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->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
856 f->nb_streams = ic->nb_streams;
857 f->rate_emu = o->rate_emu;
858 f->accurate_seek = o->accurate_seek;
860 /* check if all codec options have been used */
861 unused_opts = strip_specifiers(o->g->codec_opts);
862 for (i = f->ist_index; i < nb_input_streams; i++) {
864 while ((e = av_dict_get(input_streams[i]->opts, "", e,
865 AV_DICT_IGNORE_SUFFIX)))
866 av_dict_set(&unused_opts, e->key, NULL, 0);
870 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
871 const AVClass *class = avcodec_get_class();
872 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
873 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
876 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
877 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
878 "input file #%d (%s) is not a decoding option.\n", e->key,
879 option->help ? option->help : "", nb_input_files - 1,
884 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
885 "input file #%d (%s) has not been used for any stream. The most "
886 "likely reason is either wrong type (e.g. a video option with "
887 "no video streams) or that it is a private option of some decoder "
888 "which was not actually used for any stream.\n", e->key,
889 option->help ? option->help : "", nb_input_files - 1, filename);
891 av_dict_free(&unused_opts);
893 for (i = 0; i < o->nb_dump_attachment; i++) {
896 for (j = 0; j < ic->nb_streams; j++) {
897 AVStream *st = ic->streams[j];
899 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
900 dump_attachment(st, o->dump_attachment[i].u.str);
904 for (i = 0; i < orig_nb_streams; i++)
905 av_dict_free(&opts[i]);
911 static uint8_t *get_line(AVIOContext *s)
917 if (avio_open_dyn_buf(&line) < 0) {
918 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
922 while ((c = avio_r8(s)) && c != '\n')
925 avio_close_dyn_buf(line, &buf);
930 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
934 const char *base[3] = { getenv("AVCONV_DATADIR"),
939 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
943 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
944 i != 1 ? "" : "/.avconv", codec_name, preset_name);
945 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
948 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
949 i != 1 ? "" : "/.avconv", preset_name);
950 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
956 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
958 char *codec_name = NULL;
960 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
962 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
963 NULL, ost->st->codec->codec_type);
964 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
965 } else if (!strcmp(codec_name, "copy"))
966 ost->stream_copy = 1;
968 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
969 ost->st->codec->codec_id = ost->enc->id;
973 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
976 AVStream *st = avformat_new_stream(oc, NULL);
977 int idx = oc->nb_streams - 1, ret = 0;
978 char *bsf = NULL, *next, *codec_tag = NULL;
979 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
984 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
988 if (oc->nb_streams - 1 < o->nb_streamid_map)
989 st->id = o->streamid_map[oc->nb_streams - 1];
991 GROW_ARRAY(output_streams, nb_output_streams);
992 if (!(ost = av_mallocz(sizeof(*ost))))
994 output_streams[nb_output_streams - 1] = ost;
996 ost->file_index = nb_output_files - 1;
999 st->codec->codec_type = type;
1000 choose_encoder(o, oc, ost);
1002 AVIOContext *s = NULL;
1003 char *buf = NULL, *arg = NULL, *preset = NULL;
1005 ost->opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1007 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1008 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1011 if (!buf[0] || buf[0] == '#') {
1015 if (!(arg = strchr(buf, '='))) {
1016 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1020 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1022 } while (!s->eof_reached);
1026 av_log(NULL, AV_LOG_FATAL,
1027 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1028 preset, ost->file_index, ost->index);
1032 ost->opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1035 avcodec_get_context_defaults3(st->codec, ost->enc);
1036 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
1038 ost->max_frames = INT64_MAX;
1039 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1040 for (i = 0; i<o->nb_max_frames; i++) {
1041 char *p = o->max_frames[i].specifier;
1042 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1043 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1048 ost->copy_prior_start = -1;
1049 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1051 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1053 if (next = strchr(bsf, ','))
1055 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1056 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1060 bsfc_prev->next = bsfc;
1062 ost->bitstream_filters = bsfc;
1068 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1070 uint32_t tag = strtol(codec_tag, &next, 0);
1072 tag = AV_RL32(codec_tag);
1073 st->codec->codec_tag = tag;
1076 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1078 st->codec->flags |= CODEC_FLAG_QSCALE;
1079 st->codec->global_quality = FF_QP2LAMBDA * qscale;
1082 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1083 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
1085 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1087 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1088 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1089 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1091 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1093 ost->source_index = source_index;
1094 if (source_index >= 0) {
1095 ost->sync_ist = input_streams[source_index];
1096 input_streams[source_index]->discard = 0;
1097 input_streams[source_index]->st->discard = AVDISCARD_NONE;
1099 ost->last_mux_dts = AV_NOPTS_VALUE;
1104 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1107 const char *p = str;
1114 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1121 /* read file contents into a string */
1122 static uint8_t *read_file(const char *filename)
1124 AVIOContext *pb = NULL;
1125 AVIOContext *dyn_buf = NULL;
1126 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1127 uint8_t buf[1024], *str;
1130 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1134 ret = avio_open_dyn_buf(&dyn_buf);
1139 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1140 avio_write(dyn_buf, buf, ret);
1141 avio_w8(dyn_buf, 0);
1144 ret = avio_close_dyn_buf(dyn_buf, &str);
1150 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1153 AVStream *st = ost->st;
1154 char *filter = NULL, *filter_script = NULL;
1156 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1157 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1159 if (filter_script && filter) {
1160 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1161 "output stream #%d:%d.\n", nb_output_files, st->index);
1166 return read_file(filter_script);
1168 return av_strdup(filter);
1170 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1174 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1178 AVCodecContext *video_enc;
1179 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1181 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1183 video_enc = st->codec;
1185 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1186 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1187 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1191 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1192 if (frame_aspect_ratio) {
1194 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1195 q.num <= 0 || q.den <= 0) {
1196 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1199 ost->frame_aspect_ratio = q;
1202 if (!ost->stream_copy) {
1203 const char *p = NULL;
1204 char *frame_size = NULL;
1205 char *frame_pix_fmt = NULL;
1206 char *intra_matrix = NULL, *inter_matrix = NULL;
1210 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1211 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1212 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1216 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1217 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1218 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1219 ost->keep_pix_fmt = 1;
1220 if (!*++frame_pix_fmt)
1221 frame_pix_fmt = NULL;
1223 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1224 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1227 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1230 video_enc->gop_size = 0;
1231 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1233 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1234 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1237 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1239 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1241 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1242 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1245 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1248 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1249 for (i = 0; p; i++) {
1251 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1253 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1256 /* FIXME realloc failure */
1257 video_enc->rc_override =
1258 av_realloc(video_enc->rc_override,
1259 sizeof(RcOverride) * (i + 1));
1260 video_enc->rc_override[i].start_frame = start;
1261 video_enc->rc_override[i].end_frame = end;
1263 video_enc->rc_override[i].qscale = q;
1264 video_enc->rc_override[i].quality_factor = 1.0;
1267 video_enc->rc_override[i].qscale = 0;
1268 video_enc->rc_override[i].quality_factor = -q/100.0;
1273 video_enc->rc_override_count = i;
1274 video_enc->intra_dc_precision = intra_dc_precision - 8;
1277 video_enc->flags|= CODEC_FLAG_PSNR;
1280 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1283 video_enc->flags |= CODEC_FLAG_PASS1;
1284 av_dict_set(&ost->opts, "flags", "+pass1", AV_DICT_APPEND);
1287 video_enc->flags |= CODEC_FLAG_PASS2;
1288 av_dict_set(&ost->opts, "flags", "+pass2", AV_DICT_APPEND);
1292 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1293 if (ost->logfile_prefix &&
1294 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1297 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1298 if (ost->forced_keyframes)
1299 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1301 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1303 ost->top_field_first = -1;
1304 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1307 ost->avfilter = get_ost_filters(o, oc, ost);
1311 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1317 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1322 AVCodecContext *audio_enc;
1324 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1327 audio_enc = st->codec;
1328 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1330 if (!ost->stream_copy) {
1331 char *sample_fmt = NULL;
1333 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1335 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1337 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1338 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1342 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1344 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1345 ost->apad = av_strdup(ost->apad);
1347 ost->avfilter = get_ost_filters(o, oc, ost);
1351 /* check for channel mapping for this audio stream */
1352 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1353 AudioChannelMap *map = &o->audio_channel_maps[n];
1354 InputStream *ist = input_streams[ost->source_index];
1355 if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
