2 * avconv option parsing
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; 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"
31 #include "libavfilter/avfiltergraph.h"
33 #include "libavutil/audioconvert.h"
34 #include "libavutil/avassert.h"
35 #include "libavutil/avstring.h"
36 #include "libavutil/avutil.h"
37 #include "libavutil/intreadwrite.h"
38 #include "libavutil/fifo.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/opt.h"
41 #include "libavutil/parseutils.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/pixfmt.h"
45 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
48 for (i = 0; i < o->nb_ ## name; i++) {\
49 char *spec = o->name[i].specifier;\
50 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
51 outvar = o->name[i].u.type;\
57 char *vstats_filename;
59 float audio_drift_threshold = 0.1;
60 float dts_delta_threshold = 10;
62 int audio_volume = 256;
63 int audio_sync_method = 0;
64 int video_sync_method = VSYNC_AUTO;
65 int do_deinterlace = 0;
71 int exit_on_error = 0;
75 static int file_overwrite = 0;
76 static int video_discard = 0;
77 static int intra_dc_precision = 8;
78 static int using_stdin = 0;
79 static int input_sync;
81 void reset_options(OptionsContext *o)
83 const OptionDef *po = options;
86 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
88 void *dst = (uint8_t*)o + po->u.off;
90 if (po->flags & OPT_SPEC) {
91 SpecifierOpt **so = dst;
92 int i, *count = (int*)(so + 1);
93 for (i = 0; i < *count; i++) {
94 av_freep(&(*so)[i].specifier);
95 if (po->flags & OPT_STRING)
96 av_freep(&(*so)[i].u.str);
100 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
105 for (i = 0; i < o->nb_stream_maps; i++)
106 av_freep(&o->stream_maps[i].linklabel);
107 av_freep(&o->stream_maps);
108 av_freep(&o->meta_data_maps);
109 av_freep(&o->streamid_map);
111 memset(o, 0, sizeof(*o));
113 o->mux_max_delay = 0.7;
114 o->recording_time = INT64_MAX;
115 o->limit_filesize = UINT64_MAX;
116 o->chapters_input_file = INT_MAX;
123 static double parse_frame_aspect_ratio(const char *arg)
130 p = strchr(arg, ':');
132 x = strtol(arg, &end, 10);
134 y = strtol(end + 1, &end, 10);
136 ar = (double)x / (double)y;
138 ar = strtod(arg, NULL);
141 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
147 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
149 OptionsContext *o = optctx;
150 return parse_option(o, "codec:a", arg, options);
153 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
155 OptionsContext *o = optctx;
156 return parse_option(o, "codec:v", arg, options);
159 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
161 OptionsContext *o = optctx;
162 return parse_option(o, "codec:s", arg, options);
165 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
167 OptionsContext *o = optctx;
168 return parse_option(o, "codec:d", arg, options);
171 static int opt_map(void *optctx, const char *opt, const char *arg)
173 OptionsContext *o = optctx;
175 int i, negative = 0, file_idx;
176 int sync_file_idx = -1, sync_stream_idx;
184 map = av_strdup(arg);
186 /* parse sync stream first, just pick first matching stream */
187 if (sync = strchr(map, ',')) {
189 sync_file_idx = strtol(sync + 1, &sync, 0);
190 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
191 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
196 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
197 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
198 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
202 if (i == input_files[sync_file_idx]->nb_streams) {
203 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
204 "match any streams.\n", arg);
211 /* this mapping refers to lavfi output */
212 const char *c = map + 1;
213 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
214 &o->nb_stream_maps, o->nb_stream_maps + 1);
215 m = &o->stream_maps[o->nb_stream_maps - 1];
216 m->linklabel = av_get_token(&c, "]");
218 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
222 file_idx = strtol(map, &p, 0);
223 if (file_idx >= nb_input_files || file_idx < 0) {
224 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
228 /* disable some already defined maps */
229 for (i = 0; i < o->nb_stream_maps; i++) {
230 m = &o->stream_maps[i];
231 if (file_idx == m->file_index &&
232 check_stream_specifier(input_files[m->file_index]->ctx,
233 input_files[m->file_index]->ctx->streams[m->stream_index],
234 *p == ':' ? p + 1 : p) > 0)
238 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
239 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
240 *p == ':' ? p + 1 : p) <= 0)
242 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
243 &o->nb_stream_maps, o->nb_stream_maps + 1);
244 m = &o->stream_maps[o->nb_stream_maps - 1];
246 m->file_index = file_idx;
249 if (sync_file_idx >= 0) {
250 m->sync_file_index = sync_file_idx;
251 m->sync_stream_index = sync_stream_idx;
253 m->sync_file_index = file_idx;
254 m->sync_stream_index = i;
260 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
268 static int opt_attach(void *optctx, const char *opt, const char *arg)
270 OptionsContext *o = optctx;
271 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
272 &o->nb_attachments, o->nb_attachments + 1);
273 o->attachments[o->nb_attachments - 1] = arg;
278 * Parse a metadata specifier passed as 'arg' parameter.
279 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
280 * @param index for type c/p, chapter/program index is written here
281 * @param stream_spec for type s, the stream specifier is written here
283 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
291 if (*(++arg) && *arg != ':') {
292 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
295 *stream_spec = *arg == ':' ? arg + 1 : "";
300 *index = strtol(++arg, NULL, 0);
303 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
310 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
312 AVDictionary **meta_in = NULL;
313 AVDictionary **meta_out;
315 char type_in, type_out;
316 const char *istream_spec = NULL, *ostream_spec = NULL;
317 int idx_in = 0, idx_out = 0;
319 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
320 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
322 if (type_in == 'g' || type_out == 'g')
323 o->metadata_global_manual = 1;
324 if (type_in == 's' || type_out == 's')
325 o->metadata_streams_manual = 1;
326 if (type_in == 'c' || type_out == 'c')
327 o->metadata_chapters_manual = 1;
329 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
330 if ((index) < 0 || (index) >= (nb_elems)) {\
331 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
336 #define SET_DICT(type, meta, context, index)\
339 meta = &context->metadata;\
342 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
343 meta = &context->chapters[index]->metadata;\
346 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
347 meta = &context->programs[index]->metadata;\
349 default: av_assert0(0);\
352 SET_DICT(type_in, meta_in, ic, idx_in);
353 SET_DICT(type_out, meta_out, oc, idx_out);
355 /* for input streams choose first matching stream */
356 if (type_in == 's') {
357 for (i = 0; i < ic->nb_streams; i++) {
358 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
359 meta_in = &ic->streams[i]->metadata;
365 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
370 if (type_out == 's') {
371 for (i = 0; i < oc->nb_streams; i++) {
372 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
373 meta_out = &oc->streams[i]->metadata;
374 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
379 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
384 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
386 const AVCodecDescriptor *desc;
387 const char *codec_string = encoder ? "encoder" : "decoder";
391 avcodec_find_encoder_by_name(name) :
392 avcodec_find_decoder_by_name(name);
394 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
395 codec = encoder ? avcodec_find_encoder(desc->id) :
396 avcodec_find_decoder(desc->id);
398 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
399 codec_string, codec->name, desc->name);
403 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
406 if (codec->type != type) {
407 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
413 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
415 char *codec_name = NULL;
417 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
419 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
420 st->codec->codec_id = codec->id;
423 return avcodec_find_decoder(st->codec->codec_id);
426 /* Add all the streams from the given input file to the global
427 * list of input streams. */
428 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
432 for (i = 0; i < ic->nb_streams; i++) {
433 AVStream *st = ic->streams[i];
434 AVCodecContext *dec = st->codec;
435 InputStream *ist = av_mallocz(sizeof(*ist));
436 char *framerate = NULL;
441 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
442 input_streams[nb_input_streams - 1] = ist;
445 ist->file_index = nb_input_files;
447 st->discard = AVDISCARD_ALL;
448 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
451 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
453 ist->dec = choose_decoder(o, ic, st);
455 switch (dec->codec_type) {
456 case AVMEDIA_TYPE_VIDEO:
457 ist->resample_height = dec->height;
458 ist->resample_width = dec->width;
459 ist->resample_pix_fmt = dec->pix_fmt;
461 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
462 if (framerate && av_parse_video_rate(&ist->framerate,
464 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
470 case AVMEDIA_TYPE_AUDIO:
471 guess_input_channel_layout(ist);
473 ist->resample_sample_fmt = dec->sample_fmt;
474 ist->resample_sample_rate = dec->sample_rate;
475 ist->resample_channels = dec->channels;
476 ist->resample_channel_layout = dec->channel_layout;
479 case AVMEDIA_TYPE_DATA:
480 case AVMEDIA_TYPE_SUBTITLE:
481 case AVMEDIA_TYPE_ATTACHMENT:
482 case AVMEDIA_TYPE_UNKNOWN:
490 static void assert_file_overwrite(const char *filename)
492 if (!file_overwrite &&
493 (strchr(filename, ':') == NULL || filename[1] == ':' ||
494 av_strstart(filename, "file:", NULL))) {
495 if (avio_check(filename, 0) == 0) {
497 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
500 fprintf(stderr, "Not overwriting - exiting\n");
505 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
512 static void dump_attachment(AVStream *st, const char *filename)
515 AVIOContext *out = NULL;
516 AVDictionaryEntry *e;
518 if (!st->codec->extradata_size) {
519 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
520 nb_input_files - 1, st->index);
523 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
526 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
527 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
531 assert_file_overwrite(filename);
533 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
534 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
539 avio_write(out, st->codec->extradata, st->codec->extradata_size);
544 static int opt_input_file(void *optctx, const char *opt, const char *filename)
546 OptionsContext *o = optctx;
548 AVInputFormat *file_iformat = NULL;
553 int orig_nb_streams; // number of streams before avformat_find_stream_info
556 if (!(file_iformat = av_find_input_format(o->format))) {
557 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
562 if (!strcmp(filename, "-"))
565 using_stdin |= !strncmp(filename, "pipe:", 5) ||
566 !strcmp(filename, "/dev/stdin");
568 /* get default parameters from command line */
569 ic = avformat_alloc_context();
571 print_error(filename, AVERROR(ENOMEM));
574 if (o->nb_audio_sample_rate) {
575 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
576 av_dict_set(&format_opts, "sample_rate", buf, 0);
578 if (o->nb_audio_channels) {
579 /* because we set audio_channels based on both the "ac" and
580 * "channel_layout" options, we need to check that the specified
581 * demuxer actually has the "channels" option before setting it */
582 if (file_iformat && file_iformat->priv_class &&
583 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
584 AV_OPT_SEARCH_FAKE_OBJ)) {
585 snprintf(buf, sizeof(buf), "%d",
586 o->audio_channels[o->nb_audio_channels - 1].u.i);
587 av_dict_set(&format_opts, "channels", buf, 0);
590 if (o->nb_frame_rates) {
591 /* set the format-level framerate option;
592 * this is important for video grabbers, e.g. x11 */
593 if (file_iformat && file_iformat->priv_class &&
594 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
595 AV_OPT_SEARCH_FAKE_OBJ)) {
596 av_dict_set(&format_opts, "framerate",
597 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
600 if (o->nb_frame_sizes) {
601 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
603 if (o->nb_frame_pix_fmts)
604 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
606 ic->flags |= AVFMT_FLAG_NONBLOCK;
607 ic->interrupt_callback = int_cb;
609 /* open the input file with generic libav function */
610 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
612 print_error(filename, err);
615 assert_avoptions(format_opts);
617 /* apply forced codec ids */
618 for (i = 0; i < ic->nb_streams; i++)
619 choose_decoder(o, ic, ic->streams[i]);
621 /* Set AVCodecContext options for avformat_find_stream_info */
622 opts = setup_find_stream_info_opts(ic, codec_opts);
623 orig_nb_streams = ic->nb_streams;
625 /* If not enough info to get the stream parameters, we decode the
626 first frames to get it. (used in mpeg case for example) */
627 ret = avformat_find_stream_info(ic, opts);
629 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
630 avformat_close_input(&ic);
634 timestamp = o->start_time;
635 /* add the stream start time */
636 if (ic->start_time != AV_NOPTS_VALUE)
637 timestamp += ic->start_time;
639 /* if seeking requested, we execute it */
640 if (o->start_time != 0) {
641 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
643 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
644 filename, (double)timestamp / AV_TIME_BASE);
648 /* update the current parameters so that they match the one of the input stream */
649 add_input_streams(o, ic);
651 /* dump the file content */
652 av_dump_format(ic, nb_input_files, filename, 0);
654 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
655 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
658 input_files[nb_input_files - 1]->ctx = ic;
659 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
660 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
661 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
662 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
664 for (i = 0; i < o->nb_dump_attachment; i++) {
667 for (j = 0; j < ic->nb_streams; j++) {
668 AVStream *st = ic->streams[j];
670 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
671 dump_attachment(st, o->dump_attachment[i].u.str);
675 for (i = 0; i < orig_nb_streams; i++)
676 av_dict_free(&opts[i]);
683 static uint8_t *get_line(AVIOContext *s)
689 if (avio_open_dyn_buf(&line) < 0) {
690 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
694 while ((c = avio_r8(s)) && c != '\n')
697 avio_close_dyn_buf(line, &buf);
702 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
706 const char *base[3] = { getenv("AVCONV_DATADIR"),
711 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
715 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
716 i != 1 ? "" : "/.avconv", codec_name, preset_name);
717 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
720 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
721 i != 1 ? "" : "/.avconv", preset_name);
722 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
728 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
730 char *codec_name = NULL;
732 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
734 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
735 NULL, ost->st->codec->codec_type);
736 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
737 } else if (!strcmp(codec_name, "copy"))
738 ost->stream_copy = 1;
740 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
741 ost->st->codec->codec_id = ost->enc->id;
745 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
748 AVStream *st = avformat_new_stream(oc, NULL);
749 int idx = oc->nb_streams - 1, ret = 0;
750 char *bsf = NULL, *next, *codec_tag = NULL;
751 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
753 char *buf = NULL, *arg = NULL, *preset = NULL;
754 AVIOContext *s = NULL;
757 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
761 if (oc->nb_streams - 1 < o->nb_streamid_map)
762 st->id = o->streamid_map[oc->nb_streams - 1];
764 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
765 nb_output_streams + 1);
766 if (!(ost = av_mallocz(sizeof(*ost))))
768 output_streams[nb_output_streams - 1] = ost;
770 ost->file_index = nb_output_files;
773 st->codec->codec_type = type;
774 choose_encoder(o, oc, ost);
776 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st, ost->enc);
779 avcodec_get_context_defaults3(st->codec, ost->enc);
780 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
782 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
783 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
786 if (!buf[0] || buf[0] == '#') {
790 if (!(arg = strchr(buf, '='))) {
791 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
795 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
797 } while (!s->eof_reached);
801 av_log(NULL, AV_LOG_FATAL,
802 "Preset %s specified for stream %d:%d, but could not be opened.\n",
803 preset, ost->file_index, ost->index);
807 ost->max_frames = INT64_MAX;
808 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
810 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
812 if (next = strchr(bsf, ','))
814 if (!(bsfc = av_bitstream_filter_init(bsf))) {
815 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
819 bsfc_prev->next = bsfc;
821 ost->bitstream_filters = bsfc;
827 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
829 uint32_t tag = strtol(codec_tag, &next, 0);
831 tag = AV_RL32(codec_tag);
832 st->codec->codec_tag = tag;
835 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
837 st->codec->flags |= CODEC_FLAG_QSCALE;
838 st->codec->global_quality = FF_QP2LAMBDA * qscale;
841 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
842 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
844 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
846 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
851 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
861 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
868 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
872 AVCodecContext *video_enc;
874 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
876 video_enc = st->codec;
878 if (!ost->stream_copy) {
879 const char *p = NULL;
880 char *frame_rate = NULL, *frame_size = NULL;
881 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
882 char *intra_matrix = NULL, *inter_matrix = NULL;
883 const char *filters = "null";
887 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
888 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
889 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
893 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
894 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
895 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
899 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
900 if (frame_aspect_ratio)
901 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
903 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
904 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
905 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
908 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
910 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
912 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
913 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
916 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
918 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
920 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
921 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
924 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
927 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
928 for (i = 0; p; i++) {
930 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
932 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
935 video_enc->rc_override =
936 av_realloc(video_enc->rc_override,
937 sizeof(RcOverride) * (i + 1));
938 video_enc->rc_override[i].start_frame = start;
939 video_enc->rc_override[i].end_frame = end;
941 video_enc->rc_override[i].qscale = q;
942 video_enc->rc_override[i].quality_factor = 1.0;
945 video_enc->rc_override[i].qscale = 0;
946 video_enc->rc_override[i].quality_factor = -q/100.0;
951 video_enc->rc_override_count = i;
952 if (!video_enc->rc_initial_buffer_occupancy)
953 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
954 video_enc->intra_dc_precision = intra_dc_precision - 8;
957 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
960 video_enc->flags |= CODEC_FLAG_PASS1;
962 video_enc->flags |= CODEC_FLAG_PASS2;
966 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
967 if (ost->logfile_prefix &&
968 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
971 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
972 if (ost->forced_keyframes)
973 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
975 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
977 ost->top_field_first = -1;
978 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
980 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
981 ost->avfilter = av_strdup(filters);
983 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
989 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
993 AVCodecContext *audio_enc;
995 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
998 audio_enc = st->codec;
999 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1001 if (!ost->stream_copy) {
1002 char *sample_fmt = NULL;
1003 const char *filters = "anull";
1005 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1007 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1009 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1010 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1014 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1016 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
1017 ost->avfilter = av_strdup(filters);
1023 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1027 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1028 if (!ost->stream_copy) {
1029 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1036 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1038 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1039 ost->stream_copy = 1;
1043 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1047 AVCodecContext *subtitle_enc;
1049 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1051 subtitle_enc = st->codec;
1053 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1058 /* arg format is "output-stream-index:streamid-value". */
1059 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1061 OptionsContext *o = optctx;
1066 av_strlcpy(idx_str, arg, sizeof(idx_str));
1067 p = strchr(idx_str, ':');
1069 av_log(NULL, AV_LOG_FATAL,
1070 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1075 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1076 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1077 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1081 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1083 AVFormatContext *is = ifile->ctx;
1084 AVFormatContext *os = ofile->ctx;
1088 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1090 return AVERROR(ENOMEM);
1093 for (i = 0; i < is->nb_chapters; i++) {
1094 AVChapter *in_ch = is->chapters[i], *out_ch;
1095 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
1096 AV_TIME_BASE_Q, in_ch->time_base);
1097 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1098 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1101 if (in_ch->end < ts_off)
1103 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1106 out_ch = av_mallocz(sizeof(AVChapter));
1108 return AVERROR(ENOMEM);
1110 out_ch->id = in_ch->id;
1111 out_ch->time_base = in_ch->time_base;
1112 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1113 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1116 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1118 os->chapters[os->nb_chapters++] = out_ch;
1123 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1124 AVFormatContext *oc)
1128 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1129 ofilter->out_tmp->pad_idx)) {
1130 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1131 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1133 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1138 ost->source_index = -1;
1139 ost->filter = ofilter;
1143 if (ost->stream_copy) {
1144 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1145 "which is fed from a complex filtergraph. Filtering and streamcopy "
1146 "cannot be used together.\n", ost->file_index, ost->index);
1150 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1151 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1154 avfilter_inout_free(&ofilter->out_tmp);
1157 static int configure_complex_filters(void)
1161 for (i = 0; i < nb_filtergraphs; i++)
1162 if (!filtergraphs[i]->graph &&
1163 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1168 void opt_output_file(void *optctx, const char *filename)
1170 OptionsContext *o = optctx;
1171 AVFormatContext *oc;
1173 AVOutputFormat *file_oformat;
1177 if (configure_complex_filters() < 0) {
1178 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1182 if (!strcmp(filename, "-"))
1185 oc = avformat_alloc_context();
1187 print_error(filename, AVERROR(ENOMEM));
1192 file_oformat = av_guess_format(o->format, NULL, NULL);
1193 if (!file_oformat) {
1194 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1198 file_oformat = av_guess_format(NULL, filename, NULL);
1199 if (!file_oformat) {
1200 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1206 oc->oformat = file_oformat;
1207 oc->interrupt_callback = int_cb;
1208 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1210 /* create streams for all unlabeled output pads */
1211 for (i = 0; i < nb_filtergraphs; i++) {
1212 FilterGraph *fg = filtergraphs[i];
1213 for (j = 0; j < fg->nb_outputs; j++) {
1214 OutputFilter *ofilter = fg->outputs[j];
1216 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1219 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1220 ofilter->out_tmp->pad_idx)) {
1221 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1222 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1223 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1225 init_output_filter(ofilter, o, oc);
1229 if (!o->nb_stream_maps) {
1230 /* pick the "best" stream of each type */
1231 #define NEW_STREAM(type, index)\
1233 ost = new_ ## type ## _stream(o, oc);\
1234 ost->source_index = index;\
1235 ost->sync_ist = input_streams[index];\
1236 input_streams[index]->discard = 0;\
1237 input_streams[index]->st->discard = AVDISCARD_NONE;\
1240 /* video: highest resolution */
1241 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1242 int area = 0, idx = -1;
1243 for (i = 0; i < nb_input_streams; i++) {
1244 ist = input_streams[i];
1245 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1246 ist->st->codec->width * ist->st->codec->height > area) {
1247 area = ist->st->codec->width * ist->st->codec->height;
1251 NEW_STREAM(video, idx);
1254 /* audio: most channels */
1255 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1256 int channels = 0, idx = -1;
1257 for (i = 0; i < nb_input_streams; i++) {
1258 ist = input_streams[i];
1259 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1260 ist->st->codec->channels > channels) {
1261 channels = ist->st->codec->channels;
1265 NEW_STREAM(audio, idx);
1268 /* subtitles: pick first */
1269 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1270 for (i = 0; i < nb_input_streams; i++)
1271 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1272 NEW_STREAM(subtitle, i);
1276 /* do something with data? */
1278 for (i = 0; i < o->nb_stream_maps; i++) {
1279 StreamMap *map = &o->stream_maps[i];
1284 if (map->linklabel) {
1286 OutputFilter *ofilter = NULL;
1289 for (j = 0; j < nb_filtergraphs; j++) {
1290 fg = filtergraphs[j];
1291 for (k = 0; k < fg->nb_outputs; k++) {
1292 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1293 if (out && !strcmp(out->name, map->linklabel)) {
1294 ofilter = fg->outputs[k];
1301 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1302 "in any defined filter graph.\n", map->linklabel);
1305 init_output_filter(ofilter, o, oc);
1307 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1308 switch (ist->st->codec->codec_type) {
1309 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1310 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1311 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1312 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1313 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1315 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1316 map->file_index, map->stream_index);
1320 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1321 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1322 map->sync_stream_index];
1324 ist->st->discard = AVDISCARD_NONE;
1329 /* handle attached files */
1330 for (i = 0; i < o->nb_attachments; i++) {
1332 uint8_t *attachment;
1336 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1337 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1341 if ((len = avio_size(pb)) <= 0) {
1342 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1346 if (!(attachment = av_malloc(len))) {
1347 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1351 avio_read(pb, attachment, len);
1353 ost = new_attachment_stream(o, oc);
1354 ost->stream_copy = 0;
1355 ost->source_index = -1;
1356 ost->attachment_filename = o->attachments[i];
1357 ost->st->codec->extradata = attachment;
1358 ost->st->codec->extradata_size = len;
1360 p = strrchr(o->attachments[i], '/');
1361 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1365 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
1366 if (!(output_files[nb_output_files - 1] = av_mallocz(sizeof(*output_files[0]))))
1369 output_files[nb_output_files - 1]->ctx = oc;
1370 output_files[nb_output_files - 1]->ost_index = nb_output_streams - oc->nb_streams;
1371 output_files[nb_output_files - 1]->recording_time = o->recording_time;
1372 if (o->recording_time != INT64_MAX)
1373 oc->duration = o->recording_time;
1374 output_files[nb_output_files - 1]->start_time = o->start_time;
1375 output_files[nb_output_files - 1]->limit_filesize = o->limit_filesize;
1376 output_files[nb_output_files - 1]->shortest = o->shortest;
1377 av_dict_copy(&output_files[nb_output_files - 1]->opts, format_opts, 0);
1379 /* check filename in case of an image number is expected */
1380 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1381 if (!av_filename_number_test(oc->filename)) {
1382 print_error(oc->filename, AVERROR(EINVAL));
1387 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1388 /* test if it already exists to avoid losing precious files */
1389 assert_file_overwrite(filename);
1392 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1393 &oc->interrupt_callback,
1394 &output_files[nb_output_files - 1]->opts)) < 0) {
1395 print_error(filename, err);
1400 if (o->mux_preload) {
1402 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1403 av_dict_set(&output_files[nb_output_files - 1]->opts, "preload", buf, 0);
1405 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1406 oc->flags |= AVFMT_FLAG_NONBLOCK;
1409 for (i = 0; i < o->nb_metadata_map; i++) {
1411 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1413 if (in_file_index < 0)
1415 if (in_file_index >= nb_input_files) {
1416 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1419 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, input_files[in_file_index]->ctx, o);
1423 if (o->chapters_input_file >= nb_input_files) {
1424 if (o->chapters_input_file == INT_MAX) {
1425 /* copy chapters from the first input file that has them*/
1426 o->chapters_input_file = -1;
1427 for (i = 0; i < nb_input_files; i++)
1428 if (input_files[i]->ctx->nb_chapters) {
1429 o->chapters_input_file = i;
1433 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1434 o->chapters_input_file);
1438 if (o->chapters_input_file >= 0)
1439 copy_chapters(input_files[o->chapters_input_file], output_files[nb_output_files - 1],
1440 !o->metadata_chapters_manual);
1442 /* copy global metadata by default */
1443 if (!o->metadata_global_manual && nb_input_files)
1444 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1445 AV_DICT_DONT_OVERWRITE);
1446 if (!o->metadata_streams_manual)
1447 for (i = output_files[nb_output_files - 1]->ost_index; i < nb_output_streams; i++) {
1449 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1451 ist = input_streams[output_streams[i]->source_index];
1452 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1455 /* process manually set metadata */
1456 for (i = 0; i < o->nb_metadata; i++) {
1459 const char *stream_spec;
1460 int index = 0, j, ret;
1462 val = strchr(o->metadata[i].u.str, '=');
1464 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1465 o->metadata[i].u.str);
1470 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1472 for (j = 0; j < oc->nb_streams; j++) {
1473 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1474 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1485 if (index < 0 || index >= oc->nb_chapters) {
1486 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1489 m = &oc->chapters[index]->metadata;
1492 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
1495 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
1502 static int opt_target(void *optctx, const char *opt, const char *arg)
1504 OptionsContext *o = optctx;
1505 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
1506 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
1508 if (!strncmp(arg, "pal-", 4)) {
1511 } else if (!strncmp(arg, "ntsc-", 5)) {
1514 } else if (!strncmp(arg, "film-", 5)) {
1518 /* Try to determine PAL/NTSC by peeking in the input files */
1519 if (nb_input_files) {
1521 for (j = 0; j < nb_input_files; j++) {
1522 for (i = 0; i < input_files[j]->nb_streams; i++) {
1523 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
1524 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
1526 fr = c->time_base.den * 1000 / c->time_base.num;
1530 } else if ((fr == 29970) || (fr == 23976)) {
1535 if (norm != UNKNOWN)
1539 if (norm != UNKNOWN)
1540 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
1543 if (norm == UNKNOWN) {
1544 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
1545 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
1546 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
1550 if (!strcmp(arg, "vcd")) {
1551 opt_video_codec(o, "c:v", "mpeg1video");
1552 opt_audio_codec(o, "c:a", "mp2");
1553 parse_option(o, "f", "vcd", options);
1555 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
1556 parse_option(o, "r", frame_rates[norm], options);
1557 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1559 opt_default(NULL, "b", "1150000");
1560 opt_default(NULL, "maxrate", "1150000");
1561 opt_default(NULL, "minrate", "1150000");
1562 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
1564 opt_default(NULL, "b:a", "224000");
1565 parse_option(o, "ar", "44100", options);
1566 parse_option(o, "ac", "2", options);
1568 opt_default(NULL, "packetsize", "2324");
1569 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
1571 /* We have to offset the PTS, so that it is consistent with the SCR.
1572 SCR starts at 36000, but the first two packs contain only padding
1573 and the first pack from the other stream, respectively, may also have
1574 been written before.
1575 So the real data starts at SCR 36000+3*1200. */
1576 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
1577 } else if (!strcmp(arg, "svcd")) {
1579 opt_video_codec(o, "c:v", "mpeg2video");
1580 opt_audio_codec(o, "c:a", "mp2");
1581 parse_option(o, "f", "svcd", options);
1583 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
1584 parse_option(o, "r", frame_rates[norm], options);
1585 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1587 opt_default(NULL, "b", "2040000");
1588 opt_default(NULL, "maxrate", "2516000");
1589 opt_default(NULL, "minrate", "0"); // 1145000;
1590 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
1591 opt_default(NULL, "flags", "+scan_offset");
1594 opt_default(NULL, "b:a", "224000");
1595 parse_option(o, "ar", "44100", options);
1597 opt_default(NULL, "packetsize", "2324");
1599 } else if (!strcmp(arg, "dvd")) {
1601 opt_video_codec(o, "c:v", "mpeg2video");
1602 opt_audio_codec(o, "c:a", "ac3");
1603 parse_option(o, "f", "dvd", options);
1605 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1606 parse_option(o, "r", frame_rates[norm], options);
1607 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1609 opt_default(NULL, "b", "6000000");
1610 opt_default(NULL, "maxrate", "9000000");
1611 opt_default(NULL, "minrate", "0"); // 1500000;
1612 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
1614 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
1615 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
1617 opt_default(NULL, "b:a", "448000");
1618 parse_option(o, "ar", "48000", options);
1620 } else if (!strncmp(arg, "dv", 2)) {
1622 parse_option(o, "f", "dv", options);
1624 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1625 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
1626 norm == PAL ? "yuv420p" : "yuv411p", options);
1627 parse_option(o, "r", frame_rates[norm], options);
1629 parse_option(o, "ar", "48000", options);
1630 parse_option(o, "ac", "2", options);
1633 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
1634 return AVERROR(EINVAL);
1639 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
1641 av_free (vstats_filename);
1642 vstats_filename = av_strdup (arg);
1646 static int opt_vstats(void *optctx, const char *opt, const char *arg)
1649 time_t today2 = time(NULL);
1650 struct tm *today = localtime(&today2);
1652 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
1654 return opt_vstats_file(NULL, opt, filename);
1657 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
1659 OptionsContext *o = optctx;
1660 return parse_option(o, "frames:v", arg, options);
1663 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
1665 OptionsContext *o = optctx;
1666 return parse_option(o, "frames:a", arg, options);
1669 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
1671 OptionsContext *o = optctx;
1672 return parse_option(o, "frames:d", arg, options);
1675 static int opt_video_tag(void *optctx, const char *opt, const char *arg)
1677 OptionsContext *o = optctx;
1678 return parse_option(o, "tag:v", arg, options);
1681 static int opt_audio_tag(void *optctx, const char *opt, const char *arg)
1683 OptionsContext *o = optctx;
1684 return parse_option(o, "tag:a", arg, options);
1687 static int opt_subtitle_tag(void *optctx, const char *opt, const char *arg)
1689 OptionsContext *o = optctx;
1690 return parse_option(o, "tag:s", arg, options);
1693 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
1695 OptionsContext *o = optctx;
1696 return parse_option(o, "filter:v", arg, options);
1699 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
1701 OptionsContext *o = optctx;
1702 return parse_option(o, "filter:a", arg, options);
1705 static int opt_vsync(void *optctx, const char *opt, const char *arg)
1707 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
1708 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
1709 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
1711 if (video_sync_method == VSYNC_AUTO)
1712 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
1716 static int opt_deinterlace(void *optctx, const char *opt, const char *arg)
1718 av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
1723 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
1725 int flags = av_parse_cpu_flags(arg);
1730 av_set_cpu_flags_mask(flags);
1734 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
1736 OptionsContext *o = optctx;
1737 char layout_str[32];
1740 int ret, channels, ac_str_size;
1743 layout = av_get_channel_layout(arg);
1745 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
1746 return AVERROR(EINVAL);
1748 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
1749 ret = opt_default(NULL, opt, layout_str);
1753 /* set 'ac' option based on channel layout */
1754 channels = av_get_channel_layout_nb_channels(layout);
1755 snprintf(layout_str, sizeof(layout_str), "%d", channels);
1756 stream_str = strchr(opt, ':');
1757 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
1758 ac_str = av_mallocz(ac_str_size);
1760 return AVERROR(ENOMEM);
1761 av_strlcpy(ac_str, "ac", 3);
1763 av_strlcat(ac_str, stream_str, ac_str_size);
1764 ret = parse_option(o, ac_str, layout_str, options);
1770 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
1772 OptionsContext *o = optctx;
1773 return parse_option(o, "q:a", arg, options);
1776 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
1778 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
1779 &nb_filtergraphs, nb_filtergraphs + 1);
1780 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
1781 return AVERROR(ENOMEM);
1782 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
1783 filtergraphs[nb_filtergraphs - 1]->graph_desc = arg;
1787 void show_help_default(const char *opt, const char *arg)
1789 /* per-file options have at least one of those set */
1790 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
1791 int show_advanced = 0, show_avoptions = 0;
1794 if (!strcmp(opt, "long"))
1796 else if (!strcmp(opt, "full"))
1797 show_advanced = show_avoptions = 1;
1799 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
1804 printf("Getting help:\n"
1805 " -h -- print basic options\n"
1806 " -h long -- print more options\n"
1807 " -h full -- print all options (including all format and codec specific options, very long)\n"
1808 " See man %s for detailed description of the options.\n"
1809 "\n", program_name);
1811 show_help_options(options, "Print help / information / capabilities:",
1814 show_help_options(options, "Global options (affect whole program "
1815 "instead of just one file:",
1816 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
1818 show_help_options(options, "Advanced global options:", OPT_EXPERT,
1819 per_file | OPT_EXIT, 0);
1821 show_help_options(options, "Per-file main options:", 0,
1822 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
1823 OPT_EXIT, per_file);
1825 show_help_options(options, "Advanced per-file options:",
1826 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
1828 show_help_options(options, "Video options:",
1829 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
1831 show_help_options(options, "Advanced Video options:",
1832 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
1834 show_help_options(options, "Audio options:",
1835 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
1837 show_help_options(options, "Advanced Audio options:",
1838 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
1839 show_help_options(options, "Subtitle options:",
1840 OPT_SUBTITLE, 0, 0);
1843 if (show_avoptions) {
1844 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
1845 show_help_children(avcodec_get_class(), flags);
1846 show_help_children(avformat_get_class(), flags);
1847 show_help_children(sws_get_class(), flags);
1851 void show_usage(void)
1853 printf("Hyper fast Audio and Video encoder\n");
1854 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
1859 #define OFFSET(x) offsetof(OptionsContext, x)
1860 const OptionDef options[] = {
1862 #include "cmdutils_common_opts.h"
1863 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, { .off = OFFSET(format) },
1864 "force format", "fmt" },
1865 { "i", HAS_ARG | OPT_PERFILE, { .func_arg = opt_input_file },
1866 "input file name", "filename" },
1867 { "y", OPT_BOOL, { &file_overwrite },
1868 "overwrite output files" },
1869 { "c", HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(codec_names) },
1870 "codec name", "codec" },
1871 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(codec_names) },
1872 "codec name", "codec" },
1873 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(presets) },
1874 "preset name", "preset" },
1875 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE, { .func_arg = opt_map },
1876 "set input stream mapping",
1877 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
1878 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(metadata_map) },
1879 "set metadata information of outfile from infile",
1880 "outfile[,metadata]:infile[,metadata]" },
1881 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(chapters_input_file) },
1882 "set chapters mapping", "input_file_index" },
1883 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, { .off = OFFSET(recording_time) },
1884 "record or transcode \"duration\" seconds of audio/video",
1886 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, { .off = OFFSET(limit_filesize) },
1887 "set the limit file size in bytes", "limit_size" },
1888 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, { .off = OFFSET(start_time) },
1889 "set the start time offset", "time_off" },
1890 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_EXPERT,{ .off = OFFSET(input_ts_offset) },
1891 "set the input ts offset", "time_off" },
1892 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC | OPT_EXPERT,{ .off = OFFSET(ts_scale) },
1893 "set the input ts scale", "scale" },
1894 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(metadata) },
1895 "add metadata", "string=string" },
1896 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT, { .func_arg = opt_data_frames },
1897 "set the number of data frames to record", "number" },
1898 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
1899 "add timings for benchmarking" },
1900 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
1901 "set max runtime in seconds", "limit" },
1902 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
1903 "dump each input packet" },
1904 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
1905 "when dumping packets, also dump the payload" },
1906 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(rate_emu) },
1907 "read input at native frame rate", "" },
1908 { "target", HAS_ARG | OPT_PERFILE, { .func_arg = opt_target },
1909 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
1910 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
1911 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
1912 "video sync method", "" },
1913 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
1914 "audio sync method", "" },
1915 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
1916 "audio drift threshold", "threshold" },
1917 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
1918 "copy timestamps" },
1919 { "copytb", OPT_BOOL | OPT_EXPERT, { ©_tb },
1920 "copy input stream time base when stream copying" },
1921 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(shortest) },
1922 "finish encoding within shortest input" },
1923 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
1924 "timestamp discontinuity delta threshold", "threshold" },
1925 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
1926 "exit on error", "error" },
1927 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, { .off = OFFSET(copy_initial_nonkeyframes) },
1928 "copy initial non-keyframes" },
1929 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, { .off = OFFSET(max_frames) },
1930 "set the number of frames to record", "number" },
1931 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC | OPT_EXPERT,{ .off = OFFSET(codec_tags) },
1932 "force codec tag/fourcc", "fourcc/tag" },
1933 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC,{ .off = OFFSET(qscale) },
1934 "use fixed quality scale (VBR)", "q" },
1935 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC,{ .off = OFFSET(qscale) },
1936 "use fixed quality scale (VBR)", "q" },
1937 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(filters) },
1938 "set stream filterchain", "filter_list" },
1939 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
1940 "create a complex filtergraph", "graph_description" },
1941 { "stats", OPT_BOOL, { &print_stats },
1942 "print progress report during encoding", },
1943 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT, { .func_arg = opt_attach },
1944 "add an attachment to the output file", "filename" },
1945 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |OPT_EXPERT,{ .off = OFFSET(dump_attachment) },
1946 "extract an attachment into a file", "filename" },
1947 { "cpuflags", HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },
1948 "set CPU flags mask", "mask" },
1951 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_video_frames },
1952 "set the number of video frames to record", "number" },
1953 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(frame_rates) },
1954 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
1955 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(frame_sizes) },
1956 "set frame size (WxH or abbreviation)", "size" },
1957 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC, { .off = OFFSET(frame_aspect_ratios) },
1958 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
1959 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC, { .off = OFFSET(frame_pix_fmts) },
1960 "set pixel format", "format" },
1961 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET, { .off = OFFSET(video_disable) },
1963 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
1964 "discard threshold", "n" },
1965 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC, { .off = OFFSET(rc_overrides) },
1966 "rate control override for specific intervals", "override" },
1967 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_video_codec },
1968 "force video codec ('copy' to copy stream)", "codec" },
1969 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT, { .off = OFFSET(pass) },
1970 "select the pass number (1 or 2)", "n" },
1971 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC, { .off = OFFSET(passlogfiles) },
1972 "select two pass log file name prefix", "prefix" },
1973 { "deinterlace", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_deinterlace },
1974 "this option is deprecated, use the yadif filter instead" },
1975 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
1976 "dump video coding statistics to file" },
1977 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
1978 "dump video coding statistics to file", "file" },
1979 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_video_filters },
1980 "video filters", "filter list" },
1981 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC, { .off = OFFSET(intra_matrices) },
1982 "specify intra matrix coeffs", "matrix" },
1983 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC, { .off = OFFSET(inter_matrices) },
1984 "specify inter matrix coeffs", "matrix" },
1985 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC, { .off = OFFSET(top_field_first) },
1986 "top=1/bottom=0/auto=-1 field first", "" },
1987 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
1988 "intra_dc_precision", "precision" },
1989 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE, { .func_arg = opt_video_tag },
1990 "force video tag/fourcc", "fourcc/tag" },
1991 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
1992 "show QP histogram" },
1993 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC, { .off = OFFSET(force_fps) },
1994 "force the selected framerate, disable the best supported framerate selection" },
1995 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE, { .func_arg = opt_streamid },
1996 "set the value of an outfile streamid", "streamIndex:value" },
1997 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_SPEC,
1998 { .off = OFFSET(forced_key_frames) }, "force key frames at specified timestamps", "timestamps" },
2001 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_audio_frames },
2002 "set the number of audio frames to record", "number" },
2003 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_audio_qscale },
2004 "set audio quality (codec-specific)", "quality", },
2005 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC, { .off = OFFSET(audio_sample_rate) },
2006 "set audio sampling rate (in Hz)", "rate" },
2007 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC, { .off = OFFSET(audio_channels) },
2008 "set number of audio channels", "channels" },
2009 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET, { .off = OFFSET(audio_disable) },
2011 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_audio_codec },
2012 "force audio codec ('copy' to copy stream)", "codec" },
2013 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE, { .func_arg = opt_audio_tag },
2014 "force audio tag/fourcc", "fourcc/tag" },
2015 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2016 "change audio volume (256=normal)" , "volume" },
2017 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_STRING, { .off = OFFSET(sample_fmts) },
2018 "set sample format", "format" },
2019 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE, { .func_arg = opt_channel_layout },
2020 "set channel layout", "layout" },
2021 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE, { .func_arg = opt_audio_filters },
2022 "audio filters", "filter list" },
2024 /* subtitle options */
2025 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET, { .off = OFFSET(subtitle_disable) },
2026 "disable subtitle" },
2027 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE, { .func_arg = opt_subtitle_codec },
2028 "force subtitle codec ('copy' to copy stream)", "codec" },
2029 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE, { .func_arg = opt_subtitle_tag }
2030 , "force subtitle tag/fourcc", "fourcc/tag" },
2033 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2036 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(mux_max_delay) },
2037 "set the maximum demux-decode delay", "seconds" },
2038 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, { .off = OFFSET(mux_preload) },
2039 "set the initial demux-decode delay", "seconds" },
2041 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT, { .off = OFFSET(bitstream_filters) },
2042 "A comma-separated list of bitstream filters", "bitstream_filters" },
2044 /* data codec support */
2045 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT, { .func_arg = opt_data_codec },
2046 "force data codec ('copy' to copy stream)", "codec" },
2048 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default },
2049 "generic catch all option", "" },