_enc->rc_override) {
    1704           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
    1705           0 :                 exit_program(1);
    1706             :             }
    1707           0 :             video_enc->rc_override[i].start_frame = start;
    1708           0 :             video_enc->rc_override[i].end_frame   = end;
    1709           0 :             if (q > 0) {
    1710           0 :                 video_enc->rc_override[i].qscale         = q;
    1711           0 :                 video_enc->rc_override[i].quality_factor = 1.0;
    1712             :             }
    1713             :             else {
    1714           0 :                 video_enc->rc_override[i].qscale         = 0;
    1715           0 :                 video_enc->rc_override[i].quality_factor = -q/100.0;
    1716             :             }
    1717           0 :             p = strchr(p, '/');
    1718           0 :             if (p) p++;
    1719             :         }
    1720        4234 :         video_enc->rc_override_count = i;
    1721             : 
    1722        4234 :         if (do_psnr)
    1723           0 :             video_enc->flags|= AV_CODEC_FLAG_PSNR;
    1724             : 
    1725             :         /* two pass mode */
    1726        4234 :         MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
    1727        4234 :         if (do_pass) {
    1728           0 :             if (do_pass & 1) {
    1729           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS1;
    1730           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
    1731             :             }
    1732           0 :             if (do_pass & 2) {
    1733           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS2;
    1734           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
    1735             :             }
    1736             :         }
    1737             : 
    1738        4234 :         MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
    1739        4234 :         if (ost->logfile_prefix &&
    1740           0 :             !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
    1741           0 :             exit_program(1);
    1742             : 
    1743        4234 :         if (do_pass) {
    1744             :             char logfilename[1024];
    1745             :             FILE *f;
    1746             : 
    1747           0 :             snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
    1748           0 :                      ost->logfile_prefix ? ost->logfile_prefix :
    1749             :                                            DEFAULT_PASS_LOGFILENAME_PREFIX,
    1750             :                      i);
    1751           0 :             if (!strcmp(ost->enc->name, "libx264")) {
    1752           0 :                 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
    1753             :             } else {
    1754           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
    1755           0 :                     char  *logbuffer = read_file(logfilename);
    1756             : 
    1757           0 :                     if (!logbuffer) {
    1758           0 :                         av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
    1759             :                                logfilename);
    1760           0 :                         exit_program(1);
    1761             :                     }
    1762           0 :                     video_enc->stats_in = logbuffer;
    1763             :                 }
    1764           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
    1765           0 :                     f = av_fopen_utf8(logfilename, "wb");
    1766           0 :                     if (!f) {
    1767           0 :                         av_log(NULL, AV_LOG_FATAL,
    1768             :                                "Cannot write log file '%s' for pass-1 encoding: %s\n",
    1769           0 :                                logfilename, strerror(errno));
    1770           0 :                         exit_program(1);
    1771             :                     }
    1772           0 :                     ost->logfile = f;
    1773             :                 }
    1774             :             }
    1775             :         }
    1776             : 
    1777        4234 :         MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
    1778        4234 :         if (ost->forced_keyframes)
    1779           1 :             ost->forced_keyframes = av_strdup(ost->forced_keyframes);
    1780             : 
    1781        4234 :         MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
    1782             : 
    1783        4234 :         ost->top_field_first = -1;
    1784        4234 :         MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
    1785             : 
    1786             : 
    1787        4234 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1788        4234 :         if (!ost->avfilter)
    1789           0 :             exit_program(1);
    1790             :     } else {
    1791         117 :         MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
    1792             :     }
    1793             : 
    1794        4351 :     if (ost->stream_copy)
    1795         117 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
    1796             : 
    1797        4351 :     return ost;
    1798             : }
    1799             : 
    1800        1154 : static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1801             : {
    1802             :     int n;
    1803             :     AVStream *st;
    1804             :     OutputStream *ost;
    1805             :     AVCodecContext *audio_enc;
    1806             : 
    1807        1154 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
    1808        1154 :     st  = ost->st;
    1809             : 
    1810        1154 :     audio_enc = ost->enc_ctx;
    1811        1154 :     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
    1812             : 
    1813        1154 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1814        1154 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1815             : 
    1816        1154 :     if (!ost->stream_copy) {
    1817        1065 :         char *sample_fmt = NULL;
    1818             : 
    1819        1065 :         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
    1820             : 
    1821        1065 :         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
    1822        1065 :         if (sample_fmt &&
    1823           0 :             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
    1824           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
    1825           0 :             exit_program(1);
    1826             :         }
    1827             : 
    1828        1065 :         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
    1829             : 
    1830        1065 :         MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
    1831        1065 :         ost->apad = av_strdup(ost->apad);
    1832             : 
    1833        1065 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1834        1065 :         if (!ost->avfilter)
    1835           0 :             exit_program(1);
    1836             : 
    1837             :         /* check for channel mapping for this audio stream */
    1838        1075 :         for (n = 0; n < o->nb_audio_channel_maps; n++) {
    1839          10 :             AudioChannelMap *map = &o->audio_channel_maps[n];
    1840          20 :             if ((map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
    1841          10 :                 (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
    1842             :                 InputStream *ist;
    1843             : 
    1844          10 :                 if (map->channel_idx == -1) {
    1845           1 :                     ist = NULL;
    1846           9 :                 } else if (ost->source_index < 0) {
    1847           0 :                     av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
    1848           0 :                            ost->file_index, ost->st->index);
    1849           0 :                     continue;
    1850             :                 } else {
    1851           9 :                     ist = input_streams[ost->source_index];
    1852             :                 }
    1853             : 
    1854          10 :                 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
    1855          10 :                     if (av_reallocp_array(&ost->audio_channels_map,
    1856          10 :                                           ost->audio_channels_mapped + 1,
    1857             :                                           sizeof(*ost->audio_channels_map)
    1858             :                                           ) < 0 )
    1859           0 :                         exit_program(1);
    1860             : 
    1861          10 :                     ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
    1862             :                 }
    1863             :             }
    1864             :         }
    1865             :     }
    1866             : 
    1867        1154 :     if (ost->stream_copy)
    1868          89 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
    1869             : 
    1870        1154 :     return ost;
    1871             : }
    1872             : 
    1873          10 : static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1874             : {
    1875             :     OutputStream *ost;
    1876             : 
    1877          10 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
    1878          10 :     if (!ost->stream_copy) {
    1879           0 :         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
    1880           0 :         exit_program(1);
    1881             :     }
    1882             : 
    1883          10 :     return ost;
    1884             : }
    1885             : 
    1886           0 : static OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1887             : {
    1888             :     OutputStream *ost;
    1889             : 
    1890           0 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
    1891           0 :     if (!ost->stream_copy) {
    1892           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
    1893           0 :         exit_program(1);
    1894             :     }
    1895             : 
    1896           0 :     return ost;
    1897             : }
    1898             : 
    1899           1 : static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1900             : {
    1901           1 :     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
    1902           1 :     ost->stream_copy = 1;
    1903           1 :     ost->finished    = 1;
    1904           1 :     return ost;
    1905             : }
    1906             : 
    1907          36 : static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1908             : {
    1909             :     AVStream *st;
    1910             :     OutputStream *ost;
    1911             :     AVCodecContext *subtitle_enc;
    1912             : 
    1913          36 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
    1914          36 :     st  = ost->st;
    1915          36 :     subtitle_enc = ost->enc_ctx;
    1916             : 
    1917          36 :     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
    1918             : 
    1919          36 :     MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
    1920             : 
    1921          36 :     if (!ost->stream_copy) {
    1922          30 :         char *frame_size = NULL;
    1923             : 
    1924          30 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1925          30 :         if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
    1926           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1927           0 :             exit_program(1);
    1928             :         }
    1929             :     }
    1930             : 
    1931          36 :     return ost;
    1932             : }
    1933             : 
    1934             : /* arg format is "output-stream-index:streamid-value". */
    1935           0 : static int opt_streamid(void *optctx, const char *opt, const char *arg)
    1936             : {
    1937           0 :     OptionsContext *o = optctx;
    1938             :     int idx;
    1939             :     char *p;
    1940             :     char idx_str[16];
    1941             : 
    1942           0 :     av_strlcpy(idx_str, arg, sizeof(idx_str));
    1943           0 :     p = strchr(idx_str, ':');
    1944           0 :     if (!p) {
    1945           0 :         av_log(NULL, AV_LOG_FATAL,
    1946             :                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
    1947             :                arg, opt);
    1948           0 :         exit_program(1);
    1949             :     }
    1950           0 :     *p++ = '\0';
    1951           0 :     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
    1952           0 :     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
    1953           0 :     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
    1954           0 :     return 0;
    1955             : }
    1956             : 
    1957          10 : static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
    1958             : {
    1959          10 :     AVFormatContext *is = ifile->ctx;
    1960          10 :     AVFormatContext *os = ofile->ctx;
    1961             :     AVChapter **tmp;
    1962             :     int i;
    1963             : 
    1964          10 :     tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
    1965          10 :     if (!tmp)
    1966           0 :         return AVERROR(ENOMEM);
    1967          10 :     os->chapters = tmp;
    1968             : 
    1969          20 :     for (i = 0; i < is->nb_chapters; i++) {
    1970          10 :         AVChapter *in_ch = is->chapters[i], *out_ch;
    1971          10 :         int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
    1972          10 :         int64_t ts_off   = av_rescale_q(start_time - ifile->ts_offset,
    1973          10 :                                        AV_TIME_BASE_Q, in_ch->time_base);
    1974          10 :         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
    1975           0 :                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
    1976             : 
    1977             : 
    1978          10 :         if (in_ch->end < ts_off)
    1979           0 :             continue;
    1980          10 :         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
    1981           0 :             break;
    1982             : 
    1983          10 :         out_ch = av_mallocz(sizeof(AVChapter));
    1984          10 :         if (!out_ch)
    1985           0 :             return AVERROR(ENOMEM);
    1986             : 
    1987          10 :         out_ch->id        = in_ch->id;
    1988          10 :         out_ch->time_base = in_ch->time_base;
    1989          10 :         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
    1990          10 :         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
    1991             : 
    1992          10 :         if (copy_metadata)
    1993          10 :             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
    1994             : 
    1995          10 :         os->chapters[os->nb_chapters++] = out_ch;
    1996             :     }
    1997          10 :     return 0;
    1998             : }
    1999             : 
    2000           0 : static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
    2001             : {
    2002             :     int i, err;
    2003           0 :     AVFormatContext *ic = avformat_alloc_context();
    2004           0 :     if (!ic)
    2005           0 :         return AVERROR(ENOMEM);
    2006             : 
    2007           0 :     ic->interrupt_callback = int_cb;
    2008           0 :     err = avformat_open_input(&ic, filename, NULL, NULL);
    2009           0 :     if (err < 0)
    2010           0 :         return err;
    2011             :     /* copy stream format */
    2012           0 :     for(i=0;i<ic->nb_streams;i++) {
    2013             :         AVStream *st;
    2014             :         OutputStream *ost;
    2015             :         AVCodec *codec;
    2016             :         const char *enc_config;
    2017             : 
    2018           0 :         codec = avcodec_find_encoder(ic->streams[i]->codecpar->codec_id);
    2019           0 :         if (!codec) {
    2020           0 :             av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codecpar->codec_id);
    2021           0 :             return AVERROR(EINVAL);
    2022             :         }
    2023           0 :         if (codec->type == AVMEDIA_TYPE_AUDIO)
    2024           0 :             opt_audio_codec(o, "c:a", codec->name);
    2025           0 :         else if (codec->type == AVMEDIA_TYPE_VIDEO)
    2026           0 :             opt_video_codec(o, "c:v", codec->name);
    2027           0 :         ost   = new_output_stream(o, s, codec->type, -1);
    2028           0 :         st    = ost->st;
    2029             : 
    2030           0 :         avcodec_get_context_defaults3(st->codec, codec);
    2031           0 :         enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
    2032           0 :         if (enc_config) {
    2033           0 :             AVDictionary *opts = NULL;
    2034           0 :             av_dict_parse_string(&opts, enc_config, "=", ",", 0);
    2035           0 :             av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
    2036           0 :             av_dict_free(&opts);
    2037             :         }
    2038             : 
    2039           0 :         if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
    2040           0 :             choose_sample_fmt(st, codec);
    2041           0 :         else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
    2042           0 :             choose_pixel_fmt(st, st->codec, codec, st->codecpar->format);
    2043           0 :         avcodec_copy_context(ost->enc_ctx, st->codec);
    2044           0 :         if (enc_config)
    2045           0 :             av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
    2046             :     }
    2047             : 
    2048           0 :     avformat_close_input(&ic);
    2049           0 :     return err;
    2050             : }
    2051             : 
    2052          60 : static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
    2053             :                                AVFormatContext *oc)
    2054             : {
    2055             :     OutputStream *ost;
    2056             : 
    2057          60 :     switch (ofilter->type) {
    2058          46 :     case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
    2059          14 :     case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
    2060           0 :     default:
    2061           0 :         av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
    2062             :                "currently.\n");
    2063           0 :         exit_program(1);
    2064             :     }
    2065             : 
    2066          60 :     ost->source_index = -1;
    2067          60 :     ost->filter       = ofilter;
    2068             : 
    2069          60 :     ofilter->ost      = ost;
    2070          60 :     ofilter->format   = -1;
    2071             : 
    2072          60 :     if (ost->stream_copy) {
    2073           0 :         av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
    2074             :                "which is fed from a complex filtergraph. Filtering and streamcopy "
    2075             :                "cannot be used together.\n", ost->file_index, ost->index);
    2076           0 :         exit_program(1);
    2077             :     }
    2078             : 
    2079          60 :     if (ost->avfilter && (ost->filters || ost->filters_script)) {
    2080           0 :         const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
    2081           0 :         av_log(NULL, AV_LOG_ERROR,
    2082             :                "%s '%s' was specified through the %s option "
    2083             :                "for output stream %d:%d, which is fed from a complex filtergraph.\n"
    2084             :                "%s and -filter_complex cannot be used together for the same stream.\n",
    2085           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    2086           0 :                ost->filters ? ost->filters : ost->filters_script,
    2087             :                opt, ost->file_index, ost->index, opt);
    2088           0 :         exit_program(1);
    2089             :     }
    2090             : 
    2091          60 :     avfilter_inout_free(&ofilter->out_tmp);
    2092          60 : }
    2093             : 
    2094        5411 : static int init_complex_filters(void)
    2095             : {
    2096        5411 :     int i, ret = 0;
    2097             : 
    2098        5469 :     for (i = 0; i < nb_filtergraphs; i++) {
    2099          58 :         ret = init_complex_filtergraph(filtergraphs[i]);
    2100          58 :         if (ret < 0)
    2101           0 :             return ret;
    2102             :     }
    2103        5411 :     return 0;
    2104             : }
    2105             : 
    2106        5412 : static int open_output_file(OptionsContext *o, const char *filename)
    2107             : {
    2108             :     AVFormatContext *oc;
    2109             :     int i, j, err;
    2110             :     AVOutputFormat *file_oformat;
    2111             :     OutputFile *of;
    2112             :     OutputStream *ost;
    2113             :     InputStream  *ist;
    2114        5412 :     AVDictionary *unused_opts = NULL;
    2115        5412 :     AVDictionaryEntry *e = NULL;
    2116        5412 :     int format_flags = 0;
    2117             : 
    2118        5412 :     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
    2119           0 :         o->stop_time = INT64_MAX;
    2120           0 :         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
    2121             :     }
    2122             : 
    2123        5412 :     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
    2124           0 :         int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
    2125           0 :         if (o->stop_time <= start_time) {
    2126           0 :             av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
    2127           0 :             exit_program(1);
    2128             :         } else {
    2129           0 :             o->recording_time = o->stop_time - start_time;
    2130             :         }
    2131             :     }
    2132             : 
    2133        5412 :     GROW_ARRAY(output_files, nb_output_files);
    2134        5412 :     of = av_mallocz(sizeof(*of));
    2135        5412 :     if (!of)
    2136           0 :         exit_program(1);
    2137        5412 :     output_files[nb_output_files - 1] = of;
    2138             : 
    2139        5412 :     of->ost_index      = nb_output_streams;
    2140        5412 :     of->recording_time = o->recording_time;
    2141        5412 :     of->start_time     = o->start_time;
    2142        5412 :     of->limit_filesize = o->limit_filesize;
    2143        5412 :     of->shortest       = o->shortest;
    2144        5412 :     av_dict_copy(&of->opts, o->g->format_opts, 0);
    2145             : 
    2146        5412 :     if (!strcmp(filename, "-"))
    2147        2124 :         filename = "pipe:";
    2148             : 
    2149        5412 :     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
    2150        5412 :     if (!oc) {
    2151           0 :         print_error(filename, err);
    2152           0 :         exit_program(1);
    2153             :     }
    2154             : 
    2155        5412 :     of->ctx = oc;
    2156        5412 :     if (o->recording_time != INT64_MAX)
    2157         113 :         oc->duration = o->recording_time;
    2158             : 
    2159        5412 :     file_oformat= oc->oformat;
    2160        5412 :     oc->interrupt_callback = int_cb;
    2161             : 
    2162        5412 :     e = av_dict_get(o->g->format_opts, "fflags", NULL, 0);
    2163        5412 :     if (e) {
    2164        2999 :         const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
    2165        2999 :         av_opt_eval_flags(oc, o, e->value, &format_flags);
    2166             :     }
    2167        5412 :     if (o->bitexact) {
    2168        1556 :         format_flags |= AVFMT_FLAG_BITEXACT;
    2169        1556 :         oc->flags    |= AVFMT_FLAG_BITEXACT;
    2170             :     }
    2171             : 
    2172             :     /* create streams for all unlabeled output pads */
    2173        5471 :     for (i = 0; i < nb_filtergraphs; i++) {
    2174          59 :         FilterGraph *fg = filtergraphs[i];
    2175         120 :         for (j = 0; j < fg->nb_outputs; j++) {
    2176          61 :             OutputFilter *ofilter = fg->outputs[j];
    2177             : 
    2178          61 :             if (!ofilter->out_tmp || ofilter->out_tmp->name)
    2179           4 :                 continue;
    2180             : 
    2181          57 :             switch (ofilter->type) {
    2182          44 :             case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
    2183          13 :             case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
    2184           0 :             case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
    2185             :             }
    2186          57 :             init_output_filter(ofilter, o, oc);
    2187             :         }
    2188             :     }
    2189             : 
    2190             :     /* ffserver seeking with date=... needs a date reference */
    2191        5413 :     if (!strcmp(file_oformat->name, "ffm") &&
    2192           1 :         !(format_flags & AVFMT_FLAG_BITEXACT) &&
    2193           0 :         av_strstart(filename, "http:", NULL)) {
    2194           0 :         int err = parse_option(o, "metadata", "creation_time=now", options);
    2195           0 :         if (err < 0) {
    2196           0 :             print_error(filename, err);
    2197           0 :             exit_program(1);
    2198             :         }
    2199             :     }
    2200             : 
    2201        5413 :     if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
    2202           1 :         av_strstart(filename, "http:", NULL)) {
    2203             :         int j;
    2204             :         /* special case for files sent to ffserver: we get the stream
    2205             :            parameters from ffserver */
    2206           0 :         int err = read_ffserver_streams(o, oc, filename);
    2207           0 :         if (err < 0) {
    2208           0 :             print_error(filename, err);
    2209           0 :             exit_program(1);
    2210             :         }
    2211           0 :         for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
    2212           0 :             ost = output_streams[j];
    2213           0 :             for (i = 0; i < nb_input_streams; i++) {
    2214           0 :                 ist = input_streams[i];
    2215           0 :                 if(ist->st->codecpar->codec_type == ost->st->codecpar->codec_type){
    2216           0 :                     ost->sync_ist= ist;
    2217           0 :                     ost->source_index= i;
    2218           0 :                     if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
    2219           0 :                     if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
    2220           0 :                     ist->discard = 0;
    2221           0 :                     ist->st->discard = ist->user_set_discard;
    2222           0 :                     break;
    2223             :                 }
    2224             :             }
    2225           0 :             if(!ost->sync_ist){
    2226           0 :                 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codecpar->codec_type));
    2227           0 :                 exit_program(1);
    2228             :             }
    2229             :         }
    2230        5412 :     } else if (!o->nb_stream_maps) {
    2231        5380 :         char *subtitle_codec_name = NULL;
    2232             :         /* pick the "best" stream of each type */
    2233             : 
    2234             :         /* video: highest resolution */
    2235        5380 :         if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
    2236        4493 :             int area = 0, idx = -1;
    2237        4493 :             int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
    2238        9259 :             for (i = 0; i < nb_input_streams; i++) {
    2239             :                 int new_area;
    2240        4766 :                 ist = input_streams[i];
    2241        4766 :                 new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames;
    2242        4766 :                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2243           8 :                     new_area = 1;
    2244        4766 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
    2245             :                     new_area > area) {
    2246        4284 :                     if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2247           0 :                         continue;
    2248        4284 :                     area = new_area;
    2249        4284 :                     idx = i;
    2250             :                 }
    2251             :             }
    2252        4493 :             if (idx >= 0)
    2253        4284 :                 new_video_stream(o, oc, idx);
    2254             :         }
    2255             : 
    2256             :         /* audio: most channels */
    2257        5380 :         if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
    2258        4551 :             int best_score = 0, idx = -1;
    2259        9289 :             for (i = 0; i < nb_input_streams; i++) {
    2260             :                 int score;
    2261        4738 :                 ist = input_streams[i];
    2262        4738 :                 score = ist->st->codecpar->channels + 100000000*!!ist->st->codec_info_nb_frames;
    2263        4738 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
    2264             :                     score > best_score) {
    2265        1120 :                     best_score = score;
    2266        1120 :                     idx = i;
    2267             :                 }
    2268             :             }
    2269        4551 :             if (idx >= 0)
    2270        1120 :                 new_audio_stream(o, oc, idx);
    2271             :         }
    2272             : 
    2273             :         /* subtitles: pick first */
    2274        5380 :         MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
    2275        5380 :         if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
    2276          53 :             for (i = 0; i < nb_input_streams; i++)
    2277          46 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
    2278          34 :                     AVCodecDescriptor const *input_descriptor =
    2279          34 :                         avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
    2280          34 :                     AVCodecDescriptor const *output_descriptor = NULL;
    2281          34 :                     AVCodec const *output_codec =
    2282          34 :                         avcodec_find_encoder(oc->oformat->subtitle_codec);
    2283          34 :                     int input_props = 0, output_props = 0;
    2284          34 :                     if (output_codec)
    2285          33 :                         output_descriptor = avcodec_descriptor_get(output_codec->id);
    2286          34 :                     if (input_descriptor)
    2287          34 :                         input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2288          34 :                     if (output_descriptor)
    2289          33 :                         output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2290          62 :                     if (subtitle_codec_name ||
    2291          28 :                         input_props & output_props ||
    2292             :                         // Map dvb teletext which has neither property to any output subtitle encoder
    2293           0 :                         input_descriptor && output_descriptor &&
    2294           0 :                         (!input_descriptor->props ||
    2295           0 :                          !output_descriptor->props)) {
    2296          34 :                         new_subtitle_stream(o, oc, i);
    2297          34 :                         break;
    2298             :                     }
    2299             :                 }
    2300             :         }
    2301             :         /* Data only if codec id match */
    2302        5380 :         if (!o->data_disable ) {
    2303        5380 :             enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
    2304        5380 :             for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
    2305           0 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
    2306           0 :                     && input_streams[i]->st->codecpar->codec_id == codec_id )
    2307           0 :                     new_data_stream(o, oc, i);
    2308             :             }
    2309             :         }
    2310             :     } else {
    2311          88 :         for (i = 0; i < o->nb_stream_maps; i++) {
    2312          56 :             StreamMap *map = &o->stream_maps[i];
    2313             : 
    2314          56 :             if (map->disabled)
    2315           0 :                 continue;
    2316             : 
    2317          56 :             if (map->linklabel) {
    2318             :                 FilterGraph *fg;
    2319           3 :                 OutputFilter *ofilter = NULL;
    2320             :                 int j, k;
    2321             : 
    2322           3 :                 for (j = 0; j < nb_filtergraphs; j++) {
    2323           3 :                     fg = filtergraphs[j];
    2324           3 :                     for (k = 0; k < fg->nb_outputs; k++) {
    2325           3 :                         AVFilterInOut *out = fg->outputs[k]->out_tmp;
    2326           3 :                         if (out && !strcmp(out->name, map->linklabel)) {
    2327           3 :                             ofilter = fg->outputs[k];
    2328           3 :                             goto loop_end;
    2329             :                         }
    2330             :                     }
    2331             :                 }
    2332           0 : loop_end:
    2333           3 :                 if (!ofilter) {
    2334           0 :                     av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
    2335             :                            "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
    2336           0 :                     exit_program(1);
    2337             :                 }
    2338           3 :                 init_output_filter(ofilter, o, oc);
    2339             :             } else {
    2340          53 :                 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
    2341             : 
    2342          53 :                 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
    2343          53 :                 if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
    2344           0 :                     continue;
    2345          53 :                 if(o->   audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
    2346           0 :                     continue;
    2347          53 :                 if(o->   video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    2348           0 :                     continue;
    2349          53 :                 if(o->    data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
    2350           0 :                     continue;
    2351             : 
    2352          53 :                 ost = NULL;
    2353          53 :                 switch (ist->st->codecpar->codec_type) {
    2354          21 :                 case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
    2355          20 :                 case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
    2356           2 :                 case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
    2357          10 :                 case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
    2358           0 :                 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
    2359           0 :                 case AVMEDIA_TYPE_UNKNOWN:
    2360           0 :                     if (copy_unknown_streams) {
    2361           0 :                         ost = new_unknown_stream   (o, oc, src_idx);
    2362           0 :                         break;
    2363             :                     }
    2364             :                 default:
    2365           0 :                     av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
    2366             :                            "Cannot map stream #%d:%d - unsupported type.\n",
    2367             :                            map->file_index, map->stream_index);
    2368           0 :                     if (!ignore_unknown_streams) {
    2369           0 :                         av_log(NULL, AV_LOG_FATAL,
    2370             :                                "If you want unsupported types ignored instead "
    2371             :                                "of failing, please use the -ignore_unknown option\n"
    2372             :                                "If you want them copied, please use -copy_unknown\n");
    2373           0 :                         exit_program(1);
    2374             :                     }
    2375             :                 }
    2376          53 :                 if (ost)
    2377         106 :                     ost->sync_ist = input_streams[  input_files[map->sync_file_index]->ist_index
    2378          53 :                                                   + map->sync_stream_index];
    2379             :             }
    2380             :         }
    2381             :     }
    2382             : 
    2383             :     /* handle attached files */
    2384        5413 :     for (i = 0; i < o->nb_attachments; i++) {
    2385             :         AVIOContext *pb;
    2386             :         uint8_t *attachment;
    2387             :         const char *p;
    2388             :         int64_t len;
    2389             : 
    2390           1 :         if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
    2391           0 :             av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
    2392           0 :                    o->attachments[i]);
    2393           0 :             exit_program(1);
    2394             :         }
    2395           1 :         if ((len = avio_size(pb)) <= 0) {
    2396           0 :             av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
    2397           0 :                    o->attachments[i]);
    2398           0 :             exit_program(1);
    2399             :         }
    2400           1 :         if (!(attachment = av_malloc(len))) {
    2401           0 :             av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
    2402           0 :                    o->attachments[i]);
    2403           0 :             exit_program(1);
    2404             :         }
    2405           1 :         avio_read(pb, attachment, len);
    2406             : 
    2407           1 :         ost = new_attachment_stream(o, oc, -1);
    2408           1 :         ost->stream_copy               = 0;
    2409           1 :         ost->attachment_filename       = o->attachments[i];
    2410           1 :         ost->st->codecpar->extradata      = attachment;
    2411           1 :         ost->st->codecpar->extradata_size = len;
    2412             : 
    2413           1 :         p = strrchr(o->attachments[i], '/');
    2414           1 :         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
    2415           1 :         avio_closep(&pb);
    2416             :     }
    2417             : 
    2418             : #if FF_API_LAVF_AVCTX
    2419       10964 :     for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
    2420             :         AVDictionaryEntry *e;
    2421        5552 :         ost = output_streams[i];
    2422             : 
    2423        5552 :         if ((ost->stream_copy || ost->attachment_filename)
    2424         223 :             && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
    2425          57 :             && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
    2426          57 :             if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
    2427           0 :                 exit_program(1);
    2428             :     }
    2429             : #endif
    2430             : 
    2431        5412 :     if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
    2432           0 :         av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
    2433           0 :         av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
    2434           0 :         exit_program(1);
    2435             :     }
    2436             : 
    2437             :     /* check if all codec options have been used */
    2438        5412 :     unused_opts = strip_specifiers(o->g->codec_opts);
    2439       10964 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2440        5552 :         e = NULL;
    2441       23491 :         while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
    2442             :                                 AV_DICT_IGNORE_SUFFIX)))
    2443       12387 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    2444             :     }
    2445             : 
    2446        5412 :     e = NULL;
    2447       11072 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    2448         248 :         const AVClass *class = avcodec_get_class();
    2449         248 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    2450             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2451         248 :         const AVClass *fclass = avformat_get_class();
    2452         248 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    2453             :                                               AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2454         248 :         if (!option || foption)
    2455          10 :             continue;
    2456             : 
    2457             : 
    2458         247 :         if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
    2459           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    2460             :                    "output file #%d (%s) is not an encoding option.\n", e->key,
    2461           0 :                    option->help ? option->help : "", nb_output_files - 1,
    2462             :                    filename);
    2463           0 :             exit_program(1);
    2464             :         }
    2465             : 
    2466             :         // gop_timecode is injected by generic code but not always used
    2467         247 :         if (!strcmp(e->key, "gop_timecode"))
    2468           8 :             continue;
    2469             : 
    2470         478 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    2471             :                "output file #%d (%s) has not been used for any stream. The most "
    2472             :                "likely reason is either wrong type (e.g. a video option with "
    2473             :                "no video streams) or that it is a private option of some encoder "
    2474             :                "which was not actually used for any stream.\n", e->key,
    2475         239 :                option->help ? option->help : "", nb_output_files - 1, filename);
    2476             :     }
    2477        5412 :     av_dict_free(&unused_opts);
    2478             : 
    2479             :     /* set the decoding_needed flags and create simple filtergraphs */
    2480       10964 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2481        5552 :         OutputStream *ost = output_streams[i];
    2482             : 
    2483        5552 :         if (ost->encoding_needed && ost->source_index >= 0) {
    2484        5269 :             InputStream *ist = input_streams[ost->source_index];
    2485        5269 :             ist->decoding_needed |= DECODING_FOR_OST;
    2486             : 
    2487        6350 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
    2488        1081 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
    2489        5239 :                 err = init_simple_filtergraph(ist, ost);
    2490        5239 :                 if (err < 0) {
    2491           0 :                     av_log(NULL, AV_LOG_ERROR,
    2492             :                            "Error initializing a simple filtergraph between streams "
    2493             :                            "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
    2494           0 :                            nb_output_files - 1, ost->st->index);
    2495           0 :                     exit_program(1);
    2496             :                 }
    2497             :             }
    2498             :         }
    2499             : 
    2500             :         /* set the filter output constraints */
    2501        5552 :         if (ost->filter) {
    2502        5299 :             OutputFilter *f = ost->filter;
    2503             :             int count;
    2504        5299 :             switch (ost->enc_ctx->codec_type) {
    2505        4234 :             case AVMEDIA_TYPE_VIDEO:
    2506        4234 :                 f->frame_rate = ost->frame_rate;
    2507        4234 :                 f->width      = ost->enc_ctx->width;
    2508        4234 :                 f->height     = ost->enc_ctx->height;
    2509        4234 :                 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
    2510        2965 :                     f->format = ost->enc_ctx->pix_fmt;
    2511        1269 :                 } else if (ost->enc->pix_fmts) {
    2512         287 :                     count = 0;
    2513        1659 :                     while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
    2514        1085 :                         count++;
    2515         287 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2516         287 :                     if (!f->formats)
    2517           0 :                         exit_program(1);
    2518         287 :                     memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
    2519             :                 }
    2520        4234 :                 break;
    2521        1065 :             case AVMEDIA_TYPE_AUDIO:
    2522        1065 :                 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
    2523           0 :                     f->format = ost->enc_ctx->sample_fmt;
    2524        1065 :                 } else if (ost->enc->sample_fmts) {
    2525        1065 :                     count = 0;
    2526        3229 :                     while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
    2527        1099 :                         count++;
    2528        1065 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2529        1065 :                     if (!f->formats)
    2530           0 :                         exit_program(1);
    2531        1065 :                     memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
    2532             :                 }
    2533        1065 :                 if (ost->enc_ctx->sample_rate) {
    2534          26 :                     f->sample_rate = ost->enc_ctx->sample_rate;
    2535        1039 :                 } else if (ost->enc->supported_samplerates) {
    2536          22 :                     count = 0;
    2537         261 :                     while (ost->enc->supported_samplerates[count])
    2538         217 :                         count++;
    2539          22 :                     f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
    2540          22 :                     if (!f->sample_rates)
    2541           0 :                         exit_program(1);
    2542          22 :                     memcpy(f->sample_rates, ost->enc->supported_samplerates,
    2543          22 :                            (count + 1) * sizeof(*f->sample_rates));
    2544             :                 }
    2545        1065 :                 if (ost->enc_ctx->channels) {
    2546          12 :                     f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
    2547        1053 :                 } else if (ost->enc->channel_layouts) {
    2548          35 :                     count = 0;
    2549         294 :                     while (ost->enc->channel_layouts[count])
    2550         224 :                         count++;
    2551          35 :                     f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
    2552          35 :                     if (!f->channel_layouts)
    2553           0 :                         exit_program(1);
    2554          35 :                     memcpy(f->channel_layouts, ost->enc->channel_layouts,
    2555          35 :                            (count + 1) * sizeof(*f->channel_layouts));
    2556             :                 }
    2557        1065 :                 break;
    2558             :             }
    2559             :         }
    2560             :     }
    2561             : 
    2562             :     /* check filename in case of an image number is expected */
    2563        5412 :     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
    2564           0 :         if (!av_filename_number_test(oc->filename)) {
    2565           0 :             print_error(oc->filename, AVERROR(EINVAL));
    2566           0 :             exit_program(1);
    2567             :         }
    2568             :     }
    2569             : 
    2570        5412 :     if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
    2571           0 :         av_log(NULL, AV_LOG_ERROR,
    2572             :                "No input streams but output needs an input stream\n");
    2573           0 :         exit_program(1);
    2574             :     }
    2575             : 
    2576        5412 :     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
    2577             :         /* test if it already exists to avoid losing precious files */
    2578        5367 :         assert_file_overwrite(filename);
    2579             : 
    2580             :         /* open the file */
    2581       10734 :         if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
    2582        5367 :                               &oc->interrupt_callback,
    2583             :                               &of->opts)) < 0) {
    2584           0 :             print_error(filename, err);
    2585           0 :             exit_program(1);
    2586             :         }
    2587          45 :     } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
    2588           0 :         assert_file_overwrite(filename);
    2589             : 
    2590        5412 :     if (o->mux_preload) {
    2591           0 :         av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
    2592             :     }
    2593        5412 :     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
    2594             : 
    2595             :     /* copy metadata */
    2596        5417 :     for (i = 0; i < o->nb_metadata_map; i++) {
    2597             :         char *p;
    2598           5 :         int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
    2599             : 
    2600           5 :         if (in_file_index >= nb_input_files) {
    2601           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
    2602           0 :             exit_program(1);
    2603             :         }
    2604           8 :         copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
    2605             :                       in_file_index >= 0 ?
    2606           3 :                       input_files[in_file_index]->ctx : NULL, o);
    2607             :     }
    2608             : 
    2609             :     /* copy chapters */
    2610        5412 :     if (o->chapters_input_file >= nb_input_files) {
    2611        5412 :         if (o->chapters_input_file == INT_MAX) {
    2612             :             /* copy chapters from the first input file that has them*/
    2613        5412 :             o->chapters_input_file = -1;
    2614       10861 :             for (i = 0; i < nb_input_files; i++)
    2615        5459 :                 if (input_files[i]->ctx->nb_chapters) {
    2616          10 :                     o->chapters_input_file = i;
    2617          10 :                     break;
    2618             :                 }
    2619             :         } else {
    2620           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
    2621             :                    o->chapters_input_file);
    2622           0 :             exit_program(1);
    2623             :         }
    2624             :     }
    2625        5412 :     if (o->chapters_input_file >= 0)
    2626          10 :         copy_chapters(input_files[o->chapters_input_file], of,
    2627          10 :                       !o->metadata_chapters_manual);
    2628             : 
    2629             :     /* copy global metadata by default */
    2630        5412 :     if (!o->metadata_global_manual && nb_input_files){
    2631        5386 :         av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
    2632             :                      AV_DICT_DONT_OVERWRITE);
    2633        5386 :         if(o->recording_time != INT64_MAX)
    2634         111 :             av_dict_set(&oc->metadata, "duration", NULL, 0);
    2635        5386 :         av_dict_set(&oc->metadata, "creation_time", NULL, 0);
    2636             :     }
    2637        5412 :     if (!o->metadata_streams_manual)
    2638       10960 :         for (i = of->ost_index; i < nb_output_streams; i++) {
    2639             :             InputStream *ist;
    2640        5549 :             if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
    2641          61 :                 continue;
    2642        5488 :             ist = input_streams[output_streams[i]->source_index];
    2643        5488 :             av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
    2644        5488 :             if (!output_streams[i]->stream_copy) {
    2645        5266 :                 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
    2646             :             }
    2647             :         }
    2648             : 
    2649             :     /* process manually set programs */
    2650        5412 :     for (i = 0; i < o->nb_program; i++) {
    2651           0 :         const char *p = o->program[i].u.str;
    2652           0 :         int progid = i+1;
    2653             :         AVProgram *program;
    2654             : 
    2655           0 :         while(*p) {
    2656           0 :             const char *p2 = av_get_token(&p, ":");
    2657           0 :             const char *to_dealloc = p2;
    2658             :             char *key;
    2659           0 :             if (!p2)
    2660           0 :                 break;
    2661             : 
    2662           0 :             if(*p) p++;
    2663             : 
    2664           0 :             key = av_get_token(&p2, "=");
    2665           0 :             if (!key || !*p2) {
    2666           0 :                 av_freep(&to_dealloc);
    2667           0 :                 av_freep(&key);
    2668           0 :                 break;
    2669             :             }
    2670           0 :             p2++;
    2671             : 
    2672           0 :             if (!strcmp(key, "program_num"))
    2673           0 :                 progid = strtol(p2, NULL, 0);
    2674           0 :             av_freep(&to_dealloc);
    2675           0 :             av_freep(&key);
    2676             :         }
    2677             : 
    2678           0 :         program = av_new_program(oc, progid);
    2679             : 
    2680           0 :         p = o->program[i].u.str;
    2681           0 :         while(*p) {
    2682           0 :             const char *p2 = av_get_token(&p, ":");
    2683           0 :             const char *to_dealloc = p2;
    2684             :             char *key;
    2685           0 :             if (!p2)
    2686           0 :                 break;
    2687           0 :             if(*p) p++;
    2688             : 
    2689           0 :             key = av_get_token(&p2, "=");
    2690           0 :             if (!key) {
    2691           0 :                 av_log(NULL, AV_LOG_FATAL,
    2692             :                        "No '=' character in program string %s.\n",
    2693             :                        p2);
    2694           0 :                 exit_program(1);
    2695             :             }
    2696           0 :             if (!*p2)
    2697           0 :                 exit_program(1);
    2698           0 :             p2++;
    2699             : 
    2700           0 :             if (!strcmp(key, "title")) {
    2701           0 :                 av_dict_set(&program->metadata, "title", p2, 0);
    2702           0 :             } else if (!strcmp(key, "program_num")) {
    2703           0 :             } else if (!strcmp(key, "st")) {
    2704           0 :                 int st_num = strtol(p2, NULL, 0);
    2705           0 :                 av_program_add_stream_index(oc, progid, st_num);
    2706             :             } else {
    2707           0 :                 av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
    2708           0 :                 exit_program(1);
    2709             :             }
    2710           0 :             av_freep(&to_dealloc);
    2711           0 :             av_freep(&key);
    2712             :         }
    2713             :     }
    2714             : 
    2715             :     /* process manually set metadata */
    2716        5582 :     for (i = 0; i < o->nb_metadata; i++) {
    2717             :         AVDictionary **m;
    2718             :         char type, *val;
    2719             :         const char *stream_spec;
    2720         170 :         int index = 0, j, ret = 0;
    2721             : 
    2722         170 :         val = strchr(o->metadata[i].u.str, '=');
    2723         170 :         if (!val) {
    2724           0 :             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
    2725           0 :                    o->metadata[i].u.str);
    2726           0 :             exit_program(1);
    2727             :         }
    2728         170 :         *val++ = 0;
    2729             : 
    2730         170 :         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
    2731         170 :         if (type == 's') {
    2732           7 :             for (j = 0; j < oc->nb_streams; j++) {
    2733           5 :                 ost = output_streams[nb_output_streams - oc->nb_streams + j];
    2734           5 :                 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
    2735           2 :                     if (!strcmp(o->metadata[i].u.str, "rotate")) {
    2736             :                         char *tail;
    2737           1 :                         double theta = av_strtod(val, &tail);
    2738           1 :                         if (!*tail) {
    2739           1 :                             ost->rotate_overridden = 1;
    2740           1 :                             ost->rotate_override_value = theta;
    2741             :                         }
    2742             :                     } else {
    2743           1 :                         av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
    2744             :                     }
    2745           3 :                 } else if (ret < 0)
    2746           0 :                     exit_program(1);
    2747             :             }
    2748             :         }
    2749             :         else {
    2750         168 :             switch (type) {
    2751         168 :             case 'g':
    2752         168 :                 m = &oc->metadata;
    2753         168 :                 break;
    2754           0 :             case 'c':
    2755           0 :                 if (index < 0 || index >= oc->nb_chapters) {
    2756           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
    2757           0 :                     exit_program(1);
    2758             :                 }
    2759           0 :                 m = &oc->chapters[index]->metadata;
    2760           0 :                 break;
    2761           0 :             case 'p':
    2762           0 :                 if (index < 0 || index >= oc->nb_programs) {
    2763           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
    2764           0 :                     exit_program(1);
    2765             :                 }
    2766           0 :                 m = &oc->programs[index]->metadata;
    2767           0 :                 break;
    2768           0 :             default:
    2769           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
    2770           0 :                 exit_program(1);
    2771             :             }
    2772         168 :             av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
    2773             :         }
    2774             :     }
    2775             : 
    2776        5412 :     return 0;
    2777             : }
    2778             : 
    2779           0 : static int opt_target(void *optctx, const char *opt, const char *arg)
    2780             : {
    2781           0 :     OptionsContext *o = optctx;
    2782           0 :     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
    2783             :     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
    2784             : 
    2785           0 :     if (!strncmp(arg, "pal-", 4)) {
    2786           0 :         norm = PAL;
    2787           0 :         arg += 4;
    2788           0 :     } else if (!strncmp(arg, "ntsc-", 5)) {
    2789           0 :         norm = NTSC;
    2790           0 :         arg += 5;
    2791           0 :     } else if (!strncmp(arg, "film-", 5)) {
    2792           0 :         norm = FILM;
    2793           0 :         arg += 5;
    2794             :     } else {
    2795             :         /* Try to determine PAL/NTSC by peeking in the input files */
    2796           0 :         if (nb_input_files) {
    2797             :             int i, j, fr;
    2798           0 :             for (j = 0; j < nb_input_files; j++) {
    2799           0 :                 for (i = 0; i < input_files[j]->nb_streams; i++) {
    2800           0 :                     AVStream *st = input_files[j]->ctx->streams[i];
    2801           0 :                     if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
    2802           0 :                         continue;
    2803           0 :                     fr = st->time_base.den * 1000 / st->time_base.num;
    2804           0 :                     if (fr == 25000) {
    2805           0 :                         norm = PAL;
    2806           0 :                         break;
    2807           0 :                     } else if ((fr == 29970) || (fr == 23976)) {
    2808           0 :                         norm = NTSC;
    2809           0 :                         break;
    2810             :                     }
    2811             :                 }
    2812           0 :                 if (norm != UNKNOWN)
    2813           0 :                     break;
    2814             :             }
    2815             :         }
    2816           0 :         if (norm != UNKNOWN)
    2817           0 :             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
    2818             :     }
    2819             : 
    2820           0 :     if (norm == UNKNOWN) {
    2821           0 :         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
    2822           0 :         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
    2823           0 :         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
    2824           0 :         exit_program(1);
    2825             :     }
    2826             : 
    2827           0 :     if (!strcmp(arg, "vcd")) {
    2828           0 :         opt_video_codec(o, "c:v", "mpeg1video");
    2829           0 :         opt_audio_codec(o, "c:a", "mp2");
    2830           0 :         parse_option(o, "f", "vcd", options);
    2831             : 
    2832           0 :         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
    2833           0 :         parse_option(o, "r", frame_rates[norm], options);
    2834           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2835             : 
    2836           0 :         opt_default(NULL, "b:v", "1150000");
    2837           0 :         opt_default(NULL, "maxrate:v", "1150000");
    2838           0 :         opt_default(NULL, "minrate:v", "1150000");
    2839           0 :         opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
    2840             : 
    2841           0 :         opt_default(NULL, "b:a", "224000");
    2842           0 :         parse_option(o, "ar", "44100", options);
    2843           0 :         parse_option(o, "ac", "2", options);
    2844             : 
    2845           0 :         opt_default(NULL, "packetsize", "2324");
    2846           0 :         opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
    2847             : 
    2848             :         /* We have to offset the PTS, so that it is consistent with the SCR.
    2849             :            SCR starts at 36000, but the first two packs contain only padding
    2850             :            and the first pack from the other stream, respectively, may also have
    2851             :            been written before.
    2852             :            So the real data starts at SCR 36000+3*1200. */
    2853           0 :         o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
    2854           0 :     } else if (!strcmp(arg, "svcd")) {
    2855             : 
    2856           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2857           0 :         opt_audio_codec(o, "c:a", "mp2");
    2858           0 :         parse_option(o, "f", "svcd", options);
    2859             : 
    2860           0 :         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
    2861           0 :         parse_option(o, "r", frame_rates[norm], options);
    2862           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2863           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2864             : 
    2865           0 :         opt_default(NULL, "b:v", "2040000");
    2866           0 :         opt_default(NULL, "maxrate:v", "2516000");
    2867           0 :         opt_default(NULL, "minrate:v", "0"); // 1145000;
    2868           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2869           0 :         opt_default(NULL, "scan_offset", "1");
    2870             : 
    2871           0 :         opt_default(NULL, "b:a", "224000");
    2872           0 :         parse_option(o, "ar", "44100", options);
    2873             : 
    2874           0 :         opt_default(NULL, "packetsize", "2324");
    2875             : 
    2876           0 :     } else if (!strcmp(arg, "dvd")) {
    2877             : 
    2878           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2879           0 :         opt_audio_codec(o, "c:a", "ac3");
    2880           0 :         parse_option(o, "f", "dvd", options);
    2881             : 
    2882           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2883           0 :         parse_option(o, "r", frame_rates[norm], options);
    2884           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2885           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2886             : 
    2887           0 :         opt_default(NULL, "b:v", "6000000");
    2888           0 :         opt_default(NULL, "maxrate:v", "9000000");
    2889           0 :         opt_default(NULL, "minrate:v", "0"); // 1500000;
    2890           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2891             : 
    2892           0 :         opt_default(NULL, "packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
    2893           0 :         opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
    2894             : 
    2895           0 :         opt_default(NULL, "b:a", "448000");
    2896           0 :         parse_option(o, "ar", "48000", options);
    2897             : 
    2898           0 :     } else if (!strncmp(arg, "dv", 2)) {
    2899             : 
    2900           0 :         parse_option(o, "f", "dv", options);
    2901             : 
    2902           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2903           0 :         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
    2904           0 :                           norm == PAL ? "yuv420p" : "yuv411p", options);
    2905           0 :         parse_option(o, "r", frame_rates[norm], options);
    2906             : 
    2907           0 :         parse_option(o, "ar", "48000", options);
    2908           0 :         parse_option(o, "ac", "2", options);
    2909             : 
    2910             :     } else {
    2911           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
    2912           0 :         return AVERROR(EINVAL);
    2913             :     }
    2914             : 
    2915           0 :     av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
    2916           0 :     av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
    2917             : 
    2918           0 :     return 0;
    2919             : }
    2920             : 
    2921           0 : static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
    2922             : {
    2923           0 :     av_free (vstats_filename);
    2924           0 :     vstats_filename = av_strdup (arg);
    2925           0 :     return 0;
    2926             : }
    2927             : 
    2928           0 : static int opt_vstats(void *optctx, const char *opt, const char *arg)
    2929             : {
    2930             :     char filename[40];
    2931           0 :     time_t today2 = time(NULL);
    2932           0 :     struct tm *today = localtime(&today2);
    2933             : 
    2934           0 :     if (!today) { // maybe tomorrow
    2935           0 :         av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
    2936           0 :         exit_program(1);
    2937             :     }
    2938             : 
    2939           0 :     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
    2940             :              today->tm_sec);
    2941           0 :     return opt_vstats_file(NULL, opt, filename);
    2942             : }
    2943             : 
    2944           0 : static int opt_video_frames(void *optctx, const char *opt, const char *arg)
    2945             : {
    2946           0 :     OptionsContext *o = optctx;
    2947           0 :     return parse_option(o, "frames:v", arg, options);
    2948             : }
    2949             : 
    2950           0 : static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
    2951             : {
    2952           0 :     OptionsContext *o = optctx;
    2953           0 :     return parse_option(o, "frames:a", arg, options);
    2954             : }
    2955             : 
    2956           0 : static int opt_data_frames(void *optctx, const char *opt, const char *arg)
    2957             : {
    2958           0 :     OptionsContext *o = optctx;
    2959           0 :     return parse_option(o, "frames:d", arg, options);
    2960             : }
    2961             : 
    2962           2 : static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
    2963             : {
    2964             :     int ret;
    2965           2 :     AVDictionary *cbak = codec_opts;
    2966           2 :     AVDictionary *fbak = format_opts;
    2967           2 :     codec_opts = NULL;
    2968           2 :     format_opts = NULL;
    2969             : 
    2970           2 :     ret = opt_default(NULL, opt, arg);
    2971             : 
    2972           2 :     av_dict_copy(&o->g->codec_opts , codec_opts, 0);
    2973           2 :     av_dict_copy(&o->g->format_opts, format_opts, 0);
    2974           2 :     av_dict_free(&codec_opts);
    2975           2 :     av_dict_free(&format_opts);
    2976           2 :     codec_opts = cbak;
    2977           2 :     format_opts = fbak;
    2978             : 
    2979           2 :     return ret;
    2980             : }
    2981             : 
    2982           0 : static int opt_preset(void *optctx, const char *opt, const char *arg)
    2983             : {
    2984           0 :     OptionsContext *o = optctx;
    2985           0 :     FILE *f=NULL;
    2986             :     char filename[1000], line[1000], tmp_line[1000];
    2987           0 :     const char *codec_name = NULL;
    2988             : 
    2989           0 :     tmp_line[0] = *opt;
    2990           0 :     tmp_line[1] = 0;
    2991           0 :     MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
    2992             : 
    2993           0 :     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
    2994           0 :         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
    2995           0 :             av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
    2996             :         }else
    2997           0 :             av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
    2998           0 :         exit_program(1);
    2999             :     }
    3000             : 
    3001           0 :     while (fgets(line, sizeof(line), f)) {
    3002           0 :         char *key = tmp_line, *value, *endptr;
    3003             : 
    3004           0 :         if (strcspn(line, "#\n\r") == 0)
    3005           0 :             continue;
    3006           0 :         av_strlcpy(tmp_line, line, sizeof(tmp_line));
    3007           0 :         if (!av_strtok(key,   "=",    &value) ||
    3008           0 :             !av_strtok(value, "\r\n", &endptr)) {
    3009           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
    3010           0 :             exit_program(1);
    3011             :         }
    3012           0 :         av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
    3013             : 
    3014           0 :         if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
    3015           0 :         else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
    3016           0 :         else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
    3017           0 :         else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
    3018           0 :         else if (opt_default_new(o, key, value) < 0) {
    3019           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
    3020             :                    filename, line, key, value);
    3021           0 :             exit_program(1);
    3022             :         }
    3023             :     }
    3024             : 
    3025           0 :     fclose(f);
    3026             : 
    3027           0 :     return 0;
    3028             : }
    3029             : 
    3030           3 : static int opt_old2new(void *optctx, const char *opt, const char *arg)
    3031             : {
    3032           3 :     OptionsContext *o = optctx;
    3033           3 :     char *s = av_asprintf("%s:%c", opt + 1, *opt);
    3034           3 :     int ret = parse_option(o, s, arg, options);
    3035           3 :     av_free(s);
    3036           3 :     return ret;
    3037             : }
    3038             : 
    3039         164 : static int opt_bitrate(void *optctx, const char *opt, const char *arg)
    3040             : {
    3041         164 :     OptionsContext *o = optctx;
    3042             : 
    3043         164 :     if(!strcmp(opt, "ab")){
    3044          11 :         av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
    3045          11 :         return 0;
    3046         153 :     } else if(!strcmp(opt, "b")){
    3047          39 :         av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
    3048          39 :         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
    3049          39 :         return 0;
    3050             :     }
    3051         114 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    3052         114 :     return 0;
    3053             : }
    3054             : 
    3055         247 : static int opt_qscale(void *optctx, const char *opt, const char *arg)
    3056             : {
    3057         247 :     OptionsContext *o = optctx;
    3058             :     char *s;
    3059             :     int ret;
    3060         247 :     if(!strcmp(opt, "qscale")){
    3061         208 :         av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
    3062         208 :         return parse_option(o, "q:v", arg, options);
    3063             :     }
    3064          39 :     s = av_asprintf("q%s", opt + 6);
    3065          39 :     ret = parse_option(o, s, arg, options);
    3066          39 :     av_free(s);
    3067          39 :     return ret;
    3068             : }
    3069             : 
    3070          46 : static int opt_profile(void *optctx, const char *opt, const char *arg)
    3071             : {
    3072          46 :     OptionsContext *o = optctx;
    3073          46 :     if(!strcmp(opt, "profile")){
    3074           4 :         av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
    3075           4 :         av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
    3076           4 :         return 0;
    3077             :     }
    3078          42 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    3079          42 :     return 0;
    3080             : }
    3081             : 
    3082        1884 : static int opt_video_filters(void *optctx, const char *opt, const char *arg)
    3083             : {
    3084        1884 :     OptionsContext *o = optctx;
    3085        1884 :     return parse_option(o, "filter:v", arg, options);
    3086             : }
    3087             : 
    3088         377 : static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
    3089             : {
    3090         377 :     OptionsContext *o = optctx;
    3091         377 :     return parse_option(o, "filter:a", arg, options);
    3092             : }
    3093             : 
    3094         774 : static int opt_vsync(void *optctx, const char *opt, const char *arg)
    3095             : {
    3096         774 :     if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
    3097         770 :     else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
    3098         769 :     else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
    3099         768 :     else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
    3100             : 
    3101         774 :     if (video_sync_method == VSYNC_AUTO)
    3102         446 :         video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
    3103         774 :     return 0;
    3104             : }
    3105             : 
    3106          15 : static int opt_timecode(void *optctx, const char *opt, const char *arg)
    3107             : {
    3108          15 :     OptionsContext *o = optctx;
    3109          15 :     char *tcr = av_asprintf("timecode=%s", arg);
    3110          15 :     int ret = parse_option(o, "metadata:g", tcr, options);
    3111          15 :     if (ret >= 0)
    3112          15 :         ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
    3113          15 :     av_free(tcr);
    3114          15 :     return ret;
    3115             : }
    3116             : 
    3117           2 : static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
    3118             : {
    3119           2 :     OptionsContext *o = optctx;
    3120             :     char layout_str[32];
    3121             :     char *stream_str;
    3122             :     char *ac_str;
    3123             :     int ret, channels, ac_str_size;
    3124             :     uint64_t layout;
    3125             : 
    3126           2 :     layout = av_get_channel_layout(arg);
    3127           2 :     if (!layout) {
    3128           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
    3129           0 :         return AVERROR(EINVAL);
    3130             :     }
    3131           2 :     snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
    3132           2 :     ret = opt_default_new(o, opt, layout_str);
    3133           2 :     if (ret < 0)
    3134           0 :         return ret;
    3135             : 
    3136             :     /* set 'ac' option based on channel layout */
    3137           2 :     channels = av_get_channel_layout_nb_channels(layout);
    3138           2 :     snprintf(layout_str, sizeof(layout_str), "%d", channels);
    3139           2 :     stream_str = strchr(opt, ':');
    3140           2 :     ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
    3141           2 :     ac_str = av_mallocz(ac_str_size);
    3142           2 :     if (!ac_str)
    3143           0 :         return AVERROR(ENOMEM);
    3144           2 :     av_strlcpy(ac_str, "ac", 3);
    3145           2 :     if (stream_str)
    3146           0 :         av_strlcat(ac_str, stream_str, ac_str_size);
    3147           2 :     ret = parse_option(o, ac_str, layout_str, options);
    3148           2 :     av_free(ac_str);
    3149             : 
    3150           2 :     return ret;
    3151             : }
    3152             : 
    3153           0 : static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
    3154             : {
    3155           0 :     OptionsContext *o = optctx;
    3156           0 :     return parse_option(o, "q:a", arg, options);
    3157             : }
    3158             : 
    3159          37 : static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
    3160             : {
    3161          37 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3162          37 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3163           0 :         return AVERROR(ENOMEM);
    3164          37 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3165          37 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
    3166          37 :     if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
    3167           0 :         return AVERROR(ENOMEM);
    3168             : 
    3169          37 :     input_stream_potentially_available = 1;
    3170             : 
    3171          37 :     return 0;
    3172             : }
    3173             : 
    3174          21 : static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
    3175             : {
    3176          21 :     uint8_t *graph_desc = read_file(arg);
    3177          21 :     if (!graph_desc)
    3178           0 :         return AVERROR(EINVAL);
    3179             : 
    3180          21 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3181          21 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3182           0 :         return AVERROR(ENOMEM);
    3183          21 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3184          21 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
    3185             : 
    3186          21 :     input_stream_potentially_available = 1;
    3187             : 
    3188          21 :     return 0;
    3189             : }
    3190             : 
    3191           0 : void show_help_default(const char *opt, const char *arg)
    3192             : {
    3193             :     /* per-file options have at least one of those set */
    3194           0 :     const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
    3195           0 :     int show_advanced = 0, show_avoptions = 0;
    3196             : 
    3197           0 :     if (opt && *opt) {
    3198           0 :         if (!strcmp(opt, "long"))
    3199           0 :             show_advanced = 1;
    3200           0 :         else if (!strcmp(opt, "full"))
    3201           0 :             show_advanced = show_avoptions = 1;
    3202             :         else
    3203           0 :             av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
    3204             :     }
    3205             : 
    3206           0 :     show_usage();
    3207             : 
    3208           0 :     printf("Getting help:\n"
    3209             :            "    -h      -- print basic options\n"
    3210             :            "    -h long -- print more options\n"
    3211             :            "    -h full -- print all options (including all format and codec specific options, very long)\n"
    3212             :            "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
    3213             :            "    See man %s for detailed description of the options.\n"
    3214             :            "\n", program_name);
    3215             : 
    3216           0 :     show_help_options(options, "Print help / information / capabilities:",
    3217             :                       OPT_EXIT, 0, 0);
    3218             : 
    3219           0 :     show_help_options(options, "Global options (affect whole program "
    3220             :                       "instead of just one file:",
    3221             :                       0, per_file | OPT_EXIT | OPT_EXPERT, 0);
    3222           0 :     if (show_advanced)
    3223           0 :         show_help_options(options, "Advanced global options:", OPT_EXPERT,
    3224             :                           per_file | OPT_EXIT, 0);
    3225             : 
    3226           0 :     show_help_options(options, "Per-file main options:", 0,
    3227             :                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
    3228             :                       OPT_EXIT, per_file);
    3229           0 :     if (show_advanced)
    3230           0 :         show_help_options(options, "Advanced per-file options:",
    3231             :                           OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
    3232             : 
    3233           0 :     show_help_options(options, "Video options:",
    3234             :                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
    3235           0 :     if (show_advanced)
    3236           0 :         show_help_options(options, "Advanced Video options:",
    3237             :                           OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
    3238             : 
    3239           0 :     show_help_options(options, "Audio options:",
    3240             :                       OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
    3241           0 :     if (show_advanced)
    3242           0 :         show_help_options(options, "Advanced Audio options:",
    3243             :                           OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
    3244           0 :     show_help_options(options, "Subtitle options:",
    3245             :                       OPT_SUBTITLE, 0, 0);
    3246           0 :     printf("\n");
    3247             : 
    3248           0 :     if (show_avoptions) {
    3249           0 :         int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
    3250           0 :         show_help_children(avcodec_get_class(), flags);
    3251           0 :         show_help_children(avformat_get_class(), flags);
    3252             : #if CONFIG_SWSCALE
    3253           0 :         show_help_children(sws_get_class(), flags);
    3254             : #endif
    3255           0 :         show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
    3256           0 :         show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
    3257             :     }
    3258           0 : }
    3259             : 
    3260           0 : void show_usage(void)
    3261             : {
    3262           0 :     av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
    3263           0 :     av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
    3264           0 :     av_log(NULL, AV_LOG_INFO, "\n");
    3265           0 : }
    3266             : 
    3267             : enum OptGroup {
    3268             :     GROUP_OUTFILE,
    3269             :     GROUP_INFILE,
    3270             : };
    3271             : 
    3272             : static const OptionGroupDef groups[] = {
    3273             :     [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
    3274             :     [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
    3275             : };
    3276             : 
    3277       10822 : static int open_files(OptionGroupList *l, const char *inout,
    3278             :                       int (*open_file)(OptionsContext*, const char*))
    3279             : {
    3280             :     int i, ret;
    3281             : 
    3282       43384 :     for (i = 0; i < l->nb_groups; i++) {
    3283       10870 :         OptionGroup *g = &l->groups[i];
    3284             :         OptionsContext o;
    3285             : 
    3286       10870 :         init_options(&o);
    3287       10870 :         o.g = g;
    3288             : 
    3289       10870 :         ret = parse_optgroup(&o, g);
    3290       10870 :         if (ret < 0) {
    3291           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
    3292             :                    "%s.\n", inout, g->arg);
    3293           0 :             return ret;
    3294             :         }
    3295             : 
    3296       10870 :         av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
    3297       10870 :         ret = open_file(&o, g->arg);
    3298       10870 :         uninit_options(&o);
    3299       10870 :         if (ret < 0) {
    3300           0 :             av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
    3301             :                    inout, g->arg);
    3302           0 :             return ret;
    3303             :         }
    3304       10870 :         av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
    3305             :     }
    3306             : 
    3307       10822 :     return 0;
    3308             : }
    3309             : 
    3310        5412 : int ffmpeg_parse_options(int argc, char **argv)
    3311             : {
    3312             :     OptionParseContext octx;
    3313             :     uint8_t error[128];
    3314             :     int ret;
    3315             : 
    3316        5412 :     memset(&octx, 0, sizeof(octx));
    3317             : 
    3318             :     /* split the commandline into an internal representation */
    3319        5412 :     ret = split_commandline(&octx, argc, argv, options, groups,
    3320             :                             FF_ARRAY_ELEMS(groups));
    3321        5412 :     if (ret < 0) {
    3322           0 :         av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
    3323           0 :         goto fail;
    3324             :     }
    3325             : 
    3326             :     /* apply global options */
    3327        5412 :     ret = parse_optgroup(NULL, &octx.global_opts);
    3328        5411 :     if (ret < 0) {
    3329           0 :         av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
    3330           0 :         goto fail;
    3331             :     }
    3332             : 
    3333             :     /* configure terminal and setup signal handlers */
    3334        5411 :     term_init();
    3335             : 
    3336             :     /* open input files */
    3337        5411 :     ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
    3338        5411 :     if (ret < 0) {
    3339           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
    3340           0 :         goto fail;
    3341             :     }
    3342             : 
    3343             :     /* create the complex filtergraphs */
    3344        5411 :     ret = init_complex_filters();
    3345        5411 :     if (ret < 0) {
    3346           0 :         av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
    3347           0 :         goto fail;
    3348             :     }
    3349             : 
    3350             :     /* open output files */
    3351        5411 :     ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
    3352        5411 :     if (ret < 0) {
    3353           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
    3354           0 :         goto fail;
    3355             :     }
    3356             : 
    3357        5411 :     check_filter_outputs();
    3358             : 
    3359        5411 : fail:
    3360        5411 :     uninit_parse_context(&octx);
    3361        5411 :     if (ret < 0) {
    3362           0 :         av_strerror(ret, error, sizeof(error));
    3363           0 :         av_log(NULL, AV_LOG_FATAL, "%s\n", error);
    3364             :     }
    3365        5411 :     return ret;
    3366             : }
    3367             : 
    3368           0 : static int opt_progress(void *optctx, const char *opt, const char *arg)
    3369             : {
    3370           0 :     AVIOContext *avio = NULL;
    3371             :     int ret;
    3372             : 
    3373           0 :     if (!strcmp(arg, "-"))
    3374           0 :         arg = "pipe:";
    3375           0 :     ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
    3376           0 :     if (ret < 0) {
    3377           0 :         av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
    3378           0 :                arg, av_err2str(ret));
    3379           0 :         return ret;
    3380             :     }
    3381           0 :     progress_avio = avio;
    3382           0 :     return 0;
    3383             : }
    3384             : 
    3385             : #define OFFSET(x) offsetof(OptionsContext, x)
    3386             : const OptionDef options[] = {
    3387             :     /* main options */
    3388             :     CMDUTILS_COMMON_OPTIONS
    3389             :     { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
    3390             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
    3391             :         "force format", "fmt" },
    3392             :     { "y",              OPT_BOOL,                                    {              &file_overwrite },
    3393             :         "overwrite output files" },
    3394             :     { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
    3395             :         "never overwrite output files" },
    3396             :     { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
    3397             :         "Ignore unknown stream types" },
    3398             :     { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
    3399             :         "Copy unknown stream types" },
    3400             :     { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
    3401             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3402             :         "codec name", "codec" },
    3403             :     { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
    3404             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3405             :         "codec name", "codec" },
    3406             :     { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
    3407             :                         OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
    3408             :         "preset name", "preset" },
    3409             :     { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3410             :                         OPT_OUTPUT,                                  { .func_arg = opt_map },
    3411             :         "set input stream mapping",
    3412             :         "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
    3413             :     { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
    3414             :         "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
    3415             :     { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
    3416             :                         OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
    3417             :         "set metadata information of outfile from infile",
    3418             :         "outfile[,metadata]:infile[,metadata]" },
    3419             :     { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
    3420             :                         OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
    3421             :         "set chapters mapping", "input_file_index" },
    3422             :     { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
    3423             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
    3424             :         "record or transcode \"duration\" seconds of audio/video",
    3425             :         "duration" },
    3426             :     { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
    3427             :         "record or transcode stop time", "time_stop" },
    3428             :     { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
    3429             :         "set the limit file size in bytes", "limit_size" },
    3430             :     { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
    3431             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
    3432             :         "set the start time offset", "time_off" },
    3433             :     { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
    3434             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time_eof) },
    3435             :         "set the start time offset relative to EOF", "time_off" },
    3436             :     { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
    3437             :                         OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
    3438             :         "enable/disable seeking by timestamp with -ss" },
    3439             :     { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
    3440             :                         OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
    3441             :         "enable/disable accurate seeking with -ss" },
    3442             :     { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
    3443             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
    3444             :         "set the input ts offset", "time_off" },
    3445             :     { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
    3446             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
    3447             :         "set the input ts scale", "scale" },
    3448             :     { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
    3449             :         "set the recording timestamp ('now' to set the current time)", "time" },
    3450             :     { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
    3451             :         "add metadata", "string=string" },
    3452             :     { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
    3453             :         "add program with specified streams", "title=string:st=number..." },
    3454             :     { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3455             :                         OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
    3456             :         "set the number of data frames to output", "number" },
    3457             :     { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
    3458             :         "add timings for benchmarking" },
    3459             :     { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
    3460             :       "add timings for each task" },
    3461             :     { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
    3462             :       "write program-readable progress information", "url" },
    3463             :     { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
    3464             :       "enable or disable interaction on standard input" },
    3465             :     { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
    3466             :         "set max runtime in seconds", "limit" },
    3467             :     { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
    3468             :         "dump each input packet" },
    3469             :     { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
    3470             :         "when dumping packets, also dump the payload" },
    3471             :     { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3472             :                         OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
    3473             :         "read input at native frame rate", "" },
    3474             :     { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
    3475             :         "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
    3476             :         "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
    3477             :     { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
    3478             :         "video sync method", "" },
    3479             :     { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
    3480             :         "frame drop threshold", "" },
    3481             :     { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
    3482             :         "audio sync method", "" },
    3483             :     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
    3484             :         "audio drift threshold", "threshold" },
    3485             :     { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
    3486             :         "copy timestamps" },
    3487             :     { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
    3488             :         "shift input timestamps to start at 0 when using copyts" },
    3489             :     { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
    3490             :         "copy input stream time base when stream copying", "mode" },
    3491             :     { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3492             :                         OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
    3493             :         "finish encoding within shortest input" },
    3494             :     { "bitexact",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3495             :                         OPT_OUTPUT | OPT_INPUT,                      { .off = OFFSET(bitexact) },
    3496             :         "bitexact mode" },
    3497             :     { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
    3498             :                         OPT_OUTPUT,                                  { .off = OFFSET(apad) },
    3499             :         "audio pad", "" },
    3500             :     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
    3501             :         "timestamp discontinuity delta threshold", "threshold" },
    3502             :     { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
    3503             :         "timestamp error delta threshold", "threshold" },
    3504             :     { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
    3505             :         "exit on error", "error" },
    3506             :     { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
    3507             :         "abort on the specified condition flags", "flags" },
    3508             :     { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
    3509             :                         OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
    3510             :         "copy initial non-keyframes" },
    3511             :     { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
    3512             :         "copy or discard frames before start time" },
    3513             :     { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
    3514             :         "set the number of frames to output", "number" },
    3515             :     { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
    3516             :                         OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
    3517             :         "force codec tag/fourcc", "fourcc/tag" },
    3518             :     { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
    3519             :                         OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
    3520             :         "use fixed quality scale (VBR)", "q" },
    3521             :     { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3522             :                         OPT_OUTPUT,                                  { .func_arg = opt_qscale },
    3523             :         "use fixed quality scale (VBR)", "q" },
    3524             :     { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
    3525             :         "set profile", "profile" },
    3526             :     { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
    3527             :         "set stream filtergraph", "filter_graph" },
    3528             :     { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
    3529             :         "number of non-complex filter threads" },
    3530             :     { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
    3531             :         "read stream filtergraph description from a file", "filename" },
    3532             :     { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
    3533             :         "reinit filtergraph on input parameter changes", "" },
    3534             :     { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3535             :         "create a complex filtergraph", "graph_description" },
    3536             :     { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
    3537             :         "number of threads for -filter_complex" },
    3538             :     { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3539             :         "create a complex filtergraph", "graph_description" },
    3540             :     { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
    3541             :         "read complex filtergraph description from a file", "filename" },
    3542             :     { "stats",          OPT_BOOL,                                    { &print_stats },
    3543             :         "print progress report during encoding", },
    3544             :     { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3545             :                         OPT_OUTPUT,                                  { .func_arg = opt_attach },
    3546             :         "add an attachment to the output file", "filename" },
    3547             :     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
    3548             :                          OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
    3549             :         "extract an attachment into a file", "filename" },
    3550             :     { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
    3551             :                         OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
    3552             :     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
    3553             :         "print timestamp debugging info" },
    3554             :     { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
    3555             :         "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
    3556             :     { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
    3557             :                         OPT_INPUT,                                   { .off = OFFSET(discard) },
    3558             :         "discard", "" },
    3559             :     { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
    3560             :                         OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
    3561             :         "disposition", "" },
    3562             :     { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
    3563             :                                                                      { .off = OFFSET(thread_queue_size) },
    3564             :         "set the maximum number of queued packets from the demuxer" },
    3565             :     { "find_stream_info", OPT_BOOL | OPT_PERFILE | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
    3566             :         "read and decode the streams to fill missing information with heuristics" },
    3567             : 
    3568             :     /* video options */
    3569             :     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
    3570             :         "set the number of video frames to output", "number" },
    3571             :     { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3572             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
    3573             :         "set frame rate (Hz value, fraction or abbreviation)", "rate" },
    3574             :     { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
    3575             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
    3576             :         "set frame size (WxH or abbreviation)", "size" },
    3577             :     { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3578             :                       OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
    3579             :         "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
    3580             :     { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3581             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
    3582             :         "set pixel format", "format" },
    3583             :     { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
    3584             :         "set the number of bits per raw sample", "number" },
    3585             :     { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
    3586             :         "deprecated use -g 1" },
    3587             :     { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
    3588             :         "disable video" },
    3589             :     { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3590             :                       OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
    3591             :         "rate control override for specific intervals", "override" },
    3592             :     { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
    3593             :                       OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
    3594             :         "force video codec ('copy' to copy stream)", "codec" },
    3595             :     { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3596             :         "Removed" },
    3597             :     { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3598             :         "Removed" },
    3599             :     { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
    3600             :         "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
    3601             :     { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
    3602             :         "select the pass number (1 to 3)", "n" },
    3603             :     { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
    3604             :                       OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
    3605             :         "select two pass log file name prefix", "prefix" },
    3606             :     { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
    3607             :         "this option is deprecated, use the yadif filter instead" },
    3608             :     { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
    3609             :         "calculate PSNR of compressed frames" },
    3610             :     { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
    3611             :         "dump video coding statistics to file" },
    3612             :     { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
    3613             :         "dump video coding statistics to file", "file" },
    3614             :     { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
    3615             :         "Version of the vstats format to use."},
    3616             :     { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
    3617             :         "set video filters", "filter_graph" },
    3618             :     { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3619             :                       OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
    3620             :         "specify intra matrix coeffs", "matrix" },
    3621             :     { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3622             :                       OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
    3623             :         "specify inter matrix coeffs", "matrix" },
    3624             :     { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3625             :                       OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
    3626             :         "specify intra matrix coeffs", "matrix" },
    3627             :     { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
    3628             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
    3629             :         "top=1/bottom=0/auto=-1 field first", "" },
    3630             :     { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
    3631             :                       OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
    3632             :         "force video tag/fourcc", "fourcc/tag" },
    3633             :     { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
    3634             :         "show QP histogram" },
    3635             :     { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
    3636             :                       OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
    3637             :         "force the selected framerate, disable the best supported framerate selection" },
    3638             :     { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3639             :                       OPT_OUTPUT,                                                { .func_arg = opt_streamid },
    3640             :         "set the value of an outfile streamid", "streamIndex:value" },
    3641             :     { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3642             :                           OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
    3643             :         "force key frames at specified timestamps", "timestamps" },
    3644             :     { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3645             :         "audio bitrate (please use -b:a)", "bitrate" },
    3646             :     { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3647             :         "video bitrate (please use -b:v)", "bitrate" },
    3648             :     { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3649             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
    3650             :         "use HW accelerated decoding", "hwaccel name" },
    3651             :     { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3652             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
    3653             :         "select a device for HW acceleration", "devicename" },
    3654             :     { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3655             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
    3656             :         "select output format used with HW accelerated decoding", "format" },
    3657             : #if CONFIG_VIDEOTOOLBOX
    3658             :     { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
    3659             : #endif
    3660             :     { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
    3661             :         "show available HW acceleration methods" },
    3662             :     { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
    3663             :                           OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
    3664             :         "automatically insert correct rotate filters" },
    3665             : 
    3666             :     /* audio options */
    3667             :     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
    3668             :         "set the number of audio frames to output", "number" },
    3669             :     { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
    3670             :         "set audio quality (codec-specific)", "quality", },
    3671             :     { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3672             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
    3673             :         "set audio sampling rate (in Hz)", "rate" },
    3674             :     { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3675             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
    3676             :         "set number of audio channels", "channels" },
    3677             :     { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
    3678             :         "disable audio" },
    3679             :     { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
    3680             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
    3681             :         "force audio codec ('copy' to copy stream)", "codec" },
    3682             :     { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3683             :                         OPT_OUTPUT,                                                { .func_arg = opt_old2new },
    3684             :         "force audio tag/fourcc", "fourcc/tag" },
    3685             :     { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
    3686             :         "change audio volume (256=normal)" , "volume" },
    3687             :     { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
    3688             :                         OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
    3689             :         "set sample format", "format" },
    3690             :     { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3691             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
    3692             :         "set channel layout", "layout" },
    3693             :     { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
    3694             :         "set audio filters", "filter_graph" },
    3695             :     { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
    3696             :       "set the maximum number of channels to try to guess the channel layout" },
    3697             : 
    3698             :     /* subtitle options */
    3699             :     { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
    3700             :         "disable subtitle" },
    3701             :     { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
    3702             :         "force subtitle codec ('copy' to copy stream)", "codec" },
    3703             :     { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
    3704             :         , "force subtitle tag/fourcc", "fourcc/tag" },
    3705             :     { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
    3706             :         "fix subtitles duration" },
    3707             :     { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
    3708             :         "set canvas size (WxH or abbreviation)", "size" },
    3709             : 
    3710             :     /* grab options */
    3711             :     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
    3712             :         "deprecated, use -channel", "channel" },
    3713             :     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
    3714             :         "deprecated, use -standard", "standard" },
    3715             :     { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
    3716             : 
    3717             :     /* muxer options */
    3718             :     { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
    3719             :         "set the maximum demux-decode delay", "seconds" },
    3720             :     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
    3721             :         "set the initial demux-decode delay", "seconds" },
    3722             :     { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
    3723             :         "override the options from ffserver", "" },
    3724             :     { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
    3725             :         "specify a file in which to print sdp information", "file" },
    3726             : 
    3727             :     { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
    3728             :         "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
    3729             :     { "enc_time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(enc_time_bases) },
    3730             :         "set the desired time base for the encoder (1:24, 1:48000 or 0.04166, 2.0833e-5). "
    3731             :         "two special values are defined - "
    3732             :         "0 = use frame rate (video) or sample rate (audio),"
    3733             :         "-1 = match source time base", "ratio" },
    3734             : 
    3735             :     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
    3736             :         "A comma-separated list of bitstream filters", "bitstream_filters" },
    3737             :     { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3738             :         "deprecated", "audio bitstream_filters" },
    3739             :     { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3740             :         "deprecated", "video bitstream_filters" },
    3741             : 
    3742             :     { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3743             :         "set the audio options to the indicated preset", "preset" },
    3744             :     { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3745             :         "set the video options to the indicated preset", "preset" },
    3746             :     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
    3747             :         "set the subtitle options to the indicated preset", "preset" },
    3748             :     { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
    3749             :         "set options from indicated preset file", "filename" },
    3750             : 
    3751             :     { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
    3752             :         "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
    3753             : 
    3754             :     /* data codec support */
    3755             :     { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
    3756             :         "force data codec ('copy' to copy stream)", "codec" },
    3757             :     { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
    3758             :         "disable data" },
    3759             : 
    3760             : #if CONFIG_VAAPI
    3761             :     { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
    3762             :         "set VAAPI hardware device (DRM path or X11 display name)", "device" },
    3763             : #endif
    3764             : 
    3765             : #if CONFIG_QSV
    3766             :     { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
    3767             :         "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
    3768             : #endif
    3769             : 
    3770             :     { "init_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_init_hw_device },
    3771             :         "initialise hardware device", "args" },
    3772             :     { "filter_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_hw_device },
    3773             :         "set hardware device used when filtering", "device" },
    3774             : 
    3775             :     { NULL, },
    3776             : };

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