1356 (map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1357 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1358 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1359 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1361 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1362 ost->file_index, ost->st->index);
1370 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1374 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1375 if (!ost->stream_copy) {
1376 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1383 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1385 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1386 ost->stream_copy = 1;
1391 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1395 AVCodecContext *subtitle_enc;
1397 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1399 subtitle_enc = st->codec;
1401 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1403 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1405 if (!ost->stream_copy) {
1406 char *frame_size = NULL;
1408 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1409 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1410 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1418 /* arg format is "output-stream-index:streamid-value". */
1419 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1421 OptionsContext *o = optctx;
1426 av_strlcpy(idx_str, arg, sizeof(idx_str));
1427 p = strchr(idx_str, ':');
1429 av_log(NULL, AV_LOG_FATAL,
1430 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1435 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1436 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1437 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1441 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1443 AVFormatContext *is = ifile->ctx;
1444 AVFormatContext *os = ofile->ctx;
1448 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1450 return AVERROR(ENOMEM);
1453 for (i = 0; i < is->nb_chapters; i++) {
1454 AVChapter *in_ch = is->chapters[i], *out_ch;
1455 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1456 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1457 AV_TIME_BASE_Q, in_ch->time_base);
1458 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1459 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1462 if (in_ch->end < ts_off)
1464 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1467 out_ch = av_mallocz(sizeof(AVChapter));
1469 return AVERROR(ENOMEM);
1471 out_ch->id = in_ch->id;
1472 out_ch->time_base = in_ch->time_base;
1473 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1474 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1477 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1479 os->chapters[os->nb_chapters++] = out_ch;
1484 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1487 AVFormatContext *ic = avformat_alloc_context();
1489 ic->interrupt_callback = int_cb;
1490 err = avformat_open_input(&ic, filename, NULL, NULL);
1493 /* copy stream format */
1494 for(i=0;i<ic->nb_streams;i++) {
1498 AVCodecContext *avctx;
1500 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1501 ost = new_output_stream(o, s, codec->type, -1);
1506 // FIXME: a more elegant solution is needed
1507 memcpy(st, ic->streams[i], sizeof(AVStream));
1509 st->info = av_malloc(sizeof(*st->info));
1510 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1512 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1514 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1515 choose_sample_fmt(st, codec);
1516 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1517 choose_pixel_fmt(st, codec, st->codec->pix_fmt);
1520 avformat_close_input(&ic);
1524 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1525 AVFormatContext *oc)
1529 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1530 ofilter->out_tmp->pad_idx)) {
1531 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1532 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1534 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1539 ost->source_index = -1;
1540 ost->filter = ofilter;
1544 if (ost->stream_copy) {
1545 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1546 "which is fed from a complex filtergraph. Filtering and streamcopy "
1547 "cannot be used together.\n", ost->file_index, ost->index);
1551 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1552 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1555 avfilter_inout_free(&ofilter->out_tmp);
1558 static int configure_complex_filters(void)
1562 for (i = 0; i < nb_filtergraphs; i++)
1563 if (!filtergraphs[i]->graph &&
1564 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1569 static int open_output_file(OptionsContext *o, const char *filename)
1571 AVFormatContext *oc;
1573 AVOutputFormat *file_oformat;
1577 AVDictionary *unused_opts = NULL;
1578 AVDictionaryEntry *e = NULL;
1580 if (configure_complex_filters() < 0) {
1581 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1585 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1586 o->stop_time = INT64_MAX;
1587 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1590 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1591 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1592 if (o->stop_time <= start_time) {
1593 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1594 o->stop_time = INT64_MAX;
1596 o->recording_time = o->stop_time - start_time;
1600 GROW_ARRAY(output_files, nb_output_files);
1601 of = av_mallocz(sizeof(*of));
1604 output_files[nb_output_files - 1] = of;
1606 of->ost_index = nb_output_streams;
1607 of->recording_time = o->recording_time;
1608 of->start_time = o->start_time;
1609 of->limit_filesize = o->limit_filesize;
1610 of->shortest = o->shortest;
1611 av_dict_copy(&of->opts, o->g->format_opts, 0);
1613 if (!strcmp(filename, "-"))
1616 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1618 print_error(filename, err);
1623 if (o->recording_time != INT64_MAX)
1624 oc->duration = o->recording_time;
1626 file_oformat= oc->oformat;
1627 oc->interrupt_callback = int_cb;
1629 /* create streams for all unlabeled output pads */
1630 for (i = 0; i < nb_filtergraphs; i++) {
1631 FilterGraph *fg = filtergraphs[i];
1632 for (j = 0; j < fg->nb_outputs; j++) {
1633 OutputFilter *ofilter = fg->outputs[j];
1635 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1638 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1639 ofilter->out_tmp->pad_idx)) {
1640 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1641 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1642 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1644 init_output_filter(ofilter, o, oc);
1648 /* ffserver seeking with date=... needs a date reference */
1649 if (!strcmp(file_oformat->name, "ffm") &&
1650 av_strstart(filename, "http:", NULL)) {
1651 int err = parse_option(o, "metadata", "creation_time=now", options);
1653 print_error(filename, err);
1658 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1659 av_strstart(filename, "http:", NULL)) {
1661 /* special case for files sent to ffserver: we get the stream
1662 parameters from ffserver */
1663 int err = read_ffserver_streams(o, oc, filename);
1665 print_error(filename, err);
1668 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1669 ost = output_streams[j];
1670 for (i = 0; i < nb_input_streams; i++) {
1671 ist = input_streams[i];
1672 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1674 ost->source_index= i;
1675 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1676 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1678 ist->st->discard = AVDISCARD_NONE;
1683 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));
1687 } else if (!o->nb_stream_maps) {
1688 char *subtitle_codec_name = NULL;
1689 /* pick the "best" stream of each type */
1691 /* video: highest resolution */
1692 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1693 int area = 0, idx = -1;
1694 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1695 for (i = 0; i < nb_input_streams; i++) {
1697 ist = input_streams[i];
1698 new_area = ist->st->codec->width * ist->st->codec->height;
1699 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1701 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1703 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1710 new_video_stream(o, oc, idx);
1713 /* audio: most channels */
1714 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1715 int channels = 0, idx = -1;
1716 for (i = 0; i < nb_input_streams; i++) {
1717 ist = input_streams[i];
1718 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1719 ist->st->codec->channels > channels) {
1720 channels = ist->st->codec->channels;
1725 new_audio_stream(o, oc, idx);
1728 /* subtitles: pick first */
1729 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1730 if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
1731 for (i = 0; i < nb_input_streams; i++)
1732 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1733 new_subtitle_stream(o, oc, i);
1737 /* do something with data? */
1739 for (i = 0; i < o->nb_stream_maps; i++) {
1740 StreamMap *map = &o->stream_maps[i];
1745 if (map->linklabel) {
1747 OutputFilter *ofilter = NULL;
1750 for (j = 0; j < nb_filtergraphs; j++) {
1751 fg = filtergraphs[j];
1752 for (k = 0; k < fg->nb_outputs; k++) {
1753 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1754 if (out && !strcmp(out->name, map->linklabel)) {
1755 ofilter = fg->outputs[k];
1762 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1763 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1766 init_output_filter(ofilter, o, oc);
1768 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1770 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1771 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1773 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1775 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1777 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1780 switch (ist->st->codec->codec_type) {
1781 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1782 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1783 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1784 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1785 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1787 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1788 map->file_index, map->stream_index);
1795 /* handle attached files */
1796 for (i = 0; i < o->nb_attachments; i++) {
1798 uint8_t *attachment;
1802 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1803 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1807 if ((len = avio_size(pb)) <= 0) {
1808 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1812 if (!(attachment = av_malloc(len))) {
1813 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1817 avio_read(pb, attachment, len);
1819 ost = new_attachment_stream(o, oc, -1);
1820 ost->stream_copy = 0;
1821 ost->attachment_filename = o->attachments[i];
1823 ost->st->codec->extradata = attachment;
1824 ost->st->codec->extradata_size = len;
1826 p = strrchr(o->attachments[i], '/');
1827 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1831 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1832 AVDictionaryEntry *e;
1833 ost = output_streams[i];
1835 if ((ost->stream_copy || ost->attachment_filename)
1836 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1837 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1838 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1842 /* check if all codec options have been used */
1843 unused_opts = strip_specifiers(o->g->codec_opts);
1844 for (i = of->ost_index; i < nb_output_streams; i++) {
1846 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1847 AV_DICT_IGNORE_SUFFIX)))
1848 av_dict_set(&unused_opts, e->key, NULL, 0);
1852 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1853 const AVClass *class = avcodec_get_class();
1854 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1855 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1858 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1859 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1860 "output file #%d (%s) is not an encoding option.\n", e->key,
1861 option->help ? option->help : "", nb_output_files - 1,
1866 // gop_timecode is injected by generic code but not always used
1867 if (!strcmp(e->key, "gop_timecode"))
1870 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1871 "output file #%d (%s) has not been used for any stream. The most "
1872 "likely reason is either wrong type (e.g. a video option with "
1873 "no video streams) or that it is a private option of some encoder "
1874 "which was not actually used for any stream.\n", e->key,
1875 option->help ? option->help : "", nb_output_files - 1, filename);
1877 av_dict_free(&unused_opts);
1879 /* check filename in case of an image number is expected */
1880 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1881 if (!av_filename_number_test(oc->filename)) {
1882 print_error(oc->filename, AVERROR(EINVAL));
1887 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1888 /* test if it already exists to avoid losing precious files */
1889 assert_file_overwrite(filename);
1892 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1893 &oc->interrupt_callback,
1895 print_error(filename, err);
1898 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
1899 assert_file_overwrite(filename);
1901 if (o->mux_preload) {
1903 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1904 av_dict_set(&of->opts, "preload", buf, 0);
1906 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1909 for (i = 0; i < o->nb_metadata_map; i++) {
1911 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1913 if (in_file_index >= nb_input_files) {
1914 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1917 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1918 in_file_index >= 0 ?
1919 input_files[in_file_index]->ctx : NULL, o);
1923 if (o->chapters_input_file >= nb_input_files) {
1924 if (o->chapters_input_file == INT_MAX) {
1925 /* copy chapters from the first input file that has them*/
1926 o->chapters_input_file = -1;
1927 for (i = 0; i < nb_input_files; i++)
1928 if (input_files[i]->ctx->nb_chapters) {
1929 o->chapters_input_file = i;
1933 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1934 o->chapters_input_file);
1938 if (o->chapters_input_file >= 0)
1939 copy_chapters(input_files[o->chapters_input_file], of,
1940 !o->metadata_chapters_manual);
1942 /* copy global metadata by default */
1943 if (!o->metadata_global_manual && nb_input_files){
1944 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1945 AV_DICT_DONT_OVERWRITE);
1946 if(o->recording_time != INT64_MAX)
1947 av_dict_set(&oc->metadata, "duration", NULL, 0);
1948 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
1950 if (!o->metadata_streams_manual)
1951 for (i = of->ost_index; i < nb_output_streams; i++) {
1953 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1955 ist = input_streams[output_streams[i]->source_index];
1956 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1959 /* process manually set metadata */
1960 for (i = 0; i < o->nb_metadata; i++) {
1963 const char *stream_spec;
1964 int index = 0, j, ret = 0;
1966 val = strchr(o->metadata[i].u.str, '=');
1968 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1969 o->metadata[i].u.str);
1974 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1976 for (j = 0; j < oc->nb_streams; j++) {
1977 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1978 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1989 if (index < 0 || index >= oc->nb_chapters) {
1990 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1993 m = &oc->chapters[index]->metadata;
1996 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
1999 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2006 static int opt_target(void *optctx, const char *opt, const char *arg)
2008 OptionsContext *o = optctx;
2009 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2010 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2012 if (!strncmp(arg, "pal-", 4)) {
2015 } else if (!strncmp(arg, "ntsc-", 5)) {
2018 } else if (!strncmp(arg, "film-", 5)) {
2022 /* Try to determine PAL/NTSC by peeking in the input files */
2023 if (nb_input_files) {
2025 for (j = 0; j < nb_input_files; j++) {
2026 for (i = 0; i < input_files[j]->nb_streams; i++) {
2027 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2028 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2030 fr = c->time_base.den * 1000 / c->time_base.num;
2034 } else if ((fr == 29970) || (fr == 23976)) {
2039 if (norm != UNKNOWN)
2043 if (norm != UNKNOWN)
2044 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2047 if (norm == UNKNOWN) {
2048 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2049 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2050 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2054 if (!strcmp(arg, "vcd")) {
2055 opt_video_codec(o, "c:v", "mpeg1video");
2056 opt_audio_codec(o, "c:a", "mp2");
2057 parse_option(o, "f", "vcd", options);
2058 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2060 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2061 parse_option(o, "r", frame_rates[norm], options);
2062 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2064 av_dict_set(&o->g->codec_opts, "b:v", "1150000", 0);
2065 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", 0);
2066 av_dict_set(&o->g->codec_opts, "minrate", "1150000", 0);
2067 av_dict_set(&o->g->codec_opts, "bufsize", "327680", 0); // 40*1024*8;
2069 av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
2070 parse_option(o, "ar", "44100", options);
2071 parse_option(o, "ac", "2", options);
2073 av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
2074 av_dict_set(&o->g->format_opts, "muxrate", "1411200", 0); // 2352 * 75 * 8;
2076 /* We have to offset the PTS, so that it is consistent with the SCR.
2077 SCR starts at 36000, but the first two packs contain only padding
2078 and the first pack from the other stream, respectively, may also have
2079 been written before.
2080 So the real data starts at SCR 36000+3*1200. */
2081 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2082 } else if (!strcmp(arg, "svcd")) {
2084 opt_video_codec(o, "c:v", "mpeg2video");
2085 opt_audio_codec(o, "c:a", "mp2");
2086 parse_option(o, "f", "svcd", options);
2088 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2089 parse_option(o, "r", frame_rates[norm], options);
2090 parse_option(o, "pix_fmt", "yuv420p", options);
2091 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2093 av_dict_set(&o->g->codec_opts, "b:v", "2040000", 0);
2094 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", 0);
2095 av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1145000;
2096 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
2097 av_dict_set(&o->g->codec_opts, "scan_offset", "1", 0);
2099 av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
2100 parse_option(o, "ar", "44100", options);
2102 av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
2104 } else if (!strcmp(arg, "dvd")) {
2106 opt_video_codec(o, "c:v", "mpeg2video");
2107 opt_audio_codec(o, "c:a", "ac3");
2108 parse_option(o, "f", "dvd", options);
2110 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2111 parse_option(o, "r", frame_rates[norm], options);
2112 parse_option(o, "pix_fmt", "yuv420p", options);
2113 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2115 av_dict_set(&o->g->codec_opts, "b:v", "6000000", 0);
2116 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", 0);
2117 av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1500000;
2118 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
2120 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.
2121 av_dict_set(&o->g->format_opts, "muxrate", "10080000", 0); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2123 av_dict_set(&o->g->codec_opts, "b:a", "448000", 0);
2124 parse_option(o, "ar", "48000", options);
2126 } else if (!strncmp(arg, "dv", 2)) {
2128 parse_option(o, "f", "dv", options);
2130 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2131 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2132 norm == PAL ? "yuv420p" : "yuv411p", options);
2133 parse_option(o, "r", frame_rates[norm], options);
2135 parse_option(o, "ar", "48000", options);
2136 parse_option(o, "ac", "2", options);
2139 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2140 return AVERROR(EINVAL);
2145 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2147 av_free (vstats_filename);
2148 vstats_filename = av_strdup (arg);
2152 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2155 time_t today2 = time(NULL);
2156 struct tm *today = localtime(&today2);
2158 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2160 return opt_vstats_file(NULL, opt, filename);
2163 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2165 OptionsContext *o = optctx;
2166 return parse_option(o, "frames:v", arg, options);
2169 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2171 OptionsContext *o = optctx;
2172 return parse_option(o, "frames:a", arg, options);
2175 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2177 OptionsContext *o = optctx;
2178 return parse_option(o, "frames:d", arg, options);
2181 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2184 AVDictionary *cbak = codec_opts;
2185 AVDictionary *fbak = format_opts;
2189 ret = opt_default(NULL, opt, arg);
2191 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2192 av_dict_copy(&o->g->format_opts, format_opts, 0);
2193 av_dict_free(&codec_opts);
2194 av_dict_free(&format_opts);
2201 static int opt_preset(void *optctx, const char *opt, const char *arg)
2203 OptionsContext *o = optctx;
2205 char filename[1000], line[1000], tmp_line[1000];
2206 const char *codec_name = NULL;
2210 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2212 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2213 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2214 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2216 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2220 while (fgets(line, sizeof(line), f)) {
2221 char *key = tmp_line, *value, *endptr;
2223 if (strcspn(line, "#\n\r") == 0)
2225 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2226 if (!av_strtok(key, "=", &value) ||
2227 !av_strtok(value, "\r\n", &endptr)) {
2228 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2231 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2233 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2234 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2235 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2236 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2237 else if (opt_default_new(o, key, value) < 0) {
2238 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2239 filename, line, key, value);
2249 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2251 OptionsContext *o = optctx;
2252 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2253 int ret = parse_option(o, s, arg, options);
2258 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2260 OptionsContext *o = optctx;
2261 if(!strcmp(opt, "b")){
2262 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2263 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2266 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2270 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2272 OptionsContext *o = optctx;
2275 if(!strcmp(opt, "qscale")){
2276 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2277 return parse_option(o, "q:v", arg, options);
2279 s = av_asprintf("q%s", opt + 6);
2280 ret = parse_option(o, s, arg, options);
2285 static int opt_profile(void *optctx, const char *opt, const char *arg)
2287 OptionsContext *o = optctx;
2288 if(!strcmp(opt, "profile")){
2289 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2290 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2293 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2297 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2299 OptionsContext *o = optctx;
2300 return parse_option(o, "filter:v", arg, options);
2303 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2305 OptionsContext *o = optctx;
2306 return parse_option(o, "filter:a", arg, options);
2309 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2311 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2312 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2313 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2314 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2316 if (video_sync_method == VSYNC_AUTO)
2317 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2321 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2323 OptionsContext *o = optctx;
2324 char *tcr = av_asprintf("timecode=%s", arg);
2325 int ret = parse_option(o, "metadata:g", tcr, options);
2327 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2332 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2334 OptionsContext *o = optctx;
2335 char layout_str[32];
2338 int ret, channels, ac_str_size;
2341 layout = av_get_channel_layout(arg);
2343 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2344 return AVERROR(EINVAL);
2346 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2347 ret = opt_default_new(o, opt, layout_str);
2351 /* set 'ac' option based on channel layout */
2352 channels = av_get_channel_layout_nb_channels(layout);
2353 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2354 stream_str = strchr(opt, ':');
2355 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2356 ac_str = av_mallocz(ac_str_size);
2358 return AVERROR(ENOMEM);
2359 av_strlcpy(ac_str, "ac", 3);
2361 av_strlcat(ac_str, stream_str, ac_str_size);
2362 ret = parse_option(o, ac_str, layout_str, options);
2368 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2370 OptionsContext *o = optctx;
2371 return parse_option(o, "q:a", arg, options);
2374 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2376 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2377 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2378 return AVERROR(ENOMEM);
2379 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2380 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2381 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2382 return AVERROR(ENOMEM);
2386 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2388 uint8_t *graph_desc = read_file(arg);
2390 return AVERROR(EINVAL);
2392 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2393 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2394 return AVERROR(ENOMEM);
2395 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2396 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2400 void show_help_default(const char *opt, const char *arg)
2402 /* per-file options have at least one of those set */
2403 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2404 int show_advanced = 0, show_avoptions = 0;
2407 if (!strcmp(opt, "long"))
2409 else if (!strcmp(opt, "full"))
2410 show_advanced = show_avoptions = 1;
2412 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2417 printf("Getting help:\n"
2418 " -h -- print basic options\n"
2419 " -h long -- print more options\n"
2420 " -h full -- print all options (including all format and codec specific options, very long)\n"
2421 " See man %s for detailed description of the options.\n"
2422 "\n", program_name);
2424 show_help_options(options, "Print help / information / capabilities:",
2427 show_help_options(options, "Global options (affect whole program "
2428 "instead of just one file:",
2429 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2431 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2432 per_file | OPT_EXIT, 0);
2434 show_help_options(options, "Per-file main options:", 0,
2435 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2436 OPT_EXIT, per_file);
2438 show_help_options(options, "Advanced per-file options:",
2439 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2441 show_help_options(options, "Video options:",
2442 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2444 show_help_options(options, "Advanced Video options:",
2445 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2447 show_help_options(options, "Audio options:",
2448 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2450 show_help_options(options, "Advanced Audio options:",
2451 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2452 show_help_options(options, "Subtitle options:",
2453 OPT_SUBTITLE, 0, 0);
2456 if (show_avoptions) {
2457 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2458 show_help_children(avcodec_get_class(), flags);
2459 show_help_children(avformat_get_class(), flags);
2461 show_help_children(sws_get_class(), flags);
2463 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2464 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2468 void show_usage(void)
2470 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2471 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2472 av_log(NULL, AV_LOG_INFO, "\n");
2480 static const OptionGroupDef groups[] = {
