]> git.sesse.net Git - ffmpeg/blobdiff - fftools/ffmpeg_opt.c
avfilter/vf_identity: remove unnecessary check
[ffmpeg] / fftools / ffmpeg_opt.c
index 2eb4e1c973fbce3f1e0b91c137158a6ab96e5bfe..c0b9f023bd64ad6e967e0a4961fab28d98119a83 100644 (file)
 #define SPECIFIER_OPT_FMT_f    "%f"
 #define SPECIFIER_OPT_FMT_dbl  "%lf"
 
-static const char *opt_name_codec_names[]               = {"c", "codec", "acodec", "vcodec", "scodec", "dcodec", NULL};
-static const char *opt_name_audio_channels[]            = {"ac", NULL};
-static const char *opt_name_audio_sample_rate[]         = {"ar", NULL};
-static const char *opt_name_frame_rates[]               = {"r", NULL};
-static const char *opt_name_frame_sizes[]               = {"s", NULL};
-static const char *opt_name_frame_pix_fmts[]            = {"pix_fmt", NULL};
-static const char *opt_name_ts_scale[]                  = {"itsscale", NULL};
-static const char *opt_name_hwaccels[]                  = {"hwaccel", NULL};
-static const char *opt_name_hwaccel_devices[]           = {"hwaccel_device", NULL};
-static const char *opt_name_hwaccel_output_formats[]    = {"hwaccel_output_format", NULL};
-static const char *opt_name_autorotate[]                = {"autorotate", NULL};
-static const char *opt_name_max_frames[]                = {"frames", "aframes", "vframes", "dframes", NULL};
-static const char *opt_name_bitstream_filters[]         = {"bsf", "absf", "vbsf", NULL};
-static const char *opt_name_codec_tags[]                = {"tag", "atag", "vtag", "stag", NULL};
-static const char *opt_name_sample_fmts[]               = {"sample_fmt", NULL};
-static const char *opt_name_qscale[]                    = {"q", "qscale", NULL};
-static const char *opt_name_forced_key_frames[]         = {"forced_key_frames", NULL};
-static const char *opt_name_force_fps[]                 = {"force_fps", NULL};
-static const char *opt_name_frame_aspect_ratios[]       = {"aspect", NULL};
-static const char *opt_name_rc_overrides[]              = {"rc_override", NULL};
-static const char *opt_name_intra_matrices[]            = {"intra_matrix", NULL};
-static const char *opt_name_inter_matrices[]            = {"inter_matrix", NULL};
-static const char *opt_name_chroma_intra_matrices[]     = {"chroma_intra_matrix", NULL};
-static const char *opt_name_top_field_first[]           = {"top", NULL};
-static const char *opt_name_presets[]                   = {"pre", "apre", "vpre", "spre", NULL};
-static const char *opt_name_copy_initial_nonkeyframes[] = {"copyinkfr", NULL};
-static const char *opt_name_copy_prior_start[]          = {"copypriorss", NULL};
-static const char *opt_name_filters[]                   = {"filter", "af", "vf", NULL};
-static const char *opt_name_filter_scripts[]            = {"filter_script", NULL};
-static const char *opt_name_reinit_filters[]            = {"reinit_filter", NULL};
-static const char *opt_name_fix_sub_duration[]          = {"fix_sub_duration", NULL};
-static const char *opt_name_canvas_sizes[]              = {"canvas_size", NULL};
-static const char *opt_name_pass[]                      = {"pass", NULL};
-static const char *opt_name_passlogfiles[]              = {"passlogfile", NULL};
-static const char *opt_name_max_muxing_queue_size[]     = {"max_muxing_queue_size", NULL};
-static const char *opt_name_guess_layout_max[]          = {"guess_layout_max", NULL};
-static const char *opt_name_apad[]                      = {"apad", NULL};
-static const char *opt_name_discard[]                   = {"discard", NULL};
-static const char *opt_name_disposition[]               = {"disposition", NULL};
-static const char *opt_name_time_bases[]                = {"time_base", NULL};
-static const char *opt_name_enc_time_bases[]            = {"enc_time_base", NULL};
+static const char *const opt_name_codec_names[]               = {"c", "codec", "acodec", "vcodec", "scodec", "dcodec", NULL};
+static const char *const opt_name_audio_channels[]            = {"ac", NULL};
+static const char *const opt_name_audio_sample_rate[]         = {"ar", NULL};
+static const char *const opt_name_frame_rates[]               = {"r", NULL};
+static const char *const opt_name_max_frame_rates[]           = {"fpsmax", NULL};
+static const char *const opt_name_frame_sizes[]               = {"s", NULL};
+static const char *const opt_name_frame_pix_fmts[]            = {"pix_fmt", NULL};
+static const char *const opt_name_ts_scale[]                  = {"itsscale", NULL};
+static const char *const opt_name_hwaccels[]                  = {"hwaccel", NULL};
+static const char *const opt_name_hwaccel_devices[]           = {"hwaccel_device", NULL};
+static const char *const opt_name_hwaccel_output_formats[]    = {"hwaccel_output_format", NULL};
+static const char *const opt_name_autorotate[]                = {"autorotate", NULL};
+static const char *const opt_name_autoscale[]                 = {"autoscale", NULL};
+static const char *const opt_name_max_frames[]                = {"frames", "aframes", "vframes", "dframes", NULL};
+static const char *const opt_name_bitstream_filters[]         = {"bsf", "absf", "vbsf", NULL};
+static const char *const opt_name_codec_tags[]                = {"tag", "atag", "vtag", "stag", NULL};
+static const char *const opt_name_sample_fmts[]               = {"sample_fmt", NULL};
+static const char *const opt_name_qscale[]                    = {"q", "qscale", NULL};
+static const char *const opt_name_forced_key_frames[]         = {"forced_key_frames", NULL};
+static const char *const opt_name_force_fps[]                 = {"force_fps", NULL};
+static const char *const opt_name_frame_aspect_ratios[]       = {"aspect", NULL};
+static const char *const opt_name_rc_overrides[]              = {"rc_override", NULL};
+static const char *const opt_name_intra_matrices[]            = {"intra_matrix", NULL};
+static const char *const opt_name_inter_matrices[]            = {"inter_matrix", NULL};
+static const char *const opt_name_chroma_intra_matrices[]     = {"chroma_intra_matrix", NULL};
+static const char *const opt_name_top_field_first[]           = {"top", NULL};
+static const char *const opt_name_presets[]                   = {"pre", "apre", "vpre", "spre", NULL};
+static const char *const opt_name_copy_initial_nonkeyframes[] = {"copyinkfr", NULL};
+static const char *const opt_name_copy_prior_start[]          = {"copypriorss", NULL};
+static const char *const opt_name_filters[]                   = {"filter", "af", "vf", NULL};
+static const char *const opt_name_filter_scripts[]            = {"filter_script", NULL};
+static const char *const opt_name_reinit_filters[]            = {"reinit_filter", NULL};
+static const char *const opt_name_fix_sub_duration[]          = {"fix_sub_duration", NULL};
+static const char *const opt_name_canvas_sizes[]              = {"canvas_size", NULL};
+static const char *const opt_name_pass[]                      = {"pass", NULL};
+static const char *const opt_name_passlogfiles[]              = {"passlogfile", NULL};
+static const char *const opt_name_max_muxing_queue_size[]     = {"max_muxing_queue_size", NULL};
+static const char *const opt_name_muxing_queue_data_threshold[] = {"muxing_queue_data_threshold", NULL};
+static const char *const opt_name_guess_layout_max[]          = {"guess_layout_max", NULL};
+static const char *const opt_name_apad[]                      = {"apad", NULL};
+static const char *const opt_name_discard[]                   = {"discard", NULL};
+static const char *const opt_name_disposition[]               = {"disposition", NULL};
+static const char *const opt_name_time_bases[]                = {"time_base", NULL};
+static const char *const opt_name_enc_time_bases[]            = {"enc_time_base", NULL};
 
 #define WARN_MULTIPLE_OPT_USAGE(name, type, so, st)\
 {\
@@ -171,6 +174,8 @@ float max_error_rate  = 2.0/3;
 int filter_nbthreads = 0;
 int filter_complex_nbthreads = 0;
 int vstats_version = 2;
+int auto_conversion_filters = 1;
+int64_t stats_period = 500000;
 
 
 static int intra_only         = 0;
@@ -227,6 +232,7 @@ static void init_options(OptionsContext *o)
     o->limit_filesize = UINT64_MAX;
     o->chapters_input_file = INT_MAX;
     o->accurate_seek  = 1;
+    o->thread_queue_size = -1;
 }
 
 static int show_hwaccels(void *optctx, const char *opt, const char *arg)
@@ -278,6 +284,21 @@ static int opt_abort_on(void *optctx, const char *opt, const char *arg)
     return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
 }
 
+static int opt_stats_period(void *optctx, const char *opt, const char *arg)
+{
+    int64_t user_stats_period = parse_time_or_die(opt, arg, 1);
+
+    if (user_stats_period <= 0) {
+        av_log(NULL, AV_LOG_ERROR, "stats_period %s must be positive.\n", arg);
+        return AVERROR(EINVAL);
+    }
+
+    stats_period = user_stats_period;
+    av_log(NULL, AV_LOG_INFO, "ffmpeg stats and -progress period set to %s.\n", arg);
+
+    return 0;
+}
+
 static int opt_sameq(void *optctx, const char *opt, const char *arg)
 {
     av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
@@ -716,11 +737,11 @@ static int opt_recording_timestamp(void *optctx, const char *opt, const char *ar
     return 0;
 }
 
-static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
+static const AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 {
     const AVCodecDescriptor *desc;
     const char *codec_string = encoder ? "encoder" : "decoder";
-    AVCodec *codec;
+    const AVCodec *codec;
 
     codec = encoder ?
         avcodec_find_encoder_by_name(name) :
@@ -745,13 +766,13 @@ static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int e
     return codec;
 }
 
-static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
+static const AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
 {
     char *codec_name = NULL;
 
     MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
     if (codec_name) {
-        AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
+        const AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
         st->codecpar->codec_id = codec->id;
         return codec;
     } else
@@ -847,15 +868,6 @@ static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
         case AVMEDIA_TYPE_VIDEO:
             if(!ist->dec)
                 ist->dec = avcodec_find_decoder(par->codec_id);
-#if FF_API_LOWRES
-            if (st->codec->lowres) {
-                ist->dec_ctx->lowres = st->codec->lowres;
-                ist->dec_ctx->width  = st->codec->width;
-                ist->dec_ctx->height = st->codec->height;
-                ist->dec_ctx->coded_width  = st->codec->coded_width;
-                ist->dec_ctx->coded_height = st->codec->coded_height;
-            }
-#endif
 
             // avformat_find_stream_info() doesn't set this for us anymore.
             ist->dec_ctx->framerate = st->avg_frame_rate;
@@ -1056,7 +1068,7 @@ static int open_input_file(OptionsContext *o, const char *filename)
 {
     InputFile *f;
     AVFormatContext *ic;
-    AVInputFormat *file_iformat = NULL;
+    const AVInputFormat *file_iformat = NULL;
     int err, i, ret;
     int64_t timestamp;
     AVDictionary *unused_opts = NULL;
@@ -1105,20 +1117,22 @@ static int open_input_file(OptionsContext *o, const char *filename)
         av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
     }
     if (o->nb_audio_channels) {
+        const AVClass *priv_class;
         /* because we set audio_channels based on both the "ac" and
          * "channel_layout" options, we need to check that the specified
          * demuxer actually has the "channels" option before setting it */
-        if (file_iformat && file_iformat->priv_class &&
-            av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
+        if (file_iformat && (priv_class = file_iformat->priv_class) &&
+            av_opt_find(&priv_class, "channels", NULL, 0,
                         AV_OPT_SEARCH_FAKE_OBJ)) {
             av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
         }
     }
     if (o->nb_frame_rates) {
+        const AVClass *priv_class;
         /* set the format-level framerate option;
          * this is important for video grabbers, e.g. x11 */
-        if (file_iformat && file_iformat->priv_class &&
-            av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
+        if (file_iformat && (priv_class = file_iformat->priv_class) &&
+            av_opt_find(&priv_class, "framerate", NULL, 0,
                         AV_OPT_SEARCH_FAKE_OBJ)) {
             av_dict_set(&o->g->format_opts, "framerate",
                         o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
@@ -1268,8 +1282,11 @@ static int open_input_file(OptionsContext *o, const char *filename)
     f->loop = o->loop;
     f->duration = 0;
     f->time_base = (AVRational){ 1, 1 };
+    f->pkt = av_packet_alloc();
+    if (!f->pkt)
+        exit_program(1);
 #if HAVE_THREADS
-    f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
+    f->thread_queue_size = o->thread_queue_size;
 #endif
 
     /* check if all codec options have been used */
@@ -1462,6 +1479,8 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
         ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
 
         MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
+        ost->autoscale = 1;
+        MATCH_PER_STREAM_OPT(autoscale, i, ost->autoscale, oc, st);
         if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
             do  {
                 buf = get_line(s);
@@ -1557,7 +1576,12 @@ static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, e
 
     ost->max_muxing_queue_size = 128;
     MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
-    ost->max_muxing_queue_size *= sizeof(AVPacket);
+    ost->max_muxing_queue_size *= sizeof(ost->pkt);
+
+    ost->muxing_queue_data_size = 0;
+
+    ost->muxing_queue_data_threshold = 50*1024*1024;
+    MATCH_PER_STREAM_OPT(muxing_queue_data_threshold, i, ost->muxing_queue_data_threshold, oc, st);
 
     if (oc->oformat->flags & AVFMT_GLOBALHEADER)
         ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
@@ -1670,7 +1694,7 @@ static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, in
     AVStream *st;
     OutputStream *ost;
     AVCodecContext *video_enc;
-    char *frame_rate = NULL, *frame_aspect_ratio = NULL;
+    char *frame_rate = NULL, *max_frame_rate = NULL, *frame_aspect_ratio = NULL;
 
     ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
     st  = ost->st;
@@ -1681,8 +1705,21 @@ static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, in
         av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
         exit_program(1);
     }
-    if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
-        av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
+
+    MATCH_PER_STREAM_OPT(max_frame_rates, str, max_frame_rate, oc, st);
+    if (max_frame_rate && av_parse_video_rate(&ost->max_frame_rate, max_frame_rate) < 0) {
+        av_log(NULL, AV_LOG_FATAL, "Invalid maximum framerate value: %s\n", max_frame_rate);
+        exit_program(1);
+    }
+
+    if (frame_rate && max_frame_rate) {
+        av_log(NULL, AV_LOG_ERROR, "Only one of -fpsmax and -r can be set for a stream.\n");
+        exit_program(1);
+    }
+
+    if ((frame_rate || max_frame_rate) &&
+        video_sync_method == VSYNC_PASSTHROUGH)
+        av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r/-fpsmax can produce invalid output files\n");
 
     MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
     if (frame_aspect_ratio) {
@@ -2205,22 +2242,23 @@ static int open_output_file(OptionsContext *o, const char *filename)
 
         /* video: highest resolution */
         if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
-            int area = 0, idx = -1;
+            int best_score = 0, idx = -1;
             int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
             for (i = 0; i < nb_input_streams; i++) {
-                int new_area;
+                int score;
                 ist = input_streams[i];
-                new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames
+                score = ist->st->codecpar->width * ist->st->codecpar->height
+                           + 100000000 * !!(ist->st->event_flags & AVSTREAM_EVENT_FLAG_NEW_PACKETS)
                            + 5000000*!!(ist->st->disposition & AV_DISPOSITION_DEFAULT);
                 if (ist->user_set_discard == AVDISCARD_ALL)
                     continue;
                 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
-                    new_area = 1;
+                    score = 1;
                 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
-                    new_area > area) {
+                    score > best_score) {
                     if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
                         continue;
-                    area = new_area;
+                    best_score = score;
                     idx = i;
                 }
             }
@@ -2404,19 +2442,6 @@ loop_end:
         avio_closep(&pb);
     }
 
-#if FF_API_LAVF_AVCTX
-    for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
-        AVDictionaryEntry *e;
-        ost = output_streams[i];
-
-        if ((ost->stream_copy || ost->attachment_filename)
-            && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
-            && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
-            if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
-                exit_program(1);
-    }
-#endif
-
     if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
         av_dump_format(oc, nb_output_files - 1, oc->url, 1);
         av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
@@ -2622,6 +2647,9 @@ loop_end:
         if(o->recording_time != INT64_MAX)
             av_dict_set(&oc->metadata, "duration", NULL, 0);
         av_dict_set(&oc->metadata, "creation_time", NULL, 0);
+        av_dict_set(&oc->metadata, "company_name", NULL, 0);
+        av_dict_set(&oc->metadata, "product_name", NULL, 0);
+        av_dict_set(&oc->metadata, "product_version", NULL, 0);
     }
     if (!o->metadata_streams_manual)
         for (i = of->ost_index; i < nb_output_streams; i++) {
@@ -3541,8 +3569,12 @@ const OptionDef options[] = {
         "create a complex filtergraph", "graph_description" },
     { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
         "read complex filtergraph description from a file", "filename" },
+    { "auto_conversion_filters", OPT_BOOL | OPT_EXPERT,              { &auto_conversion_filters },
+        "enable automatic conversion filters globally" },
     { "stats",          OPT_BOOL,                                    { &print_stats },
         "print progress report during encoding", },
+    { "stats_period",    HAS_ARG | OPT_EXPERT,                       { .func_arg = opt_stats_period },
+        "set the period at which ffmpeg updates stats and -progress output", "time" },
     { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
                         OPT_OUTPUT,                                  { .func_arg = opt_attach },
         "add an attachment to the output file", "filename" },
@@ -3554,7 +3586,7 @@ const OptionDef options[] = {
     { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
         "print timestamp debugging info" },
     { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
-        "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.", "maximum error rate" },
+        "ratio of decoding errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.", "maximum error rate" },
     { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
                         OPT_INPUT,                                   { .off = OFFSET(discard) },
         "discard", "" },
@@ -3573,6 +3605,9 @@ const OptionDef options[] = {
     { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
         "set frame rate (Hz value, fraction or abbreviation)", "rate" },
+    { "fpsmax",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
+                      OPT_OUTPUT,                                                { .off = OFFSET(max_frame_rates) },
+        "set max frame rate (Hz value, fraction or abbreviation)", "rate" },
     { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
                       OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
         "set frame size (WxH or abbreviation)", "size" },
@@ -3664,6 +3699,9 @@ const OptionDef options[] = {
     { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
                           OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
         "automatically insert correct rotate filters" },
+    { "autoscale",        HAS_ARG | OPT_BOOL | OPT_SPEC |
+                          OPT_EXPERT | OPT_OUTPUT,                               { .off = OFFSET(autoscale) },
+        "automatically insert a scale filter at the end of the filter graph" },
 
     /* audio options */
     { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
@@ -3750,6 +3788,8 @@ const OptionDef options[] = {
 
     { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
         "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
+    { "muxing_queue_data_threshold", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(muxing_queue_data_threshold) },
+        "set the threshold after which max_muxing_queue_size is taken into account", "bytes" },
 
     /* data codec support */
     { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },