LCOV - code coverage report
Current view: top level - src - ffmpeg_opt.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1106 1938 57.1 %
Date: 2017-01-28 02:43:52 Functions: 47 72 65.3 %

          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 HAVE_VDPAU_X11
      70             :     { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
      71             : #endif
      72             : #if HAVE_DXVA2_LIB
      73             :     { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
      74             : #endif
      75             : #if CONFIG_VDA
      76             :     { "vda",   videotoolbox_init,   HWACCEL_VDA,   AV_PIX_FMT_VDA },
      77             : #endif
      78             : #if CONFIG_VIDEOTOOLBOX
      79             :     { "videotoolbox",   videotoolbox_init,   HWACCEL_VIDEOTOOLBOX,   AV_PIX_FMT_VIDEOTOOLBOX },
      80             : #endif
      81             : #if CONFIG_LIBMFX
      82             :     { "qsv",   qsv_init,   HWACCEL_QSV,   AV_PIX_FMT_QSV },
      83             : #endif
      84             : #if CONFIG_VAAPI
      85             :     { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
      86             : #endif
      87             : #if CONFIG_CUVID
      88             :     { "cuvid", cuvid_init, HWACCEL_CUVID, AV_PIX_FMT_CUDA },
      89             : #endif
      90             :     { 0 },
      91             : };
      92             : int hwaccel_lax_profile_check = 0;
      93             : AVBufferRef *hw_device_ctx;
      94             : 
      95             : char *vstats_filename;
      96             : char *sdp_filename;
      97             : 
      98             : float audio_drift_threshold = 0.1;
      99             : float dts_delta_threshold   = 10;
     100             : float dts_error_threshold   = 3600*30;
     101             : 
     102             : int audio_volume      = 256;
     103             : int audio_sync_method = 0;
     104             : int video_sync_method = VSYNC_AUTO;
     105             : float frame_drop_threshold = 0;
     106             : int do_deinterlace    = 0;
     107             : int do_benchmark      = 0;
     108             : int do_benchmark_all  = 0;
     109             : int do_hex_dump       = 0;
     110             : int do_pkt_dump       = 0;
     111             : int copy_ts           = 0;
     112             : int start_at_zero     = 0;
     113             : int copy_tb           = -1;
     114             : int debug_ts          = 0;
     115             : int exit_on_error     = 0;
     116             : int abort_on_flags    = 0;
     117             : int print_stats       = -1;
     118             : int qp_hist           = 0;
     119             : int stdin_interaction = 1;
     120             : int frame_bits_per_raw_sample = 0;
     121             : float max_error_rate  = 2.0/3;
     122             : int filter_nbthreads = 0;
     123             : int filter_complex_nbthreads = 0;
     124             : int vstats_version = 2;
     125             : 
     126             : 
     127             : static int intra_only         = 0;
     128             : static int file_overwrite     = 0;
     129             : static int no_file_overwrite  = 0;
     130             : static int do_psnr            = 0;
     131             : static int input_sync;
     132             : static int override_ffserver  = 0;
     133             : static int input_stream_potentially_available = 0;
     134             : static int ignore_unknown_streams = 0;
     135             : static int copy_unknown_streams = 0;
     136             : 
     137       10201 : static void uninit_options(OptionsContext *o)
     138             : {
     139       10201 :     const OptionDef *po = options;
     140             :     int i;
     141             : 
     142             :     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
     143     1795376 :     while (po->name) {
     144     1774974 :         void *dst = (uint8_t*)o + po->u.off;
     145             : 
     146     1774974 :         if (po->flags & OPT_SPEC) {
     147      459045 :             SpecifierOpt **so = dst;
     148      459045 :             int i, *count = (int*)(so + 1);
     149      478810 :             for (i = 0; i < *count; i++) {
     150       19765 :                 av_freep(&(*so)[i].specifier);
     151       19765 :                 if (po->flags & OPT_STRING)
     152       16015 :                     av_freep(&(*so)[i].u.str);
     153             :             }
     154      459045 :             av_freep(so);
     155      459045 :             *count = 0;
     156     1315929 :         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
     157       10201 :             av_freep(dst);
     158     1774974 :         po++;
     159             :     }
     160             : 
     161       10251 :     for (i = 0; i < o->nb_stream_maps; i++)
     162          50 :         av_freep(&o->stream_maps[i].linklabel);
     163       10201 :     av_freep(&o->stream_maps);
     164       10201 :     av_freep(&o->audio_channel_maps);
     165       10201 :     av_freep(&o->streamid_map);
     166       10201 :     av_freep(&o->attachments);
     167       10201 : }
     168             : 
     169       10201 : static void init_options(OptionsContext *o)
     170             : {
     171       10201 :     memset(o, 0, sizeof(*o));
     172             : 
     173       10201 :     o->stop_time = INT64_MAX;
     174       10201 :     o->mux_max_delay  = 0.7;
     175       10201 :     o->start_time     = AV_NOPTS_VALUE;
     176       10201 :     o->start_time_eof = AV_NOPTS_VALUE;
     177       10201 :     o->recording_time = INT64_MAX;
     178       10201 :     o->limit_filesize = UINT64_MAX;
     179       10201 :     o->chapters_input_file = INT_MAX;
     180       10201 :     o->accurate_seek  = 1;
     181       10201 : }
     182             : 
     183           0 : static int show_hwaccels(void *optctx, const char *opt, const char *arg)
     184             : {
     185             :     int i;
     186             : 
     187           0 :     printf("Hardware acceleration methods:\n");
     188           0 :     for (i = 0; i < FF_ARRAY_ELEMS(hwaccels) - 1; i++) {
     189           0 :         printf("%s\n", hwaccels[i].name);
     190             :     }
     191           0 :     printf("\n");
     192           0 :     return 0;
     193             : }
     194             : 
     195             : /* return a copy of the input with the stream specifiers removed from the keys */
     196       10201 : static AVDictionary *strip_specifiers(AVDictionary *dict)
     197             : {
     198       10201 :     AVDictionaryEntry *e = NULL;
     199       10201 :     AVDictionary    *ret = NULL;
     200             : 
     201       50045 :     while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
     202       29643 :         char *p = strchr(e->key, ':');
     203             : 
     204       29643 :         if (p)
     205         194 :             *p = 0;
     206       29643 :         av_dict_set(&ret, e->key, e->value, 0);
     207       29643 :         if (p)
     208         194 :             *p = ':';
     209             :     }
     210       10201 :     return ret;
     211             : }
     212             : 
     213           0 : static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     214             : {
     215             :     static const AVOption opts[] = {
     216             :         { "abort_on"        , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
     217             :         { "empty_output"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT     },    .unit = "flags" },
     218             :         { NULL },
     219             :     };
     220             :     static const AVClass class = {
     221             :         .class_name = "",
     222             :         .item_name  = av_default_item_name,
     223             :         .option     = opts,
     224             :         .version    = LIBAVUTIL_VERSION_INT,
     225             :     };
     226           0 :     const AVClass *pclass = &class;
     227             : 
     228           0 :     return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
     229             : }
     230             : 
     231           0 : static int opt_sameq(void *optctx, const char *opt, const char *arg)
     232             : {
     233           0 :     av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
     234             :            "If you are looking for an option to preserve the quality (which is not "
     235             :            "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
     236             :            opt, opt);
     237           0 :     return AVERROR(EINVAL);
     238             : }
     239             : 
     240           0 : static int opt_video_channel(void *optctx, const char *opt, const char *arg)
     241             : {
     242           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
     243           0 :     return opt_default(optctx, "channel", arg);
     244             : }
     245             : 
     246           0 : static int opt_video_standard(void *optctx, const char *opt, const char *arg)
     247             : {
     248           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
     249           0 :     return opt_default(optctx, "standard", arg);
     250             : }
     251             : 
     252         317 : static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
     253             : {
     254         317 :     OptionsContext *o = optctx;
     255         317 :     return parse_option(o, "codec:a", arg, options);
     256             : }
     257             : 
     258        3550 : static int opt_video_codec(void *optctx, const char *opt, const char *arg)
     259             : {
     260        3550 :     OptionsContext *o = optctx;
     261        3550 :     return parse_option(o, "codec:v", arg, options);
     262             : }
     263             : 
     264           2 : static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
     265             : {
     266           2 :     OptionsContext *o = optctx;
     267           2 :     return parse_option(o, "codec:s", arg, options);
     268             : }
     269             : 
     270           0 : static int opt_data_codec(void *optctx, const char *opt, const char *arg)
     271             : {
     272           0 :     OptionsContext *o = optctx;
     273           0 :     return parse_option(o, "codec:d", arg, options);
     274             : }
     275             : 
     276          43 : static int opt_map(void *optctx, const char *opt, const char *arg)
     277             : {
     278          43 :     OptionsContext *o = optctx;
     279          43 :     StreamMap *m = NULL;
     280          43 :     int i, negative = 0, file_idx;
     281          43 :     int sync_file_idx = -1, sync_stream_idx = 0;
     282             :     char *p, *sync;
     283             :     char *map;
     284             :     char *allow_unused;
     285             : 
     286          43 :     if (*arg == '-') {
     287           0 :         negative = 1;
     288           0 :         arg++;
     289             :     }
     290          43 :     map = av_strdup(arg);
     291          43 :     if (!map)
     292           0 :         return AVERROR(ENOMEM);
     293             : 
     294             :     /* parse sync stream first, just pick first matching stream */
     295          43 :     if (sync = strchr(map, ',')) {
     296           0 :         *sync = 0;
     297           0 :         sync_file_idx = strtol(sync + 1, &sync, 0);
     298           0 :         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
     299           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
     300           0 :             exit_program(1);
     301             :         }
     302           0 :         if (*sync)
     303           0 :             sync++;
     304           0 :         for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
     305           0 :             if (check_stream_specifier(input_files[sync_file_idx]->ctx,
     306           0 :                                        input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
     307           0 :                 sync_stream_idx = i;
     308           0 :                 break;
     309             :             }
     310           0 :         if (i == input_files[sync_file_idx]->nb_streams) {
     311           0 :             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
     312             :                                        "match any streams.\n", arg);
     313           0 :             exit_program(1);
     314             :         }
     315             :     }
     316             : 
     317             : 
     318          43 :     if (map[0] == '[') {
     319             :         /* this mapping refers to lavfi output */
     320           2 :         const char *c = map + 1;
     321           2 :         GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     322           2 :         m = &o->stream_maps[o->nb_stream_maps - 1];
     323           2 :         m->linklabel = av_get_token(&c, "]");
     324           2 :         if (!m->linklabel) {
     325           0 :             av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
     326           0 :             exit_program(1);
     327             :         }
     328             :     } else {
     329          41 :         if (allow_unused = strchr(map, '?'))
     330           0 :             *allow_unused = 0;
     331          41 :         file_idx = strtol(map, &p, 0);
     332          41 :         if (file_idx >= nb_input_files || file_idx < 0) {
     333           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
     334           0 :             exit_program(1);
     335             :         }
     336          41 :         if (negative)
     337             :             /* disable some already defined maps */
     338           0 :             for (i = 0; i < o->nb_stream_maps; i++) {
     339           0 :                 m = &o->stream_maps[i];
     340           0 :                 if (file_idx == m->file_index &&
     341           0 :                     check_stream_specifier(input_files[m->file_index]->ctx,
     342           0 :                                            input_files[m->file_index]->ctx->streams[m->stream_index],
     343           0 :                                            *p == ':' ? p + 1 : p) > 0)
     344           0 :                     m->disabled = 1;
     345             :             }
     346             :         else
     347         123 :             for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
     348         131 :                 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
     349         131 :                             *p == ':' ? p + 1 : p) <= 0)
     350          34 :                     continue;
     351          48 :                 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     352          48 :                 m = &o->stream_maps[o->nb_stream_maps - 1];
     353             : 
     354          48 :                 m->file_index   = file_idx;
     355          48 :                 m->stream_index = i;
     356             : 
     357          48 :                 if (sync_file_idx >= 0) {
     358           0 :                     m->sync_file_index   = sync_file_idx;
     359           0 :                     m->sync_stream_index = sync_stream_idx;
     360             :                 } else {
     361          48 :                     m->sync_file_index   = file_idx;
     362          48 :                     m->sync_stream_index = i;
     363             :                 }
     364             :             }
     365             :     }
     366             : 
     367          43 :     if (!m) {
     368           0 :         if (allow_unused) {
     369           0 :             av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
     370             :         } else {
     371           0 :             av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
     372             :                                        "To ignore this, add a trailing '?' to the map.\n", arg);
     373           0 :             exit_program(1);
     374             :         }
     375             :     }
     376             : 
     377          43 :     av_freep(&map);
     378          43 :     return 0;
     379             : }
     380             : 
     381           1 : static int opt_attach(void *optctx, const char *opt, const char *arg)
     382             : {
     383           1 :     OptionsContext *o = optctx;
     384           1 :     GROW_ARRAY(o->attachments, o->nb_attachments);
     385           1 :     o->attachments[o->nb_attachments - 1] = arg;
     386           1 :     return 0;
     387             : }
     388             : 
     389           6 : static int opt_map_channel(void *optctx, const char *opt, const char *arg)
     390             : {
     391           6 :     OptionsContext *o = optctx;
     392             :     int n;
     393             :     AVStream *st;
     394             :     AudioChannelMap *m;
     395             : 
     396           6 :     GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
     397           6 :     m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
     398             : 
     399             :     /* muted channel syntax */
     400           6 :     n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
     401           6 :     if ((n == 1 || n == 3) && m->channel_idx == -1) {
     402           1 :         m->file_idx = m->stream_idx = -1;
     403           1 :         if (n == 1)
     404           1 :             m->ofile_idx = m->ostream_idx = -1;
     405           1 :         return 0;
     406             :     }
     407             : 
     408             :     /* normal syntax */
     409           5 :     n = sscanf(arg, "%d.%d.%d:%d.%d",
     410             :                &m->file_idx,  &m->stream_idx, &m->channel_idx,
     411             :                &m->ofile_idx, &m->ostream_idx);
     412             : 
     413           5 :     if (n != 3 && n != 5) {
     414           0 :         av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
     415             :                "[file.stream.channel|-1][:syncfile:syncstream]\n");
     416           0 :         exit_program(1);
     417             :     }
     418             : 
     419           5 :     if (n != 5) // only file.stream.channel specified
     420           5 :         m->ofile_idx = m->ostream_idx = -1;
     421             : 
     422             :     /* check input */
     423           5 :     if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
     424           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
     425             :                m->file_idx);
     426           0 :         exit_program(1);
     427             :     }
     428          10 :     if (m->stream_idx < 0 ||
     429           5 :         m->stream_idx >= input_files[m->file_idx]->nb_streams) {
     430           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
     431             :                m->file_idx, m->stream_idx);
     432           0 :         exit_program(1);
     433             :     }
     434           5 :     st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
     435           5 :     if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
     436           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
     437             :                m->file_idx, m->stream_idx);
     438           0 :         exit_program(1);
     439             :     }
     440           5 :     if (m->channel_idx < 0 || m->channel_idx >= st->codecpar->channels) {
     441           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
     442             :                m->file_idx, m->stream_idx, m->channel_idx);
     443           0 :         exit_program(1);
     444             :     }
     445           5 :     return 0;
     446             : }
     447             : 
     448           0 : static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
     449             : {
     450           0 :     av_free(sdp_filename);
     451           0 :     sdp_filename = av_strdup(arg);
     452           0 :     return 0;
     453             : }
     454             : 
     455             : #if CONFIG_VAAPI
     456           0 : static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
     457             : {
     458             :     int err;
     459           0 :     err = vaapi_device_init(arg);
     460           0 :     if (err < 0)
     461           0 :         exit_program(1);
     462           0 :     return 0;
     463             : }
     464             : #endif
     465             : 
     466             : /**
     467             :  * Parse a metadata specifier passed as 'arg' parameter.
     468             :  * @param arg  metadata string to parse
     469             :  * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
     470             :  * @param index for type c/p, chapter/program index is written here
     471             :  * @param stream_spec for type s, the stream specifier is written here
     472             :  */
     473         169 : static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
     474             : {
     475         169 :     if (*arg) {
     476          22 :         *type = *arg;
     477          22 :         switch (*arg) {
     478             :         case 'g':
     479          16 :             break;
     480             :         case 's':
     481           6 :             if (*(++arg) && *arg != ':') {
     482           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
     483           0 :                 exit_program(1);
     484             :             }
     485           6 :             *stream_spec = *arg == ':' ? arg + 1 : "";
     486           6 :             break;
     487             :         case 'c':
     488             :         case 'p':
     489           0 :             if (*(++arg) == ':')
     490           0 :                 *index = strtol(++arg, NULL, 0);
     491           0 :             break;
     492             :         default:
     493           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
     494           0 :             exit_program(1);
     495             :         }
     496             :     } else
     497         147 :         *type = 'g';
     498         169 : }
     499             : 
     500           5 : static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
     501             : {
     502           5 :     AVDictionary **meta_in = NULL;
     503           5 :     AVDictionary **meta_out = NULL;
     504           5 :     int i, ret = 0;
     505             :     char type_in, type_out;
     506           5 :     const char *istream_spec = NULL, *ostream_spec = NULL;
     507           5 :     int idx_in = 0, idx_out = 0;
     508             : 
     509           5 :     parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
     510           5 :     parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
     511             : 
     512           5 :     if (!ic) {
     513           2 :         if (type_out == 'g' || !*outspec)
     514           2 :             o->metadata_global_manual = 1;
     515           2 :         if (type_out == 's' || !*outspec)
     516           0 :             o->metadata_streams_manual = 1;
     517           2 :         if (type_out == 'c' || !*outspec)
     518           0 :             o->metadata_chapters_manual = 1;
     519           2 :         return 0;
     520             :     }
     521             : 
     522           3 :     if (type_in == 'g' || type_out == 'g')
     523           1 :         o->metadata_global_manual = 1;
     524           3 :     if (type_in == 's' || type_out == 's')
     525           2 :         o->metadata_streams_manual = 1;
     526           3 :     if (type_in == 'c' || type_out == 'c')
     527           0 :         o->metadata_chapters_manual = 1;
     528             : 
     529             :     /* ic is NULL when just disabling automatic mappings */
     530           3 :     if (!ic)
     531           0 :         return 0;
     532             : 
     533             : #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
     534             :     if ((index) < 0 || (index) >= (nb_elems)) {\
     535             :         av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
     536             :                 (desc), (index));\
     537             :         exit_program(1);\
     538             :     }
     539             : 
     540             : #define SET_DICT(type, meta, context, index)\
     541             :         switch (type) {\
     542             :         case 'g':\
     543             :             meta = &context->metadata;\
     544             :             break;\
     545             :         case 'c':\
     546             :             METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
     547             :             meta = &context->chapters[index]->metadata;\
     548             :             break;\
     549             :         case 'p':\
     550             :             METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
     551             :             meta = &context->programs[index]->metadata;\
     552             :             break;\
     553             :         case 's':\
     554             :             break; /* handled separately below */ \
     555             :         default: av_assert0(0);\
     556             :         }\
     557             : 
     558           3 :     SET_DICT(type_in, meta_in, ic, idx_in);
     559           3 :     SET_DICT(type_out, meta_out, oc, idx_out);
     560             : 
     561             :     /* for input streams choose first matching stream */
     562           3 :     if (type_in == 's') {
     563           3 :         for (i = 0; i < ic->nb_streams; i++) {
     564           3 :             if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
     565           2 :                 meta_in = &ic->streams[i]->metadata;
     566           2 :                 break;
     567           1 :             } else if (ret < 0)
     568           0 :                 exit_program(1);
     569             :         }
     570           2 :         if (!meta_in) {
     571           0 :             av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
     572           0 :             exit_program(1);
     573             :         }
     574             :     }
     575             : 
     576           3 :     if (type_out == 's') {
     577           8 :         for (i = 0; i < oc->nb_streams; i++) {
     578           6 :             if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
     579           2 :                 meta_out = &oc->streams[i]->metadata;
     580           2 :                 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     581           4 :             } else if (ret < 0)
     582           0 :                 exit_program(1);
     583             :         }
     584             :     } else
     585           1 :         av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     586             : 
     587           3 :     return 0;
     588             : }
     589             : 
     590           0 : static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
     591             : {
     592           0 :     OptionsContext *o = optctx;
     593             :     char buf[128];
     594           0 :     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
     595           0 :     struct tm time = *gmtime((time_t*)&recording_timestamp);
     596           0 :     if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
     597           0 :         return -1;
     598           0 :     parse_option(o, "metadata", buf, options);
     599             : 
     600           0 :     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
     601             :                                  "tag instead.\n", opt);
     602           0 :     return 0;
     603             : }
     604             : 
     605       10256 : static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
     606             : {
     607             :     const AVCodecDescriptor *desc;
     608       10256 :     const char *codec_string = encoder ? "encoder" : "decoder";
     609             :     AVCodec *codec;
     610             : 
     611       10256 :     codec = encoder ?
     612       10256 :         avcodec_find_encoder_by_name(name) :
     613             :         avcodec_find_decoder_by_name(name);
     614             : 
     615       10256 :     if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
     616           1 :         codec = encoder ? avcodec_find_encoder(desc->id) :
     617           0 :                           avcodec_find_decoder(desc->id);
     618           1 :         if (codec)
     619           1 :             av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
     620             :                    codec_string, codec->name, desc->name);
     621             :     }
     622             : 
     623       10256 :     if (!codec) {
     624           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
     625           0 :         exit_program(1);
     626             :     }
     627       10256 :     if (codec->type != type) {
     628           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
     629           0 :         exit_program(1);
     630             :     }
     631       10256 :     return codec;
     632             : }
     633             : 
     634       10769 : static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
     635             : {
     636       10769 :     char *codec_name = NULL;
     637             : 
     638       10769 :     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
     639       10769 :     if (codec_name) {
     640        3830 :         AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
     641        3830 :         st->codecpar->codec_id = codec->id;
     642        3830 :         return codec;
     643             :     } else
     644        6939 :         return avcodec_find_decoder(st->codecpar->codec_id);
     645             : }
     646             : 
     647             : /* Add all the streams from the given input file to the global
     648             :  * list of input streams. */
     649        5130 : static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
     650             : {
     651             :     int i, ret;
     652             : 
     653       10559 :     for (i = 0; i < ic->nb_streams; i++) {
     654        5429 :         AVStream *st = ic->streams[i];
     655        5429 :         AVCodecParameters *par = st->codecpar;
     656        5429 :         InputStream *ist = av_mallocz(sizeof(*ist));
     657        5429 :         char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
     658        5429 :         char *hwaccel_output_format = NULL;
     659        5429 :         char *codec_tag = NULL;
     660             :         char *next;
     661        5429 :         char *discard_str = NULL;
     662        5429 :         const AVClass *cc = avcodec_get_class();
     663        5429 :         const AVOption *discard_opt = av_opt_find(&cc, "skip_frame", NULL, 0, 0);
     664             : 
     665        5429 :         if (!ist)
     666           0 :             exit_program(1);
     667             : 
     668        5429 :         GROW_ARRAY(input_streams, nb_input_streams);
     669        5429 :         input_streams[nb_input_streams - 1] = ist;
     670             : 
     671        5429 :         ist->st = st;
     672        5429 :         ist->file_index = nb_input_files;
     673        5429 :         ist->discard = 1;
     674        5429 :         st->discard  = AVDISCARD_ALL;
     675        5429 :         ist->nb_samples = 0;
     676        5429 :         ist->min_pts = INT64_MAX;
     677        5429 :         ist->max_pts = INT64_MIN;
     678             : 
     679        5429 :         ist->ts_scale = 1.0;
     680        5429 :         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
     681             : 
     682        5429 :         ist->autorotate = 1;
     683        5429 :         MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
     684             : 
     685        5429 :         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
     686        5429 :         if (codec_tag) {
     687           0 :             uint32_t tag = strtol(codec_tag, &next, 0);
     688           0 :             if (*next)
     689           0 :                 tag = AV_RL32(codec_tag);
     690           0 :             st->codecpar->codec_tag = tag;
     691             :         }
     692             : 
     693        5429 :         ist->dec = choose_decoder(o, ic, st);
     694        5429 :         ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id, ic, st, ist->dec);
     695             : 
     696        5429 :         ist->reinit_filters = -1;
     697        5429 :         MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
     698             : 
     699        5429 :         MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
     700        5429 :         ist->user_set_discard = AVDISCARD_NONE;
     701        5429 :         if (discard_str && av_opt_eval_int(&cc, discard_opt, discard_str, &ist->user_set_discard) < 0) {
     702           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
     703             :                     discard_str);
     704           0 :             exit_program(1);
     705             :         }
     706             : 
     707        5429 :         ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
     708             : 
     709        5429 :         ist->dec_ctx = avcodec_alloc_context3(ist->dec);
     710        5429 :         if (!ist->dec_ctx) {
     711           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
     712           0 :             exit_program(1);
     713             :         }
     714             : 
     715        5429 :         ret = avcodec_parameters_to_context(ist->dec_ctx, par);
     716        5429 :         if (ret < 0) {
     717           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     718           0 :             exit_program(1);
     719             :         }
     720             : 
     721        5429 :         switch (par->codec_type) {
     722             :         case AVMEDIA_TYPE_VIDEO:
     723        4134 :             if(!ist->dec)
     724           0 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     725             : #if FF_API_EMU_EDGE
     726        4134 :             if (av_codec_get_lowres(st->codec)) {
     727           1 :                 av_codec_set_lowres(ist->dec_ctx, av_codec_get_lowres(st->codec));
     728           1 :                 ist->dec_ctx->width  = st->codec->width;
     729           1 :                 ist->dec_ctx->height = st->codec->height;
     730           1 :                 ist->dec_ctx->coded_width  = st->codec->coded_width;
     731           1 :                 ist->dec_ctx->coded_height = st->codec->coded_height;
     732           1 :                 ist->dec_ctx->flags |= CODEC_FLAG_EMU_EDGE;
     733             :             }
     734             : #endif
     735             : 
     736             :             // avformat_find_stream_info() doesn't set this for us anymore.
     737        4134 :             ist->dec_ctx->framerate = st->avg_frame_rate;
     738             : 
     739        4134 :             ist->resample_height  = ist->dec_ctx->height;
     740        4134 :             ist->resample_width   = ist->dec_ctx->width;
     741        4134 :             ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
     742             : 
     743        4134 :             MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
     744        4134 :             if (framerate && av_parse_video_rate(&ist->framerate,
     745             :                                                  framerate) < 0) {
     746           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
     747             :                        framerate);
     748           0 :                 exit_program(1);
     749             :             }
     750             : 
     751        4134 :             ist->top_field_first = -1;
     752        4134 :             MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
     753             : 
     754        4134 :             MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
     755        4134 :             if (hwaccel) {
     756        3920 :                 if (!strcmp(hwaccel, "none"))
     757        3920 :                     ist->hwaccel_id = HWACCEL_NONE;
     758           0 :                 else if (!strcmp(hwaccel, "auto"))
     759           0 :                     ist->hwaccel_id = HWACCEL_AUTO;
     760             :                 else {
     761             :                     int i;
     762           0 :                     for (i = 0; hwaccels[i].name; i++) {
     763           0 :                         if (!strcmp(hwaccels[i].name, hwaccel)) {
     764           0 :                             ist->hwaccel_id = hwaccels[i].id;
     765           0 :                             break;
     766             :                         }
     767             :                     }
     768             : 
     769           0 :                     if (!ist->hwaccel_id) {
     770           0 :                         av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
     771             :                                hwaccel);
     772           0 :                         av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
     773           0 :                         for (i = 0; hwaccels[i].name; i++)
     774           0 :                             av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
     775           0 :                         av_log(NULL, AV_LOG_FATAL, "\n");
     776           0 :                         exit_program(1);
     777             :                     }
     778             :                 }
     779             :             }
     780             : 
     781        4134 :             MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
     782        4134 :             if (hwaccel_device) {
     783           0 :                 ist->hwaccel_device = av_strdup(hwaccel_device);
     784           0 :                 if (!ist->hwaccel_device)
     785           0 :                     exit_program(1);
     786             :             }
     787             : 
     788        4134 :             MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
     789             :                                  hwaccel_output_format, ic, st);
     790        4134 :             if (hwaccel_output_format) {
     791           0 :                 ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
     792           0 :                 if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
     793           0 :                     av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
     794             :                            "format: %s", hwaccel_output_format);
     795             :                 }
     796             :             } else {
     797        4134 :                 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
     798             :             }
     799             : 
     800        4134 :             ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
     801             : 
     802        4134 :             break;
     803             :         case AVMEDIA_TYPE_AUDIO:
     804        1212 :             ist->guess_layout_max = INT_MAX;
     805        1212 :             MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
     806        1212 :             guess_input_channel_layout(ist);
     807             : 
     808        1212 :             ist->resample_sample_fmt     = ist->dec_ctx->sample_fmt;
     809        1212 :             ist->resample_sample_rate    = ist->dec_ctx->sample_rate;
     810        1212 :             ist->resample_channels       = ist->dec_ctx->channels;
     811        1212 :             ist->resample_channel_layout = ist->dec_ctx->channel_layout;
     812             : 
     813        1212 :             break;
     814             :         case AVMEDIA_TYPE_DATA:
     815             :         case AVMEDIA_TYPE_SUBTITLE: {
     816          82 :             char *canvas_size = NULL;
     817          82 :             if(!ist->dec)
     818          44 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     819          82 :             MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
     820          82 :             MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
     821          82 :             if (canvas_size &&
     822           0 :                 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
     823           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
     824           0 :                 exit_program(1);
     825             :             }
     826          82 :             break;
     827             :         }
     828             :         case AVMEDIA_TYPE_ATTACHMENT:
     829             :         case AVMEDIA_TYPE_UNKNOWN:
     830           1 :             break;
     831             :         default:
     832           0 :             abort();
     833             :         }
     834             : 
     835        5429 :         ret = avcodec_parameters_from_context(par, ist->dec_ctx);
     836        5429 :         if (ret < 0) {
     837           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     838           0 :             exit_program(1);
     839             :         }
     840             :     }
     841        5130 : }
     842             : 
     843        5030 : static void assert_file_overwrite(const char *filename)
     844             : {
     845        5030 :     if (file_overwrite && no_file_overwrite) {
     846           0 :         fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
     847           0 :         exit_program(1);
     848             :     }
     849             : 
     850        5030 :     if (!file_overwrite) {
     851        3742 :         const char *proto_name = avio_find_protocol_name(filename);
     852        3742 :         if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
     853           0 :             if (stdin_interaction && !no_file_overwrite) {
     854           0 :                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
     855           0 :                 fflush(stderr);
     856           0 :                 term_exit();
     857           0 :                 signal(SIGINT, SIG_DFL);
     858           0 :                 if (!read_yesno()) {
     859           0 :                     av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
     860           0 :                     exit_program(1);
     861             :                 }
     862           0 :                 term_init();
     863             :             }
     864             :             else {
     865           0 :                 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
     866           0 :                 exit_program(1);
     867             :             }
     868             :         }
     869             :     }
     870        5030 : }
     871             : 
     872           0 : static void dump_attachment(AVStream *st, const char *filename)
     873             : {
     874             :     int ret;
     875           0 :     AVIOContext *out = NULL;
     876             :     AVDictionaryEntry *e;
     877             : 
     878           0 :     if (!st->codecpar->extradata_size) {
     879           0 :         av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
     880             :                nb_input_files - 1, st->index);
     881           0 :         return;
     882             :     }
     883           0 :     if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
     884           0 :         filename = e->value;
     885           0 :     if (!*filename) {
     886           0 :         av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
     887             :                "in stream #%d:%d.\n", nb_input_files - 1, st->index);
     888           0 :         exit_program(1);
     889             :     }
     890             : 
     891           0 :     assert_file_overwrite(filename);
     892             : 
     893           0 :     if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
     894           0 :         av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
     895             :                filename);
     896           0 :         exit_program(1);
     897             :     }
     898             : 
     899           0 :     avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
     900           0 :     avio_flush(out);
     901           0 :     avio_close(out);
     902             : }
     903             : 
     904        5130 : static int open_input_file(OptionsContext *o, const char *filename)
     905             : {
     906             :     InputFile *f;
     907             :     AVFormatContext *ic;
     908        5130 :     AVInputFormat *file_iformat = NULL;
     909             :     int err, i, ret;
     910             :     int64_t timestamp;
     911             :     AVDictionary **opts;
     912        5130 :     AVDictionary *unused_opts = NULL;
     913        5130 :     AVDictionaryEntry *e = NULL;
     914             :     int orig_nb_streams;                     // number of streams before avformat_find_stream_info
     915        5130 :     char *   video_codec_name = NULL;
     916        5130 :     char *   audio_codec_name = NULL;
     917        5130 :     char *subtitle_codec_name = NULL;
     918        5130 :     char *    data_codec_name = NULL;
     919        5130 :     int scan_all_pmts_set = 0;
     920             : 
     921        5130 :     if (o->format) {
     922        2377 :         if (!(file_iformat = av_find_input_format(o->format))) {
     923           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
     924           0 :             exit_program(1);
     925             :         }
     926             :     }
     927             : 
     928        5130 :     if (!strcmp(filename, "-"))
     929           0 :         filename = "pipe:";
     930             : 
     931       10260 :     stdin_interaction &= strncmp(filename, "pipe:", 5) &&
     932        5130 :                          strcmp(filename, "/dev/stdin");
     933             : 
     934             :     /* get default parameters from command line */
     935        5130 :     ic = avformat_alloc_context();
     936        5130 :     if (!ic) {
     937           0 :         print_error(filename, AVERROR(ENOMEM));
     938           0 :         exit_program(1);
     939             :     }
     940        5130 :     if (o->nb_audio_sample_rate) {
     941          61 :         av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
     942             :     }
     943        5130 :     if (o->nb_audio_channels) {
     944             :         /* because we set audio_channels based on both the "ac" and
     945             :          * "channel_layout" options, we need to check that the specified
     946             :          * demuxer actually has the "channels" option before setting it */
     947          14 :         if (file_iformat && file_iformat->priv_class &&
     948           7 :             av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
     949             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
     950           7 :             av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
     951             :         }
     952             :     }
     953        5130 :     if (o->nb_frame_rates) {
     954             :         /* set the format-level framerate option;
     955             :          * this is important for video grabbers, e.g. x11 */
     956          48 :         if (file_iformat && file_iformat->priv_class &&
     957          24 :             av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
     958             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
     959          24 :             av_dict_set(&o->g->format_opts, "framerate",
     960          24 :                         o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
     961             :         }
     962             :     }
     963        5130 :     if (o->nb_frame_sizes) {
     964         458 :         av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
     965             :     }
     966        5130 :     if (o->nb_frame_pix_fmts)
     967         458 :         av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
     968             : 
     969        5130 :     MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
     970        5130 :     MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
     971        5130 :     MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
     972        5130 :     MATCH_PER_TYPE_OPT(codec_names, str,     data_codec_name, ic, "d");
     973             : 
     974       10260 :     ic->video_codec_id   = video_codec_name ?
     975        5130 :         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : AV_CODEC_ID_NONE;
     976       10260 :     ic->audio_codec_id   = audio_codec_name ?
     977        5130 :         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : AV_CODEC_ID_NONE;
     978       10260 :     ic->subtitle_codec_id= subtitle_codec_name ?
     979        5130 :         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
     980       10260 :     ic->data_codec_id    = data_codec_name ?
     981        5130 :         find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0)->id : AV_CODEC_ID_NONE;
     982             : 
     983        5130 :     if (video_codec_name)
     984        1890 :         av_format_set_video_codec   (ic, find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0));
     985        5130 :     if (audio_codec_name)
     986          10 :         av_format_set_audio_codec   (ic, find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0));
     987        5130 :     if (subtitle_codec_name)
     988           0 :         av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
     989        5130 :     if (data_codec_name)
     990           0 :         av_format_set_data_codec(ic, find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0));
     991             : 
     992        5130 :     ic->flags |= AVFMT_FLAG_NONBLOCK;
     993        5130 :     ic->interrupt_callback = int_cb;
     994             : 
     995        5130 :     if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
     996        5130 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
     997        5130 :         scan_all_pmts_set = 1;
     998             :     }
     999             :     /* open the input file with generic avformat function */
    1000        5130 :     err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
    1001        5130 :     if (err < 0) {
    1002           0 :         print_error(filename, err);
    1003           0 :         if (err == AVERROR_PROTOCOL_NOT_FOUND)
    1004           0 :             av_log(NULL, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
    1005           0 :         exit_program(1);
    1006             :     }
    1007        5130 :     if (scan_all_pmts_set)
    1008        5130 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
    1009        5130 :     remove_avoptions(&o->g->format_opts, o->g->codec_opts);
    1010        5130 :     assert_avoptions(o->g->format_opts);
    1011             : 
    1012             :     /* apply forced codec ids */
    1013       10470 :     for (i = 0; i < ic->nb_streams; i++)
    1014        5340 :         choose_decoder(o, ic, ic->streams[i]);
    1015             : 
    1016             :     /* Set AVCodecContext options for avformat_find_stream_info */
    1017        5130 :     opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
    1018        5130 :     orig_nb_streams = ic->nb_streams;
    1019             : 
    1020             :     /* If not enough info to get the stream parameters, we decode the
    1021             :        first frames to get it. (used in mpeg case for example) */
    1022        5130 :     ret = avformat_find_stream_info(ic, opts);
    1023        5130 :     if (ret < 0) {
    1024           0 :         av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
    1025           0 :         if (ic->nb_streams == 0) {
    1026           0 :             avformat_close_input(&ic);
    1027           0 :             exit_program(1);
    1028             :         }
    1029             :     }
    1030             : 
    1031        5130 :     if (o->start_time_eof != AV_NOPTS_VALUE) {
    1032           0 :         if (ic->duration>0) {
    1033           0 :             o->start_time = o->start_time_eof + ic->duration;
    1034             :         } else
    1035           0 :             av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
    1036             :     }
    1037        5130 :     timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
    1038             :     /* add the stream start time */
    1039        5130 :     if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
    1040        3813 :         timestamp += ic->start_time;
    1041             : 
    1042             :     /* if seeking requested, we execute it */
    1043        5130 :     if (o->start_time != AV_NOPTS_VALUE) {
    1044          11 :         int64_t seek_timestamp = timestamp;
    1045             : 
    1046          11 :         if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
    1047          11 :             int dts_heuristic = 0;
    1048          22 :             for (i=0; i<ic->nb_streams; i++) {
    1049          11 :                 const AVCodecParameters *par = ic->streams[i]->codecpar;
    1050          11 :                 if (par->video_delay)
    1051           0 :                     dts_heuristic = 1;
    1052             :             }
    1053          11 :             if (dts_heuristic) {
    1054           0 :                 seek_timestamp -= 3*AV_TIME_BASE / 23;
    1055             :             }
    1056             :         }
    1057          11 :         ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
    1058          11 :         if (ret < 0) {
    1059           1 :             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
    1060           1 :                    filename, (double)timestamp / AV_TIME_BASE);
    1061             :         }
    1062             :     }
    1063             : 
    1064             :     /* update the current parameters so that they match the one of the input stream */
    1065        5130 :     add_input_streams(o, ic);
    1066             : 
    1067             :     /* dump the file content */
    1068        5130 :     av_dump_format(ic, nb_input_files, filename, 0);
    1069             : 
    1070        5130 :     GROW_ARRAY(input_files, nb_input_files);
    1071        5130 :     f = av_mallocz(sizeof(*f));
    1072        5130 :     if (!f)
    1073           0 :         exit_program(1);
    1074        5130 :     input_files[nb_input_files - 1] = f;
    1075             : 
    1076        5130 :     f->ctx        = ic;
    1077        5130 :     f->ist_index  = nb_input_streams - ic->nb_streams;
    1078        5130 :     f->start_time = o->start_time;
    1079        5130 :     f->recording_time = o->recording_time;
    1080        5130 :     f->input_ts_offset = o->input_ts_offset;
    1081        5130 :     f->ts_offset  = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
    1082        5130 :     f->nb_streams = ic->nb_streams;
    1083        5130 :     f->rate_emu   = o->rate_emu;
    1084        5130 :     f->accurate_seek = o->accurate_seek;
    1085        5130 :     f->loop = o->loop;
    1086        5130 :     f->duration = 0;
    1087        5130 :     f->time_base = (AVRational){ 1, 1 };
    1088             : #if HAVE_PTHREADS
    1089        5130 :     f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
    1090             : #endif
    1091             : 
    1092             :     /* check if all codec options have been used */
    1093        5130 :     unused_opts = strip_specifiers(o->g->codec_opts);
    1094       10559 :     for (i = f->ist_index; i < nb_input_streams; i++) {
    1095        5429 :         e = NULL;
    1096       27513 :         while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
    1097             :                                 AV_DICT_IGNORE_SUFFIX)))
    1098       16655 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    1099             :     }
    1100             : 
    1101        5130 :     e = NULL;
    1102       10500 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    1103         240 :         const AVClass *class = avcodec_get_class();
    1104         240 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    1105             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1106         240 :         const AVClass *fclass = avformat_get_class();
    1107         240 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    1108             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1109         240 :         if (!option || foption)
    1110           0 :             continue;
    1111             : 
    1112             : 
    1113         240 :         if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
    1114           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    1115             :                    "input file #%d (%s) is not a decoding option.\n", e->key,
    1116           0 :                    option->help ? option->help : "", nb_input_files - 1,
    1117             :                    filename);
    1118           0 :             exit_program(1);
    1119             :         }
    1120             : 
    1121         480 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    1122             :                "input file #%d (%s) has not been used for any stream. The most "
    1123             :                "likely reason is either wrong type (e.g. a video option with "
    1124             :                "no video streams) or that it is a private option of some decoder "
    1125             :                "which was not actually used for any stream.\n", e->key,
    1126         240 :                option->help ? option->help : "", nb_input_files - 1, filename);
    1127             :     }
    1128        5130 :     av_dict_free(&unused_opts);
    1129             : 
    1130        5130 :     for (i = 0; i < o->nb_dump_attachment; i++) {
    1131             :         int j;
    1132             : 
    1133           0 :         for (j = 0; j < ic->nb_streams; j++) {
    1134           0 :             AVStream *st = ic->streams[j];
    1135             : 
    1136           0 :             if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
    1137           0 :                 dump_attachment(st, o->dump_attachment[i].u.str);
    1138             :         }
    1139             :     }
    1140             : 
    1141       10470 :     for (i = 0; i < orig_nb_streams; i++)
    1142        5340 :         av_dict_free(&opts[i]);
    1143        5130 :     av_freep(&opts);
    1144             : 
    1145        5130 :     input_stream_potentially_available = 1;
    1146             : 
    1147        5130 :     return 0;
    1148             : }
    1149             : 
    1150           0 : static uint8_t *get_line(AVIOContext *s)
    1151             : {
    1152             :     AVIOContext *line;
    1153             :     uint8_t *buf;
    1154             :     char c;
    1155             : 
    1156           0 :     if (avio_open_dyn_buf(&line) < 0) {
    1157           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
    1158           0 :         exit_program(1);
    1159             :     }
    1160             : 
    1161           0 :     while ((c = avio_r8(s)) && c != '\n')
    1162           0 :         avio_w8(line, c);
    1163           0 :     avio_w8(line, 0);
    1164           0 :     avio_close_dyn_buf(line, &buf);
    1165             : 
    1166           0 :     return buf;
    1167             : }
    1168             : 
    1169           0 : static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
    1170             : {
    1171           0 :     int i, ret = -1;
    1172             :     char filename[1000];
    1173           0 :     const char *base[3] = { getenv("AVCONV_DATADIR"),
    1174           0 :                             getenv("HOME"),
    1175             :                             AVCONV_DATADIR,
    1176             :                             };
    1177             : 
    1178           0 :     for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
    1179           0 :         if (!base[i])
    1180           0 :             continue;
    1181           0 :         if (codec_name) {
    1182           0 :             snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
    1183             :                      i != 1 ? "" : "/.avconv", codec_name, preset_name);
    1184           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1185             :         }
    1186           0 :         if (ret < 0) {
    1187           0 :             snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
    1188             :                      i != 1 ? "" : "/.avconv", preset_name);
    1189           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1190             :         }
    1191             :     }
    1192           0 :     return ret;
    1193             : }
    1194             : 
    1195        5202 : static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
    1196             : {
    1197        5202 :     enum AVMediaType type = ost->st->codecpar->codec_type;
    1198        5202 :     char *codec_name = NULL;
    1199             : 
    1200        5202 :     if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
    1201        5192 :         MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
    1202        5192 :         if (!codec_name) {
    1203        4804 :             ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
    1204        2402 :                                                          NULL, ost->st->codecpar->codec_type);
    1205        2402 :             ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
    1206        2402 :             if (!ost->enc) {
    1207           0 :                 av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
    1208             :                        "output stream #%d:%d. Default encoder for format %s (codec %s) is "
    1209             :                        "probably disabled. Please choose an encoder manually.\n",
    1210           0 :                        ost->file_index, ost->index, s->oformat->name,
    1211           0 :                        avcodec_get_name(ost->st->codecpar->codec_id));
    1212           0 :                 return AVERROR_ENCODER_NOT_FOUND;
    1213             :             }
    1214        2790 :         } else if (!strcmp(codec_name, "copy"))
    1215         164 :             ost->stream_copy = 1;
    1216             :         else {
    1217        2626 :             ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
    1218        2626 :             ost->st->codecpar->codec_id = ost->enc->id;
    1219             :         }
    1220        5192 :         ost->encoding_needed = !ost->stream_copy;
    1221             :     } else {
    1222             :         /* no encoding supported for other media types */
    1223          10 :         ost->stream_copy     = 1;
    1224          10 :         ost->encoding_needed = 0;
    1225             :     }
    1226             : 
    1227        5202 :     return 0;
    1228             : }
    1229             : 
    1230        5202 : static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
    1231             : {
    1232             :     OutputStream *ost;
    1233        5202 :     AVStream *st = avformat_new_stream(oc, NULL);
    1234        5202 :     int idx      = oc->nb_streams - 1, ret = 0;
    1235        5202 :     const char *bsfs = NULL, *time_base = NULL;
    1236        5202 :     char *next, *codec_tag = NULL;
    1237        5202 :     double qscale = -1;
    1238             :     int i;
    1239             : 
    1240        5202 :     if (!st) {
    1241           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
    1242           0 :         exit_program(1);
    1243             :     }
    1244             : 
    1245        5202 :     if (oc->nb_streams - 1 < o->nb_streamid_map)
    1246           0 :         st->id = o->streamid_map[oc->nb_streams - 1];
    1247             : 
    1248        5202 :     GROW_ARRAY(output_streams, nb_output_streams);
    1249        5202 :     if (!(ost = av_mallocz(sizeof(*ost))))
    1250           0 :         exit_program(1);
    1251        5202 :     output_streams[nb_output_streams - 1] = ost;
    1252             : 
    1253        5202 :     ost->file_index = nb_output_files - 1;
    1254        5202 :     ost->index      = idx;
    1255        5202 :     ost->st         = st;
    1256        5202 :     st->codecpar->codec_type = type;
    1257             : 
    1258        5202 :     ret = choose_encoder(o, oc, ost);
    1259        5202 :     if (ret < 0) {
    1260           0 :         av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
    1261             :                "%d:%d\n", ost->file_index, ost->index);
    1262           0 :         exit_program(1);
    1263             :     }
    1264             : 
    1265        5202 :     ost->enc_ctx = avcodec_alloc_context3(ost->enc);
    1266        5202 :     if (!ost->enc_ctx) {
    1267           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
    1268           0 :         exit_program(1);
    1269             :     }
    1270        5202 :     ost->enc_ctx->codec_type = type;
    1271             : 
    1272        5202 :     ost->ref_par = avcodec_parameters_alloc();
    1273        5202 :     if (!ost->ref_par) {
    1274           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding parameters.\n");
    1275           0 :         exit_program(1);
    1276             :     }
    1277             : 
    1278        5202 :     if (ost->enc) {
    1279        5028 :         AVIOContext *s = NULL;
    1280        5028 :         char *buf = NULL, *arg = NULL, *preset = NULL;
    1281             : 
    1282        5028 :         ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
    1283             : 
    1284        5028 :         MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
    1285        5028 :         if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
    1286             :             do  {
    1287           0 :                 buf = get_line(s);
    1288           0 :                 if (!buf[0] || buf[0] == '#') {
    1289           0 :                     av_free(buf);
    1290           0 :                     continue;
    1291             :                 }
    1292           0 :                 if (!(arg = strchr(buf, '='))) {
    1293           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
    1294           0 :                     exit_program(1);
    1295             :                 }
    1296           0 :                 *arg++ = 0;
    1297           0 :                 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
    1298           0 :                 av_free(buf);
    1299           0 :             } while (!s->eof_reached);
    1300           0 :             avio_closep(&s);
    1301             :         }
    1302        5028 :         if (ret) {
    1303           0 :             av_log(NULL, AV_LOG_FATAL,
    1304             :                    "Preset %s specified for stream %d:%d, but could not be opened.\n",
    1305             :                    preset, ost->file_index, ost->index);
    1306           0 :             exit_program(1);
    1307             :         }
    1308             :     } else {
    1309         174 :         ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
    1310             :     }
    1311             : 
    1312        5202 :     MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
    1313        5202 :     if (time_base) {
    1314             :         AVRational q;
    1315           0 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1316           0 :             q.num <= 0 || q.den <= 0) {
    1317           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1318           0 :             exit_program(1);
    1319             :         }
    1320           0 :         st->time_base = q;
    1321             :     }
    1322             : 
    1323        5202 :     ost->max_frames = INT64_MAX;
    1324        5202 :     MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
    1325        8599 :     for (i = 0; i<o->nb_max_frames; i++) {
    1326        3403 :         char *p = o->max_frames[i].specifier;
    1327        3403 :         if (!*p && type != AVMEDIA_TYPE_VIDEO) {
    1328           6 :             av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
    1329           6 :             break;
    1330             :         }
    1331             :     }
    1332             : 
    1333        5202 :     ost->copy_prior_start = -1;
    1334        5202 :     MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
    1335             : 
    1336        5202 :     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
    1337       10411 :     while (bsfs && *bsfs) {
    1338             :         const AVBitStreamFilter *filter;
    1339             :         char *bsf, *bsf_options_str, *bsf_name;
    1340             : 
    1341           7 :         bsf = av_get_token(&bsfs, ",");
    1342           7 :         if (!bsf)
    1343           0 :             exit_program(1);
    1344           7 :         bsf_name = av_strtok(bsf, "=", &bsf_options_str);
    1345           7 :         if (!bsf_name)
    1346           0 :             exit_program(1);
    1347             : 
    1348           7 :         filter = av_bsf_get_by_name(bsf_name);
    1349           7 :         if (!filter) {
    1350           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
    1351           0 :             exit_program(1);
    1352             :         }
    1353             : 
    1354           7 :         ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
    1355           7 :                                         ost->nb_bitstream_filters + 1,
    1356             :                                         sizeof(*ost->bsf_ctx));
    1357           7 :         if (!ost->bsf_ctx)
    1358           0 :             exit_program(1);
    1359             : 
    1360           7 :         ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
    1361           7 :         if (ret < 0) {
    1362           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
    1363           0 :             exit_program(1);
    1364             :         }
    1365             : 
    1366           7 :         ost->nb_bitstream_filters++;
    1367             : 
    1368           7 :         if (bsf_options_str && filter->priv_class) {
    1369           3 :             const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
    1370           3 :             const char * shorthand[2] = {NULL};
    1371             : 
    1372           3 :             if (opt)
    1373           3 :                 shorthand[0] = opt->name;
    1374             : 
    1375           3 :             ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
    1376           3 :             if (ret < 0) {
    1377           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
    1378           0 :                 exit_program(1);
    1379             :             }
    1380             :         }
    1381           7 :         av_freep(&bsf);
    1382             : 
    1383           7 :         if (*bsfs)
    1384           0 :             bsfs++;
    1385             :     }
    1386        5202 :     if (ost->nb_bitstream_filters) {
    1387           7 :         ost->bsf_extradata_updated = av_mallocz_array(ost->nb_bitstream_filters, sizeof(*ost->bsf_extradata_updated));
    1388           7 :         if (!ost->bsf_extradata_updated) {
    1389           0 :             av_log(NULL, AV_LOG_FATAL, "Bitstream filter memory allocation failed\n");
    1390           0 :             exit_program(1);
    1391             :         }
    1392             :     }
    1393             : 
    1394        5202 :     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
    1395        5202 :     if (codec_tag) {
    1396           0 :         uint32_t tag = strtol(codec_tag, &next, 0);
    1397           0 :         if (*next)
    1398           0 :             tag = AV_RL32(codec_tag);
    1399           0 :         ost->st->codecpar->codec_tag =
    1400           0 :         ost->enc_ctx->codec_tag = tag;
    1401             :     }
    1402             : 
    1403        5202 :     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
    1404        5202 :     if (qscale >= 0) {
    1405         215 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
    1406         215 :         ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
    1407             :     }
    1408             : 
    1409        5202 :     MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
    1410        5202 :     ost->disposition = av_strdup(ost->disposition);
    1411             : 
    1412        5202 :     ost->max_muxing_queue_size = 128;
    1413        5202 :     MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
    1414        5202 :     ost->max_muxing_queue_size *= sizeof(AVPacket);
    1415             : 
    1416        5202 :     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
    1417        1876 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    1418             : 
    1419        5202 :     av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
    1420             : 
    1421        5202 :     av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
    1422        5202 :     if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
    1423          49 :         av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
    1424             : 
    1425        5202 :     av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
    1426             : 
    1427        5202 :     ost->source_index = source_index;
    1428        5202 :     if (source_index >= 0) {
    1429        5157 :         ost->sync_ist = input_streams[source_index];
    1430        5157 :         input_streams[source_index]->discard = 0;
    1431        5157 :         input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
    1432             :     }
    1433        5202 :     ost->last_mux_dts = AV_NOPTS_VALUE;
    1434             : 
    1435        5202 :     ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
    1436        5202 :     if (!ost->muxing_queue)
    1437           0 :         exit_program(1);
    1438             : 
    1439        5202 :     return ost;
    1440             : }
    1441             : 
    1442           0 : static void parse_matrix_coeffs(uint16_t *dest, const char *str)
    1443             : {
    1444             :     int i;
    1445           0 :     const char *p = str;
    1446           0 :     for (i = 0;; i++) {
    1447           0 :         dest[i] = atoi(p);
    1448           0 :         if (i == 63)
    1449           0 :             break;
    1450           0 :         p = strchr(p, ',');
    1451           0 :         if (!p) {
    1452           0 :             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
    1453           0 :             exit_program(1);
    1454             :         }
    1455           0 :         p++;
    1456             :     }
    1457           0 : }
    1458             : 
    1459             : /* read file contents into a string */
    1460          24 : static uint8_t *read_file(const char *filename)
    1461             : {
    1462          24 :     AVIOContext *pb      = NULL;
    1463          24 :     AVIOContext *dyn_buf = NULL;
    1464          24 :     int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
    1465             :     uint8_t buf[1024], *str;
    1466             : 
    1467          24 :     if (ret < 0) {
    1468           0 :         av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
    1469           0 :         return NULL;
    1470             :     }
    1471             : 
    1472          24 :     ret = avio_open_dyn_buf(&dyn_buf);
    1473          24 :     if (ret < 0) {
    1474           0 :         avio_closep(&pb);
    1475           0 :         return NULL;
    1476             :     }
    1477          72 :     while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
    1478          24 :         avio_write(dyn_buf, buf, ret);
    1479          24 :     avio_w8(dyn_buf, 0);
    1480          24 :     avio_closep(&pb);
    1481             : 
    1482          24 :     ret = avio_close_dyn_buf(dyn_buf, &str);
    1483          24 :     if (ret < 0)
    1484           0 :         return NULL;
    1485          24 :     return str;
    1486             : }
    1487             : 
    1488        5000 : static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
    1489             :                              OutputStream *ost)
    1490             : {
    1491        5000 :     AVStream *st = ost->st;
    1492             : 
    1493        5000 :     if (ost->filters_script && ost->filters) {
    1494           0 :         av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
    1495             :                "output stream #%d:%d.\n", nb_output_files, st->index);
    1496           0 :         exit_program(1);
    1497             :     }
    1498             : 
    1499        5000 :     if (ost->filters_script)
    1500           4 :         return read_file(ost->filters_script);
    1501        4996 :     else if (ost->filters)
    1502        2097 :         return av_strdup(ost->filters);
    1503             : 
    1504        2899 :     return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
    1505             :                      "null" : "anull");
    1506             : }
    1507             : 
    1508         158 : static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
    1509             :                                      const OutputStream *ost, enum AVMediaType type)
    1510             : {
    1511         158 :     if (ost->filters_script || ost->filters) {
    1512           0 :         av_log(NULL, AV_LOG_ERROR,
    1513             :                "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
    1514             :                "Filtering and streamcopy cannot be used together.\n",
    1515           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    1516           0 :                ost->filters ? ost->filters : ost->filters_script,
    1517             :                av_get_media_type_string(type), ost->file_index, ost->index);
    1518           0 :         exit_program(1);
    1519             :     }
    1520         158 : }
    1521             : 
    1522        4083 : static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1523             : {
    1524             :     AVStream *st;
    1525             :     OutputStream *ost;
    1526             :     AVCodecContext *video_enc;
    1527        4083 :     char *frame_rate = NULL, *frame_aspect_ratio = NULL;
    1528             : 
    1529        4083 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
    1530        4083 :     st  = ost->st;
    1531        4083 :     video_enc = ost->enc_ctx;
    1532             : 
    1533        4083 :     MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
    1534        4083 :     if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
    1535           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
    1536           0 :         exit_program(1);
    1537             :     }
    1538        4083 :     if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
    1539           0 :         av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
    1540             : 
    1541        4083 :     MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
    1542        4083 :     if (frame_aspect_ratio) {
    1543             :         AVRational q;
    1544           0 :         if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
    1545           0 :             q.num <= 0 || q.den <= 0) {
    1546           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
    1547           0 :             exit_program(1);
    1548             :         }
    1549           0 :         ost->frame_aspect_ratio = q;
    1550             :     }
    1551             : 
    1552        4083 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1553        4083 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1554             : 
    1555        4083 :     if (!ost->stream_copy) {
    1556        4007 :         const char *p = NULL;
    1557        4007 :         char *frame_size = NULL;
    1558        4007 :         char *frame_pix_fmt = NULL;
    1559        4007 :         char *intra_matrix = NULL, *inter_matrix = NULL;
    1560        4007 :         char *chroma_intra_matrix = NULL;
    1561        4007 :         int do_pass = 0;
    1562             :         int i;
    1563             : 
    1564        4007 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1565        4007 :         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
    1566           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1567           0 :             exit_program(1);
    1568             :         }
    1569             : 
    1570        4007 :         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
    1571        4007 :         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
    1572        4007 :         if (frame_pix_fmt && *frame_pix_fmt == '+') {
    1573           0 :             ost->keep_pix_fmt = 1;
    1574           0 :             if (!*++frame_pix_fmt)
    1575           0 :                 frame_pix_fmt = NULL;
    1576             :         }
    1577        4007 :         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
    1578           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
    1579           0 :             exit_program(1);
    1580             :         }
    1581        4007 :         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
    1582             : 
    1583        4007 :         if (intra_only)
    1584           0 :             video_enc->gop_size = 0;
    1585        4007 :         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
    1586        4007 :         if (intra_matrix) {
    1587           0 :             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
    1588           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1589           0 :                 exit_program(1);
    1590             :             }
    1591           0 :             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
    1592             :         }
    1593        4007 :         MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
    1594        4007 :         if (chroma_intra_matrix) {
    1595           0 :             uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
    1596           0 :             if (!p) {
    1597           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1598           0 :                 exit_program(1);
    1599             :             }
    1600           0 :             av_codec_set_chroma_intra_matrix(video_enc, p);
    1601           0 :             parse_matrix_coeffs(p, chroma_intra_matrix);
    1602             :         }
    1603        4007 :         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
    1604        4007 :         if (inter_matrix) {
    1605           0 :             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
    1606           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
    1607           0 :                 exit_program(1);
    1608             :             }
    1609           0 :             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
    1610             :         }
    1611             : 
    1612        4007 :         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
    1613        4007 :         for (i = 0; p; i++) {
    1614             :             int start, end, q;
    1615           0 :             int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
    1616           0 :             if (e != 3) {
    1617           0 :                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
    1618           0 :                 exit_program(1);
    1619             :             }
    1620           0 :             video_enc->rc_override =
    1621           0 :                 av_realloc_array(video_enc->rc_override,
    1622           0 :                                  i + 1, sizeof(RcOverride));
    1623           0 :             if (!video_enc->rc_override) {
    1624           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
    1625           0 :                 exit_program(1);
    1626             :             }
    1627           0 :             video_enc->rc_override[i].start_frame = start;
    1628           0 :             video_enc->rc_override[i].end_frame   = end;
    1629           0 :             if (q > 0) {
    1630           0 :                 video_enc->rc_override[i].qscale         = q;
    1631           0 :                 video_enc->rc_override[i].quality_factor = 1.0;
    1632             :             }
    1633             :             else {
    1634           0 :                 video_enc->rc_override[i].qscale         = 0;
    1635           0 :                 video_enc->rc_override[i].quality_factor = -q/100.0;
    1636             :             }
    1637           0 :             p = strchr(p, '/');
    1638           0 :             if (p) p++;
    1639             :         }
    1640        4007 :         video_enc->rc_override_count = i;
    1641             : 
    1642        4007 :         if (do_psnr)
    1643           0 :             video_enc->flags|= AV_CODEC_FLAG_PSNR;
    1644             : 
    1645             :         /* two pass mode */
    1646        4007 :         MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
    1647        4007 :         if (do_pass) {
    1648           0 :             if (do_pass & 1) {
    1649           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS1;
    1650           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
    1651             :             }
    1652           0 :             if (do_pass & 2) {
    1653           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS2;
    1654           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
    1655             :             }
    1656             :         }
    1657             : 
    1658        4007 :         MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
    1659        4007 :         if (ost->logfile_prefix &&
    1660           0 :             !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
    1661           0 :             exit_program(1);
    1662             : 
    1663        4007 :         if (do_pass) {
    1664             :             char logfilename[1024];
    1665             :             FILE *f;
    1666             : 
    1667           0 :             snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
    1668           0 :                      ost->logfile_prefix ? ost->logfile_prefix :
    1669             :                                            DEFAULT_PASS_LOGFILENAME_PREFIX,
    1670             :                      i);
    1671           0 :             if (!strcmp(ost->enc->name, "libx264")) {
    1672           0 :                 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
    1673             :             } else {
    1674           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
    1675           0 :                     char  *logbuffer = read_file(logfilename);
    1676             : 
    1677           0 :                     if (!logbuffer) {
    1678           0 :                         av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
    1679             :                                logfilename);
    1680           0 :                         exit_program(1);
    1681             :                     }
    1682           0 :                     video_enc->stats_in = logbuffer;
    1683             :                 }
    1684           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
    1685           0 :                     f = av_fopen_utf8(logfilename, "wb");
    1686           0 :                     if (!f) {
    1687           0 :                         av_log(NULL, AV_LOG_FATAL,
    1688             :                                "Cannot write log file '%s' for pass-1 encoding: %s\n",
    1689           0 :                                logfilename, strerror(errno));
    1690           0 :                         exit_program(1);
    1691             :                     }
    1692           0 :                     ost->logfile = f;
    1693             :                 }
    1694             :             }
    1695             :         }
    1696             : 
    1697        4007 :         MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
    1698        4007 :         if (ost->forced_keyframes)
    1699           1 :             ost->forced_keyframes = av_strdup(ost->forced_keyframes);
    1700             : 
    1701        4007 :         MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
    1702             : 
    1703        4007 :         ost->top_field_first = -1;
    1704        4007 :         MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
    1705             : 
    1706             : 
    1707        4007 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1708        4007 :         if (!ost->avfilter)
    1709           0 :             exit_program(1);
    1710             :     } else {
    1711          76 :         MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
    1712             :     }
    1713             : 
    1714        4083 :     if (ost->stream_copy)
    1715          76 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
    1716             : 
    1717        4083 :     return ost;
    1718             : }
    1719             : 
    1720        1075 : static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1721             : {
    1722             :     int n;
    1723             :     AVStream *st;
    1724             :     OutputStream *ost;
    1725             :     AVCodecContext *audio_enc;
    1726             : 
    1727        1075 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
    1728        1075 :     st  = ost->st;
    1729             : 
    1730        1075 :     audio_enc = ost->enc_ctx;
    1731        1075 :     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
    1732             : 
    1733        1075 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1734        1075 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1735             : 
    1736        1075 :     if (!ost->stream_copy) {
    1737         993 :         char *sample_fmt = NULL;
    1738             : 
    1739         993 :         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
    1740             : 
    1741         993 :         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
    1742         993 :         if (sample_fmt &&
    1743           0 :             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
    1744           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
    1745           0 :             exit_program(1);
    1746             :         }
    1747             : 
    1748         993 :         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
    1749             : 
    1750         993 :         MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
    1751         993 :         ost->apad = av_strdup(ost->apad);
    1752             : 
    1753         993 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1754         993 :         if (!ost->avfilter)
    1755           0 :             exit_program(1);
    1756             : 
    1757             :         /* check for channel mapping for this audio stream */
    1758         999 :         for (n = 0; n < o->nb_audio_channel_maps; n++) {
    1759           6 :             AudioChannelMap *map = &o->audio_channel_maps[n];
    1760          12 :             if ((map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
    1761           6 :                 (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
    1762             :                 InputStream *ist;
    1763             : 
    1764           6 :                 if (map->channel_idx == -1) {
    1765           1 :                     ist = NULL;
    1766           5 :                 } else if (ost->source_index < 0) {
    1767           0 :                     av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
    1768           0 :                            ost->file_index, ost->st->index);
    1769           0 :                     continue;
    1770             :                 } else {
    1771           5 :                     ist = input_streams[ost->source_index];
    1772             :                 }
    1773             : 
    1774           6 :                 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
    1775           6 :                     if (av_reallocp_array(&ost->audio_channels_map,
    1776           6 :                                           ost->audio_channels_mapped + 1,
    1777             :                                           sizeof(*ost->audio_channels_map)
    1778             :                                           ) < 0 )
    1779           0 :                         exit_program(1);
    1780             : 
    1781           6 :                     ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
    1782             :                 }
    1783             :             }
    1784             :         }
    1785             :     }
    1786             : 
    1787        1075 :     if (ost->stream_copy)
    1788          82 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
    1789             : 
    1790        1075 :     return ost;
    1791             : }
    1792             : 
    1793           9 : static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1794             : {
    1795             :     OutputStream *ost;
    1796             : 
    1797           9 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
    1798           9 :     if (!ost->stream_copy) {
    1799           0 :         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
    1800           0 :         exit_program(1);
    1801             :     }
    1802             : 
    1803           9 :     return ost;
    1804             : }
    1805             : 
    1806           0 : static OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1807             : {
    1808             :     OutputStream *ost;
    1809             : 
    1810           0 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
    1811           0 :     if (!ost->stream_copy) {
    1812           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
    1813           0 :         exit_program(1);
    1814             :     }
    1815             : 
    1816           0 :     return ost;
    1817             : }
    1818             : 
    1819           1 : static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1820             : {
    1821           1 :     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
    1822           1 :     ost->stream_copy = 1;
    1823           1 :     ost->finished    = 1;
    1824           1 :     return ost;
    1825             : }
    1826             : 
    1827          34 : static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1828             : {
    1829             :     AVStream *st;
    1830             :     OutputStream *ost;
    1831             :     AVCodecContext *subtitle_enc;
    1832             : 
    1833          34 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
    1834          34 :     st  = ost->st;
    1835          34 :     subtitle_enc = ost->enc_ctx;
    1836             : 
    1837          34 :     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
    1838             : 
    1839          34 :     MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
    1840             : 
    1841          34 :     if (!ost->stream_copy) {
    1842          28 :         char *frame_size = NULL;
    1843             : 
    1844          28 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1845          28 :         if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
    1846           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1847           0 :             exit_program(1);
    1848             :         }
    1849             :     }
    1850             : 
    1851          34 :     return ost;
    1852             : }
    1853             : 
    1854             : /* arg format is "output-stream-index:streamid-value". */
    1855           0 : static int opt_streamid(void *optctx, const char *opt, const char *arg)
    1856             : {
    1857           0 :     OptionsContext *o = optctx;
    1858             :     int idx;
    1859             :     char *p;
    1860             :     char idx_str[16];
    1861             : 
    1862           0 :     av_strlcpy(idx_str, arg, sizeof(idx_str));
    1863           0 :     p = strchr(idx_str, ':');
    1864           0 :     if (!p) {
    1865           0 :         av_log(NULL, AV_LOG_FATAL,
    1866             :                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
    1867             :                arg, opt);
    1868           0 :         exit_program(1);
    1869             :     }
    1870           0 :     *p++ = '\0';
    1871           0 :     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
    1872           0 :     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
    1873           0 :     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
    1874           0 :     return 0;
    1875             : }
    1876             : 
    1877          10 : static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
    1878             : {
    1879          10 :     AVFormatContext *is = ifile->ctx;
    1880          10 :     AVFormatContext *os = ofile->ctx;
    1881             :     AVChapter **tmp;
    1882             :     int i;
    1883             : 
    1884          10 :     tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
    1885          10 :     if (!tmp)
    1886           0 :         return AVERROR(ENOMEM);
    1887          10 :     os->chapters = tmp;
    1888             : 
    1889          20 :     for (i = 0; i < is->nb_chapters; i++) {
    1890          10 :         AVChapter *in_ch = is->chapters[i], *out_ch;
    1891          10 :         int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
    1892          10 :         int64_t ts_off   = av_rescale_q(start_time - ifile->ts_offset,
    1893          10 :                                        AV_TIME_BASE_Q, in_ch->time_base);
    1894          10 :         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
    1895           0 :                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
    1896             : 
    1897             : 
    1898          10 :         if (in_ch->end < ts_off)
    1899           0 :             continue;
    1900          10 :         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
    1901           0 :             break;
    1902             : 
    1903          10 :         out_ch = av_mallocz(sizeof(AVChapter));
    1904          10 :         if (!out_ch)
    1905           0 :             return AVERROR(ENOMEM);
    1906             : 
    1907          10 :         out_ch->id        = in_ch->id;
    1908          10 :         out_ch->time_base = in_ch->time_base;
    1909          10 :         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
    1910          10 :         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
    1911             : 
    1912          10 :         if (copy_metadata)
    1913          10 :             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
    1914             : 
    1915          10 :         os->chapters[os->nb_chapters++] = out_ch;
    1916             :     }
    1917          10 :     return 0;
    1918             : }
    1919             : 
    1920           0 : static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
    1921             : {
    1922             :     int i, err;
    1923           0 :     AVFormatContext *ic = avformat_alloc_context();
    1924             : 
    1925           0 :     ic->interrupt_callback = int_cb;
    1926           0 :     err = avformat_open_input(&ic, filename, NULL, NULL);
    1927           0 :     if (err < 0)
    1928           0 :         return err;
    1929             :     /* copy stream format */
    1930           0 :     for(i=0;i<ic->nb_streams;i++) {
    1931             :         AVStream *st;
    1932             :         OutputStream *ost;
    1933             :         AVCodec *codec;
    1934             :         const char *enc_config;
    1935             : 
    1936           0 :         codec = avcodec_find_encoder(ic->streams[i]->codecpar->codec_id);
    1937           0 :         if (!codec) {
    1938           0 :             av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codecpar->codec_id);
    1939           0 :             return AVERROR(EINVAL);
    1940             :         }
    1941           0 :         if (codec->type == AVMEDIA_TYPE_AUDIO)
    1942           0 :             opt_audio_codec(o, "c:a", codec->name);
    1943           0 :         else if (codec->type == AVMEDIA_TYPE_VIDEO)
    1944           0 :             opt_video_codec(o, "c:v", codec->name);
    1945           0 :         ost   = new_output_stream(o, s, codec->type, -1);
    1946           0 :         st    = ost->st;
    1947             : 
    1948           0 :         avcodec_get_context_defaults3(st->codec, codec);
    1949           0 :         enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
    1950           0 :         if (enc_config) {
    1951           0 :             AVDictionary *opts = NULL;
    1952           0 :             av_dict_parse_string(&opts, enc_config, "=", ",", 0);
    1953           0 :             av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
    1954           0 :             av_dict_free(&opts);
    1955             :         }
    1956             : 
    1957           0 :         if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
    1958           0 :             choose_sample_fmt(st, codec);
    1959           0 :         else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
    1960           0 :             choose_pixel_fmt(st, st->codec, codec, st->codecpar->format);
    1961           0 :         avcodec_copy_context(ost->enc_ctx, st->codec);
    1962           0 :         if (enc_config)
    1963           0 :             av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
    1964             :     }
    1965             : 
    1966           0 :     avformat_close_input(&ic);
    1967           0 :     return err;
    1968             : }
    1969             : 
    1970          44 : static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
    1971             :                                AVFormatContext *oc)
    1972             : {
    1973             :     OutputStream *ost;
    1974             : 
    1975          44 :     switch (ofilter->type) {
    1976          31 :     case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
    1977          13 :     case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
    1978             :     default:
    1979           0 :         av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
    1980             :                "currently.\n");
    1981           0 :         exit_program(1);
    1982             :     }
    1983             : 
    1984          44 :     ost->source_index = -1;
    1985          44 :     ost->filter       = ofilter;
    1986             : 
    1987          44 :     ofilter->ost      = ost;
    1988          44 :     ofilter->format   = -1;
    1989             : 
    1990          44 :     if (ost->stream_copy) {
    1991           0 :         av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
    1992             :                "which is fed from a complex filtergraph. Filtering and streamcopy "
    1993             :                "cannot be used together.\n", ost->file_index, ost->index);
    1994           0 :         exit_program(1);
    1995             :     }
    1996             : 
    1997          44 :     if (ost->avfilter && (ost->filters || ost->filters_script)) {
    1998           0 :         const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
    1999           0 :         av_log(NULL, AV_LOG_ERROR,
    2000             :                "%s '%s' was specified through the %s option "
    2001             :                "for output stream %d:%d, which is fed from a complex filtergraph.\n"
    2002             :                "%s and -filter_complex cannot be used together for the same stream.\n",
    2003           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    2004           0 :                ost->filters ? ost->filters : ost->filters_script,
    2005             :                opt, ost->file_index, ost->index, opt);
    2006           0 :         exit_program(1);
    2007             :     }
    2008             : 
    2009          44 :     avfilter_inout_free(&ofilter->out_tmp);
    2010          44 : }
    2011             : 
    2012        5070 : static int init_complex_filters(void)
    2013             : {
    2014        5070 :     int i, ret = 0;
    2015             : 
    2016        5112 :     for (i = 0; i < nb_filtergraphs; i++) {
    2017          42 :         ret = init_complex_filtergraph(filtergraphs[i]);
    2018          42 :         if (ret < 0)
    2019           0 :             return ret;
    2020             :     }
    2021        5070 :     return 0;
    2022             : }
    2023             : 
    2024        5070 : static int configure_complex_filters(void)
    2025             : {
    2026        5070 :     int i, j, ret = 0;
    2027             : 
    2028       10068 :     for (i = 0; i < nb_filtergraphs; i++) {
    2029        4998 :         FilterGraph *fg = filtergraphs[i];
    2030             : 
    2031        4998 :         if (filtergraph_is_simple(fg))
    2032        4956 :             continue;
    2033             : 
    2034          98 :         for (j = 0; j < fg->nb_inputs; j++) {
    2035          56 :             ret = ifilter_parameters_from_decoder(fg->inputs[j],
    2036          56 :                                                   fg->inputs[j]->ist->dec_ctx);
    2037          56 :             if (ret < 0) {
    2038           0 :                 av_log(NULL, AV_LOG_ERROR,
    2039             :                        "Error initializing filtergraph %d input %d\n", i, j);
    2040           0 :                 return ret;
    2041             :             }
    2042             :         }
    2043             : 
    2044          42 :         ret = configure_filtergraph(filtergraphs[i]);
    2045          42 :         if (ret < 0)
    2046           0 :             return ret;
    2047             :     }
    2048        5070 :     return 0;
    2049             : }
    2050             : 
    2051        5071 : static int open_output_file(OptionsContext *o, const char *filename)
    2052             : {
    2053             :     AVFormatContext *oc;
    2054             :     int i, j, err;
    2055             :     AVOutputFormat *file_oformat;
    2056             :     OutputFile *of;
    2057             :     OutputStream *ost;
    2058             :     InputStream  *ist;
    2059        5071 :     AVDictionary *unused_opts = NULL;
    2060        5071 :     AVDictionaryEntry *e = NULL;
    2061        5071 :     int format_flags = 0;
    2062             : 
    2063        5071 :     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
    2064           0 :         o->stop_time = INT64_MAX;
    2065           0 :         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
    2066             :     }
    2067             : 
    2068        5071 :     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
    2069           0 :         int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
    2070           0 :         if (o->stop_time <= start_time) {
    2071           0 :             av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
    2072           0 :             exit_program(1);
    2073             :         } else {
    2074           0 :             o->recording_time = o->stop_time - start_time;
    2075             :         }
    2076             :     }
    2077             : 
    2078        5071 :     GROW_ARRAY(output_files, nb_output_files);
    2079        5071 :     of = av_mallocz(sizeof(*of));
    2080        5071 :     if (!of)
    2081           0 :         exit_program(1);
    2082        5071 :     output_files[nb_output_files - 1] = of;
    2083             : 
    2084        5071 :     of->ost_index      = nb_output_streams;
    2085        5071 :     of->recording_time = o->recording_time;
    2086        5071 :     of->start_time     = o->start_time;
    2087        5071 :     of->limit_filesize = o->limit_filesize;
    2088        5071 :     of->shortest       = o->shortest;
    2089        5071 :     av_dict_copy(&of->opts, o->g->format_opts, 0);
    2090             : 
    2091        5071 :     if (!strcmp(filename, "-"))
    2092        1962 :         filename = "pipe:";
    2093             : 
    2094        5071 :     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
    2095        5071 :     if (!oc) {
    2096           0 :         print_error(filename, err);
    2097           0 :         exit_program(1);
    2098             :     }
    2099             : 
    2100        5071 :     of->ctx = oc;
    2101        5071 :     if (o->recording_time != INT64_MAX)
    2102         108 :         oc->duration = o->recording_time;
    2103             : 
    2104        5071 :     file_oformat= oc->oformat;
    2105        5071 :     oc->interrupt_callback = int_cb;
    2106             : 
    2107        5071 :     e = av_dict_get(o->g->format_opts, "fflags", NULL, 0);
    2108        5071 :     if (e) {
    2109        4323 :         const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
    2110        4323 :         av_opt_eval_flags(oc, o, e->value, &format_flags);
    2111             :     }
    2112             : 
    2113             :     /* create streams for all unlabeled output pads */
    2114        5114 :     for (i = 0; i < nb_filtergraphs; i++) {
    2115          43 :         FilterGraph *fg = filtergraphs[i];
    2116          88 :         for (j = 0; j < fg->nb_outputs; j++) {
    2117          45 :             OutputFilter *ofilter = fg->outputs[j];
    2118             : 
    2119          45 :             if (!ofilter->out_tmp || ofilter->out_tmp->name)
    2120           3 :                 continue;
    2121             : 
    2122          42 :             switch (ofilter->type) {
    2123          30 :             case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
    2124          12 :             case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
    2125           0 :             case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
    2126             :             }
    2127          42 :             init_output_filter(ofilter, o, oc);
    2128             :         }
    2129             :     }
    2130             : 
    2131             :     /* ffserver seeking with date=... needs a date reference */
    2132        5072 :     if (!strcmp(file_oformat->name, "ffm") &&
    2133           1 :         !(format_flags & AVFMT_FLAG_BITEXACT) &&
    2134           0 :         av_strstart(filename, "http:", NULL)) {
    2135           0 :         int err = parse_option(o, "metadata", "creation_time=now", options);
    2136           0 :         if (err < 0) {
    2137           0 :             print_error(filename, err);
    2138           0 :             exit_program(1);
    2139             :         }
    2140             :     }
    2141             : 
    2142        5072 :     if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
    2143           1 :         av_strstart(filename, "http:", NULL)) {
    2144             :         int j;
    2145             :         /* special case for files sent to ffserver: we get the stream
    2146             :            parameters from ffserver */
    2147           0 :         int err = read_ffserver_streams(o, oc, filename);
    2148           0 :         if (err < 0) {
    2149           0 :             print_error(filename, err);
    2150           0 :             exit_program(1);
    2151             :         }
    2152           0 :         for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
    2153           0 :             ost = output_streams[j];
    2154           0 :             for (i = 0; i < nb_input_streams; i++) {
    2155           0 :                 ist = input_streams[i];
    2156           0 :                 if(ist->st->codecpar->codec_type == ost->st->codecpar->codec_type){
    2157           0 :                     ost->sync_ist= ist;
    2158           0 :                     ost->source_index= i;
    2159           0 :                     if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
    2160           0 :                     if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
    2161           0 :                     ist->discard = 0;
    2162           0 :                     ist->st->discard = ist->user_set_discard;
    2163           0 :                     break;
    2164             :                 }
    2165             :             }
    2166           0 :             if(!ost->sync_ist){
    2167           0 :                 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codecpar->codec_type));
    2168           0 :                 exit_program(1);
    2169             :             }
    2170             :         }
    2171        5071 :     } else if (!o->nb_stream_maps) {
    2172        5043 :         char *subtitle_codec_name = NULL;
    2173             :         /* pick the "best" stream of each type */
    2174             : 
    2175             :         /* video: highest resolution */
    2176        5043 :         if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
    2177        4234 :             int area = 0, idx = -1;
    2178        4234 :             int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
    2179        8731 :             for (i = 0; i < nb_input_streams; i++) {
    2180             :                 int new_area;
    2181        4497 :                 ist = input_streams[i];
    2182        4497 :                 new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames;
    2183        4497 :                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2184           7 :                     new_area = 1;
    2185        4497 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
    2186             :                     new_area > area) {
    2187        4033 :                     if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2188           0 :                         continue;
    2189        4033 :                     area = new_area;
    2190        4033 :                     idx = i;
    2191             :                 }
    2192             :             }
    2193        4234 :             if (idx >= 0)
    2194        4033 :                 new_video_stream(o, oc, idx);
    2195             :         }
    2196             : 
    2197             :         /* audio: most channels */
    2198        5043 :         if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
    2199        4276 :             int best_score = 0, idx = -1;
    2200        8747 :             for (i = 0; i < nb_input_streams; i++) {
    2201             :                 int score;
    2202        4471 :                 ist = input_streams[i];
    2203        4471 :                 score = ist->st->codecpar->channels + 100000000*!!ist->st->codec_info_nb_frames;
    2204        4471 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
    2205             :                     score > best_score) {
    2206        1044 :                     best_score = score;
    2207        1044 :                     idx = i;
    2208             :                 }
    2209             :             }
    2210        4276 :             if (idx >= 0)
    2211        1044 :                 new_audio_stream(o, oc, idx);
    2212             :         }
    2213             : 
    2214             :         /* subtitles: pick first */
    2215        5043 :         MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
    2216        5043 :         if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
    2217          50 :             for (i = 0; i < nb_input_streams; i++)
    2218          43 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
    2219          32 :                     AVCodecDescriptor const *input_descriptor =
    2220          32 :                         avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
    2221          32 :                     AVCodecDescriptor const *output_descriptor = NULL;
    2222          32 :                     AVCodec const *output_codec =
    2223          32 :                         avcodec_find_encoder(oc->oformat->subtitle_codec);
    2224          32 :                     int input_props = 0, output_props = 0;
    2225          32 :                     if (output_codec)
    2226          31 :                         output_descriptor = avcodec_descriptor_get(output_codec->id);
    2227          32 :                     if (input_descriptor)
    2228          32 :                         input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2229          32 :                     if (output_descriptor)
    2230          31 :                         output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2231          58 :                     if (subtitle_codec_name ||
    2232          26 :                         input_props & output_props ||
    2233             :                         // Map dvb teletext which has neither property to any output subtitle encoder
    2234           0 :                         input_descriptor && output_descriptor &&
    2235           0 :                         (!input_descriptor->props ||
    2236           0 :                          !output_descriptor->props)) {
    2237          32 :                         new_subtitle_stream(o, oc, i);
    2238          32 :                         break;
    2239             :                     }
    2240             :                 }
    2241             :         }
    2242             :         /* Data only if codec id match */
    2243        5043 :         if (!o->data_disable ) {
    2244        5043 :             enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
    2245        5043 :             for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
    2246           0 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
    2247           0 :                     && input_streams[i]->st->codecpar->codec_id == codec_id )
    2248           0 :                     new_data_stream(o, oc, i);
    2249             :             }
    2250             :         }
    2251             :     } else {
    2252          78 :         for (i = 0; i < o->nb_stream_maps; i++) {
    2253          50 :             StreamMap *map = &o->stream_maps[i];
    2254             : 
    2255          50 :             if (map->disabled)
    2256           0 :                 continue;
    2257             : 
    2258          50 :             if (map->linklabel) {
    2259             :                 FilterGraph *fg;
    2260           2 :                 OutputFilter *ofilter = NULL;
    2261             :                 int j, k;
    2262             : 
    2263           2 :                 for (j = 0; j < nb_filtergraphs; j++) {
    2264           2 :                     fg = filtergraphs[j];
    2265           2 :                     for (k = 0; k < fg->nb_outputs; k++) {
    2266           2 :                         AVFilterInOut *out = fg->outputs[k]->out_tmp;
    2267           2 :                         if (out && !strcmp(out->name, map->linklabel)) {
    2268           2 :                             ofilter = fg->outputs[k];
    2269           2 :                             goto loop_end;
    2270             :                         }
    2271             :                     }
    2272             :                 }
    2273             : loop_end:
    2274           2 :                 if (!ofilter) {
    2275           0 :                     av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
    2276             :                            "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
    2277           0 :                     exit_program(1);
    2278             :                 }
    2279           2 :                 init_output_filter(ofilter, o, oc);
    2280             :             } else {
    2281          48 :                 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
    2282             : 
    2283          48 :                 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
    2284          48 :                 if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
    2285           0 :                     continue;
    2286          48 :                 if(o->   audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
    2287           0 :                     continue;
    2288          48 :                 if(o->   video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    2289           0 :                     continue;
    2290          48 :                 if(o->    data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
    2291           0 :                     continue;
    2292             : 
    2293          48 :                 ost = NULL;
    2294          48 :                 switch (ist->st->codecpar->codec_type) {
    2295          19 :                 case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
    2296          18 :                 case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
    2297           2 :                 case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
    2298           9 :                 case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
    2299           0 :                 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
    2300             :                 case AVMEDIA_TYPE_UNKNOWN:
    2301           0 :                     if (copy_unknown_streams) {
    2302           0 :                         ost = new_unknown_stream   (o, oc, src_idx);
    2303           0 :                         break;
    2304             :                     }
    2305             :                 default:
    2306           0 :                     av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
    2307             :                            "Cannot map stream #%d:%d - unsupported type.\n",
    2308             :                            map->file_index, map->stream_index);
    2309           0 :                     if (!ignore_unknown_streams) {
    2310           0 :                         av_log(NULL, AV_LOG_FATAL,
    2311             :                                "If you want unsupported types ignored instead "
    2312             :                                "of failing, please use the -ignore_unknown option\n"
    2313             :                                "If you want them copied, please use -copy_unknown\n");
    2314           0 :                         exit_program(1);
    2315             :                     }
    2316             :                 }
    2317          48 :                 if (ost)
    2318          96 :                     ost->sync_ist = input_streams[  input_files[map->sync_file_index]->ist_index
    2319          48 :                                                   + map->sync_stream_index];
    2320             :             }
    2321             :         }
    2322             :     }
    2323             : 
    2324             :     /* handle attached files */
    2325        5072 :     for (i = 0; i < o->nb_attachments; i++) {
    2326             :         AVIOContext *pb;
    2327             :         uint8_t *attachment;
    2328             :         const char *p;
    2329             :         int64_t len;
    2330             : 
    2331           1 :         if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
    2332           0 :             av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
    2333           0 :                    o->attachments[i]);
    2334           0 :             exit_program(1);
    2335             :         }
    2336           1 :         if ((len = avio_size(pb)) <= 0) {
    2337           0 :             av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
    2338           0 :                    o->attachments[i]);
    2339           0 :             exit_program(1);
    2340             :         }
    2341           1 :         if (!(attachment = av_malloc(len))) {
    2342           0 :             av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
    2343           0 :                    o->attachments[i]);
    2344           0 :             exit_program(1);
    2345             :         }
    2346           1 :         avio_read(pb, attachment, len);
    2347             : 
    2348           1 :         ost = new_attachment_stream(o, oc, -1);
    2349           1 :         ost->stream_copy               = 0;
    2350           1 :         ost->attachment_filename       = o->attachments[i];
    2351           1 :         ost->st->codecpar->extradata      = attachment;
    2352           1 :         ost->st->codecpar->extradata_size = len;
    2353             : 
    2354           1 :         p = strrchr(o->attachments[i], '/');
    2355           1 :         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
    2356           1 :         avio_closep(&pb);
    2357             :     }
    2358             : 
    2359             : #if FF_API_LAVF_AVCTX
    2360       10273 :     for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
    2361             :         AVDictionaryEntry *e;
    2362        5202 :         ost = output_streams[i];
    2363             : 
    2364        5202 :         if ((ost->stream_copy || ost->attachment_filename)
    2365         174 :             && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
    2366         118 :             && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
    2367         118 :             if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
    2368           0 :                 exit_program(1);
    2369             :     }
    2370             : #endif
    2371             : 
    2372        5071 :     if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
    2373           0 :         av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
    2374           0 :         av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
    2375           0 :         exit_program(1);
    2376             :     }
    2377             : 
    2378             :     /* check if all codec options have been used */
    2379        5071 :     unused_opts = strip_specifiers(o->g->codec_opts);
    2380       10273 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2381        5202 :         e = NULL;
    2382       23721 :         while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
    2383             :                                 AV_DICT_IGNORE_SUFFIX)))
    2384       13317 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    2385             :     }
    2386             : 
    2387        5071 :     e = NULL;
    2388       10389 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    2389         247 :         const AVClass *class = avcodec_get_class();
    2390         247 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    2391             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2392         247 :         const AVClass *fclass = avformat_get_class();
    2393         247 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    2394             :                                               AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2395         247 :         if (!option || foption)
    2396          10 :             continue;
    2397             : 
    2398             : 
    2399         246 :         if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
    2400           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    2401             :                    "output file #%d (%s) is not an encoding option.\n", e->key,
    2402           0 :                    option->help ? option->help : "", nb_output_files - 1,
    2403             :                    filename);
    2404           0 :             exit_program(1);
    2405             :         }
    2406             : 
    2407             :         // gop_timecode is injected by generic code but not always used
    2408         246 :         if (!strcmp(e->key, "gop_timecode"))
    2409           8 :             continue;
    2410             : 
    2411         476 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    2412             :                "output file #%d (%s) has not been used for any stream. The most "
    2413             :                "likely reason is either wrong type (e.g. a video option with "
    2414             :                "no video streams) or that it is a private option of some encoder "
    2415             :                "which was not actually used for any stream.\n", e->key,
    2416         238 :                option->help ? option->help : "", nb_output_files - 1, filename);
    2417             :     }
    2418        5071 :     av_dict_free(&unused_opts);
    2419             : 
    2420             :     /* set the decoding_needed flags and create simple filtergraphs */
    2421       10273 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2422        5202 :         OutputStream *ost = output_streams[i];
    2423             : 
    2424        5202 :         if (ost->encoding_needed && ost->source_index >= 0) {
    2425        4984 :             InputStream *ist = input_streams[ost->source_index];
    2426        4984 :             ist->decoding_needed |= DECODING_FOR_OST;
    2427             : 
    2428        5992 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
    2429        1008 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
    2430        4956 :                 err = init_simple_filtergraph(ist, ost);
    2431        4956 :                 if (err < 0) {
    2432           0 :                     av_log(NULL, AV_LOG_ERROR,
    2433             :                            "Error initializing a simple filtergraph between streams "
    2434             :                            "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
    2435           0 :                            nb_output_files - 1, ost->st->index);
    2436           0 :                     exit_program(1);
    2437             :                 }
    2438             :             }
    2439             :         }
    2440             : 
    2441             :         /* set the filter output constraints */
    2442        5202 :         if (ost->filter) {
    2443        5000 :             OutputFilter *f = ost->filter;
    2444             :             int count;
    2445        5000 :             switch (ost->enc_ctx->codec_type) {
    2446             :             case AVMEDIA_TYPE_VIDEO:
    2447        4007 :                 f->frame_rate = ost->frame_rate;
    2448        4007 :                 f->width      = ost->enc_ctx->width;
    2449        4007 :                 f->height     = ost->enc_ctx->height;
    2450        4007 :                 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
    2451        2651 :                     f->format = ost->enc_ctx->pix_fmt;
    2452        1356 :                 } else if (ost->enc->pix_fmts) {
    2453         282 :                     count = 0;
    2454        1619 :                     while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
    2455        1055 :                         count++;
    2456         282 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2457         282 :                     if (!f->formats)
    2458           0 :                         exit_program(1);
    2459         282 :                     memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
    2460             :                 }
    2461        4007 :                 break;
    2462             :             case AVMEDIA_TYPE_AUDIO:
    2463         993 :                 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
    2464           0 :                     f->format = ost->enc_ctx->sample_fmt;
    2465         993 :                 } else if (ost->enc->sample_fmts) {
    2466         993 :                     count = 0;
    2467        3010 :                     while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
    2468        1024 :                         count++;
    2469         993 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2470         993 :                     if (!f->formats)
    2471           0 :                         exit_program(1);
    2472         993 :                     memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
    2473             :                 }
    2474         993 :                 if (ost->enc_ctx->sample_rate) {
    2475          26 :                     f->sample_rate = ost->enc_ctx->sample_rate;
    2476         967 :                 } else if (ost->enc->supported_samplerates) {
    2477          22 :                     count = 0;
    2478         261 :                     while (ost->enc->supported_samplerates[count])
    2479         217 :                         count++;
    2480          22 :                     f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
    2481          22 :                     if (!f->sample_rates)
    2482           0 :                         exit_program(1);
    2483          22 :                     memcpy(f->sample_rates, ost->enc->supported_samplerates,
    2484          22 :                            (count + 1) * sizeof(*f->sample_rates));
    2485             :                 }
    2486         993 :                 if (ost->enc_ctx->channels) {
    2487          12 :                     f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
    2488         981 :                 } else if (ost->enc->channel_layouts) {
    2489          33 :                     count = 0;
    2490         271 :                     while (ost->enc->channel_layouts[count])
    2491         205 :                         count++;
    2492          33 :                     f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
    2493          33 :                     if (!f->channel_layouts)
    2494           0 :                         exit_program(1);
    2495          33 :                     memcpy(f->channel_layouts, ost->enc->channel_layouts,
    2496          33 :                            (count + 1) * sizeof(*f->channel_layouts));
    2497             :                 }
    2498         993 :                 break;
    2499             :             }
    2500             :         }
    2501             :     }
    2502             : 
    2503             :     /* check filename in case of an image number is expected */
    2504        5071 :     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
    2505           0 :         if (!av_filename_number_test(oc->filename)) {
    2506           0 :             print_error(oc->filename, AVERROR(EINVAL));
    2507           0 :             exit_program(1);
    2508             :         }
    2509             :     }
    2510             : 
    2511        5071 :     if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
    2512           0 :         av_log(NULL, AV_LOG_ERROR,
    2513             :                "No input streams but output needs an input stream\n");
    2514           0 :         exit_program(1);
    2515             :     }
    2516             : 
    2517        5071 :     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
    2518             :         /* test if it already exists to avoid losing precious files */
    2519        5030 :         assert_file_overwrite(filename);
    2520             : 
    2521             :         /* open the file */
    2522       10060 :         if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
    2523        5030 :                               &oc->interrupt_callback,
    2524             :                               &of->opts)) < 0) {
    2525           0 :             print_error(filename, err);
    2526           0 :             exit_program(1);
    2527             :         }
    2528          41 :     } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
    2529           0 :         assert_file_overwrite(filename);
    2530             : 
    2531        5071 :     if (o->mux_preload) {
    2532           0 :         av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
    2533             :     }
    2534        5071 :     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
    2535             : 
    2536             :     /* copy metadata */
    2537        5076 :     for (i = 0; i < o->nb_metadata_map; i++) {
    2538             :         char *p;
    2539           5 :         int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
    2540             : 
    2541           5 :         if (in_file_index >= nb_input_files) {
    2542           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
    2543           0 :             exit_program(1);
    2544             :         }
    2545           8 :         copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
    2546             :                       in_file_index >= 0 ?
    2547           3 :                       input_files[in_file_index]->ctx : NULL, o);
    2548             :     }
    2549             : 
    2550             :     /* copy chapters */
    2551        5071 :     if (o->chapters_input_file >= nb_input_files) {
    2552        5071 :         if (o->chapters_input_file == INT_MAX) {
    2553             :             /* copy chapters from the first input file that has them*/
    2554        5071 :             o->chapters_input_file = -1;
    2555       10192 :             for (i = 0; i < nb_input_files; i++)
    2556        5131 :                 if (input_files[i]->ctx->nb_chapters) {
    2557          10 :                     o->chapters_input_file = i;
    2558          10 :                     break;
    2559             :                 }
    2560             :         } else {
    2561           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
    2562             :                    o->chapters_input_file);
    2563           0 :             exit_program(1);
    2564             :         }
    2565             :     }
    2566        5071 :     if (o->chapters_input_file >= 0)
    2567          10 :         copy_chapters(input_files[o->chapters_input_file], of,
    2568          10 :                       !o->metadata_chapters_manual);
    2569             : 
    2570             :     /* copy global metadata by default */
    2571        5071 :     if (!o->metadata_global_manual && nb_input_files){
    2572        5061 :         av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
    2573             :                      AV_DICT_DONT_OVERWRITE);
    2574        5061 :         if(o->recording_time != INT64_MAX)
    2575         108 :             av_dict_set(&oc->metadata, "duration", NULL, 0);
    2576        5061 :         av_dict_set(&oc->metadata, "creation_time", NULL, 0);
    2577             :     }
    2578        5071 :     if (!o->metadata_streams_manual)
    2579       10269 :         for (i = of->ost_index; i < nb_output_streams; i++) {
    2580             :             InputStream *ist;
    2581        5199 :             if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
    2582          45 :                 continue;
    2583        5154 :             ist = input_streams[output_streams[i]->source_index];
    2584        5154 :             av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
    2585        5154 :             if (!output_streams[i]->stream_copy) {
    2586        4981 :                 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
    2587        4981 :                 if (ist->autorotate)
    2588        4981 :                     av_dict_set(&output_streams[i]->st->metadata, "rotate", NULL, 0);
    2589             :             }
    2590             :         }
    2591             : 
    2592             :     /* process manually set programs */
    2593        5071 :     for (i = 0; i < o->nb_program; i++) {
    2594           0 :         const char *p = o->program[i].u.str;
    2595           0 :         int progid = i+1;
    2596             :         AVProgram *program;
    2597             : 
    2598           0 :         while(*p) {
    2599           0 :             const char *p2 = av_get_token(&p, ":");
    2600           0 :             const char *to_dealloc = p2;
    2601             :             char *key;
    2602           0 :             if (!p2)
    2603           0 :                 break;
    2604             : 
    2605           0 :             if(*p) p++;
    2606             : 
    2607           0 :             key = av_get_token(&p2, "=");
    2608           0 :             if (!key || !*p2) {
    2609           0 :                 av_freep(&to_dealloc);
    2610           0 :                 av_freep(&key);
    2611           0 :                 break;
    2612             :             }
    2613           0 :             p2++;
    2614             : 
    2615           0 :             if (!strcmp(key, "program_num"))
    2616           0 :                 progid = strtol(p2, NULL, 0);
    2617           0 :             av_freep(&to_dealloc);
    2618           0 :             av_freep(&key);
    2619             :         }
    2620             : 
    2621           0 :         program = av_new_program(oc, progid);
    2622             : 
    2623           0 :         p = o->program[i].u.str;
    2624           0 :         while(*p) {
    2625           0 :             const char *p2 = av_get_token(&p, ":");
    2626           0 :             const char *to_dealloc = p2;
    2627             :             char *key;
    2628           0 :             if (!p2)
    2629           0 :                 break;
    2630           0 :             if(*p) p++;
    2631             : 
    2632           0 :             key = av_get_token(&p2, "=");
    2633           0 :             if (!key) {
    2634           0 :                 av_log(NULL, AV_LOG_FATAL,
    2635             :                        "No '=' character in program string %s.\n",
    2636             :                        p2);
    2637           0 :                 exit_program(1);
    2638             :             }
    2639           0 :             if (!*p2)
    2640           0 :                 exit_program(1);
    2641           0 :             p2++;
    2642             : 
    2643           0 :             if (!strcmp(key, "title")) {
    2644           0 :                 av_dict_set(&program->metadata, "title", p2, 0);
    2645           0 :             } else if (!strcmp(key, "program_num")) {
    2646           0 :             } else if (!strcmp(key, "st")) {
    2647           0 :                 int st_num = strtol(p2, NULL, 0);
    2648           0 :                 av_program_add_stream_index(oc, progid, st_num);
    2649             :             } else {
    2650           0 :                 av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
    2651           0 :                 exit_program(1);
    2652             :             }
    2653           0 :             av_freep(&to_dealloc);
    2654           0 :             av_freep(&key);
    2655             :         }
    2656             :     }
    2657             : 
    2658             :     /* process manually set metadata */
    2659        5230 :     for (i = 0; i < o->nb_metadata; i++) {
    2660             :         AVDictionary **m;
    2661             :         char type, *val;
    2662             :         const char *stream_spec;
    2663         159 :         int index = 0, j, ret = 0;
    2664             : 
    2665         159 :         val = strchr(o->metadata[i].u.str, '=');
    2666         159 :         if (!val) {
    2667           0 :             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
    2668           0 :                    o->metadata[i].u.str);
    2669           0 :             exit_program(1);
    2670             :         }
    2671         159 :         *val++ = 0;
    2672             : 
    2673         159 :         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
    2674         159 :         if (type == 's') {
    2675           7 :             for (j = 0; j < oc->nb_streams; j++) {
    2676           5 :                 ost = output_streams[nb_output_streams - oc->nb_streams + j];
    2677           5 :                 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
    2678           2 :                     av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
    2679           2 :                     if (!strcmp(o->metadata[i].u.str, "rotate")) {
    2680           1 :                         ost->rotate_overridden = 1;
    2681             :                     }
    2682           3 :                 } else if (ret < 0)
    2683           0 :                     exit_program(1);
    2684             :             }
    2685             :         }
    2686             :         else {
    2687         157 :             switch (type) {
    2688             :             case 'g':
    2689         157 :                 m = &oc->metadata;
    2690         157 :                 break;
    2691             :             case 'c':
    2692           0 :                 if (index < 0 || index >= oc->nb_chapters) {
    2693           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
    2694           0 :                     exit_program(1);
    2695             :                 }
    2696           0 :                 m = &oc->chapters[index]->metadata;
    2697           0 :                 break;
    2698             :             case 'p':
    2699           0 :                 if (index < 0 || index >= oc->nb_programs) {
    2700           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
    2701           0 :                     exit_program(1);
    2702             :                 }
    2703           0 :                 m = &oc->programs[index]->metadata;
    2704           0 :                 break;
    2705             :             default:
    2706           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
    2707           0 :                 exit_program(1);
    2708             :             }
    2709         157 :             av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
    2710             :         }
    2711             :     }
    2712             : 
    2713        5071 :     return 0;
    2714             : }
    2715             : 
    2716           0 : static int opt_target(void *optctx, const char *opt, const char *arg)
    2717             : {
    2718           0 :     OptionsContext *o = optctx;
    2719           0 :     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
    2720             :     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
    2721             : 
    2722           0 :     if (!strncmp(arg, "pal-", 4)) {
    2723           0 :         norm = PAL;
    2724           0 :         arg += 4;
    2725           0 :     } else if (!strncmp(arg, "ntsc-", 5)) {
    2726           0 :         norm = NTSC;
    2727           0 :         arg += 5;
    2728           0 :     } else if (!strncmp(arg, "film-", 5)) {
    2729           0 :         norm = FILM;
    2730           0 :         arg += 5;
    2731             :     } else {
    2732             :         /* Try to determine PAL/NTSC by peeking in the input files */
    2733           0 :         if (nb_input_files) {
    2734             :             int i, j, fr;
    2735           0 :             for (j = 0; j < nb_input_files; j++) {
    2736           0 :                 for (i = 0; i < input_files[j]->nb_streams; i++) {
    2737           0 :                     AVStream *st = input_files[j]->ctx->streams[i];
    2738           0 :                     if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
    2739           0 :                         continue;
    2740           0 :                     fr = st->time_base.den * 1000 / st->time_base.num;
    2741           0 :                     if (fr == 25000) {
    2742           0 :                         norm = PAL;
    2743           0 :                         break;
    2744           0 :                     } else if ((fr == 29970) || (fr == 23976)) {
    2745           0 :                         norm = NTSC;
    2746           0 :                         break;
    2747             :                     }
    2748             :                 }
    2749           0 :                 if (norm != UNKNOWN)
    2750           0 :                     break;
    2751             :             }
    2752             :         }
    2753           0 :         if (norm != UNKNOWN)
    2754           0 :             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
    2755             :     }
    2756             : 
    2757           0 :     if (norm == UNKNOWN) {
    2758           0 :         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
    2759           0 :         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
    2760           0 :         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
    2761           0 :         exit_program(1);
    2762             :     }
    2763             : 
    2764           0 :     if (!strcmp(arg, "vcd")) {
    2765           0 :         opt_video_codec(o, "c:v", "mpeg1video");
    2766           0 :         opt_audio_codec(o, "c:a", "mp2");
    2767           0 :         parse_option(o, "f", "vcd", options);
    2768             : 
    2769           0 :         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
    2770           0 :         parse_option(o, "r", frame_rates[norm], options);
    2771           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2772             : 
    2773           0 :         opt_default(NULL, "b:v", "1150000");
    2774           0 :         opt_default(NULL, "maxrate:v", "1150000");
    2775           0 :         opt_default(NULL, "minrate:v", "1150000");
    2776           0 :         opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
    2777             : 
    2778           0 :         opt_default(NULL, "b:a", "224000");
    2779           0 :         parse_option(o, "ar", "44100", options);
    2780           0 :         parse_option(o, "ac", "2", options);
    2781             : 
    2782           0 :         opt_default(NULL, "packetsize", "2324");
    2783           0 :         opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
    2784             : 
    2785             :         /* We have to offset the PTS, so that it is consistent with the SCR.
    2786             :            SCR starts at 36000, but the first two packs contain only padding
    2787             :            and the first pack from the other stream, respectively, may also have
    2788             :            been written before.
    2789             :            So the real data starts at SCR 36000+3*1200. */
    2790           0 :         o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
    2791           0 :     } else if (!strcmp(arg, "svcd")) {
    2792             : 
    2793           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2794           0 :         opt_audio_codec(o, "c:a", "mp2");
    2795           0 :         parse_option(o, "f", "svcd", options);
    2796             : 
    2797           0 :         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
    2798           0 :         parse_option(o, "r", frame_rates[norm], options);
    2799           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2800           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2801             : 
    2802           0 :         opt_default(NULL, "b:v", "2040000");
    2803           0 :         opt_default(NULL, "maxrate:v", "2516000");
    2804           0 :         opt_default(NULL, "minrate:v", "0"); // 1145000;
    2805           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2806           0 :         opt_default(NULL, "scan_offset", "1");
    2807             : 
    2808           0 :         opt_default(NULL, "b:a", "224000");
    2809           0 :         parse_option(o, "ar", "44100", options);
    2810             : 
    2811           0 :         opt_default(NULL, "packetsize", "2324");
    2812             : 
    2813           0 :     } else if (!strcmp(arg, "dvd")) {
    2814             : 
    2815           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2816           0 :         opt_audio_codec(o, "c:a", "ac3");
    2817           0 :         parse_option(o, "f", "dvd", options);
    2818             : 
    2819           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2820           0 :         parse_option(o, "r", frame_rates[norm], options);
    2821           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2822           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2823             : 
    2824           0 :         opt_default(NULL, "b:v", "6000000");
    2825           0 :         opt_default(NULL, "maxrate:v", "9000000");
    2826           0 :         opt_default(NULL, "minrate:v", "0"); // 1500000;
    2827           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2828             : 
    2829           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.
    2830           0 :         opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
    2831             : 
    2832           0 :         opt_default(NULL, "b:a", "448000");
    2833           0 :         parse_option(o, "ar", "48000", options);
    2834             : 
    2835           0 :     } else if (!strncmp(arg, "dv", 2)) {
    2836             : 
    2837           0 :         parse_option(o, "f", "dv", options);
    2838             : 
    2839           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2840           0 :         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
    2841           0 :                           norm == PAL ? "yuv420p" : "yuv411p", options);
    2842           0 :         parse_option(o, "r", frame_rates[norm], options);
    2843             : 
    2844           0 :         parse_option(o, "ar", "48000", options);
    2845           0 :         parse_option(o, "ac", "2", options);
    2846             : 
    2847             :     } else {
    2848           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
    2849           0 :         return AVERROR(EINVAL);
    2850             :     }
    2851             : 
    2852           0 :     av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
    2853           0 :     av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
    2854             : 
    2855           0 :     return 0;
    2856             : }
    2857             : 
    2858           0 : static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
    2859             : {
    2860           0 :     av_free (vstats_filename);
    2861           0 :     vstats_filename = av_strdup (arg);
    2862           0 :     return 0;
    2863             : }
    2864             : 
    2865           0 : static int opt_vstats(void *optctx, const char *opt, const char *arg)
    2866             : {
    2867             :     char filename[40];
    2868           0 :     time_t today2 = time(NULL);
    2869           0 :     struct tm *today = localtime(&today2);
    2870             : 
    2871           0 :     if (!today) { // maybe tomorrow
    2872           0 :         av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
    2873           0 :         exit_program(1);
    2874             :     }
    2875             : 
    2876           0 :     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
    2877             :              today->tm_sec);
    2878           0 :     return opt_vstats_file(NULL, opt, filename);
    2879             : }
    2880             : 
    2881          76 : static int opt_video_frames(void *optctx, const char *opt, const char *arg)
    2882             : {
    2883          76 :     OptionsContext *o = optctx;
    2884          76 :     return parse_option(o, "frames:v", arg, options);
    2885             : }
    2886             : 
    2887          11 : static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
    2888             : {
    2889          11 :     OptionsContext *o = optctx;
    2890          11 :     return parse_option(o, "frames:a", arg, options);
    2891             : }
    2892             : 
    2893           0 : static int opt_data_frames(void *optctx, const char *opt, const char *arg)
    2894             : {
    2895           0 :     OptionsContext *o = optctx;
    2896           0 :     return parse_option(o, "frames:d", arg, options);
    2897             : }
    2898             : 
    2899           2 : static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
    2900             : {
    2901             :     int ret;
    2902           2 :     AVDictionary *cbak = codec_opts;
    2903           2 :     AVDictionary *fbak = format_opts;
    2904           2 :     codec_opts = NULL;
    2905           2 :     format_opts = NULL;
    2906             : 
    2907           2 :     ret = opt_default(NULL, opt, arg);
    2908             : 
    2909           2 :     av_dict_copy(&o->g->codec_opts , codec_opts, 0);
    2910           2 :     av_dict_copy(&o->g->format_opts, format_opts, 0);
    2911           2 :     av_dict_free(&codec_opts);
    2912           2 :     av_dict_free(&format_opts);
    2913           2 :     codec_opts = cbak;
    2914           2 :     format_opts = fbak;
    2915             : 
    2916           2 :     return ret;
    2917             : }
    2918             : 
    2919           0 : static int opt_preset(void *optctx, const char *opt, const char *arg)
    2920             : {
    2921           0 :     OptionsContext *o = optctx;
    2922           0 :     FILE *f=NULL;
    2923             :     char filename[1000], line[1000], tmp_line[1000];
    2924           0 :     const char *codec_name = NULL;
    2925             : 
    2926           0 :     tmp_line[0] = *opt;
    2927           0 :     tmp_line[1] = 0;
    2928           0 :     MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
    2929             : 
    2930           0 :     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
    2931           0 :         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
    2932           0 :             av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
    2933             :         }else
    2934           0 :             av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
    2935           0 :         exit_program(1);
    2936             :     }
    2937             : 
    2938           0 :     while (fgets(line, sizeof(line), f)) {
    2939           0 :         char *key = tmp_line, *value, *endptr;
    2940             : 
    2941           0 :         if (strcspn(line, "#\n\r") == 0)
    2942           0 :             continue;
    2943           0 :         av_strlcpy(tmp_line, line, sizeof(tmp_line));
    2944           0 :         if (!av_strtok(key,   "=",    &value) ||
    2945           0 :             !av_strtok(value, "\r\n", &endptr)) {
    2946           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
    2947           0 :             exit_program(1);
    2948             :         }
    2949           0 :         av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
    2950             : 
    2951           0 :         if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
    2952           0 :         else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
    2953           0 :         else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
    2954           0 :         else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
    2955           0 :         else if (opt_default_new(o, key, value) < 0) {
    2956           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
    2957             :                    filename, line, key, value);
    2958           0 :             exit_program(1);
    2959             :         }
    2960             :     }
    2961             : 
    2962           0 :     fclose(f);
    2963             : 
    2964           0 :     return 0;
    2965             : }
    2966             : 
    2967           3 : static int opt_old2new(void *optctx, const char *opt, const char *arg)
    2968             : {
    2969           3 :     OptionsContext *o = optctx;
    2970           3 :     char *s = av_asprintf("%s:%c", opt + 1, *opt);
    2971           3 :     int ret = parse_option(o, s, arg, options);
    2972           3 :     av_free(s);
    2973           3 :     return ret;
    2974             : }
    2975             : 
    2976         160 : static int opt_bitrate(void *optctx, const char *opt, const char *arg)
    2977             : {
    2978         160 :     OptionsContext *o = optctx;
    2979             : 
    2980         160 :     if(!strcmp(opt, "ab")){
    2981          11 :         av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
    2982          11 :         return 0;
    2983         149 :     } else if(!strcmp(opt, "b")){
    2984          37 :         av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
    2985          37 :         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
    2986          37 :         return 0;
    2987             :     }
    2988         112 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    2989         112 :     return 0;
    2990             : }
    2991             : 
    2992         236 : static int opt_qscale(void *optctx, const char *opt, const char *arg)
    2993             : {
    2994         236 :     OptionsContext *o = optctx;
    2995             :     char *s;
    2996             :     int ret;
    2997         236 :     if(!strcmp(opt, "qscale")){
    2998         199 :         av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
    2999         199 :         return parse_option(o, "q:v", arg, options);
    3000             :     }
    3001          37 :     s = av_asprintf("q%s", opt + 6);
    3002          37 :     ret = parse_option(o, s, arg, options);
    3003          37 :     av_free(s);
    3004          37 :     return ret;
    3005             : }
    3006             : 
    3007          46 : static int opt_profile(void *optctx, const char *opt, const char *arg)
    3008             : {
    3009          46 :     OptionsContext *o = optctx;
    3010          46 :     if(!strcmp(opt, "profile")){
    3011           4 :         av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
    3012           4 :         av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
    3013           4 :         return 0;
    3014             :     }
    3015          42 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    3016          42 :     return 0;
    3017             : }
    3018             : 
    3019        1776 : static int opt_video_filters(void *optctx, const char *opt, const char *arg)
    3020             : {
    3021        1776 :     OptionsContext *o = optctx;
    3022        1776 :     return parse_option(o, "filter:v", arg, options);
    3023             : }
    3024             : 
    3025         321 : static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
    3026             : {
    3027         321 :     OptionsContext *o = optctx;
    3028         321 :     return parse_option(o, "filter:a", arg, options);
    3029             : }
    3030             : 
    3031         783 : static int opt_vsync(void *optctx, const char *opt, const char *arg)
    3032             : {
    3033         783 :     if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
    3034         779 :     else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
    3035         778 :     else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
    3036         777 :     else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
    3037             : 
    3038         783 :     if (video_sync_method == VSYNC_AUTO)
    3039         438 :         video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
    3040         783 :     return 0;
    3041             : }
    3042             : 
    3043          14 : static int opt_timecode(void *optctx, const char *opt, const char *arg)
    3044             : {
    3045          14 :     OptionsContext *o = optctx;
    3046          14 :     char *tcr = av_asprintf("timecode=%s", arg);
    3047          14 :     int ret = parse_option(o, "metadata:g", tcr, options);
    3048          14 :     if (ret >= 0)
    3049          14 :         ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
    3050          14 :     av_free(tcr);
    3051          14 :     return 0;
    3052             : }
    3053             : 
    3054           2 : static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
    3055             : {
    3056           2 :     OptionsContext *o = optctx;
    3057             :     char layout_str[32];
    3058             :     char *stream_str;
    3059             :     char *ac_str;
    3060             :     int ret, channels, ac_str_size;
    3061             :     uint64_t layout;
    3062             : 
    3063           2 :     layout = av_get_channel_layout(arg);
    3064           2 :     if (!layout) {
    3065           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
    3066           0 :         return AVERROR(EINVAL);
    3067             :     }
    3068           2 :     snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
    3069           2 :     ret = opt_default_new(o, opt, layout_str);
    3070           2 :     if (ret < 0)
    3071           0 :         return ret;
    3072             : 
    3073             :     /* set 'ac' option based on channel layout */
    3074           2 :     channels = av_get_channel_layout_nb_channels(layout);
    3075           2 :     snprintf(layout_str, sizeof(layout_str), "%d", channels);
    3076           2 :     stream_str = strchr(opt, ':');
    3077           2 :     ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
    3078           2 :     ac_str = av_mallocz(ac_str_size);
    3079           2 :     if (!ac_str)
    3080           0 :         return AVERROR(ENOMEM);
    3081           2 :     av_strlcpy(ac_str, "ac", 3);
    3082           2 :     if (stream_str)
    3083           0 :         av_strlcat(ac_str, stream_str, ac_str_size);
    3084           2 :     ret = parse_option(o, ac_str, layout_str, options);
    3085           2 :     av_free(ac_str);
    3086             : 
    3087           2 :     return ret;
    3088             : }
    3089             : 
    3090           0 : static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
    3091             : {
    3092           0 :     OptionsContext *o = optctx;
    3093           0 :     return parse_option(o, "q:a", arg, options);
    3094             : }
    3095             : 
    3096          22 : static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
    3097             : {
    3098          22 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3099          22 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3100           0 :         return AVERROR(ENOMEM);
    3101          22 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3102          22 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
    3103          22 :     if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
    3104           0 :         return AVERROR(ENOMEM);
    3105             : 
    3106          22 :     input_stream_potentially_available = 1;
    3107             : 
    3108          22 :     return 0;
    3109             : }
    3110             : 
    3111          20 : static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
    3112             : {
    3113          20 :     uint8_t *graph_desc = read_file(arg);
    3114          20 :     if (!graph_desc)
    3115           0 :         return AVERROR(EINVAL);
    3116             : 
    3117          20 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3118          20 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3119           0 :         return AVERROR(ENOMEM);
    3120          20 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3121          20 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
    3122             : 
    3123          20 :     input_stream_potentially_available = 1;
    3124             : 
    3125          20 :     return 0;
    3126             : }
    3127             : 
    3128           0 : void show_help_default(const char *opt, const char *arg)
    3129             : {
    3130             :     /* per-file options have at least one of those set */
    3131           0 :     const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
    3132           0 :     int show_advanced = 0, show_avoptions = 0;
    3133             : 
    3134           0 :     if (opt && *opt) {
    3135           0 :         if (!strcmp(opt, "long"))
    3136           0 :             show_advanced = 1;
    3137           0 :         else if (!strcmp(opt, "full"))
    3138           0 :             show_advanced = show_avoptions = 1;
    3139             :         else
    3140           0 :             av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
    3141             :     }
    3142             : 
    3143           0 :     show_usage();
    3144             : 
    3145           0 :     printf("Getting help:\n"
    3146             :            "    -h      -- print basic options\n"
    3147             :            "    -h long -- print more options\n"
    3148             :            "    -h full -- print all options (including all format and codec specific options, very long)\n"
    3149             :            "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
    3150             :            "    See man %s for detailed description of the options.\n"
    3151             :            "\n", program_name);
    3152             : 
    3153           0 :     show_help_options(options, "Print help / information / capabilities:",
    3154             :                       OPT_EXIT, 0, 0);
    3155             : 
    3156           0 :     show_help_options(options, "Global options (affect whole program "
    3157             :                       "instead of just one file:",
    3158             :                       0, per_file | OPT_EXIT | OPT_EXPERT, 0);
    3159           0 :     if (show_advanced)
    3160           0 :         show_help_options(options, "Advanced global options:", OPT_EXPERT,
    3161             :                           per_file | OPT_EXIT, 0);
    3162             : 
    3163           0 :     show_help_options(options, "Per-file main options:", 0,
    3164             :                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
    3165             :                       OPT_EXIT, per_file);
    3166           0 :     if (show_advanced)
    3167           0 :         show_help_options(options, "Advanced per-file options:",
    3168             :                           OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
    3169             : 
    3170           0 :     show_help_options(options, "Video options:",
    3171             :                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
    3172           0 :     if (show_advanced)
    3173           0 :         show_help_options(options, "Advanced Video options:",
    3174             :                           OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
    3175             : 
    3176           0 :     show_help_options(options, "Audio options:",
    3177             :                       OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
    3178           0 :     if (show_advanced)
    3179           0 :         show_help_options(options, "Advanced Audio options:",
    3180             :                           OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
    3181           0 :     show_help_options(options, "Subtitle options:",
    3182             :                       OPT_SUBTITLE, 0, 0);
    3183           0 :     printf("\n");
    3184             : 
    3185           0 :     if (show_avoptions) {
    3186           0 :         int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
    3187           0 :         show_help_children(avcodec_get_class(), flags);
    3188           0 :         show_help_children(avformat_get_class(), flags);
    3189             : #if CONFIG_SWSCALE
    3190           0 :         show_help_children(sws_get_class(), flags);
    3191             : #endif
    3192           0 :         show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
    3193           0 :         show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
    3194             :     }
    3195           0 : }
    3196             : 
    3197           0 : void show_usage(void)
    3198             : {
    3199           0 :     av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
    3200           0 :     av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
    3201           0 :     av_log(NULL, AV_LOG_INFO, "\n");
    3202           0 : }
    3203             : 
    3204             : enum OptGroup {
    3205             :     GROUP_OUTFILE,
    3206             :     GROUP_INFILE,
    3207             : };
    3208             : 
    3209             : static const OptionGroupDef groups[] = {
    3210             :     [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
    3211             :     [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
    3212             : };
    3213             : 
    3214       10140 : static int open_files(OptionGroupList *l, const char *inout,
    3215             :                       int (*open_file)(OptionsContext*, const char*))
    3216             : {
    3217             :     int i, ret;
    3218             : 
    3219       40682 :     for (i = 0; i < l->nb_groups; i++) {
    3220       10201 :         OptionGroup *g = &l->groups[i];
    3221             :         OptionsContext o;
    3222             : 
    3223       10201 :         init_options(&o);
    3224       10201 :         o.g = g;
    3225             : 
    3226       10201 :         ret = parse_optgroup(&o, g);
    3227       10201 :         if (ret < 0) {
    3228           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
    3229             :                    "%s.\n", inout, g->arg);
    3230           0 :             return ret;
    3231             :         }
    3232             : 
    3233       10201 :         av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
    3234       10201 :         ret = open_file(&o, g->arg);
    3235       10201 :         uninit_options(&o);
    3236       10201 :         if (ret < 0) {
    3237           0 :             av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
    3238             :                    inout, g->arg);
    3239           0 :             return ret;
    3240             :         }
    3241       10201 :         av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
    3242             :     }
    3243             : 
    3244       10140 :     return 0;
    3245             : }
    3246             : 
    3247        5071 : int ffmpeg_parse_options(int argc, char **argv)
    3248             : {
    3249             :     OptionParseContext octx;
    3250             :     uint8_t error[128];
    3251             :     int ret;
    3252             : 
    3253        5071 :     memset(&octx, 0, sizeof(octx));
    3254             : 
    3255             :     /* split the commandline into an internal representation */
    3256        5071 :     ret = split_commandline(&octx, argc, argv, options, groups,
    3257             :                             FF_ARRAY_ELEMS(groups));
    3258        5071 :     if (ret < 0) {
    3259           0 :         av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
    3260           0 :         goto fail;
    3261             :     }
    3262             : 
    3263             :     /* apply global options */
    3264        5071 :     ret = parse_optgroup(NULL, &octx.global_opts);
    3265        5070 :     if (ret < 0) {
    3266           0 :         av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
    3267           0 :         goto fail;
    3268             :     }
    3269             : 
    3270             :     /* configure terminal and setup signal handlers */
    3271        5070 :     term_init();
    3272             : 
    3273             :     /* open input files */
    3274        5070 :     ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
    3275        5070 :     if (ret < 0) {
    3276           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
    3277           0 :         goto fail;
    3278             :     }
    3279             : 
    3280             :     /* create the complex filtergraphs */
    3281        5070 :     ret = init_complex_filters();
    3282        5070 :     if (ret < 0) {
    3283           0 :         av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
    3284           0 :         goto fail;
    3285             :     }
    3286             : 
    3287             :     /* open output files */
    3288        5070 :     ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
    3289        5070 :     if (ret < 0) {
    3290           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
    3291           0 :         goto fail;
    3292             :     }
    3293             : 
    3294             :     /* configure the complex filtergraphs */
    3295        5070 :     ret = configure_complex_filters();
    3296        5070 :     if (ret < 0) {
    3297           0 :         av_log(NULL, AV_LOG_FATAL, "Error configuring complex filters.\n");
    3298           0 :         goto fail;
    3299             :     }
    3300             : 
    3301             : fail:
    3302        5070 :     uninit_parse_context(&octx);
    3303        5070 :     if (ret < 0) {
    3304           0 :         av_strerror(ret, error, sizeof(error));
    3305           0 :         av_log(NULL, AV_LOG_FATAL, "%s\n", error);
    3306             :     }
    3307        5070 :     return ret;
    3308             : }
    3309             : 
    3310           0 : static int opt_progress(void *optctx, const char *opt, const char *arg)
    3311             : {
    3312           0 :     AVIOContext *avio = NULL;
    3313             :     int ret;
    3314             : 
    3315           0 :     if (!strcmp(arg, "-"))
    3316           0 :         arg = "pipe:";
    3317           0 :     ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
    3318           0 :     if (ret < 0) {
    3319           0 :         av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
    3320           0 :                arg, av_err2str(ret));
    3321           0 :         return ret;
    3322             :     }
    3323           0 :     progress_avio = avio;
    3324           0 :     return 0;
    3325             : }
    3326             : 
    3327             : #define OFFSET(x) offsetof(OptionsContext, x)
    3328             : const OptionDef options[] = {
    3329             :     /* main options */
    3330             : #include "cmdutils_common_opts.h"
    3331             :     { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
    3332             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
    3333             :         "force format", "fmt" },
    3334             :     { "y",              OPT_BOOL,                                    {              &file_overwrite },
    3335             :         "overwrite output files" },
    3336             :     { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
    3337             :         "never overwrite output files" },
    3338             :     { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
    3339             :         "Ignore unknown stream types" },
    3340             :     { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
    3341             :         "Copy unknown stream types" },
    3342             :     { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
    3343             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3344             :         "codec name", "codec" },
    3345             :     { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
    3346             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3347             :         "codec name", "codec" },
    3348             :     { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
    3349             :                         OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
    3350             :         "preset name", "preset" },
    3351             :     { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3352             :                         OPT_OUTPUT,                                  { .func_arg = opt_map },
    3353             :         "set input stream mapping",
    3354             :         "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
    3355             :     { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
    3356             :         "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
    3357             :     { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
    3358             :                         OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
    3359             :         "set metadata information of outfile from infile",
    3360             :         "outfile[,metadata]:infile[,metadata]" },
    3361             :     { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
    3362             :                         OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
    3363             :         "set chapters mapping", "input_file_index" },
    3364             :     { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
    3365             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
    3366             :         "record or transcode \"duration\" seconds of audio/video",
    3367             :         "duration" },
    3368             :     { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
    3369             :         "record or transcode stop time", "time_stop" },
    3370             :     { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
    3371             :         "set the limit file size in bytes", "limit_size" },
    3372             :     { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
    3373             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
    3374             :         "set the start time offset", "time_off" },
    3375             :     { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
    3376             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time_eof) },
    3377             :         "set the start time offset relative to EOF", "time_off" },
    3378             :     { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
    3379             :                         OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
    3380             :         "enable/disable seeking by timestamp with -ss" },
    3381             :     { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
    3382             :                         OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
    3383             :         "enable/disable accurate seeking with -ss" },
    3384             :     { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
    3385             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
    3386             :         "set the input ts offset", "time_off" },
    3387             :     { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
    3388             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
    3389             :         "set the input ts scale", "scale" },
    3390             :     { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
    3391             :         "set the recording timestamp ('now' to set the current time)", "time" },
    3392             :     { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
    3393             :         "add metadata", "string=string" },
    3394             :     { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
    3395             :         "add program with specified streams", "title=string:st=number..." },
    3396             :     { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3397             :                         OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
    3398             :         "set the number of data frames to output", "number" },
    3399             :     { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
    3400             :         "add timings for benchmarking" },
    3401             :     { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
    3402             :       "add timings for each task" },
    3403             :     { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
    3404             :       "write program-readable progress information", "url" },
    3405             :     { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
    3406             :       "enable or disable interaction on standard input" },
    3407             :     { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
    3408             :         "set max runtime in seconds", "limit" },
    3409             :     { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
    3410             :         "dump each input packet" },
    3411             :     { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
    3412             :         "when dumping packets, also dump the payload" },
    3413             :     { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3414             :                         OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
    3415             :         "read input at native frame rate", "" },
    3416             :     { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
    3417             :         "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
    3418             :         "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
    3419             :     { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
    3420             :         "video sync method", "" },
    3421             :     { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
    3422             :         "frame drop threshold", "" },
    3423             :     { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
    3424             :         "audio sync method", "" },
    3425             :     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
    3426             :         "audio drift threshold", "threshold" },
    3427             :     { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
    3428             :         "copy timestamps" },
    3429             :     { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
    3430             :         "shift input timestamps to start at 0 when using copyts" },
    3431             :     { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
    3432             :         "copy input stream time base when stream copying", "mode" },
    3433             :     { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3434             :                         OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
    3435             :         "finish encoding within shortest input" },
    3436             :     { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
    3437             :                         OPT_OUTPUT,                                  { .off = OFFSET(apad) },
    3438             :         "audio pad", "" },
    3439             :     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
    3440             :         "timestamp discontinuity delta threshold", "threshold" },
    3441             :     { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
    3442             :         "timestamp error delta threshold", "threshold" },
    3443             :     { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
    3444             :         "exit on error", "error" },
    3445             :     { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
    3446             :         "abort on the specified condition flags", "flags" },
    3447             :     { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
    3448             :                         OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
    3449             :         "copy initial non-keyframes" },
    3450             :     { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
    3451             :         "copy or discard frames before start time" },
    3452             :     { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
    3453             :         "set the number of frames to output", "number" },
    3454             :     { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
    3455             :                         OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
    3456             :         "force codec tag/fourcc", "fourcc/tag" },
    3457             :     { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
    3458             :                         OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
    3459             :         "use fixed quality scale (VBR)", "q" },
    3460             :     { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3461             :                         OPT_OUTPUT,                                  { .func_arg = opt_qscale },
    3462             :         "use fixed quality scale (VBR)", "q" },
    3463             :     { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
    3464             :         "set profile", "profile" },
    3465             :     { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
    3466             :         "set stream filtergraph", "filter_graph" },
    3467             :     { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
    3468             :         "number of non-complex filter threads" },
    3469             :     { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
    3470             :         "read stream filtergraph description from a file", "filename" },
    3471             :     { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
    3472             :         "reinit filtergraph on input parameter changes", "" },
    3473             :     { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3474             :         "create a complex filtergraph", "graph_description" },
    3475             :     { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
    3476             :         "number of threads for -filter_complex" },
    3477             :     { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3478             :         "create a complex filtergraph", "graph_description" },
    3479             :     { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
    3480             :         "read complex filtergraph description from a file", "filename" },
    3481             :     { "stats",          OPT_BOOL,                                    { &print_stats },
    3482             :         "print progress report during encoding", },
    3483             :     { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3484             :                         OPT_OUTPUT,                                  { .func_arg = opt_attach },
    3485             :         "add an attachment to the output file", "filename" },
    3486             :     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
    3487             :                          OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
    3488             :         "extract an attachment into a file", "filename" },
    3489             :     { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
    3490             :                         OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
    3491             :     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
    3492             :         "print timestamp debugging info" },
    3493             :     { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
    3494             :         "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
    3495             :     { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
    3496             :                         OPT_INPUT,                                   { .off = OFFSET(discard) },
    3497             :         "discard", "" },
    3498             :     { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
    3499             :                         OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
    3500             :         "disposition", "" },
    3501             :     { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
    3502             :                                                                      { .off = OFFSET(thread_queue_size) },
    3503             :         "set the maximum number of queued packets from the demuxer" },
    3504             : 
    3505             :     /* video options */
    3506             :     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
    3507             :         "set the number of video frames to output", "number" },
    3508             :     { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3509             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
    3510             :         "set frame rate (Hz value, fraction or abbreviation)", "rate" },
    3511             :     { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
    3512             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
    3513             :         "set frame size (WxH or abbreviation)", "size" },
    3514             :     { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3515             :                       OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
    3516             :         "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
    3517             :     { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3518             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
    3519             :         "set pixel format", "format" },
    3520             :     { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
    3521             :         "set the number of bits per raw sample", "number" },
    3522             :     { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
    3523             :         "deprecated use -g 1" },
    3524             :     { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
    3525             :         "disable video" },
    3526             :     { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3527             :                       OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
    3528             :         "rate control override for specific intervals", "override" },
    3529             :     { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
    3530             :                       OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
    3531             :         "force video codec ('copy' to copy stream)", "codec" },
    3532             :     { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3533             :         "Removed" },
    3534             :     { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3535             :         "Removed" },
    3536             :     { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
    3537             :         "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
    3538             :     { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
    3539             :         "select the pass number (1 to 3)", "n" },
    3540             :     { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
    3541             :                       OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
    3542             :         "select two pass log file name prefix", "prefix" },
    3543             :     { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
    3544             :         "this option is deprecated, use the yadif filter instead" },
    3545             :     { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
    3546             :         "calculate PSNR of compressed frames" },
    3547             :     { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
    3548             :         "dump video coding statistics to file" },
    3549             :     { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
    3550             :         "dump video coding statistics to file", "file" },
    3551             :     { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
    3552             :         "Version of the vstats format to use."},
    3553             :     { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
    3554             :         "set video filters", "filter_graph" },
    3555             :     { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3556             :                       OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
    3557             :         "specify intra matrix coeffs", "matrix" },
    3558             :     { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3559             :                       OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
    3560             :         "specify inter matrix coeffs", "matrix" },
    3561             :     { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3562             :                       OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
    3563             :         "specify intra matrix coeffs", "matrix" },
    3564             :     { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
    3565             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
    3566             :         "top=1/bottom=0/auto=-1 field first", "" },
    3567             :     { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
    3568             :                       OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
    3569             :         "force video tag/fourcc", "fourcc/tag" },
    3570             :     { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
    3571             :         "show QP histogram" },
    3572             :     { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
    3573             :                       OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
    3574             :         "force the selected framerate, disable the best supported framerate selection" },
    3575             :     { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3576             :                       OPT_OUTPUT,                                                { .func_arg = opt_streamid },
    3577             :         "set the value of an outfile streamid", "streamIndex:value" },
    3578             :     { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3579             :                           OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
    3580             :         "force key frames at specified timestamps", "timestamps" },
    3581             :     { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3582             :         "audio bitrate (please use -b:a)", "bitrate" },
    3583             :     { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3584             :         "video bitrate (please use -b:v)", "bitrate" },
    3585             :     { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3586             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
    3587             :         "use HW accelerated decoding", "hwaccel name" },
    3588             :     { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3589             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
    3590             :         "select a device for HW acceleration", "devicename" },
    3591             :     { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3592             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
    3593             :         "select output format used with HW accelerated decoding", "format" },
    3594             : #if CONFIG_VDA || CONFIG_VIDEOTOOLBOX
    3595             :     { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
    3596             : #endif
    3597             :     { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
    3598             :         "show available HW acceleration methods" },
    3599             :     { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
    3600             :                           OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
    3601             :         "automatically insert correct rotate filters" },
    3602             :     { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,                        { &hwaccel_lax_profile_check},
    3603             :         "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
    3604             : 
    3605             :     /* audio options */
    3606             :     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
    3607             :         "set the number of audio frames to output", "number" },
    3608             :     { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
    3609             :         "set audio quality (codec-specific)", "quality", },
    3610             :     { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3611             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
    3612             :         "set audio sampling rate (in Hz)", "rate" },
    3613             :     { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3614             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
    3615             :         "set number of audio channels", "channels" },
    3616             :     { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
    3617             :         "disable audio" },
    3618             :     { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
    3619             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
    3620             :         "force audio codec ('copy' to copy stream)", "codec" },
    3621             :     { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3622             :                         OPT_OUTPUT,                                                { .func_arg = opt_old2new },
    3623             :         "force audio tag/fourcc", "fourcc/tag" },
    3624             :     { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
    3625             :         "change audio volume (256=normal)" , "volume" },
    3626             :     { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
    3627             :                         OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
    3628             :         "set sample format", "format" },
    3629             :     { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3630             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
    3631             :         "set channel layout", "layout" },
    3632             :     { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
    3633             :         "set audio filters", "filter_graph" },
    3634             :     { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
    3635             :       "set the maximum number of channels to try to guess the channel layout" },
    3636             : 
    3637             :     /* subtitle options */
    3638             :     { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
    3639             :         "disable subtitle" },
    3640             :     { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
    3641             :         "force subtitle codec ('copy' to copy stream)", "codec" },
    3642             :     { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
    3643             :         , "force subtitle tag/fourcc", "fourcc/tag" },
    3644             :     { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
    3645             :         "fix subtitles duration" },
    3646             :     { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
    3647             :         "set canvas size (WxH or abbreviation)", "size" },
    3648             : 
    3649             :     /* grab options */
    3650             :     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
    3651             :         "deprecated, use -channel", "channel" },
    3652             :     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
    3653             :         "deprecated, use -standard", "standard" },
    3654             :     { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
    3655             : 
    3656             :     /* muxer options */
    3657             :     { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
    3658             :         "set the maximum demux-decode delay", "seconds" },
    3659             :     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
    3660             :         "set the initial demux-decode delay", "seconds" },
    3661             :     { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
    3662             :         "override the options from ffserver", "" },
    3663             :     { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
    3664             :         "specify a file in which to print sdp information", "file" },
    3665             : 
    3666             :     { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
    3667             :         "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
    3668             : 
    3669             :     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
    3670             :         "A comma-separated list of bitstream filters", "bitstream_filters" },
    3671             :     { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3672             :         "deprecated", "audio bitstream_filters" },
    3673             :     { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3674             :         "deprecated", "video bitstream_filters" },
    3675             : 
    3676             :     { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3677             :         "set the audio options to the indicated preset", "preset" },
    3678             :     { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3679             :         "set the video options to the indicated preset", "preset" },
    3680             :     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
    3681             :         "set the subtitle options to the indicated preset", "preset" },
    3682             :     { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
    3683             :         "set options from indicated preset file", "filename" },
    3684             : 
    3685             :     { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
    3686             :         "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
    3687             : 
    3688             :     /* data codec support */
    3689             :     { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
    3690             :         "force data codec ('copy' to copy stream)", "codec" },
    3691             :     { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
    3692             :         "disable data" },
    3693             : 
    3694             : #if CONFIG_VAAPI
    3695             :     { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
    3696             :         "set VAAPI hardware device (DRM path or X11 display name)", "device" },
    3697             : #endif
    3698             : 
    3699             : #if CONFIG_QSV
    3700             :     { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
    3701             :         "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
    3702             : #endif
    3703             : 
    3704             :     { NULL, },
    3705             : };

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