2 * ffmpeg option parsing
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavformat/avformat.h"
28 #include "libavcodec/avcodec.h"
30 #include "libavfilter/avfilter.h"
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
44 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
47 for (i = 0; i < o->nb_ ## name; i++) {\
48 char *spec = o->name[i].specifier;\
49 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
50 outvar = o->name[i].u.type;\
56 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
59 for (i = 0; i < o->nb_ ## name; i++) {\
60 char *spec = o->name[i].specifier;\
61 if (!strcmp(spec, mediatype))\
62 outvar = o->name[i].u.type;\
65 char *vstats_filename;
67 float audio_drift_threshold = 0.1;
68 float dts_delta_threshold = 10;
69 float dts_error_threshold = 3600*30;
71 int audio_volume = 256;
72 int audio_sync_method = 0;
73 int video_sync_method = VSYNC_AUTO;
74 int do_deinterlace = 0;
76 int do_benchmark_all = 0;
82 int exit_on_error = 0;
85 int stdin_interaction = 1;
86 int frame_bits_per_raw_sample = 0;
87 float max_error_rate = 2.0/3;
90 static int intra_only = 0;
91 static int file_overwrite = 0;
92 static int no_file_overwrite = 0;
93 static int video_discard = 0;
94 static int intra_dc_precision = 8;
95 static int do_psnr = 0;
96 static int input_sync;
97 static int override_ffserver = 0;
99 static void uninit_options(OptionsContext *o)
101 const OptionDef *po = options;
104 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
106 void *dst = (uint8_t*)o + po->u.off;
108 if (po->flags & OPT_SPEC) {
109 SpecifierOpt **so = dst;
110 int i, *count = (int*)(so + 1);
111 for (i = 0; i < *count; i++) {
112 av_freep(&(*so)[i].specifier);
113 if (po->flags & OPT_STRING)
114 av_freep(&(*so)[i].u.str);
118 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
123 for (i = 0; i < o->nb_stream_maps; i++)
124 av_freep(&o->stream_maps[i].linklabel);
125 av_freep(&o->stream_maps);
126 av_freep(&o->audio_channel_maps);
127 av_freep(&o->streamid_map);
128 av_freep(&o->attachments);
131 static void init_options(OptionsContext *o)
133 memset(o, 0, sizeof(*o));
135 o->stop_time = INT64_MAX;
136 o->mux_max_delay = 0.7;
137 o->start_time = AV_NOPTS_VALUE;
138 o->recording_time = INT64_MAX;
139 o->limit_filesize = UINT64_MAX;
140 o->chapters_input_file = INT_MAX;
141 o->accurate_seek = 1;
144 /* return a copy of the input with the stream specifiers removed from the keys */
145 static AVDictionary *strip_specifiers(AVDictionary *dict)
147 AVDictionaryEntry *e = NULL;
148 AVDictionary *ret = NULL;
150 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
151 char *p = strchr(e->key, ':');
155 av_dict_set(&ret, e->key, e->value, 0);
162 static int opt_sameq(void *optctx, const char *opt, const char *arg)
164 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
165 "If you are looking for an option to preserve the quality (which is not "
166 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
168 return AVERROR(EINVAL);
171 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
173 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
174 return opt_default(optctx, "channel", arg);
177 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
179 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
180 return opt_default(optctx, "standard", arg);
183 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
185 OptionsContext *o = optctx;
186 return parse_option(o, "codec:a", arg, options);
189 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
191 OptionsContext *o = optctx;
192 return parse_option(o, "codec:v", arg, options);
195 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
197 OptionsContext *o = optctx;
198 return parse_option(o, "codec:s", arg, options);
201 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
203 OptionsContext *o = optctx;
204 return parse_option(o, "codec:d", arg, options);
207 static int opt_map(void *optctx, const char *opt, const char *arg)
209 OptionsContext *o = optctx;
211 int i, negative = 0, file_idx;
212 int sync_file_idx = -1, sync_stream_idx = 0;
220 map = av_strdup(arg);
222 /* parse sync stream first, just pick first matching stream */
223 if (sync = strchr(map, ',')) {
225 sync_file_idx = strtol(sync + 1, &sync, 0);
226 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
227 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
232 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
233 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
234 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
238 if (i == input_files[sync_file_idx]->nb_streams) {
239 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
240 "match any streams.\n", arg);
247 /* this mapping refers to lavfi output */
248 const char *c = map + 1;
249 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
250 m = &o->stream_maps[o->nb_stream_maps - 1];
251 m->linklabel = av_get_token(&c, "]");
253 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
257 file_idx = strtol(map, &p, 0);
258 if (file_idx >= nb_input_files || file_idx < 0) {
259 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
263 /* disable some already defined maps */
264 for (i = 0; i < o->nb_stream_maps; i++) {
265 m = &o->stream_maps[i];
266 if (file_idx == m->file_index &&
267 check_stream_specifier(input_files[m->file_index]->ctx,
268 input_files[m->file_index]->ctx->streams[m->stream_index],
269 *p == ':' ? p + 1 : p) > 0)
273 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
274 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
275 *p == ':' ? p + 1 : p) <= 0)
277 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
278 m = &o->stream_maps[o->nb_stream_maps - 1];
280 m->file_index = file_idx;
283 if (sync_file_idx >= 0) {
284 m->sync_file_index = sync_file_idx;
285 m->sync_stream_index = sync_stream_idx;
287 m->sync_file_index = file_idx;
288 m->sync_stream_index = i;
294 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
302 static int opt_attach(void *optctx, const char *opt, const char *arg)
304 OptionsContext *o = optctx;
305 GROW_ARRAY(o->attachments, o->nb_attachments);
306 o->attachments[o->nb_attachments - 1] = arg;
310 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
312 OptionsContext *o = optctx;
317 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
318 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
320 /* muted channel syntax */
321 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
322 if ((n == 1 || n == 3) && m->channel_idx == -1) {
323 m->file_idx = m->stream_idx = -1;
325 m->ofile_idx = m->ostream_idx = -1;
330 n = sscanf(arg, "%d.%d.%d:%d.%d",
331 &m->file_idx, &m->stream_idx, &m->channel_idx,
332 &m->ofile_idx, &m->ostream_idx);
334 if (n != 3 && n != 5) {
335 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
336 "[file.stream.channel|-1][:syncfile:syncstream]\n");
340 if (n != 5) // only file.stream.channel specified
341 m->ofile_idx = m->ostream_idx = -1;
344 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
345 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
349 if (m->stream_idx < 0 ||
350 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
351 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
352 m->file_idx, m->stream_idx);
355 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
356 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
357 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
358 m->file_idx, m->stream_idx);
361 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
362 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
363 m->file_idx, m->stream_idx, m->channel_idx);
370 * Parse a metadata specifier passed as 'arg' parameter.
371 * @param arg metadata string to parse
372 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
373 * @param index for type c/p, chapter/program index is written here
374 * @param stream_spec for type s, the stream specifier is written here
376 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
384 if (*(++arg) && *arg != ':') {
385 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
388 *stream_spec = *arg == ':' ? arg + 1 : "";
393 *index = strtol(++arg, NULL, 0);
396 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
403 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
405 AVDictionary **meta_in = NULL;
406 AVDictionary **meta_out = NULL;
408 char type_in, type_out;
409 const char *istream_spec = NULL, *ostream_spec = NULL;
410 int idx_in = 0, idx_out = 0;
412 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
413 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
416 if (type_out == 'g' || !*outspec)
417 o->metadata_global_manual = 1;
418 if (type_out == 's' || !*outspec)
419 o->metadata_streams_manual = 1;
420 if (type_out == 'c' || !*outspec)
421 o->metadata_chapters_manual = 1;
425 if (type_in == 'g' || type_out == 'g')
426 o->metadata_global_manual = 1;
427 if (type_in == 's' || type_out == 's')
428 o->metadata_streams_manual = 1;
429 if (type_in == 'c' || type_out == 'c')
430 o->metadata_chapters_manual = 1;
432 /* ic is NULL when just disabling automatic mappings */
436 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
437 if ((index) < 0 || (index) >= (nb_elems)) {\
438 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
443 #define SET_DICT(type, meta, context, index)\
446 meta = &context->metadata;\
449 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
450 meta = &context->chapters[index]->metadata;\
453 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
454 meta = &context->programs[index]->metadata;\
457 break; /* handled separately below */ \
458 default: av_assert0(0);\
461 SET_DICT(type_in, meta_in, ic, idx_in);
462 SET_DICT(type_out, meta_out, oc, idx_out);
464 /* for input streams choose first matching stream */
465 if (type_in == 's') {
466 for (i = 0; i < ic->nb_streams; i++) {
467 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
468 meta_in = &ic->streams[i]->metadata;
474 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
479 if (type_out == 's') {
480 for (i = 0; i < oc->nb_streams; i++) {
481 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
482 meta_out = &oc->streams[i]->metadata;
483 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
488 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
493 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
495 OptionsContext *o = optctx;
497 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
498 struct tm time = *gmtime((time_t*)&recording_timestamp);
499 strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
500 parse_option(o, "metadata", buf, options);
502 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
503 "tag instead.\n", opt);
507 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
509 const AVCodecDescriptor *desc;
510 const char *codec_string = encoder ? "encoder" : "decoder";
514 avcodec_find_encoder_by_name(name) :
515 avcodec_find_decoder_by_name(name);
517 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
518 codec = encoder ? avcodec_find_encoder(desc->id) :
519 avcodec_find_decoder(desc->id);
521 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
522 codec_string, codec->name, desc->name);
526 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
529 if (codec->type != type) {
530 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
536 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
538 char *codec_name = NULL;
540 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
542 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
543 st->codec->codec_id = codec->id;
546 return avcodec_find_decoder(st->codec->codec_id);
549 /* Add all the streams from the given input file to the global
550 * list of input streams. */
551 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
554 char *next, *codec_tag = NULL;
556 for (i = 0; i < ic->nb_streams; i++) {
557 AVStream *st = ic->streams[i];
558 AVCodecContext *dec = st->codec;
559 InputStream *ist = av_mallocz(sizeof(*ist));
560 char *framerate = NULL;
565 GROW_ARRAY(input_streams, nb_input_streams);
566 input_streams[nb_input_streams - 1] = ist;
569 ist->file_index = nb_input_files;
571 st->discard = AVDISCARD_ALL;
574 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
576 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
578 uint32_t tag = strtol(codec_tag, &next, 0);
580 tag = AV_RL32(codec_tag);
581 st->codec->codec_tag = tag;
584 ist->dec = choose_decoder(o, ic, st);
585 ist->opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
587 ist->reinit_filters = -1;
588 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
590 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
592 switch (dec->codec_type) {
593 case AVMEDIA_TYPE_VIDEO:
595 ist->dec = avcodec_find_decoder(dec->codec_id);
596 if (av_codec_get_lowres(dec)) {
597 dec->flags |= CODEC_FLAG_EMU_EDGE;
600 ist->resample_height = dec->height;
601 ist->resample_width = dec->width;
602 ist->resample_pix_fmt = dec->pix_fmt;
604 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
605 if (framerate && av_parse_video_rate(&ist->framerate,
607 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
612 ist->top_field_first = -1;
613 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
616 case AVMEDIA_TYPE_AUDIO:
617 ist->guess_layout_max = INT_MAX;
618 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
619 guess_input_channel_layout(ist);
621 ist->resample_sample_fmt = dec->sample_fmt;
622 ist->resample_sample_rate = dec->sample_rate;
623 ist->resample_channels = dec->channels;
624 ist->resample_channel_layout = dec->channel_layout;
627 case AVMEDIA_TYPE_DATA:
628 case AVMEDIA_TYPE_SUBTITLE: {
629 char *canvas_size = NULL;
631 ist->dec = avcodec_find_decoder(dec->codec_id);
632 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
633 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
635 av_parse_video_size(&dec->width, &dec->height, canvas_size) < 0) {
636 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
641 case AVMEDIA_TYPE_ATTACHMENT:
642 case AVMEDIA_TYPE_UNKNOWN:
650 static void assert_file_overwrite(const char *filename)
652 if (file_overwrite && no_file_overwrite) {
653 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
657 if (!file_overwrite &&
658 (strchr(filename, ':') == NULL || filename[1] == ':' ||
659 av_strstart(filename, "file:", NULL))) {
660 if (avio_check(filename, 0) == 0) {
661 if (stdin_interaction && !no_file_overwrite) {
662 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
665 signal(SIGINT, SIG_DFL);
667 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
673 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
680 static void dump_attachment(AVStream *st, const char *filename)
683 AVIOContext *out = NULL;
684 AVDictionaryEntry *e;
686 if (!st->codec->extradata_size) {
687 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
688 nb_input_files - 1, st->index);
691 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
694 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
695 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
699 assert_file_overwrite(filename);
701 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
702 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
707 avio_write(out, st->codec->extradata, st->codec->extradata_size);
712 static int open_input_file(OptionsContext *o, const char *filename)
716 AVInputFormat *file_iformat = NULL;
721 AVDictionary *unused_opts = NULL;
722 AVDictionaryEntry *e = NULL;
723 int orig_nb_streams; // number of streams before avformat_find_stream_info
724 char * video_codec_name = NULL;
725 char * audio_codec_name = NULL;
726 char *subtitle_codec_name = NULL;
729 if (!(file_iformat = av_find_input_format(o->format))) {
730 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
735 if (!strcmp(filename, "-"))
738 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
739 strcmp(filename, "/dev/stdin");
741 /* get default parameters from command line */
742 ic = avformat_alloc_context();
744 print_error(filename, AVERROR(ENOMEM));
747 if (o->nb_audio_sample_rate) {
748 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
749 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
751 if (o->nb_audio_channels) {
752 /* because we set audio_channels based on both the "ac" and
753 * "channel_layout" options, we need to check that the specified
754 * demuxer actually has the "channels" option before setting it */
755 if (file_iformat && file_iformat->priv_class &&
756 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
757 AV_OPT_SEARCH_FAKE_OBJ)) {
758 snprintf(buf, sizeof(buf), "%d",
759 o->audio_channels[o->nb_audio_channels - 1].u.i);
760 av_dict_set(&o->g->format_opts, "channels", buf, 0);
763 if (o->nb_frame_rates) {
764 /* set the format-level framerate option;
765 * this is important for video grabbers, e.g. x11 */
766 if (file_iformat && file_iformat->priv_class &&
767 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
768 AV_OPT_SEARCH_FAKE_OBJ)) {
769 av_dict_set(&o->g->format_opts, "framerate",
770 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
773 if (o->nb_frame_sizes) {
774 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
776 if (o->nb_frame_pix_fmts)
777 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
779 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
780 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
781 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
783 ic->video_codec_id = video_codec_name ?
784 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
785 ic->audio_codec_id = audio_codec_name ?
786 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
787 ic->subtitle_codec_id= subtitle_codec_name ?
788 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
790 if (video_codec_name)
791 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
792 if (audio_codec_name)
793 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
794 if (subtitle_codec_name)
795 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
797 ic->flags |= AVFMT_FLAG_NONBLOCK;
798 ic->interrupt_callback = int_cb;
800 /* open the input file with generic avformat function */
801 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
803 print_error(filename, err);
806 assert_avoptions(o->g->format_opts);
808 /* apply forced codec ids */
809 for (i = 0; i < ic->nb_streams; i++)
810 choose_decoder(o, ic, ic->streams[i]);
812 /* Set AVCodecContext options for avformat_find_stream_info */
813 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
814 orig_nb_streams = ic->nb_streams;
816 /* If not enough info to get the stream parameters, we decode the
817 first frames to get it. (used in mpeg case for example) */
818 ret = avformat_find_stream_info(ic, opts);
820 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
821 avformat_close_input(&ic);
825 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
826 /* add the stream start time */
827 if (ic->start_time != AV_NOPTS_VALUE)
828 timestamp += ic->start_time;
830 /* if seeking requested, we execute it */
831 if (o->start_time != AV_NOPTS_VALUE) {
832 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
834 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
835 filename, (double)timestamp / AV_TIME_BASE);
839 /* update the current parameters so that they match the one of the input stream */
840 add_input_streams(o, ic);
842 /* dump the file content */
843 av_dump_format(ic, nb_input_files, filename, 0);
845 GROW_ARRAY(input_files, nb_input_files);
846 f = av_mallocz(sizeof(*f));
849 input_files[nb_input_files - 1] = f;
852 f->ist_index = nb_input_streams - ic->nb_streams;
853 f->start_time = o->start_time;
854 f->recording_time = o->recording_time;
855 f->input_ts_offset = o->input_ts_offset;
856 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
857 f->nb_streams = ic->nb_streams;
858 f->rate_emu = o->rate_emu;
859 f->accurate_seek = o->accurate_seek;
861 /* check if all codec options have been used */
862 unused_opts = strip_specifiers(o->g->codec_opts);
863 for (i = f->ist_index; i < nb_input_streams; i++) {
865 while ((e = av_dict_get(input_streams[i]->opts, "", e,
866 AV_DICT_IGNORE_SUFFIX)))
867 av_dict_set(&unused_opts, e->key, NULL, 0);
871 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
872 const AVClass *class = avcodec_get_class();
873 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
874 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
877 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
878 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
879 "input file #%d (%s) is not a decoding option.\n", e->key,
880 option->help ? option->help : "", nb_input_files - 1,
885 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
886 "input file #%d (%s) has not been used for any stream. The most "
887 "likely reason is either wrong type (e.g. a video option with "
888 "no video streams) or that it is a private option of some decoder "
889 "which was not actually used for any stream.\n", e->key,
890 option->help ? option->help : "", nb_input_files - 1, filename);
892 av_dict_free(&unused_opts);
894 for (i = 0; i < o->nb_dump_attachment; i++) {
897 for (j = 0; j < ic->nb_streams; j++) {
898 AVStream *st = ic->streams[j];
900 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
901 dump_attachment(st, o->dump_attachment[i].u.str);
905 for (i = 0; i < orig_nb_streams; i++)
906 av_dict_free(&opts[i]);
912 static uint8_t *get_line(AVIOContext *s)
918 if (avio_open_dyn_buf(&line) < 0) {
919 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
923 while ((c = avio_r8(s)) && c != '\n')
926 avio_close_dyn_buf(line, &buf);
931 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
935 const char *base[3] = { getenv("AVCONV_DATADIR"),
940 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
944 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
945 i != 1 ? "" : "/.avconv", codec_name, preset_name);
946 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
949 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
950 i != 1 ? "" : "/.avconv", preset_name);
951 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
957 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
959 char *codec_name = NULL;
961 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
963 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
964 NULL, ost->st->codec->codec_type);
965 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
966 } else if (!strcmp(codec_name, "copy"))
967 ost->stream_copy = 1;
969 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
970 ost->st->codec->codec_id = ost->enc->id;
974 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
977 AVStream *st = avformat_new_stream(oc, NULL);
978 int idx = oc->nb_streams - 1, ret = 0;
979 char *bsf = NULL, *next, *codec_tag = NULL;
980 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
985 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
989 if (oc->nb_streams - 1 < o->nb_streamid_map)
990 st->id = o->streamid_map[oc->nb_streams - 1];
992 GROW_ARRAY(output_streams, nb_output_streams);
993 if (!(ost = av_mallocz(sizeof(*ost))))
995 output_streams[nb_output_streams - 1] = ost;
997 ost->file_index = nb_output_files - 1;
1000 st->codec->codec_type = type;
1001 choose_encoder(o, oc, ost);
1003 AVIOContext *s = NULL;
1004 char *buf = NULL, *arg = NULL, *preset = NULL;
1006 ost->opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1008 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1009 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1012 if (!buf[0] || buf[0] == '#') {
1016 if (!(arg = strchr(buf, '='))) {
1017 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1021 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1023 } while (!s->eof_reached);
1027 av_log(NULL, AV_LOG_FATAL,
1028 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1029 preset, ost->file_index, ost->index);
1033 ost->opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1036 avcodec_get_context_defaults3(st->codec, ost->enc);
1037 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
1039 ost->max_frames = INT64_MAX;
1040 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1041 for (i = 0; i<o->nb_max_frames; i++) {
1042 char *p = o->max_frames[i].specifier;
1043 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1044 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1049 ost->copy_prior_start = -1;
1050 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1052 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1054 if (next = strchr(bsf, ','))
1056 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1057 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1061 bsfc_prev->next = bsfc;
1063 ost->bitstream_filters = bsfc;
1069 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1071 uint32_t tag = strtol(codec_tag, &next, 0);
1073 tag = AV_RL32(codec_tag);
1074 st->codec->codec_tag = tag;
1077 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1079 st->codec->flags |= CODEC_FLAG_QSCALE;
1080 st->codec->global_quality = FF_QP2LAMBDA * qscale;
1083 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1084 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
1086 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1088 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1089 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1090 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1092 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1094 ost->source_index = source_index;
1095 if (source_index >= 0) {
1096 ost->sync_ist = input_streams[source_index];
1097 input_streams[source_index]->discard = 0;
1098 input_streams[source_index]->st->discard = AVDISCARD_NONE;
1100 ost->last_mux_dts = AV_NOPTS_VALUE;
1105 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1108 const char *p = str;
1115 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1122 /* read file contents into a string */
1123 static uint8_t *read_file(const char *filename)
1125 AVIOContext *pb = NULL;
1126 AVIOContext *dyn_buf = NULL;
1127 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1128 uint8_t buf[1024], *str;
1131 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1135 ret = avio_open_dyn_buf(&dyn_buf);
1140 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1141 avio_write(dyn_buf, buf, ret);
1142 avio_w8(dyn_buf, 0);
1145 ret = avio_close_dyn_buf(dyn_buf, &str);
1151 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1154 AVStream *st = ost->st;
1155 char *filter = NULL, *filter_script = NULL;
1157 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1158 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1160 if (filter_script && filter) {
1161 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1162 "output stream #%d:%d.\n", nb_output_files, st->index);
1167 return read_file(filter_script);
1169 return av_strdup(filter);
1171 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1175 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1179 AVCodecContext *video_enc;
1180 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1182 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1184 video_enc = st->codec;
1186 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1187 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1188 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1192 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1193 if (frame_aspect_ratio) {
1195 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1196 q.num <= 0 || q.den <= 0) {
1197 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1200 ost->frame_aspect_ratio = q;
1203 if (!ost->stream_copy) {
1204 const char *p = NULL;
1205 char *frame_size = NULL;
1206 char *frame_pix_fmt = NULL;
1207 char *intra_matrix = NULL, *inter_matrix = NULL;
1211 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1212 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1213 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1217 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1218 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1219 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1220 ost->keep_pix_fmt = 1;
1221 if (!*++frame_pix_fmt)
1222 frame_pix_fmt = NULL;
1224 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1225 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1228 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1231 video_enc->gop_size = 0;
1232 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1234 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1235 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1238 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1240 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1242 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1243 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1246 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1249 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1250 for (i = 0; p; i++) {
1252 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1254 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1257 /* FIXME realloc failure */
1258 video_enc->rc_override =
1259 av_realloc(video_enc->rc_override,
1260 sizeof(RcOverride) * (i + 1));
1261 video_enc->rc_override[i].start_frame = start;
1262 video_enc->rc_override[i].end_frame = end;
1264 video_enc->rc_override[i].qscale = q;
1265 video_enc->rc_override[i].quality_factor = 1.0;
1268 video_enc->rc_override[i].qscale = 0;
1269 video_enc->rc_override[i].quality_factor = -q/100.0;
1274 video_enc->rc_override_count = i;
1275 video_enc->intra_dc_precision = intra_dc_precision - 8;
1278 video_enc->flags|= CODEC_FLAG_PSNR;
1281 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1284 video_enc->flags |= CODEC_FLAG_PASS1;
1285 av_dict_set(&ost->opts, "flags", "+pass1", AV_DICT_APPEND);
1288 video_enc->flags |= CODEC_FLAG_PASS2;
1289 av_dict_set(&ost->opts, "flags", "+pass2", AV_DICT_APPEND);
1293 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1294 if (ost->logfile_prefix &&
1295 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1298 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1299 if (ost->forced_keyframes)
1300 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1302 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1304 ost->top_field_first = -1;
1305 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1308 ost->avfilter = get_ost_filters(o, oc, ost);
1312 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1318 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1323 AVCodecContext *audio_enc;
1325 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1328 audio_enc = st->codec;
1329 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1331 if (!ost->stream_copy) {
1332 char *sample_fmt = NULL;
1334 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1336 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1338 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1339 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1343 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1345 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1346 ost->apad = av_strdup(ost->apad);
1348 ost->avfilter = get_ost_filters(o, oc, ost);
1352 /* check for channel mapping for this audio stream */
1353 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1354 AudioChannelMap *map = &o->audio_channel_maps[n];
1355 InputStream *ist = input_streams[ost->source_index];
1356 if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
1357 (map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1358 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1359 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1360 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1362 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1363 ost->file_index, ost->st->index);
1371 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1375 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1376 if (!ost->stream_copy) {
1377 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1384 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1386 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1387 ost->stream_copy = 1;
1392 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1396 AVCodecContext *subtitle_enc;
1398 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1400 subtitle_enc = st->codec;
1402 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1404 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1406 if (!ost->stream_copy) {
1407 char *frame_size = NULL;
1409 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1410 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1411 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1419 /* arg format is "output-stream-index:streamid-value". */
1420 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1422 OptionsContext *o = optctx;
1427 av_strlcpy(idx_str, arg, sizeof(idx_str));
1428 p = strchr(idx_str, ':');
1430 av_log(NULL, AV_LOG_FATAL,
1431 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1436 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1437 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1438 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1442 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1444 AVFormatContext *is = ifile->ctx;
1445 AVFormatContext *os = ofile->ctx;
1449 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1451 return AVERROR(ENOMEM);
1454 for (i = 0; i < is->nb_chapters; i++) {
1455 AVChapter *in_ch = is->chapters[i], *out_ch;
1456 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1457 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1458 AV_TIME_BASE_Q, in_ch->time_base);
1459 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1460 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1463 if (in_ch->end < ts_off)
1465 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1468 out_ch = av_mallocz(sizeof(AVChapter));
1470 return AVERROR(ENOMEM);
1472 out_ch->id = in_ch->id;
1473 out_ch->time_base = in_ch->time_base;
1474 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1475 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1478 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1480 os->chapters[os->nb_chapters++] = out_ch;
1485 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1488 AVFormatContext *ic = avformat_alloc_context();
1490 ic->interrupt_callback = int_cb;
1491 err = avformat_open_input(&ic, filename, NULL, NULL);
1494 /* copy stream format */
1495 for(i=0;i<ic->nb_streams;i++) {
1499 AVCodecContext *avctx;
1501 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1502 ost = new_output_stream(o, s, codec->type, -1);
1507 // FIXME: a more elegant solution is needed
1508 memcpy(st, ic->streams[i], sizeof(AVStream));
1510 st->info = av_malloc(sizeof(*st->info));
1511 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1513 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1515 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1516 choose_sample_fmt(st, codec);
1517 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1518 choose_pixel_fmt(st, codec, st->codec->pix_fmt);
1521 avformat_close_input(&ic);
1525 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1526 AVFormatContext *oc)
1530 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1531 ofilter->out_tmp->pad_idx)) {
1532 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1533 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1535 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1540 ost->source_index = -1;
1541 ost->filter = ofilter;
1545 if (ost->stream_copy) {
1546 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1547 "which is fed from a complex filtergraph. Filtering and streamcopy "
1548 "cannot be used together.\n", ost->file_index, ost->index);
1552 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1553 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1556 avfilter_inout_free(&ofilter->out_tmp);
1559 static int configure_complex_filters(void)
1563 for (i = 0; i < nb_filtergraphs; i++)
1564 if (!filtergraphs[i]->graph &&
1565 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1570 static int open_output_file(OptionsContext *o, const char *filename)
1572 AVFormatContext *oc;
1574 AVOutputFormat *file_oformat;
1578 AVDictionary *unused_opts = NULL;
1579 AVDictionaryEntry *e = NULL;
1581 if (configure_complex_filters() < 0) {
1582 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1586 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1587 o->stop_time = INT64_MAX;
1588 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1591 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1592 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1593 if (o->stop_time <= start_time) {
1594 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1595 o->stop_time = INT64_MAX;
1597 o->recording_time = o->stop_time - start_time;
1601 GROW_ARRAY(output_files, nb_output_files);
1602 of = av_mallocz(sizeof(*of));
1605 output_files[nb_output_files - 1] = of;
1607 of->ost_index = nb_output_streams;
1608 of->recording_time = o->recording_time;
1609 of->start_time = o->start_time;
1610 of->limit_filesize = o->limit_filesize;
1611 of->shortest = o->shortest;
1612 av_dict_copy(&of->opts, o->g->format_opts, 0);
1614 if (!strcmp(filename, "-"))
1617 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1619 print_error(filename, err);
1624 if (o->recording_time != INT64_MAX)
1625 oc->duration = o->recording_time;
1627 file_oformat= oc->oformat;
1628 oc->interrupt_callback = int_cb;
1630 /* create streams for all unlabeled output pads */
1631 for (i = 0; i < nb_filtergraphs; i++) {
1632 FilterGraph *fg = filtergraphs[i];
1633 for (j = 0; j < fg->nb_outputs; j++) {
1634 OutputFilter *ofilter = fg->outputs[j];
1636 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1639 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1640 ofilter->out_tmp->pad_idx)) {
1641 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1642 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1643 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1645 init_output_filter(ofilter, o, oc);
1649 /* ffserver seeking with date=... needs a date reference */
1650 if (!strcmp(file_oformat->name, "ffm") &&
1651 av_strstart(filename, "http:", NULL)) {
1652 int err = parse_option(o, "metadata", "creation_time=now", options);
1654 print_error(filename, err);
1659 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1660 av_strstart(filename, "http:", NULL)) {
1662 /* special case for files sent to ffserver: we get the stream
1663 parameters from ffserver */
1664 int err = read_ffserver_streams(o, oc, filename);
1666 print_error(filename, err);
1669 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1670 ost = output_streams[j];
1671 for (i = 0; i < nb_input_streams; i++) {
1672 ist = input_streams[i];
1673 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1675 ost->source_index= i;
1676 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1677 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1679 ist->st->discard = AVDISCARD_NONE;
1684 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
1688 } else if (!o->nb_stream_maps) {
1689 char *subtitle_codec_name = NULL;
1690 /* pick the "best" stream of each type */
1692 /* video: highest resolution */
1693 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1694 int area = 0, idx = -1;
1695 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1696 for (i = 0; i < nb_input_streams; i++) {
1698 ist = input_streams[i];
1699 new_area = ist->st->codec->width * ist->st->codec->height;
1700 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1702 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1704 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1711 new_video_stream(o, oc, idx);
1714 /* audio: most channels */
1715 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1716 int channels = 0, idx = -1;
1717 for (i = 0; i < nb_input_streams; i++) {
1718 ist = input_streams[i];
1719 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1720 ist->st->codec->channels > channels) {
1721 channels = ist->st->codec->channels;
1726 new_audio_stream(o, oc, idx);
1729 /* subtitles: pick first */
1730 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1731 if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
1732 for (i = 0; i < nb_input_streams; i++)
1733 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1734 new_subtitle_stream(o, oc, i);
1738 /* do something with data? */
1740 for (i = 0; i < o->nb_stream_maps; i++) {
1741 StreamMap *map = &o->stream_maps[i];
1746 if (map->linklabel) {
1748 OutputFilter *ofilter = NULL;
1751 for (j = 0; j < nb_filtergraphs; j++) {
1752 fg = filtergraphs[j];
1753 for (k = 0; k < fg->nb_outputs; k++) {
1754 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1755 if (out && !strcmp(out->name, map->linklabel)) {
1756 ofilter = fg->outputs[k];
1763 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1764 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1767 init_output_filter(ofilter, o, oc);
1769 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1771 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1772 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1774 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1776 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1778 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1781 switch (ist->st->codec->codec_type) {
1782 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1783 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1784 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1785 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1786 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1788 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1789 map->file_index, map->stream_index);
1796 /* handle attached files */
1797 for (i = 0; i < o->nb_attachments; i++) {
1799 uint8_t *attachment;
1803 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1804 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1808 if ((len = avio_size(pb)) <= 0) {
1809 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1813 if (!(attachment = av_malloc(len))) {
1814 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1818 avio_read(pb, attachment, len);
1820 ost = new_attachment_stream(o, oc, -1);
1821 ost->stream_copy = 0;
1822 ost->attachment_filename = o->attachments[i];
1824 ost->st->codec->extradata = attachment;
1825 ost->st->codec->extradata_size = len;
1827 p = strrchr(o->attachments[i], '/');
1828 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1832 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1833 AVDictionaryEntry *e;
1834 ost = output_streams[i];
1836 if ((ost->stream_copy || ost->attachment_filename)
1837 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1838 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1839 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1843 /* check if all codec options have been used */
1844 unused_opts = strip_specifiers(o->g->codec_opts);
1845 for (i = of->ost_index; i < nb_output_streams; i++) {
1847 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1848 AV_DICT_IGNORE_SUFFIX)))
1849 av_dict_set(&unused_opts, e->key, NULL, 0);
1853 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1854 const AVClass *class = avcodec_get_class();
1855 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1856 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1859 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1860 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1861 "output file #%d (%s) is not an encoding option.\n", e->key,
1862 option->help ? option->help : "", nb_output_files - 1,
1867 // gop_timecode is injected by generic code but not always used
1868 if (!strcmp(e->key, "gop_timecode"))
1871 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1872 "output file #%d (%s) has not been used for any stream. The most "
1873 "likely reason is either wrong type (e.g. a video option with "
1874 "no video streams) or that it is a private option of some encoder "
1875 "which was not actually used for any stream.\n", e->key,
1876 option->help ? option->help : "", nb_output_files - 1, filename);
1878 av_dict_free(&unused_opts);
1880 /* check filename in case of an image number is expected */
1881 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1882 if (!av_filename_number_test(oc->filename)) {
1883 print_error(oc->filename, AVERROR(EINVAL));
1888 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1889 /* test if it already exists to avoid losing precious files */
1890 assert_file_overwrite(filename);
1893 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1894 &oc->interrupt_callback,
1896 print_error(filename, err);
1899 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
1900 assert_file_overwrite(filename);
1902 if (o->mux_preload) {
1904 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1905 av_dict_set(&of->opts, "preload", buf, 0);
1907 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1910 for (i = 0; i < o->nb_metadata_map; i++) {
1912 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1914 if (in_file_index >= nb_input_files) {
1915 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1918 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1919 in_file_index >= 0 ?
1920 input_files[in_file_index]->ctx : NULL, o);
1924 if (o->chapters_input_file >= nb_input_files) {
1925 if (o->chapters_input_file == INT_MAX) {
1926 /* copy chapters from the first input file that has them*/
1927 o->chapters_input_file = -1;
1928 for (i = 0; i < nb_input_files; i++)
1929 if (input_files[i]->ctx->nb_chapters) {
1930 o->chapters_input_file = i;
1934 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1935 o->chapters_input_file);
1939 if (o->chapters_input_file >= 0)
1940 copy_chapters(input_files[o->chapters_input_file], of,
1941 !o->metadata_chapters_manual);
1943 /* copy global metadata by default */
1944 if (!o->metadata_global_manual && nb_input_files){
1945 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1946 AV_DICT_DONT_OVERWRITE);
1947 if(o->recording_time != INT64_MAX)
1948 av_dict_set(&oc->metadata, "duration", NULL, 0);
1949 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
1951 if (!o->metadata_streams_manual)
1952 for (i = of->ost_index; i < nb_output_streams; i++) {
1954 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1956 ist = input_streams[output_streams[i]->source_index];
1957 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1960 /* process manually set metadata */
1961 for (i = 0; i < o->nb_metadata; i++) {
1964 const char *stream_spec;
1965 int index = 0, j, ret = 0;
1967 val = strchr(o->metadata[i].u.str, '=');
1969 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1970 o->metadata[i].u.str);
1975 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1977 for (j = 0; j < oc->nb_streams; j++) {
1978 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1979 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1990 if (index < 0 || index >= oc->nb_chapters) {
1991 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1994 m = &oc->chapters[index]->metadata;
1997 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2000 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2007 static int opt_target(void *optctx, const char *opt, const char *arg)
2009 OptionsContext *o = optctx;
2010 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2011 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2013 if (!strncmp(arg, "pal-", 4)) {
2016 } else if (!strncmp(arg, "ntsc-", 5)) {
2019 } else if (!strncmp(arg, "film-", 5)) {
2023 /* Try to determine PAL/NTSC by peeking in the input files */
2024 if (nb_input_files) {
2026 for (j = 0; j < nb_input_files; j++) {
2027 for (i = 0; i < input_files[j]->nb_streams; i++) {
2028 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2029 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2031 fr = c->time_base.den * 1000 / c->time_base.num;
2035 } else if ((fr == 29970) || (fr == 23976)) {
2040 if (norm != UNKNOWN)
2044 if (norm != UNKNOWN)
2045 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2048 if (norm == UNKNOWN) {
2049 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2050 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2051 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2055 if (!strcmp(arg, "vcd")) {
2056 opt_video_codec(o, "c:v", "mpeg1video");
2057 opt_audio_codec(o, "c:a", "mp2");
2058 parse_option(o, "f", "vcd", options);
2059 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2061 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2062 parse_option(o, "r", frame_rates[norm], options);
2063 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2065 av_dict_set(&o->g->codec_opts, "b:v", "1150000", 0);
2066 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", 0);
2067 av_dict_set(&o->g->codec_opts, "minrate", "1150000", 0);
2068 av_dict_set(&o->g->codec_opts, "bufsize", "327680", 0); // 40*1024*8;
2070 av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
2071 parse_option(o, "ar", "44100", options);
2072 parse_option(o, "ac", "2", options);
2074 av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
2075 av_dict_set(&o->g->format_opts, "muxrate", "1411200", 0); // 2352 * 75 * 8;
2077 /* We have to offset the PTS, so that it is consistent with the SCR.
2078 SCR starts at 36000, but the first two packs contain only padding
2079 and the first pack from the other stream, respectively, may also have
2080 been written before.
2081 So the real data starts at SCR 36000+3*1200. */
2082 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2083 } else if (!strcmp(arg, "svcd")) {
2085 opt_video_codec(o, "c:v", "mpeg2video");
2086 opt_audio_codec(o, "c:a", "mp2");
2087 parse_option(o, "f", "svcd", options);
2089 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2090 parse_option(o, "r", frame_rates[norm], options);
2091 parse_option(o, "pix_fmt", "yuv420p", options);
2092 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2094 av_dict_set(&o->g->codec_opts, "b:v", "2040000", 0);
2095 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", 0);
2096 av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1145000;
2097 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
2098 av_dict_set(&o->g->codec_opts, "scan_offset", "1", 0);
2100 av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
2101 parse_option(o, "ar", "44100", options);
2103 av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
2105 } else if (!strcmp(arg, "dvd")) {
2107 opt_video_codec(o, "c:v", "mpeg2video");
2108 opt_audio_codec(o, "c:a", "ac3");
2109 parse_option(o, "f", "dvd", options);
2111 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2112 parse_option(o, "r", frame_rates[norm], options);
2113 parse_option(o, "pix_fmt", "yuv420p", options);
2114 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2116 av_dict_set(&o->g->codec_opts, "b:v", "6000000", 0);
2117 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", 0);
2118 av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1500000;
2119 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
2121 av_dict_set(&o->g->format_opts, "packetsize", "2048", 0); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2122 av_dict_set(&o->g->format_opts, "muxrate", "10080000", 0); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2124 av_dict_set(&o->g->codec_opts, "b:a", "448000", 0);
2125 parse_option(o, "ar", "48000", options);
2127 } else if (!strncmp(arg, "dv", 2)) {
2129 parse_option(o, "f", "dv", options);
2131 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2132 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2133 norm == PAL ? "yuv420p" : "yuv411p", options);
2134 parse_option(o, "r", frame_rates[norm], options);
2136 parse_option(o, "ar", "48000", options);
2137 parse_option(o, "ac", "2", options);
2140 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2141 return AVERROR(EINVAL);
2146 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2148 av_free (vstats_filename);
2149 vstats_filename = av_strdup (arg);
2153 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2156 time_t today2 = time(NULL);
2157 struct tm *today = localtime(&today2);
2159 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2161 return opt_vstats_file(NULL, opt, filename);
2164 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2166 OptionsContext *o = optctx;
2167 return parse_option(o, "frames:v", arg, options);
2170 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2172 OptionsContext *o = optctx;
2173 return parse_option(o, "frames:a", arg, options);
2176 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2178 OptionsContext *o = optctx;
2179 return parse_option(o, "frames:d", arg, options);
2182 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2185 AVDictionary *cbak = codec_opts;
2186 AVDictionary *fbak = format_opts;
2190 ret = opt_default(NULL, opt, arg);
2192 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2193 av_dict_copy(&o->g->format_opts, format_opts, 0);
2194 av_dict_free(&codec_opts);
2195 av_dict_free(&format_opts);
2202 static int opt_preset(void *optctx, const char *opt, const char *arg)
2204 OptionsContext *o = optctx;
2206 char filename[1000], line[1000], tmp_line[1000];
2207 const char *codec_name = NULL;
2211 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2213 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2214 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2215 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2217 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2221 while (fgets(line, sizeof(line), f)) {
2222 char *key = tmp_line, *value, *endptr;
2224 if (strcspn(line, "#\n\r") == 0)
2226 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2227 if (!av_strtok(key, "=", &value) ||
2228 !av_strtok(value, "\r\n", &endptr)) {
2229 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2232 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2234 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2235 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2236 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2237 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2238 else if (opt_default_new(o, key, value) < 0) {
2239 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2240 filename, line, key, value);
2250 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2252 OptionsContext *o = optctx;
2253 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2254 int ret = parse_option(o, s, arg, options);
2259 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2261 OptionsContext *o = optctx;
2262 if(!strcmp(opt, "b")){
2263 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2264 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2267 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2271 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2273 OptionsContext *o = optctx;
2276 if(!strcmp(opt, "qscale")){
2277 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2278 return parse_option(o, "q:v", arg, options);
2280 s = av_asprintf("q%s", opt + 6);
2281 ret = parse_option(o, s, arg, options);
2286 static int opt_profile(void *optctx, const char *opt, const char *arg)
2288 OptionsContext *o = optctx;
2289 if(!strcmp(opt, "profile")){
2290 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2291 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2294 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2298 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2300 OptionsContext *o = optctx;
2301 return parse_option(o, "filter:v", arg, options);
2304 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2306 OptionsContext *o = optctx;
2307 return parse_option(o, "filter:a", arg, options);
2310 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2312 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2313 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2314 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2315 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2317 if (video_sync_method == VSYNC_AUTO)
2318 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2322 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2324 OptionsContext *o = optctx;
2325 char *tcr = av_asprintf("timecode=%s", arg);
2326 int ret = parse_option(o, "metadata:g", tcr, options);
2328 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2333 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2335 OptionsContext *o = optctx;
2336 char layout_str[32];
2339 int ret, channels, ac_str_size;
2342 layout = av_get_channel_layout(arg);
2344 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2345 return AVERROR(EINVAL);
2347 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2348 ret = opt_default_new(o, opt, layout_str);
2352 /* set 'ac' option based on channel layout */
2353 channels = av_get_channel_layout_nb_channels(layout);
2354 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2355 stream_str = strchr(opt, ':');
2356 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2357 ac_str = av_mallocz(ac_str_size);
2359 return AVERROR(ENOMEM);
2360 av_strlcpy(ac_str, "ac", 3);
2362 av_strlcat(ac_str, stream_str, ac_str_size);
2363 ret = parse_option(o, ac_str, layout_str, options);
2369 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2371 OptionsContext *o = optctx;
2372 return parse_option(o, "q:a", arg, options);
2375 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2377 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2378 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2379 return AVERROR(ENOMEM);
2380 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2381 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2382 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2383 return AVERROR(ENOMEM);
2387 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2389 uint8_t *graph_desc = read_file(arg);
2391 return AVERROR(EINVAL);
2393 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2394 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2395 return AVERROR(ENOMEM);
2396 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2397 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2401 void show_help_default(const char *opt, const char *arg)
2403 /* per-file options have at least one of those set */
2404 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2405 int show_advanced = 0, show_avoptions = 0;
2408 if (!strcmp(opt, "long"))
2410 else if (!strcmp(opt, "full"))
2411 show_advanced = show_avoptions = 1;
2413 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2418 printf("Getting help:\n"
2419 " -h -- print basic options\n"
2420 " -h long -- print more options\n"
2421 " -h full -- print all options (including all format and codec specific options, very long)\n"
2422 " See man %s for detailed description of the options.\n"
2423 "\n", program_name);
2425 show_help_options(options, "Print help / information / capabilities:",
2428 show_help_options(options, "Global options (affect whole program "
2429 "instead of just one file:",
2430 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2432 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2433 per_file | OPT_EXIT, 0);
2435 show_help_options(options, "Per-file main options:", 0,
2436 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2437 OPT_EXIT, per_file);
2439 show_help_options(options, "Advanced per-file options:",
2440 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2442 show_help_options(options, "Video options:",
2443 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2445 show_help_options(options, "Advanced Video options:",
2446 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2448 show_help_options(options, "Audio options:",
2449 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2451 show_help_options(options, "Advanced Audio options:",
2452 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2453 show_help_options(options, "Subtitle options:",
2454 OPT_SUBTITLE, 0, 0);
2457 if (show_avoptions) {
2458 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2459 show_help_children(avcodec_get_class(), flags);
2460 show_help_children(avformat_get_class(), flags);
2462 show_help_children(sws_get_class(), flags);
2464 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2465 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2469 void show_usage(void)
2471 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2472 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2473 av_log(NULL, AV_LOG_INFO, "\n");
2481 static const OptionGroupDef groups[] = {
2482 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2483 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2486 static int open_files(OptionGroupList *l, const char *inout,
2487 int (*open_file)(OptionsContext*, const char*))
2491 for (i = 0; i < l->nb_groups; i++) {
2492 OptionGroup *g = &l->groups[i];
2498 ret = parse_optgroup(&o, g);
2500 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2501 "%s.\n", inout, g->arg);
2505 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2506 ret = open_file(&o, g->arg);
2509 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2513 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2519 int ffmpeg_parse_options(int argc, char **argv)
2521 OptionParseContext octx;
2525 memset(&octx, 0, sizeof(octx));
2527 /* split the commandline into an internal representation */
2528 ret = split_commandline(&octx, argc, argv, options, groups,
2529 FF_ARRAY_ELEMS(groups));
2531 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2535 /* apply global options */
2536 ret = parse_optgroup(NULL, &octx.global_opts);
2538 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2542 /* open input files */
2543 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2545 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2549 /* open output files */
2550 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2552 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2557 uninit_parse_context(&octx);
2559 av_strerror(ret, error, sizeof(error));
2560 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2565 static int opt_progress(void *optctx, const char *opt, const char *arg)
2567 AVIOContext *avio = NULL;
2570 if (!strcmp(arg, "-"))
2572 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2574 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2575 arg, av_err2str(ret));
2578 progress_avio = avio;
2582 #define OFFSET(x) offsetof(OptionsContext, x)
2583 const OptionDef options[] = {
2585 #include "cmdutils_common_opts.h"
2586 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2587 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2588 "force format", "fmt" },
2589 { "y", OPT_BOOL, { &file_overwrite },
2590 "overwrite output files" },
2591 { "n", OPT_BOOL, { &no_file_overwrite },
2592 "never overwrite output files" },
2593 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2594 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2595 "codec name", "codec" },
2596 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2597 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2598 "codec name", "codec" },
2599 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2600 OPT_OUTPUT, { .off = OFFSET(presets) },
2601 "preset name", "preset" },
2602 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2603 OPT_OUTPUT, { .func_arg = opt_map },
2604 "set input stream mapping",
2605 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2606 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2607 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2608 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2609 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2610 "set metadata information of outfile from infile",
2611 "outfile[,metadata]:infile[,metadata]" },
2612 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2613 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2614 "set chapters mapping", "input_file_index" },
2615 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2616 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2617 "record or transcode \"duration\" seconds of audio/video",
2619 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2620 "record or transcode stop time", "time_stop" },
2621 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2622 "set the limit file size in bytes", "limit_size" },
2623 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2624 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2625 "set the start time offset", "time_off" },
2626 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2627 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2628 "enable/disable accurate seeking with -ss" },
2629 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2630 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2631 "set the input ts offset", "time_off" },
2632 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2633 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2634 "set the input ts scale", "scale" },
2635 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2636 "set the recording timestamp ('now' to set the current time)", "time" },
2637 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2638 "add metadata", "string=string" },
2639 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2640 OPT_OUTPUT, { .func_arg = opt_data_frames },
2641 "set the number of data frames to record", "number" },
2642 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2643 "add timings for benchmarking" },
2644 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2645 "add timings for each task" },
2646 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2647 "write program-readable progress information", "url" },
2648 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2649 "enable or disable interaction on standard input" },
2650 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2651 "set max runtime in seconds", "limit" },
2652 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2653 "dump each input packet" },
2654 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2655 "when dumping packets, also dump the payload" },
2656 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2657 OPT_INPUT, { .off = OFFSET(rate_emu) },
2658 "read input at native frame rate", "" },
2659 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2660 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2661 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2662 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2663 "video sync method", "" },
2664 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2665 "audio sync method", "" },
2666 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2667 "audio drift threshold", "threshold" },
2668 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2669 "copy timestamps" },
2670 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2671 "copy input stream time base when stream copying", "mode" },
2672 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2673 OPT_OUTPUT, { .off = OFFSET(shortest) },
2674 "finish encoding within shortest input" },
2675 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2676 OPT_OUTPUT, { .off = OFFSET(apad) },
2678 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2679 "timestamp discontinuity delta threshold", "threshold" },
2680 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2681 "timestamp error delta threshold", "threshold" },
2682 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2683 "exit on error", "error" },
2684 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2685 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2686 "copy initial non-keyframes" },
2687 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2688 "copy or discard frames before start time" },
2689 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2690 "set the number of frames to record", "number" },
2691 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2692 OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(codec_tags) },
2693 "force codec tag/fourcc", "fourcc/tag" },
2694 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2695 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2696 "use fixed quality scale (VBR)", "q" },
2697 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2698 OPT_OUTPUT, { .func_arg = opt_qscale },
2699 "use fixed quality scale (VBR)", "q" },
2700 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2701 "set profile", "profile" },
2702 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2703 "set stream filtergraph", "filter_graph" },
2704 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2705 "read stream filtergraph description from a file", "filename" },
2706 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2707 "reinit filtergraph on input parameter changes", "" },
2708 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2709 "create a complex filtergraph", "graph_description" },
2710 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2711 "create a complex filtergraph", "graph_description" },
2712 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2713 "read complex filtergraph description from a file", "filename" },
2714 { "stats", OPT_BOOL, { &print_stats },
2715 "print progress report during encoding", },
2716 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2717 OPT_OUTPUT, { .func_arg = opt_attach },
2718 "add an attachment to the output file", "filename" },
2719 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2720 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2721 "extract an attachment into a file", "filename" },
2722 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2723 "print timestamp debugging info" },
2724 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2725 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2728 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2729 "set the number of video frames to record", "number" },
2730 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2731 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2732 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2733 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2734 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2735 "set frame size (WxH or abbreviation)", "size" },
2736 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2737 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2738 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2739 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2740 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2741 "set pixel format", "format" },
2742 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2743 "set the number of bits per raw sample", "number" },
2744 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2745 "deprecated use -g 1" },
2746 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2748 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2749 "discard threshold", "n" },
2750 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2751 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2752 "rate control override for specific intervals", "override" },
2753 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2754 OPT_OUTPUT, { .func_arg = opt_video_codec },
2755 "force video codec ('copy' to copy stream)", "codec" },
2756 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2758 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2760 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2761 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2762 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2763 "select the pass number (1 to 3)", "n" },
2764 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2765 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2766 "select two pass log file name prefix", "prefix" },
2767 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2768 "this option is deprecated, use the yadif filter instead" },
2769 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2770 "calculate PSNR of compressed frames" },
2771 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2772 "dump video coding statistics to file" },
2773 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2774 "dump video coding statistics to file", "file" },
2775 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2776 "set video filters", "filter_graph" },
2777 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2778 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2779 "specify intra matrix coeffs", "matrix" },
2780 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2781 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2782 "specify inter matrix coeffs", "matrix" },
2783 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2784 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2785 "top=1/bottom=0/auto=-1 field first", "" },
2786 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2787 "intra_dc_precision", "precision" },
2788 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2789 OPT_OUTPUT, { .func_arg = opt_old2new },
2790 "force video tag/fourcc", "fourcc/tag" },
2791 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2792 "show QP histogram" },
2793 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2794 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2795 "force the selected framerate, disable the best supported framerate selection" },
2796 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2797 OPT_OUTPUT, { .func_arg = opt_streamid },
2798 "set the value of an outfile streamid", "streamIndex:value" },
2799 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2800 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2801 "force key frames at specified timestamps", "timestamps" },
2802 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2803 "video bitrate (please use -b:v)", "bitrate" },
2806 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2807 "set the number of audio frames to record", "number" },
2808 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2809 "set audio quality (codec-specific)", "quality", },
2810 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2811 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2812 "set audio sampling rate (in Hz)", "rate" },
2813 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2814 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2815 "set number of audio channels", "channels" },
2816 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2818 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2819 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2820 "force audio codec ('copy' to copy stream)", "codec" },
2821 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2822 OPT_OUTPUT, { .func_arg = opt_old2new },
2823 "force audio tag/fourcc", "fourcc/tag" },
2824 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2825 "change audio volume (256=normal)" , "volume" },
2826 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2827 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2828 "set sample format", "format" },
2829 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2830 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2831 "set channel layout", "layout" },
2832 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2833 "set audio filters", "filter_graph" },
2834 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2835 "set the maximum number of channels to try to guess the channel layout" },
2837 /* subtitle options */
2838 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2839 "disable subtitle" },
2840 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2841 "force subtitle codec ('copy' to copy stream)", "codec" },
2842 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2843 , "force subtitle tag/fourcc", "fourcc/tag" },
2844 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2845 "fix subtitles duration" },
2846 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2847 "set canvas size (WxH or abbreviation)", "size" },
2850 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2851 "deprecated, use -channel", "channel" },
2852 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2853 "deprecated, use -standard", "standard" },
2854 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2857 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2858 "set the maximum demux-decode delay", "seconds" },
2859 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2860 "set the initial demux-decode delay", "seconds" },
2861 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
2862 "override the options from ffserver", "" },
2864 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2865 "A comma-separated list of bitstream filters", "bitstream_filters" },
2866 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2867 "deprecated", "audio bitstream_filters" },
2868 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2869 "deprecated", "video bitstream_filters" },
2871 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2872 "set the audio options to the indicated preset", "preset" },
2873 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2874 "set the video options to the indicated preset", "preset" },
2875 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2876 "set the subtitle options to the indicated preset", "preset" },
2877 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2878 "set options from indicated preset file", "filename" },
2879 /* data codec support */
2880 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2881 "force data codec ('copy' to copy stream)", "codec" },
2882 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },