2 * ffmpeg option parsing
4 * This file is part of FFmpeg.
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.
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.
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
26 #include "libavformat/avformat.h"
28 #include "libavcodec/avcodec.h"
30 #include "libavfilter/avfilter.h"
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"
44 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
47 for (i = 0; i < o->nb_ ## name; i++) {\
48 char *spec = o->name[i].specifier;\
49 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
50 outvar = o->name[i].u.type;\
56 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
59 for (i = 0; i < o->nb_ ## name; i++) {\
60 char *spec = o->name[i].specifier;\
61 if (!strcmp(spec, mediatype))\
62 outvar = o->name[i].u.type;\
66 const HWAccel hwaccels[] = {
68 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
71 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
74 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
79 char *vstats_filename;
81 float audio_drift_threshold = 0.1;
82 float dts_delta_threshold = 10;
83 float dts_error_threshold = 3600*30;
85 int audio_volume = 256;
86 int audio_sync_method = 0;
87 int video_sync_method = VSYNC_AUTO;
88 int do_deinterlace = 0;
90 int do_benchmark_all = 0;
94 int start_at_zero = 0;
97 int exit_on_error = 0;
100 int stdin_interaction = 1;
101 int frame_bits_per_raw_sample = 0;
102 float max_error_rate = 2.0/3;
105 static int intra_only = 0;
106 static int file_overwrite = 0;
107 static int no_file_overwrite = 0;
108 static int do_psnr = 0;
109 static int input_sync;
110 static int override_ffserver = 0;
112 static void uninit_options(OptionsContext *o)
114 const OptionDef *po = options;
117 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
119 void *dst = (uint8_t*)o + po->u.off;
121 if (po->flags & OPT_SPEC) {
122 SpecifierOpt **so = dst;
123 int i, *count = (int*)(so + 1);
124 for (i = 0; i < *count; i++) {
125 av_freep(&(*so)[i].specifier);
126 if (po->flags & OPT_STRING)
127 av_freep(&(*so)[i].u.str);
131 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
136 for (i = 0; i < o->nb_stream_maps; i++)
137 av_freep(&o->stream_maps[i].linklabel);
138 av_freep(&o->stream_maps);
139 av_freep(&o->audio_channel_maps);
140 av_freep(&o->streamid_map);
141 av_freep(&o->attachments);
144 static void init_options(OptionsContext *o)
146 memset(o, 0, sizeof(*o));
148 o->stop_time = INT64_MAX;
149 o->mux_max_delay = 0.7;
150 o->start_time = AV_NOPTS_VALUE;
151 o->recording_time = INT64_MAX;
152 o->limit_filesize = UINT64_MAX;
153 o->chapters_input_file = INT_MAX;
154 o->accurate_seek = 1;
157 /* return a copy of the input with the stream specifiers removed from the keys */
158 static AVDictionary *strip_specifiers(AVDictionary *dict)
160 AVDictionaryEntry *e = NULL;
161 AVDictionary *ret = NULL;
163 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
164 char *p = strchr(e->key, ':');
168 av_dict_set(&ret, e->key, e->value, 0);
175 static int opt_sameq(void *optctx, const char *opt, const char *arg)
177 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
178 "If you are looking for an option to preserve the quality (which is not "
179 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
181 return AVERROR(EINVAL);
184 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
186 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
187 return opt_default(optctx, "channel", arg);
190 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
192 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
193 return opt_default(optctx, "standard", arg);
196 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
198 OptionsContext *o = optctx;
199 return parse_option(o, "codec:a", arg, options);
202 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
204 OptionsContext *o = optctx;
205 return parse_option(o, "codec:v", arg, options);
208 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
210 OptionsContext *o = optctx;
211 return parse_option(o, "codec:s", arg, options);
214 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
216 OptionsContext *o = optctx;
217 return parse_option(o, "codec:d", arg, options);
220 static int opt_map(void *optctx, const char *opt, const char *arg)
222 OptionsContext *o = optctx;
224 int i, negative = 0, file_idx;
225 int sync_file_idx = -1, sync_stream_idx = 0;
233 map = av_strdup(arg);
235 return AVERROR(ENOMEM);
237 /* parse sync stream first, just pick first matching stream */
238 if (sync = strchr(map, ',')) {
240 sync_file_idx = strtol(sync + 1, &sync, 0);
241 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
242 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
247 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
248 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
249 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
253 if (i == input_files[sync_file_idx]->nb_streams) {
254 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
255 "match any streams.\n", arg);
262 /* this mapping refers to lavfi output */
263 const char *c = map + 1;
264 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
265 m = &o->stream_maps[o->nb_stream_maps - 1];
266 m->linklabel = av_get_token(&c, "]");
268 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
272 file_idx = strtol(map, &p, 0);
273 if (file_idx >= nb_input_files || file_idx < 0) {
274 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
278 /* disable some already defined maps */
279 for (i = 0; i < o->nb_stream_maps; i++) {
280 m = &o->stream_maps[i];
281 if (file_idx == m->file_index &&
282 check_stream_specifier(input_files[m->file_index]->ctx,
283 input_files[m->file_index]->ctx->streams[m->stream_index],
284 *p == ':' ? p + 1 : p) > 0)
288 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
289 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
290 *p == ':' ? p + 1 : p) <= 0)
292 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
293 m = &o->stream_maps[o->nb_stream_maps - 1];
295 m->file_index = file_idx;
298 if (sync_file_idx >= 0) {
299 m->sync_file_index = sync_file_idx;
300 m->sync_stream_index = sync_stream_idx;
302 m->sync_file_index = file_idx;
303 m->sync_stream_index = i;
309 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
317 static int opt_attach(void *optctx, const char *opt, const char *arg)
319 OptionsContext *o = optctx;
320 GROW_ARRAY(o->attachments, o->nb_attachments);
321 o->attachments[o->nb_attachments - 1] = arg;
325 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
327 OptionsContext *o = optctx;
332 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
333 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
335 /* muted channel syntax */
336 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
337 if ((n == 1 || n == 3) && m->channel_idx == -1) {
338 m->file_idx = m->stream_idx = -1;
340 m->ofile_idx = m->ostream_idx = -1;
345 n = sscanf(arg, "%d.%d.%d:%d.%d",
346 &m->file_idx, &m->stream_idx, &m->channel_idx,
347 &m->ofile_idx, &m->ostream_idx);
349 if (n != 3 && n != 5) {
350 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
351 "[file.stream.channel|-1][:syncfile:syncstream]\n");
355 if (n != 5) // only file.stream.channel specified
356 m->ofile_idx = m->ostream_idx = -1;
359 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
360 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
364 if (m->stream_idx < 0 ||
365 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
366 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
367 m->file_idx, m->stream_idx);
370 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
371 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
372 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
373 m->file_idx, m->stream_idx);
376 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
377 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
378 m->file_idx, m->stream_idx, m->channel_idx);
385 * Parse a metadata specifier passed as 'arg' parameter.
386 * @param arg metadata string to parse
387 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
388 * @param index for type c/p, chapter/program index is written here
389 * @param stream_spec for type s, the stream specifier is written here
391 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
399 if (*(++arg) && *arg != ':') {
400 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
403 *stream_spec = *arg == ':' ? arg + 1 : "";
408 *index = strtol(++arg, NULL, 0);
411 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
418 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
420 AVDictionary **meta_in = NULL;
421 AVDictionary **meta_out = NULL;
423 char type_in, type_out;
424 const char *istream_spec = NULL, *ostream_spec = NULL;
425 int idx_in = 0, idx_out = 0;
427 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
428 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
431 if (type_out == 'g' || !*outspec)
432 o->metadata_global_manual = 1;
433 if (type_out == 's' || !*outspec)
434 o->metadata_streams_manual = 1;
435 if (type_out == 'c' || !*outspec)
436 o->metadata_chapters_manual = 1;
440 if (type_in == 'g' || type_out == 'g')
441 o->metadata_global_manual = 1;
442 if (type_in == 's' || type_out == 's')
443 o->metadata_streams_manual = 1;
444 if (type_in == 'c' || type_out == 'c')
445 o->metadata_chapters_manual = 1;
447 /* ic is NULL when just disabling automatic mappings */
451 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
452 if ((index) < 0 || (index) >= (nb_elems)) {\
453 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
458 #define SET_DICT(type, meta, context, index)\
461 meta = &context->metadata;\
464 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
465 meta = &context->chapters[index]->metadata;\
468 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
469 meta = &context->programs[index]->metadata;\
472 break; /* handled separately below */ \
473 default: av_assert0(0);\
476 SET_DICT(type_in, meta_in, ic, idx_in);
477 SET_DICT(type_out, meta_out, oc, idx_out);
479 /* for input streams choose first matching stream */
480 if (type_in == 's') {
481 for (i = 0; i < ic->nb_streams; i++) {
482 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
483 meta_in = &ic->streams[i]->metadata;
489 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
494 if (type_out == 's') {
495 for (i = 0; i < oc->nb_streams; i++) {
496 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
497 meta_out = &oc->streams[i]->metadata;
498 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
503 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
508 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
510 OptionsContext *o = optctx;
512 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
513 struct tm time = *gmtime((time_t*)&recording_timestamp);
514 if (!strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time))
516 parse_option(o, "metadata", buf, options);
518 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
519 "tag instead.\n", opt);
523 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
525 const AVCodecDescriptor *desc;
526 const char *codec_string = encoder ? "encoder" : "decoder";
530 avcodec_find_encoder_by_name(name) :
531 avcodec_find_decoder_by_name(name);
533 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
534 codec = encoder ? avcodec_find_encoder(desc->id) :
535 avcodec_find_decoder(desc->id);
537 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
538 codec_string, codec->name, desc->name);
542 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
545 if (codec->type != type) {
546 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
552 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
554 char *codec_name = NULL;
556 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
558 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
559 st->codec->codec_id = codec->id;
562 return avcodec_find_decoder(st->codec->codec_id);
565 /* Add all the streams from the given input file to the global
566 * list of input streams. */
567 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
571 for (i = 0; i < ic->nb_streams; i++) {
572 AVStream *st = ic->streams[i];
573 AVCodecContext *dec = st->codec;
574 InputStream *ist = av_mallocz(sizeof(*ist));
575 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
576 char *codec_tag = NULL;
578 char *discard_str = NULL;
579 const AVOption *discard_opt = av_opt_find(dec, "skip_frame", NULL, 0, 0);
584 GROW_ARRAY(input_streams, nb_input_streams);
585 input_streams[nb_input_streams - 1] = ist;
588 ist->file_index = nb_input_files;
590 st->discard = AVDISCARD_ALL;
593 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
595 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
597 uint32_t tag = strtol(codec_tag, &next, 0);
599 tag = AV_RL32(codec_tag);
600 st->codec->codec_tag = tag;
603 ist->dec = choose_decoder(o, ic, st);
604 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
606 ist->reinit_filters = -1;
607 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
609 MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
610 ist->user_set_discard = AVDISCARD_NONE;
611 if (discard_str && av_opt_eval_int(dec, discard_opt, discard_str, &ist->user_set_discard) < 0) {
612 av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
617 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
619 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
621 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
625 ret = avcodec_copy_context(ist->dec_ctx, dec);
627 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
631 switch (dec->codec_type) {
632 case AVMEDIA_TYPE_VIDEO:
634 ist->dec = avcodec_find_decoder(dec->codec_id);
635 if (av_codec_get_lowres(dec)) {
636 dec->flags |= CODEC_FLAG_EMU_EDGE;
639 ist->resample_height = ist->dec_ctx->height;
640 ist->resample_width = ist->dec_ctx->width;
641 ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
643 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
644 if (framerate && av_parse_video_rate(&ist->framerate,
646 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
651 ist->top_field_first = -1;
652 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
654 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
656 if (!strcmp(hwaccel, "none"))
657 ist->hwaccel_id = HWACCEL_NONE;
658 else if (!strcmp(hwaccel, "auto"))
659 ist->hwaccel_id = HWACCEL_AUTO;
662 for (i = 0; hwaccels[i].name; i++) {
663 if (!strcmp(hwaccels[i].name, hwaccel)) {
664 ist->hwaccel_id = hwaccels[i].id;
669 if (!ist->hwaccel_id) {
670 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
672 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
673 for (i = 0; hwaccels[i].name; i++)
674 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
675 av_log(NULL, AV_LOG_FATAL, "\n");
681 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
682 if (hwaccel_device) {
683 ist->hwaccel_device = av_strdup(hwaccel_device);
684 if (!ist->hwaccel_device)
687 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
690 case AVMEDIA_TYPE_AUDIO:
691 ist->guess_layout_max = INT_MAX;
692 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
693 guess_input_channel_layout(ist);
695 ist->resample_sample_fmt = ist->dec_ctx->sample_fmt;
696 ist->resample_sample_rate = ist->dec_ctx->sample_rate;
697 ist->resample_channels = ist->dec_ctx->channels;
698 ist->resample_channel_layout = ist->dec_ctx->channel_layout;
701 case AVMEDIA_TYPE_DATA:
702 case AVMEDIA_TYPE_SUBTITLE: {
703 char *canvas_size = NULL;
705 ist->dec = avcodec_find_decoder(dec->codec_id);
706 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
707 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
709 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
710 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
715 case AVMEDIA_TYPE_ATTACHMENT:
716 case AVMEDIA_TYPE_UNKNOWN:
724 static void assert_file_overwrite(const char *filename)
726 if (file_overwrite && no_file_overwrite) {
727 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
731 if (!file_overwrite) {
732 const char *proto_name = avio_find_protocol_name(filename);
733 if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
734 if (stdin_interaction && !no_file_overwrite) {
735 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
738 signal(SIGINT, SIG_DFL);
740 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
746 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
753 static void dump_attachment(AVStream *st, const char *filename)
756 AVIOContext *out = NULL;
757 AVDictionaryEntry *e;
759 if (!st->codec->extradata_size) {
760 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
761 nb_input_files - 1, st->index);
764 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
767 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
768 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
772 assert_file_overwrite(filename);
774 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
775 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
780 avio_write(out, st->codec->extradata, st->codec->extradata_size);
785 static int open_input_file(OptionsContext *o, const char *filename)
789 AVInputFormat *file_iformat = NULL;
793 AVDictionary *unused_opts = NULL;
794 AVDictionaryEntry *e = NULL;
795 int orig_nb_streams; // number of streams before avformat_find_stream_info
796 char * video_codec_name = NULL;
797 char * audio_codec_name = NULL;
798 char *subtitle_codec_name = NULL;
799 int scan_all_pmts_set = 0;
802 if (!(file_iformat = av_find_input_format(o->format))) {
803 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
808 if (!strcmp(filename, "-"))
811 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
812 strcmp(filename, "/dev/stdin");
814 /* get default parameters from command line */
815 ic = avformat_alloc_context();
817 print_error(filename, AVERROR(ENOMEM));
820 if (o->nb_audio_sample_rate) {
821 av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
823 if (o->nb_audio_channels) {
824 /* because we set audio_channels based on both the "ac" and
825 * "channel_layout" options, we need to check that the specified
826 * demuxer actually has the "channels" option before setting it */
827 if (file_iformat && file_iformat->priv_class &&
828 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
829 AV_OPT_SEARCH_FAKE_OBJ)) {
830 av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
833 if (o->nb_frame_rates) {
834 /* set the format-level framerate option;
835 * this is important for video grabbers, e.g. x11 */
836 if (file_iformat && file_iformat->priv_class &&
837 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
838 AV_OPT_SEARCH_FAKE_OBJ)) {
839 av_dict_set(&o->g->format_opts, "framerate",
840 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
843 if (o->nb_frame_sizes) {
844 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
846 if (o->nb_frame_pix_fmts)
847 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
849 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
850 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
851 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
853 ic->video_codec_id = video_codec_name ?
854 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
855 ic->audio_codec_id = audio_codec_name ?
856 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
857 ic->subtitle_codec_id= subtitle_codec_name ?
858 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
860 if (video_codec_name)
861 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
862 if (audio_codec_name)
863 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
864 if (subtitle_codec_name)
865 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
867 ic->flags |= AVFMT_FLAG_NONBLOCK;
868 ic->interrupt_callback = int_cb;
870 if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
871 av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
872 scan_all_pmts_set = 1;
874 /* open the input file with generic avformat function */
875 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
877 print_error(filename, err);
880 if (scan_all_pmts_set)
881 av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
882 remove_avoptions(&o->g->format_opts, o->g->codec_opts);
883 assert_avoptions(o->g->format_opts);
885 /* apply forced codec ids */
886 for (i = 0; i < ic->nb_streams; i++)
887 choose_decoder(o, ic, ic->streams[i]);
889 /* Set AVCodecContext options for avformat_find_stream_info */
890 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
891 orig_nb_streams = ic->nb_streams;
893 /* If not enough info to get the stream parameters, we decode the
894 first frames to get it. (used in mpeg case for example) */
895 ret = avformat_find_stream_info(ic, opts);
897 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
898 if (ic->nb_streams == 0) {
899 avformat_close_input(&ic);
904 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
905 /* add the stream start time */
906 if (ic->start_time != AV_NOPTS_VALUE)
907 timestamp += ic->start_time;
909 /* if seeking requested, we execute it */
910 if (o->start_time != AV_NOPTS_VALUE) {
911 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
913 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
914 filename, (double)timestamp / AV_TIME_BASE);
918 /* update the current parameters so that they match the one of the input stream */
919 add_input_streams(o, ic);
921 /* dump the file content */
922 av_dump_format(ic, nb_input_files, filename, 0);
924 GROW_ARRAY(input_files, nb_input_files);
925 f = av_mallocz(sizeof(*f));
928 input_files[nb_input_files - 1] = f;
931 f->ist_index = nb_input_streams - ic->nb_streams;
932 f->start_time = o->start_time;
933 f->recording_time = o->recording_time;
934 f->input_ts_offset = o->input_ts_offset;
935 f->ts_offset = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
936 f->nb_streams = ic->nb_streams;
937 f->rate_emu = o->rate_emu;
938 f->accurate_seek = o->accurate_seek;
940 /* check if all codec options have been used */
941 unused_opts = strip_specifiers(o->g->codec_opts);
942 for (i = f->ist_index; i < nb_input_streams; i++) {
944 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
945 AV_DICT_IGNORE_SUFFIX)))
946 av_dict_set(&unused_opts, e->key, NULL, 0);
950 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
951 const AVClass *class = avcodec_get_class();
952 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
953 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
954 const AVClass *fclass = avformat_get_class();
955 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
956 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
957 if (!option || foption)
961 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
962 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
963 "input file #%d (%s) is not a decoding option.\n", e->key,
964 option->help ? option->help : "", nb_input_files - 1,
969 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
970 "input file #%d (%s) has not been used for any stream. The most "
971 "likely reason is either wrong type (e.g. a video option with "
972 "no video streams) or that it is a private option of some decoder "
973 "which was not actually used for any stream.\n", e->key,
974 option->help ? option->help : "", nb_input_files - 1, filename);
976 av_dict_free(&unused_opts);
978 for (i = 0; i < o->nb_dump_attachment; i++) {
981 for (j = 0; j < ic->nb_streams; j++) {
982 AVStream *st = ic->streams[j];
984 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
985 dump_attachment(st, o->dump_attachment[i].u.str);
989 for (i = 0; i < orig_nb_streams; i++)
990 av_dict_free(&opts[i]);
996 static uint8_t *get_line(AVIOContext *s)
1002 if (avio_open_dyn_buf(&line) < 0) {
1003 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
1007 while ((c = avio_r8(s)) && c != '\n')
1010 avio_close_dyn_buf(line, &buf);
1015 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
1018 char filename[1000];
1019 const char *base[3] = { getenv("AVCONV_DATADIR"),
1024 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
1028 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
1029 i != 1 ? "" : "/.avconv", codec_name, preset_name);
1030 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1033 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
1034 i != 1 ? "" : "/.avconv", preset_name);
1035 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1041 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
1043 char *codec_name = NULL;
1045 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
1047 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
1048 NULL, ost->st->codec->codec_type);
1049 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1050 } else if (!strcmp(codec_name, "copy"))
1051 ost->stream_copy = 1;
1053 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
1054 ost->st->codec->codec_id = ost->enc->id;
1058 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
1061 AVStream *st = avformat_new_stream(oc, NULL);
1062 int idx = oc->nb_streams - 1, ret = 0;
1063 char *bsf = NULL, *next, *codec_tag = NULL;
1064 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
1069 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
1073 if (oc->nb_streams - 1 < o->nb_streamid_map)
1074 st->id = o->streamid_map[oc->nb_streams - 1];
1076 GROW_ARRAY(output_streams, nb_output_streams);
1077 if (!(ost = av_mallocz(sizeof(*ost))))
1079 output_streams[nb_output_streams - 1] = ost;
1081 ost->file_index = nb_output_files - 1;
1084 st->codec->codec_type = type;
1085 choose_encoder(o, oc, ost);
1087 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
1088 if (!ost->enc_ctx) {
1089 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
1092 ost->enc_ctx->codec_type = type;
1095 AVIOContext *s = NULL;
1096 char *buf = NULL, *arg = NULL, *preset = NULL;
1098 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1100 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1101 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1104 if (!buf[0] || buf[0] == '#') {
1108 if (!(arg = strchr(buf, '='))) {
1109 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1113 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1115 } while (!s->eof_reached);
1119 av_log(NULL, AV_LOG_FATAL,
1120 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1121 preset, ost->file_index, ost->index);
1125 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1128 ost->max_frames = INT64_MAX;
1129 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1130 for (i = 0; i<o->nb_max_frames; i++) {
1131 char *p = o->max_frames[i].specifier;
1132 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1133 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1138 ost->copy_prior_start = -1;
1139 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1141 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1144 if (next = strchr(bsf, ','))
1146 if (arg = strchr(bsf, '='))
1148 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1149 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1153 bsfc_prev->next = bsfc;
1155 ost->bitstream_filters = bsfc;
1156 av_dict_set(&ost->bsf_args, bsfc->filter->name, arg, 0);
1162 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1164 uint32_t tag = strtol(codec_tag, &next, 0);
1166 tag = AV_RL32(codec_tag);
1167 ost->enc_ctx->codec_tag = tag;
1170 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1172 ost->enc_ctx->flags |= CODEC_FLAG_QSCALE;
1173 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1176 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1177 ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
1179 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1181 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1182 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1183 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1185 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1187 ost->source_index = source_index;
1188 if (source_index >= 0) {
1189 ost->sync_ist = input_streams[source_index];
1190 input_streams[source_index]->discard = 0;
1191 input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
1193 ost->last_mux_dts = AV_NOPTS_VALUE;
1198 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1201 const char *p = str;
1208 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1215 /* read file contents into a string */
1216 static uint8_t *read_file(const char *filename)
1218 AVIOContext *pb = NULL;
1219 AVIOContext *dyn_buf = NULL;
1220 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1221 uint8_t buf[1024], *str;
1224 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1228 ret = avio_open_dyn_buf(&dyn_buf);
1233 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1234 avio_write(dyn_buf, buf, ret);
1235 avio_w8(dyn_buf, 0);
1238 ret = avio_close_dyn_buf(dyn_buf, &str);
1244 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1247 AVStream *st = ost->st;
1249 if (ost->filters_script && ost->filters) {
1250 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1251 "output stream #%d:%d.\n", nb_output_files, st->index);
1255 if (ost->filters_script)
1256 return read_file(ost->filters_script);
1257 else if (ost->filters)
1258 return av_strdup(ost->filters);
1260 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1264 static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1265 const OutputStream *ost, enum AVMediaType type)
1267 if (ost->filters_script || ost->filters) {
1268 av_log(NULL, AV_LOG_ERROR,
1269 "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
1270 "Filtering and streamcopy cannot be used together.\n",
1271 ost->filters ? "Filtergraph" : "Filtergraph script",
1272 ost->filters ? ost->filters : ost->filters_script,
1273 av_get_media_type_string(type), ost->file_index, ost->index);
1278 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1282 AVCodecContext *video_enc;
1283 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1285 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1287 video_enc = ost->enc_ctx;
1289 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1290 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1291 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1294 if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
1295 av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
1297 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1298 if (frame_aspect_ratio) {
1300 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1301 q.num <= 0 || q.den <= 0) {
1302 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1305 ost->frame_aspect_ratio = q;
1308 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1309 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1311 if (!ost->stream_copy) {
1312 const char *p = NULL;
1313 char *frame_size = NULL;
1314 char *frame_pix_fmt = NULL;
1315 char *intra_matrix = NULL, *inter_matrix = NULL;
1316 char *chroma_intra_matrix = NULL;
1320 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1321 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1322 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1326 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1327 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1328 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1329 ost->keep_pix_fmt = 1;
1330 if (!*++frame_pix_fmt)
1331 frame_pix_fmt = NULL;
1333 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1334 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1337 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1340 video_enc->gop_size = 0;
1341 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1343 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1344 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1347 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1349 MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
1350 if (chroma_intra_matrix) {
1351 uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
1353 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1356 av_codec_set_chroma_intra_matrix(video_enc, p);
1357 parse_matrix_coeffs(p, chroma_intra_matrix);
1359 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1361 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1362 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1365 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1368 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1369 for (i = 0; p; i++) {
1371 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1373 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1376 /* FIXME realloc failure */
1377 video_enc->rc_override =
1378 av_realloc(video_enc->rc_override,
1379 sizeof(RcOverride) * (i + 1));
1380 video_enc->rc_override[i].start_frame = start;
1381 video_enc->rc_override[i].end_frame = end;
1383 video_enc->rc_override[i].qscale = q;
1384 video_enc->rc_override[i].quality_factor = 1.0;
1387 video_enc->rc_override[i].qscale = 0;
1388 video_enc->rc_override[i].quality_factor = -q/100.0;
1393 video_enc->rc_override_count = i;
1396 video_enc->flags|= CODEC_FLAG_PSNR;
1399 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1402 video_enc->flags |= CODEC_FLAG_PASS1;
1403 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
1406 video_enc->flags |= CODEC_FLAG_PASS2;
1407 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
1411 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1412 if (ost->logfile_prefix &&
1413 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1416 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1417 if (ost->forced_keyframes)
1418 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1420 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1422 ost->top_field_first = -1;
1423 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1426 ost->avfilter = get_ost_filters(o, oc, ost);
1430 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1433 if (ost->stream_copy)
1434 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1439 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1444 AVCodecContext *audio_enc;
1446 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1449 audio_enc = ost->enc_ctx;
1450 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1452 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1453 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1455 if (!ost->stream_copy) {
1456 char *sample_fmt = NULL;
1458 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1460 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1462 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1463 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1467 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1469 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1470 ost->apad = av_strdup(ost->apad);
1472 ost->avfilter = get_ost_filters(o, oc, ost);
1476 /* check for channel mapping for this audio stream */
1477 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1478 AudioChannelMap *map = &o->audio_channel_maps[n];
1479 if ((map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1480 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1483 if (map->channel_idx == -1) {
1485 } else if (ost->source_index < 0) {
1486 av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
1487 ost->file_index, ost->st->index);
1490 ist = input_streams[ost->source_index];
1493 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
1494 if (av_reallocp_array(&ost->audio_channels_map,
1495 ost->audio_channels_mapped + 1,
1496 sizeof(*ost->audio_channels_map)
1500 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1506 if (ost->stream_copy)
1507 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1512 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1516 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1517 if (!ost->stream_copy) {
1518 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1525 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1527 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1528 ost->stream_copy = 1;
1533 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1537 AVCodecContext *subtitle_enc;
1539 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1541 subtitle_enc = ost->enc_ctx;
1543 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1545 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1547 if (!ost->stream_copy) {
1548 char *frame_size = NULL;
1550 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1551 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1552 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1560 /* arg format is "output-stream-index:streamid-value". */
1561 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1563 OptionsContext *o = optctx;
1568 av_strlcpy(idx_str, arg, sizeof(idx_str));
1569 p = strchr(idx_str, ':');
1571 av_log(NULL, AV_LOG_FATAL,
1572 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1577 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1578 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1579 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1583 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1585 AVFormatContext *is = ifile->ctx;
1586 AVFormatContext *os = ofile->ctx;
1590 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1592 return AVERROR(ENOMEM);
1595 for (i = 0; i < is->nb_chapters; i++) {
1596 AVChapter *in_ch = is->chapters[i], *out_ch;
1597 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1598 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1599 AV_TIME_BASE_Q, in_ch->time_base);
1600 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1601 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1604 if (in_ch->end < ts_off)
1606 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1609 out_ch = av_mallocz(sizeof(AVChapter));
1611 return AVERROR(ENOMEM);
1613 out_ch->id = in_ch->id;
1614 out_ch->time_base = in_ch->time_base;
1615 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1616 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1619 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1621 os->chapters[os->nb_chapters++] = out_ch;
1626 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1629 AVFormatContext *ic = avformat_alloc_context();
1631 ic->interrupt_callback = int_cb;
1632 err = avformat_open_input(&ic, filename, NULL, NULL);
1635 /* copy stream format */
1636 for(i=0;i<ic->nb_streams;i++) {
1640 const char *enc_config;
1642 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1644 av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codec->codec_id);
1645 return AVERROR(EINVAL);
1647 if (codec->type == AVMEDIA_TYPE_AUDIO)
1648 opt_audio_codec(o, "c:a", codec->name);
1649 else if (codec->type == AVMEDIA_TYPE_VIDEO)
1650 opt_video_codec(o, "c:v", codec->name);
1651 ost = new_output_stream(o, s, codec->type, -1);
1654 avcodec_get_context_defaults3(st->codec, codec);
1655 enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
1657 AVDictionary *opts = NULL;
1658 av_dict_parse_string(&opts, enc_config, "=", ",", 0);
1659 av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
1660 av_dict_free(&opts);
1663 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1664 choose_sample_fmt(st, codec);
1665 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1666 choose_pixel_fmt(st, st->codec, codec, st->codec->pix_fmt);
1667 avcodec_copy_context(ost->enc_ctx, st->codec);
1669 av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
1672 avformat_close_input(&ic);
1676 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1677 AVFormatContext *oc)
1681 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1682 ofilter->out_tmp->pad_idx)) {
1683 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1684 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1686 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1691 ost->source_index = -1;
1692 ost->filter = ofilter;
1696 if (ost->stream_copy) {
1697 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1698 "which is fed from a complex filtergraph. Filtering and streamcopy "
1699 "cannot be used together.\n", ost->file_index, ost->index);
1703 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1704 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1705 av_log(NULL, AV_LOG_ERROR,
1706 "%s '%s' was specified through the %s option "
1707 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1708 "%s and -filter_complex cannot be used together for the same stream.\n",
1709 ost->filters ? "Filtergraph" : "Filtergraph script",
1710 ost->filters ? ost->filters : ost->filters_script,
1711 opt, ost->file_index, ost->index, opt);
1715 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1716 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1719 avfilter_inout_free(&ofilter->out_tmp);
1722 static int configure_complex_filters(void)
1726 for (i = 0; i < nb_filtergraphs; i++)
1727 if (!filtergraphs[i]->graph &&
1728 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1733 static int open_output_file(OptionsContext *o, const char *filename)
1735 AVFormatContext *oc;
1737 AVOutputFormat *file_oformat;
1741 AVDictionary *unused_opts = NULL;
1742 AVDictionaryEntry *e = NULL;
1744 if (configure_complex_filters() < 0) {
1745 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1749 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1750 o->stop_time = INT64_MAX;
1751 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1754 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1755 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1756 if (o->stop_time <= start_time) {
1757 av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
1760 o->recording_time = o->stop_time - start_time;
1764 GROW_ARRAY(output_files, nb_output_files);
1765 of = av_mallocz(sizeof(*of));
1768 output_files[nb_output_files - 1] = of;
1770 of->ost_index = nb_output_streams;
1771 of->recording_time = o->recording_time;
1772 of->start_time = o->start_time;
1773 of->limit_filesize = o->limit_filesize;
1774 of->shortest = o->shortest;
1775 av_dict_copy(&of->opts, o->g->format_opts, 0);
1777 if (!strcmp(filename, "-"))
1780 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1782 print_error(filename, err);
1787 if (o->recording_time != INT64_MAX)
1788 oc->duration = o->recording_time;
1790 file_oformat= oc->oformat;
1791 oc->interrupt_callback = int_cb;
1793 /* create streams for all unlabeled output pads */
1794 for (i = 0; i < nb_filtergraphs; i++) {
1795 FilterGraph *fg = filtergraphs[i];
1796 for (j = 0; j < fg->nb_outputs; j++) {
1797 OutputFilter *ofilter = fg->outputs[j];
1799 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1802 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1803 ofilter->out_tmp->pad_idx)) {
1804 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1805 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1806 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1808 init_output_filter(ofilter, o, oc);
1812 /* ffserver seeking with date=... needs a date reference */
1813 if (!strcmp(file_oformat->name, "ffm") &&
1814 av_strstart(filename, "http:", NULL)) {
1815 int err = parse_option(o, "metadata", "creation_time=now", options);
1817 print_error(filename, err);
1822 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1823 av_strstart(filename, "http:", NULL)) {
1825 /* special case for files sent to ffserver: we get the stream
1826 parameters from ffserver */
1827 int err = read_ffserver_streams(o, oc, filename);
1829 print_error(filename, err);
1832 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1833 ost = output_streams[j];
1834 for (i = 0; i < nb_input_streams; i++) {
1835 ist = input_streams[i];
1836 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1838 ost->source_index= i;
1839 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1840 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1842 ist->st->discard = ist->user_set_discard;
1847 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
1851 } else if (!o->nb_stream_maps) {
1852 char *subtitle_codec_name = NULL;
1853 /* pick the "best" stream of each type */
1855 /* video: highest resolution */
1856 if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
1857 int area = 0, idx = -1;
1858 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1859 for (i = 0; i < nb_input_streams; i++) {
1861 ist = input_streams[i];
1862 new_area = ist->st->codec->width * ist->st->codec->height;
1863 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1865 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1867 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1874 new_video_stream(o, oc, idx);
1877 /* audio: most channels */
1878 if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
1879 int channels = 0, idx = -1;
1880 for (i = 0; i < nb_input_streams; i++) {
1881 ist = input_streams[i];
1882 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1883 ist->st->codec->channels > channels) {
1884 channels = ist->st->codec->channels;
1889 new_audio_stream(o, oc, idx);
1892 /* subtitles: pick first */
1893 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1894 if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
1895 for (i = 0; i < nb_input_streams; i++)
1896 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1897 AVCodecDescriptor const *input_descriptor =
1898 avcodec_descriptor_get(input_streams[i]->st->codec->codec_id);
1899 AVCodecDescriptor const *output_descriptor = NULL;
1900 AVCodec const *output_codec =
1901 avcodec_find_encoder(oc->oformat->subtitle_codec);
1902 int input_props = 0, output_props = 0;
1904 output_descriptor = avcodec_descriptor_get(output_codec->id);
1905 if (input_descriptor)
1906 input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
1907 if (output_descriptor)
1908 output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
1909 if (subtitle_codec_name ||
1910 input_props & output_props ||
1911 // Map dvb teletext which has neither property to any output subtitle encoder
1912 input_descriptor && output_descriptor &&
1913 (!input_descriptor->props ||
1914 !output_descriptor->props)) {
1915 new_subtitle_stream(o, oc, i);
1920 /* do something with data? */
1922 for (i = 0; i < o->nb_stream_maps; i++) {
1923 StreamMap *map = &o->stream_maps[i];
1928 if (map->linklabel) {
1930 OutputFilter *ofilter = NULL;
1933 for (j = 0; j < nb_filtergraphs; j++) {
1934 fg = filtergraphs[j];
1935 for (k = 0; k < fg->nb_outputs; k++) {
1936 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1937 if (out && !strcmp(out->name, map->linklabel)) {
1938 ofilter = fg->outputs[k];
1945 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1946 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1949 init_output_filter(ofilter, o, oc);
1951 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1953 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1954 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1956 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1958 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1960 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1963 switch (ist->st->codec->codec_type) {
1964 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1965 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1966 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1967 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1968 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1970 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1971 map->file_index, map->stream_index);
1978 /* handle attached files */
1979 for (i = 0; i < o->nb_attachments; i++) {
1981 uint8_t *attachment;
1985 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1986 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1990 if ((len = avio_size(pb)) <= 0) {
1991 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1995 if (!(attachment = av_malloc(len))) {
1996 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
2000 avio_read(pb, attachment, len);
2002 ost = new_attachment_stream(o, oc, -1);
2003 ost->stream_copy = 0;
2004 ost->attachment_filename = o->attachments[i];
2006 ost->enc_ctx->extradata = attachment;
2007 ost->enc_ctx->extradata_size = len;
2009 p = strrchr(o->attachments[i], '/');
2010 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
2014 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
2015 AVDictionaryEntry *e;
2016 ost = output_streams[i];
2018 if ((ost->stream_copy || ost->attachment_filename)
2019 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
2020 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
2021 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
2025 /* check if all codec options have been used */
2026 unused_opts = strip_specifiers(o->g->codec_opts);
2027 for (i = of->ost_index; i < nb_output_streams; i++) {
2029 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
2030 AV_DICT_IGNORE_SUFFIX)))
2031 av_dict_set(&unused_opts, e->key, NULL, 0);
2035 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
2036 const AVClass *class = avcodec_get_class();
2037 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
2038 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2039 const AVClass *fclass = avformat_get_class();
2040 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
2041 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2042 if (!option || foption)
2046 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
2047 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
2048 "output file #%d (%s) is not an encoding option.\n", e->key,
2049 option->help ? option->help : "", nb_output_files - 1,
2054 // gop_timecode is injected by generic code but not always used
2055 if (!strcmp(e->key, "gop_timecode"))
2058 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
2059 "output file #%d (%s) has not been used for any stream. The most "
2060 "likely reason is either wrong type (e.g. a video option with "
2061 "no video streams) or that it is a private option of some encoder "
2062 "which was not actually used for any stream.\n", e->key,
2063 option->help ? option->help : "", nb_output_files - 1, filename);
2065 av_dict_free(&unused_opts);
2067 /* check filename in case of an image number is expected */
2068 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2069 if (!av_filename_number_test(oc->filename)) {
2070 print_error(oc->filename, AVERROR(EINVAL));
2075 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2076 /* test if it already exists to avoid losing precious files */
2077 assert_file_overwrite(filename);
2080 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
2081 &oc->interrupt_callback,
2083 print_error(filename, err);
2086 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
2087 assert_file_overwrite(filename);
2089 if (o->mux_preload) {
2090 av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
2092 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2095 for (i = 0; i < o->nb_metadata_map; i++) {
2097 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2099 if (in_file_index >= nb_input_files) {
2100 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2103 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2104 in_file_index >= 0 ?
2105 input_files[in_file_index]->ctx : NULL, o);
2109 if (o->chapters_input_file >= nb_input_files) {
2110 if (o->chapters_input_file == INT_MAX) {
2111 /* copy chapters from the first input file that has them*/
2112 o->chapters_input_file = -1;
2113 for (i = 0; i < nb_input_files; i++)
2114 if (input_files[i]->ctx->nb_chapters) {
2115 o->chapters_input_file = i;
2119 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2120 o->chapters_input_file);
2124 if (o->chapters_input_file >= 0)
2125 copy_chapters(input_files[o->chapters_input_file], of,
2126 !o->metadata_chapters_manual);
2128 /* copy global metadata by default */
2129 if (!o->metadata_global_manual && nb_input_files){
2130 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2131 AV_DICT_DONT_OVERWRITE);
2132 if(o->recording_time != INT64_MAX)
2133 av_dict_set(&oc->metadata, "duration", NULL, 0);
2134 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2136 if (!o->metadata_streams_manual)
2137 for (i = of->ost_index; i < nb_output_streams; i++) {
2139 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2141 ist = input_streams[output_streams[i]->source_index];
2142 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2143 if (!output_streams[i]->stream_copy)
2144 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
2147 /* process manually set metadata */
2148 for (i = 0; i < o->nb_metadata; i++) {
2151 const char *stream_spec;
2152 int index = 0, j, ret = 0;
2154 val = strchr(o->metadata[i].u.str, '=');
2156 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2157 o->metadata[i].u.str);
2162 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2164 for (j = 0; j < oc->nb_streams; j++) {
2165 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2166 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2177 if (index < 0 || index >= oc->nb_chapters) {
2178 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2181 m = &oc->chapters[index]->metadata;
2184 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2187 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2194 static int opt_target(void *optctx, const char *opt, const char *arg)
2196 OptionsContext *o = optctx;
2197 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2198 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2200 if (!strncmp(arg, "pal-", 4)) {
2203 } else if (!strncmp(arg, "ntsc-", 5)) {
2206 } else if (!strncmp(arg, "film-", 5)) {
2210 /* Try to determine PAL/NTSC by peeking in the input files */
2211 if (nb_input_files) {
2213 for (j = 0; j < nb_input_files; j++) {
2214 for (i = 0; i < input_files[j]->nb_streams; i++) {
2215 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2216 if (c->codec_type != AVMEDIA_TYPE_VIDEO ||
2219 fr = c->time_base.den * 1000 / c->time_base.num;
2223 } else if ((fr == 29970) || (fr == 23976)) {
2228 if (norm != UNKNOWN)
2232 if (norm != UNKNOWN)
2233 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2236 if (norm == UNKNOWN) {
2237 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2238 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2239 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2243 if (!strcmp(arg, "vcd")) {
2244 opt_video_codec(o, "c:v", "mpeg1video");
2245 opt_audio_codec(o, "c:a", "mp2");
2246 parse_option(o, "f", "vcd", options);
2248 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2249 parse_option(o, "r", frame_rates[norm], options);
2250 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2252 opt_default(NULL, "b:v", "1150000");
2253 opt_default(NULL, "maxrate", "1150000");
2254 opt_default(NULL, "minrate", "1150000");
2255 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
2257 opt_default(NULL, "b:a", "224000");
2258 parse_option(o, "ar", "44100", options);
2259 parse_option(o, "ac", "2", options);
2261 opt_default(NULL, "packetsize", "2324");
2262 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
2264 /* We have to offset the PTS, so that it is consistent with the SCR.
2265 SCR starts at 36000, but the first two packs contain only padding
2266 and the first pack from the other stream, respectively, may also have
2267 been written before.
2268 So the real data starts at SCR 36000+3*1200. */
2269 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2270 } else if (!strcmp(arg, "svcd")) {
2272 opt_video_codec(o, "c:v", "mpeg2video");
2273 opt_audio_codec(o, "c:a", "mp2");
2274 parse_option(o, "f", "svcd", options);
2276 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2277 parse_option(o, "r", frame_rates[norm], options);
2278 parse_option(o, "pix_fmt", "yuv420p", options);
2279 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2281 opt_default(NULL, "b:v", "2040000");
2282 opt_default(NULL, "maxrate", "2516000");
2283 opt_default(NULL, "minrate", "0"); // 1145000;
2284 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2285 opt_default(NULL, "scan_offset", "1");
2287 opt_default(NULL, "b:a", "224000");
2288 parse_option(o, "ar", "44100", options);
2290 opt_default(NULL, "packetsize", "2324");
2292 } else if (!strcmp(arg, "dvd")) {
2294 opt_video_codec(o, "c:v", "mpeg2video");
2295 opt_audio_codec(o, "c:a", "ac3");
2296 parse_option(o, "f", "dvd", options);
2298 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2299 parse_option(o, "r", frame_rates[norm], options);
2300 parse_option(o, "pix_fmt", "yuv420p", options);
2301 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2303 opt_default(NULL, "b:v", "6000000");
2304 opt_default(NULL, "maxrate", "9000000");
2305 opt_default(NULL, "minrate", "0"); // 1500000;
2306 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2308 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2309 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2311 opt_default(NULL, "b:a", "448000");
2312 parse_option(o, "ar", "48000", options);
2314 } else if (!strncmp(arg, "dv", 2)) {
2316 parse_option(o, "f", "dv", options);
2318 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2319 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2320 norm == PAL ? "yuv420p" : "yuv411p", options);
2321 parse_option(o, "r", frame_rates[norm], options);
2323 parse_option(o, "ar", "48000", options);
2324 parse_option(o, "ac", "2", options);
2327 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2328 return AVERROR(EINVAL);
2331 av_dict_copy(&o->g->codec_opts, codec_opts, AV_DICT_DONT_OVERWRITE);
2332 av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
2337 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2339 av_free (vstats_filename);
2340 vstats_filename = av_strdup (arg);
2344 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2347 time_t today2 = time(NULL);
2348 struct tm *today = localtime(&today2);
2350 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2352 return opt_vstats_file(NULL, opt, filename);
2355 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2357 OptionsContext *o = optctx;
2358 return parse_option(o, "frames:v", arg, options);
2361 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2363 OptionsContext *o = optctx;
2364 return parse_option(o, "frames:a", arg, options);
2367 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2369 OptionsContext *o = optctx;
2370 return parse_option(o, "frames:d", arg, options);
2373 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2376 AVDictionary *cbak = codec_opts;
2377 AVDictionary *fbak = format_opts;
2381 ret = opt_default(NULL, opt, arg);
2383 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2384 av_dict_copy(&o->g->format_opts, format_opts, 0);
2385 av_dict_free(&codec_opts);
2386 av_dict_free(&format_opts);
2393 static int opt_preset(void *optctx, const char *opt, const char *arg)
2395 OptionsContext *o = optctx;
2397 char filename[1000], line[1000], tmp_line[1000];
2398 const char *codec_name = NULL;
2402 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2404 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2405 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2406 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2408 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2412 while (fgets(line, sizeof(line), f)) {
2413 char *key = tmp_line, *value, *endptr;
2415 if (strcspn(line, "#\n\r") == 0)
2417 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2418 if (!av_strtok(key, "=", &value) ||
2419 !av_strtok(value, "\r\n", &endptr)) {
2420 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2423 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2425 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2426 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2427 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2428 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2429 else if (opt_default_new(o, key, value) < 0) {
2430 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2431 filename, line, key, value);
2441 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2443 OptionsContext *o = optctx;
2444 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2445 int ret = parse_option(o, s, arg, options);
2450 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2452 OptionsContext *o = optctx;
2454 if(!strcmp(opt, "ab")){
2455 av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
2457 } else if(!strcmp(opt, "b")){
2458 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2459 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2462 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2466 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2468 OptionsContext *o = optctx;
2471 if(!strcmp(opt, "qscale")){
2472 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2473 return parse_option(o, "q:v", arg, options);
2475 s = av_asprintf("q%s", opt + 6);
2476 ret = parse_option(o, s, arg, options);
2481 static int opt_profile(void *optctx, const char *opt, const char *arg)
2483 OptionsContext *o = optctx;
2484 if(!strcmp(opt, "profile")){
2485 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2486 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2489 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2493 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2495 OptionsContext *o = optctx;
2496 return parse_option(o, "filter:v", arg, options);
2499 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2501 OptionsContext *o = optctx;
2502 return parse_option(o, "filter:a", arg, options);
2505 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2507 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2508 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2509 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2510 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2512 if (video_sync_method == VSYNC_AUTO)
2513 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2517 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2519 OptionsContext *o = optctx;
2520 char *tcr = av_asprintf("timecode=%s", arg);
2521 int ret = parse_option(o, "metadata:g", tcr, options);
2523 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2528 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2530 OptionsContext *o = optctx;
2531 char layout_str[32];
2534 int ret, channels, ac_str_size;
2537 layout = av_get_channel_layout(arg);
2539 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2540 return AVERROR(EINVAL);
2542 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2543 ret = opt_default_new(o, opt, layout_str);
2547 /* set 'ac' option based on channel layout */
2548 channels = av_get_channel_layout_nb_channels(layout);
2549 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2550 stream_str = strchr(opt, ':');
2551 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2552 ac_str = av_mallocz(ac_str_size);
2554 return AVERROR(ENOMEM);
2555 av_strlcpy(ac_str, "ac", 3);
2557 av_strlcat(ac_str, stream_str, ac_str_size);
2558 ret = parse_option(o, ac_str, layout_str, options);
2564 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2566 OptionsContext *o = optctx;
2567 return parse_option(o, "q:a", arg, options);
2570 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2572 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2573 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2574 return AVERROR(ENOMEM);
2575 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2576 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2577 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2578 return AVERROR(ENOMEM);
2582 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2584 uint8_t *graph_desc = read_file(arg);
2586 return AVERROR(EINVAL);
2588 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2589 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2590 return AVERROR(ENOMEM);
2591 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2592 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2596 void show_help_default(const char *opt, const char *arg)
2598 /* per-file options have at least one of those set */
2599 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2600 int show_advanced = 0, show_avoptions = 0;
2603 if (!strcmp(opt, "long"))
2605 else if (!strcmp(opt, "full"))
2606 show_advanced = show_avoptions = 1;
2608 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2613 printf("Getting help:\n"
2614 " -h -- print basic options\n"
2615 " -h long -- print more options\n"
2616 " -h full -- print all options (including all format and codec specific options, very long)\n"
2617 " See man %s for detailed description of the options.\n"
2618 "\n", program_name);
2620 show_help_options(options, "Print help / information / capabilities:",
2623 show_help_options(options, "Global options (affect whole program "
2624 "instead of just one file:",
2625 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2627 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2628 per_file | OPT_EXIT, 0);
2630 show_help_options(options, "Per-file main options:", 0,
2631 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2632 OPT_EXIT, per_file);
2634 show_help_options(options, "Advanced per-file options:",
2635 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2637 show_help_options(options, "Video options:",
2638 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2640 show_help_options(options, "Advanced Video options:",
2641 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2643 show_help_options(options, "Audio options:",
2644 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2646 show_help_options(options, "Advanced Audio options:",
2647 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2648 show_help_options(options, "Subtitle options:",
2649 OPT_SUBTITLE, 0, 0);
2652 if (show_avoptions) {
2653 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2654 show_help_children(avcodec_get_class(), flags);
2655 show_help_children(avformat_get_class(), flags);
2657 show_help_children(sws_get_class(), flags);
2659 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2660 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2664 void show_usage(void)
2666 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2667 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2668 av_log(NULL, AV_LOG_INFO, "\n");
2676 static const OptionGroupDef groups[] = {
2677 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2678 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2681 static int open_files(OptionGroupList *l, const char *inout,
2682 int (*open_file)(OptionsContext*, const char*))
2686 for (i = 0; i < l->nb_groups; i++) {
2687 OptionGroup *g = &l->groups[i];
2693 ret = parse_optgroup(&o, g);
2695 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2696 "%s.\n", inout, g->arg);
2700 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2701 ret = open_file(&o, g->arg);
2704 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2708 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2714 int ffmpeg_parse_options(int argc, char **argv)
2716 OptionParseContext octx;
2720 memset(&octx, 0, sizeof(octx));
2722 /* split the commandline into an internal representation */
2723 ret = split_commandline(&octx, argc, argv, options, groups,
2724 FF_ARRAY_ELEMS(groups));
2726 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2730 /* apply global options */
2731 ret = parse_optgroup(NULL, &octx.global_opts);
2733 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2737 /* open input files */
2738 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2740 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2744 /* open output files */
2745 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2747 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2752 uninit_parse_context(&octx);
2754 av_strerror(ret, error, sizeof(error));
2755 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2760 static int opt_progress(void *optctx, const char *opt, const char *arg)
2762 AVIOContext *avio = NULL;
2765 if (!strcmp(arg, "-"))
2767 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2769 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2770 arg, av_err2str(ret));
2773 progress_avio = avio;
2777 #define OFFSET(x) offsetof(OptionsContext, x)
2778 const OptionDef options[] = {
2780 #include "cmdutils_common_opts.h"
2781 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2782 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2783 "force format", "fmt" },
2784 { "y", OPT_BOOL, { &file_overwrite },
2785 "overwrite output files" },
2786 { "n", OPT_BOOL, { &no_file_overwrite },
2787 "never overwrite output files" },
2788 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2789 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2790 "codec name", "codec" },
2791 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2792 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2793 "codec name", "codec" },
2794 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2795 OPT_OUTPUT, { .off = OFFSET(presets) },
2796 "preset name", "preset" },
2797 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2798 OPT_OUTPUT, { .func_arg = opt_map },
2799 "set input stream mapping",
2800 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2801 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2802 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2803 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2804 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2805 "set metadata information of outfile from infile",
2806 "outfile[,metadata]:infile[,metadata]" },
2807 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2808 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2809 "set chapters mapping", "input_file_index" },
2810 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2811 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2812 "record or transcode \"duration\" seconds of audio/video",
2814 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2815 "record or transcode stop time", "time_stop" },
2816 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2817 "set the limit file size in bytes", "limit_size" },
2818 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2819 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2820 "set the start time offset", "time_off" },
2821 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2822 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2823 "enable/disable accurate seeking with -ss" },
2824 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2825 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2826 "set the input ts offset", "time_off" },
2827 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2828 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2829 "set the input ts scale", "scale" },
2830 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2831 "set the recording timestamp ('now' to set the current time)", "time" },
2832 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2833 "add metadata", "string=string" },
2834 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2835 OPT_OUTPUT, { .func_arg = opt_data_frames },
2836 "set the number of data frames to output", "number" },
2837 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2838 "add timings for benchmarking" },
2839 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2840 "add timings for each task" },
2841 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2842 "write program-readable progress information", "url" },
2843 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2844 "enable or disable interaction on standard input" },
2845 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2846 "set max runtime in seconds", "limit" },
2847 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2848 "dump each input packet" },
2849 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2850 "when dumping packets, also dump the payload" },
2851 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2852 OPT_INPUT, { .off = OFFSET(rate_emu) },
2853 "read input at native frame rate", "" },
2854 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2855 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2856 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2857 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2858 "video sync method", "" },
2859 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2860 "audio sync method", "" },
2861 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2862 "audio drift threshold", "threshold" },
2863 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2864 "copy timestamps" },
2865 { "start_at_zero", OPT_BOOL | OPT_EXPERT, { &start_at_zero },
2866 "shift input timestamps to start at 0 when using copyts" },
2867 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2868 "copy input stream time base when stream copying", "mode" },
2869 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2870 OPT_OUTPUT, { .off = OFFSET(shortest) },
2871 "finish encoding within shortest input" },
2872 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2873 OPT_OUTPUT, { .off = OFFSET(apad) },
2875 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2876 "timestamp discontinuity delta threshold", "threshold" },
2877 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2878 "timestamp error delta threshold", "threshold" },
2879 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2880 "exit on error", "error" },
2881 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2882 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2883 "copy initial non-keyframes" },
2884 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2885 "copy or discard frames before start time" },
2886 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2887 "set the number of frames to output", "number" },
2888 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2889 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2890 "force codec tag/fourcc", "fourcc/tag" },
2891 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2892 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2893 "use fixed quality scale (VBR)", "q" },
2894 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2895 OPT_OUTPUT, { .func_arg = opt_qscale },
2896 "use fixed quality scale (VBR)", "q" },
2897 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2898 "set profile", "profile" },
2899 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2900 "set stream filtergraph", "filter_graph" },
2901 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2902 "read stream filtergraph description from a file", "filename" },
2903 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2904 "reinit filtergraph on input parameter changes", "" },
2905 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2906 "create a complex filtergraph", "graph_description" },
2907 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2908 "create a complex filtergraph", "graph_description" },
2909 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2910 "read complex filtergraph description from a file", "filename" },
2911 { "stats", OPT_BOOL, { &print_stats },
2912 "print progress report during encoding", },
2913 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2914 OPT_OUTPUT, { .func_arg = opt_attach },
2915 "add an attachment to the output file", "filename" },
2916 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2917 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2918 "extract an attachment into a file", "filename" },
2919 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2920 "print timestamp debugging info" },
2921 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2922 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2923 { "discard", OPT_STRING | HAS_ARG | OPT_SPEC |
2924 OPT_INPUT, { .off = OFFSET(discard) },
2928 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2929 "set the number of video frames to output", "number" },
2930 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2931 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2932 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2933 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2934 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2935 "set frame size (WxH or abbreviation)", "size" },
2936 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2937 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2938 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2939 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2940 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2941 "set pixel format", "format" },
2942 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2943 "set the number of bits per raw sample", "number" },
2944 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2945 "deprecated use -g 1" },
2946 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2948 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2949 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2950 "rate control override for specific intervals", "override" },
2951 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2952 OPT_OUTPUT, { .func_arg = opt_video_codec },
2953 "force video codec ('copy' to copy stream)", "codec" },
2954 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2956 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2958 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2959 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2960 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2961 "select the pass number (1 to 3)", "n" },
2962 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2963 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2964 "select two pass log file name prefix", "prefix" },
2965 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2966 "this option is deprecated, use the yadif filter instead" },
2967 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2968 "calculate PSNR of compressed frames" },
2969 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2970 "dump video coding statistics to file" },
2971 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2972 "dump video coding statistics to file", "file" },
2973 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2974 "set video filters", "filter_graph" },
2975 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2976 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2977 "specify intra matrix coeffs", "matrix" },
2978 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2979 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2980 "specify inter matrix coeffs", "matrix" },
2981 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2982 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
2983 "specify intra matrix coeffs", "matrix" },
2984 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2985 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2986 "top=1/bottom=0/auto=-1 field first", "" },
2987 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2988 OPT_OUTPUT, { .func_arg = opt_old2new },
2989 "force video tag/fourcc", "fourcc/tag" },
2990 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2991 "show QP histogram" },
2992 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2993 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2994 "force the selected framerate, disable the best supported framerate selection" },
2995 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2996 OPT_OUTPUT, { .func_arg = opt_streamid },
2997 "set the value of an outfile streamid", "streamIndex:value" },
2998 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2999 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
3000 "force key frames at specified timestamps", "timestamps" },
3001 { "ab", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
3002 "audio bitrate (please use -b:a)", "bitrate" },
3003 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
3004 "video bitrate (please use -b:v)", "bitrate" },
3005 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
3006 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
3007 "use HW accelerated decoding", "hwaccel name" },
3008 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
3009 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
3010 "select a device for HW acceleration" "devicename" },
3012 { "vdpau_api_ver", HAS_ARG | OPT_INT | OPT_EXPERT, { &vdpau_api_ver }, "" },
3016 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
3017 "set the number of audio frames to output", "number" },
3018 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
3019 "set audio quality (codec-specific)", "quality", },
3020 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3021 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
3022 "set audio sampling rate (in Hz)", "rate" },
3023 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3024 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
3025 "set number of audio channels", "channels" },
3026 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
3028 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
3029 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
3030 "force audio codec ('copy' to copy stream)", "codec" },
3031 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3032 OPT_OUTPUT, { .func_arg = opt_old2new },
3033 "force audio tag/fourcc", "fourcc/tag" },
3034 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
3035 "change audio volume (256=normal)" , "volume" },
3036 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
3037 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
3038 "set sample format", "format" },
3039 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3040 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
3041 "set channel layout", "layout" },
3042 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
3043 "set audio filters", "filter_graph" },
3044 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
3045 "set the maximum number of channels to try to guess the channel layout" },
3047 /* subtitle options */
3048 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
3049 "disable subtitle" },
3050 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
3051 "force subtitle codec ('copy' to copy stream)", "codec" },
3052 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
3053 , "force subtitle tag/fourcc", "fourcc/tag" },
3054 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
3055 "fix subtitles duration" },
3056 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
3057 "set canvas size (WxH or abbreviation)", "size" },
3060 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
3061 "deprecated, use -channel", "channel" },
3062 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
3063 "deprecated, use -standard", "standard" },
3064 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
3067 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
3068 "set the maximum demux-decode delay", "seconds" },
3069 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
3070 "set the initial demux-decode delay", "seconds" },
3071 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
3072 "override the options from ffserver", "" },
3074 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
3075 "A comma-separated list of bitstream filters", "bitstream_filters" },
3076 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3077 "deprecated", "audio bitstream_filters" },
3078 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3079 "deprecated", "video bitstream_filters" },
3081 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3082 "set the audio options to the indicated preset", "preset" },
3083 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3084 "set the video options to the indicated preset", "preset" },
3085 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3086 "set the subtitle options to the indicated preset", "preset" },
3087 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3088 "set options from indicated preset file", "filename" },
3089 /* data codec support */
3090 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
3091 "force data codec ('copy' to copy stream)", "codec" },
3092 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },