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 *pass_logfilename_prefix = NULL;
58 char *vstats_filename;
60 float audio_drift_threshold = 0.1;
61 float dts_delta_threshold = 10;
63 int audio_volume = 256;
64 int audio_sync_method = 0;
65 int video_sync_method = VSYNC_AUTO;
66 int do_deinterlace = 0;
73 int exit_on_error = 0;
78 static int file_overwrite = 0;
79 static int video_discard = 0;
80 static int intra_dc_precision = 8;
81 static int do_pass = 0;
82 static int using_stdin = 0;
83 static int input_sync;
85 void reset_options(OptionsContext *o)
87 const OptionDef *po = options;
90 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
92 void *dst = (uint8_t*)o + po->u.off;
94 if (po->flags & OPT_SPEC) {
95 SpecifierOpt **so = dst;
96 int i, *count = (int*)(so + 1);
97 for (i = 0; i < *count; i++) {
98 av_freep(&(*so)[i].specifier);
99 if (po->flags & OPT_STRING)
100 av_freep(&(*so)[i].u.str);
104 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
109 for (i = 0; i < o->nb_stream_maps; i++)
110 av_freep(&o->stream_maps[i].linklabel);
111 av_freep(&o->stream_maps);
112 av_freep(&o->meta_data_maps);
113 av_freep(&o->streamid_map);
115 memset(o, 0, sizeof(*o));
117 o->mux_max_delay = 0.7;
118 o->recording_time = INT64_MAX;
119 o->limit_filesize = UINT64_MAX;
120 o->chapters_input_file = INT_MAX;
127 static double parse_frame_aspect_ratio(const char *arg)
134 p = strchr(arg, ':');
136 x = strtol(arg, &end, 10);
138 y = strtol(end + 1, &end, 10);
140 ar = (double)x / (double)y;
142 ar = strtod(arg, NULL);
145 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
151 static int opt_audio_codec(OptionsContext *o, const char *opt, const char *arg)
153 return parse_option(o, "codec:a", arg, options);
156 static int opt_video_codec(OptionsContext *o, const char *opt, const char *arg)
158 return parse_option(o, "codec:v", arg, options);
161 static int opt_subtitle_codec(OptionsContext *o, const char *opt, const char *arg)
163 return parse_option(o, "codec:s", arg, options);
166 static int opt_data_codec(OptionsContext *o, const char *opt, const char *arg)
168 return parse_option(o, "codec:d", arg, options);
171 static int opt_map(OptionsContext *o, const char *opt, const char *arg)
174 int i, negative = 0, file_idx;
175 int sync_file_idx = -1, sync_stream_idx;
183 map = av_strdup(arg);
185 /* parse sync stream first, just pick first matching stream */
186 if (sync = strchr(map, ',')) {
188 sync_file_idx = strtol(sync + 1, &sync, 0);
189 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
190 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
195 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
196 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
197 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
201 if (i == input_files[sync_file_idx]->nb_streams) {
202 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
203 "match any streams.\n", arg);
210 /* this mapping refers to lavfi output */
211 const char *c = map + 1;
212 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
213 &o->nb_stream_maps, o->nb_stream_maps + 1);
214 m = &o->stream_maps[o->nb_stream_maps - 1];
215 m->linklabel = av_get_token(&c, "]");
217 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
221 file_idx = strtol(map, &p, 0);
222 if (file_idx >= nb_input_files || file_idx < 0) {
223 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
227 /* disable some already defined maps */
228 for (i = 0; i < o->nb_stream_maps; i++) {
229 m = &o->stream_maps[i];
230 if (file_idx == m->file_index &&
231 check_stream_specifier(input_files[m->file_index]->ctx,
232 input_files[m->file_index]->ctx->streams[m->stream_index],
233 *p == ':' ? p + 1 : p) > 0)
237 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
238 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
239 *p == ':' ? p + 1 : p) <= 0)
241 o->stream_maps = grow_array(o->stream_maps, sizeof(*o->stream_maps),
242 &o->nb_stream_maps, o->nb_stream_maps + 1);
243 m = &o->stream_maps[o->nb_stream_maps - 1];
245 m->file_index = file_idx;
248 if (sync_file_idx >= 0) {
249 m->sync_file_index = sync_file_idx;
250 m->sync_stream_index = sync_stream_idx;
252 m->sync_file_index = file_idx;
253 m->sync_stream_index = i;
259 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
267 static int opt_attach(OptionsContext *o, const char *opt, const char *arg)
269 o->attachments = grow_array(o->attachments, sizeof(*o->attachments),
270 &o->nb_attachments, o->nb_attachments + 1);
271 o->attachments[o->nb_attachments - 1] = arg;
276 * Parse a metadata specifier in arg.
277 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
278 * @param index for type c/p, chapter/program index is written here
279 * @param stream_spec for type s, the stream specifier is written here
281 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
289 if (*(++arg) && *arg != ':') {
290 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
293 *stream_spec = *arg == ':' ? arg + 1 : "";
298 *index = strtol(++arg, NULL, 0);
301 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
308 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
310 AVDictionary **meta_in = NULL;
311 AVDictionary **meta_out;
313 char type_in, type_out;
314 const char *istream_spec = NULL, *ostream_spec = NULL;
315 int idx_in = 0, idx_out = 0;
317 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
318 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
320 if (type_in == 'g' || type_out == 'g')
321 o->metadata_global_manual = 1;
322 if (type_in == 's' || type_out == 's')
323 o->metadata_streams_manual = 1;
324 if (type_in == 'c' || type_out == 'c')
325 o->metadata_chapters_manual = 1;
327 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
328 if ((index) < 0 || (index) >= (nb_elems)) {\
329 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
334 #define SET_DICT(type, meta, context, index)\
337 meta = &context->metadata;\
340 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
341 meta = &context->chapters[index]->metadata;\
344 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
345 meta = &context->programs[index]->metadata;\
347 default: av_assert0(0);\
350 SET_DICT(type_in, meta_in, ic, idx_in);
351 SET_DICT(type_out, meta_out, oc, idx_out);
353 /* for input streams choose first matching stream */
354 if (type_in == 's') {
355 for (i = 0; i < ic->nb_streams; i++) {
356 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
357 meta_in = &ic->streams[i]->metadata;
363 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
368 if (type_out == 's') {
369 for (i = 0; i < oc->nb_streams; i++) {
370 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
371 meta_out = &oc->streams[i]->metadata;
372 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
377 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
382 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
384 const char *codec_string = encoder ? "encoder" : "decoder";
388 avcodec_find_encoder_by_name(name) :
389 avcodec_find_decoder_by_name(name);
391 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
394 if (codec->type != type) {
395 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
401 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
403 char *codec_name = NULL;
405 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
407 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
408 st->codec->codec_id = codec->id;
411 return avcodec_find_decoder(st->codec->codec_id);
415 * Add all the streams from the given input file to the global
416 * list of input streams.
418 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
422 for (i = 0; i < ic->nb_streams; i++) {
423 AVStream *st = ic->streams[i];
424 AVCodecContext *dec = st->codec;
425 InputStream *ist = av_mallocz(sizeof(*ist));
426 char *framerate = NULL;
431 input_streams = grow_array(input_streams, sizeof(*input_streams), &nb_input_streams, nb_input_streams + 1);
432 input_streams[nb_input_streams - 1] = ist;
435 ist->file_index = nb_input_files;
437 st->discard = AVDISCARD_ALL;
438 ist->opts = filter_codec_opts(codec_opts, ist->st->codec->codec_id, ic, st, NULL);
441 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
443 ist->dec = choose_decoder(o, ic, st);
445 switch (dec->codec_type) {
446 case AVMEDIA_TYPE_VIDEO:
447 ist->resample_height = dec->height;
448 ist->resample_width = dec->width;
449 ist->resample_pix_fmt = dec->pix_fmt;
451 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
452 if (framerate && av_parse_video_rate(&ist->framerate,
454 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
460 case AVMEDIA_TYPE_AUDIO:
461 guess_input_channel_layout(ist);
463 ist->resample_sample_fmt = dec->sample_fmt;
464 ist->resample_sample_rate = dec->sample_rate;
465 ist->resample_channels = dec->channels;
466 ist->resample_channel_layout = dec->channel_layout;
469 case AVMEDIA_TYPE_DATA:
470 case AVMEDIA_TYPE_SUBTITLE:
471 case AVMEDIA_TYPE_ATTACHMENT:
472 case AVMEDIA_TYPE_UNKNOWN:
480 static void assert_file_overwrite(const char *filename)
482 if (!file_overwrite &&
483 (strchr(filename, ':') == NULL || filename[1] == ':' ||
484 av_strstart(filename, "file:", NULL))) {
485 if (avio_check(filename, 0) == 0) {
487 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
490 fprintf(stderr, "Not overwriting - exiting\n");
495 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
502 static void dump_attachment(AVStream *st, const char *filename)
505 AVIOContext *out = NULL;
506 AVDictionaryEntry *e;
508 if (!st->codec->extradata_size) {
509 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
510 nb_input_files - 1, st->index);
513 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
516 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
517 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
521 assert_file_overwrite(filename);
523 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
524 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
529 avio_write(out, st->codec->extradata, st->codec->extradata_size);
534 static int opt_input_file(OptionsContext *o, const char *opt, const char *filename)
537 AVInputFormat *file_iformat = NULL;
542 int orig_nb_streams; // number of streams before avformat_find_stream_info
545 if (!(file_iformat = av_find_input_format(o->format))) {
546 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
551 if (!strcmp(filename, "-"))
554 using_stdin |= !strncmp(filename, "pipe:", 5) ||
555 !strcmp(filename, "/dev/stdin");
557 /* get default parameters from command line */
558 ic = avformat_alloc_context();
560 print_error(filename, AVERROR(ENOMEM));
563 if (o->nb_audio_sample_rate) {
564 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
565 av_dict_set(&format_opts, "sample_rate", buf, 0);
567 if (o->nb_audio_channels) {
568 /* because we set audio_channels based on both the "ac" and
569 * "channel_layout" options, we need to check that the specified
570 * demuxer actually has the "channels" option before setting it */
571 if (file_iformat && file_iformat->priv_class &&
572 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
573 AV_OPT_SEARCH_FAKE_OBJ)) {
574 snprintf(buf, sizeof(buf), "%d",
575 o->audio_channels[o->nb_audio_channels - 1].u.i);
576 av_dict_set(&format_opts, "channels", buf, 0);
579 if (o->nb_frame_rates) {
580 /* set the format-level framerate option;
581 * this is important for video grabbers, e.g. x11 */
582 if (file_iformat && file_iformat->priv_class &&
583 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
584 AV_OPT_SEARCH_FAKE_OBJ)) {
585 av_dict_set(&format_opts, "framerate",
586 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
589 if (o->nb_frame_sizes) {
590 av_dict_set(&format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
592 if (o->nb_frame_pix_fmts)
593 av_dict_set(&format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
595 ic->flags |= AVFMT_FLAG_NONBLOCK;
596 ic->interrupt_callback = int_cb;
598 /* open the input file with generic libav function */
599 err = avformat_open_input(&ic, filename, file_iformat, &format_opts);
601 print_error(filename, err);
604 assert_avoptions(format_opts);
606 /* apply forced codec ids */
607 for (i = 0; i < ic->nb_streams; i++)
608 choose_decoder(o, ic, ic->streams[i]);
610 /* Set AVCodecContext options for avformat_find_stream_info */
611 opts = setup_find_stream_info_opts(ic, codec_opts);
612 orig_nb_streams = ic->nb_streams;
614 /* If not enough info to get the stream parameters, we decode the
615 first frames to get it. (used in mpeg case for example) */
616 ret = avformat_find_stream_info(ic, opts);
618 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
619 avformat_close_input(&ic);
623 timestamp = o->start_time;
624 /* add the stream start time */
625 if (ic->start_time != AV_NOPTS_VALUE)
626 timestamp += ic->start_time;
628 /* if seeking requested, we execute it */
629 if (o->start_time != 0) {
630 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
632 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
633 filename, (double)timestamp / AV_TIME_BASE);
637 /* update the current parameters so that they match the one of the input stream */
638 add_input_streams(o, ic);
640 /* dump the file content */
641 av_dump_format(ic, nb_input_files, filename, 0);
643 input_files = grow_array(input_files, sizeof(*input_files), &nb_input_files, nb_input_files + 1);
644 if (!(input_files[nb_input_files - 1] = av_mallocz(sizeof(*input_files[0]))))
647 input_files[nb_input_files - 1]->ctx = ic;
648 input_files[nb_input_files - 1]->ist_index = nb_input_streams - ic->nb_streams;
649 input_files[nb_input_files - 1]->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
650 input_files[nb_input_files - 1]->nb_streams = ic->nb_streams;
651 input_files[nb_input_files - 1]->rate_emu = o->rate_emu;
653 for (i = 0; i < o->nb_dump_attachment; i++) {
656 for (j = 0; j < ic->nb_streams; j++) {
657 AVStream *st = ic->streams[j];
659 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
660 dump_attachment(st, o->dump_attachment[i].u.str);
664 for (i = 0; i < orig_nb_streams; i++)
665 av_dict_free(&opts[i]);
672 static uint8_t *get_line(AVIOContext *s)
678 if (avio_open_dyn_buf(&line) < 0) {
679 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
683 while ((c = avio_r8(s)) && c != '\n')
686 avio_close_dyn_buf(line, &buf);
691 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
695 const char *base[3] = { getenv("AVCONV_DATADIR"),
700 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
704 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
705 i != 1 ? "" : "/.avconv", codec_name, preset_name);
706 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
709 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
710 i != 1 ? "" : "/.avconv", preset_name);
711 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
717 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
719 char *codec_name = NULL;
721 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
723 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
724 NULL, ost->st->codec->codec_type);
725 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
726 } else if (!strcmp(codec_name, "copy"))
727 ost->stream_copy = 1;
729 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
730 ost->st->codec->codec_id = ost->enc->id;
734 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
737 AVStream *st = avformat_new_stream(oc, NULL);
738 int idx = oc->nb_streams - 1, ret = 0;
739 char *bsf = NULL, *next, *codec_tag = NULL;
740 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
742 char *buf = NULL, *arg = NULL, *preset = NULL;
743 AVIOContext *s = NULL;
746 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
750 if (oc->nb_streams - 1 < o->nb_streamid_map)
751 st->id = o->streamid_map[oc->nb_streams - 1];
753 output_streams = grow_array(output_streams, sizeof(*output_streams), &nb_output_streams,
754 nb_output_streams + 1);
755 if (!(ost = av_mallocz(sizeof(*ost))))
757 output_streams[nb_output_streams - 1] = ost;
759 ost->file_index = nb_output_files;
762 st->codec->codec_type = type;
763 choose_encoder(o, oc, ost);
765 ost->opts = filter_codec_opts(codec_opts, ost->enc->id, oc, st, ost->enc);
768 avcodec_get_context_defaults3(st->codec, ost->enc);
769 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
771 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
772 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
775 if (!buf[0] || buf[0] == '#') {
779 if (!(arg = strchr(buf, '='))) {
780 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
784 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
786 } while (!s->eof_reached);
790 av_log(NULL, AV_LOG_FATAL,
791 "Preset %s specified for stream %d:%d, but could not be opened.\n",
792 preset, ost->file_index, ost->index);
796 ost->max_frames = INT64_MAX;
797 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
799 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
801 if (next = strchr(bsf, ','))
803 if (!(bsfc = av_bitstream_filter_init(bsf))) {
804 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
808 bsfc_prev->next = bsfc;
810 ost->bitstream_filters = bsfc;
816 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
818 uint32_t tag = strtol(codec_tag, &next, 0);
820 tag = AV_RL32(codec_tag);
821 st->codec->codec_tag = tag;
824 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
825 if (qscale >= 0 || same_quant) {
826 st->codec->flags |= CODEC_FLAG_QSCALE;
827 st->codec->global_quality = FF_QP2LAMBDA * qscale;
830 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
831 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
833 av_opt_get_int(sws_opts, "sws_flags", 0, &ost->sws_flags);
835 ost->pix_fmts[0] = ost->pix_fmts[1] = PIX_FMT_NONE;
840 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
850 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
857 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
861 AVCodecContext *video_enc;
863 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
865 video_enc = st->codec;
867 if (!ost->stream_copy) {
868 const char *p = NULL;
869 char *frame_rate = NULL, *frame_size = NULL;
870 char *frame_aspect_ratio = NULL, *frame_pix_fmt = NULL;
871 char *intra_matrix = NULL, *inter_matrix = NULL;
872 const char *filters = "null";
875 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
876 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
877 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
881 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
882 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
883 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
887 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
888 if (frame_aspect_ratio)
889 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
891 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
892 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == PIX_FMT_NONE) {
893 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
896 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
898 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
900 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
901 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
904 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
906 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
908 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
909 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
912 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
915 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
916 for (i = 0; p; i++) {
918 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
920 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
923 video_enc->rc_override =
924 av_realloc(video_enc->rc_override,
925 sizeof(RcOverride) * (i + 1));
926 video_enc->rc_override[i].start_frame = start;
927 video_enc->rc_override[i].end_frame = end;
929 video_enc->rc_override[i].qscale = q;
930 video_enc->rc_override[i].quality_factor = 1.0;
933 video_enc->rc_override[i].qscale = 0;
934 video_enc->rc_override[i].quality_factor = -q/100.0;
939 video_enc->rc_override_count = i;
940 if (!video_enc->rc_initial_buffer_occupancy)
941 video_enc->rc_initial_buffer_occupancy = video_enc->rc_buffer_size * 3 / 4;
942 video_enc->intra_dc_precision = intra_dc_precision - 8;
947 video_enc->flags |= CODEC_FLAG_PASS1;
949 video_enc->flags |= CODEC_FLAG_PASS2;
953 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
954 if (ost->forced_keyframes)
955 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
957 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
959 ost->top_field_first = -1;
960 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
962 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
963 ost->avfilter = av_strdup(filters);
965 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
971 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
975 AVCodecContext *audio_enc;
977 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
980 audio_enc = st->codec;
981 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
983 if (!ost->stream_copy) {
984 char *sample_fmt = NULL;
985 const char *filters = "anull";
987 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
989 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
991 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
992 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
996 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
998 MATCH_PER_STREAM_OPT(filters, str, filters, oc, st);
999 ost->avfilter = av_strdup(filters);
1005 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1009 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1010 if (!ost->stream_copy) {
1011 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1018 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1020 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1021 ost->stream_copy = 1;
1025 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1029 AVCodecContext *subtitle_enc;
1031 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1033 subtitle_enc = st->codec;
1035 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1040 /* arg format is "output-stream-index:streamid-value". */
1041 static int opt_streamid(OptionsContext *o, const char *opt, const char *arg)
1047 av_strlcpy(idx_str, arg, sizeof(idx_str));
1048 p = strchr(idx_str, ':');
1050 av_log(NULL, AV_LOG_FATAL,
1051 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1056 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1057 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1058 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1062 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1064 AVFormatContext *is = ifile->ctx;
1065 AVFormatContext *os = ofile->ctx;
1068 for (i = 0; i < is->nb_chapters; i++) {
1069 AVChapter *in_ch = is->chapters[i], *out_ch;
1070 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
1071 AV_TIME_BASE_Q, in_ch->time_base);
1072 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1073 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1076 if (in_ch->end < ts_off)
1078 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1081 out_ch = av_mallocz(sizeof(AVChapter));
1083 return AVERROR(ENOMEM);
1085 out_ch->id = in_ch->id;
1086 out_ch->time_base = in_ch->time_base;
1087 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1088 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1091 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1094 os->chapters = av_realloc(os->chapters, sizeof(AVChapter) * os->nb_chapters);
1096 return AVERROR(ENOMEM);
1097 os->chapters[os->nb_chapters - 1] = out_ch;
1102 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1103 AVFormatContext *oc)
1107 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1108 ofilter->out_tmp->pad_idx)) {
1109 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1110 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1112 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1117 ost->source_index = -1;
1118 ost->filter = ofilter;
1122 if (ost->stream_copy) {
1123 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1124 "which is fed from a complex filtergraph. Filtering and streamcopy "
1125 "cannot be used together.\n", ost->file_index, ost->index);
1129 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1130 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1133 avfilter_inout_free(&ofilter->out_tmp);
1136 static int configure_complex_filters(void)
1140 for (i = 0; i < nb_filtergraphs; i++)
1141 if (!filtergraphs[i]->graph &&
1142 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1147 void opt_output_file(void *optctx, const char *filename)
1149 OptionsContext *o = optctx;
1150 AVFormatContext *oc;
1152 AVOutputFormat *file_oformat;
1156 if (configure_complex_filters() < 0) {
1157 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1161 if (!strcmp(filename, "-"))
1164 oc = avformat_alloc_context();
1166 print_error(filename, AVERROR(ENOMEM));
1171 file_oformat = av_guess_format(o->format, NULL, NULL);
1172 if (!file_oformat) {
1173 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1177 file_oformat = av_guess_format(NULL, filename, NULL);
1178 if (!file_oformat) {
1179 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1185 oc->oformat = file_oformat;
1186 oc->interrupt_callback = int_cb;
1187 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1189 /* create streams for all unlabeled output pads */
1190 for (i = 0; i < nb_filtergraphs; i++) {
1191 FilterGraph *fg = filtergraphs[i];
1192 for (j = 0; j < fg->nb_outputs; j++) {
1193 OutputFilter *ofilter = fg->outputs[j];
1195 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1198 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1199 ofilter->out_tmp->pad_idx)) {
1200 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1201 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1202 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1204 init_output_filter(ofilter, o, oc);
1208 if (!o->nb_stream_maps) {
1209 /* pick the "best" stream of each type */
1210 #define NEW_STREAM(type, index)\
1212 ost = new_ ## type ## _stream(o, oc);\
1213 ost->source_index = index;\
1214 ost->sync_ist = input_streams[index];\
1215 input_streams[index]->discard = 0;\
1216 input_streams[index]->st->discard = AVDISCARD_NONE;\
1219 /* video: highest resolution */
1220 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1221 int area = 0, idx = -1;
1222 for (i = 0; i < nb_input_streams; i++) {
1223 ist = input_streams[i];
1224 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1225 ist->st->codec->width * ist->st->codec->height > area) {
1226 area = ist->st->codec->width * ist->st->codec->height;
1230 NEW_STREAM(video, idx);
1233 /* audio: most channels */
1234 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1235 int channels = 0, idx = -1;
1236 for (i = 0; i < nb_input_streams; i++) {
1237 ist = input_streams[i];
1238 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1239 ist->st->codec->channels > channels) {
1240 channels = ist->st->codec->channels;
1244 NEW_STREAM(audio, idx);
1247 /* subtitles: pick first */
1248 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1249 for (i = 0; i < nb_input_streams; i++)
1250 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1251 NEW_STREAM(subtitle, i);
1255 /* do something with data? */
1257 for (i = 0; i < o->nb_stream_maps; i++) {
1258 StreamMap *map = &o->stream_maps[i];
1263 if (map->linklabel) {
1265 OutputFilter *ofilter = NULL;
1268 for (j = 0; j < nb_filtergraphs; j++) {
1269 fg = filtergraphs[j];
1270 for (k = 0; k < fg->nb_outputs; k++) {
1271 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1272 if (out && !strcmp(out->name, map->linklabel)) {
1273 ofilter = fg->outputs[k];
1280 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1281 "in any defined filter graph.\n", map->linklabel);
1284 init_output_filter(ofilter, o, oc);
1286 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1287 switch (ist->st->codec->codec_type) {
1288 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1289 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1290 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1291 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1292 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1294 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1295 map->file_index, map->stream_index);
1299 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1300 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1301 map->sync_stream_index];
1303 ist->st->discard = AVDISCARD_NONE;
1308 /* handle attached files */
1309 for (i = 0; i < o->nb_attachments; i++) {
1311 uint8_t *attachment;
1315 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1316 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1320 if ((len = avio_size(pb)) <= 0) {
1321 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1325 if (!(attachment = av_malloc(len))) {
1326 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1330 avio_read(pb, attachment, len);
1332 ost = new_attachment_stream(o, oc);
1333 ost->stream_copy = 0;
1334 ost->source_index = -1;
1335 ost->attachment_filename = o->attachments[i];
1336 ost->st->codec->extradata = attachment;
1337 ost->st->codec->extradata_size = len;
1339 p = strrchr(o->attachments[i], '/');
1340 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1344 output_files = grow_array(output_files, sizeof(*output_files), &nb_output_files, nb_output_files + 1);
1345 if (!(output_files[nb_output_files - 1] = av_mallocz(sizeof(*output_files[0]))))
1348 output_files[nb_output_files - 1]->ctx = oc;
1349 output_files[nb_output_files - 1]->ost_index = nb_output_streams - oc->nb_streams;
1350 output_files[nb_output_files - 1]->recording_time = o->recording_time;
1351 if (o->recording_time != INT64_MAX)
1352 oc->duration = o->recording_time;
1353 output_files[nb_output_files - 1]->start_time = o->start_time;
1354 output_files[nb_output_files - 1]->limit_filesize = o->limit_filesize;
1355 output_files[nb_output_files - 1]->shortest = o->shortest;
1356 av_dict_copy(&output_files[nb_output_files - 1]->opts, format_opts, 0);
1358 /* check filename in case of an image number is expected */
1359 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1360 if (!av_filename_number_test(oc->filename)) {
1361 print_error(oc->filename, AVERROR(EINVAL));
1366 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1367 /* test if it already exists to avoid losing precious files */
1368 assert_file_overwrite(filename);
1371 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1372 &oc->interrupt_callback,
1373 &output_files[nb_output_files - 1]->opts)) < 0) {
1374 print_error(filename, err);
1379 if (o->mux_preload) {
1381 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1382 av_dict_set(&output_files[nb_output_files - 1]->opts, "preload", buf, 0);
1384 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1385 oc->flags |= AVFMT_FLAG_NONBLOCK;
1388 for (i = 0; i < o->nb_metadata_map; i++) {
1390 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1392 if (in_file_index < 0)
1394 if (in_file_index >= nb_input_files) {
1395 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1398 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc, input_files[in_file_index]->ctx, o);
1402 if (o->chapters_input_file >= nb_input_files) {
1403 if (o->chapters_input_file == INT_MAX) {
1404 /* copy chapters from the first input file that has them*/
1405 o->chapters_input_file = -1;
1406 for (i = 0; i < nb_input_files; i++)
1407 if (input_files[i]->ctx->nb_chapters) {
1408 o->chapters_input_file = i;
1412 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1413 o->chapters_input_file);
1417 if (o->chapters_input_file >= 0)
1418 copy_chapters(input_files[o->chapters_input_file], output_files[nb_output_files - 1],
1419 !o->metadata_chapters_manual);
1421 /* copy global metadata by default */
1422 if (!o->metadata_global_manual && nb_input_files)
1423 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1424 AV_DICT_DONT_OVERWRITE);
1425 if (!o->metadata_streams_manual)
1426 for (i = output_files[nb_output_files - 1]->ost_index; i < nb_output_streams; i++) {
1428 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1430 ist = input_streams[output_streams[i]->source_index];
1431 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1434 /* process manually set metadata */
1435 for (i = 0; i < o->nb_metadata; i++) {
1438 const char *stream_spec;
1439 int index = 0, j, ret;
1441 val = strchr(o->metadata[i].u.str, '=');
1443 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1444 o->metadata[i].u.str);
1449 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1451 for (j = 0; j < oc->nb_streams; j++) {
1452 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1453 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1464 if (index < 0 || index >= oc->nb_chapters) {
1465 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1468 m = &oc->chapters[index]->metadata;
1471 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
1474 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
1481 /* same option as mencoder */
1482 static int opt_pass(const char *opt, const char *arg)
1484 do_pass = parse_number_or_die(opt, arg, OPT_INT, 1, 2);
1489 static int opt_target(OptionsContext *o, const char *opt, const char *arg)
1491 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
1492 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
1494 if (!strncmp(arg, "pal-", 4)) {
1497 } else if (!strncmp(arg, "ntsc-", 5)) {
1500 } else if (!strncmp(arg, "film-", 5)) {
1504 /* Try to determine PAL/NTSC by peeking in the input files */
1505 if (nb_input_files) {
1507 for (j = 0; j < nb_input_files; j++) {
1508 for (i = 0; i < input_files[j]->nb_streams; i++) {
1509 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
1510 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
1512 fr = c->time_base.den * 1000 / c->time_base.num;
1516 } else if ((fr == 29970) || (fr == 23976)) {
1521 if (norm != UNKNOWN)
1525 if (norm != UNKNOWN)
1526 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
1529 if (norm == UNKNOWN) {
1530 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
1531 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
1532 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
1536 if (!strcmp(arg, "vcd")) {
1537 opt_video_codec(o, "c:v", "mpeg1video");
1538 opt_audio_codec(o, "c:a", "mp2");
1539 parse_option(o, "f", "vcd", options);
1541 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
1542 parse_option(o, "r", frame_rates[norm], options);
1543 opt_default("g", norm == PAL ? "15" : "18");
1545 opt_default("b", "1150000");
1546 opt_default("maxrate", "1150000");
1547 opt_default("minrate", "1150000");
1548 opt_default("bufsize", "327680"); // 40*1024*8;
1550 opt_default("b:a", "224000");
1551 parse_option(o, "ar", "44100", options);
1552 parse_option(o, "ac", "2", options);
1554 opt_default("packetsize", "2324");
1555 opt_default("muxrate", "1411200"); // 2352 * 75 * 8;
1557 /* We have to offset the PTS, so that it is consistent with the SCR.
1558 SCR starts at 36000, but the first two packs contain only padding
1559 and the first pack from the other stream, respectively, may also have
1560 been written before.
1561 So the real data starts at SCR 36000+3*1200. */
1562 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
1563 } else if (!strcmp(arg, "svcd")) {
1565 opt_video_codec(o, "c:v", "mpeg2video");
1566 opt_audio_codec(o, "c:a", "mp2");
1567 parse_option(o, "f", "svcd", options);
1569 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
1570 parse_option(o, "r", frame_rates[norm], options);
1571 opt_default("g", norm == PAL ? "15" : "18");
1573 opt_default("b", "2040000");
1574 opt_default("maxrate", "2516000");
1575 opt_default("minrate", "0"); // 1145000;
1576 opt_default("bufsize", "1835008"); // 224*1024*8;
1577 opt_default("flags", "+scan_offset");
1580 opt_default("b:a", "224000");
1581 parse_option(o, "ar", "44100", options);
1583 opt_default("packetsize", "2324");
1585 } else if (!strcmp(arg, "dvd")) {
1587 opt_video_codec(o, "c:v", "mpeg2video");
1588 opt_audio_codec(o, "c:a", "ac3");
1589 parse_option(o, "f", "dvd", options);
1591 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1592 parse_option(o, "r", frame_rates[norm], options);
1593 opt_default("g", norm == PAL ? "15" : "18");
1595 opt_default("b", "6000000");
1596 opt_default("maxrate", "9000000");
1597 opt_default("minrate", "0"); // 1500000;
1598 opt_default("bufsize", "1835008"); // 224*1024*8;
1600 opt_default("packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
1601 opt_default("muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
1603 opt_default("b:a", "448000");
1604 parse_option(o, "ar", "48000", options);
1606 } else if (!strncmp(arg, "dv", 2)) {
1608 parse_option(o, "f", "dv", options);
1610 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1611 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
1612 norm == PAL ? "yuv420p" : "yuv411p", options);
1613 parse_option(o, "r", frame_rates[norm], options);
1615 parse_option(o, "ar", "48000", options);
1616 parse_option(o, "ac", "2", options);
1619 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
1620 return AVERROR(EINVAL);
1625 static int opt_vstats_file(const char *opt, const char *arg)
1627 av_free (vstats_filename);
1628 vstats_filename = av_strdup (arg);
1632 static int opt_vstats(const char *opt, const char *arg)
1635 time_t today2 = time(NULL);
1636 struct tm *today = localtime(&today2);
1638 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
1640 return opt_vstats_file(opt, filename);
1643 static int opt_video_frames(OptionsContext *o, const char *opt, const char *arg)
1645 return parse_option(o, "frames:v", arg, options);
1648 static int opt_audio_frames(OptionsContext *o, const char *opt, const char *arg)
1650 return parse_option(o, "frames:a", arg, options);
1653 static int opt_data_frames(OptionsContext *o, const char *opt, const char *arg)
1655 return parse_option(o, "frames:d", arg, options);
1658 static int opt_video_tag(OptionsContext *o, const char *opt, const char *arg)
1660 return parse_option(o, "tag:v", arg, options);
1663 static int opt_audio_tag(OptionsContext *o, const char *opt, const char *arg)
1665 return parse_option(o, "tag:a", arg, options);
1668 static int opt_subtitle_tag(OptionsContext *o, const char *opt, const char *arg)
1670 return parse_option(o, "tag:s", arg, options);
1673 static int opt_video_filters(OptionsContext *o, const char *opt, const char *arg)
1675 return parse_option(o, "filter:v", arg, options);
1678 static int opt_audio_filters(OptionsContext *o, const char *opt, const char *arg)
1680 return parse_option(o, "filter:a", arg, options);
1683 static int opt_vsync(const char *opt, const char *arg)
1685 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
1686 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
1687 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
1689 if (video_sync_method == VSYNC_AUTO)
1690 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
1694 static int opt_deinterlace(const char *opt, const char *arg)
1696 av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -filter:v yadif instead\n", opt);
1701 int opt_cpuflags(const char *opt, const char *arg)
1703 int flags = av_parse_cpu_flags(arg);
1708 av_set_cpu_flags_mask(flags);
1712 static int opt_channel_layout(OptionsContext *o, const char *opt, const char *arg)
1714 char layout_str[32];
1717 int ret, channels, ac_str_size;
1720 layout = av_get_channel_layout(arg);
1722 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
1723 return AVERROR(EINVAL);
1725 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
1726 ret = opt_default(opt, layout_str);
1730 /* set 'ac' option based on channel layout */
1731 channels = av_get_channel_layout_nb_channels(layout);
1732 snprintf(layout_str, sizeof(layout_str), "%d", channels);
1733 stream_str = strchr(opt, ':');
1734 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
1735 ac_str = av_mallocz(ac_str_size);
1737 return AVERROR(ENOMEM);
1738 av_strlcpy(ac_str, "ac", 3);
1740 av_strlcat(ac_str, stream_str, ac_str_size);
1741 ret = parse_option(o, ac_str, layout_str, options);
1747 static int opt_audio_qscale(OptionsContext *o, const char *opt, const char *arg)
1749 return parse_option(o, "q:a", arg, options);
1752 static int opt_filter_complex(const char *opt, const char *arg)
1754 filtergraphs = grow_array(filtergraphs, sizeof(*filtergraphs),
1755 &nb_filtergraphs, nb_filtergraphs + 1);
1756 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
1757 return AVERROR(ENOMEM);
1758 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
1759 filtergraphs[nb_filtergraphs - 1]->graph_desc = arg;
1763 static int show_help(const char *opt, const char *arg)
1765 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
1766 av_log_set_callback(log_callback_help);
1768 show_help_options(options, "Main options:\n",
1769 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB, 0);
1770 show_help_options(options, "\nAdvanced options:\n",
1771 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE | OPT_GRAB,
1773 show_help_options(options, "\nVideo options:\n",
1774 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
1776 show_help_options(options, "\nAdvanced Video options:\n",
1777 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
1778 OPT_VIDEO | OPT_EXPERT);
1779 show_help_options(options, "\nAudio options:\n",
1780 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
1782 show_help_options(options, "\nAdvanced Audio options:\n",
1783 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_GRAB,
1784 OPT_AUDIO | OPT_EXPERT);
1785 show_help_options(options, "\nSubtitle options:\n",
1786 OPT_SUBTITLE | OPT_GRAB,
1788 show_help_options(options, "\nAudio/Video grab options:\n",
1792 show_help_children(avcodec_get_class(), flags);
1793 show_help_children(avformat_get_class(), flags);
1794 show_help_children(sws_get_class(), flags);
1798 void show_usage(void)
1800 printf("Hyper fast Audio and Video encoder\n");
1801 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
1806 #define OFFSET(x) offsetof(OptionsContext, x)
1807 const OptionDef options[] = {
1809 #include "cmdutils_common_opts.h"
1810 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET, {.off = OFFSET(format)}, "force format", "fmt" },
1811 { "i", HAS_ARG | OPT_FUNC2, {(void*)opt_input_file}, "input file name", "filename" },
1812 { "y", OPT_BOOL, {(void*)&file_overwrite}, "overwrite output files" },
1813 { "c", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
1814 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(codec_names)}, "codec name", "codec" },
1815 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(presets)}, "preset name", "preset" },
1816 { "map", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_map}, "set input stream mapping", "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
1817 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata_map)}, "set metadata information of outfile from infile",
1818 "outfile[,metadata]:infile[,metadata]" },
1819 { "map_chapters", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(chapters_input_file)}, "set chapters mapping", "input_file_index" },
1820 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(recording_time)}, "record or transcode \"duration\" seconds of audio/video", "duration" },
1821 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET, {.off = OFFSET(limit_filesize)}, "set the limit file size in bytes", "limit_size" }, //
1822 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(start_time)}, "set the start time offset", "time_off" },
1823 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET, {.off = OFFSET(input_ts_offset)}, "set the input ts offset", "time_off" },
1824 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(ts_scale)}, "set the input ts scale", "scale" },
1825 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(metadata)}, "add metadata", "string=string" },
1826 { "dframes", HAS_ARG | OPT_FUNC2, {(void*)opt_data_frames}, "set the number of data frames to record", "number" },
1827 { "benchmark", OPT_BOOL | OPT_EXPERT, {(void*)&do_benchmark},
1828 "add timings for benchmarking" },
1829 { "timelimit", HAS_ARG, {(void*)opt_timelimit}, "set max runtime in seconds", "limit" },
1830 { "dump", OPT_BOOL | OPT_EXPERT, {(void*)&do_pkt_dump},
1831 "dump each input packet" },
1832 { "hex", OPT_BOOL | OPT_EXPERT, {(void*)&do_hex_dump},
1833 "when dumping packets, also dump the payload" },
1834 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(rate_emu)}, "read input at native frame rate", "" },
1835 { "target", HAS_ARG | OPT_FUNC2, {(void*)opt_target}, "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
1836 { "vsync", HAS_ARG | OPT_EXPERT, {(void*)opt_vsync}, "video sync method", "" },
1837 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, {(void*)&audio_sync_method}, "audio sync method", "" },
1838 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&audio_drift_threshold}, "audio drift threshold", "threshold" },
1839 { "copyts", OPT_BOOL | OPT_EXPERT, {(void*)©_ts}, "copy timestamps" },
1840 { "copytb", OPT_BOOL | OPT_EXPERT, {(void*)©_tb}, "copy input stream time base when stream copying" },
1841 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(shortest)}, "finish encoding within shortest input" },
1842 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, {(void*)&dts_delta_threshold}, "timestamp discontinuity delta threshold", "threshold" },
1843 { "xerror", OPT_BOOL, {(void*)&exit_on_error}, "exit on error", "error" },
1844 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC, {.off = OFFSET(copy_initial_nonkeyframes)}, "copy initial non-keyframes" },
1845 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC, {.off = OFFSET(max_frames)}, "set the number of frames to record", "number" },
1846 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC, {.off = OFFSET(codec_tags)}, "force codec tag/fourcc", "fourcc/tag" },
1847 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
1848 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE | OPT_SPEC, {.off = OFFSET(qscale)}, "use fixed quality scale (VBR)", "q" },
1849 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(filters)}, "set stream filterchain", "filter_list" },
1850 { "filter_complex", HAS_ARG | OPT_EXPERT, {(void*)opt_filter_complex}, "create a complex filtergraph", "graph_description" },
1851 { "stats", OPT_BOOL, {&print_stats}, "print progress report during encoding", },
1852 { "attach", HAS_ARG | OPT_FUNC2, {(void*)opt_attach}, "add an attachment to the output file", "filename" },
1853 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(dump_attachment)}, "extract an attachment into a file", "filename" },
1854 { "cpuflags", HAS_ARG | OPT_EXPERT, {(void*)opt_cpuflags}, "set CPU flags mask", "mask" },
1857 { "vframes", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_frames}, "set the number of video frames to record", "number" },
1858 { "r", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_rates)}, "set frame rate (Hz value, fraction or abbreviation)", "rate" },
1859 { "s", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_sizes)}, "set frame size (WxH or abbreviation)", "size" },
1860 { "aspect", HAS_ARG | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_aspect_ratios)}, "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
1861 { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(frame_pix_fmts)}, "set pixel format", "format" },
1862 { "vn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET, {.off = OFFSET(video_disable)}, "disable video" },
1863 { "vdt", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&video_discard}, "discard threshold", "n" },
1864 { "rc_override", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(rc_overrides)}, "rate control override for specific intervals", "override" },
1865 { "vcodec", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_codec}, "force video codec ('copy' to copy stream)", "codec" },
1866 { "same_quant", OPT_BOOL | OPT_VIDEO, {(void*)&same_quant},
1867 "use same quantizer as source (implies VBR)" },
1868 { "pass", HAS_ARG | OPT_VIDEO, {(void*)opt_pass}, "select the pass number (1 or 2)", "n" },
1869 { "passlogfile", HAS_ARG | OPT_STRING | OPT_VIDEO, {(void*)&pass_logfilename_prefix}, "select two pass log file name prefix", "prefix" },
1870 { "deinterlace", OPT_EXPERT | OPT_VIDEO, {(void*)opt_deinterlace},
1871 "this option is deprecated, use the yadif filter instead" },
1872 { "vstats", OPT_EXPERT | OPT_VIDEO, {(void*)&opt_vstats}, "dump video coding statistics to file" },
1873 { "vstats_file", HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)opt_vstats_file}, "dump video coding statistics to file", "file" },
1874 { "vf", HAS_ARG | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_filters}, "video filters", "filter list" },
1875 { "intra_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(intra_matrices)}, "specify intra matrix coeffs", "matrix" },
1876 { "inter_matrix", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_STRING | OPT_SPEC, {.off = OFFSET(inter_matrices)}, "specify inter matrix coeffs", "matrix" },
1877 { "top", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_INT| OPT_SPEC, {.off = OFFSET(top_field_first)}, "top=1/bottom=0/auto=-1 field first", "" },
1878 { "dc", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_VIDEO, {(void*)&intra_dc_precision}, "intra_dc_precision", "precision" },
1879 { "vtag", HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_FUNC2, {(void*)opt_video_tag}, "force video tag/fourcc", "fourcc/tag" },
1880 { "qphist", OPT_BOOL | OPT_EXPERT | OPT_VIDEO, { (void *)&qp_hist }, "show QP histogram" },
1881 { "force_fps", OPT_BOOL | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(force_fps)}, "force the selected framerate, disable the best supported framerate selection" },
1882 { "streamid", HAS_ARG | OPT_EXPERT | OPT_FUNC2, {(void*)opt_streamid}, "set the value of an outfile streamid", "streamIndex:value" },
1883 { "force_key_frames", OPT_STRING | HAS_ARG | OPT_EXPERT | OPT_VIDEO | OPT_SPEC, {.off = OFFSET(forced_key_frames)}, "force key frames at specified timestamps", "timestamps" },
1886 { "aframes", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_frames}, "set the number of audio frames to record", "number" },
1887 { "aq", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_qscale}, "set audio quality (codec-specific)", "quality", },
1888 { "ar", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_sample_rate)}, "set audio sampling rate (in Hz)", "rate" },
1889 { "ac", HAS_ARG | OPT_AUDIO | OPT_INT | OPT_SPEC, {.off = OFFSET(audio_channels)}, "set number of audio channels", "channels" },
1890 { "an", OPT_BOOL | OPT_AUDIO | OPT_OFFSET, {.off = OFFSET(audio_disable)}, "disable audio" },
1891 { "acodec", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_codec}, "force audio codec ('copy' to copy stream)", "codec" },
1892 { "atag", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_tag}, "force audio tag/fourcc", "fourcc/tag" },
1893 { "vol", OPT_INT | HAS_ARG | OPT_AUDIO, {(void*)&audio_volume}, "change audio volume (256=normal)" , "volume" }, //
1894 { "sample_fmt", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_SPEC | OPT_STRING, {.off = OFFSET(sample_fmts)}, "set sample format", "format" },
1895 { "channel_layout", HAS_ARG | OPT_EXPERT | OPT_AUDIO | OPT_FUNC2, {(void*)opt_channel_layout}, "set channel layout", "layout" },
1896 { "af", HAS_ARG | OPT_AUDIO | OPT_FUNC2, {(void*)opt_audio_filters}, "audio filters", "filter list" },
1898 /* subtitle options */
1899 { "sn", OPT_BOOL | OPT_SUBTITLE | OPT_OFFSET, {.off = OFFSET(subtitle_disable)}, "disable subtitle" },
1900 { "scodec", HAS_ARG | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_codec}, "force subtitle codec ('copy' to copy stream)", "codec" },
1901 { "stag", HAS_ARG | OPT_EXPERT | OPT_SUBTITLE | OPT_FUNC2, {(void*)opt_subtitle_tag}, "force subtitle tag/fourcc", "fourcc/tag" },
1904 { "isync", OPT_BOOL | OPT_EXPERT | OPT_GRAB, {(void*)&input_sync}, "sync read on input", "" },
1907 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_max_delay)}, "set the maximum demux-decode delay", "seconds" },
1908 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET, {.off = OFFSET(mux_preload)}, "set the initial demux-decode delay", "seconds" },
1910 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC, {.off = OFFSET(bitstream_filters)}, "A comma-separated list of bitstream filters", "bitstream_filters" },
1912 /* data codec support */
1913 { "dcodec", HAS_ARG | OPT_DATA | OPT_FUNC2, {(void*)opt_data_codec}, "force data codec ('copy' to copy stream)", "codec" },
1915 { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, {(void*)opt_default}, "generic catch all option", "" },