LCOV - code coverage report
Current view: top level - fftools - ffmpeg_opt.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1116 1923 58.0 %
Date: 2018-05-20 11:54:08 Functions: 44 71 62.0 %

          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 input_stream_potentially_available = 0;
     121             : static int ignore_unknown_streams = 0;
     122             : static int copy_unknown_streams = 0;
     123             : static int find_stream_info = 1;
     124             : 
     125       11268 : static void uninit_options(OptionsContext *o)
     126             : {
     127       11268 :     const OptionDef *po = options;
     128             :     int i;
     129             : 
     130             :     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
     131     2005704 :     while (po->name) {
     132     1983168 :         void *dst = (uint8_t*)o + po->u.off;
     133             : 
     134     1983168 :         if (po->flags & OPT_SPEC) {
     135      518328 :             SpecifierOpt **so = dst;
     136      518328 :             int i, *count = (int*)(so + 1);
     137      540709 :             for (i = 0; i < *count; i++) {
     138       22381 :                 av_freep(&(*so)[i].specifier);
     139       22381 :                 if (po->flags & OPT_STRING)
     140       18100 :                     av_freep(&(*so)[i].u.str);
     141             :             }
     142      518328 :             av_freep(so);
     143      518328 :             *count = 0;
     144     1464840 :         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
     145       11268 :             av_freep(dst);
     146     1983168 :         po++;
     147             :     }
     148             : 
     149       11325 :     for (i = 0; i < o->nb_stream_maps; i++)
     150          57 :         av_freep(&o->stream_maps[i].linklabel);
     151       11268 :     av_freep(&o->stream_maps);
     152       11268 :     av_freep(&o->audio_channel_maps);
     153       11268 :     av_freep(&o->streamid_map);
     154       11268 :     av_freep(&o->attachments);
     155       11268 : }
     156             : 
     157       11268 : static void init_options(OptionsContext *o)
     158             : {
     159       11268 :     memset(o, 0, sizeof(*o));
     160             : 
     161       11268 :     o->stop_time = INT64_MAX;
     162       11268 :     o->mux_max_delay  = 0.7;
     163       11268 :     o->start_time     = AV_NOPTS_VALUE;
     164       11268 :     o->start_time_eof = AV_NOPTS_VALUE;
     165       11268 :     o->recording_time = INT64_MAX;
     166       11268 :     o->limit_filesize = UINT64_MAX;
     167       11268 :     o->chapters_input_file = INT_MAX;
     168       11268 :     o->accurate_seek  = 1;
     169       11268 : }
     170             : 
     171           0 : static int show_hwaccels(void *optctx, const char *opt, const char *arg)
     172             : {
     173           0 :     enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
     174             :     int i;
     175             : 
     176           0 :     printf("Hardware acceleration methods:\n");
     177           0 :     while ((type = av_hwdevice_iterate_types(type)) !=
     178             :            AV_HWDEVICE_TYPE_NONE)
     179           0 :         printf("%s\n", av_hwdevice_get_type_name(type));
     180           0 :     for (i = 0; hwaccels[i].name; i++)
     181           0 :         printf("%s\n", hwaccels[i].name);
     182           0 :     printf("\n");
     183           0 :     return 0;
     184             : }
     185             : 
     186             : /* return a copy of the input with the stream specifiers removed from the keys */
     187       11268 : static AVDictionary *strip_specifiers(AVDictionary *dict)
     188             : {
     189       11268 :     AVDictionaryEntry *e = NULL;
     190       11268 :     AVDictionary    *ret = NULL;
     191             : 
     192       53438 :     while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
     193       30902 :         char *p = strchr(e->key, ':');
     194             : 
     195       30902 :         if (p)
     196         195 :             *p = 0;
     197       30902 :         av_dict_set(&ret, e->key, e->value, 0);
     198       30902 :         if (p)
     199         195 :             *p = ':';
     200             :     }
     201       11268 :     return ret;
     202             : }
     203             : 
     204           0 : static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     205             : {
     206             :     static const AVOption opts[] = {
     207             :         { "abort_on"        , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
     208             :         { "empty_output"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT     },    .unit = "flags" },
     209             :         { NULL },
     210             :     };
     211             :     static const AVClass class = {
     212             :         .class_name = "",
     213             :         .item_name  = av_default_item_name,
     214             :         .option     = opts,
     215             :         .version    = LIBAVUTIL_VERSION_INT,
     216             :     };
     217           0 :     const AVClass *pclass = &class;
     218             : 
     219           0 :     return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
     220             : }
     221             : 
     222           0 : static int opt_sameq(void *optctx, const char *opt, const char *arg)
     223             : {
     224           0 :     av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
     225             :            "If you are looking for an option to preserve the quality (which is not "
     226             :            "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
     227             :            opt, opt);
     228           0 :     return AVERROR(EINVAL);
     229             : }
     230             : 
     231           0 : static int opt_video_channel(void *optctx, const char *opt, const char *arg)
     232             : {
     233           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
     234           0 :     return opt_default(optctx, "channel", arg);
     235             : }
     236             : 
     237           0 : static int opt_video_standard(void *optctx, const char *opt, const char *arg)
     238             : {
     239           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
     240           0 :     return opt_default(optctx, "standard", arg);
     241             : }
     242             : 
     243          24 : static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
     244             : {
     245          24 :     OptionsContext *o = optctx;
     246          24 :     return parse_option(o, "codec:a", arg, options);
     247             : }
     248             : 
     249        3949 : static int opt_video_codec(void *optctx, const char *opt, const char *arg)
     250             : {
     251        3949 :     OptionsContext *o = optctx;
     252        3949 :     return parse_option(o, "codec:v", arg, options);
     253             : }
     254             : 
     255           2 : static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
     256             : {
     257           2 :     OptionsContext *o = optctx;
     258           2 :     return parse_option(o, "codec:s", arg, options);
     259             : }
     260             : 
     261           0 : static int opt_data_codec(void *optctx, const char *opt, const char *arg)
     262             : {
     263           0 :     OptionsContext *o = optctx;
     264           0 :     return parse_option(o, "codec:d", arg, options);
     265             : }
     266             : 
     267          49 : static int opt_map(void *optctx, const char *opt, const char *arg)
     268             : {
     269          49 :     OptionsContext *o = optctx;
     270          49 :     StreamMap *m = NULL;
     271          49 :     int i, negative = 0, file_idx;
     272          49 :     int sync_file_idx = -1, sync_stream_idx = 0;
     273             :     char *p, *sync;
     274             :     char *map;
     275             :     char *allow_unused;
     276             : 
     277          49 :     if (*arg == '-') {
     278           0 :         negative = 1;
     279           0 :         arg++;
     280             :     }
     281          49 :     map = av_strdup(arg);
     282          49 :     if (!map)
     283           0 :         return AVERROR(ENOMEM);
     284             : 
     285             :     /* parse sync stream first, just pick first matching stream */
     286          49 :     if (sync = strchr(map, ',')) {
     287           0 :         *sync = 0;
     288           0 :         sync_file_idx = strtol(sync + 1, &sync, 0);
     289           0 :         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
     290           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
     291           0 :             exit_program(1);
     292             :         }
     293           0 :         if (*sync)
     294           0 :             sync++;
     295           0 :         for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
     296           0 :             if (check_stream_specifier(input_files[sync_file_idx]->ctx,
     297           0 :                                        input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
     298           0 :                 sync_stream_idx = i;
     299           0 :                 break;
     300             :             }
     301           0 :         if (i == input_files[sync_file_idx]->nb_streams) {
     302           0 :             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
     303             :                                        "match any streams.\n", arg);
     304           0 :             exit_program(1);
     305             :         }
     306             :     }
     307             : 
     308             : 
     309          49 :     if (map[0] == '[') {
     310             :         /* this mapping refers to lavfi output */
     311           3 :         const char *c = map + 1;
     312           3 :         GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     313           3 :         m = &o->stream_maps[o->nb_stream_maps - 1];
     314           3 :         m->linklabel = av_get_token(&c, "]");
     315           3 :         if (!m->linklabel) {
     316           0 :             av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
     317           0 :             exit_program(1);
     318             :         }
     319             :     } else {
     320          46 :         if (allow_unused = strchr(map, '?'))
     321           0 :             *allow_unused = 0;
     322          46 :         file_idx = strtol(map, &p, 0);
     323          46 :         if (file_idx >= nb_input_files || file_idx < 0) {
     324           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
     325           0 :             exit_program(1);
     326             :         }
     327          46 :         if (negative)
     328             :             /* disable some already defined maps */
     329           0 :             for (i = 0; i < o->nb_stream_maps; i++) {
     330           0 :                 m = &o->stream_maps[i];
     331           0 :                 if (file_idx == m->file_index &&
     332           0 :                     check_stream_specifier(input_files[m->file_index]->ctx,
     333           0 :                                            input_files[m->file_index]->ctx->streams[m->stream_index],
     334           0 :                                            *p == ':' ? p + 1 : p) > 0)
     335           0 :                     m->disabled = 1;
     336             :             }
     337             :         else
     338         134 :             for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
     339         138 :                 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
     340         138 :                             *p == ':' ? p + 1 : p) <= 0)
     341          34 :                     continue;
     342          54 :                 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     343          54 :                 m = &o->stream_maps[o->nb_stream_maps - 1];
     344             : 
     345          54 :                 m->file_index   = file_idx;
     346          54 :                 m->stream_index = i;
     347             : 
     348          54 :                 if (sync_file_idx >= 0) {
     349           0 :                     m->sync_file_index   = sync_file_idx;
     350           0 :                     m->sync_stream_index = sync_stream_idx;
     351             :                 } else {
     352          54 :                     m->sync_file_index   = file_idx;
     353          54 :                     m->sync_stream_index = i;
     354             :                 }
     355             :             }
     356             :     }
     357             : 
     358          49 :     if (!m) {
     359           0 :         if (allow_unused) {
     360           0 :             av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
     361             :         } else {
     362           0 :             av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
     363             :                                        "To ignore this, add a trailing '?' to the map.\n", arg);
     364           0 :             exit_program(1);
     365             :         }
     366             :     }
     367             : 
     368          49 :     av_freep(&map);
     369          49 :     return 0;
     370             : }
     371             : 
     372           1 : static int opt_attach(void *optctx, const char *opt, const char *arg)
     373             : {
     374           1 :     OptionsContext *o = optctx;
     375           1 :     GROW_ARRAY(o->attachments, o->nb_attachments);
     376           1 :     o->attachments[o->nb_attachments - 1] = arg;
     377           1 :     return 0;
     378             : }
     379             : 
     380          10 : static int opt_map_channel(void *optctx, const char *opt, const char *arg)
     381             : {
     382          10 :     OptionsContext *o = optctx;
     383             :     int n;
     384             :     AVStream *st;
     385             :     AudioChannelMap *m;
     386             :     char *allow_unused;
     387             :     char *mapchan;
     388          10 :     mapchan = av_strdup(arg);
     389          10 :     if (!mapchan)
     390           0 :         return AVERROR(ENOMEM);
     391             : 
     392          10 :     GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
     393          10 :     m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
     394             : 
     395             :     /* muted channel syntax */
     396          10 :     n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
     397          10 :     if ((n == 1 || n == 3) && m->channel_idx == -1) {
     398           1 :         m->file_idx = m->stream_idx = -1;
     399           1 :         if (n == 1)
     400           1 :             m->ofile_idx = m->ostream_idx = -1;
     401           1 :         av_free(mapchan);
     402           1 :         return 0;
     403             :     }
     404             : 
     405             :     /* normal syntax */
     406           9 :     n = sscanf(arg, "%d.%d.%d:%d.%d",
     407             :                &m->file_idx,  &m->stream_idx, &m->channel_idx,
     408             :                &m->ofile_idx, &m->ostream_idx);
     409             : 
     410           9 :     if (n != 3 && n != 5) {
     411           0 :         av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
     412             :                "[file.stream.channel|-1][:syncfile:syncstream]\n");
     413           0 :         exit_program(1);
     414             :     }
     415             : 
     416           9 :     if (n != 5) // only file.stream.channel specified
     417           9 :         m->ofile_idx = m->ostream_idx = -1;
     418             : 
     419             :     /* check input */
     420           9 :     if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
     421           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
     422             :                m->file_idx);
     423           0 :         exit_program(1);
     424             :     }
     425          18 :     if (m->stream_idx < 0 ||
     426           9 :         m->stream_idx >= input_files[m->file_idx]->nb_streams) {
     427           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
     428             :                m->file_idx, m->stream_idx);
     429           0 :         exit_program(1);
     430             :     }
     431           9 :     st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
     432           9 :     if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
     433           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
     434             :                m->file_idx, m->stream_idx);
     435           0 :         exit_program(1);
     436             :     }
     437             :     /* allow trailing ? to map_channel */
     438           9 :     if (allow_unused = strchr(mapchan, '?'))
     439           2 :         *allow_unused = 0;
     440           9 :     if (m->channel_idx < 0 || m->channel_idx >= st->codecpar->channels) {
     441           1 :         if (allow_unused) {
     442           1 :             av_log(NULL, AV_LOG_VERBOSE, "mapchan: invalid audio channel #%d.%d.%d\n",
     443             :                     m->file_idx, m->stream_idx, m->channel_idx);
     444             :         } else {
     445           0 :             av_log(NULL, AV_LOG_FATAL,  "mapchan: invalid audio channel #%d.%d.%d\n"
     446             :                     "To ignore this, add a trailing '?' to the map_channel.\n",
     447             :                     m->file_idx, m->stream_idx, m->channel_idx);
     448           0 :             exit_program(1);
     449             :         }
     450             : 
     451             :     }
     452           9 :     av_free(mapchan);
     453           9 :     return 0;
     454             : }
     455             : 
     456           0 : static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
     457             : {
     458           0 :     av_free(sdp_filename);
     459           0 :     sdp_filename = av_strdup(arg);
     460           0 :     return 0;
     461             : }
     462             : 
     463             : #if CONFIG_VAAPI
     464             : static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
     465             : {
     466             :     HWDevice *dev;
     467             :     const char *prefix = "vaapi:";
     468             :     char *tmp;
     469             :     int err;
     470             :     tmp = av_asprintf("%s%s", prefix, arg);
     471             :     if (!tmp)
     472             :         return AVERROR(ENOMEM);
     473             :     err = hw_device_init_from_string(tmp, &dev);
     474             :     av_free(tmp);
     475             :     if (err < 0)
     476             :         return err;
     477             :     hw_device_ctx = av_buffer_ref(dev->device_ref);
     478             :     if (!hw_device_ctx)
     479             :         return AVERROR(ENOMEM);
     480             :     return 0;
     481             : }
     482             : #endif
     483             : 
     484           0 : static int opt_init_hw_device(void *optctx, const char *opt, const char *arg)
     485             : {
     486           0 :     if (!strcmp(arg, "list")) {
     487           0 :         enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
     488           0 :         printf("Supported hardware device types:\n");
     489           0 :         while ((type = av_hwdevice_iterate_types(type)) !=
     490             :                AV_HWDEVICE_TYPE_NONE)
     491           0 :             printf("%s\n", av_hwdevice_get_type_name(type));
     492           0 :         printf("\n");
     493           0 :         exit_program(0);
     494             :     } else {
     495           0 :         return hw_device_init_from_string(arg, NULL);
     496             :     }
     497             : }
     498             : 
     499           0 : static int opt_filter_hw_device(void *optctx, const char *opt, const char *arg)
     500             : {
     501           0 :     if (filter_hw_device) {
     502           0 :         av_log(NULL, AV_LOG_ERROR, "Only one filter device can be used.\n");
     503           0 :         return AVERROR(EINVAL);
     504             :     }
     505           0 :     filter_hw_device = hw_device_get_by_name(arg);
     506           0 :     if (!filter_hw_device) {
     507           0 :         av_log(NULL, AV_LOG_ERROR, "Invalid filter device %s.\n", arg);
     508           0 :         return AVERROR(EINVAL);
     509             :     }
     510           0 :     return 0;
     511             : }
     512             : 
     513             : /**
     514             :  * Parse a metadata specifier passed as 'arg' parameter.
     515             :  * @param arg  metadata string to parse
     516             :  * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
     517             :  * @param index for type c/p, chapter/program index is written here
     518             :  * @param stream_spec for type s, the stream specifier is written here
     519             :  */
     520         185 : static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
     521             : {
     522         185 :     if (*arg) {
     523          29 :         *type = *arg;
     524          29 :         switch (*arg) {
     525          17 :         case 'g':
     526          17 :             break;
     527          12 :         case 's':
     528          12 :             if (*(++arg) && *arg != ':') {
     529           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
     530           0 :                 exit_program(1);
     531             :             }
     532          12 :             *stream_spec = *arg == ':' ? arg + 1 : "";
     533          12 :             break;
     534           0 :         case 'c':
     535             :         case 'p':
     536           0 :             if (*(++arg) == ':')
     537           0 :                 *index = strtol(++arg, NULL, 0);
     538           0 :             break;
     539           0 :         default:
     540           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
     541           0 :             exit_program(1);
     542             :         }
     543             :     } else
     544         156 :         *type = 'g';
     545         185 : }
     546             : 
     547           5 : static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
     548             : {
     549           5 :     AVDictionary **meta_in = NULL;
     550           5 :     AVDictionary **meta_out = NULL;
     551           5 :     int i, ret = 0;
     552             :     char type_in, type_out;
     553           5 :     const char *istream_spec = NULL, *ostream_spec = NULL;
     554           5 :     int idx_in = 0, idx_out = 0;
     555             : 
     556           5 :     parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
     557           5 :     parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
     558             : 
     559           5 :     if (!ic) {
     560           2 :         if (type_out == 'g' || !*outspec)
     561           2 :             o->metadata_global_manual = 1;
     562           2 :         if (type_out == 's' || !*outspec)
     563           0 :             o->metadata_streams_manual = 1;
     564           2 :         if (type_out == 'c' || !*outspec)
     565           0 :             o->metadata_chapters_manual = 1;
     566           2 :         return 0;
     567             :     }
     568             : 
     569           3 :     if (type_in == 'g' || type_out == 'g')
     570           1 :         o->metadata_global_manual = 1;
     571           3 :     if (type_in == 's' || type_out == 's')
     572           2 :         o->metadata_streams_manual = 1;
     573           3 :     if (type_in == 'c' || type_out == 'c')
     574           0 :         o->metadata_chapters_manual = 1;
     575             : 
     576             :     /* ic is NULL when just disabling automatic mappings */
     577           3 :     if (!ic)
     578           0 :         return 0;
     579             : 
     580             : #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
     581             :     if ((index) < 0 || (index) >= (nb_elems)) {\
     582             :         av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
     583             :                 (desc), (index));\
     584             :         exit_program(1);\
     585             :     }
     586             : 
     587             : #define SET_DICT(type, meta, context, index)\
     588             :         switch (type) {\
     589             :         case 'g':\
     590             :             meta = &context->metadata;\
     591             :             break;\
     592             :         case 'c':\
     593             :             METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
     594             :             meta = &context->chapters[index]->metadata;\
     595             :             break;\
     596             :         case 'p':\
     597             :             METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
     598             :             meta = &context->programs[index]->metadata;\
     599             :             break;\
     600             :         case 's':\
     601             :             break; /* handled separately below */ \
     602             :         default: av_assert0(0);\
     603             :         }\
     604             : 
     605           3 :     SET_DICT(type_in, meta_in, ic, idx_in);
     606           3 :     SET_DICT(type_out, meta_out, oc, idx_out);
     607             : 
     608             :     /* for input streams choose first matching stream */
     609           3 :     if (type_in == 's') {
     610           3 :         for (i = 0; i < ic->nb_streams; i++) {
     611           3 :             if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
     612           2 :                 meta_in = &ic->streams[i]->metadata;
     613           2 :                 break;
     614           1 :             } else if (ret < 0)
     615           0 :                 exit_program(1);
     616             :         }
     617           2 :         if (!meta_in) {
     618           0 :             av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
     619           0 :             exit_program(1);
     620             :         }
     621             :     }
     622             : 
     623           3 :     if (type_out == 's') {
     624           8 :         for (i = 0; i < oc->nb_streams; i++) {
     625           6 :             if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
     626           2 :                 meta_out = &oc->streams[i]->metadata;
     627           2 :                 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     628           4 :             } else if (ret < 0)
     629           0 :                 exit_program(1);
     630             :         }
     631             :     } else
     632           1 :         av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     633             : 
     634           3 :     return 0;
     635             : }
     636             : 
     637           0 : static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
     638             : {
     639           0 :     OptionsContext *o = optctx;
     640             :     char buf[128];
     641           0 :     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
     642           0 :     struct tm time = *gmtime((time_t*)&recording_timestamp);
     643           0 :     if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
     644           0 :         return -1;
     645           0 :     parse_option(o, "metadata", buf, options);
     646             : 
     647           0 :     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
     648             :                                  "tag instead.\n", opt);
     649           0 :     return 0;
     650             : }
     651             : 
     652        9500 : static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
     653             : {
     654             :     const AVCodecDescriptor *desc;
     655        9500 :     const char *codec_string = encoder ? "encoder" : "decoder";
     656             :     AVCodec *codec;
     657             : 
     658        9500 :     codec = encoder ?
     659        9500 :         avcodec_find_encoder_by_name(name) :
     660             :         avcodec_find_decoder_by_name(name);
     661             : 
     662        9500 :     if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
     663           1 :         codec = encoder ? avcodec_find_encoder(desc->id) :
     664           0 :                           avcodec_find_decoder(desc->id);
     665           1 :         if (codec)
     666           1 :             av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
     667             :                    codec_string, codec->name, desc->name);
     668             :     }
     669             : 
     670        9500 :     if (!codec) {
     671           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
     672           0 :         exit_program(1);
     673             :     }
     674        9500 :     if (codec->type != type) {
     675           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
     676           0 :         exit_program(1);
     677             :     }
     678        9500 :     return codec;
     679             : }
     680             : 
     681       11824 : static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
     682             : {
     683       11824 :     char *codec_name = NULL;
     684             : 
     685       11824 :     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
     686       11824 :     if (codec_name) {
     687        4376 :         AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
     688        4376 :         st->codecpar->codec_id = codec->id;
     689        4376 :         return codec;
     690             :     } else
     691        7448 :         return avcodec_find_decoder(st->codecpar->codec_id);
     692             : }
     693             : 
     694             : /* Add all the streams from the given input file to the global
     695             :  * list of input streams. */
     696        5650 : static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
     697             : {
     698             :     int i, ret;
     699             : 
     700       11608 :     for (i = 0; i < ic->nb_streams; i++) {
     701        5958 :         AVStream *st = ic->streams[i];
     702        5958 :         AVCodecParameters *par = st->codecpar;
     703        5958 :         InputStream *ist = av_mallocz(sizeof(*ist));
     704        5958 :         char *framerate = NULL, *hwaccel_device = NULL;
     705        5958 :         const char *hwaccel = NULL;
     706        5958 :         char *hwaccel_output_format = NULL;
     707        5958 :         char *codec_tag = NULL;
     708             :         char *next;
     709        5958 :         char *discard_str = NULL;
     710        5958 :         const AVClass *cc = avcodec_get_class();
     711        5958 :         const AVOption *discard_opt = av_opt_find(&cc, "skip_frame", NULL, 0, 0);
     712             : 
     713        5958 :         if (!ist)
     714           0 :             exit_program(1);
     715             : 
     716        5958 :         GROW_ARRAY(input_streams, nb_input_streams);
     717        5958 :         input_streams[nb_input_streams - 1] = ist;
     718             : 
     719        5958 :         ist->st = st;
     720        5958 :         ist->file_index = nb_input_files;
     721        5958 :         ist->discard = 1;
     722        5958 :         st->discard  = AVDISCARD_ALL;
     723        5958 :         ist->nb_samples = 0;
     724        5958 :         ist->min_pts = INT64_MAX;
     725        5958 :         ist->max_pts = INT64_MIN;
     726             : 
     727        5958 :         ist->ts_scale = 1.0;
     728        5958 :         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
     729             : 
     730        5958 :         ist->autorotate = 1;
     731        5958 :         MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
     732             : 
     733        5958 :         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
     734        5958 :         if (codec_tag) {
     735           2 :             uint32_t tag = strtol(codec_tag, &next, 0);
     736           2 :             if (*next)
     737           2 :                 tag = AV_RL32(codec_tag);
     738           2 :             st->codecpar->codec_tag = tag;
     739             :         }
     740             : 
     741        5958 :         ist->dec = choose_decoder(o, ic, st);
     742        5958 :         ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id, ic, st, ist->dec);
     743             : 
     744        5958 :         ist->reinit_filters = -1;
     745        5958 :         MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
     746             : 
     747        5958 :         MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
     748        5958 :         ist->user_set_discard = AVDISCARD_NONE;
     749        5958 :         if (discard_str && av_opt_eval_int(&cc, discard_opt, discard_str, &ist->user_set_discard) < 0) {
     750           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
     751             :                     discard_str);
     752           0 :             exit_program(1);
     753             :         }
     754             : 
     755        5958 :         ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
     756             : 
     757        5958 :         ist->dec_ctx = avcodec_alloc_context3(ist->dec);
     758        5958 :         if (!ist->dec_ctx) {
     759           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
     760           0 :             exit_program(1);
     761             :         }
     762             : 
     763        5958 :         ret = avcodec_parameters_to_context(ist->dec_ctx, par);
     764        5958 :         if (ret < 0) {
     765           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     766           0 :             exit_program(1);
     767             :         }
     768             : 
     769        5958 :         if (o->bitexact)
     770          84 :             ist->dec_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
     771             : 
     772        5958 :         switch (par->codec_type) {
     773        4569 :         case AVMEDIA_TYPE_VIDEO:
     774        4569 :             if(!ist->dec)
     775           0 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     776             : #if FF_API_LOWRES
     777        4569 :             if (st->codec->lowres) {
     778           1 :                 ist->dec_ctx->lowres = st->codec->lowres;
     779           1 :                 ist->dec_ctx->width  = st->codec->width;
     780           1 :                 ist->dec_ctx->height = st->codec->height;
     781           1 :                 ist->dec_ctx->coded_width  = st->codec->coded_width;
     782           1 :                 ist->dec_ctx->coded_height = st->codec->coded_height;
     783             :             }
     784             : #endif
     785             : 
     786             :             // avformat_find_stream_info() doesn't set this for us anymore.
     787        4569 :             ist->dec_ctx->framerate = st->avg_frame_rate;
     788             : 
     789        4569 :             MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
     790        4569 :             if (framerate && av_parse_video_rate(&ist->framerate,
     791             :                                                  framerate) < 0) {
     792           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
     793             :                        framerate);
     794           0 :                 exit_program(1);
     795             :             }
     796             : 
     797        4569 :             ist->top_field_first = -1;
     798        4569 :             MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
     799             : 
     800        4569 :             MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
     801        4569 :             if (hwaccel) {
     802             :                 // The NVDEC hwaccels use a CUDA device, so remap the name here.
     803        4333 :                 if (!strcmp(hwaccel, "nvdec"))
     804           0 :                     hwaccel = "cuda";
     805             : 
     806        4333 :                 if (!strcmp(hwaccel, "none"))
     807        4333 :                     ist->hwaccel_id = HWACCEL_NONE;
     808           0 :                 else if (!strcmp(hwaccel, "auto"))
     809           0 :                     ist->hwaccel_id = HWACCEL_AUTO;
     810             :                 else {
     811             :                     enum AVHWDeviceType type;
     812             :                     int i;
     813           0 :                     for (i = 0; hwaccels[i].name; i++) {
     814           0 :                         if (!strcmp(hwaccels[i].name, hwaccel)) {
     815           0 :                             ist->hwaccel_id = hwaccels[i].id;
     816           0 :                             break;
     817             :                         }
     818             :                     }
     819             : 
     820           0 :                     if (!ist->hwaccel_id) {
     821           0 :                         type = av_hwdevice_find_type_by_name(hwaccel);
     822           0 :                         if (type != AV_HWDEVICE_TYPE_NONE) {
     823           0 :                             ist->hwaccel_id = HWACCEL_GENERIC;
     824           0 :                             ist->hwaccel_device_type = type;
     825             :                         }
     826             :                     }
     827             : 
     828           0 :                     if (!ist->hwaccel_id) {
     829           0 :                         av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
     830             :                                hwaccel);
     831           0 :                         av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
     832           0 :                         type = AV_HWDEVICE_TYPE_NONE;
     833           0 :                         while ((type = av_hwdevice_iterate_types(type)) !=
     834             :                                AV_HWDEVICE_TYPE_NONE)
     835           0 :                             av_log(NULL, AV_LOG_FATAL, "%s ",
     836             :                                    av_hwdevice_get_type_name(type));
     837           0 :                         for (i = 0; hwaccels[i].name; i++)
     838           0 :                             av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
     839           0 :                         av_log(NULL, AV_LOG_FATAL, "\n");
     840           0 :                         exit_program(1);
     841             :                     }
     842             :                 }
     843             :             }
     844             : 
     845        4569 :             MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
     846        4569 :             if (hwaccel_device) {
     847           0 :                 ist->hwaccel_device = av_strdup(hwaccel_device);
     848           0 :                 if (!ist->hwaccel_device)
     849           0 :                     exit_program(1);
     850             :             }
     851             : 
     852        4569 :             MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
     853             :                                  hwaccel_output_format, ic, st);
     854        4569 :             if (hwaccel_output_format) {
     855           0 :                 ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
     856           0 :                 if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
     857           0 :                     av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
     858             :                            "format: %s", hwaccel_output_format);
     859             :                 }
     860             :             } else {
     861        4569 :                 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
     862             :             }
     863             : 
     864        4569 :             ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
     865             : 
     866        4569 :             break;
     867        1300 :         case AVMEDIA_TYPE_AUDIO:
     868        1300 :             ist->guess_layout_max = INT_MAX;
     869        1300 :             MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
     870        1300 :             guess_input_channel_layout(ist);
     871        1300 :             break;
     872          88 :         case AVMEDIA_TYPE_DATA:
     873             :         case AVMEDIA_TYPE_SUBTITLE: {
     874          88 :             char *canvas_size = NULL;
     875          88 :             if(!ist->dec)
     876          46 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     877          88 :             MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
     878          88 :             MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
     879          88 :             if (canvas_size &&
     880           0 :                 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
     881           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
     882           0 :                 exit_program(1);
     883             :             }
     884          88 :             break;
     885             :         }
     886           1 :         case AVMEDIA_TYPE_ATTACHMENT:
     887             :         case AVMEDIA_TYPE_UNKNOWN:
     888           1 :             break;
     889           0 :         default:
     890           0 :             abort();
     891             :         }
     892             : 
     893        5958 :         ret = avcodec_parameters_from_context(par, ist->dec_ctx);
     894        5958 :         if (ret < 0) {
     895           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     896           0 :             exit_program(1);
     897             :         }
     898             :     }
     899        5650 : }
     900             : 
     901        5573 : static void assert_file_overwrite(const char *filename)
     902             : {
     903        5573 :     if (file_overwrite && no_file_overwrite) {
     904           0 :         fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
     905           0 :         exit_program(1);
     906             :     }
     907             : 
     908        5573 :     if (!file_overwrite) {
     909        4192 :         const char *proto_name = avio_find_protocol_name(filename);
     910        4192 :         if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
     911           0 :             if (stdin_interaction && !no_file_overwrite) {
     912           0 :                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
     913           0 :                 fflush(stderr);
     914           0 :                 term_exit();
     915           0 :                 signal(SIGINT, SIG_DFL);
     916           0 :                 if (!read_yesno()) {
     917           0 :                     av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
     918           0 :                     exit_program(1);
     919             :                 }
     920           0 :                 term_init();
     921             :             }
     922             :             else {
     923           0 :                 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
     924           0 :                 exit_program(1);
     925             :             }
     926             :         }
     927             :     }
     928        5573 : }
     929             : 
     930           0 : static void dump_attachment(AVStream *st, const char *filename)
     931             : {
     932             :     int ret;
     933           0 :     AVIOContext *out = NULL;
     934             :     AVDictionaryEntry *e;
     935             : 
     936           0 :     if (!st->codecpar->extradata_size) {
     937           0 :         av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
     938             :                nb_input_files - 1, st->index);
     939           0 :         return;
     940             :     }
     941           0 :     if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
     942           0 :         filename = e->value;
     943           0 :     if (!*filename) {
     944           0 :         av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
     945             :                "in stream #%d:%d.\n", nb_input_files - 1, st->index);
     946           0 :         exit_program(1);
     947             :     }
     948             : 
     949           0 :     assert_file_overwrite(filename);
     950             : 
     951           0 :     if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
     952           0 :         av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
     953             :                filename);
     954           0 :         exit_program(1);
     955             :     }
     956             : 
     957           0 :     avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
     958           0 :     avio_flush(out);
     959           0 :     avio_close(out);
     960             : }
     961             : 
     962        5650 : static int open_input_file(OptionsContext *o, const char *filename)
     963             : {
     964             :     InputFile *f;
     965             :     AVFormatContext *ic;
     966        5650 :     AVInputFormat *file_iformat = NULL;
     967             :     int err, i, ret;
     968             :     int64_t timestamp;
     969        5650 :     AVDictionary *unused_opts = NULL;
     970        5650 :     AVDictionaryEntry *e = NULL;
     971        5650 :     char *   video_codec_name = NULL;
     972        5650 :     char *   audio_codec_name = NULL;
     973        5650 :     char *subtitle_codec_name = NULL;
     974        5650 :     char *    data_codec_name = NULL;
     975        5650 :     int scan_all_pmts_set = 0;
     976             : 
     977        5650 :     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
     978           0 :         o->stop_time = INT64_MAX;
     979           0 :         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
     980             :     }
     981             : 
     982        5650 :     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
     983           0 :         int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
     984           0 :         if (o->stop_time <= start_time) {
     985           0 :             av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
     986           0 :             exit_program(1);
     987             :         } else {
     988           0 :             o->recording_time = o->stop_time - start_time;
     989             :         }
     990             :     }
     991             : 
     992        5650 :     if (o->format) {
     993        2659 :         if (!(file_iformat = av_find_input_format(o->format))) {
     994           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
     995           0 :             exit_program(1);
     996             :         }
     997             :     }
     998             : 
     999        5650 :     if (!strcmp(filename, "-"))
    1000           0 :         filename = "pipe:";
    1001             : 
    1002       11300 :     stdin_interaction &= strncmp(filename, "pipe:", 5) &&
    1003        5650 :                          strcmp(filename, "/dev/stdin");
    1004             : 
    1005             :     /* get default parameters from command line */
    1006        5650 :     ic = avformat_alloc_context();
    1007        5650 :     if (!ic) {
    1008           0 :         print_error(filename, AVERROR(ENOMEM));
    1009           0 :         exit_program(1);
    1010             :     }
    1011        5650 :     if (o->nb_audio_sample_rate) {
    1012          63 :         av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
    1013             :     }
    1014        5650 :     if (o->nb_audio_channels) {
    1015             :         /* because we set audio_channels based on both the "ac" and
    1016             :          * "channel_layout" options, we need to check that the specified
    1017             :          * demuxer actually has the "channels" option before setting it */
    1018          18 :         if (file_iformat && file_iformat->priv_class &&
    1019           9 :             av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
    1020             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
    1021           9 :             av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
    1022             :         }
    1023             :     }
    1024        5650 :     if (o->nb_frame_rates) {
    1025             :         /* set the format-level framerate option;
    1026             :          * this is important for video grabbers, e.g. x11 */
    1027          48 :         if (file_iformat && file_iformat->priv_class &&
    1028          24 :             av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
    1029             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
    1030          24 :             av_dict_set(&o->g->format_opts, "framerate",
    1031          24 :                         o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
    1032             :         }
    1033             :     }
    1034        5650 :     if (o->nb_frame_sizes) {
    1035         466 :         av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
    1036             :     }
    1037        5650 :     if (o->nb_frame_pix_fmts)
    1038         466 :         av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
    1039             : 
    1040        5650 :     MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
    1041        5650 :     MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
    1042        5650 :     MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
    1043        5650 :     MATCH_PER_TYPE_OPT(codec_names, str,     data_codec_name, ic, "d");
    1044             : 
    1045        5650 :     if (video_codec_name)
    1046        2155 :         ic->video_codec    = find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0);
    1047        5650 :     if (audio_codec_name)
    1048          16 :         ic->audio_codec    = find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0);
    1049        5650 :     if (subtitle_codec_name)
    1050           0 :         ic->subtitle_codec = find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0);
    1051        5650 :     if (data_codec_name)
    1052           0 :         ic->data_codec     = find_codec_or_die(data_codec_name    , AVMEDIA_TYPE_DATA    , 0);
    1053             : 
    1054        5650 :     ic->video_codec_id     = video_codec_name    ? ic->video_codec->id    : AV_CODEC_ID_NONE;
    1055        5650 :     ic->audio_codec_id     = audio_codec_name    ? ic->audio_codec->id    : AV_CODEC_ID_NONE;
    1056        5650 :     ic->subtitle_codec_id  = subtitle_codec_name ? ic->subtitle_codec->id : AV_CODEC_ID_NONE;
    1057        5650 :     ic->data_codec_id      = data_codec_name     ? ic->data_codec->id     : AV_CODEC_ID_NONE;
    1058             : 
    1059        5650 :     ic->flags |= AVFMT_FLAG_NONBLOCK;
    1060        5650 :     if (o->bitexact)
    1061          75 :         ic->flags |= AVFMT_FLAG_BITEXACT;
    1062        5650 :     ic->interrupt_callback = int_cb;
    1063             : 
    1064        5650 :     if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
    1065        5650 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
    1066        5650 :         scan_all_pmts_set = 1;
    1067             :     }
    1068             :     /* open the input file with generic avformat function */
    1069        5650 :     err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
    1070        5650 :     if (err < 0) {
    1071           0 :         print_error(filename, err);
    1072           0 :         if (err == AVERROR_PROTOCOL_NOT_FOUND)
    1073           0 :             av_log(NULL, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
    1074           0 :         exit_program(1);
    1075             :     }
    1076        5650 :     if (scan_all_pmts_set)
    1077        5650 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
    1078        5650 :     remove_avoptions(&o->g->format_opts, o->g->codec_opts);
    1079        5650 :     assert_avoptions(o->g->format_opts);
    1080             : 
    1081             :     /* apply forced codec ids */
    1082       11516 :     for (i = 0; i < ic->nb_streams; i++)
    1083        5866 :         choose_decoder(o, ic, ic->streams[i]);
    1084             : 
    1085        5650 :     if (find_stream_info) {
    1086        5650 :         AVDictionary **opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
    1087        5650 :         int orig_nb_streams = ic->nb_streams;
    1088             : 
    1089             :         /* If not enough info to get the stream parameters, we decode the
    1090             :            first frames to get it. (used in mpeg case for example) */
    1091        5650 :         ret = avformat_find_stream_info(ic, opts);
    1092             : 
    1093       11516 :         for (i = 0; i < orig_nb_streams; i++)
    1094        5866 :             av_dict_free(&opts[i]);
    1095        5650 :         av_freep(&opts);
    1096             : 
    1097        5650 :         if (ret < 0) {
    1098           0 :             av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
    1099           0 :             if (ic->nb_streams == 0) {
    1100           0 :                 avformat_close_input(&ic);
    1101           0 :                 exit_program(1);
    1102             :             }
    1103             :         }
    1104             :     }
    1105             : 
    1106        5650 :     if (o->start_time_eof != AV_NOPTS_VALUE) {
    1107           0 :         if (ic->duration>0) {
    1108           0 :             o->start_time = o->start_time_eof + ic->duration;
    1109             :         } else
    1110           0 :             av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
    1111             :     }
    1112        5650 :     timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
    1113             :     /* add the stream start time */
    1114        5650 :     if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
    1115        4190 :         timestamp += ic->start_time;
    1116             : 
    1117             :     /* if seeking requested, we execute it */
    1118        5650 :     if (o->start_time != AV_NOPTS_VALUE) {
    1119          17 :         int64_t seek_timestamp = timestamp;
    1120             : 
    1121          17 :         if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
    1122          17 :             int dts_heuristic = 0;
    1123          34 :             for (i=0; i<ic->nb_streams; i++) {
    1124          17 :                 const AVCodecParameters *par = ic->streams[i]->codecpar;
    1125          17 :                 if (par->video_delay)
    1126           0 :                     dts_heuristic = 1;
    1127             :             }
    1128          17 :             if (dts_heuristic) {
    1129           0 :                 seek_timestamp -= 3*AV_TIME_BASE / 23;
    1130             :             }
    1131             :         }
    1132          17 :         ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
    1133          17 :         if (ret < 0) {
    1134           1 :             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
    1135           1 :                    filename, (double)timestamp / AV_TIME_BASE);
    1136             :         }
    1137             :     }
    1138             : 
    1139             :     /* update the current parameters so that they match the one of the input stream */
    1140        5650 :     add_input_streams(o, ic);
    1141             : 
    1142             :     /* dump the file content */
    1143        5650 :     av_dump_format(ic, nb_input_files, filename, 0);
    1144             : 
    1145        5650 :     GROW_ARRAY(input_files, nb_input_files);
    1146        5650 :     f = av_mallocz(sizeof(*f));
    1147        5650 :     if (!f)
    1148           0 :         exit_program(1);
    1149        5650 :     input_files[nb_input_files - 1] = f;
    1150             : 
    1151        5650 :     f->ctx        = ic;
    1152        5650 :     f->ist_index  = nb_input_streams - ic->nb_streams;
    1153        5650 :     f->start_time = o->start_time;
    1154        5650 :     f->recording_time = o->recording_time;
    1155        5650 :     f->input_ts_offset = o->input_ts_offset;
    1156        5650 :     f->ts_offset  = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
    1157        5650 :     f->nb_streams = ic->nb_streams;
    1158        5650 :     f->rate_emu   = o->rate_emu;
    1159        5650 :     f->accurate_seek = o->accurate_seek;
    1160        5650 :     f->loop = o->loop;
    1161        5650 :     f->duration = 0;
    1162        5650 :     f->time_base = (AVRational){ 1, 1 };
    1163             : #if HAVE_THREADS
    1164        5650 :     f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
    1165             : #endif
    1166             : 
    1167             :     /* check if all codec options have been used */
    1168        5650 :     unused_opts = strip_specifiers(o->g->codec_opts);
    1169       11608 :     for (i = f->ist_index; i < nb_input_streams; i++) {
    1170        5958 :         e = NULL;
    1171       30092 :         while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
    1172             :                                 AV_DICT_IGNORE_SUFFIX)))
    1173       18176 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    1174             :     }
    1175             : 
    1176        5650 :     e = NULL;
    1177       11550 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    1178         250 :         const AVClass *class = avcodec_get_class();
    1179         250 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    1180             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1181         250 :         const AVClass *fclass = avformat_get_class();
    1182         250 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    1183             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1184         250 :         if (!option || foption)
    1185           0 :             continue;
    1186             : 
    1187             : 
    1188         250 :         if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
    1189           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    1190             :                    "input file #%d (%s) is not a decoding option.\n", e->key,
    1191           0 :                    option->help ? option->help : "", nb_input_files - 1,
    1192             :                    filename);
    1193           0 :             exit_program(1);
    1194             :         }
    1195             : 
    1196         500 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    1197             :                "input file #%d (%s) has not been used for any stream. The most "
    1198             :                "likely reason is either wrong type (e.g. a video option with "
    1199             :                "no video streams) or that it is a private option of some decoder "
    1200             :                "which was not actually used for any stream.\n", e->key,
    1201         250 :                option->help ? option->help : "", nb_input_files - 1, filename);
    1202             :     }
    1203        5650 :     av_dict_free(&unused_opts);
    1204             : 
    1205        5650 :     for (i = 0; i < o->nb_dump_attachment; i++) {
    1206             :         int j;
    1207             : 
    1208           0 :         for (j = 0; j < ic->nb_streams; j++) {
    1209           0 :             AVStream *st = ic->streams[j];
    1210             : 
    1211           0 :             if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
    1212           0 :                 dump_attachment(st, o->dump_attachment[i].u.str);
    1213             :         }
    1214             :     }
    1215             : 
    1216        5650 :     input_stream_potentially_available = 1;
    1217             : 
    1218        5650 :     return 0;
    1219             : }
    1220             : 
    1221           0 : static uint8_t *get_line(AVIOContext *s)
    1222             : {
    1223             :     AVIOContext *line;
    1224             :     uint8_t *buf;
    1225             :     char c;
    1226             : 
    1227           0 :     if (avio_open_dyn_buf(&line) < 0) {
    1228           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
    1229           0 :         exit_program(1);
    1230             :     }
    1231             : 
    1232           0 :     while ((c = avio_r8(s)) && c != '\n')
    1233           0 :         avio_w8(line, c);
    1234           0 :     avio_w8(line, 0);
    1235           0 :     avio_close_dyn_buf(line, &buf);
    1236             : 
    1237           0 :     return buf;
    1238             : }
    1239             : 
    1240           0 : static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
    1241             : {
    1242           0 :     int i, ret = -1;
    1243             :     char filename[1000];
    1244           0 :     const char *base[3] = { getenv("AVCONV_DATADIR"),
    1245           0 :                             getenv("HOME"),
    1246             :                             AVCONV_DATADIR,
    1247             :                             };
    1248             : 
    1249           0 :     for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
    1250           0 :         if (!base[i])
    1251           0 :             continue;
    1252           0 :         if (codec_name) {
    1253           0 :             snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
    1254             :                      i != 1 ? "" : "/.avconv", codec_name, preset_name);
    1255           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1256             :         }
    1257           0 :         if (ret < 0) {
    1258           0 :             snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
    1259             :                      i != 1 ? "" : "/.avconv", preset_name);
    1260           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1261             :         }
    1262             :     }
    1263           0 :     return ret;
    1264             : }
    1265             : 
    1266        5756 : static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
    1267             : {
    1268        5756 :     enum AVMediaType type = ost->st->codecpar->codec_type;
    1269        5756 :     char *codec_name = NULL;
    1270             : 
    1271        5756 :     if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
    1272        5745 :         MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
    1273        5745 :         if (!codec_name) {
    1274        2553 :             ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->url,
    1275        2553 :                                                          NULL, ost->st->codecpar->codec_type);
    1276        2553 :             ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
    1277        2553 :             if (!ost->enc) {
    1278           0 :                 av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
    1279             :                        "output stream #%d:%d. Default encoder for format %s (codec %s) is "
    1280             :                        "probably disabled. Please choose an encoder manually.\n",
    1281           0 :                        ost->file_index, ost->index, s->oformat->name,
    1282           0 :                        avcodec_get_name(ost->st->codecpar->codec_id));
    1283           0 :                 return AVERROR_ENCODER_NOT_FOUND;
    1284             :             }
    1285        3192 :         } else if (!strcmp(codec_name, "copy"))
    1286         239 :             ost->stream_copy = 1;
    1287             :         else {
    1288        2953 :             ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
    1289        2953 :             ost->st->codecpar->codec_id = ost->enc->id;
    1290             :         }
    1291        5745 :         ost->encoding_needed = !ost->stream_copy;
    1292             :     } else {
    1293             :         /* no encoding supported for other media types */
    1294          11 :         ost->stream_copy     = 1;
    1295          11 :         ost->encoding_needed = 0;
    1296             :     }
    1297             : 
    1298        5756 :     return 0;
    1299             : }
    1300             : 
    1301        5756 : static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
    1302             : {
    1303             :     OutputStream *ost;
    1304        5756 :     AVStream *st = avformat_new_stream(oc, NULL);
    1305        5756 :     int idx      = oc->nb_streams - 1, ret = 0;
    1306        5756 :     const char *bsfs = NULL, *time_base = NULL;
    1307        5756 :     char *next, *codec_tag = NULL;
    1308        5756 :     double qscale = -1;
    1309             :     int i;
    1310             : 
    1311        5756 :     if (!st) {
    1312           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
    1313           0 :         exit_program(1);
    1314             :     }
    1315             : 
    1316        5756 :     if (oc->nb_streams - 1 < o->nb_streamid_map)
    1317           0 :         st->id = o->streamid_map[oc->nb_streams - 1];
    1318             : 
    1319        5756 :     GROW_ARRAY(output_streams, nb_output_streams);
    1320        5756 :     if (!(ost = av_mallocz(sizeof(*ost))))
    1321           0 :         exit_program(1);
    1322        5756 :     output_streams[nb_output_streams - 1] = ost;
    1323             : 
    1324        5756 :     ost->file_index = nb_output_files - 1;
    1325        5756 :     ost->index      = idx;
    1326        5756 :     ost->st         = st;
    1327        5756 :     st->codecpar->codec_type = type;
    1328             : 
    1329        5756 :     ret = choose_encoder(o, oc, ost);
    1330        5756 :     if (ret < 0) {
    1331           0 :         av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
    1332             :                "%d:%d\n", ost->file_index, ost->index);
    1333           0 :         exit_program(1);
    1334             :     }
    1335             : 
    1336        5756 :     ost->enc_ctx = avcodec_alloc_context3(ost->enc);
    1337        5756 :     if (!ost->enc_ctx) {
    1338           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
    1339           0 :         exit_program(1);
    1340             :     }
    1341        5756 :     ost->enc_ctx->codec_type = type;
    1342             : 
    1343        5756 :     ost->ref_par = avcodec_parameters_alloc();
    1344        5756 :     if (!ost->ref_par) {
    1345           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding parameters.\n");
    1346           0 :         exit_program(1);
    1347             :     }
    1348             : 
    1349        5756 :     if (ost->enc) {
    1350        5506 :         AVIOContext *s = NULL;
    1351        5506 :         char *buf = NULL, *arg = NULL, *preset = NULL;
    1352             : 
    1353        5506 :         ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
    1354             : 
    1355        5506 :         MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
    1356        5506 :         if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
    1357             :             do  {
    1358           0 :                 buf = get_line(s);
    1359           0 :                 if (!buf[0] || buf[0] == '#') {
    1360           0 :                     av_free(buf);
    1361           0 :                     continue;
    1362             :                 }
    1363           0 :                 if (!(arg = strchr(buf, '='))) {
    1364           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
    1365           0 :                     exit_program(1);
    1366             :                 }
    1367           0 :                 *arg++ = 0;
    1368           0 :                 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
    1369           0 :                 av_free(buf);
    1370           0 :             } while (!s->eof_reached);
    1371           0 :             avio_closep(&s);
    1372             :         }
    1373        5506 :         if (ret) {
    1374           0 :             av_log(NULL, AV_LOG_FATAL,
    1375             :                    "Preset %s specified for stream %d:%d, but could not be opened.\n",
    1376             :                    preset, ost->file_index, ost->index);
    1377           0 :             exit_program(1);
    1378             :         }
    1379             :     } else {
    1380         250 :         ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
    1381             :     }
    1382             : 
    1383             : 
    1384        5756 :     if (o->bitexact)
    1385        1630 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_BITEXACT;
    1386             : 
    1387        5756 :     MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
    1388        5756 :     if (time_base) {
    1389             :         AVRational q;
    1390           2 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1391           2 :             q.num <= 0 || q.den <= 0) {
    1392           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1393           0 :             exit_program(1);
    1394             :         }
    1395           1 :         st->time_base = q;
    1396             :     }
    1397             : 
    1398        5756 :     MATCH_PER_STREAM_OPT(enc_time_bases, str, time_base, oc, st);
    1399        5756 :     if (time_base) {
    1400             :         AVRational q;
    1401           2 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1402           1 :             q.den <= 0) {
    1403           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1404           0 :             exit_program(1);
    1405             :         }
    1406           1 :         ost->enc_timebase = q;
    1407             :     }
    1408             : 
    1409        5756 :     ost->max_frames = INT64_MAX;
    1410        5756 :     MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
    1411        9665 :     for (i = 0; i<o->nb_max_frames; i++) {
    1412        3915 :         char *p = o->max_frames[i].specifier;
    1413        3915 :         if (!*p && type != AVMEDIA_TYPE_VIDEO) {
    1414           6 :             av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
    1415           6 :             break;
    1416             :         }
    1417             :     }
    1418             : 
    1419        5756 :     ost->copy_prior_start = -1;
    1420        5756 :     MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
    1421             : 
    1422        5756 :     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
    1423       11578 :     while (bsfs && *bsfs) {
    1424             :         const AVBitStreamFilter *filter;
    1425             :         char *bsf, *bsf_options_str, *bsf_name;
    1426             : 
    1427          66 :         bsf = av_get_token(&bsfs, ",");
    1428          66 :         if (!bsf)
    1429           0 :             exit_program(1);
    1430          66 :         bsf_name = av_strtok(bsf, "=", &bsf_options_str);
    1431          66 :         if (!bsf_name)
    1432           0 :             exit_program(1);
    1433             : 
    1434          66 :         filter = av_bsf_get_by_name(bsf_name);
    1435          66 :         if (!filter) {
    1436           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
    1437           0 :             exit_program(1);
    1438             :         }
    1439             : 
    1440          66 :         ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
    1441          66 :                                         ost->nb_bitstream_filters + 1,
    1442             :                                         sizeof(*ost->bsf_ctx));
    1443          66 :         if (!ost->bsf_ctx)
    1444           0 :             exit_program(1);
    1445             : 
    1446          66 :         ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
    1447          66 :         if (ret < 0) {
    1448           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
    1449           0 :             exit_program(1);
    1450             :         }
    1451             : 
    1452          66 :         ost->nb_bitstream_filters++;
    1453             : 
    1454          66 :         if (bsf_options_str && filter->priv_class) {
    1455           9 :             const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
    1456           9 :             const char * shorthand[2] = {NULL};
    1457             : 
    1458           9 :             if (opt)
    1459           9 :                 shorthand[0] = opt->name;
    1460             : 
    1461           9 :             ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
    1462           9 :             if (ret < 0) {
    1463           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
    1464           0 :                 exit_program(1);
    1465             :             }
    1466             :         }
    1467          66 :         av_freep(&bsf);
    1468             : 
    1469          66 :         if (*bsfs)
    1470           0 :             bsfs++;
    1471             :     }
    1472             : 
    1473        5756 :     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
    1474        5756 :     if (codec_tag) {
    1475           6 :         uint32_t tag = strtol(codec_tag, &next, 0);
    1476           6 :         if (*next)
    1477           6 :             tag = AV_RL32(codec_tag);
    1478          12 :         ost->st->codecpar->codec_tag =
    1479          12 :         ost->enc_ctx->codec_tag = tag;
    1480             :     }
    1481             : 
    1482        5756 :     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
    1483        5756 :     if (qscale >= 0) {
    1484         224 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
    1485         224 :         ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
    1486             :     }
    1487             : 
    1488        5756 :     MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
    1489        5756 :     ost->disposition = av_strdup(ost->disposition);
    1490             : 
    1491        5756 :     ost->max_muxing_queue_size = 128;
    1492        5756 :     MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
    1493        5756 :     ost->max_muxing_queue_size *= sizeof(AVPacket);
    1494             : 
    1495        5756 :     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
    1496        2133 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    1497             : 
    1498        5756 :     av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
    1499             : 
    1500        5756 :     av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
    1501        5756 :     if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
    1502          49 :         av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
    1503             : 
    1504        5756 :     av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
    1505             : 
    1506        5756 :     ost->source_index = source_index;
    1507        5756 :     if (source_index >= 0) {
    1508        5682 :         ost->sync_ist = input_streams[source_index];
    1509        5682 :         input_streams[source_index]->discard = 0;
    1510        5682 :         input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
    1511             :     }
    1512        5756 :     ost->last_mux_dts = AV_NOPTS_VALUE;
    1513             : 
    1514        5756 :     ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
    1515        5756 :     if (!ost->muxing_queue)
    1516           0 :         exit_program(1);
    1517             : 
    1518        5756 :     return ost;
    1519             : }
    1520             : 
    1521           0 : static void parse_matrix_coeffs(uint16_t *dest, const char *str)
    1522             : {
    1523             :     int i;
    1524           0 :     const char *p = str;
    1525           0 :     for (i = 0;; i++) {
    1526           0 :         dest[i] = atoi(p);
    1527           0 :         if (i == 63)
    1528           0 :             break;
    1529           0 :         p = strchr(p, ',');
    1530           0 :         if (!p) {
    1531           0 :             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
    1532           0 :             exit_program(1);
    1533             :         }
    1534           0 :         p++;
    1535             :     }
    1536           0 : }
    1537             : 
    1538             : /* read file contents into a string */
    1539          25 : static uint8_t *read_file(const char *filename)
    1540             : {
    1541          25 :     AVIOContext *pb      = NULL;
    1542          25 :     AVIOContext *dyn_buf = NULL;
    1543          25 :     int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
    1544             :     uint8_t buf[1024], *str;
    1545             : 
    1546          25 :     if (ret < 0) {
    1547           0 :         av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
    1548           0 :         return NULL;
    1549             :     }
    1550             : 
    1551          25 :     ret = avio_open_dyn_buf(&dyn_buf);
    1552          25 :     if (ret < 0) {
    1553           0 :         avio_closep(&pb);
    1554           0 :         return NULL;
    1555             :     }
    1556          75 :     while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
    1557          25 :         avio_write(dyn_buf, buf, ret);
    1558          25 :     avio_w8(dyn_buf, 0);
    1559          25 :     avio_closep(&pb);
    1560             : 
    1561          25 :     ret = avio_close_dyn_buf(dyn_buf, &str);
    1562          25 :     if (ret < 0)
    1563           0 :         return NULL;
    1564          25 :     return str;
    1565             : }
    1566             : 
    1567        5476 : static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
    1568             :                              OutputStream *ost)
    1569             : {
    1570        5476 :     AVStream *st = ost->st;
    1571             : 
    1572        5476 :     if (ost->filters_script && ost->filters) {
    1573           0 :         av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
    1574             :                "output stream #%d:%d.\n", nb_output_files, st->index);
    1575           0 :         exit_program(1);
    1576             :     }
    1577             : 
    1578        5476 :     if (ost->filters_script)
    1579           4 :         return read_file(ost->filters_script);
    1580        5472 :     else if (ost->filters)
    1581        2425 :         return av_strdup(ost->filters);
    1582             : 
    1583        3047 :     return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
    1584             :                      "null" : "anull");
    1585             : }
    1586             : 
    1587         233 : static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
    1588             :                                      const OutputStream *ost, enum AVMediaType type)
    1589             : {
    1590         233 :     if (ost->filters_script || ost->filters) {
    1591           0 :         av_log(NULL, AV_LOG_ERROR,
    1592             :                "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
    1593             :                "Filtering and streamcopy cannot be used together.\n",
    1594           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    1595           0 :                ost->filters ? ost->filters : ost->filters_script,
    1596             :                av_get_media_type_string(type), ost->file_index, ost->index);
    1597           0 :         exit_program(1);
    1598             :     }
    1599         233 : }
    1600             : 
    1601        4546 : static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1602             : {
    1603             :     AVStream *st;
    1604             :     OutputStream *ost;
    1605             :     AVCodecContext *video_enc;
    1606        4546 :     char *frame_rate = NULL, *frame_aspect_ratio = NULL;
    1607             : 
    1608        4546 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
    1609        4546 :     st  = ost->st;
    1610        4546 :     video_enc = ost->enc_ctx;
    1611             : 
    1612        4546 :     MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
    1613        4546 :     if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
    1614           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
    1615           0 :         exit_program(1);
    1616             :     }
    1617        4546 :     if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
    1618           0 :         av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
    1619             : 
    1620        4546 :     MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
    1621        4546 :     if (frame_aspect_ratio) {
    1622             :         AVRational q;
    1623           0 :         if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
    1624           0 :             q.num <= 0 || q.den <= 0) {
    1625           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
    1626           0 :             exit_program(1);
    1627             :         }
    1628           0 :         ost->frame_aspect_ratio = q;
    1629             :     }
    1630             : 
    1631        4546 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1632        4546 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1633             : 
    1634        4546 :     if (!ost->stream_copy) {
    1635        4408 :         const char *p = NULL;
    1636        4408 :         char *frame_size = NULL;
    1637        4408 :         char *frame_pix_fmt = NULL;
    1638        4408 :         char *intra_matrix = NULL, *inter_matrix = NULL;
    1639        4408 :         char *chroma_intra_matrix = NULL;
    1640        4408 :         int do_pass = 0;
    1641             :         int i;
    1642             : 
    1643        4408 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1644        4408 :         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
    1645           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1646           0 :             exit_program(1);
    1647             :         }
    1648             : 
    1649        4408 :         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
    1650        4408 :         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
    1651        4408 :         if (frame_pix_fmt && *frame_pix_fmt == '+') {
    1652           0 :             ost->keep_pix_fmt = 1;
    1653           0 :             if (!*++frame_pix_fmt)
    1654           0 :                 frame_pix_fmt = NULL;
    1655             :         }
    1656        4408 :         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
    1657           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
    1658           0 :             exit_program(1);
    1659             :         }
    1660        4408 :         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
    1661             : 
    1662        4408 :         if (intra_only)
    1663           0 :             video_enc->gop_size = 0;
    1664        4408 :         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
    1665        4408 :         if (intra_matrix) {
    1666           0 :             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
    1667           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1668           0 :                 exit_program(1);
    1669             :             }
    1670           0 :             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
    1671             :         }
    1672        4408 :         MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
    1673        4408 :         if (chroma_intra_matrix) {
    1674           0 :             uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
    1675           0 :             if (!p) {
    1676           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1677           0 :                 exit_program(1);
    1678             :             }
    1679           0 :             video_enc->chroma_intra_matrix = p;
    1680           0 :             parse_matrix_coeffs(p, chroma_intra_matrix);
    1681             :         }
    1682        4408 :         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
    1683        4408 :         if (inter_matrix) {
    1684           0 :             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
    1685           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
    1686           0 :                 exit_program(1);
    1687             :             }
    1688           0 :             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
    1689             :         }
    1690             : 
    1691        4408 :         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
    1692        4408 :         for (i = 0; p; i++) {
    1693             :             int start, end, q;
    1694           0 :             int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
    1695           0 :             if (e != 3) {
    1696           0 :                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
    1697           0 :                 exit_program(1);
    1698             :             }
    1699           0 :             video_enc->rc_override =
    1700           0 :                 av_realloc_array(video_enc->rc_override,
    1701           0 :                                  i + 1, sizeof(RcOverride));
    1702           0 :             if (!video_enc->rc_override) {
    1703           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
    1704           0 :                 exit_program(1);
    1705             :             }
    1706           0 :             video_enc->rc_override[i].start_frame = start;
    1707           0 :             video_enc->rc_override[i].end_frame   = end;
    1708           0 :             if (q > 0) {
    1709           0 :                 video_enc->rc_override[i].qscale         = q;
    1710           0 :                 video_enc->rc_override[i].quality_factor = 1.0;
    1711             :             }
    1712             :             else {
    1713           0 :                 video_enc->rc_override[i].qscale         = 0;
    1714           0 :                 video_enc->rc_override[i].quality_factor = -q/100.0;
    1715             :             }
    1716           0 :             p = strchr(p, '/');
    1717           0 :             if (p) p++;
    1718             :         }
    1719        4408 :         video_enc->rc_override_count = i;
    1720             : 
    1721        4408 :         if (do_psnr)
    1722           0 :             video_enc->flags|= AV_CODEC_FLAG_PSNR;
    1723             : 
    1724             :         /* two pass mode */
    1725        4408 :         MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
    1726        4408 :         if (do_pass) {
    1727           0 :             if (do_pass & 1) {
    1728           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS1;
    1729           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
    1730             :             }
    1731           0 :             if (do_pass & 2) {
    1732           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS2;
    1733           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
    1734             :             }
    1735             :         }
    1736             : 
    1737        4408 :         MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
    1738        4408 :         if (ost->logfile_prefix &&
    1739           0 :             !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
    1740           0 :             exit_program(1);
    1741             : 
    1742        4408 :         if (do_pass) {
    1743             :             char logfilename[1024];
    1744             :             FILE *f;
    1745             : 
    1746           0 :             snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
    1747           0 :                      ost->logfile_prefix ? ost->logfile_prefix :
    1748             :                                            DEFAULT_PASS_LOGFILENAME_PREFIX,
    1749             :                      i);
    1750           0 :             if (!strcmp(ost->enc->name, "libx264")) {
    1751           0 :                 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
    1752             :             } else {
    1753           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
    1754           0 :                     char  *logbuffer = read_file(logfilename);
    1755             : 
    1756           0 :                     if (!logbuffer) {
    1757           0 :                         av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
    1758             :                                logfilename);
    1759           0 :                         exit_program(1);
    1760             :                     }
    1761           0 :                     video_enc->stats_in = logbuffer;
    1762             :                 }
    1763           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
    1764           0 :                     f = av_fopen_utf8(logfilename, "wb");
    1765           0 :                     if (!f) {
    1766           0 :                         av_log(NULL, AV_LOG_FATAL,
    1767             :                                "Cannot write log file '%s' for pass-1 encoding: %s\n",
    1768           0 :                                logfilename, strerror(errno));
    1769           0 :                         exit_program(1);
    1770             :                     }
    1771           0 :                     ost->logfile = f;
    1772             :                 }
    1773             :             }
    1774             :         }
    1775             : 
    1776        4408 :         MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
    1777        4408 :         if (ost->forced_keyframes)
    1778           1 :             ost->forced_keyframes = av_strdup(ost->forced_keyframes);
    1779             : 
    1780        4408 :         MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
    1781             : 
    1782        4408 :         ost->top_field_first = -1;
    1783        4408 :         MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
    1784             : 
    1785             : 
    1786        4408 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1787        4408 :         if (!ost->avfilter)
    1788           0 :             exit_program(1);
    1789             :     } else {
    1790         138 :         MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
    1791             :     }
    1792             : 
    1793        4546 :     if (ost->stream_copy)
    1794         138 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
    1795             : 
    1796        4546 :     return ost;
    1797             : }
    1798             : 
    1799        1163 : static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1800             : {
    1801             :     int n;
    1802             :     AVStream *st;
    1803             :     OutputStream *ost;
    1804             :     AVCodecContext *audio_enc;
    1805             : 
    1806        1163 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
    1807        1163 :     st  = ost->st;
    1808             : 
    1809        1163 :     audio_enc = ost->enc_ctx;
    1810        1163 :     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
    1811             : 
    1812        1163 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1813        1163 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1814             : 
    1815        1163 :     if (!ost->stream_copy) {
    1816        1068 :         char *sample_fmt = NULL;
    1817             : 
    1818        1068 :         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
    1819             : 
    1820        1068 :         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
    1821        1068 :         if (sample_fmt &&
    1822           0 :             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
    1823           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
    1824           0 :             exit_program(1);
    1825             :         }
    1826             : 
    1827        1068 :         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
    1828             : 
    1829        1068 :         MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
    1830        1068 :         ost->apad = av_strdup(ost->apad);
    1831             : 
    1832        1068 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1833        1068 :         if (!ost->avfilter)
    1834           0 :             exit_program(1);
    1835             : 
    1836             :         /* check for channel mapping for this audio stream */
    1837        1078 :         for (n = 0; n < o->nb_audio_channel_maps; n++) {
    1838          10 :             AudioChannelMap *map = &o->audio_channel_maps[n];
    1839          20 :             if ((map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
    1840          10 :                 (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
    1841             :                 InputStream *ist;
    1842             : 
    1843          10 :                 if (map->channel_idx == -1) {
    1844           1 :                     ist = NULL;
    1845           9 :                 } else if (ost->source_index < 0) {
    1846           0 :                     av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
    1847           0 :                            ost->file_index, ost->st->index);
    1848           0 :                     continue;
    1849             :                 } else {
    1850           9 :                     ist = input_streams[ost->source_index];
    1851             :                 }
    1852             : 
    1853          10 :                 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
    1854          10 :                     if (av_reallocp_array(&ost->audio_channels_map,
    1855          10 :                                           ost->audio_channels_mapped + 1,
    1856             :                                           sizeof(*ost->audio_channels_map)
    1857             :                                           ) < 0 )
    1858           0 :                         exit_program(1);
    1859             : 
    1860          10 :                     ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
    1861             :                 }
    1862             :             }
    1863             :         }
    1864             :     }
    1865             : 
    1866        1163 :     if (ost->stream_copy)
    1867          95 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
    1868             : 
    1869        1163 :     return ost;
    1870             : }
    1871             : 
    1872          10 : static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1873             : {
    1874             :     OutputStream *ost;
    1875             : 
    1876          10 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
    1877          10 :     if (!ost->stream_copy) {
    1878           0 :         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
    1879           0 :         exit_program(1);
    1880             :     }
    1881             : 
    1882          10 :     return ost;
    1883             : }
    1884             : 
    1885           0 : static OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1886             : {
    1887             :     OutputStream *ost;
    1888             : 
    1889           0 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
    1890           0 :     if (!ost->stream_copy) {
    1891           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
    1892           0 :         exit_program(1);
    1893             :     }
    1894             : 
    1895           0 :     return ost;
    1896             : }
    1897             : 
    1898           1 : static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1899             : {
    1900           1 :     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
    1901           1 :     ost->stream_copy = 1;
    1902           1 :     ost->finished    = 1;
    1903           1 :     return ost;
    1904             : }
    1905             : 
    1906          36 : static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1907             : {
    1908             :     AVStream *st;
    1909             :     OutputStream *ost;
    1910             :     AVCodecContext *subtitle_enc;
    1911             : 
    1912          36 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
    1913          36 :     st  = ost->st;
    1914          36 :     subtitle_enc = ost->enc_ctx;
    1915             : 
    1916          36 :     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
    1917             : 
    1918          36 :     MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
    1919             : 
    1920          36 :     if (!ost->stream_copy) {
    1921          30 :         char *frame_size = NULL;
    1922             : 
    1923          30 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1924          30 :         if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
    1925           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1926           0 :             exit_program(1);
    1927             :         }
    1928             :     }
    1929             : 
    1930          36 :     return ost;
    1931             : }
    1932             : 
    1933             : /* arg format is "output-stream-index:streamid-value". */
    1934           0 : static int opt_streamid(void *optctx, const char *opt, const char *arg)
    1935             : {
    1936           0 :     OptionsContext *o = optctx;
    1937             :     int idx;
    1938             :     char *p;
    1939             :     char idx_str[16];
    1940             : 
    1941           0 :     av_strlcpy(idx_str, arg, sizeof(idx_str));
    1942           0 :     p = strchr(idx_str, ':');
    1943           0 :     if (!p) {
    1944           0 :         av_log(NULL, AV_LOG_FATAL,
    1945             :                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
    1946             :                arg, opt);
    1947           0 :         exit_program(1);
    1948             :     }
    1949           0 :     *p++ = '\0';
    1950           0 :     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
    1951           0 :     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
    1952           0 :     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
    1953           0 :     return 0;
    1954             : }
    1955             : 
    1956          10 : static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
    1957             : {
    1958          10 :     AVFormatContext *is = ifile->ctx;
    1959          10 :     AVFormatContext *os = ofile->ctx;
    1960             :     AVChapter **tmp;
    1961             :     int i;
    1962             : 
    1963          10 :     tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
    1964          10 :     if (!tmp)
    1965           0 :         return AVERROR(ENOMEM);
    1966          10 :     os->chapters = tmp;
    1967             : 
    1968          20 :     for (i = 0; i < is->nb_chapters; i++) {
    1969          10 :         AVChapter *in_ch = is->chapters[i], *out_ch;
    1970          10 :         int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
    1971          10 :         int64_t ts_off   = av_rescale_q(start_time - ifile->ts_offset,
    1972          10 :                                        AV_TIME_BASE_Q, in_ch->time_base);
    1973          10 :         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
    1974           0 :                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
    1975             : 
    1976             : 
    1977          10 :         if (in_ch->end < ts_off)
    1978           0 :             continue;
    1979          10 :         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
    1980           0 :             break;
    1981             : 
    1982          10 :         out_ch = av_mallocz(sizeof(AVChapter));
    1983          10 :         if (!out_ch)
    1984           0 :             return AVERROR(ENOMEM);
    1985             : 
    1986          10 :         out_ch->id        = in_ch->id;
    1987          10 :         out_ch->time_base = in_ch->time_base;
    1988          10 :         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
    1989          10 :         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
    1990             : 
    1991          10 :         if (copy_metadata)
    1992          10 :             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
    1993             : 
    1994          10 :         os->chapters[os->nb_chapters++] = out_ch;
    1995             :     }
    1996          10 :     return 0;
    1997             : }
    1998             : 
    1999          73 : static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
    2000             :                                AVFormatContext *oc)
    2001             : {
    2002             :     OutputStream *ost;
    2003             : 
    2004          73 :     switch (ofilter->type) {
    2005          59 :     case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
    2006          14 :     case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
    2007           0 :     default:
    2008           0 :         av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
    2009             :                "currently.\n");
    2010           0 :         exit_program(1);
    2011             :     }
    2012             : 
    2013          73 :     ost->source_index = -1;
    2014          73 :     ost->filter       = ofilter;
    2015             : 
    2016          73 :     ofilter->ost      = ost;
    2017          73 :     ofilter->format   = -1;
    2018             : 
    2019          73 :     if (ost->stream_copy) {
    2020           0 :         av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
    2021             :                "which is fed from a complex filtergraph. Filtering and streamcopy "
    2022             :                "cannot be used together.\n", ost->file_index, ost->index);
    2023           0 :         exit_program(1);
    2024             :     }
    2025             : 
    2026          73 :     if (ost->avfilter && (ost->filters || ost->filters_script)) {
    2027           0 :         const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
    2028           0 :         av_log(NULL, AV_LOG_ERROR,
    2029             :                "%s '%s' was specified through the %s option "
    2030             :                "for output stream %d:%d, which is fed from a complex filtergraph.\n"
    2031             :                "%s and -filter_complex cannot be used together for the same stream.\n",
    2032           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    2033           0 :                ost->filters ? ost->filters : ost->filters_script,
    2034             :                opt, ost->file_index, ost->index, opt);
    2035           0 :         exit_program(1);
    2036             :     }
    2037             : 
    2038          73 :     avfilter_inout_free(&ofilter->out_tmp);
    2039          73 : }
    2040             : 
    2041        5617 : static int init_complex_filters(void)
    2042             : {
    2043        5617 :     int i, ret = 0;
    2044             : 
    2045        5688 :     for (i = 0; i < nb_filtergraphs; i++) {
    2046          71 :         ret = init_complex_filtergraph(filtergraphs[i]);
    2047          71 :         if (ret < 0)
    2048           0 :             return ret;
    2049             :     }
    2050        5617 :     return 0;
    2051             : }
    2052             : 
    2053        5618 : static int open_output_file(OptionsContext *o, const char *filename)
    2054             : {
    2055             :     AVFormatContext *oc;
    2056             :     int i, j, err;
    2057             :     OutputFile *of;
    2058             :     OutputStream *ost;
    2059             :     InputStream  *ist;
    2060        5618 :     AVDictionary *unused_opts = NULL;
    2061        5618 :     AVDictionaryEntry *e = NULL;
    2062        5618 :     int format_flags = 0;
    2063             : 
    2064        5618 :     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
    2065           0 :         o->stop_time = INT64_MAX;
    2066           0 :         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
    2067             :     }
    2068             : 
    2069        5618 :     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
    2070           0 :         int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
    2071           0 :         if (o->stop_time <= start_time) {
    2072           0 :             av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
    2073           0 :             exit_program(1);
    2074             :         } else {
    2075           0 :             o->recording_time = o->stop_time - start_time;
    2076             :         }
    2077             :     }
    2078             : 
    2079        5618 :     GROW_ARRAY(output_files, nb_output_files);
    2080        5618 :     of = av_mallocz(sizeof(*of));
    2081        5618 :     if (!of)
    2082           0 :         exit_program(1);
    2083        5618 :     output_files[nb_output_files - 1] = of;
    2084             : 
    2085        5618 :     of->ost_index      = nb_output_streams;
    2086        5618 :     of->recording_time = o->recording_time;
    2087        5618 :     of->start_time     = o->start_time;
    2088        5618 :     of->limit_filesize = o->limit_filesize;
    2089        5618 :     of->shortest       = o->shortest;
    2090        5618 :     av_dict_copy(&of->opts, o->g->format_opts, 0);
    2091             : 
    2092        5618 :     if (!strcmp(filename, "-"))
    2093        2155 :         filename = "pipe:";
    2094             : 
    2095        5618 :     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
    2096        5618 :     if (!oc) {
    2097           0 :         print_error(filename, err);
    2098           0 :         exit_program(1);
    2099             :     }
    2100             : 
    2101        5618 :     of->ctx = oc;
    2102        5618 :     if (o->recording_time != INT64_MAX)
    2103         114 :         oc->duration = o->recording_time;
    2104             : 
    2105        5618 :     oc->interrupt_callback = int_cb;
    2106             : 
    2107        5618 :     e = av_dict_get(o->g->format_opts, "fflags", NULL, 0);
    2108        5618 :     if (e) {
    2109        3158 :         const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
    2110        3158 :         av_opt_eval_flags(oc, o, e->value, &format_flags);
    2111             :     }
    2112        5618 :     if (o->bitexact) {
    2113        1586 :         format_flags |= AVFMT_FLAG_BITEXACT;
    2114        1586 :         oc->flags    |= AVFMT_FLAG_BITEXACT;
    2115             :     }
    2116             : 
    2117             :     /* create streams for all unlabeled output pads */
    2118        5690 :     for (i = 0; i < nb_filtergraphs; i++) {
    2119          72 :         FilterGraph *fg = filtergraphs[i];
    2120         146 :         for (j = 0; j < fg->nb_outputs; j++) {
    2121          74 :             OutputFilter *ofilter = fg->outputs[j];
    2122             : 
    2123          74 :             if (!ofilter->out_tmp || ofilter->out_tmp->name)
    2124           4 :                 continue;
    2125             : 
    2126          70 :             switch (ofilter->type) {
    2127          57 :             case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
    2128          13 :             case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
    2129           0 :             case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
    2130             :             }
    2131          70 :             init_output_filter(ofilter, o, oc);
    2132             :         }
    2133             :     }
    2134             : 
    2135        5618 :     if (!o->nb_stream_maps) {
    2136        5585 :         char *subtitle_codec_name = NULL;
    2137             :         /* pick the "best" stream of each type */
    2138             : 
    2139             :         /* video: highest resolution */
    2140        5585 :         if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
    2141        4695 :             int area = 0, idx = -1;
    2142        4695 :             int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
    2143        9661 :             for (i = 0; i < nb_input_streams; i++) {
    2144             :                 int new_area;
    2145        4966 :                 ist = input_streams[i];
    2146        4966 :                 new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames;
    2147        4966 :                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2148           8 :                     new_area = 1;
    2149        4966 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
    2150             :                     new_area > area) {
    2151        4466 :                     if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2152           0 :                         continue;
    2153        4466 :                     area = new_area;
    2154        4466 :                     idx = i;
    2155             :                 }
    2156             :             }
    2157        4695 :             if (idx >= 0)
    2158        4466 :                 new_video_stream(o, oc, idx);
    2159             :         }
    2160             : 
    2161             :         /* audio: most channels */
    2162        5585 :         if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
    2163        4741 :             int best_score = 0, idx = -1;
    2164        9654 :             for (i = 0; i < nb_input_streams; i++) {
    2165             :                 int score;
    2166        4913 :                 ist = input_streams[i];
    2167        4913 :                 score = ist->st->codecpar->channels + 100000000*!!ist->st->codec_info_nb_frames;
    2168        4913 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
    2169             :                     score > best_score) {
    2170        1128 :                     best_score = score;
    2171        1128 :                     idx = i;
    2172             :                 }
    2173             :             }
    2174        4741 :             if (idx >= 0)
    2175        1128 :                 new_audio_stream(o, oc, idx);
    2176             :         }
    2177             : 
    2178             :         /* subtitles: pick first */
    2179        5585 :         MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
    2180        5585 :         if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
    2181          53 :             for (i = 0; i < nb_input_streams; i++)
    2182          46 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
    2183          34 :                     AVCodecDescriptor const *input_descriptor =
    2184          34 :                         avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
    2185          34 :                     AVCodecDescriptor const *output_descriptor = NULL;
    2186          34 :                     AVCodec const *output_codec =
    2187          34 :                         avcodec_find_encoder(oc->oformat->subtitle_codec);
    2188          34 :                     int input_props = 0, output_props = 0;
    2189          34 :                     if (output_codec)
    2190          33 :                         output_descriptor = avcodec_descriptor_get(output_codec->id);
    2191          34 :                     if (input_descriptor)
    2192          34 :                         input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2193          34 :                     if (output_descriptor)
    2194          33 :                         output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2195          62 :                     if (subtitle_codec_name ||
    2196          28 :                         input_props & output_props ||
    2197             :                         // Map dvb teletext which has neither property to any output subtitle encoder
    2198           0 :                         input_descriptor && output_descriptor &&
    2199           0 :                         (!input_descriptor->props ||
    2200           0 :                          !output_descriptor->props)) {
    2201          34 :                         new_subtitle_stream(o, oc, i);
    2202          34 :                         break;
    2203             :                     }
    2204             :                 }
    2205             :         }
    2206             :         /* Data only if codec id match */
    2207        5585 :         if (!o->data_disable ) {
    2208        5585 :             enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
    2209        5585 :             for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
    2210           0 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
    2211           0 :                     && input_streams[i]->st->codecpar->codec_id == codec_id )
    2212           0 :                     new_data_stream(o, oc, i);
    2213             :             }
    2214             :         }
    2215             :     } else {
    2216          90 :         for (i = 0; i < o->nb_stream_maps; i++) {
    2217          57 :             StreamMap *map = &o->stream_maps[i];
    2218             : 
    2219          57 :             if (map->disabled)
    2220           0 :                 continue;
    2221             : 
    2222          57 :             if (map->linklabel) {
    2223             :                 FilterGraph *fg;
    2224           3 :                 OutputFilter *ofilter = NULL;
    2225             :                 int j, k;
    2226             : 
    2227           3 :                 for (j = 0; j < nb_filtergraphs; j++) {
    2228           3 :                     fg = filtergraphs[j];
    2229           3 :                     for (k = 0; k < fg->nb_outputs; k++) {
    2230           3 :                         AVFilterInOut *out = fg->outputs[k]->out_tmp;
    2231           3 :                         if (out && !strcmp(out->name, map->linklabel)) {
    2232           3 :                             ofilter = fg->outputs[k];
    2233           3 :                             goto loop_end;
    2234             :                         }
    2235             :                     }
    2236             :                 }
    2237           0 : loop_end:
    2238           3 :                 if (!ofilter) {
    2239           0 :                     av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
    2240             :                            "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
    2241           0 :                     exit_program(1);
    2242             :                 }
    2243           3 :                 init_output_filter(ofilter, o, oc);
    2244             :             } else {
    2245          54 :                 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
    2246             : 
    2247          54 :                 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
    2248          54 :                 if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
    2249           0 :                     continue;
    2250          54 :                 if(o->   audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
    2251           0 :                     continue;
    2252          54 :                 if(o->   video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    2253           0 :                     continue;
    2254          54 :                 if(o->    data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
    2255           0 :                     continue;
    2256             : 
    2257          54 :                 ost = NULL;
    2258          54 :                 switch (ist->st->codecpar->codec_type) {
    2259          21 :                 case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
    2260          21 :                 case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
    2261           2 :                 case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
    2262          10 :                 case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
    2263           0 :                 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
    2264           0 :                 case AVMEDIA_TYPE_UNKNOWN:
    2265           0 :                     if (copy_unknown_streams) {
    2266           0 :                         ost = new_unknown_stream   (o, oc, src_idx);
    2267           0 :                         break;
    2268             :                     }
    2269             :                 default:
    2270           0 :                     av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
    2271             :                            "Cannot map stream #%d:%d - unsupported type.\n",
    2272             :                            map->file_index, map->stream_index);
    2273           0 :                     if (!ignore_unknown_streams) {
    2274           0 :                         av_log(NULL, AV_LOG_FATAL,
    2275             :                                "If you want unsupported types ignored instead "
    2276             :                                "of failing, please use the -ignore_unknown option\n"
    2277             :                                "If you want them copied, please use -copy_unknown\n");
    2278           0 :                         exit_program(1);
    2279             :                     }
    2280             :                 }
    2281          54 :                 if (ost)
    2282         108 :                     ost->sync_ist = input_streams[  input_files[map->sync_file_index]->ist_index
    2283          54 :                                                   + map->sync_stream_index];
    2284             :             }
    2285             :         }
    2286             :     }
    2287             : 
    2288             :     /* handle attached files */
    2289        5619 :     for (i = 0; i < o->nb_attachments; i++) {
    2290             :         AVIOContext *pb;
    2291             :         uint8_t *attachment;
    2292             :         const char *p;
    2293             :         int64_t len;
    2294             : 
    2295           1 :         if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
    2296           0 :             av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
    2297           0 :                    o->attachments[i]);
    2298           0 :             exit_program(1);
    2299             :         }
    2300           1 :         if ((len = avio_size(pb)) <= 0) {
    2301           0 :             av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
    2302           0 :                    o->attachments[i]);
    2303           0 :             exit_program(1);
    2304             :         }
    2305           1 :         if (!(attachment = av_malloc(len))) {
    2306           0 :             av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
    2307           0 :                    o->attachments[i]);
    2308           0 :             exit_program(1);
    2309             :         }
    2310           1 :         avio_read(pb, attachment, len);
    2311             : 
    2312           1 :         ost = new_attachment_stream(o, oc, -1);
    2313           1 :         ost->stream_copy               = 0;
    2314           1 :         ost->attachment_filename       = o->attachments[i];
    2315           1 :         ost->st->codecpar->extradata      = attachment;
    2316           1 :         ost->st->codecpar->extradata_size = len;
    2317             : 
    2318           1 :         p = strrchr(o->attachments[i], '/');
    2319           1 :         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
    2320           1 :         avio_closep(&pb);
    2321             :     }
    2322             : 
    2323             : #if FF_API_LAVF_AVCTX
    2324       11374 :     for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
    2325             :         AVDictionaryEntry *e;
    2326        5756 :         ost = output_streams[i];
    2327             : 
    2328        5756 :         if ((ost->stream_copy || ost->attachment_filename)
    2329         250 :             && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
    2330          59 :             && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
    2331          59 :             if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
    2332           0 :                 exit_program(1);
    2333             :     }
    2334             : #endif
    2335             : 
    2336        5618 :     if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
    2337           0 :         av_dump_format(oc, nb_output_files - 1, oc->url, 1);
    2338           0 :         av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
    2339           0 :         exit_program(1);
    2340             :     }
    2341             : 
    2342             :     /* check if all codec options have been used */
    2343        5618 :     unused_opts = strip_specifiers(o->g->codec_opts);
    2344       11374 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2345        5756 :         e = NULL;
    2346       24521 :         while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
    2347             :                                 AV_DICT_IGNORE_SUFFIX)))
    2348       13009 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    2349             :     }
    2350             : 
    2351        5618 :     e = NULL;
    2352       11484 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    2353         248 :         const AVClass *class = avcodec_get_class();
    2354         248 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    2355             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2356         248 :         const AVClass *fclass = avformat_get_class();
    2357         248 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    2358             :                                               AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2359         248 :         if (!option || foption)
    2360          10 :             continue;
    2361             : 
    2362             : 
    2363         247 :         if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
    2364           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    2365             :                    "output file #%d (%s) is not an encoding option.\n", e->key,
    2366           0 :                    option->help ? option->help : "", nb_output_files - 1,
    2367             :                    filename);
    2368           0 :             exit_program(1);
    2369             :         }
    2370             : 
    2371             :         // gop_timecode is injected by generic code but not always used
    2372         247 :         if (!strcmp(e->key, "gop_timecode"))
    2373           8 :             continue;
    2374             : 
    2375         478 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    2376             :                "output file #%d (%s) has not been used for any stream. The most "
    2377             :                "likely reason is either wrong type (e.g. a video option with "
    2378             :                "no video streams) or that it is a private option of some encoder "
    2379             :                "which was not actually used for any stream.\n", e->key,
    2380         239 :                option->help ? option->help : "", nb_output_files - 1, filename);
    2381             :     }
    2382        5618 :     av_dict_free(&unused_opts);
    2383             : 
    2384             :     /* set the decoding_needed flags and create simple filtergraphs */
    2385       11374 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2386        5756 :         OutputStream *ost = output_streams[i];
    2387             : 
    2388        5756 :         if (ost->encoding_needed && ost->source_index >= 0) {
    2389        5433 :             InputStream *ist = input_streams[ost->source_index];
    2390        5433 :             ist->decoding_needed |= DECODING_FOR_OST;
    2391             : 
    2392        6517 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
    2393        1084 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
    2394        5403 :                 err = init_simple_filtergraph(ist, ost);
    2395        5403 :                 if (err < 0) {
    2396           0 :                     av_log(NULL, AV_LOG_ERROR,
    2397             :                            "Error initializing a simple filtergraph between streams "
    2398             :                            "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
    2399           0 :                            nb_output_files - 1, ost->st->index);
    2400           0 :                     exit_program(1);
    2401             :                 }
    2402             :             }
    2403             :         }
    2404             : 
    2405             :         /* set the filter output constraints */
    2406        5756 :         if (ost->filter) {
    2407        5476 :             OutputFilter *f = ost->filter;
    2408             :             int count;
    2409        5476 :             switch (ost->enc_ctx->codec_type) {
    2410        4408 :             case AVMEDIA_TYPE_VIDEO:
    2411        4408 :                 f->frame_rate = ost->frame_rate;
    2412        4408 :                 f->width      = ost->enc_ctx->width;
    2413        4408 :                 f->height     = ost->enc_ctx->height;
    2414        4408 :                 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
    2415        3127 :                     f->format = ost->enc_ctx->pix_fmt;
    2416        1281 :                 } else if (ost->enc->pix_fmts) {
    2417         286 :                     count = 0;
    2418        1736 :                     while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
    2419        1164 :                         count++;
    2420         286 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2421         286 :                     if (!f->formats)
    2422           0 :                         exit_program(1);
    2423         286 :                     memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
    2424             :                 }
    2425        4408 :                 break;
    2426        1068 :             case AVMEDIA_TYPE_AUDIO:
    2427        1068 :                 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
    2428           0 :                     f->format = ost->enc_ctx->sample_fmt;
    2429        1068 :                 } else if (ost->enc->sample_fmts) {
    2430        1068 :                     count = 0;
    2431        3238 :                     while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
    2432        1102 :                         count++;
    2433        1068 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2434        1068 :                     if (!f->formats)
    2435           0 :                         exit_program(1);
    2436        1068 :                     memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
    2437             :                 }
    2438        1068 :                 if (ost->enc_ctx->sample_rate) {
    2439          25 :                     f->sample_rate = ost->enc_ctx->sample_rate;
    2440        1043 :                 } else if (ost->enc->supported_samplerates) {
    2441          21 :                     count = 0;
    2442         246 :                     while (ost->enc->supported_samplerates[count])
    2443         204 :                         count++;
    2444          21 :                     f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
    2445          21 :                     if (!f->sample_rates)
    2446           0 :                         exit_program(1);
    2447          21 :                     memcpy(f->sample_rates, ost->enc->supported_samplerates,
    2448          21 :                            (count + 1) * sizeof(*f->sample_rates));
    2449             :                 }
    2450        1068 :                 if (ost->enc_ctx->channels) {
    2451          12 :                     f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
    2452        1056 :                 } else if (ost->enc->channel_layouts) {
    2453          34 :                     count = 0;
    2454         290 :                     while (ost->enc->channel_layouts[count])
    2455         222 :                         count++;
    2456          34 :                     f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
    2457          34 :                     if (!f->channel_layouts)
    2458           0 :                         exit_program(1);
    2459          34 :                     memcpy(f->channel_layouts, ost->enc->channel_layouts,
    2460          34 :                            (count + 1) * sizeof(*f->channel_layouts));
    2461             :                 }
    2462        1068 :                 break;
    2463             :             }
    2464             :         }
    2465             :     }
    2466             : 
    2467             :     /* check filename in case of an image number is expected */
    2468        5618 :     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
    2469           0 :         if (!av_filename_number_test(oc->url)) {
    2470           0 :             print_error(oc->url, AVERROR(EINVAL));
    2471           0 :             exit_program(1);
    2472             :         }
    2473             :     }
    2474             : 
    2475        5618 :     if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
    2476           0 :         av_log(NULL, AV_LOG_ERROR,
    2477             :                "No input streams but output needs an input stream\n");
    2478           0 :         exit_program(1);
    2479             :     }
    2480             : 
    2481        5618 :     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
    2482             :         /* test if it already exists to avoid losing precious files */
    2483        5573 :         assert_file_overwrite(filename);
    2484             : 
    2485             :         /* open the file */
    2486       11146 :         if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
    2487        5573 :                               &oc->interrupt_callback,
    2488             :                               &of->opts)) < 0) {
    2489           0 :             print_error(filename, err);
    2490           0 :             exit_program(1);
    2491             :         }
    2492          45 :     } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
    2493           0 :         assert_file_overwrite(filename);
    2494             : 
    2495        5618 :     if (o->mux_preload) {
    2496           0 :         av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
    2497             :     }
    2498        5618 :     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
    2499             : 
    2500             :     /* copy metadata */
    2501        5623 :     for (i = 0; i < o->nb_metadata_map; i++) {
    2502             :         char *p;
    2503           5 :         int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
    2504             : 
    2505           5 :         if (in_file_index >= nb_input_files) {
    2506           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
    2507           0 :             exit_program(1);
    2508             :         }
    2509           8 :         copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
    2510             :                       in_file_index >= 0 ?
    2511           3 :                       input_files[in_file_index]->ctx : NULL, o);
    2512             :     }
    2513             : 
    2514             :     /* copy chapters */
    2515        5618 :     if (o->chapters_input_file >= nb_input_files) {
    2516        5618 :         if (o->chapters_input_file == INT_MAX) {
    2517             :             /* copy chapters from the first input file that has them*/
    2518        5618 :             o->chapters_input_file = -1;
    2519       11259 :             for (i = 0; i < nb_input_files; i++)
    2520        5651 :                 if (input_files[i]->ctx->nb_chapters) {
    2521          10 :                     o->chapters_input_file = i;
    2522          10 :                     break;
    2523             :                 }
    2524             :         } else {
    2525           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
    2526             :                    o->chapters_input_file);
    2527           0 :             exit_program(1);
    2528             :         }
    2529             :     }
    2530        5618 :     if (o->chapters_input_file >= 0)
    2531          10 :         copy_chapters(input_files[o->chapters_input_file], of,
    2532          10 :                       !o->metadata_chapters_manual);
    2533             : 
    2534             :     /* copy global metadata by default */
    2535        5618 :     if (!o->metadata_global_manual && nb_input_files){
    2536        5579 :         av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
    2537             :                      AV_DICT_DONT_OVERWRITE);
    2538        5579 :         if(o->recording_time != INT64_MAX)
    2539         110 :             av_dict_set(&oc->metadata, "duration", NULL, 0);
    2540        5579 :         av_dict_set(&oc->metadata, "creation_time", NULL, 0);
    2541             :     }
    2542        5618 :     if (!o->metadata_streams_manual)
    2543       11370 :         for (i = of->ost_index; i < nb_output_streams; i++) {
    2544             :             InputStream *ist;
    2545        5753 :             if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
    2546          74 :                 continue;
    2547        5679 :             ist = input_streams[output_streams[i]->source_index];
    2548        5679 :             av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
    2549        5679 :             if (!output_streams[i]->stream_copy) {
    2550        5430 :                 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
    2551             :             }
    2552             :         }
    2553             : 
    2554             :     /* process manually set programs */
    2555        5618 :     for (i = 0; i < o->nb_program; i++) {
    2556           0 :         const char *p = o->program[i].u.str;
    2557           0 :         int progid = i+1;
    2558             :         AVProgram *program;
    2559             : 
    2560           0 :         while(*p) {
    2561           0 :             const char *p2 = av_get_token(&p, ":");
    2562           0 :             const char *to_dealloc = p2;
    2563             :             char *key;
    2564           0 :             if (!p2)
    2565           0 :                 break;
    2566             : 
    2567           0 :             if(*p) p++;
    2568             : 
    2569           0 :             key = av_get_token(&p2, "=");
    2570           0 :             if (!key || !*p2) {
    2571           0 :                 av_freep(&to_dealloc);
    2572           0 :                 av_freep(&key);
    2573           0 :                 break;
    2574             :             }
    2575           0 :             p2++;
    2576             : 
    2577           0 :             if (!strcmp(key, "program_num"))
    2578           0 :                 progid = strtol(p2, NULL, 0);
    2579           0 :             av_freep(&to_dealloc);
    2580           0 :             av_freep(&key);
    2581             :         }
    2582             : 
    2583           0 :         program = av_new_program(oc, progid);
    2584             : 
    2585           0 :         p = o->program[i].u.str;
    2586           0 :         while(*p) {
    2587           0 :             const char *p2 = av_get_token(&p, ":");
    2588           0 :             const char *to_dealloc = p2;
    2589             :             char *key;
    2590           0 :             if (!p2)
    2591           0 :                 break;
    2592           0 :             if(*p) p++;
    2593             : 
    2594           0 :             key = av_get_token(&p2, "=");
    2595           0 :             if (!key) {
    2596           0 :                 av_log(NULL, AV_LOG_FATAL,
    2597             :                        "No '=' character in program string %s.\n",
    2598             :                        p2);
    2599           0 :                 exit_program(1);
    2600             :             }
    2601           0 :             if (!*p2)
    2602           0 :                 exit_program(1);
    2603           0 :             p2++;
    2604             : 
    2605           0 :             if (!strcmp(key, "title")) {
    2606           0 :                 av_dict_set(&program->metadata, "title", p2, 0);
    2607           0 :             } else if (!strcmp(key, "program_num")) {
    2608           0 :             } else if (!strcmp(key, "st")) {
    2609           0 :                 int st_num = strtol(p2, NULL, 0);
    2610           0 :                 av_program_add_stream_index(oc, progid, st_num);
    2611             :             } else {
    2612           0 :                 av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
    2613           0 :                 exit_program(1);
    2614             :             }
    2615           0 :             av_freep(&to_dealloc);
    2616           0 :             av_freep(&key);
    2617             :         }
    2618             :     }
    2619             : 
    2620             :     /* process manually set metadata */
    2621        5793 :     for (i = 0; i < o->nb_metadata; i++) {
    2622             :         AVDictionary **m;
    2623             :         char type, *val;
    2624             :         const char *stream_spec;
    2625         175 :         int index = 0, j, ret = 0;
    2626             : 
    2627         175 :         val = strchr(o->metadata[i].u.str, '=');
    2628         175 :         if (!val) {
    2629           0 :             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
    2630           0 :                    o->metadata[i].u.str);
    2631           0 :             exit_program(1);
    2632             :         }
    2633         175 :         *val++ = 0;
    2634             : 
    2635         175 :         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
    2636         175 :         if (type == 's') {
    2637          19 :             for (j = 0; j < oc->nb_streams; j++) {
    2638          11 :                 ost = output_streams[nb_output_streams - oc->nb_streams + j];
    2639          11 :                 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
    2640           8 :                     if (!strcmp(o->metadata[i].u.str, "rotate")) {
    2641             :                         char *tail;
    2642           1 :                         double theta = av_strtod(val, &tail);
    2643           1 :                         if (!*tail) {
    2644           1 :                             ost->rotate_overridden = 1;
    2645           1 :                             ost->rotate_override_value = theta;
    2646             :                         }
    2647             :                     } else {
    2648           7 :                         av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
    2649             :                     }
    2650           3 :                 } else if (ret < 0)
    2651           0 :                     exit_program(1);
    2652             :             }
    2653             :         }
    2654             :         else {
    2655         167 :             switch (type) {
    2656         167 :             case 'g':
    2657         167 :                 m = &oc->metadata;
    2658         167 :                 break;
    2659           0 :             case 'c':
    2660           0 :                 if (index < 0 || index >= oc->nb_chapters) {
    2661           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
    2662           0 :                     exit_program(1);
    2663             :                 }
    2664           0 :                 m = &oc->chapters[index]->metadata;
    2665           0 :                 break;
    2666           0 :             case 'p':
    2667           0 :                 if (index < 0 || index >= oc->nb_programs) {
    2668           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
    2669           0 :                     exit_program(1);
    2670             :                 }
    2671           0 :                 m = &oc->programs[index]->metadata;
    2672           0 :                 break;
    2673           0 :             default:
    2674           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
    2675           0 :                 exit_program(1);
    2676             :             }
    2677         167 :             av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
    2678             :         }
    2679             :     }
    2680             : 
    2681        5618 :     return 0;
    2682             : }
    2683             : 
    2684           0 : static int opt_target(void *optctx, const char *opt, const char *arg)
    2685             : {
    2686           0 :     OptionsContext *o = optctx;
    2687           0 :     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
    2688             :     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
    2689             : 
    2690           0 :     if (!strncmp(arg, "pal-", 4)) {
    2691           0 :         norm = PAL;
    2692           0 :         arg += 4;
    2693           0 :     } else if (!strncmp(arg, "ntsc-", 5)) {
    2694           0 :         norm = NTSC;
    2695           0 :         arg += 5;
    2696           0 :     } else if (!strncmp(arg, "film-", 5)) {
    2697           0 :         norm = FILM;
    2698           0 :         arg += 5;
    2699             :     } else {
    2700             :         /* Try to determine PAL/NTSC by peeking in the input files */
    2701           0 :         if (nb_input_files) {
    2702             :             int i, j, fr;
    2703           0 :             for (j = 0; j < nb_input_files; j++) {
    2704           0 :                 for (i = 0; i < input_files[j]->nb_streams; i++) {
    2705           0 :                     AVStream *st = input_files[j]->ctx->streams[i];
    2706           0 :                     if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
    2707           0 :                         continue;
    2708           0 :                     fr = st->time_base.den * 1000 / st->time_base.num;
    2709           0 :                     if (fr == 25000) {
    2710           0 :                         norm = PAL;
    2711           0 :                         break;
    2712           0 :                     } else if ((fr == 29970) || (fr == 23976)) {
    2713           0 :                         norm = NTSC;
    2714           0 :                         break;
    2715             :                     }
    2716             :                 }
    2717           0 :                 if (norm != UNKNOWN)
    2718           0 :                     break;
    2719             :             }
    2720             :         }
    2721           0 :         if (norm != UNKNOWN)
    2722           0 :             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
    2723             :     }
    2724             : 
    2725           0 :     if (norm == UNKNOWN) {
    2726           0 :         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
    2727           0 :         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
    2728           0 :         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
    2729           0 :         exit_program(1);
    2730             :     }
    2731             : 
    2732           0 :     if (!strcmp(arg, "vcd")) {
    2733           0 :         opt_video_codec(o, "c:v", "mpeg1video");
    2734           0 :         opt_audio_codec(o, "c:a", "mp2");
    2735           0 :         parse_option(o, "f", "vcd", options);
    2736             : 
    2737           0 :         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
    2738           0 :         parse_option(o, "r", frame_rates[norm], options);
    2739           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2740             : 
    2741           0 :         opt_default(NULL, "b:v", "1150000");
    2742           0 :         opt_default(NULL, "maxrate:v", "1150000");
    2743           0 :         opt_default(NULL, "minrate:v", "1150000");
    2744           0 :         opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
    2745             : 
    2746           0 :         opt_default(NULL, "b:a", "224000");
    2747           0 :         parse_option(o, "ar", "44100", options);
    2748           0 :         parse_option(o, "ac", "2", options);
    2749             : 
    2750           0 :         opt_default(NULL, "packetsize", "2324");
    2751           0 :         opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
    2752             : 
    2753             :         /* We have to offset the PTS, so that it is consistent with the SCR.
    2754             :            SCR starts at 36000, but the first two packs contain only padding
    2755             :            and the first pack from the other stream, respectively, may also have
    2756             :            been written before.
    2757             :            So the real data starts at SCR 36000+3*1200. */
    2758           0 :         o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
    2759           0 :     } else if (!strcmp(arg, "svcd")) {
    2760             : 
    2761           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2762           0 :         opt_audio_codec(o, "c:a", "mp2");
    2763           0 :         parse_option(o, "f", "svcd", options);
    2764             : 
    2765           0 :         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
    2766           0 :         parse_option(o, "r", frame_rates[norm], options);
    2767           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2768           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2769             : 
    2770           0 :         opt_default(NULL, "b:v", "2040000");
    2771           0 :         opt_default(NULL, "maxrate:v", "2516000");
    2772           0 :         opt_default(NULL, "minrate:v", "0"); // 1145000;
    2773           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2774           0 :         opt_default(NULL, "scan_offset", "1");
    2775             : 
    2776           0 :         opt_default(NULL, "b:a", "224000");
    2777           0 :         parse_option(o, "ar", "44100", options);
    2778             : 
    2779           0 :         opt_default(NULL, "packetsize", "2324");
    2780             : 
    2781           0 :     } else if (!strcmp(arg, "dvd")) {
    2782             : 
    2783           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2784           0 :         opt_audio_codec(o, "c:a", "ac3");
    2785           0 :         parse_option(o, "f", "dvd", options);
    2786             : 
    2787           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2788           0 :         parse_option(o, "r", frame_rates[norm], options);
    2789           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2790           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2791             : 
    2792           0 :         opt_default(NULL, "b:v", "6000000");
    2793           0 :         opt_default(NULL, "maxrate:v", "9000000");
    2794           0 :         opt_default(NULL, "minrate:v", "0"); // 1500000;
    2795           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2796             : 
    2797           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.
    2798           0 :         opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
    2799             : 
    2800           0 :         opt_default(NULL, "b:a", "448000");
    2801           0 :         parse_option(o, "ar", "48000", options);
    2802             : 
    2803           0 :     } else if (!strncmp(arg, "dv", 2)) {
    2804             : 
    2805           0 :         parse_option(o, "f", "dv", options);
    2806             : 
    2807           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2808           0 :         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
    2809           0 :                           norm == PAL ? "yuv420p" : "yuv411p", options);
    2810           0 :         parse_option(o, "r", frame_rates[norm], options);
    2811             : 
    2812           0 :         parse_option(o, "ar", "48000", options);
    2813           0 :         parse_option(o, "ac", "2", options);
    2814             : 
    2815             :     } else {
    2816           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
    2817           0 :         return AVERROR(EINVAL);
    2818             :     }
    2819             : 
    2820           0 :     av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
    2821           0 :     av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
    2822             : 
    2823           0 :     return 0;
    2824             : }
    2825             : 
    2826           0 : static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
    2827             : {
    2828           0 :     av_free (vstats_filename);
    2829           0 :     vstats_filename = av_strdup (arg);
    2830           0 :     return 0;
    2831             : }
    2832             : 
    2833           0 : static int opt_vstats(void *optctx, const char *opt, const char *arg)
    2834             : {
    2835             :     char filename[40];
    2836           0 :     time_t today2 = time(NULL);
    2837           0 :     struct tm *today = localtime(&today2);
    2838             : 
    2839           0 :     if (!today) { // maybe tomorrow
    2840           0 :         av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
    2841           0 :         exit_program(1);
    2842             :     }
    2843             : 
    2844           0 :     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
    2845             :              today->tm_sec);
    2846           0 :     return opt_vstats_file(NULL, opt, filename);
    2847             : }
    2848             : 
    2849           0 : static int opt_video_frames(void *optctx, const char *opt, const char *arg)
    2850             : {
    2851           0 :     OptionsContext *o = optctx;
    2852           0 :     return parse_option(o, "frames:v", arg, options);
    2853             : }
    2854             : 
    2855           0 : static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
    2856             : {
    2857           0 :     OptionsContext *o = optctx;
    2858           0 :     return parse_option(o, "frames:a", arg, options);
    2859             : }
    2860             : 
    2861           0 : static int opt_data_frames(void *optctx, const char *opt, const char *arg)
    2862             : {
    2863           0 :     OptionsContext *o = optctx;
    2864           0 :     return parse_option(o, "frames:d", arg, options);
    2865             : }
    2866             : 
    2867           2 : static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
    2868             : {
    2869             :     int ret;
    2870           2 :     AVDictionary *cbak = codec_opts;
    2871           2 :     AVDictionary *fbak = format_opts;
    2872           2 :     codec_opts = NULL;
    2873           2 :     format_opts = NULL;
    2874             : 
    2875           2 :     ret = opt_default(NULL, opt, arg);
    2876             : 
    2877           2 :     av_dict_copy(&o->g->codec_opts , codec_opts, 0);
    2878           2 :     av_dict_copy(&o->g->format_opts, format_opts, 0);
    2879           2 :     av_dict_free(&codec_opts);
    2880           2 :     av_dict_free(&format_opts);
    2881           2 :     codec_opts = cbak;
    2882           2 :     format_opts = fbak;
    2883             : 
    2884           2 :     return ret;
    2885             : }
    2886             : 
    2887           0 : static int opt_preset(void *optctx, const char *opt, const char *arg)
    2888             : {
    2889           0 :     OptionsContext *o = optctx;
    2890           0 :     FILE *f=NULL;
    2891             :     char filename[1000], line[1000], tmp_line[1000];
    2892           0 :     const char *codec_name = NULL;
    2893             : 
    2894           0 :     tmp_line[0] = *opt;
    2895           0 :     tmp_line[1] = 0;
    2896           0 :     MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
    2897             : 
    2898           0 :     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
    2899           0 :         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
    2900           0 :             av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
    2901             :         }else
    2902           0 :             av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
    2903           0 :         exit_program(1);
    2904             :     }
    2905             : 
    2906           0 :     while (fgets(line, sizeof(line), f)) {
    2907           0 :         char *key = tmp_line, *value, *endptr;
    2908             : 
    2909           0 :         if (strcspn(line, "#\n\r") == 0)
    2910           0 :             continue;
    2911           0 :         av_strlcpy(tmp_line, line, sizeof(tmp_line));
    2912           0 :         if (!av_strtok(key,   "=",    &value) ||
    2913           0 :             !av_strtok(value, "\r\n", &endptr)) {
    2914           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
    2915           0 :             exit_program(1);
    2916             :         }
    2917           0 :         av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
    2918             : 
    2919           0 :         if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
    2920           0 :         else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
    2921           0 :         else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
    2922           0 :         else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
    2923           0 :         else if (opt_default_new(o, key, value) < 0) {
    2924           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
    2925             :                    filename, line, key, value);
    2926           0 :             exit_program(1);
    2927             :         }
    2928             :     }
    2929             : 
    2930           0 :     fclose(f);
    2931             : 
    2932           0 :     return 0;
    2933             : }
    2934             : 
    2935           3 : static int opt_old2new(void *optctx, const char *opt, const char *arg)
    2936             : {
    2937           3 :     OptionsContext *o = optctx;
    2938           3 :     char *s = av_asprintf("%s:%c", opt + 1, *opt);
    2939           3 :     int ret = parse_option(o, s, arg, options);
    2940           3 :     av_free(s);
    2941           3 :     return ret;
    2942             : }
    2943             : 
    2944         162 : static int opt_bitrate(void *optctx, const char *opt, const char *arg)
    2945             : {
    2946         162 :     OptionsContext *o = optctx;
    2947             : 
    2948         162 :     if(!strcmp(opt, "ab")){
    2949          11 :         av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
    2950          11 :         return 0;
    2951         151 :     } else if(!strcmp(opt, "b")){
    2952          39 :         av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
    2953          39 :         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
    2954          39 :         return 0;
    2955             :     }
    2956         112 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    2957         112 :     return 0;
    2958             : }
    2959             : 
    2960         246 : static int opt_qscale(void *optctx, const char *opt, const char *arg)
    2961             : {
    2962         246 :     OptionsContext *o = optctx;
    2963             :     char *s;
    2964             :     int ret;
    2965         246 :     if(!strcmp(opt, "qscale")){
    2966         208 :         av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
    2967         208 :         return parse_option(o, "q:v", arg, options);
    2968             :     }
    2969          38 :     s = av_asprintf("q%s", opt + 6);
    2970          38 :     ret = parse_option(o, s, arg, options);
    2971          38 :     av_free(s);
    2972          38 :     return ret;
    2973             : }
    2974             : 
    2975          45 : static int opt_profile(void *optctx, const char *opt, const char *arg)
    2976             : {
    2977          45 :     OptionsContext *o = optctx;
    2978          45 :     if(!strcmp(opt, "profile")){
    2979           4 :         av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
    2980           4 :         av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
    2981           4 :         return 0;
    2982             :     }
    2983          41 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    2984          41 :     return 0;
    2985             : }
    2986             : 
    2987        2042 : static int opt_video_filters(void *optctx, const char *opt, const char *arg)
    2988             : {
    2989        2042 :     OptionsContext *o = optctx;
    2990        2042 :     return parse_option(o, "filter:v", arg, options);
    2991             : }
    2992             : 
    2993         377 : static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
    2994             : {
    2995         377 :     OptionsContext *o = optctx;
    2996         377 :     return parse_option(o, "filter:a", arg, options);
    2997             : }
    2998             : 
    2999         775 : static int opt_vsync(void *optctx, const char *opt, const char *arg)
    3000             : {
    3001         775 :     if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
    3002         771 :     else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
    3003         770 :     else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
    3004         769 :     else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
    3005             : 
    3006         775 :     if (video_sync_method == VSYNC_AUTO)
    3007         447 :         video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
    3008         775 :     return 0;
    3009             : }
    3010             : 
    3011          15 : static int opt_timecode(void *optctx, const char *opt, const char *arg)
    3012             : {
    3013          15 :     OptionsContext *o = optctx;
    3014          15 :     char *tcr = av_asprintf("timecode=%s", arg);
    3015          15 :     int ret = parse_option(o, "metadata:g", tcr, options);
    3016          15 :     if (ret >= 0)
    3017          15 :         ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
    3018          15 :     av_free(tcr);
    3019          15 :     return ret;
    3020             : }
    3021             : 
    3022           2 : static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
    3023             : {
    3024           2 :     OptionsContext *o = optctx;
    3025             :     char layout_str[32];
    3026             :     char *stream_str;
    3027             :     char *ac_str;
    3028             :     int ret, channels, ac_str_size;
    3029             :     uint64_t layout;
    3030             : 
    3031           2 :     layout = av_get_channel_layout(arg);
    3032           2 :     if (!layout) {
    3033           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
    3034           0 :         return AVERROR(EINVAL);
    3035             :     }
    3036           2 :     snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
    3037           2 :     ret = opt_default_new(o, opt, layout_str);
    3038           2 :     if (ret < 0)
    3039           0 :         return ret;
    3040             : 
    3041             :     /* set 'ac' option based on channel layout */
    3042           2 :     channels = av_get_channel_layout_nb_channels(layout);
    3043           2 :     snprintf(layout_str, sizeof(layout_str), "%d", channels);
    3044           2 :     stream_str = strchr(opt, ':');
    3045           2 :     ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
    3046           2 :     ac_str = av_mallocz(ac_str_size);
    3047           2 :     if (!ac_str)
    3048           0 :         return AVERROR(ENOMEM);
    3049           2 :     av_strlcpy(ac_str, "ac", 3);
    3050           2 :     if (stream_str)
    3051           0 :         av_strlcat(ac_str, stream_str, ac_str_size);
    3052           2 :     ret = parse_option(o, ac_str, layout_str, options);
    3053           2 :     av_free(ac_str);
    3054             : 
    3055           2 :     return ret;
    3056             : }
    3057             : 
    3058           0 : static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
    3059             : {
    3060           0 :     OptionsContext *o = optctx;
    3061           0 :     return parse_option(o, "q:a", arg, options);
    3062             : }
    3063             : 
    3064          50 : static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
    3065             : {
    3066          50 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3067          50 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3068           0 :         return AVERROR(ENOMEM);
    3069          50 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3070          50 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
    3071          50 :     if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
    3072           0 :         return AVERROR(ENOMEM);
    3073             : 
    3074          50 :     input_stream_potentially_available = 1;
    3075             : 
    3076          50 :     return 0;
    3077             : }
    3078             : 
    3079          21 : static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
    3080             : {
    3081          21 :     uint8_t *graph_desc = read_file(arg);
    3082          21 :     if (!graph_desc)
    3083           0 :         return AVERROR(EINVAL);
    3084             : 
    3085          21 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3086          21 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3087           0 :         return AVERROR(ENOMEM);
    3088          21 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3089          21 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
    3090             : 
    3091          21 :     input_stream_potentially_available = 1;
    3092             : 
    3093          21 :     return 0;
    3094             : }
    3095             : 
    3096           0 : void show_help_default(const char *opt, const char *arg)
    3097             : {
    3098             :     /* per-file options have at least one of those set */
    3099           0 :     const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
    3100           0 :     int show_advanced = 0, show_avoptions = 0;
    3101             : 
    3102           0 :     if (opt && *opt) {
    3103           0 :         if (!strcmp(opt, "long"))
    3104           0 :             show_advanced = 1;
    3105           0 :         else if (!strcmp(opt, "full"))
    3106           0 :             show_advanced = show_avoptions = 1;
    3107             :         else
    3108           0 :             av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
    3109             :     }
    3110             : 
    3111           0 :     show_usage();
    3112             : 
    3113           0 :     printf("Getting help:\n"
    3114             :            "    -h      -- print basic options\n"
    3115             :            "    -h long -- print more options\n"
    3116             :            "    -h full -- print all options (including all format and codec specific options, very long)\n"
    3117             :            "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf\n"
    3118             :            "    See man %s for detailed description of the options.\n"
    3119             :            "\n", program_name);
    3120             : 
    3121           0 :     show_help_options(options, "Print help / information / capabilities:",
    3122             :                       OPT_EXIT, 0, 0);
    3123             : 
    3124           0 :     show_help_options(options, "Global options (affect whole program "
    3125             :                       "instead of just one file:",
    3126             :                       0, per_file | OPT_EXIT | OPT_EXPERT, 0);
    3127           0 :     if (show_advanced)
    3128           0 :         show_help_options(options, "Advanced global options:", OPT_EXPERT,
    3129             :                           per_file | OPT_EXIT, 0);
    3130             : 
    3131           0 :     show_help_options(options, "Per-file main options:", 0,
    3132             :                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
    3133             :                       OPT_EXIT, per_file);
    3134           0 :     if (show_advanced)
    3135           0 :         show_help_options(options, "Advanced per-file options:",
    3136             :                           OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
    3137             : 
    3138           0 :     show_help_options(options, "Video options:",
    3139             :                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
    3140           0 :     if (show_advanced)
    3141           0 :         show_help_options(options, "Advanced Video options:",
    3142             :                           OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
    3143             : 
    3144           0 :     show_help_options(options, "Audio options:",
    3145             :                       OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
    3146           0 :     if (show_advanced)
    3147           0 :         show_help_options(options, "Advanced Audio options:",
    3148             :                           OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
    3149           0 :     show_help_options(options, "Subtitle options:",
    3150             :                       OPT_SUBTITLE, 0, 0);
    3151           0 :     printf("\n");
    3152             : 
    3153           0 :     if (show_avoptions) {
    3154           0 :         int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
    3155           0 :         show_help_children(avcodec_get_class(), flags);
    3156           0 :         show_help_children(avformat_get_class(), flags);
    3157             : #if CONFIG_SWSCALE
    3158           0 :         show_help_children(sws_get_class(), flags);
    3159             : #endif
    3160             : #if CONFIG_SWRESAMPLE
    3161           0 :         show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
    3162             : #endif
    3163           0 :         show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
    3164           0 :         show_help_children(av_bsf_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_BSF_PARAM);
    3165             :     }
    3166           0 : }
    3167             : 
    3168           0 : void show_usage(void)
    3169             : {
    3170           0 :     av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
    3171           0 :     av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
    3172           0 :     av_log(NULL, AV_LOG_INFO, "\n");
    3173           0 : }
    3174             : 
    3175             : enum OptGroup {
    3176             :     GROUP_OUTFILE,
    3177             :     GROUP_INFILE,
    3178             : };
    3179             : 
    3180             : static const OptionGroupDef groups[] = {
    3181             :     [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
    3182             :     [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
    3183             : };
    3184             : 
    3185       11234 : static int open_files(OptionGroupList *l, const char *inout,
    3186             :                       int (*open_file)(OptionsContext*, const char*))
    3187             : {
    3188             :     int i, ret;
    3189             : 
    3190       45004 :     for (i = 0; i < l->nb_groups; i++) {
    3191       11268 :         OptionGroup *g = &l->groups[i];
    3192             :         OptionsContext o;
    3193             : 
    3194       11268 :         init_options(&o);
    3195       11268 :         o.g = g;
    3196             : 
    3197       11268 :         ret = parse_optgroup(&o, g);
    3198       11268 :         if (ret < 0) {
    3199           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
    3200             :                    "%s.\n", inout, g->arg);
    3201           0 :             return ret;
    3202             :         }
    3203             : 
    3204       11268 :         av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
    3205       11268 :         ret = open_file(&o, g->arg);
    3206       11268 :         uninit_options(&o);
    3207       11268 :         if (ret < 0) {
    3208           0 :             av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
    3209             :                    inout, g->arg);
    3210           0 :             return ret;
    3211             :         }
    3212       11268 :         av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
    3213             :     }
    3214             : 
    3215       11234 :     return 0;
    3216             : }
    3217             : 
    3218        5618 : int ffmpeg_parse_options(int argc, char **argv)
    3219             : {
    3220             :     OptionParseContext octx;
    3221             :     uint8_t error[128];
    3222             :     int ret;
    3223             : 
    3224        5618 :     memset(&octx, 0, sizeof(octx));
    3225             : 
    3226             :     /* split the commandline into an internal representation */
    3227        5618 :     ret = split_commandline(&octx, argc, argv, options, groups,
    3228             :                             FF_ARRAY_ELEMS(groups));
    3229        5618 :     if (ret < 0) {
    3230           0 :         av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
    3231           0 :         goto fail;
    3232             :     }
    3233             : 
    3234             :     /* apply global options */
    3235        5618 :     ret = parse_optgroup(NULL, &octx.global_opts);
    3236        5617 :     if (ret < 0) {
    3237           0 :         av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
    3238           0 :         goto fail;
    3239             :     }
    3240             : 
    3241             :     /* configure terminal and setup signal handlers */
    3242        5617 :     term_init();
    3243             : 
    3244             :     /* open input files */
    3245        5617 :     ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
    3246        5617 :     if (ret < 0) {
    3247           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
    3248           0 :         goto fail;
    3249             :     }
    3250             : 
    3251             :     /* create the complex filtergraphs */
    3252        5617 :     ret = init_complex_filters();
    3253        5617 :     if (ret < 0) {
    3254           0 :         av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
    3255           0 :         goto fail;
    3256             :     }
    3257             : 
    3258             :     /* open output files */
    3259        5617 :     ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
    3260        5617 :     if (ret < 0) {
    3261           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
    3262           0 :         goto fail;
    3263             :     }
    3264             : 
    3265        5617 :     check_filter_outputs();
    3266             : 
    3267        5617 : fail:
    3268        5617 :     uninit_parse_context(&octx);
    3269        5617 :     if (ret < 0) {
    3270           0 :         av_strerror(ret, error, sizeof(error));
    3271           0 :         av_log(NULL, AV_LOG_FATAL, "%s\n", error);
    3272             :     }
    3273        5617 :     return ret;
    3274             : }
    3275             : 
    3276           0 : static int opt_progress(void *optctx, const char *opt, const char *arg)
    3277             : {
    3278           0 :     AVIOContext *avio = NULL;
    3279             :     int ret;
    3280             : 
    3281           0 :     if (!strcmp(arg, "-"))
    3282           0 :         arg = "pipe:";
    3283           0 :     ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
    3284           0 :     if (ret < 0) {
    3285           0 :         av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
    3286           0 :                arg, av_err2str(ret));
    3287           0 :         return ret;
    3288             :     }
    3289           0 :     progress_avio = avio;
    3290           0 :     return 0;
    3291             : }
    3292             : 
    3293             : #define OFFSET(x) offsetof(OptionsContext, x)
    3294             : const OptionDef options[] = {
    3295             :     /* main options */
    3296             :     CMDUTILS_COMMON_OPTIONS
    3297             :     { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
    3298             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
    3299             :         "force format", "fmt" },
    3300             :     { "y",              OPT_BOOL,                                    {              &file_overwrite },
    3301             :         "overwrite output files" },
    3302             :     { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
    3303             :         "never overwrite output files" },
    3304             :     { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
    3305             :         "Ignore unknown stream types" },
    3306             :     { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
    3307             :         "Copy unknown stream types" },
    3308             :     { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
    3309             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3310             :         "codec name", "codec" },
    3311             :     { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
    3312             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3313             :         "codec name", "codec" },
    3314             :     { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
    3315             :                         OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
    3316             :         "preset name", "preset" },
    3317             :     { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3318             :                         OPT_OUTPUT,                                  { .func_arg = opt_map },
    3319             :         "set input stream mapping",
    3320             :         "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
    3321             :     { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
    3322             :         "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
    3323             :     { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
    3324             :                         OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
    3325             :         "set metadata information of outfile from infile",
    3326             :         "outfile[,metadata]:infile[,metadata]" },
    3327             :     { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
    3328             :                         OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
    3329             :         "set chapters mapping", "input_file_index" },
    3330             :     { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
    3331             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
    3332             :         "record or transcode \"duration\" seconds of audio/video",
    3333             :         "duration" },
    3334             :     { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
    3335             :         "record or transcode stop time", "time_stop" },
    3336             :     { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
    3337             :         "set the limit file size in bytes", "limit_size" },
    3338             :     { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
    3339             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
    3340             :         "set the start time offset", "time_off" },
    3341             :     { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
    3342             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time_eof) },
    3343             :         "set the start time offset relative to EOF", "time_off" },
    3344             :     { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
    3345             :                         OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
    3346             :         "enable/disable seeking by timestamp with -ss" },
    3347             :     { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
    3348             :                         OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
    3349             :         "enable/disable accurate seeking with -ss" },
    3350             :     { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
    3351             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
    3352             :         "set the input ts offset", "time_off" },
    3353             :     { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
    3354             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
    3355             :         "set the input ts scale", "scale" },
    3356             :     { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
    3357             :         "set the recording timestamp ('now' to set the current time)", "time" },
    3358             :     { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
    3359             :         "add metadata", "string=string" },
    3360             :     { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
    3361             :         "add program with specified streams", "title=string:st=number..." },
    3362             :     { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3363             :                         OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
    3364             :         "set the number of data frames to output", "number" },
    3365             :     { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
    3366             :         "add timings for benchmarking" },
    3367             :     { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
    3368             :       "add timings for each task" },
    3369             :     { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
    3370             :       "write program-readable progress information", "url" },
    3371             :     { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
    3372             :       "enable or disable interaction on standard input" },
    3373             :     { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
    3374             :         "set max runtime in seconds", "limit" },
    3375             :     { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
    3376             :         "dump each input packet" },
    3377             :     { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
    3378             :         "when dumping packets, also dump the payload" },
    3379             :     { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3380             :                         OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
    3381             :         "read input at native frame rate", "" },
    3382             :     { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
    3383             :         "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
    3384             :         "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
    3385             :     { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
    3386             :         "video sync method", "" },
    3387             :     { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
    3388             :         "frame drop threshold", "" },
    3389             :     { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
    3390             :         "audio sync method", "" },
    3391             :     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
    3392             :         "audio drift threshold", "threshold" },
    3393             :     { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
    3394             :         "copy timestamps" },
    3395             :     { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
    3396             :         "shift input timestamps to start at 0 when using copyts" },
    3397             :     { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
    3398             :         "copy input stream time base when stream copying", "mode" },
    3399             :     { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3400             :                         OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
    3401             :         "finish encoding within shortest input" },
    3402             :     { "bitexact",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3403             :                         OPT_OUTPUT | OPT_INPUT,                      { .off = OFFSET(bitexact) },
    3404             :         "bitexact mode" },
    3405             :     { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
    3406             :                         OPT_OUTPUT,                                  { .off = OFFSET(apad) },
    3407             :         "audio pad", "" },
    3408             :     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
    3409             :         "timestamp discontinuity delta threshold", "threshold" },
    3410             :     { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
    3411             :         "timestamp error delta threshold", "threshold" },
    3412             :     { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
    3413             :         "exit on error", "error" },
    3414             :     { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
    3415             :         "abort on the specified condition flags", "flags" },
    3416             :     { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
    3417             :                         OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
    3418             :         "copy initial non-keyframes" },
    3419             :     { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
    3420             :         "copy or discard frames before start time" },
    3421             :     { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
    3422             :         "set the number of frames to output", "number" },
    3423             :     { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
    3424             :                         OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
    3425             :         "force codec tag/fourcc", "fourcc/tag" },
    3426             :     { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
    3427             :                         OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
    3428             :         "use fixed quality scale (VBR)", "q" },
    3429             :     { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3430             :                         OPT_OUTPUT,                                  { .func_arg = opt_qscale },
    3431             :         "use fixed quality scale (VBR)", "q" },
    3432             :     { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
    3433             :         "set profile", "profile" },
    3434             :     { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
    3435             :         "set stream filtergraph", "filter_graph" },
    3436             :     { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
    3437             :         "number of non-complex filter threads" },
    3438             :     { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
    3439             :         "read stream filtergraph description from a file", "filename" },
    3440             :     { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
    3441             :         "reinit filtergraph on input parameter changes", "" },
    3442             :     { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3443             :         "create a complex filtergraph", "graph_description" },
    3444             :     { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
    3445             :         "number of threads for -filter_complex" },
    3446             :     { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3447             :         "create a complex filtergraph", "graph_description" },
    3448             :     { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
    3449             :         "read complex filtergraph description from a file", "filename" },
    3450             :     { "stats",          OPT_BOOL,                                    { &print_stats },
    3451             :         "print progress report during encoding", },
    3452             :     { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3453             :                         OPT_OUTPUT,                                  { .func_arg = opt_attach },
    3454             :         "add an attachment to the output file", "filename" },
    3455             :     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
    3456             :                          OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
    3457             :         "extract an attachment into a file", "filename" },
    3458             :     { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
    3459             :                         OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
    3460             :     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
    3461             :         "print timestamp debugging info" },
    3462             :     { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
    3463             :         "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.", "maximum error rate" },
    3464             :     { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
    3465             :                         OPT_INPUT,                                   { .off = OFFSET(discard) },
    3466             :         "discard", "" },
    3467             :     { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
    3468             :                         OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
    3469             :         "disposition", "" },
    3470             :     { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
    3471             :                                                                      { .off = OFFSET(thread_queue_size) },
    3472             :         "set the maximum number of queued packets from the demuxer" },
    3473             :     { "find_stream_info", OPT_BOOL | OPT_PERFILE | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
    3474             :         "read and decode the streams to fill missing information with heuristics" },
    3475             : 
    3476             :     /* video options */
    3477             :     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
    3478             :         "set the number of video frames to output", "number" },
    3479             :     { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3480             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
    3481             :         "set frame rate (Hz value, fraction or abbreviation)", "rate" },
    3482             :     { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
    3483             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
    3484             :         "set frame size (WxH or abbreviation)", "size" },
    3485             :     { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3486             :                       OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
    3487             :         "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
    3488             :     { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3489             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
    3490             :         "set pixel format", "format" },
    3491             :     { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
    3492             :         "set the number of bits per raw sample", "number" },
    3493             :     { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
    3494             :         "deprecated use -g 1" },
    3495             :     { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
    3496             :         "disable video" },
    3497             :     { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3498             :                       OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
    3499             :         "rate control override for specific intervals", "override" },
    3500             :     { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
    3501             :                       OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
    3502             :         "force video codec ('copy' to copy stream)", "codec" },
    3503             :     { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3504             :         "Removed" },
    3505             :     { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3506             :         "Removed" },
    3507             :     { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
    3508             :         "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
    3509             :     { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
    3510             :         "select the pass number (1 to 3)", "n" },
    3511             :     { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
    3512             :                       OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
    3513             :         "select two pass log file name prefix", "prefix" },
    3514             :     { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
    3515             :         "this option is deprecated, use the yadif filter instead" },
    3516             :     { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
    3517             :         "calculate PSNR of compressed frames" },
    3518             :     { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
    3519             :         "dump video coding statistics to file" },
    3520             :     { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
    3521             :         "dump video coding statistics to file", "file" },
    3522             :     { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
    3523             :         "Version of the vstats format to use."},
    3524             :     { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
    3525             :         "set video filters", "filter_graph" },
    3526             :     { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3527             :                       OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
    3528             :         "specify intra matrix coeffs", "matrix" },
    3529             :     { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3530             :                       OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
    3531             :         "specify inter matrix coeffs", "matrix" },
    3532             :     { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3533             :                       OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
    3534             :         "specify intra matrix coeffs", "matrix" },
    3535             :     { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
    3536             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
    3537             :         "top=1/bottom=0/auto=-1 field first", "" },
    3538             :     { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
    3539             :                       OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
    3540             :         "force video tag/fourcc", "fourcc/tag" },
    3541             :     { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
    3542             :         "show QP histogram" },
    3543             :     { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
    3544             :                       OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
    3545             :         "force the selected framerate, disable the best supported framerate selection" },
    3546             :     { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3547             :                       OPT_OUTPUT,                                                { .func_arg = opt_streamid },
    3548             :         "set the value of an outfile streamid", "streamIndex:value" },
    3549             :     { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3550             :                           OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
    3551             :         "force key frames at specified timestamps", "timestamps" },
    3552             :     { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3553             :         "audio bitrate (please use -b:a)", "bitrate" },
    3554             :     { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3555             :         "video bitrate (please use -b:v)", "bitrate" },
    3556             :     { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3557             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
    3558             :         "use HW accelerated decoding", "hwaccel name" },
    3559             :     { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3560             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
    3561             :         "select a device for HW acceleration", "devicename" },
    3562             :     { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3563             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
    3564             :         "select output format used with HW accelerated decoding", "format" },
    3565             : #if CONFIG_VIDEOTOOLBOX
    3566             :     { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
    3567             : #endif
    3568             :     { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
    3569             :         "show available HW acceleration methods" },
    3570             :     { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
    3571             :                           OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
    3572             :         "automatically insert correct rotate filters" },
    3573             : 
    3574             :     /* audio options */
    3575             :     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
    3576             :         "set the number of audio frames to output", "number" },
    3577             :     { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
    3578             :         "set audio quality (codec-specific)", "quality", },
    3579             :     { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3580             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
    3581             :         "set audio sampling rate (in Hz)", "rate" },
    3582             :     { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3583             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
    3584             :         "set number of audio channels", "channels" },
    3585             :     { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
    3586             :         "disable audio" },
    3587             :     { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
    3588             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
    3589             :         "force audio codec ('copy' to copy stream)", "codec" },
    3590             :     { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3591             :                         OPT_OUTPUT,                                                { .func_arg = opt_old2new },
    3592             :         "force audio tag/fourcc", "fourcc/tag" },
    3593             :     { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
    3594             :         "change audio volume (256=normal)" , "volume" },
    3595             :     { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
    3596             :                         OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
    3597             :         "set sample format", "format" },
    3598             :     { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3599             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
    3600             :         "set channel layout", "layout" },
    3601             :     { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
    3602             :         "set audio filters", "filter_graph" },
    3603             :     { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
    3604             :       "set the maximum number of channels to try to guess the channel layout" },
    3605             : 
    3606             :     /* subtitle options */
    3607             :     { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
    3608             :         "disable subtitle" },
    3609             :     { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
    3610             :         "force subtitle codec ('copy' to copy stream)", "codec" },
    3611             :     { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
    3612             :         , "force subtitle tag/fourcc", "fourcc/tag" },
    3613             :     { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
    3614             :         "fix subtitles duration" },
    3615             :     { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
    3616             :         "set canvas size (WxH or abbreviation)", "size" },
    3617             : 
    3618             :     /* grab options */
    3619             :     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
    3620             :         "deprecated, use -channel", "channel" },
    3621             :     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
    3622             :         "deprecated, use -standard", "standard" },
    3623             :     { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
    3624             : 
    3625             :     /* muxer options */
    3626             :     { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
    3627             :         "set the maximum demux-decode delay", "seconds" },
    3628             :     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
    3629             :         "set the initial demux-decode delay", "seconds" },
    3630             :     { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
    3631             :         "specify a file in which to print sdp information", "file" },
    3632             : 
    3633             :     { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
    3634             :         "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
    3635             :     { "enc_time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(enc_time_bases) },
    3636             :         "set the desired time base for the encoder (1:24, 1:48000 or 0.04166, 2.0833e-5). "
    3637             :         "two special values are defined - "
    3638             :         "0 = use frame rate (video) or sample rate (audio),"
    3639             :         "-1 = match source time base", "ratio" },
    3640             : 
    3641             :     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
    3642             :         "A comma-separated list of bitstream filters", "bitstream_filters" },
    3643             :     { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3644             :         "deprecated", "audio bitstream_filters" },
    3645             :     { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3646             :         "deprecated", "video bitstream_filters" },
    3647             : 
    3648             :     { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3649             :         "set the audio options to the indicated preset", "preset" },
    3650             :     { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3651             :         "set the video options to the indicated preset", "preset" },
    3652             :     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
    3653             :         "set the subtitle options to the indicated preset", "preset" },
    3654             :     { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
    3655             :         "set options from indicated preset file", "filename" },
    3656             : 
    3657             :     { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
    3658             :         "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
    3659             : 
    3660             :     /* data codec support */
    3661             :     { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
    3662             :         "force data codec ('copy' to copy stream)", "codec" },
    3663             :     { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
    3664             :         "disable data" },
    3665             : 
    3666             : #if CONFIG_VAAPI
    3667             :     { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
    3668             :         "set VAAPI hardware device (DRM path or X11 display name)", "device" },
    3669             : #endif
    3670             : 
    3671             : #if CONFIG_QSV
    3672             :     { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
    3673             :         "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
    3674             : #endif
    3675             : 
    3676             :     { "init_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_init_hw_device },
    3677             :         "initialise hardware device", "args" },
    3678             :     { "filter_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_hw_device },
    3679             :         "set hardware device used when filtering", "device" },
    3680             : 
    3681             :     { NULL, },
    3682             : };

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