LCOV - code coverage report
Current view: top level - src - ffmpeg_opt.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 1097 1950 56.3 %
Date: 2017-07-20 10:18:08 Functions: 44 72 61.1 %

          Line data    Source code
       1             : /*
       2             :  * ffmpeg option parsing
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : #include <stdint.h>
      22             : 
      23             : #include "ffmpeg.h"
      24             : #include "cmdutils.h"
      25             : 
      26             : #include "libavformat/avformat.h"
      27             : 
      28             : #include "libavcodec/avcodec.h"
      29             : 
      30             : #include "libavfilter/avfilter.h"
      31             : 
      32             : #include "libavutil/avassert.h"
      33             : #include "libavutil/avstring.h"
      34             : #include "libavutil/avutil.h"
      35             : #include "libavutil/channel_layout.h"
      36             : #include "libavutil/intreadwrite.h"
      37             : #include "libavutil/fifo.h"
      38             : #include "libavutil/mathematics.h"
      39             : #include "libavutil/opt.h"
      40             : #include "libavutil/parseutils.h"
      41             : #include "libavutil/pixdesc.h"
      42             : #include "libavutil/pixfmt.h"
      43             : 
      44             : #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
      45             : 
      46             : #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
      47             : {\
      48             :     int i, ret;\
      49             :     for (i = 0; i < o->nb_ ## name; i++) {\
      50             :         char *spec = o->name[i].specifier;\
      51             :         if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
      52             :             outvar = o->name[i].u.type;\
      53             :         else if (ret < 0)\
      54             :             exit_program(1);\
      55             :     }\
      56             : }
      57             : 
      58             : #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
      59             : {\
      60             :     int i;\
      61             :     for (i = 0; i < o->nb_ ## name; i++) {\
      62             :         char *spec = o->name[i].specifier;\
      63             :         if (!strcmp(spec, mediatype))\
      64             :             outvar = o->name[i].u.type;\
      65             :     }\
      66             : }
      67             : 
      68             : const HWAccel hwaccels[] = {
      69             : #if HAVE_VDPAU_X11
      70             :     { "vdpau", hwaccel_decode_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU,
      71             :       AV_HWDEVICE_TYPE_VDPAU },
      72             : #endif
      73             : #if CONFIG_D3D11VA
      74             :     { "d3d11va", hwaccel_decode_init, HWACCEL_D3D11VA, AV_PIX_FMT_D3D11,
      75             :       AV_HWDEVICE_TYPE_D3D11VA },
      76             : #endif
      77             : #if CONFIG_DXVA2
      78             :     { "dxva2", hwaccel_decode_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD,
      79             :       AV_HWDEVICE_TYPE_DXVA2 },
      80             : #endif
      81             : #if CONFIG_VDA
      82             :     { "vda",   videotoolbox_init,   HWACCEL_VDA,   AV_PIX_FMT_VDA,
      83             :       AV_HWDEVICE_TYPE_NONE },
      84             : #endif
      85             : #if CONFIG_VIDEOTOOLBOX
      86             :     { "videotoolbox",   videotoolbox_init,   HWACCEL_VIDEOTOOLBOX,   AV_PIX_FMT_VIDEOTOOLBOX,
      87             :       AV_HWDEVICE_TYPE_NONE },
      88             : #endif
      89             : #if CONFIG_LIBMFX
      90             :     { "qsv",   qsv_init,   HWACCEL_QSV,   AV_PIX_FMT_QSV,
      91             :       AV_HWDEVICE_TYPE_NONE },
      92             : #endif
      93             : #if CONFIG_VAAPI
      94             :     { "vaapi", hwaccel_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI,
      95             :       AV_HWDEVICE_TYPE_VAAPI },
      96             : #endif
      97             : #if CONFIG_CUVID
      98             :     { "cuvid", cuvid_init, HWACCEL_CUVID, AV_PIX_FMT_CUDA,
      99             :       AV_HWDEVICE_TYPE_NONE },
     100             : #endif
     101             :     { 0 },
     102             : };
     103             : int hwaccel_lax_profile_check = 0;
     104             : AVBufferRef *hw_device_ctx;
     105             : HWDevice *filter_hw_device;
     106             : 
     107             : char *vstats_filename;
     108             : char *sdp_filename;
     109             : 
     110             : float audio_drift_threshold = 0.1;
     111             : float dts_delta_threshold   = 10;
     112             : float dts_error_threshold   = 3600*30;
     113             : 
     114             : int audio_volume      = 256;
     115             : int audio_sync_method = 0;
     116             : int video_sync_method = VSYNC_AUTO;
     117             : float frame_drop_threshold = 0;
     118             : int do_deinterlace    = 0;
     119             : int do_benchmark      = 0;
     120             : int do_benchmark_all  = 0;
     121             : int do_hex_dump       = 0;
     122             : int do_pkt_dump       = 0;
     123             : int copy_ts           = 0;
     124             : int start_at_zero     = 0;
     125             : int copy_tb           = -1;
     126             : int debug_ts          = 0;
     127             : int exit_on_error     = 0;
     128             : int abort_on_flags    = 0;
     129             : int print_stats       = -1;
     130             : int qp_hist           = 0;
     131             : int stdin_interaction = 1;
     132             : int frame_bits_per_raw_sample = 0;
     133             : float max_error_rate  = 2.0/3;
     134             : int filter_nbthreads = 0;
     135             : int filter_complex_nbthreads = 0;
     136             : int vstats_version = 2;
     137             : 
     138             : 
     139             : static int intra_only         = 0;
     140             : static int file_overwrite     = 0;
     141             : static int no_file_overwrite  = 0;
     142             : static int do_psnr            = 0;
     143             : static int input_sync;
     144             : static int override_ffserver  = 0;
     145             : static int input_stream_potentially_available = 0;
     146             : static int ignore_unknown_streams = 0;
     147             : static int copy_unknown_streams = 0;
     148             : static int find_stream_info = 1;
     149             : 
     150       10409 : static void uninit_options(OptionsContext *o)
     151             : {
     152       10409 :     const OptionDef *po = options;
     153             :     int i;
     154             : 
     155             :     /* all OPT_SPEC and OPT_STRING can be freed in generic way */
     156     1863211 :     while (po->name) {
     157     1842393 :         void *dst = (uint8_t*)o + po->u.off;
     158             : 
     159     1842393 :         if (po->flags & OPT_SPEC) {
     160      478814 :             SpecifierOpt **so = dst;
     161      478814 :             int i, *count = (int*)(so + 1);
     162      498876 :             for (i = 0; i < *count; i++) {
     163       20062 :                 av_freep(&(*so)[i].specifier);
     164       20062 :                 if (po->flags & OPT_STRING)
     165       16301 :                     av_freep(&(*so)[i].u.str);
     166             :             }
     167      478814 :             av_freep(so);
     168      478814 :             *count = 0;
     169     1363579 :         } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
     170       10409 :             av_freep(dst);
     171     1842393 :         po++;
     172             :     }
     173             : 
     174       10463 :     for (i = 0; i < o->nb_stream_maps; i++)
     175          54 :         av_freep(&o->stream_maps[i].linklabel);
     176       10409 :     av_freep(&o->stream_maps);
     177       10409 :     av_freep(&o->audio_channel_maps);
     178       10409 :     av_freep(&o->streamid_map);
     179       10409 :     av_freep(&o->attachments);
     180       10409 : }
     181             : 
     182       10409 : static void init_options(OptionsContext *o)
     183             : {
     184       10409 :     memset(o, 0, sizeof(*o));
     185             : 
     186       10409 :     o->stop_time = INT64_MAX;
     187       10409 :     o->mux_max_delay  = 0.7;
     188       10409 :     o->start_time     = AV_NOPTS_VALUE;
     189       10409 :     o->start_time_eof = AV_NOPTS_VALUE;
     190       10409 :     o->recording_time = INT64_MAX;
     191       10409 :     o->limit_filesize = UINT64_MAX;
     192       10409 :     o->chapters_input_file = INT_MAX;
     193       10409 :     o->accurate_seek  = 1;
     194       10409 : }
     195             : 
     196           0 : static int show_hwaccels(void *optctx, const char *opt, const char *arg)
     197             : {
     198             :     int i;
     199             : 
     200           0 :     printf("Hardware acceleration methods:\n");
     201           0 :     for (i = 0; hwaccels[i].name; i++) {
     202           0 :         printf("%s\n", hwaccels[i].name);
     203             :     }
     204           0 :     printf("\n");
     205           0 :     return 0;
     206             : }
     207             : 
     208             : /* return a copy of the input with the stream specifiers removed from the keys */
     209       10409 : static AVDictionary *strip_specifiers(AVDictionary *dict)
     210             : {
     211       10409 :     AVDictionaryEntry *e = NULL;
     212       10409 :     AVDictionary    *ret = NULL;
     213             : 
     214       50826 :     while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
     215       30008 :         char *p = strchr(e->key, ':');
     216             : 
     217       30008 :         if (p)
     218         194 :             *p = 0;
     219       30008 :         av_dict_set(&ret, e->key, e->value, 0);
     220       30008 :         if (p)
     221         194 :             *p = ':';
     222             :     }
     223       10409 :     return ret;
     224             : }
     225             : 
     226           0 : static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     227             : {
     228             :     static const AVOption opts[] = {
     229             :         { "abort_on"        , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
     230             :         { "empty_output"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT     },    .unit = "flags" },
     231             :         { NULL },
     232             :     };
     233             :     static const AVClass class = {
     234             :         .class_name = "",
     235             :         .item_name  = av_default_item_name,
     236             :         .option     = opts,
     237             :         .version    = LIBAVUTIL_VERSION_INT,
     238             :     };
     239           0 :     const AVClass *pclass = &class;
     240             : 
     241           0 :     return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
     242             : }
     243             : 
     244           0 : static int opt_sameq(void *optctx, const char *opt, const char *arg)
     245             : {
     246           0 :     av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
     247             :            "If you are looking for an option to preserve the quality (which is not "
     248             :            "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
     249             :            opt, opt);
     250           0 :     return AVERROR(EINVAL);
     251             : }
     252             : 
     253           0 : static int opt_video_channel(void *optctx, const char *opt, const char *arg)
     254             : {
     255           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
     256           0 :     return opt_default(optctx, "channel", arg);
     257             : }
     258             : 
     259           0 : static int opt_video_standard(void *optctx, const char *opt, const char *arg)
     260             : {
     261           0 :     av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
     262           0 :     return opt_default(optctx, "standard", arg);
     263             : }
     264             : 
     265         374 : static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
     266             : {
     267         374 :     OptionsContext *o = optctx;
     268         374 :     return parse_option(o, "codec:a", arg, options);
     269             : }
     270             : 
     271        3550 : static int opt_video_codec(void *optctx, const char *opt, const char *arg)
     272             : {
     273        3550 :     OptionsContext *o = optctx;
     274        3550 :     return parse_option(o, "codec:v", arg, options);
     275             : }
     276             : 
     277           2 : static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
     278             : {
     279           2 :     OptionsContext *o = optctx;
     280           2 :     return parse_option(o, "codec:s", arg, options);
     281             : }
     282             : 
     283           0 : static int opt_data_codec(void *optctx, const char *opt, const char *arg)
     284             : {
     285           0 :     OptionsContext *o = optctx;
     286           0 :     return parse_option(o, "codec:d", arg, options);
     287             : }
     288             : 
     289          47 : static int opt_map(void *optctx, const char *opt, const char *arg)
     290             : {
     291          47 :     OptionsContext *o = optctx;
     292          47 :     StreamMap *m = NULL;
     293          47 :     int i, negative = 0, file_idx;
     294          47 :     int sync_file_idx = -1, sync_stream_idx = 0;
     295             :     char *p, *sync;
     296             :     char *map;
     297             :     char *allow_unused;
     298             : 
     299          47 :     if (*arg == '-') {
     300           0 :         negative = 1;
     301           0 :         arg++;
     302             :     }
     303          47 :     map = av_strdup(arg);
     304          47 :     if (!map)
     305           0 :         return AVERROR(ENOMEM);
     306             : 
     307             :     /* parse sync stream first, just pick first matching stream */
     308          47 :     if (sync = strchr(map, ',')) {
     309           0 :         *sync = 0;
     310           0 :         sync_file_idx = strtol(sync + 1, &sync, 0);
     311           0 :         if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
     312           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
     313           0 :             exit_program(1);
     314             :         }
     315           0 :         if (*sync)
     316           0 :             sync++;
     317           0 :         for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
     318           0 :             if (check_stream_specifier(input_files[sync_file_idx]->ctx,
     319           0 :                                        input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
     320           0 :                 sync_stream_idx = i;
     321           0 :                 break;
     322             :             }
     323           0 :         if (i == input_files[sync_file_idx]->nb_streams) {
     324           0 :             av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
     325             :                                        "match any streams.\n", arg);
     326           0 :             exit_program(1);
     327             :         }
     328             :     }
     329             : 
     330             : 
     331          47 :     if (map[0] == '[') {
     332             :         /* this mapping refers to lavfi output */
     333           3 :         const char *c = map + 1;
     334           3 :         GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     335           3 :         m = &o->stream_maps[o->nb_stream_maps - 1];
     336           3 :         m->linklabel = av_get_token(&c, "]");
     337           3 :         if (!m->linklabel) {
     338           0 :             av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
     339           0 :             exit_program(1);
     340             :         }
     341             :     } else {
     342          44 :         if (allow_unused = strchr(map, '?'))
     343           0 :             *allow_unused = 0;
     344          44 :         file_idx = strtol(map, &p, 0);
     345          44 :         if (file_idx >= nb_input_files || file_idx < 0) {
     346           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
     347           0 :             exit_program(1);
     348             :         }
     349          44 :         if (negative)
     350             :             /* disable some already defined maps */
     351           0 :             for (i = 0; i < o->nb_stream_maps; i++) {
     352           0 :                 m = &o->stream_maps[i];
     353           0 :                 if (file_idx == m->file_index &&
     354           0 :                     check_stream_specifier(input_files[m->file_index]->ctx,
     355           0 :                                            input_files[m->file_index]->ctx->streams[m->stream_index],
     356           0 :                                            *p == ':' ? p + 1 : p) > 0)
     357           0 :                     m->disabled = 1;
     358             :             }
     359             :         else
     360         129 :             for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
     361         134 :                 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
     362         134 :                             *p == ':' ? p + 1 : p) <= 0)
     363          34 :                     continue;
     364          51 :                 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
     365          51 :                 m = &o->stream_maps[o->nb_stream_maps - 1];
     366             : 
     367          51 :                 m->file_index   = file_idx;
     368          51 :                 m->stream_index = i;
     369             : 
     370          51 :                 if (sync_file_idx >= 0) {
     371           0 :                     m->sync_file_index   = sync_file_idx;
     372           0 :                     m->sync_stream_index = sync_stream_idx;
     373             :                 } else {
     374          51 :                     m->sync_file_index   = file_idx;
     375          51 :                     m->sync_stream_index = i;
     376             :                 }
     377             :             }
     378             :     }
     379             : 
     380          47 :     if (!m) {
     381           0 :         if (allow_unused) {
     382           0 :             av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
     383             :         } else {
     384           0 :             av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
     385             :                                        "To ignore this, add a trailing '?' to the map.\n", arg);
     386           0 :             exit_program(1);
     387             :         }
     388             :     }
     389             : 
     390          47 :     av_freep(&map);
     391          47 :     return 0;
     392             : }
     393             : 
     394           1 : static int opt_attach(void *optctx, const char *opt, const char *arg)
     395             : {
     396           1 :     OptionsContext *o = optctx;
     397           1 :     GROW_ARRAY(o->attachments, o->nb_attachments);
     398           1 :     o->attachments[o->nb_attachments - 1] = arg;
     399           1 :     return 0;
     400             : }
     401             : 
     402           6 : static int opt_map_channel(void *optctx, const char *opt, const char *arg)
     403             : {
     404           6 :     OptionsContext *o = optctx;
     405             :     int n;
     406             :     AVStream *st;
     407             :     AudioChannelMap *m;
     408             : 
     409           6 :     GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
     410           6 :     m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
     411             : 
     412             :     /* muted channel syntax */
     413           6 :     n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
     414           6 :     if ((n == 1 || n == 3) && m->channel_idx == -1) {
     415           1 :         m->file_idx = m->stream_idx = -1;
     416           1 :         if (n == 1)
     417           1 :             m->ofile_idx = m->ostream_idx = -1;
     418           1 :         return 0;
     419             :     }
     420             : 
     421             :     /* normal syntax */
     422           5 :     n = sscanf(arg, "%d.%d.%d:%d.%d",
     423             :                &m->file_idx,  &m->stream_idx, &m->channel_idx,
     424             :                &m->ofile_idx, &m->ostream_idx);
     425             : 
     426           5 :     if (n != 3 && n != 5) {
     427           0 :         av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
     428             :                "[file.stream.channel|-1][:syncfile:syncstream]\n");
     429           0 :         exit_program(1);
     430             :     }
     431             : 
     432           5 :     if (n != 5) // only file.stream.channel specified
     433           5 :         m->ofile_idx = m->ostream_idx = -1;
     434             : 
     435             :     /* check input */
     436           5 :     if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
     437           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
     438             :                m->file_idx);
     439           0 :         exit_program(1);
     440             :     }
     441          10 :     if (m->stream_idx < 0 ||
     442           5 :         m->stream_idx >= input_files[m->file_idx]->nb_streams) {
     443           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
     444             :                m->file_idx, m->stream_idx);
     445           0 :         exit_program(1);
     446             :     }
     447           5 :     st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
     448           5 :     if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
     449           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
     450             :                m->file_idx, m->stream_idx);
     451           0 :         exit_program(1);
     452             :     }
     453           5 :     if (m->channel_idx < 0 || m->channel_idx >= st->codecpar->channels) {
     454           0 :         av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
     455             :                m->file_idx, m->stream_idx, m->channel_idx);
     456           0 :         exit_program(1);
     457             :     }
     458           5 :     return 0;
     459             : }
     460             : 
     461           0 : static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
     462             : {
     463           0 :     av_free(sdp_filename);
     464           0 :     sdp_filename = av_strdup(arg);
     465           0 :     return 0;
     466             : }
     467             : 
     468             : #if CONFIG_VAAPI
     469             : static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
     470             : {
     471             :     HWDevice *dev;
     472             :     const char *prefix = "vaapi:";
     473             :     char *tmp;
     474             :     int err;
     475             :     tmp = av_asprintf("%s%s", prefix, arg);
     476             :     if (!tmp)
     477             :         return AVERROR(ENOMEM);
     478             :     err = hw_device_init_from_string(tmp, &dev);
     479             :     av_free(tmp);
     480             :     if (err < 0)
     481             :         return err;
     482             :     hw_device_ctx = av_buffer_ref(dev->device_ref);
     483             :     if (!hw_device_ctx)
     484             :         return AVERROR(ENOMEM);
     485             :     return 0;
     486             : }
     487             : #endif
     488             : 
     489           0 : static int opt_init_hw_device(void *optctx, const char *opt, const char *arg)
     490             : {
     491           0 :     if (!strcmp(arg, "list")) {
     492           0 :         enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
     493           0 :         printf("Supported hardware device types:\n");
     494           0 :         while ((type = av_hwdevice_iterate_types(type)) !=
     495             :                AV_HWDEVICE_TYPE_NONE)
     496           0 :             printf("%s\n", av_hwdevice_get_type_name(type));
     497           0 :         printf("\n");
     498           0 :         exit_program(0);
     499             :     } else {
     500           0 :         return hw_device_init_from_string(arg, NULL);
     501             :     }
     502             : }
     503             : 
     504           0 : static int opt_filter_hw_device(void *optctx, const char *opt, const char *arg)
     505             : {
     506           0 :     if (filter_hw_device) {
     507           0 :         av_log(NULL, AV_LOG_ERROR, "Only one filter device can be used.\n");
     508           0 :         return AVERROR(EINVAL);
     509             :     }
     510           0 :     filter_hw_device = hw_device_get_by_name(arg);
     511           0 :     if (!filter_hw_device) {
     512           0 :         av_log(NULL, AV_LOG_ERROR, "Invalid filter device %s.\n", arg);
     513           0 :         return AVERROR(EINVAL);
     514             :     }
     515           0 :     return 0;
     516             : }
     517             : 
     518             : /**
     519             :  * Parse a metadata specifier passed as 'arg' parameter.
     520             :  * @param arg  metadata string to parse
     521             :  * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
     522             :  * @param index for type c/p, chapter/program index is written here
     523             :  * @param stream_spec for type s, the stream specifier is written here
     524             :  */
     525         170 : static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
     526             : {
     527         170 :     if (*arg) {
     528          22 :         *type = *arg;
     529          22 :         switch (*arg) {
     530          16 :         case 'g':
     531          16 :             break;
     532           6 :         case 's':
     533           6 :             if (*(++arg) && *arg != ':') {
     534           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
     535           0 :                 exit_program(1);
     536             :             }
     537           6 :             *stream_spec = *arg == ':' ? arg + 1 : "";
     538           6 :             break;
     539           0 :         case 'c':
     540             :         case 'p':
     541           0 :             if (*(++arg) == ':')
     542           0 :                 *index = strtol(++arg, NULL, 0);
     543           0 :             break;
     544           0 :         default:
     545           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
     546           0 :             exit_program(1);
     547             :         }
     548             :     } else
     549         148 :         *type = 'g';
     550         170 : }
     551             : 
     552           5 : static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
     553             : {
     554           5 :     AVDictionary **meta_in = NULL;
     555           5 :     AVDictionary **meta_out = NULL;
     556           5 :     int i, ret = 0;
     557             :     char type_in, type_out;
     558           5 :     const char *istream_spec = NULL, *ostream_spec = NULL;
     559           5 :     int idx_in = 0, idx_out = 0;
     560             : 
     561           5 :     parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
     562           5 :     parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
     563             : 
     564           5 :     if (!ic) {
     565           2 :         if (type_out == 'g' || !*outspec)
     566           2 :             o->metadata_global_manual = 1;
     567           2 :         if (type_out == 's' || !*outspec)
     568           0 :             o->metadata_streams_manual = 1;
     569           2 :         if (type_out == 'c' || !*outspec)
     570           0 :             o->metadata_chapters_manual = 1;
     571           2 :         return 0;
     572             :     }
     573             : 
     574           3 :     if (type_in == 'g' || type_out == 'g')
     575           1 :         o->metadata_global_manual = 1;
     576           3 :     if (type_in == 's' || type_out == 's')
     577           2 :         o->metadata_streams_manual = 1;
     578           3 :     if (type_in == 'c' || type_out == 'c')
     579           0 :         o->metadata_chapters_manual = 1;
     580             : 
     581             :     /* ic is NULL when just disabling automatic mappings */
     582           3 :     if (!ic)
     583           0 :         return 0;
     584             : 
     585             : #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
     586             :     if ((index) < 0 || (index) >= (nb_elems)) {\
     587             :         av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
     588             :                 (desc), (index));\
     589             :         exit_program(1);\
     590             :     }
     591             : 
     592             : #define SET_DICT(type, meta, context, index)\
     593             :         switch (type) {\
     594             :         case 'g':\
     595             :             meta = &context->metadata;\
     596             :             break;\
     597             :         case 'c':\
     598             :             METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
     599             :             meta = &context->chapters[index]->metadata;\
     600             :             break;\
     601             :         case 'p':\
     602             :             METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
     603             :             meta = &context->programs[index]->metadata;\
     604             :             break;\
     605             :         case 's':\
     606             :             break; /* handled separately below */ \
     607             :         default: av_assert0(0);\
     608             :         }\
     609             : 
     610           3 :     SET_DICT(type_in, meta_in, ic, idx_in);
     611           3 :     SET_DICT(type_out, meta_out, oc, idx_out);
     612             : 
     613             :     /* for input streams choose first matching stream */
     614           3 :     if (type_in == 's') {
     615           3 :         for (i = 0; i < ic->nb_streams; i++) {
     616           3 :             if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
     617           2 :                 meta_in = &ic->streams[i]->metadata;
     618           2 :                 break;
     619           1 :             } else if (ret < 0)
     620           0 :                 exit_program(1);
     621             :         }
     622           2 :         if (!meta_in) {
     623           0 :             av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
     624           0 :             exit_program(1);
     625             :         }
     626             :     }
     627             : 
     628           3 :     if (type_out == 's') {
     629           8 :         for (i = 0; i < oc->nb_streams; i++) {
     630           6 :             if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
     631           2 :                 meta_out = &oc->streams[i]->metadata;
     632           2 :                 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     633           4 :             } else if (ret < 0)
     634           0 :                 exit_program(1);
     635             :         }
     636             :     } else
     637           1 :         av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
     638             : 
     639           3 :     return 0;
     640             : }
     641             : 
     642           0 : static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
     643             : {
     644           0 :     OptionsContext *o = optctx;
     645             :     char buf[128];
     646           0 :     int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
     647           0 :     struct tm time = *gmtime((time_t*)&recording_timestamp);
     648           0 :     if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
     649           0 :         return -1;
     650           0 :     parse_option(o, "metadata", buf, options);
     651             : 
     652           0 :     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
     653             :                                  "tag instead.\n", opt);
     654           0 :     return 0;
     655             : }
     656             : 
     657       10328 : static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
     658             : {
     659             :     const AVCodecDescriptor *desc;
     660       10328 :     const char *codec_string = encoder ? "encoder" : "decoder";
     661             :     AVCodec *codec;
     662             : 
     663       10328 :     codec = encoder ?
     664       10328 :         avcodec_find_encoder_by_name(name) :
     665             :         avcodec_find_decoder_by_name(name);
     666             : 
     667       10328 :     if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
     668           1 :         codec = encoder ? avcodec_find_encoder(desc->id) :
     669           0 :                           avcodec_find_decoder(desc->id);
     670           1 :         if (codec)
     671           1 :             av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
     672             :                    codec_string, codec->name, desc->name);
     673             :     }
     674             : 
     675       10328 :     if (!codec) {
     676           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
     677           0 :         exit_program(1);
     678             :     }
     679       10328 :     if (codec->type != type) {
     680           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
     681           0 :         exit_program(1);
     682             :     }
     683       10328 :     return codec;
     684             : }
     685             : 
     686       10978 : static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
     687             : {
     688       10978 :     char *codec_name = NULL;
     689             : 
     690       10978 :     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
     691       10978 :     if (codec_name) {
     692        3836 :         AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
     693        3836 :         st->codecpar->codec_id = codec->id;
     694        3836 :         return codec;
     695             :     } else
     696        7142 :         return avcodec_find_decoder(st->codecpar->codec_id);
     697             : }
     698             : 
     699             : /* Add all the streams from the given input file to the global
     700             :  * list of input streams. */
     701        5233 : static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
     702             : {
     703             :     int i, ret;
     704             : 
     705       10767 :     for (i = 0; i < ic->nb_streams; i++) {
     706        5534 :         AVStream *st = ic->streams[i];
     707        5534 :         AVCodecParameters *par = st->codecpar;
     708        5534 :         InputStream *ist = av_mallocz(sizeof(*ist));
     709        5534 :         char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
     710        5534 :         char *hwaccel_output_format = NULL;
     711        5534 :         char *codec_tag = NULL;
     712             :         char *next;
     713        5534 :         char *discard_str = NULL;
     714        5534 :         const AVClass *cc = avcodec_get_class();
     715        5534 :         const AVOption *discard_opt = av_opt_find(&cc, "skip_frame", NULL, 0, 0);
     716             : 
     717        5534 :         if (!ist)
     718           0 :             exit_program(1);
     719             : 
     720        5534 :         GROW_ARRAY(input_streams, nb_input_streams);
     721        5534 :         input_streams[nb_input_streams - 1] = ist;
     722             : 
     723        5534 :         ist->st = st;
     724        5534 :         ist->file_index = nb_input_files;
     725        5534 :         ist->discard = 1;
     726        5534 :         st->discard  = AVDISCARD_ALL;
     727        5534 :         ist->nb_samples = 0;
     728        5534 :         ist->min_pts = INT64_MAX;
     729        5534 :         ist->max_pts = INT64_MIN;
     730             : 
     731        5534 :         ist->ts_scale = 1.0;
     732        5534 :         MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
     733             : 
     734        5534 :         ist->autorotate = 1;
     735        5534 :         MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
     736             : 
     737        5534 :         MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
     738        5534 :         if (codec_tag) {
     739           0 :             uint32_t tag = strtol(codec_tag, &next, 0);
     740           0 :             if (*next)
     741           0 :                 tag = AV_RL32(codec_tag);
     742           0 :             st->codecpar->codec_tag = tag;
     743             :         }
     744             : 
     745        5534 :         ist->dec = choose_decoder(o, ic, st);
     746        5534 :         ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id, ic, st, ist->dec);
     747             : 
     748        5534 :         ist->reinit_filters = -1;
     749        5534 :         MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
     750             : 
     751        5534 :         MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
     752        5534 :         ist->user_set_discard = AVDISCARD_NONE;
     753        5534 :         if (discard_str && av_opt_eval_int(&cc, discard_opt, discard_str, &ist->user_set_discard) < 0) {
     754           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
     755             :                     discard_str);
     756           0 :             exit_program(1);
     757             :         }
     758             : 
     759        5534 :         ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
     760             : 
     761        5534 :         ist->dec_ctx = avcodec_alloc_context3(ist->dec);
     762        5534 :         if (!ist->dec_ctx) {
     763           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
     764           0 :             exit_program(1);
     765             :         }
     766             : 
     767        5534 :         ret = avcodec_parameters_to_context(ist->dec_ctx, par);
     768        5534 :         if (ret < 0) {
     769           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     770           0 :             exit_program(1);
     771             :         }
     772             : 
     773        5534 :         switch (par->codec_type) {
     774        4169 :         case AVMEDIA_TYPE_VIDEO:
     775        4169 :             if(!ist->dec)
     776           0 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     777             : #if FF_API_EMU_EDGE
     778        4169 :             if (av_codec_get_lowres(st->codec)) {
     779           1 :                 av_codec_set_lowres(ist->dec_ctx, av_codec_get_lowres(st->codec));
     780           1 :                 ist->dec_ctx->width  = st->codec->width;
     781           1 :                 ist->dec_ctx->height = st->codec->height;
     782           1 :                 ist->dec_ctx->coded_width  = st->codec->coded_width;
     783           1 :                 ist->dec_ctx->coded_height = st->codec->coded_height;
     784           1 :                 ist->dec_ctx->flags |= CODEC_FLAG_EMU_EDGE;
     785             :             }
     786             : #endif
     787             : 
     788             :             // avformat_find_stream_info() doesn't set this for us anymore.
     789        4169 :             ist->dec_ctx->framerate = st->avg_frame_rate;
     790             : 
     791        4169 :             MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
     792        4169 :             if (framerate && av_parse_video_rate(&ist->framerate,
     793             :                                                  framerate) < 0) {
     794           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
     795             :                        framerate);
     796           0 :                 exit_program(1);
     797             :             }
     798             : 
     799        4169 :             ist->top_field_first = -1;
     800        4169 :             MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
     801             : 
     802        4169 :             MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
     803        4169 :             if (hwaccel) {
     804        3954 :                 if (!strcmp(hwaccel, "none"))
     805        3954 :                     ist->hwaccel_id = HWACCEL_NONE;
     806           0 :                 else if (!strcmp(hwaccel, "auto"))
     807           0 :                     ist->hwaccel_id = HWACCEL_AUTO;
     808             :                 else {
     809             :                     int i;
     810           0 :                     for (i = 0; hwaccels[i].name; i++) {
     811           0 :                         if (!strcmp(hwaccels[i].name, hwaccel)) {
     812           0 :                             ist->hwaccel_id = hwaccels[i].id;
     813           0 :                             break;
     814             :                         }
     815             :                     }
     816             : 
     817           0 :                     if (!ist->hwaccel_id) {
     818           0 :                         av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
     819             :                                hwaccel);
     820           0 :                         av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
     821           0 :                         for (i = 0; hwaccels[i].name; i++)
     822           0 :                             av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
     823           0 :                         av_log(NULL, AV_LOG_FATAL, "\n");
     824           0 :                         exit_program(1);
     825             :                     }
     826             :                 }
     827             :             }
     828             : 
     829        4169 :             MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
     830        4169 :             if (hwaccel_device) {
     831           0 :                 ist->hwaccel_device = av_strdup(hwaccel_device);
     832           0 :                 if (!ist->hwaccel_device)
     833           0 :                     exit_program(1);
     834             :             }
     835             : 
     836        4169 :             MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
     837             :                                  hwaccel_output_format, ic, st);
     838        4169 :             if (hwaccel_output_format) {
     839           0 :                 ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
     840           0 :                 if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
     841           0 :                     av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
     842             :                            "format: %s", hwaccel_output_format);
     843             :                 }
     844             :             } else {
     845        4169 :                 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
     846             :             }
     847             : 
     848        4169 :             ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
     849             : 
     850        4169 :             break;
     851        1279 :         case AVMEDIA_TYPE_AUDIO:
     852        1279 :             ist->guess_layout_max = INT_MAX;
     853        1279 :             MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
     854        1279 :             guess_input_channel_layout(ist);
     855        1279 :             break;
     856          85 :         case AVMEDIA_TYPE_DATA:
     857             :         case AVMEDIA_TYPE_SUBTITLE: {
     858          85 :             char *canvas_size = NULL;
     859          85 :             if(!ist->dec)
     860          44 :                 ist->dec = avcodec_find_decoder(par->codec_id);
     861          85 :             MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
     862          85 :             MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
     863          85 :             if (canvas_size &&
     864           0 :                 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
     865           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
     866           0 :                 exit_program(1);
     867             :             }
     868          85 :             break;
     869             :         }
     870           1 :         case AVMEDIA_TYPE_ATTACHMENT:
     871             :         case AVMEDIA_TYPE_UNKNOWN:
     872           1 :             break;
     873           0 :         default:
     874           0 :             abort();
     875             :         }
     876             : 
     877        5534 :         ret = avcodec_parameters_from_context(par, ist->dec_ctx);
     878        5534 :         if (ret < 0) {
     879           0 :             av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
     880           0 :             exit_program(1);
     881             :         }
     882             :     }
     883        5233 : }
     884             : 
     885        5135 : static void assert_file_overwrite(const char *filename)
     886             : {
     887        5135 :     if (file_overwrite && no_file_overwrite) {
     888           0 :         fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
     889           0 :         exit_program(1);
     890             :     }
     891             : 
     892        5135 :     if (!file_overwrite) {
     893        3827 :         const char *proto_name = avio_find_protocol_name(filename);
     894        3827 :         if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
     895           0 :             if (stdin_interaction && !no_file_overwrite) {
     896           0 :                 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
     897           0 :                 fflush(stderr);
     898           0 :                 term_exit();
     899           0 :                 signal(SIGINT, SIG_DFL);
     900           0 :                 if (!read_yesno()) {
     901           0 :                     av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
     902           0 :                     exit_program(1);
     903             :                 }
     904           0 :                 term_init();
     905             :             }
     906             :             else {
     907           0 :                 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
     908           0 :                 exit_program(1);
     909             :             }
     910             :         }
     911             :     }
     912        5135 : }
     913             : 
     914           0 : static void dump_attachment(AVStream *st, const char *filename)
     915             : {
     916             :     int ret;
     917           0 :     AVIOContext *out = NULL;
     918             :     AVDictionaryEntry *e;
     919             : 
     920           0 :     if (!st->codecpar->extradata_size) {
     921           0 :         av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
     922             :                nb_input_files - 1, st->index);
     923           0 :         return;
     924             :     }
     925           0 :     if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
     926           0 :         filename = e->value;
     927           0 :     if (!*filename) {
     928           0 :         av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
     929             :                "in stream #%d:%d.\n", nb_input_files - 1, st->index);
     930           0 :         exit_program(1);
     931             :     }
     932             : 
     933           0 :     assert_file_overwrite(filename);
     934             : 
     935           0 :     if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
     936           0 :         av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
     937             :                filename);
     938           0 :         exit_program(1);
     939             :     }
     940             : 
     941           0 :     avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
     942           0 :     avio_flush(out);
     943           0 :     avio_close(out);
     944             : }
     945             : 
     946        5233 : static int open_input_file(OptionsContext *o, const char *filename)
     947             : {
     948             :     InputFile *f;
     949             :     AVFormatContext *ic;
     950        5233 :     AVInputFormat *file_iformat = NULL;
     951             :     int err, i, ret;
     952             :     int64_t timestamp;
     953        5233 :     AVDictionary *unused_opts = NULL;
     954        5233 :     AVDictionaryEntry *e = NULL;
     955        5233 :     char *   video_codec_name = NULL;
     956        5233 :     char *   audio_codec_name = NULL;
     957        5233 :     char *subtitle_codec_name = NULL;
     958        5233 :     char *    data_codec_name = NULL;
     959        5233 :     int scan_all_pmts_set = 0;
     960             : 
     961        5233 :     if (o->format) {
     962        2391 :         if (!(file_iformat = av_find_input_format(o->format))) {
     963           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
     964           0 :             exit_program(1);
     965             :         }
     966             :     }
     967             : 
     968        5233 :     if (!strcmp(filename, "-"))
     969           0 :         filename = "pipe:";
     970             : 
     971       10466 :     stdin_interaction &= strncmp(filename, "pipe:", 5) &&
     972        5233 :                          strcmp(filename, "/dev/stdin");
     973             : 
     974             :     /* get default parameters from command line */
     975        5233 :     ic = avformat_alloc_context();
     976        5233 :     if (!ic) {
     977           0 :         print_error(filename, AVERROR(ENOMEM));
     978           0 :         exit_program(1);
     979             :     }
     980        5233 :     ic->flags |= AVFMT_FLAG_KEEP_SIDE_DATA;
     981        5233 :     if (o->nb_audio_sample_rate) {
     982          62 :         av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
     983             :     }
     984        5233 :     if (o->nb_audio_channels) {
     985             :         /* because we set audio_channels based on both the "ac" and
     986             :          * "channel_layout" options, we need to check that the specified
     987             :          * demuxer actually has the "channels" option before setting it */
     988          14 :         if (file_iformat && file_iformat->priv_class &&
     989           7 :             av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
     990             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
     991           7 :             av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
     992             :         }
     993             :     }
     994        5233 :     if (o->nb_frame_rates) {
     995             :         /* set the format-level framerate option;
     996             :          * this is important for video grabbers, e.g. x11 */
     997          48 :         if (file_iformat && file_iformat->priv_class &&
     998          24 :             av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
     999             :                         AV_OPT_SEARCH_FAKE_OBJ)) {
    1000          24 :             av_dict_set(&o->g->format_opts, "framerate",
    1001          24 :                         o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
    1002             :         }
    1003             :     }
    1004        5233 :     if (o->nb_frame_sizes) {
    1005         466 :         av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
    1006             :     }
    1007        5233 :     if (o->nb_frame_pix_fmts)
    1008         466 :         av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
    1009             : 
    1010        5233 :     MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
    1011        5233 :     MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
    1012        5233 :     MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
    1013        5233 :     MATCH_PER_TYPE_OPT(codec_names, str,     data_codec_name, ic, "d");
    1014             : 
    1015        5233 :     ic->video_codec_id   = video_codec_name ?
    1016        5233 :         find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : AV_CODEC_ID_NONE;
    1017        5233 :     ic->audio_codec_id   = audio_codec_name ?
    1018        5233 :         find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : AV_CODEC_ID_NONE;
    1019        5233 :     ic->subtitle_codec_id= subtitle_codec_name ?
    1020        5233 :         find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
    1021        5233 :     ic->data_codec_id    = data_codec_name ?
    1022        5233 :         find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0)->id : AV_CODEC_ID_NONE;
    1023             : 
    1024        5233 :     if (video_codec_name)
    1025        1891 :         av_format_set_video_codec   (ic, find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0));
    1026        5233 :     if (audio_codec_name)
    1027          10 :         av_format_set_audio_codec   (ic, find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0));
    1028        5233 :     if (subtitle_codec_name)
    1029           0 :         av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
    1030        5233 :     if (data_codec_name)
    1031           0 :         av_format_set_data_codec(ic, find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0));
    1032             : 
    1033        5233 :     ic->flags |= AVFMT_FLAG_NONBLOCK;
    1034        5233 :     ic->interrupt_callback = int_cb;
    1035             : 
    1036        5233 :     if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
    1037        5233 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
    1038        5233 :         scan_all_pmts_set = 1;
    1039             :     }
    1040             :     /* open the input file with generic avformat function */
    1041        5233 :     err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
    1042        5233 :     if (err < 0) {
    1043           0 :         print_error(filename, err);
    1044           0 :         if (err == AVERROR_PROTOCOL_NOT_FOUND)
    1045           0 :             av_log(NULL, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
    1046           0 :         exit_program(1);
    1047             :     }
    1048        5233 :     if (scan_all_pmts_set)
    1049        5233 :         av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
    1050        5233 :     remove_avoptions(&o->g->format_opts, o->g->codec_opts);
    1051        5233 :     assert_avoptions(o->g->format_opts);
    1052             : 
    1053             :     /* apply forced codec ids */
    1054       10677 :     for (i = 0; i < ic->nb_streams; i++)
    1055        5444 :         choose_decoder(o, ic, ic->streams[i]);
    1056             : 
    1057        5233 :     if (find_stream_info) {
    1058        5233 :         AVDictionary **opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
    1059        5233 :         int orig_nb_streams = ic->nb_streams;
    1060             : 
    1061             :         /* If not enough info to get the stream parameters, we decode the
    1062             :            first frames to get it. (used in mpeg case for example) */
    1063        5233 :         ret = avformat_find_stream_info(ic, opts);
    1064             : 
    1065       10677 :         for (i = 0; i < orig_nb_streams; i++)
    1066        5444 :             av_dict_free(&opts[i]);
    1067        5233 :         av_freep(&opts);
    1068             : 
    1069        5233 :         if (ret < 0) {
    1070           0 :             av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
    1071           0 :             if (ic->nb_streams == 0) {
    1072           0 :                 avformat_close_input(&ic);
    1073           0 :                 exit_program(1);
    1074             :             }
    1075             :         }
    1076             :     }
    1077             : 
    1078        5233 :     if (o->start_time_eof != AV_NOPTS_VALUE) {
    1079           0 :         if (ic->duration>0) {
    1080           0 :             o->start_time = o->start_time_eof + ic->duration;
    1081             :         } else
    1082           0 :             av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
    1083             :     }
    1084        5233 :     timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
    1085             :     /* add the stream start time */
    1086        5233 :     if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
    1087        3844 :         timestamp += ic->start_time;
    1088             : 
    1089             :     /* if seeking requested, we execute it */
    1090        5233 :     if (o->start_time != AV_NOPTS_VALUE) {
    1091          11 :         int64_t seek_timestamp = timestamp;
    1092             : 
    1093          11 :         if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
    1094          11 :             int dts_heuristic = 0;
    1095          22 :             for (i=0; i<ic->nb_streams; i++) {
    1096          11 :                 const AVCodecParameters *par = ic->streams[i]->codecpar;
    1097          11 :                 if (par->video_delay)
    1098           0 :                     dts_heuristic = 1;
    1099             :             }
    1100          11 :             if (dts_heuristic) {
    1101           0 :                 seek_timestamp -= 3*AV_TIME_BASE / 23;
    1102             :             }
    1103             :         }
    1104          11 :         ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
    1105          11 :         if (ret < 0) {
    1106           1 :             av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
    1107           1 :                    filename, (double)timestamp / AV_TIME_BASE);
    1108             :         }
    1109             :     }
    1110             : 
    1111             :     /* update the current parameters so that they match the one of the input stream */
    1112        5233 :     add_input_streams(o, ic);
    1113             : 
    1114             :     /* dump the file content */
    1115        5233 :     av_dump_format(ic, nb_input_files, filename, 0);
    1116             : 
    1117        5233 :     GROW_ARRAY(input_files, nb_input_files);
    1118        5233 :     f = av_mallocz(sizeof(*f));
    1119        5233 :     if (!f)
    1120           0 :         exit_program(1);
    1121        5233 :     input_files[nb_input_files - 1] = f;
    1122             : 
    1123        5233 :     f->ctx        = ic;
    1124        5233 :     f->ist_index  = nb_input_streams - ic->nb_streams;
    1125        5233 :     f->start_time = o->start_time;
    1126        5233 :     f->recording_time = o->recording_time;
    1127        5233 :     f->input_ts_offset = o->input_ts_offset;
    1128        5233 :     f->ts_offset  = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
    1129        5233 :     f->nb_streams = ic->nb_streams;
    1130        5233 :     f->rate_emu   = o->rate_emu;
    1131        5233 :     f->accurate_seek = o->accurate_seek;
    1132        5233 :     f->loop = o->loop;
    1133        5233 :     f->duration = 0;
    1134        5233 :     f->time_base = (AVRational){ 1, 1 };
    1135             : #if HAVE_PTHREADS
    1136        5233 :     f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
    1137             : #endif
    1138             : 
    1139             :     /* check if all codec options have been used */
    1140        5233 :     unused_opts = strip_specifiers(o->g->codec_opts);
    1141       10767 :     for (i = f->ist_index; i < nb_input_streams; i++) {
    1142        5534 :         e = NULL;
    1143       27963 :         while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
    1144             :                                 AV_DICT_IGNORE_SUFFIX)))
    1145       16895 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    1146             :     }
    1147             : 
    1148        5233 :     e = NULL;
    1149       10714 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    1150         248 :         const AVClass *class = avcodec_get_class();
    1151         248 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    1152             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1153         248 :         const AVClass *fclass = avformat_get_class();
    1154         248 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    1155             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    1156         248 :         if (!option || foption)
    1157           0 :             continue;
    1158             : 
    1159             : 
    1160         248 :         if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
    1161           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    1162             :                    "input file #%d (%s) is not a decoding option.\n", e->key,
    1163           0 :                    option->help ? option->help : "", nb_input_files - 1,
    1164             :                    filename);
    1165           0 :             exit_program(1);
    1166             :         }
    1167             : 
    1168         496 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    1169             :                "input file #%d (%s) has not been used for any stream. The most "
    1170             :                "likely reason is either wrong type (e.g. a video option with "
    1171             :                "no video streams) or that it is a private option of some decoder "
    1172             :                "which was not actually used for any stream.\n", e->key,
    1173         248 :                option->help ? option->help : "", nb_input_files - 1, filename);
    1174             :     }
    1175        5233 :     av_dict_free(&unused_opts);
    1176             : 
    1177        5233 :     for (i = 0; i < o->nb_dump_attachment; i++) {
    1178             :         int j;
    1179             : 
    1180           0 :         for (j = 0; j < ic->nb_streams; j++) {
    1181           0 :             AVStream *st = ic->streams[j];
    1182             : 
    1183           0 :             if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
    1184           0 :                 dump_attachment(st, o->dump_attachment[i].u.str);
    1185             :         }
    1186             :     }
    1187             : 
    1188        5233 :     input_stream_potentially_available = 1;
    1189             : 
    1190        5233 :     return 0;
    1191             : }
    1192             : 
    1193           0 : static uint8_t *get_line(AVIOContext *s)
    1194             : {
    1195             :     AVIOContext *line;
    1196             :     uint8_t *buf;
    1197             :     char c;
    1198             : 
    1199           0 :     if (avio_open_dyn_buf(&line) < 0) {
    1200           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
    1201           0 :         exit_program(1);
    1202             :     }
    1203             : 
    1204           0 :     while ((c = avio_r8(s)) && c != '\n')
    1205           0 :         avio_w8(line, c);
    1206           0 :     avio_w8(line, 0);
    1207           0 :     avio_close_dyn_buf(line, &buf);
    1208             : 
    1209           0 :     return buf;
    1210             : }
    1211             : 
    1212           0 : static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
    1213             : {
    1214           0 :     int i, ret = -1;
    1215             :     char filename[1000];
    1216           0 :     const char *base[3] = { getenv("AVCONV_DATADIR"),
    1217           0 :                             getenv("HOME"),
    1218             :                             AVCONV_DATADIR,
    1219             :                             };
    1220             : 
    1221           0 :     for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
    1222           0 :         if (!base[i])
    1223           0 :             continue;
    1224           0 :         if (codec_name) {
    1225           0 :             snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
    1226             :                      i != 1 ? "" : "/.avconv", codec_name, preset_name);
    1227           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1228             :         }
    1229           0 :         if (ret < 0) {
    1230           0 :             snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
    1231             :                      i != 1 ? "" : "/.avconv", preset_name);
    1232           0 :             ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
    1233             :         }
    1234             :     }
    1235           0 :     return ret;
    1236             : }
    1237             : 
    1238        5308 : static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
    1239             : {
    1240        5308 :     enum AVMediaType type = ost->st->codecpar->codec_type;
    1241        5308 :     char *codec_name = NULL;
    1242             : 
    1243        5308 :     if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
    1244        5298 :         MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
    1245        5298 :         if (!codec_name) {
    1246        2436 :             ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
    1247        2436 :                                                          NULL, ost->st->codecpar->codec_type);
    1248        2436 :             ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
    1249        2436 :             if (!ost->enc) {
    1250           0 :                 av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
    1251             :                        "output stream #%d:%d. Default encoder for format %s (codec %s) is "
    1252             :                        "probably disabled. Please choose an encoder manually.\n",
    1253           0 :                        ost->file_index, ost->index, s->oformat->name,
    1254           0 :                        avcodec_get_name(ost->st->codecpar->codec_id));
    1255           0 :                 return AVERROR_ENCODER_NOT_FOUND;
    1256             :             }
    1257        2862 :         } else if (!strcmp(codec_name, "copy"))
    1258         172 :             ost->stream_copy = 1;
    1259             :         else {
    1260        2690 :             ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
    1261        2690 :             ost->st->codecpar->codec_id = ost->enc->id;
    1262             :         }
    1263        5298 :         ost->encoding_needed = !ost->stream_copy;
    1264             :     } else {
    1265             :         /* no encoding supported for other media types */
    1266          10 :         ost->stream_copy     = 1;
    1267          10 :         ost->encoding_needed = 0;
    1268             :     }
    1269             : 
    1270        5308 :     return 0;
    1271             : }
    1272             : 
    1273        5308 : static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
    1274             : {
    1275             :     OutputStream *ost;
    1276        5308 :     AVStream *st = avformat_new_stream(oc, NULL);
    1277        5308 :     int idx      = oc->nb_streams - 1, ret = 0;
    1278        5308 :     const char *bsfs = NULL, *time_base = NULL;
    1279        5308 :     char *next, *codec_tag = NULL;
    1280        5308 :     double qscale = -1;
    1281             :     int i;
    1282             : 
    1283        5308 :     if (!st) {
    1284           0 :         av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
    1285           0 :         exit_program(1);
    1286             :     }
    1287             : 
    1288        5308 :     if (oc->nb_streams - 1 < o->nb_streamid_map)
    1289           0 :         st->id = o->streamid_map[oc->nb_streams - 1];
    1290             : 
    1291        5308 :     GROW_ARRAY(output_streams, nb_output_streams);
    1292        5308 :     if (!(ost = av_mallocz(sizeof(*ost))))
    1293           0 :         exit_program(1);
    1294        5308 :     output_streams[nb_output_streams - 1] = ost;
    1295             : 
    1296        5308 :     ost->file_index = nb_output_files - 1;
    1297        5308 :     ost->index      = idx;
    1298        5308 :     ost->st         = st;
    1299        5308 :     st->codecpar->codec_type = type;
    1300             : 
    1301        5308 :     ret = choose_encoder(o, oc, ost);
    1302        5308 :     if (ret < 0) {
    1303           0 :         av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
    1304             :                "%d:%d\n", ost->file_index, ost->index);
    1305           0 :         exit_program(1);
    1306             :     }
    1307             : 
    1308        5308 :     ost->enc_ctx = avcodec_alloc_context3(ost->enc);
    1309        5308 :     if (!ost->enc_ctx) {
    1310           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
    1311           0 :         exit_program(1);
    1312             :     }
    1313        5308 :     ost->enc_ctx->codec_type = type;
    1314             : 
    1315        5308 :     ost->ref_par = avcodec_parameters_alloc();
    1316        5308 :     if (!ost->ref_par) {
    1317           0 :         av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding parameters.\n");
    1318           0 :         exit_program(1);
    1319             :     }
    1320             : 
    1321        5308 :     if (ost->enc) {
    1322        5126 :         AVIOContext *s = NULL;
    1323        5126 :         char *buf = NULL, *arg = NULL, *preset = NULL;
    1324             : 
    1325        5126 :         ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
    1326             : 
    1327        5126 :         MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
    1328        5126 :         if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
    1329             :             do  {
    1330           0 :                 buf = get_line(s);
    1331           0 :                 if (!buf[0] || buf[0] == '#') {
    1332           0 :                     av_free(buf);
    1333           0 :                     continue;
    1334             :                 }
    1335           0 :                 if (!(arg = strchr(buf, '='))) {
    1336           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
    1337           0 :                     exit_program(1);
    1338             :                 }
    1339           0 :                 *arg++ = 0;
    1340           0 :                 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
    1341           0 :                 av_free(buf);
    1342           0 :             } while (!s->eof_reached);
    1343           0 :             avio_closep(&s);
    1344             :         }
    1345        5126 :         if (ret) {
    1346           0 :             av_log(NULL, AV_LOG_FATAL,
    1347             :                    "Preset %s specified for stream %d:%d, but could not be opened.\n",
    1348             :                    preset, ost->file_index, ost->index);
    1349           0 :             exit_program(1);
    1350             :         }
    1351             :     } else {
    1352         182 :         ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
    1353             :     }
    1354             : 
    1355        5308 :     MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
    1356        5308 :     if (time_base) {
    1357             :         AVRational q;
    1358           2 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1359           2 :             q.num <= 0 || q.den <= 0) {
    1360           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1361           0 :             exit_program(1);
    1362             :         }
    1363           1 :         st->time_base = q;
    1364             :     }
    1365             : 
    1366        5308 :     MATCH_PER_STREAM_OPT(enc_time_bases, str, time_base, oc, st);
    1367        5308 :     if (time_base) {
    1368             :         AVRational q;
    1369           2 :         if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
    1370           1 :             q.den <= 0) {
    1371           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
    1372           0 :             exit_program(1);
    1373             :         }
    1374           1 :         ost->enc_timebase = q;
    1375             :     }
    1376             : 
    1377        5308 :     ost->max_frames = INT64_MAX;
    1378        5308 :     MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
    1379        8706 :     for (i = 0; i<o->nb_max_frames; i++) {
    1380        3404 :         char *p = o->max_frames[i].specifier;
    1381        3404 :         if (!*p && type != AVMEDIA_TYPE_VIDEO) {
    1382           6 :             av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
    1383           6 :             break;
    1384             :         }
    1385             :     }
    1386             : 
    1387        5308 :     ost->copy_prior_start = -1;
    1388        5308 :     MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
    1389             : 
    1390        5308 :     MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
    1391       10623 :     while (bsfs && *bsfs) {
    1392             :         const AVBitStreamFilter *filter;
    1393             :         char *bsf, *bsf_options_str, *bsf_name;
    1394             : 
    1395           7 :         bsf = av_get_token(&bsfs, ",");
    1396           7 :         if (!bsf)
    1397           0 :             exit_program(1);
    1398           7 :         bsf_name = av_strtok(bsf, "=", &bsf_options_str);
    1399           7 :         if (!bsf_name)
    1400           0 :             exit_program(1);
    1401             : 
    1402           7 :         filter = av_bsf_get_by_name(bsf_name);
    1403           7 :         if (!filter) {
    1404           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
    1405           0 :             exit_program(1);
    1406             :         }
    1407             : 
    1408           7 :         ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
    1409           7 :                                         ost->nb_bitstream_filters + 1,
    1410             :                                         sizeof(*ost->bsf_ctx));
    1411           7 :         if (!ost->bsf_ctx)
    1412           0 :             exit_program(1);
    1413             : 
    1414           7 :         ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
    1415           7 :         if (ret < 0) {
    1416           0 :             av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
    1417           0 :             exit_program(1);
    1418             :         }
    1419             : 
    1420           7 :         ost->nb_bitstream_filters++;
    1421             : 
    1422           7 :         if (bsf_options_str && filter->priv_class) {
    1423           3 :             const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
    1424           3 :             const char * shorthand[2] = {NULL};
    1425             : 
    1426           3 :             if (opt)
    1427           3 :                 shorthand[0] = opt->name;
    1428             : 
    1429           3 :             ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
    1430           3 :             if (ret < 0) {
    1431           0 :                 av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
    1432           0 :                 exit_program(1);
    1433             :             }
    1434             :         }
    1435           7 :         av_freep(&bsf);
    1436             : 
    1437           7 :         if (*bsfs)
    1438           0 :             bsfs++;
    1439             :     }
    1440             : 
    1441        5308 :     MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
    1442        5308 :     if (codec_tag) {
    1443           0 :         uint32_t tag = strtol(codec_tag, &next, 0);
    1444           0 :         if (*next)
    1445           0 :             tag = AV_RL32(codec_tag);
    1446           0 :         ost->st->codecpar->codec_tag =
    1447           0 :         ost->enc_ctx->codec_tag = tag;
    1448             :     }
    1449             : 
    1450        5308 :     MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
    1451        5308 :     if (qscale >= 0) {
    1452         223 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
    1453         223 :         ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
    1454             :     }
    1455             : 
    1456        5308 :     MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
    1457        5308 :     ost->disposition = av_strdup(ost->disposition);
    1458             : 
    1459        5308 :     ost->max_muxing_queue_size = 128;
    1460        5308 :     MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
    1461        5308 :     ost->max_muxing_queue_size *= sizeof(AVPacket);
    1462             : 
    1463        5308 :     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
    1464        1879 :         ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
    1465             : 
    1466        5308 :     av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
    1467             : 
    1468        5308 :     av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
    1469        5308 :     if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
    1470          49 :         av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
    1471             : 
    1472        5308 :     av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
    1473             : 
    1474        5308 :     ost->source_index = source_index;
    1475        5308 :     if (source_index >= 0) {
    1476        5260 :         ost->sync_ist = input_streams[source_index];
    1477        5260 :         input_streams[source_index]->discard = 0;
    1478        5260 :         input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
    1479             :     }
    1480        5308 :     ost->last_mux_dts = AV_NOPTS_VALUE;
    1481             : 
    1482        5308 :     ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
    1483        5308 :     if (!ost->muxing_queue)
    1484           0 :         exit_program(1);
    1485             : 
    1486        5308 :     return ost;
    1487             : }
    1488             : 
    1489           0 : static void parse_matrix_coeffs(uint16_t *dest, const char *str)
    1490             : {
    1491             :     int i;
    1492           0 :     const char *p = str;
    1493           0 :     for (i = 0;; i++) {
    1494           0 :         dest[i] = atoi(p);
    1495           0 :         if (i == 63)
    1496           0 :             break;
    1497           0 :         p = strchr(p, ',');
    1498           0 :         if (!p) {
    1499           0 :             av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
    1500           0 :             exit_program(1);
    1501             :         }
    1502           0 :         p++;
    1503             :     }
    1504           0 : }
    1505             : 
    1506             : /* read file contents into a string */
    1507          25 : static uint8_t *read_file(const char *filename)
    1508             : {
    1509          25 :     AVIOContext *pb      = NULL;
    1510          25 :     AVIOContext *dyn_buf = NULL;
    1511          25 :     int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
    1512             :     uint8_t buf[1024], *str;
    1513             : 
    1514          25 :     if (ret < 0) {
    1515           0 :         av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
    1516           0 :         return NULL;
    1517             :     }
    1518             : 
    1519          25 :     ret = avio_open_dyn_buf(&dyn_buf);
    1520          25 :     if (ret < 0) {
    1521           0 :         avio_closep(&pb);
    1522           0 :         return NULL;
    1523             :     }
    1524          75 :     while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
    1525          25 :         avio_write(dyn_buf, buf, ret);
    1526          25 :     avio_w8(dyn_buf, 0);
    1527          25 :     avio_closep(&pb);
    1528             : 
    1529          25 :     ret = avio_close_dyn_buf(dyn_buf, &str);
    1530          25 :     if (ret < 0)
    1531           0 :         return NULL;
    1532          25 :     return str;
    1533             : }
    1534             : 
    1535        5097 : static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
    1536             :                              OutputStream *ost)
    1537             : {
    1538        5097 :     AVStream *st = ost->st;
    1539             : 
    1540        5097 :     if (ost->filters_script && ost->filters) {
    1541           0 :         av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
    1542             :                "output stream #%d:%d.\n", nb_output_files, st->index);
    1543           0 :         exit_program(1);
    1544             :     }
    1545             : 
    1546        5097 :     if (ost->filters_script)
    1547           4 :         return read_file(ost->filters_script);
    1548        5093 :     else if (ost->filters)
    1549        2154 :         return av_strdup(ost->filters);
    1550             : 
    1551        2939 :     return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
    1552             :                      "null" : "anull");
    1553             : }
    1554             : 
    1555         166 : static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
    1556             :                                      const OutputStream *ost, enum AVMediaType type)
    1557             : {
    1558         166 :     if (ost->filters_script || ost->filters) {
    1559           0 :         av_log(NULL, AV_LOG_ERROR,
    1560             :                "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
    1561             :                "Filtering and streamcopy cannot be used together.\n",
    1562           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    1563           0 :                ost->filters ? ost->filters : ost->filters_script,
    1564             :                av_get_media_type_string(type), ost->file_index, ost->index);
    1565           0 :         exit_program(1);
    1566             :     }
    1567         166 : }
    1568             : 
    1569        4122 : static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1570             : {
    1571             :     AVStream *st;
    1572             :     OutputStream *ost;
    1573             :     AVCodecContext *video_enc;
    1574        4122 :     char *frame_rate = NULL, *frame_aspect_ratio = NULL;
    1575             : 
    1576        4122 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
    1577        4122 :     st  = ost->st;
    1578        4122 :     video_enc = ost->enc_ctx;
    1579             : 
    1580        4122 :     MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
    1581        4122 :     if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
    1582           0 :         av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
    1583           0 :         exit_program(1);
    1584             :     }
    1585        4122 :     if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
    1586           0 :         av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
    1587             : 
    1588        4122 :     MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
    1589        4122 :     if (frame_aspect_ratio) {
    1590             :         AVRational q;
    1591           0 :         if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
    1592           0 :             q.num <= 0 || q.den <= 0) {
    1593           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
    1594           0 :             exit_program(1);
    1595             :         }
    1596           0 :         ost->frame_aspect_ratio = q;
    1597             :     }
    1598             : 
    1599        4122 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1600        4122 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1601             : 
    1602        4122 :     if (!ost->stream_copy) {
    1603        4044 :         const char *p = NULL;
    1604        4044 :         char *frame_size = NULL;
    1605        4044 :         char *frame_pix_fmt = NULL;
    1606        4044 :         char *intra_matrix = NULL, *inter_matrix = NULL;
    1607        4044 :         char *chroma_intra_matrix = NULL;
    1608        4044 :         int do_pass = 0;
    1609             :         int i;
    1610             : 
    1611        4044 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1612        4044 :         if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
    1613           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1614           0 :             exit_program(1);
    1615             :         }
    1616             : 
    1617        4044 :         video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
    1618        4044 :         MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
    1619        4044 :         if (frame_pix_fmt && *frame_pix_fmt == '+') {
    1620           0 :             ost->keep_pix_fmt = 1;
    1621           0 :             if (!*++frame_pix_fmt)
    1622           0 :                 frame_pix_fmt = NULL;
    1623             :         }
    1624        4044 :         if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
    1625           0 :             av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
    1626           0 :             exit_program(1);
    1627             :         }
    1628        4044 :         st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
    1629             : 
    1630        4044 :         if (intra_only)
    1631           0 :             video_enc->gop_size = 0;
    1632        4044 :         MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
    1633        4044 :         if (intra_matrix) {
    1634           0 :             if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
    1635           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1636           0 :                 exit_program(1);
    1637             :             }
    1638           0 :             parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
    1639             :         }
    1640        4044 :         MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
    1641        4044 :         if (chroma_intra_matrix) {
    1642           0 :             uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
    1643           0 :             if (!p) {
    1644           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
    1645           0 :                 exit_program(1);
    1646             :             }
    1647           0 :             av_codec_set_chroma_intra_matrix(video_enc, p);
    1648           0 :             parse_matrix_coeffs(p, chroma_intra_matrix);
    1649             :         }
    1650        4044 :         MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
    1651        4044 :         if (inter_matrix) {
    1652           0 :             if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
    1653           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
    1654           0 :                 exit_program(1);
    1655             :             }
    1656           0 :             parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
    1657             :         }
    1658             : 
    1659        4044 :         MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
    1660        4044 :         for (i = 0; p; i++) {
    1661             :             int start, end, q;
    1662           0 :             int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
    1663           0 :             if (e != 3) {
    1664           0 :                 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
    1665           0 :                 exit_program(1);
    1666             :             }
    1667           0 :             video_enc->rc_override =
    1668           0 :                 av_realloc_array(video_enc->rc_override,
    1669           0 :                                  i + 1, sizeof(RcOverride));
    1670           0 :             if (!video_enc->rc_override) {
    1671           0 :                 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
    1672           0 :                 exit_program(1);
    1673             :             }
    1674           0 :             video_enc->rc_override[i].start_frame = start;
    1675           0 :             video_enc->rc_override[i].end_frame   = end;
    1676           0 :             if (q > 0) {
    1677           0 :                 video_enc->rc_override[i].qscale         = q;
    1678           0 :                 video_enc->rc_override[i].quality_factor = 1.0;
    1679             :             }
    1680             :             else {
    1681           0 :                 video_enc->rc_override[i].qscale         = 0;
    1682           0 :                 video_enc->rc_override[i].quality_factor = -q/100.0;
    1683             :             }
    1684           0 :             p = strchr(p, '/');
    1685           0 :             if (p) p++;
    1686             :         }
    1687        4044 :         video_enc->rc_override_count = i;
    1688             : 
    1689        4044 :         if (do_psnr)
    1690           0 :             video_enc->flags|= AV_CODEC_FLAG_PSNR;
    1691             : 
    1692             :         /* two pass mode */
    1693        4044 :         MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
    1694        4044 :         if (do_pass) {
    1695           0 :             if (do_pass & 1) {
    1696           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS1;
    1697           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
    1698             :             }
    1699           0 :             if (do_pass & 2) {
    1700           0 :                 video_enc->flags |= AV_CODEC_FLAG_PASS2;
    1701           0 :                 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
    1702             :             }
    1703             :         }
    1704             : 
    1705        4044 :         MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
    1706        4044 :         if (ost->logfile_prefix &&
    1707           0 :             !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
    1708           0 :             exit_program(1);
    1709             : 
    1710        4044 :         if (do_pass) {
    1711             :             char logfilename[1024];
    1712             :             FILE *f;
    1713             : 
    1714           0 :             snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
    1715           0 :                      ost->logfile_prefix ? ost->logfile_prefix :
    1716             :                                            DEFAULT_PASS_LOGFILENAME_PREFIX,
    1717             :                      i);
    1718           0 :             if (!strcmp(ost->enc->name, "libx264")) {
    1719           0 :                 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
    1720             :             } else {
    1721           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
    1722           0 :                     char  *logbuffer = read_file(logfilename);
    1723             : 
    1724           0 :                     if (!logbuffer) {
    1725           0 :                         av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
    1726             :                                logfilename);
    1727           0 :                         exit_program(1);
    1728             :                     }
    1729           0 :                     video_enc->stats_in = logbuffer;
    1730             :                 }
    1731           0 :                 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
    1732           0 :                     f = av_fopen_utf8(logfilename, "wb");
    1733           0 :                     if (!f) {
    1734           0 :                         av_log(NULL, AV_LOG_FATAL,
    1735             :                                "Cannot write log file '%s' for pass-1 encoding: %s\n",
    1736           0 :                                logfilename, strerror(errno));
    1737           0 :                         exit_program(1);
    1738             :                     }
    1739           0 :                     ost->logfile = f;
    1740             :                 }
    1741             :             }
    1742             :         }
    1743             : 
    1744        4044 :         MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
    1745        4044 :         if (ost->forced_keyframes)
    1746           1 :             ost->forced_keyframes = av_strdup(ost->forced_keyframes);
    1747             : 
    1748        4044 :         MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
    1749             : 
    1750        4044 :         ost->top_field_first = -1;
    1751        4044 :         MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
    1752             : 
    1753             : 
    1754        4044 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1755        4044 :         if (!ost->avfilter)
    1756           0 :             exit_program(1);
    1757             :     } else {
    1758          78 :         MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
    1759             :     }
    1760             : 
    1761        4122 :     if (ost->stream_copy)
    1762          78 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
    1763             : 
    1764        4122 :     return ost;
    1765             : }
    1766             : 
    1767        1141 : static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1768             : {
    1769             :     int n;
    1770             :     AVStream *st;
    1771             :     OutputStream *ost;
    1772             :     AVCodecContext *audio_enc;
    1773             : 
    1774        1141 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
    1775        1141 :     st  = ost->st;
    1776             : 
    1777        1141 :     audio_enc = ost->enc_ctx;
    1778        1141 :     audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
    1779             : 
    1780        1141 :     MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
    1781        1141 :     MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
    1782             : 
    1783        1141 :     if (!ost->stream_copy) {
    1784        1053 :         char *sample_fmt = NULL;
    1785             : 
    1786        1053 :         MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
    1787             : 
    1788        1053 :         MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
    1789        1053 :         if (sample_fmt &&
    1790           0 :             (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
    1791           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
    1792           0 :             exit_program(1);
    1793             :         }
    1794             : 
    1795        1053 :         MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
    1796             : 
    1797        1053 :         MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
    1798        1053 :         ost->apad = av_strdup(ost->apad);
    1799             : 
    1800        1053 :         ost->avfilter = get_ost_filters(o, oc, ost);
    1801        1053 :         if (!ost->avfilter)
    1802           0 :             exit_program(1);
    1803             : 
    1804             :         /* check for channel mapping for this audio stream */
    1805        1059 :         for (n = 0; n < o->nb_audio_channel_maps; n++) {
    1806           6 :             AudioChannelMap *map = &o->audio_channel_maps[n];
    1807          12 :             if ((map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
    1808           6 :                 (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
    1809             :                 InputStream *ist;
    1810             : 
    1811           6 :                 if (map->channel_idx == -1) {
    1812           1 :                     ist = NULL;
    1813           5 :                 } else if (ost->source_index < 0) {
    1814           0 :                     av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
    1815           0 :                            ost->file_index, ost->st->index);
    1816           0 :                     continue;
    1817             :                 } else {
    1818           5 :                     ist = input_streams[ost->source_index];
    1819             :                 }
    1820             : 
    1821           6 :                 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
    1822           6 :                     if (av_reallocp_array(&ost->audio_channels_map,
    1823           6 :                                           ost->audio_channels_mapped + 1,
    1824             :                                           sizeof(*ost->audio_channels_map)
    1825             :                                           ) < 0 )
    1826           0 :                         exit_program(1);
    1827             : 
    1828           6 :                     ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
    1829             :                 }
    1830             :             }
    1831             :         }
    1832             :     }
    1833             : 
    1834        1141 :     if (ost->stream_copy)
    1835          88 :         check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
    1836             : 
    1837        1141 :     return ost;
    1838             : }
    1839             : 
    1840           9 : static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1841             : {
    1842             :     OutputStream *ost;
    1843             : 
    1844           9 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
    1845           9 :     if (!ost->stream_copy) {
    1846           0 :         av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
    1847           0 :         exit_program(1);
    1848             :     }
    1849             : 
    1850           9 :     return ost;
    1851             : }
    1852             : 
    1853           0 : static OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1854             : {
    1855             :     OutputStream *ost;
    1856             : 
    1857           0 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
    1858           0 :     if (!ost->stream_copy) {
    1859           0 :         av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
    1860           0 :         exit_program(1);
    1861             :     }
    1862             : 
    1863           0 :     return ost;
    1864             : }
    1865             : 
    1866           1 : static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1867             : {
    1868           1 :     OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
    1869           1 :     ost->stream_copy = 1;
    1870           1 :     ost->finished    = 1;
    1871           1 :     return ost;
    1872             : }
    1873             : 
    1874          35 : static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
    1875             : {
    1876             :     AVStream *st;
    1877             :     OutputStream *ost;
    1878             :     AVCodecContext *subtitle_enc;
    1879             : 
    1880          35 :     ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
    1881          35 :     st  = ost->st;
    1882          35 :     subtitle_enc = ost->enc_ctx;
    1883             : 
    1884          35 :     subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
    1885             : 
    1886          35 :     MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
    1887             : 
    1888          35 :     if (!ost->stream_copy) {
    1889          29 :         char *frame_size = NULL;
    1890             : 
    1891          29 :         MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
    1892          29 :         if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
    1893           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
    1894           0 :             exit_program(1);
    1895             :         }
    1896             :     }
    1897             : 
    1898          35 :     return ost;
    1899             : }
    1900             : 
    1901             : /* arg format is "output-stream-index:streamid-value". */
    1902           0 : static int opt_streamid(void *optctx, const char *opt, const char *arg)
    1903             : {
    1904           0 :     OptionsContext *o = optctx;
    1905             :     int idx;
    1906             :     char *p;
    1907             :     char idx_str[16];
    1908             : 
    1909           0 :     av_strlcpy(idx_str, arg, sizeof(idx_str));
    1910           0 :     p = strchr(idx_str, ':');
    1911           0 :     if (!p) {
    1912           0 :         av_log(NULL, AV_LOG_FATAL,
    1913             :                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
    1914             :                arg, opt);
    1915           0 :         exit_program(1);
    1916             :     }
    1917           0 :     *p++ = '\0';
    1918           0 :     idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
    1919           0 :     o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
    1920           0 :     o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
    1921           0 :     return 0;
    1922             : }
    1923             : 
    1924          10 : static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
    1925             : {
    1926          10 :     AVFormatContext *is = ifile->ctx;
    1927          10 :     AVFormatContext *os = ofile->ctx;
    1928             :     AVChapter **tmp;
    1929             :     int i;
    1930             : 
    1931          10 :     tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
    1932          10 :     if (!tmp)
    1933           0 :         return AVERROR(ENOMEM);
    1934          10 :     os->chapters = tmp;
    1935             : 
    1936          20 :     for (i = 0; i < is->nb_chapters; i++) {
    1937          10 :         AVChapter *in_ch = is->chapters[i], *out_ch;
    1938          10 :         int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
    1939          10 :         int64_t ts_off   = av_rescale_q(start_time - ifile->ts_offset,
    1940          10 :                                        AV_TIME_BASE_Q, in_ch->time_base);
    1941          10 :         int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
    1942           0 :                            av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
    1943             : 
    1944             : 
    1945          10 :         if (in_ch->end < ts_off)
    1946           0 :             continue;
    1947          10 :         if (rt != INT64_MAX && in_ch->start > rt + ts_off)
    1948           0 :             break;
    1949             : 
    1950          10 :         out_ch = av_mallocz(sizeof(AVChapter));
    1951          10 :         if (!out_ch)
    1952           0 :             return AVERROR(ENOMEM);
    1953             : 
    1954          10 :         out_ch->id        = in_ch->id;
    1955          10 :         out_ch->time_base = in_ch->time_base;
    1956          10 :         out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
    1957          10 :         out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
    1958             : 
    1959          10 :         if (copy_metadata)
    1960          10 :             av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
    1961             : 
    1962          10 :         os->chapters[os->nb_chapters++] = out_ch;
    1963             :     }
    1964          10 :     return 0;
    1965             : }
    1966             : 
    1967           0 : static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
    1968             : {
    1969             :     int i, err;
    1970           0 :     AVFormatContext *ic = avformat_alloc_context();
    1971             : 
    1972           0 :     ic->flags |= AVFMT_FLAG_KEEP_SIDE_DATA;
    1973           0 :     ic->interrupt_callback = int_cb;
    1974           0 :     err = avformat_open_input(&ic, filename, NULL, NULL);
    1975           0 :     if (err < 0)
    1976           0 :         return err;
    1977             :     /* copy stream format */
    1978           0 :     for(i=0;i<ic->nb_streams;i++) {
    1979             :         AVStream *st;
    1980             :         OutputStream *ost;
    1981             :         AVCodec *codec;
    1982             :         const char *enc_config;
    1983             : 
    1984           0 :         codec = avcodec_find_encoder(ic->streams[i]->codecpar->codec_id);
    1985           0 :         if (!codec) {
    1986           0 :             av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codecpar->codec_id);
    1987           0 :             return AVERROR(EINVAL);
    1988             :         }
    1989           0 :         if (codec->type == AVMEDIA_TYPE_AUDIO)
    1990           0 :             opt_audio_codec(o, "c:a", codec->name);
    1991           0 :         else if (codec->type == AVMEDIA_TYPE_VIDEO)
    1992           0 :             opt_video_codec(o, "c:v", codec->name);
    1993           0 :         ost   = new_output_stream(o, s, codec->type, -1);
    1994           0 :         st    = ost->st;
    1995             : 
    1996           0 :         avcodec_get_context_defaults3(st->codec, codec);
    1997           0 :         enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
    1998           0 :         if (enc_config) {
    1999           0 :             AVDictionary *opts = NULL;
    2000           0 :             av_dict_parse_string(&opts, enc_config, "=", ",", 0);
    2001           0 :             av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
    2002           0 :             av_dict_free(&opts);
    2003             :         }
    2004             : 
    2005           0 :         if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
    2006           0 :             choose_sample_fmt(st, codec);
    2007           0 :         else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
    2008           0 :             choose_pixel_fmt(st, st->codec, codec, st->codecpar->format);
    2009           0 :         avcodec_copy_context(ost->enc_ctx, st->codec);
    2010           0 :         if (enc_config)
    2011           0 :             av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
    2012             :     }
    2013             : 
    2014           0 :     avformat_close_input(&ic);
    2015           0 :     return err;
    2016             : }
    2017             : 
    2018          47 : static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
    2019             :                                AVFormatContext *oc)
    2020             : {
    2021             :     OutputStream *ost;
    2022             : 
    2023          47 :     switch (ofilter->type) {
    2024          34 :     case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
    2025          13 :     case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
    2026           0 :     default:
    2027           0 :         av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
    2028             :                "currently.\n");
    2029           0 :         exit_program(1);
    2030             :     }
    2031             : 
    2032          47 :     ost->source_index = -1;
    2033          47 :     ost->filter       = ofilter;
    2034             : 
    2035          47 :     ofilter->ost      = ost;
    2036          47 :     ofilter->format   = -1;
    2037             : 
    2038          47 :     if (ost->stream_copy) {
    2039           0 :         av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
    2040             :                "which is fed from a complex filtergraph. Filtering and streamcopy "
    2041             :                "cannot be used together.\n", ost->file_index, ost->index);
    2042           0 :         exit_program(1);
    2043             :     }
    2044             : 
    2045          47 :     if (ost->avfilter && (ost->filters || ost->filters_script)) {
    2046           0 :         const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
    2047           0 :         av_log(NULL, AV_LOG_ERROR,
    2048             :                "%s '%s' was specified through the %s option "
    2049             :                "for output stream %d:%d, which is fed from a complex filtergraph.\n"
    2050             :                "%s and -filter_complex cannot be used together for the same stream.\n",
    2051           0 :                ost->filters ? "Filtergraph" : "Filtergraph script",
    2052           0 :                ost->filters ? ost->filters : ost->filters_script,
    2053             :                opt, ost->file_index, ost->index, opt);
    2054           0 :         exit_program(1);
    2055             :     }
    2056             : 
    2057          47 :     avfilter_inout_free(&ofilter->out_tmp);
    2058          47 : }
    2059             : 
    2060        5175 : static int init_complex_filters(void)
    2061             : {
    2062        5175 :     int i, ret = 0;
    2063             : 
    2064        5220 :     for (i = 0; i < nb_filtergraphs; i++) {
    2065          45 :         ret = init_complex_filtergraph(filtergraphs[i]);
    2066          45 :         if (ret < 0)
    2067           0 :             return ret;
    2068             :     }
    2069        5175 :     return 0;
    2070             : }
    2071             : 
    2072        5176 : static int open_output_file(OptionsContext *o, const char *filename)
    2073             : {
    2074             :     AVFormatContext *oc;
    2075             :     int i, j, err;
    2076             :     AVOutputFormat *file_oformat;
    2077             :     OutputFile *of;
    2078             :     OutputStream *ost;
    2079             :     InputStream  *ist;
    2080        5176 :     AVDictionary *unused_opts = NULL;
    2081        5176 :     AVDictionaryEntry *e = NULL;
    2082        5176 :     int format_flags = 0;
    2083             : 
    2084        5176 :     if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
    2085           0 :         o->stop_time = INT64_MAX;
    2086           0 :         av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
    2087             :     }
    2088             : 
    2089        5176 :     if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
    2090           0 :         int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
    2091           0 :         if (o->stop_time <= start_time) {
    2092           0 :             av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
    2093           0 :             exit_program(1);
    2094             :         } else {
    2095           0 :             o->recording_time = o->stop_time - start_time;
    2096             :         }
    2097             :     }
    2098             : 
    2099        5176 :     GROW_ARRAY(output_files, nb_output_files);
    2100        5176 :     of = av_mallocz(sizeof(*of));
    2101        5176 :     if (!of)
    2102           0 :         exit_program(1);
    2103        5176 :     output_files[nb_output_files - 1] = of;
    2104             : 
    2105        5176 :     of->ost_index      = nb_output_streams;
    2106        5176 :     of->recording_time = o->recording_time;
    2107        5176 :     of->start_time     = o->start_time;
    2108        5176 :     of->limit_filesize = o->limit_filesize;
    2109        5176 :     of->shortest       = o->shortest;
    2110        5176 :     av_dict_copy(&of->opts, o->g->format_opts, 0);
    2111             : 
    2112        5176 :     if (!strcmp(filename, "-"))
    2113        2047 :         filename = "pipe:";
    2114             : 
    2115        5176 :     err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
    2116        5176 :     if (!oc) {
    2117           0 :         print_error(filename, err);
    2118           0 :         exit_program(1);
    2119             :     }
    2120             : 
    2121        5176 :     of->ctx = oc;
    2122        5176 :     if (o->recording_time != INT64_MAX)
    2123         111 :         oc->duration = o->recording_time;
    2124             : 
    2125        5176 :     file_oformat= oc->oformat;
    2126        5176 :     oc->interrupt_callback = int_cb;
    2127             : 
    2128        5176 :     e = av_dict_get(o->g->format_opts, "fflags", NULL, 0);
    2129        5176 :     if (e) {
    2130        4365 :         const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
    2131        4365 :         av_opt_eval_flags(oc, o, e->value, &format_flags);
    2132             :     }
    2133             : 
    2134             :     /* create streams for all unlabeled output pads */
    2135        5222 :     for (i = 0; i < nb_filtergraphs; i++) {
    2136          46 :         FilterGraph *fg = filtergraphs[i];
    2137          94 :         for (j = 0; j < fg->nb_outputs; j++) {
    2138          48 :             OutputFilter *ofilter = fg->outputs[j];
    2139             : 
    2140          48 :             if (!ofilter->out_tmp || ofilter->out_tmp->name)
    2141           4 :                 continue;
    2142             : 
    2143          44 :             switch (ofilter->type) {
    2144          32 :             case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
    2145          12 :             case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
    2146           0 :             case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
    2147             :             }
    2148          44 :             init_output_filter(ofilter, o, oc);
    2149             :         }
    2150             :     }
    2151             : 
    2152             :     /* ffserver seeking with date=... needs a date reference */
    2153        5177 :     if (!strcmp(file_oformat->name, "ffm") &&
    2154           1 :         !(format_flags & AVFMT_FLAG_BITEXACT) &&
    2155           0 :         av_strstart(filename, "http:", NULL)) {
    2156           0 :         int err = parse_option(o, "metadata", "creation_time=now", options);
    2157           0 :         if (err < 0) {
    2158           0 :             print_error(filename, err);
    2159           0 :             exit_program(1);
    2160             :         }
    2161             :     }
    2162             : 
    2163        5177 :     if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
    2164           1 :         av_strstart(filename, "http:", NULL)) {
    2165             :         int j;
    2166             :         /* special case for files sent to ffserver: we get the stream
    2167             :            parameters from ffserver */
    2168           0 :         int err = read_ffserver_streams(o, oc, filename);
    2169           0 :         if (err < 0) {
    2170           0 :             print_error(filename, err);
    2171           0 :             exit_program(1);
    2172             :         }
    2173           0 :         for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
    2174           0 :             ost = output_streams[j];
    2175           0 :             for (i = 0; i < nb_input_streams; i++) {
    2176           0 :                 ist = input_streams[i];
    2177           0 :                 if(ist->st->codecpar->codec_type == ost->st->codecpar->codec_type){
    2178           0 :                     ost->sync_ist= ist;
    2179           0 :                     ost->source_index= i;
    2180           0 :                     if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
    2181           0 :                     if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
    2182           0 :                     ist->discard = 0;
    2183           0 :                     ist->st->discard = ist->user_set_discard;
    2184           0 :                     break;
    2185             :                 }
    2186             :             }
    2187           0 :             if(!ost->sync_ist){
    2188           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));
    2189           0 :                 exit_program(1);
    2190             :             }
    2191             :         }
    2192        5176 :     } else if (!o->nb_stream_maps) {
    2193        5145 :         char *subtitle_codec_name = NULL;
    2194             :         /* pick the "best" stream of each type */
    2195             : 
    2196             :         /* video: highest resolution */
    2197        5145 :         if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
    2198        4274 :             int area = 0, idx = -1;
    2199        4274 :             int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
    2200        8814 :             for (i = 0; i < nb_input_streams; i++) {
    2201             :                 int new_area;
    2202        4540 :                 ist = input_streams[i];
    2203        4540 :                 new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames;
    2204        4540 :                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2205           7 :                     new_area = 1;
    2206        4540 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
    2207             :                     new_area > area) {
    2208        4068 :                     if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
    2209           0 :                         continue;
    2210        4068 :                     area = new_area;
    2211        4068 :                     idx = i;
    2212             :                 }
    2213             :             }
    2214        4274 :             if (idx >= 0)
    2215        4068 :                 new_video_stream(o, oc, idx);
    2216             :         }
    2217             : 
    2218             :         /* audio: most channels */
    2219        5145 :         if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
    2220        4366 :             int best_score = 0, idx = -1;
    2221        8924 :             for (i = 0; i < nb_input_streams; i++) {
    2222             :                 int score;
    2223        4558 :                 ist = input_streams[i];
    2224        4558 :                 score = ist->st->codecpar->channels + 100000000*!!ist->st->codec_info_nb_frames;
    2225        4558 :                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
    2226             :                     score > best_score) {
    2227        1108 :                     best_score = score;
    2228        1108 :                     idx = i;
    2229             :                 }
    2230             :             }
    2231        4366 :             if (idx >= 0)
    2232        1108 :                 new_audio_stream(o, oc, idx);
    2233             :         }
    2234             : 
    2235             :         /* subtitles: pick first */
    2236        5145 :         MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
    2237        5145 :         if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
    2238          51 :             for (i = 0; i < nb_input_streams; i++)
    2239          44 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
    2240          33 :                     AVCodecDescriptor const *input_descriptor =
    2241          33 :                         avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
    2242          33 :                     AVCodecDescriptor const *output_descriptor = NULL;
    2243          33 :                     AVCodec const *output_codec =
    2244          33 :                         avcodec_find_encoder(oc->oformat->subtitle_codec);
    2245          33 :                     int input_props = 0, output_props = 0;
    2246          33 :                     if (output_codec)
    2247          32 :                         output_descriptor = avcodec_descriptor_get(output_codec->id);
    2248          33 :                     if (input_descriptor)
    2249          33 :                         input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2250          33 :                     if (output_descriptor)
    2251          32 :                         output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
    2252          60 :                     if (subtitle_codec_name ||
    2253          27 :                         input_props & output_props ||
    2254             :                         // Map dvb teletext which has neither property to any output subtitle encoder
    2255           0 :                         input_descriptor && output_descriptor &&
    2256           0 :                         (!input_descriptor->props ||
    2257           0 :                          !output_descriptor->props)) {
    2258          33 :                         new_subtitle_stream(o, oc, i);
    2259          33 :                         break;
    2260             :                     }
    2261             :                 }
    2262             :         }
    2263             :         /* Data only if codec id match */
    2264        5145 :         if (!o->data_disable ) {
    2265        5145 :             enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
    2266        5145 :             for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
    2267           0 :                 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
    2268           0 :                     && input_streams[i]->st->codecpar->codec_id == codec_id )
    2269           0 :                     new_data_stream(o, oc, i);
    2270             :             }
    2271             :         }
    2272             :     } else {
    2273          85 :         for (i = 0; i < o->nb_stream_maps; i++) {
    2274          54 :             StreamMap *map = &o->stream_maps[i];
    2275             : 
    2276          54 :             if (map->disabled)
    2277           0 :                 continue;
    2278             : 
    2279          54 :             if (map->linklabel) {
    2280             :                 FilterGraph *fg;
    2281           3 :                 OutputFilter *ofilter = NULL;
    2282             :                 int j, k;
    2283             : 
    2284           3 :                 for (j = 0; j < nb_filtergraphs; j++) {
    2285           3 :                     fg = filtergraphs[j];
    2286           3 :                     for (k = 0; k < fg->nb_outputs; k++) {
    2287           3 :                         AVFilterInOut *out = fg->outputs[k]->out_tmp;
    2288           3 :                         if (out && !strcmp(out->name, map->linklabel)) {
    2289           3 :                             ofilter = fg->outputs[k];
    2290           3 :                             goto loop_end;
    2291             :                         }
    2292             :                     }
    2293             :                 }
    2294           0 : loop_end:
    2295           3 :                 if (!ofilter) {
    2296           0 :                     av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
    2297             :                            "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
    2298           0 :                     exit_program(1);
    2299             :                 }
    2300           3 :                 init_output_filter(ofilter, o, oc);
    2301             :             } else {
    2302          51 :                 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
    2303             : 
    2304          51 :                 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
    2305          51 :                 if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
    2306           0 :                     continue;
    2307          51 :                 if(o->   audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
    2308           0 :                     continue;
    2309          51 :                 if(o->   video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
    2310           0 :                     continue;
    2311          51 :                 if(o->    data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
    2312           0 :                     continue;
    2313             : 
    2314          51 :                 ost = NULL;
    2315          51 :                 switch (ist->st->codecpar->codec_type) {
    2316          20 :                 case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
    2317          20 :                 case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
    2318           2 :                 case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
    2319           9 :                 case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
    2320           0 :                 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
    2321           0 :                 case AVMEDIA_TYPE_UNKNOWN:
    2322           0 :                     if (copy_unknown_streams) {
    2323           0 :                         ost = new_unknown_stream   (o, oc, src_idx);
    2324           0 :                         break;
    2325             :                     }
    2326             :                 default:
    2327           0 :                     av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
    2328             :                            "Cannot map stream #%d:%d - unsupported type.\n",
    2329             :                            map->file_index, map->stream_index);
    2330           0 :                     if (!ignore_unknown_streams) {
    2331           0 :                         av_log(NULL, AV_LOG_FATAL,
    2332             :                                "If you want unsupported types ignored instead "
    2333             :                                "of failing, please use the -ignore_unknown option\n"
    2334             :                                "If you want them copied, please use -copy_unknown\n");
    2335           0 :                         exit_program(1);
    2336             :                     }
    2337             :                 }
    2338          51 :                 if (ost)
    2339         102 :                     ost->sync_ist = input_streams[  input_files[map->sync_file_index]->ist_index
    2340          51 :                                                   + map->sync_stream_index];
    2341             :             }
    2342             :         }
    2343             :     }
    2344             : 
    2345             :     /* handle attached files */
    2346        5177 :     for (i = 0; i < o->nb_attachments; i++) {
    2347             :         AVIOContext *pb;
    2348             :         uint8_t *attachment;
    2349             :         const char *p;
    2350             :         int64_t len;
    2351             : 
    2352           1 :         if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
    2353           0 :             av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
    2354           0 :                    o->attachments[i]);
    2355           0 :             exit_program(1);
    2356             :         }
    2357           1 :         if ((len = avio_size(pb)) <= 0) {
    2358           0 :             av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
    2359           0 :                    o->attachments[i]);
    2360           0 :             exit_program(1);
    2361             :         }
    2362           1 :         if (!(attachment = av_malloc(len))) {
    2363           0 :             av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
    2364           0 :                    o->attachments[i]);
    2365           0 :             exit_program(1);
    2366             :         }
    2367           1 :         avio_read(pb, attachment, len);
    2368             : 
    2369           1 :         ost = new_attachment_stream(o, oc, -1);
    2370           1 :         ost->stream_copy               = 0;
    2371           1 :         ost->attachment_filename       = o->attachments[i];
    2372           1 :         ost->st->codecpar->extradata      = attachment;
    2373           1 :         ost->st->codecpar->extradata_size = len;
    2374             : 
    2375           1 :         p = strrchr(o->attachments[i], '/');
    2376           1 :         av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
    2377           1 :         avio_closep(&pb);
    2378             :     }
    2379             : 
    2380             : #if FF_API_LAVF_AVCTX
    2381       10484 :     for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
    2382             :         AVDictionaryEntry *e;
    2383        5308 :         ost = output_streams[i];
    2384             : 
    2385        5308 :         if ((ost->stream_copy || ost->attachment_filename)
    2386         182 :             && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
    2387         123 :             && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
    2388         123 :             if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
    2389           0 :                 exit_program(1);
    2390             :     }
    2391             : #endif
    2392             : 
    2393        5176 :     if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
    2394           0 :         av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
    2395           0 :         av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
    2396           0 :         exit_program(1);
    2397             :     }
    2398             : 
    2399             :     /* check if all codec options have been used */
    2400        5176 :     unused_opts = strip_specifiers(o->g->codec_opts);
    2401       10484 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2402        5308 :         e = NULL;
    2403       24048 :         while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
    2404             :                                 AV_DICT_IGNORE_SUFFIX)))
    2405       13432 :             av_dict_set(&unused_opts, e->key, NULL, 0);
    2406             :     }
    2407             : 
    2408        5176 :     e = NULL;
    2409       10601 :     while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
    2410         249 :         const AVClass *class = avcodec_get_class();
    2411         249 :         const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
    2412             :                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2413         249 :         const AVClass *fclass = avformat_get_class();
    2414         249 :         const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
    2415             :                                               AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
    2416         249 :         if (!option || foption)
    2417          10 :             continue;
    2418             : 
    2419             : 
    2420         248 :         if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
    2421           0 :             av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
    2422             :                    "output file #%d (%s) is not an encoding option.\n", e->key,
    2423           0 :                    option->help ? option->help : "", nb_output_files - 1,
    2424             :                    filename);
    2425           0 :             exit_program(1);
    2426             :         }
    2427             : 
    2428             :         // gop_timecode is injected by generic code but not always used
    2429         248 :         if (!strcmp(e->key, "gop_timecode"))
    2430           8 :             continue;
    2431             : 
    2432         480 :         av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
    2433             :                "output file #%d (%s) has not been used for any stream. The most "
    2434             :                "likely reason is either wrong type (e.g. a video option with "
    2435             :                "no video streams) or that it is a private option of some encoder "
    2436             :                "which was not actually used for any stream.\n", e->key,
    2437         240 :                option->help ? option->help : "", nb_output_files - 1, filename);
    2438             :     }
    2439        5176 :     av_dict_free(&unused_opts);
    2440             : 
    2441             :     /* set the decoding_needed flags and create simple filtergraphs */
    2442       10484 :     for (i = of->ost_index; i < nb_output_streams; i++) {
    2443        5308 :         OutputStream *ost = output_streams[i];
    2444             : 
    2445        5308 :         if (ost->encoding_needed && ost->source_index >= 0) {
    2446        5079 :             InputStream *ist = input_streams[ost->source_index];
    2447        5079 :             ist->decoding_needed |= DECODING_FOR_OST;
    2448             : 
    2449        6148 :             if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
    2450        1069 :                 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
    2451        5050 :                 err = init_simple_filtergraph(ist, ost);
    2452        5050 :                 if (err < 0) {
    2453           0 :                     av_log(NULL, AV_LOG_ERROR,
    2454             :                            "Error initializing a simple filtergraph between streams "
    2455             :                            "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
    2456           0 :                            nb_output_files - 1, ost->st->index);
    2457           0 :                     exit_program(1);
    2458             :                 }
    2459             :             }
    2460             :         }
    2461             : 
    2462             :         /* set the filter output constraints */
    2463        5308 :         if (ost->filter) {
    2464        5097 :             OutputFilter *f = ost->filter;
    2465             :             int count;
    2466        5097 :             switch (ost->enc_ctx->codec_type) {
    2467        4044 :             case AVMEDIA_TYPE_VIDEO:
    2468        4044 :                 f->frame_rate = ost->frame_rate;
    2469        4044 :                 f->width      = ost->enc_ctx->width;
    2470        4044 :                 f->height     = ost->enc_ctx->height;
    2471        4044 :                 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
    2472        2680 :                     f->format = ost->enc_ctx->pix_fmt;
    2473        1364 :                 } else if (ost->enc->pix_fmts) {
    2474         282 :                     count = 0;
    2475        1619 :                     while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
    2476        1055 :                         count++;
    2477         282 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2478         282 :                     if (!f->formats)
    2479           0 :                         exit_program(1);
    2480         282 :                     memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
    2481             :                 }
    2482        4044 :                 break;
    2483        1053 :             case AVMEDIA_TYPE_AUDIO:
    2484        1053 :                 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
    2485           0 :                     f->format = ost->enc_ctx->sample_fmt;
    2486        1053 :                 } else if (ost->enc->sample_fmts) {
    2487        1053 :                     count = 0;
    2488        3193 :                     while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
    2489        1087 :                         count++;
    2490        1053 :                     f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
    2491        1053 :                     if (!f->formats)
    2492           0 :                         exit_program(1);
    2493        1053 :                     memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
    2494             :                 }
    2495        1053 :                 if (ost->enc_ctx->sample_rate) {
    2496          26 :                     f->sample_rate = ost->enc_ctx->sample_rate;
    2497        1027 :                 } else if (ost->enc->supported_samplerates) {
    2498          22 :                     count = 0;
    2499         261 :                     while (ost->enc->supported_samplerates[count])
    2500         217 :                         count++;
    2501          22 :                     f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
    2502          22 :                     if (!f->sample_rates)
    2503           0 :                         exit_program(1);
    2504          22 :                     memcpy(f->sample_rates, ost->enc->supported_samplerates,
    2505          22 :                            (count + 1) * sizeof(*f->sample_rates));
    2506             :                 }
    2507        1053 :                 if (ost->enc_ctx->channels) {
    2508          12 :                     f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
    2509        1041 :                 } else if (ost->enc->channel_layouts) {
    2510          34 :                     count = 0;
    2511         274 :                     while (ost->enc->channel_layouts[count])
    2512         206 :                         count++;
    2513          34 :                     f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
    2514          34 :                     if (!f->channel_layouts)
    2515           0 :                         exit_program(1);
    2516          34 :                     memcpy(f->channel_layouts, ost->enc->channel_layouts,
    2517          34 :                            (count + 1) * sizeof(*f->channel_layouts));
    2518             :                 }
    2519        1053 :                 break;
    2520             :             }
    2521             :         }
    2522             :     }
    2523             : 
    2524             :     /* check filename in case of an image number is expected */
    2525        5176 :     if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
    2526           0 :         if (!av_filename_number_test(oc->filename)) {
    2527           0 :             print_error(oc->filename, AVERROR(EINVAL));
    2528           0 :             exit_program(1);
    2529             :         }
    2530             :     }
    2531             : 
    2532        5176 :     if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
    2533           0 :         av_log(NULL, AV_LOG_ERROR,
    2534             :                "No input streams but output needs an input stream\n");
    2535           0 :         exit_program(1);
    2536             :     }
    2537             : 
    2538        5176 :     if (!(oc->oformat->flags & AVFMT_NOFILE)) {
    2539             :         /* test if it already exists to avoid losing precious files */
    2540        5135 :         assert_file_overwrite(filename);
    2541             : 
    2542             :         /* open the file */
    2543       10270 :         if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
    2544        5135 :                               &oc->interrupt_callback,
    2545             :                               &of->opts)) < 0) {
    2546           0 :             print_error(filename, err);
    2547           0 :             exit_program(1);
    2548             :         }
    2549          41 :     } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
    2550           0 :         assert_file_overwrite(filename);
    2551             : 
    2552        5176 :     if (o->mux_preload) {
    2553           0 :         av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
    2554             :     }
    2555        5176 :     oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
    2556             : 
    2557             :     /* copy metadata */
    2558        5181 :     for (i = 0; i < o->nb_metadata_map; i++) {
    2559             :         char *p;
    2560           5 :         int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
    2561             : 
    2562           5 :         if (in_file_index >= nb_input_files) {
    2563           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
    2564           0 :             exit_program(1);
    2565             :         }
    2566           8 :         copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
    2567             :                       in_file_index >= 0 ?
    2568           3 :                       input_files[in_file_index]->ctx : NULL, o);
    2569             :     }
    2570             : 
    2571             :     /* copy chapters */
    2572        5176 :     if (o->chapters_input_file >= nb_input_files) {
    2573        5176 :         if (o->chapters_input_file == INT_MAX) {
    2574             :             /* copy chapters from the first input file that has them*/
    2575        5176 :             o->chapters_input_file = -1;
    2576       10400 :             for (i = 0; i < nb_input_files; i++)
    2577        5234 :                 if (input_files[i]->ctx->nb_chapters) {
    2578          10 :                     o->chapters_input_file = i;
    2579          10 :                     break;
    2580             :                 }
    2581             :         } else {
    2582           0 :             av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
    2583             :                    o->chapters_input_file);
    2584           0 :             exit_program(1);
    2585             :         }
    2586             :     }
    2587        5176 :     if (o->chapters_input_file >= 0)
    2588          10 :         copy_chapters(input_files[o->chapters_input_file], of,
    2589          10 :                       !o->metadata_chapters_manual);
    2590             : 
    2591             :     /* copy global metadata by default */
    2592        5176 :     if (!o->metadata_global_manual && nb_input_files){
    2593        5163 :         av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
    2594             :                      AV_DICT_DONT_OVERWRITE);
    2595        5163 :         if(o->recording_time != INT64_MAX)
    2596         109 :             av_dict_set(&oc->metadata, "duration", NULL, 0);
    2597        5163 :         av_dict_set(&oc->metadata, "creation_time", NULL, 0);
    2598             :     }
    2599        5176 :     if (!o->metadata_streams_manual)
    2600       10480 :         for (i = of->ost_index; i < nb_output_streams; i++) {
    2601             :             InputStream *ist;
    2602        5305 :             if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
    2603          48 :                 continue;
    2604        5257 :             ist = input_streams[output_streams[i]->source_index];
    2605        5257 :             av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
    2606        5257 :             if (!output_streams[i]->stream_copy) {
    2607        5076 :                 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
    2608             :             }
    2609             :         }
    2610             : 
    2611             :     /* process manually set programs */
    2612        5176 :     for (i = 0; i < o->nb_program; i++) {
    2613           0 :         const char *p = o->program[i].u.str;
    2614           0 :         int progid = i+1;
    2615             :         AVProgram *program;
    2616             : 
    2617           0 :         while(*p) {
    2618           0 :             const char *p2 = av_get_token(&p, ":");
    2619           0 :             const char *to_dealloc = p2;
    2620             :             char *key;
    2621           0 :             if (!p2)
    2622           0 :                 break;
    2623             : 
    2624           0 :             if(*p) p++;
    2625             : 
    2626           0 :             key = av_get_token(&p2, "=");
    2627           0 :             if (!key || !*p2) {
    2628           0 :                 av_freep(&to_dealloc);
    2629           0 :                 av_freep(&key);
    2630           0 :                 break;
    2631             :             }
    2632           0 :             p2++;
    2633             : 
    2634           0 :             if (!strcmp(key, "program_num"))
    2635           0 :                 progid = strtol(p2, NULL, 0);
    2636           0 :             av_freep(&to_dealloc);
    2637           0 :             av_freep(&key);
    2638             :         }
    2639             : 
    2640           0 :         program = av_new_program(oc, progid);
    2641             : 
    2642           0 :         p = o->program[i].u.str;
    2643           0 :         while(*p) {
    2644           0 :             const char *p2 = av_get_token(&p, ":");
    2645           0 :             const char *to_dealloc = p2;
    2646             :             char *key;
    2647           0 :             if (!p2)
    2648           0 :                 break;
    2649           0 :             if(*p) p++;
    2650             : 
    2651           0 :             key = av_get_token(&p2, "=");
    2652           0 :             if (!key) {
    2653           0 :                 av_log(NULL, AV_LOG_FATAL,
    2654             :                        "No '=' character in program string %s.\n",
    2655             :                        p2);
    2656           0 :                 exit_program(1);
    2657             :             }
    2658           0 :             if (!*p2)
    2659           0 :                 exit_program(1);
    2660           0 :             p2++;
    2661             : 
    2662           0 :             if (!strcmp(key, "title")) {
    2663           0 :                 av_dict_set(&program->metadata, "title", p2, 0);
    2664           0 :             } else if (!strcmp(key, "program_num")) {
    2665           0 :             } else if (!strcmp(key, "st")) {
    2666           0 :                 int st_num = strtol(p2, NULL, 0);
    2667           0 :                 av_program_add_stream_index(oc, progid, st_num);
    2668             :             } else {
    2669           0 :                 av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
    2670           0 :                 exit_program(1);
    2671             :             }
    2672           0 :             av_freep(&to_dealloc);
    2673           0 :             av_freep(&key);
    2674             :         }
    2675             :     }
    2676             : 
    2677             :     /* process manually set metadata */
    2678        5336 :     for (i = 0; i < o->nb_metadata; i++) {
    2679             :         AVDictionary **m;
    2680             :         char type, *val;
    2681             :         const char *stream_spec;
    2682         160 :         int index = 0, j, ret = 0;
    2683             : 
    2684         160 :         val = strchr(o->metadata[i].u.str, '=');
    2685         160 :         if (!val) {
    2686           0 :             av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
    2687           0 :                    o->metadata[i].u.str);
    2688           0 :             exit_program(1);
    2689             :         }
    2690         160 :         *val++ = 0;
    2691             : 
    2692         160 :         parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
    2693         160 :         if (type == 's') {
    2694           7 :             for (j = 0; j < oc->nb_streams; j++) {
    2695           5 :                 ost = output_streams[nb_output_streams - oc->nb_streams + j];
    2696           5 :                 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
    2697           2 :                     if (!strcmp(o->metadata[i].u.str, "rotate")) {
    2698             :                         char *tail;
    2699           1 :                         double theta = av_strtod(val, &tail);
    2700           1 :                         if (!*tail) {
    2701           1 :                             ost->rotate_overridden = 1;
    2702           1 :                             ost->rotate_override_value = theta;
    2703             :                         }
    2704             :                     } else {
    2705           1 :                         av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
    2706             :                     }
    2707           3 :                 } else if (ret < 0)
    2708           0 :                     exit_program(1);
    2709             :             }
    2710             :         }
    2711             :         else {
    2712         158 :             switch (type) {
    2713         158 :             case 'g':
    2714         158 :                 m = &oc->metadata;
    2715         158 :                 break;
    2716           0 :             case 'c':
    2717           0 :                 if (index < 0 || index >= oc->nb_chapters) {
    2718           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
    2719           0 :                     exit_program(1);
    2720             :                 }
    2721           0 :                 m = &oc->chapters[index]->metadata;
    2722           0 :                 break;
    2723           0 :             case 'p':
    2724           0 :                 if (index < 0 || index >= oc->nb_programs) {
    2725           0 :                     av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
    2726           0 :                     exit_program(1);
    2727             :                 }
    2728           0 :                 m = &oc->programs[index]->metadata;
    2729           0 :                 break;
    2730           0 :             default:
    2731           0 :                 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
    2732           0 :                 exit_program(1);
    2733             :             }
    2734         158 :             av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
    2735             :         }
    2736             :     }
    2737             : 
    2738        5176 :     return 0;
    2739             : }
    2740             : 
    2741           0 : static int opt_target(void *optctx, const char *opt, const char *arg)
    2742             : {
    2743           0 :     OptionsContext *o = optctx;
    2744           0 :     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
    2745             :     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
    2746             : 
    2747           0 :     if (!strncmp(arg, "pal-", 4)) {
    2748           0 :         norm = PAL;
    2749           0 :         arg += 4;
    2750           0 :     } else if (!strncmp(arg, "ntsc-", 5)) {
    2751           0 :         norm = NTSC;
    2752           0 :         arg += 5;
    2753           0 :     } else if (!strncmp(arg, "film-", 5)) {
    2754           0 :         norm = FILM;
    2755           0 :         arg += 5;
    2756             :     } else {
    2757             :         /* Try to determine PAL/NTSC by peeking in the input files */
    2758           0 :         if (nb_input_files) {
    2759             :             int i, j, fr;
    2760           0 :             for (j = 0; j < nb_input_files; j++) {
    2761           0 :                 for (i = 0; i < input_files[j]->nb_streams; i++) {
    2762           0 :                     AVStream *st = input_files[j]->ctx->streams[i];
    2763           0 :                     if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
    2764           0 :                         continue;
    2765           0 :                     fr = st->time_base.den * 1000 / st->time_base.num;
    2766           0 :                     if (fr == 25000) {
    2767           0 :                         norm = PAL;
    2768           0 :                         break;
    2769           0 :                     } else if ((fr == 29970) || (fr == 23976)) {
    2770           0 :                         norm = NTSC;
    2771           0 :                         break;
    2772             :                     }
    2773             :                 }
    2774           0 :                 if (norm != UNKNOWN)
    2775           0 :                     break;
    2776             :             }
    2777             :         }
    2778           0 :         if (norm != UNKNOWN)
    2779           0 :             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
    2780             :     }
    2781             : 
    2782           0 :     if (norm == UNKNOWN) {
    2783           0 :         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
    2784           0 :         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
    2785           0 :         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
    2786           0 :         exit_program(1);
    2787             :     }
    2788             : 
    2789           0 :     if (!strcmp(arg, "vcd")) {
    2790           0 :         opt_video_codec(o, "c:v", "mpeg1video");
    2791           0 :         opt_audio_codec(o, "c:a", "mp2");
    2792           0 :         parse_option(o, "f", "vcd", options);
    2793             : 
    2794           0 :         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
    2795           0 :         parse_option(o, "r", frame_rates[norm], options);
    2796           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2797             : 
    2798           0 :         opt_default(NULL, "b:v", "1150000");
    2799           0 :         opt_default(NULL, "maxrate:v", "1150000");
    2800           0 :         opt_default(NULL, "minrate:v", "1150000");
    2801           0 :         opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
    2802             : 
    2803           0 :         opt_default(NULL, "b:a", "224000");
    2804           0 :         parse_option(o, "ar", "44100", options);
    2805           0 :         parse_option(o, "ac", "2", options);
    2806             : 
    2807           0 :         opt_default(NULL, "packetsize", "2324");
    2808           0 :         opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
    2809             : 
    2810             :         /* We have to offset the PTS, so that it is consistent with the SCR.
    2811             :            SCR starts at 36000, but the first two packs contain only padding
    2812             :            and the first pack from the other stream, respectively, may also have
    2813             :            been written before.
    2814             :            So the real data starts at SCR 36000+3*1200. */
    2815           0 :         o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
    2816           0 :     } else if (!strcmp(arg, "svcd")) {
    2817             : 
    2818           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2819           0 :         opt_audio_codec(o, "c:a", "mp2");
    2820           0 :         parse_option(o, "f", "svcd", options);
    2821             : 
    2822           0 :         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
    2823           0 :         parse_option(o, "r", frame_rates[norm], options);
    2824           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2825           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2826             : 
    2827           0 :         opt_default(NULL, "b:v", "2040000");
    2828           0 :         opt_default(NULL, "maxrate:v", "2516000");
    2829           0 :         opt_default(NULL, "minrate:v", "0"); // 1145000;
    2830           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2831           0 :         opt_default(NULL, "scan_offset", "1");
    2832             : 
    2833           0 :         opt_default(NULL, "b:a", "224000");
    2834           0 :         parse_option(o, "ar", "44100", options);
    2835             : 
    2836           0 :         opt_default(NULL, "packetsize", "2324");
    2837             : 
    2838           0 :     } else if (!strcmp(arg, "dvd")) {
    2839             : 
    2840           0 :         opt_video_codec(o, "c:v", "mpeg2video");
    2841           0 :         opt_audio_codec(o, "c:a", "ac3");
    2842           0 :         parse_option(o, "f", "dvd", options);
    2843             : 
    2844           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2845           0 :         parse_option(o, "r", frame_rates[norm], options);
    2846           0 :         parse_option(o, "pix_fmt", "yuv420p", options);
    2847           0 :         opt_default(NULL, "g", norm == PAL ? "15" : "18");
    2848             : 
    2849           0 :         opt_default(NULL, "b:v", "6000000");
    2850           0 :         opt_default(NULL, "maxrate:v", "9000000");
    2851           0 :         opt_default(NULL, "minrate:v", "0"); // 1500000;
    2852           0 :         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
    2853             : 
    2854           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.
    2855           0 :         opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
    2856             : 
    2857           0 :         opt_default(NULL, "b:a", "448000");
    2858           0 :         parse_option(o, "ar", "48000", options);
    2859             : 
    2860           0 :     } else if (!strncmp(arg, "dv", 2)) {
    2861             : 
    2862           0 :         parse_option(o, "f", "dv", options);
    2863             : 
    2864           0 :         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
    2865           0 :         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
    2866           0 :                           norm == PAL ? "yuv420p" : "yuv411p", options);
    2867           0 :         parse_option(o, "r", frame_rates[norm], options);
    2868             : 
    2869           0 :         parse_option(o, "ar", "48000", options);
    2870           0 :         parse_option(o, "ac", "2", options);
    2871             : 
    2872             :     } else {
    2873           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
    2874           0 :         return AVERROR(EINVAL);
    2875             :     }
    2876             : 
    2877           0 :     av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
    2878           0 :     av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
    2879             : 
    2880           0 :     return 0;
    2881             : }
    2882             : 
    2883           0 : static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
    2884             : {
    2885           0 :     av_free (vstats_filename);
    2886           0 :     vstats_filename = av_strdup (arg);
    2887           0 :     return 0;
    2888             : }
    2889             : 
    2890           0 : static int opt_vstats(void *optctx, const char *opt, const char *arg)
    2891             : {
    2892             :     char filename[40];
    2893           0 :     time_t today2 = time(NULL);
    2894           0 :     struct tm *today = localtime(&today2);
    2895             : 
    2896           0 :     if (!today) { // maybe tomorrow
    2897           0 :         av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
    2898           0 :         exit_program(1);
    2899             :     }
    2900             : 
    2901           0 :     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
    2902             :              today->tm_sec);
    2903           0 :     return opt_vstats_file(NULL, opt, filename);
    2904             : }
    2905             : 
    2906           0 : static int opt_video_frames(void *optctx, const char *opt, const char *arg)
    2907             : {
    2908           0 :     OptionsContext *o = optctx;
    2909           0 :     return parse_option(o, "frames:v", arg, options);
    2910             : }
    2911             : 
    2912           0 : static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
    2913             : {
    2914           0 :     OptionsContext *o = optctx;
    2915           0 :     return parse_option(o, "frames:a", arg, options);
    2916             : }
    2917             : 
    2918           0 : static int opt_data_frames(void *optctx, const char *opt, const char *arg)
    2919             : {
    2920           0 :     OptionsContext *o = optctx;
    2921           0 :     return parse_option(o, "frames:d", arg, options);
    2922             : }
    2923             : 
    2924           2 : static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
    2925             : {
    2926             :     int ret;
    2927           2 :     AVDictionary *cbak = codec_opts;
    2928           2 :     AVDictionary *fbak = format_opts;
    2929           2 :     codec_opts = NULL;
    2930           2 :     format_opts = NULL;
    2931             : 
    2932           2 :     ret = opt_default(NULL, opt, arg);
    2933             : 
    2934           2 :     av_dict_copy(&o->g->codec_opts , codec_opts, 0);
    2935           2 :     av_dict_copy(&o->g->format_opts, format_opts, 0);
    2936           2 :     av_dict_free(&codec_opts);
    2937           2 :     av_dict_free(&format_opts);
    2938           2 :     codec_opts = cbak;
    2939           2 :     format_opts = fbak;
    2940             : 
    2941           2 :     return ret;
    2942             : }
    2943             : 
    2944           0 : static int opt_preset(void *optctx, const char *opt, const char *arg)
    2945             : {
    2946           0 :     OptionsContext *o = optctx;
    2947           0 :     FILE *f=NULL;
    2948             :     char filename[1000], line[1000], tmp_line[1000];
    2949           0 :     const char *codec_name = NULL;
    2950             : 
    2951           0 :     tmp_line[0] = *opt;
    2952           0 :     tmp_line[1] = 0;
    2953           0 :     MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
    2954             : 
    2955           0 :     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
    2956           0 :         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
    2957           0 :             av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
    2958             :         }else
    2959           0 :             av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
    2960           0 :         exit_program(1);
    2961             :     }
    2962             : 
    2963           0 :     while (fgets(line, sizeof(line), f)) {
    2964           0 :         char *key = tmp_line, *value, *endptr;
    2965             : 
    2966           0 :         if (strcspn(line, "#\n\r") == 0)
    2967           0 :             continue;
    2968           0 :         av_strlcpy(tmp_line, line, sizeof(tmp_line));
    2969           0 :         if (!av_strtok(key,   "=",    &value) ||
    2970           0 :             !av_strtok(value, "\r\n", &endptr)) {
    2971           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
    2972           0 :             exit_program(1);
    2973             :         }
    2974           0 :         av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
    2975             : 
    2976           0 :         if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
    2977           0 :         else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
    2978           0 :         else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
    2979           0 :         else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
    2980           0 :         else if (opt_default_new(o, key, value) < 0) {
    2981           0 :             av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
    2982             :                    filename, line, key, value);
    2983           0 :             exit_program(1);
    2984             :         }
    2985             :     }
    2986             : 
    2987           0 :     fclose(f);
    2988             : 
    2989           0 :     return 0;
    2990             : }
    2991             : 
    2992           3 : static int opt_old2new(void *optctx, const char *opt, const char *arg)
    2993             : {
    2994           3 :     OptionsContext *o = optctx;
    2995           3 :     char *s = av_asprintf("%s:%c", opt + 1, *opt);
    2996           3 :     int ret = parse_option(o, s, arg, options);
    2997           3 :     av_free(s);
    2998           3 :     return ret;
    2999             : }
    3000             : 
    3001         160 : static int opt_bitrate(void *optctx, const char *opt, const char *arg)
    3002             : {
    3003         160 :     OptionsContext *o = optctx;
    3004             : 
    3005         160 :     if(!strcmp(opt, "ab")){
    3006          11 :         av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
    3007          11 :         return 0;
    3008         149 :     } else if(!strcmp(opt, "b")){
    3009          37 :         av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
    3010          37 :         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
    3011          37 :         return 0;
    3012             :     }
    3013         112 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    3014         112 :     return 0;
    3015             : }
    3016             : 
    3017         245 : static int opt_qscale(void *optctx, const char *opt, const char *arg)
    3018             : {
    3019         245 :     OptionsContext *o = optctx;
    3020             :     char *s;
    3021             :     int ret;
    3022         245 :     if(!strcmp(opt, "qscale")){
    3023         208 :         av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
    3024         208 :         return parse_option(o, "q:v", arg, options);
    3025             :     }
    3026          37 :     s = av_asprintf("q%s", opt + 6);
    3027          37 :     ret = parse_option(o, s, arg, options);
    3028          37 :     av_free(s);
    3029          37 :     return ret;
    3030             : }
    3031             : 
    3032          46 : static int opt_profile(void *optctx, const char *opt, const char *arg)
    3033             : {
    3034          46 :     OptionsContext *o = optctx;
    3035          46 :     if(!strcmp(opt, "profile")){
    3036           4 :         av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
    3037           4 :         av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
    3038           4 :         return 0;
    3039             :     }
    3040          42 :     av_dict_set(&o->g->codec_opts, opt, arg, 0);
    3041          42 :     return 0;
    3042             : }
    3043             : 
    3044        1778 : static int opt_video_filters(void *optctx, const char *opt, const char *arg)
    3045             : {
    3046        1778 :     OptionsContext *o = optctx;
    3047        1778 :     return parse_option(o, "filter:v", arg, options);
    3048             : }
    3049             : 
    3050         376 : static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
    3051             : {
    3052         376 :     OptionsContext *o = optctx;
    3053         376 :     return parse_option(o, "filter:a", arg, options);
    3054             : }
    3055             : 
    3056         773 : static int opt_vsync(void *optctx, const char *opt, const char *arg)
    3057             : {
    3058         773 :     if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
    3059         769 :     else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
    3060         768 :     else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
    3061         767 :     else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
    3062             : 
    3063         773 :     if (video_sync_method == VSYNC_AUTO)
    3064         446 :         video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
    3065         773 :     return 0;
    3066             : }
    3067             : 
    3068          14 : static int opt_timecode(void *optctx, const char *opt, const char *arg)
    3069             : {
    3070          14 :     OptionsContext *o = optctx;
    3071          14 :     char *tcr = av_asprintf("timecode=%s", arg);
    3072          14 :     int ret = parse_option(o, "metadata:g", tcr, options);
    3073          14 :     if (ret >= 0)
    3074          14 :         ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
    3075          14 :     av_free(tcr);
    3076          14 :     return ret;
    3077             : }
    3078             : 
    3079           2 : static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
    3080             : {
    3081           2 :     OptionsContext *o = optctx;
    3082             :     char layout_str[32];
    3083             :     char *stream_str;
    3084             :     char *ac_str;
    3085             :     int ret, channels, ac_str_size;
    3086             :     uint64_t layout;
    3087             : 
    3088           2 :     layout = av_get_channel_layout(arg);
    3089           2 :     if (!layout) {
    3090           0 :         av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
    3091           0 :         return AVERROR(EINVAL);
    3092             :     }
    3093           2 :     snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
    3094           2 :     ret = opt_default_new(o, opt, layout_str);
    3095           2 :     if (ret < 0)
    3096           0 :         return ret;
    3097             : 
    3098             :     /* set 'ac' option based on channel layout */
    3099           2 :     channels = av_get_channel_layout_nb_channels(layout);
    3100           2 :     snprintf(layout_str, sizeof(layout_str), "%d", channels);
    3101           2 :     stream_str = strchr(opt, ':');
    3102           2 :     ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
    3103           2 :     ac_str = av_mallocz(ac_str_size);
    3104           2 :     if (!ac_str)
    3105           0 :         return AVERROR(ENOMEM);
    3106           2 :     av_strlcpy(ac_str, "ac", 3);
    3107           2 :     if (stream_str)
    3108           0 :         av_strlcat(ac_str, stream_str, ac_str_size);
    3109           2 :     ret = parse_option(o, ac_str, layout_str, options);
    3110           2 :     av_free(ac_str);
    3111             : 
    3112           2 :     return ret;
    3113             : }
    3114             : 
    3115           0 : static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
    3116             : {
    3117           0 :     OptionsContext *o = optctx;
    3118           0 :     return parse_option(o, "q:a", arg, options);
    3119             : }
    3120             : 
    3121          24 : static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
    3122             : {
    3123          24 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3124          24 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3125           0 :         return AVERROR(ENOMEM);
    3126          24 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3127          24 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
    3128          24 :     if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
    3129           0 :         return AVERROR(ENOMEM);
    3130             : 
    3131          24 :     input_stream_potentially_available = 1;
    3132             : 
    3133          24 :     return 0;
    3134             : }
    3135             : 
    3136          21 : static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
    3137             : {
    3138          21 :     uint8_t *graph_desc = read_file(arg);
    3139          21 :     if (!graph_desc)
    3140           0 :         return AVERROR(EINVAL);
    3141             : 
    3142          21 :     GROW_ARRAY(filtergraphs, nb_filtergraphs);
    3143          21 :     if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
    3144           0 :         return AVERROR(ENOMEM);
    3145          21 :     filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
    3146          21 :     filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
    3147             : 
    3148          21 :     input_stream_potentially_available = 1;
    3149             : 
    3150          21 :     return 0;
    3151             : }
    3152             : 
    3153           0 : void show_help_default(const char *opt, const char *arg)
    3154             : {
    3155             :     /* per-file options have at least one of those set */
    3156           0 :     const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
    3157           0 :     int show_advanced = 0, show_avoptions = 0;
    3158             : 
    3159           0 :     if (opt && *opt) {
    3160           0 :         if (!strcmp(opt, "long"))
    3161           0 :             show_advanced = 1;
    3162           0 :         else if (!strcmp(opt, "full"))
    3163           0 :             show_advanced = show_avoptions = 1;
    3164             :         else
    3165           0 :             av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
    3166             :     }
    3167             : 
    3168           0 :     show_usage();
    3169             : 
    3170           0 :     printf("Getting help:\n"
    3171             :            "    -h      -- print basic options\n"
    3172             :            "    -h long -- print more options\n"
    3173             :            "    -h full -- print all options (including all format and codec specific options, very long)\n"
    3174             :            "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
    3175             :            "    See man %s for detailed description of the options.\n"
    3176             :            "\n", program_name);
    3177             : 
    3178           0 :     show_help_options(options, "Print help / information / capabilities:",
    3179             :                       OPT_EXIT, 0, 0);
    3180             : 
    3181           0 :     show_help_options(options, "Global options (affect whole program "
    3182             :                       "instead of just one file:",
    3183             :                       0, per_file | OPT_EXIT | OPT_EXPERT, 0);
    3184           0 :     if (show_advanced)
    3185           0 :         show_help_options(options, "Advanced global options:", OPT_EXPERT,
    3186             :                           per_file | OPT_EXIT, 0);
    3187             : 
    3188           0 :     show_help_options(options, "Per-file main options:", 0,
    3189             :                       OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
    3190             :                       OPT_EXIT, per_file);
    3191           0 :     if (show_advanced)
    3192           0 :         show_help_options(options, "Advanced per-file options:",
    3193             :                           OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
    3194             : 
    3195           0 :     show_help_options(options, "Video options:",
    3196             :                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
    3197           0 :     if (show_advanced)
    3198           0 :         show_help_options(options, "Advanced Video options:",
    3199             :                           OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
    3200             : 
    3201           0 :     show_help_options(options, "Audio options:",
    3202             :                       OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
    3203           0 :     if (show_advanced)
    3204           0 :         show_help_options(options, "Advanced Audio options:",
    3205             :                           OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
    3206           0 :     show_help_options(options, "Subtitle options:",
    3207             :                       OPT_SUBTITLE, 0, 0);
    3208           0 :     printf("\n");
    3209             : 
    3210           0 :     if (show_avoptions) {
    3211           0 :         int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
    3212           0 :         show_help_children(avcodec_get_class(), flags);
    3213           0 :         show_help_children(avformat_get_class(), flags);
    3214             : #if CONFIG_SWSCALE
    3215           0 :         show_help_children(sws_get_class(), flags);
    3216             : #endif
    3217           0 :         show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
    3218           0 :         show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
    3219             :     }
    3220           0 : }
    3221             : 
    3222           0 : void show_usage(void)
    3223             : {
    3224           0 :     av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
    3225           0 :     av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
    3226           0 :     av_log(NULL, AV_LOG_INFO, "\n");
    3227           0 : }
    3228             : 
    3229             : enum OptGroup {
    3230             :     GROUP_OUTFILE,
    3231             :     GROUP_INFILE,
    3232             : };
    3233             : 
    3234             : static const OptionGroupDef groups[] = {
    3235             :     [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
    3236             :     [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
    3237             : };
    3238             : 
    3239       10350 : static int open_files(OptionGroupList *l, const char *inout,
    3240             :                       int (*open_file)(OptionsContext*, const char*))
    3241             : {
    3242             :     int i, ret;
    3243             : 
    3244       41518 :     for (i = 0; i < l->nb_groups; i++) {
    3245       10409 :         OptionGroup *g = &l->groups[i];
    3246             :         OptionsContext o;
    3247             : 
    3248       10409 :         init_options(&o);
    3249       10409 :         o.g = g;
    3250             : 
    3251       10409 :         ret = parse_optgroup(&o, g);
    3252       10409 :         if (ret < 0) {
    3253           0 :             av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
    3254             :                    "%s.\n", inout, g->arg);
    3255           0 :             return ret;
    3256             :         }
    3257             : 
    3258       10409 :         av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
    3259       10409 :         ret = open_file(&o, g->arg);
    3260       10409 :         uninit_options(&o);
    3261       10409 :         if (ret < 0) {
    3262           0 :             av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
    3263             :                    inout, g->arg);
    3264           0 :             return ret;
    3265             :         }
    3266       10409 :         av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
    3267             :     }
    3268             : 
    3269       10350 :     return 0;
    3270             : }
    3271             : 
    3272        5176 : int ffmpeg_parse_options(int argc, char **argv)
    3273             : {
    3274             :     OptionParseContext octx;
    3275             :     uint8_t error[128];
    3276             :     int ret;
    3277             : 
    3278        5176 :     memset(&octx, 0, sizeof(octx));
    3279             : 
    3280             :     /* split the commandline into an internal representation */
    3281        5176 :     ret = split_commandline(&octx, argc, argv, options, groups,
    3282             :                             FF_ARRAY_ELEMS(groups));
    3283        5176 :     if (ret < 0) {
    3284           0 :         av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
    3285           0 :         goto fail;
    3286             :     }
    3287             : 
    3288             :     /* apply global options */
    3289        5176 :     ret = parse_optgroup(NULL, &octx.global_opts);
    3290        5175 :     if (ret < 0) {
    3291           0 :         av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
    3292           0 :         goto fail;
    3293             :     }
    3294             : 
    3295             :     /* configure terminal and setup signal handlers */
    3296        5175 :     term_init();
    3297             : 
    3298             :     /* open input files */
    3299        5175 :     ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
    3300        5175 :     if (ret < 0) {
    3301           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
    3302           0 :         goto fail;
    3303             :     }
    3304             : 
    3305             :     /* create the complex filtergraphs */
    3306        5175 :     ret = init_complex_filters();
    3307        5175 :     if (ret < 0) {
    3308           0 :         av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
    3309           0 :         goto fail;
    3310             :     }
    3311             : 
    3312             :     /* open output files */
    3313        5175 :     ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
    3314        5175 :     if (ret < 0) {
    3315           0 :         av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
    3316           0 :         goto fail;
    3317             :     }
    3318             : 
    3319        5175 :     check_filter_outputs();
    3320             : 
    3321        5175 : fail:
    3322        5175 :     uninit_parse_context(&octx);
    3323        5175 :     if (ret < 0) {
    3324           0 :         av_strerror(ret, error, sizeof(error));
    3325           0 :         av_log(NULL, AV_LOG_FATAL, "%s\n", error);
    3326             :     }
    3327        5175 :     return ret;
    3328             : }
    3329             : 
    3330           0 : static int opt_progress(void *optctx, const char *opt, const char *arg)
    3331             : {
    3332           0 :     AVIOContext *avio = NULL;
    3333             :     int ret;
    3334             : 
    3335           0 :     if (!strcmp(arg, "-"))
    3336           0 :         arg = "pipe:";
    3337           0 :     ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
    3338           0 :     if (ret < 0) {
    3339           0 :         av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
    3340           0 :                arg, av_err2str(ret));
    3341           0 :         return ret;
    3342             :     }
    3343           0 :     progress_avio = avio;
    3344           0 :     return 0;
    3345             : }
    3346             : 
    3347             : #define OFFSET(x) offsetof(OptionsContext, x)
    3348             : const OptionDef options[] = {
    3349             :     /* main options */
    3350             :     CMDUTILS_COMMON_OPTIONS
    3351             :     { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
    3352             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
    3353             :         "force format", "fmt" },
    3354             :     { "y",              OPT_BOOL,                                    {              &file_overwrite },
    3355             :         "overwrite output files" },
    3356             :     { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
    3357             :         "never overwrite output files" },
    3358             :     { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
    3359             :         "Ignore unknown stream types" },
    3360             :     { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
    3361             :         "Copy unknown stream types" },
    3362             :     { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
    3363             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3364             :         "codec name", "codec" },
    3365             :     { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
    3366             :                         OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
    3367             :         "codec name", "codec" },
    3368             :     { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
    3369             :                         OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
    3370             :         "preset name", "preset" },
    3371             :     { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3372             :                         OPT_OUTPUT,                                  { .func_arg = opt_map },
    3373             :         "set input stream mapping",
    3374             :         "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
    3375             :     { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
    3376             :         "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
    3377             :     { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
    3378             :                         OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
    3379             :         "set metadata information of outfile from infile",
    3380             :         "outfile[,metadata]:infile[,metadata]" },
    3381             :     { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
    3382             :                         OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
    3383             :         "set chapters mapping", "input_file_index" },
    3384             :     { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
    3385             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
    3386             :         "record or transcode \"duration\" seconds of audio/video",
    3387             :         "duration" },
    3388             :     { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
    3389             :         "record or transcode stop time", "time_stop" },
    3390             :     { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
    3391             :         "set the limit file size in bytes", "limit_size" },
    3392             :     { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
    3393             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
    3394             :         "set the start time offset", "time_off" },
    3395             :     { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
    3396             :                         OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time_eof) },
    3397             :         "set the start time offset relative to EOF", "time_off" },
    3398             :     { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
    3399             :                         OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
    3400             :         "enable/disable seeking by timestamp with -ss" },
    3401             :     { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
    3402             :                         OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
    3403             :         "enable/disable accurate seeking with -ss" },
    3404             :     { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
    3405             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
    3406             :         "set the input ts offset", "time_off" },
    3407             :     { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
    3408             :                         OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
    3409             :         "set the input ts scale", "scale" },
    3410             :     { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
    3411             :         "set the recording timestamp ('now' to set the current time)", "time" },
    3412             :     { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
    3413             :         "add metadata", "string=string" },
    3414             :     { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
    3415             :         "add program with specified streams", "title=string:st=number..." },
    3416             :     { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3417             :                         OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
    3418             :         "set the number of data frames to output", "number" },
    3419             :     { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
    3420             :         "add timings for benchmarking" },
    3421             :     { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
    3422             :       "add timings for each task" },
    3423             :     { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
    3424             :       "write program-readable progress information", "url" },
    3425             :     { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
    3426             :       "enable or disable interaction on standard input" },
    3427             :     { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
    3428             :         "set max runtime in seconds", "limit" },
    3429             :     { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
    3430             :         "dump each input packet" },
    3431             :     { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
    3432             :         "when dumping packets, also dump the payload" },
    3433             :     { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3434             :                         OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
    3435             :         "read input at native frame rate", "" },
    3436             :     { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
    3437             :         "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
    3438             :         "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
    3439             :     { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
    3440             :         "video sync method", "" },
    3441             :     { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
    3442             :         "frame drop threshold", "" },
    3443             :     { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
    3444             :         "audio sync method", "" },
    3445             :     { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
    3446             :         "audio drift threshold", "threshold" },
    3447             :     { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
    3448             :         "copy timestamps" },
    3449             :     { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
    3450             :         "shift input timestamps to start at 0 when using copyts" },
    3451             :     { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
    3452             :         "copy input stream time base when stream copying", "mode" },
    3453             :     { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
    3454             :                         OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
    3455             :         "finish encoding within shortest input" },
    3456             :     { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
    3457             :                         OPT_OUTPUT,                                  { .off = OFFSET(apad) },
    3458             :         "audio pad", "" },
    3459             :     { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
    3460             :         "timestamp discontinuity delta threshold", "threshold" },
    3461             :     { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
    3462             :         "timestamp error delta threshold", "threshold" },
    3463             :     { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
    3464             :         "exit on error", "error" },
    3465             :     { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
    3466             :         "abort on the specified condition flags", "flags" },
    3467             :     { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
    3468             :                         OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
    3469             :         "copy initial non-keyframes" },
    3470             :     { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
    3471             :         "copy or discard frames before start time" },
    3472             :     { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
    3473             :         "set the number of frames to output", "number" },
    3474             :     { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
    3475             :                         OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
    3476             :         "force codec tag/fourcc", "fourcc/tag" },
    3477             :     { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
    3478             :                         OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
    3479             :         "use fixed quality scale (VBR)", "q" },
    3480             :     { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3481             :                         OPT_OUTPUT,                                  { .func_arg = opt_qscale },
    3482             :         "use fixed quality scale (VBR)", "q" },
    3483             :     { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
    3484             :         "set profile", "profile" },
    3485             :     { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
    3486             :         "set stream filtergraph", "filter_graph" },
    3487             :     { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
    3488             :         "number of non-complex filter threads" },
    3489             :     { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
    3490             :         "read stream filtergraph description from a file", "filename" },
    3491             :     { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
    3492             :         "reinit filtergraph on input parameter changes", "" },
    3493             :     { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3494             :         "create a complex filtergraph", "graph_description" },
    3495             :     { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
    3496             :         "number of threads for -filter_complex" },
    3497             :     { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
    3498             :         "create a complex filtergraph", "graph_description" },
    3499             :     { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
    3500             :         "read complex filtergraph description from a file", "filename" },
    3501             :     { "stats",          OPT_BOOL,                                    { &print_stats },
    3502             :         "print progress report during encoding", },
    3503             :     { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
    3504             :                         OPT_OUTPUT,                                  { .func_arg = opt_attach },
    3505             :         "add an attachment to the output file", "filename" },
    3506             :     { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
    3507             :                          OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
    3508             :         "extract an attachment into a file", "filename" },
    3509             :     { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
    3510             :                         OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
    3511             :     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
    3512             :         "print timestamp debugging info" },
    3513             :     { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
    3514             :         "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
    3515             :     { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
    3516             :                         OPT_INPUT,                                   { .off = OFFSET(discard) },
    3517             :         "discard", "" },
    3518             :     { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
    3519             :                         OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
    3520             :         "disposition", "" },
    3521             :     { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
    3522             :                                                                      { .off = OFFSET(thread_queue_size) },
    3523             :         "set the maximum number of queued packets from the demuxer" },
    3524             :     { "find_stream_info", OPT_BOOL | OPT_PERFILE | OPT_INPUT | OPT_EXPERT, { &find_stream_info },
    3525             :         "read and decode the streams to fill missing information with heuristics" },
    3526             : 
    3527             :     /* video options */
    3528             :     { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
    3529             :         "set the number of video frames to output", "number" },
    3530             :     { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3531             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
    3532             :         "set frame rate (Hz value, fraction or abbreviation)", "rate" },
    3533             :     { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
    3534             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
    3535             :         "set frame size (WxH or abbreviation)", "size" },
    3536             :     { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
    3537             :                       OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
    3538             :         "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
    3539             :     { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3540             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
    3541             :         "set pixel format", "format" },
    3542             :     { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
    3543             :         "set the number of bits per raw sample", "number" },
    3544             :     { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
    3545             :         "deprecated use -g 1" },
    3546             :     { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
    3547             :         "disable video" },
    3548             :     { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3549             :                       OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
    3550             :         "rate control override for specific intervals", "override" },
    3551             :     { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
    3552             :                       OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
    3553             :         "force video codec ('copy' to copy stream)", "codec" },
    3554             :     { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3555             :         "Removed" },
    3556             :     { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
    3557             :         "Removed" },
    3558             :     { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
    3559             :         "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
    3560             :     { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
    3561             :         "select the pass number (1 to 3)", "n" },
    3562             :     { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
    3563             :                       OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
    3564             :         "select two pass log file name prefix", "prefix" },
    3565             :     { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
    3566             :         "this option is deprecated, use the yadif filter instead" },
    3567             :     { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
    3568             :         "calculate PSNR of compressed frames" },
    3569             :     { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
    3570             :         "dump video coding statistics to file" },
    3571             :     { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
    3572             :         "dump video coding statistics to file", "file" },
    3573             :     { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
    3574             :         "Version of the vstats format to use."},
    3575             :     { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
    3576             :         "set video filters", "filter_graph" },
    3577             :     { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3578             :                       OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
    3579             :         "specify intra matrix coeffs", "matrix" },
    3580             :     { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3581             :                       OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
    3582             :         "specify inter matrix coeffs", "matrix" },
    3583             :     { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
    3584             :                       OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
    3585             :         "specify intra matrix coeffs", "matrix" },
    3586             :     { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
    3587             :                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
    3588             :         "top=1/bottom=0/auto=-1 field first", "" },
    3589             :     { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
    3590             :                       OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
    3591             :         "force video tag/fourcc", "fourcc/tag" },
    3592             :     { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
    3593             :         "show QP histogram" },
    3594             :     { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
    3595             :                       OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
    3596             :         "force the selected framerate, disable the best supported framerate selection" },
    3597             :     { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
    3598             :                       OPT_OUTPUT,                                                { .func_arg = opt_streamid },
    3599             :         "set the value of an outfile streamid", "streamIndex:value" },
    3600             :     { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3601             :                           OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
    3602             :         "force key frames at specified timestamps", "timestamps" },
    3603             :     { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3604             :         "audio bitrate (please use -b:a)", "bitrate" },
    3605             :     { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
    3606             :         "video bitrate (please use -b:v)", "bitrate" },
    3607             :     { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3608             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
    3609             :         "use HW accelerated decoding", "hwaccel name" },
    3610             :     { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3611             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
    3612             :         "select a device for HW acceleration", "devicename" },
    3613             :     { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
    3614             :                           OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
    3615             :         "select output format used with HW accelerated decoding", "format" },
    3616             : #if CONFIG_VDA || CONFIG_VIDEOTOOLBOX
    3617             :     { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
    3618             : #endif
    3619             :     { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
    3620             :         "show available HW acceleration methods" },
    3621             :     { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
    3622             :                           OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
    3623             :         "automatically insert correct rotate filters" },
    3624             :     { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,                        { &hwaccel_lax_profile_check},
    3625             :         "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
    3626             : 
    3627             :     /* audio options */
    3628             :     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
    3629             :         "set the number of audio frames to output", "number" },
    3630             :     { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
    3631             :         "set audio quality (codec-specific)", "quality", },
    3632             :     { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3633             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
    3634             :         "set audio sampling rate (in Hz)", "rate" },
    3635             :     { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
    3636             :                         OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
    3637             :         "set number of audio channels", "channels" },
    3638             :     { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
    3639             :         "disable audio" },
    3640             :     { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
    3641             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
    3642             :         "force audio codec ('copy' to copy stream)", "codec" },
    3643             :     { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3644             :                         OPT_OUTPUT,                                                { .func_arg = opt_old2new },
    3645             :         "force audio tag/fourcc", "fourcc/tag" },
    3646             :     { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
    3647             :         "change audio volume (256=normal)" , "volume" },
    3648             :     { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
    3649             :                         OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
    3650             :         "set sample format", "format" },
    3651             :     { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
    3652             :                         OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
    3653             :         "set channel layout", "layout" },
    3654             :     { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
    3655             :         "set audio filters", "filter_graph" },
    3656             :     { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
    3657             :       "set the maximum number of channels to try to guess the channel layout" },
    3658             : 
    3659             :     /* subtitle options */
    3660             :     { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
    3661             :         "disable subtitle" },
    3662             :     { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
    3663             :         "force subtitle codec ('copy' to copy stream)", "codec" },
    3664             :     { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
    3665             :         , "force subtitle tag/fourcc", "fourcc/tag" },
    3666             :     { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
    3667             :         "fix subtitles duration" },
    3668             :     { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
    3669             :         "set canvas size (WxH or abbreviation)", "size" },
    3670             : 
    3671             :     /* grab options */
    3672             :     { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
    3673             :         "deprecated, use -channel", "channel" },
    3674             :     { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
    3675             :         "deprecated, use -standard", "standard" },
    3676             :     { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
    3677             : 
    3678             :     /* muxer options */
    3679             :     { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
    3680             :         "set the maximum demux-decode delay", "seconds" },
    3681             :     { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
    3682             :         "set the initial demux-decode delay", "seconds" },
    3683             :     { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
    3684             :         "override the options from ffserver", "" },
    3685             :     { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
    3686             :         "specify a file in which to print sdp information", "file" },
    3687             : 
    3688             :     { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
    3689             :         "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
    3690             :     { "enc_time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(enc_time_bases) },
    3691             :         "set the desired time base for the encoder (1:24, 1:48000 or 0.04166, 2.0833e-5). "
    3692             :         "two special values are defined - "
    3693             :         "0 = use frame rate (video) or sample rate (audio),"
    3694             :         "-1 = match source time base", "ratio" },
    3695             : 
    3696             :     { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
    3697             :         "A comma-separated list of bitstream filters", "bitstream_filters" },
    3698             :     { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3699             :         "deprecated", "audio bitstream_filters" },
    3700             :     { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
    3701             :         "deprecated", "video bitstream_filters" },
    3702             : 
    3703             :     { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3704             :         "set the audio options to the indicated preset", "preset" },
    3705             :     { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
    3706             :         "set the video options to the indicated preset", "preset" },
    3707             :     { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
    3708             :         "set the subtitle options to the indicated preset", "preset" },
    3709             :     { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
    3710             :         "set options from indicated preset file", "filename" },
    3711             : 
    3712             :     { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
    3713             :         "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
    3714             : 
    3715             :     /* data codec support */
    3716             :     { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
    3717             :         "force data codec ('copy' to copy stream)", "codec" },
    3718             :     { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
    3719             :         "disable data" },
    3720             : 
    3721             : #if CONFIG_VAAPI
    3722             :     { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
    3723             :         "set VAAPI hardware device (DRM path or X11 display name)", "device" },
    3724             : #endif
    3725             : 
    3726             : #if CONFIG_QSV
    3727             :     { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
    3728             :         "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
    3729             : #endif
    3730             : 
    3731             :     { "init_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_init_hw_device },
    3732             :         "initialise hardware device", "args" },
    3733             :     { "filter_hw_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_hw_device },
    3734             :         "set hardware device used when filtering", "device" },
    3735             : 
    3736             :     { NULL, },
    3737             : };

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