2481 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2482 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2485 static int open_files(OptionGroupList *l, const char *inout,
2486 int (*open_file)(OptionsContext*, const char*))
2490 for (i = 0; i < l->nb_groups; i++) {
2491 OptionGroup *g = &l->groups[i];
2497 ret = parse_optgroup(&o, g);
2499 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2500 "%s.\n", inout, g->arg);
2504 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2505 ret = open_file(&o, g->arg);
2508 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2512 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2518 int ffmpeg_parse_options(int argc, char **argv)
2520 OptionParseContext octx;
2524 memset(&octx, 0, sizeof(octx));
2526 /* split the commandline into an internal representation */
2527 ret = split_commandline(&octx, argc, argv, options, groups,
2528 FF_ARRAY_ELEMS(groups));
2530 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2534 /* apply global options */
2535 ret = parse_optgroup(NULL, &octx.global_opts);
2537 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2541 /* open input files */
2542 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2544 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2548 /* open output files */
2549 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2551 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2556 uninit_parse_context(&octx);
2558 av_strerror(ret, error, sizeof(error));
2559 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2564 static int opt_progress(void *optctx, const char *opt, const char *arg)
2566 AVIOContext *avio = NULL;
2569 if (!strcmp(arg, "-"))
2571 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2573 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2574 arg, av_err2str(ret));
2577 progress_avio = avio;
2581 #define OFFSET(x) offsetof(OptionsContext, x)
2582 const OptionDef options[] = {
2584 #include "cmdutils_common_opts.h"
2585 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2586 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2587 "force format", "fmt" },
2588 { "y", OPT_BOOL, { &file_overwrite },
2589 "overwrite output files" },
2590 { "n", OPT_BOOL, { &no_file_overwrite },
2591 "never overwrite output files" },
2592 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2593 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2594 "codec name", "codec" },
2595 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2596 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2597 "codec name", "codec" },
2598 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2599 OPT_OUTPUT, { .off = OFFSET(presets) },
2600 "preset name", "preset" },
2601 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2602 OPT_OUTPUT, { .func_arg = opt_map },
2603 "set input stream mapping",
2604 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2605 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2606 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2607 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2608 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2609 "set metadata information of outfile from infile",
2610 "outfile[,metadata]:infile[,metadata]" },
2611 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2612 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2613 "set chapters mapping", "input_file_index" },
2614 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2615 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2616 "record or transcode \"duration\" seconds of audio/video",
2618 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2619 "record or transcode stop time", "time_stop" },
2620 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2621 "set the limit file size in bytes", "limit_size" },
2622 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2623 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2624 "set the start time offset", "time_off" },
2625 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2626 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2627 "enable/disable accurate seeking with -ss" },
2628 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2629 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2630 "set the input ts offset", "time_off" },
2631 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2632 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2633 "set the input ts scale", "scale" },
2634 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2635 "set the recording timestamp ('now' to set the current time)", "time" },
2636 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2637 "add metadata", "string=string" },
2638 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2639 OPT_OUTPUT, { .func_arg = opt_data_frames },
2640 "set the number of data frames to record", "number" },
2641 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2642 "add timings for benchmarking" },
2643 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2644 "add timings for each task" },
2645 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2646 "write program-readable progress information", "url" },
2647 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2648 "enable or disable interaction on standard input" },
2649 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2650 "set max runtime in seconds", "limit" },
2651 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2652 "dump each input packet" },
2653 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2654 "when dumping packets, also dump the payload" },
2655 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2656 OPT_INPUT, { .off = OFFSET(rate_emu) },
2657 "read input at native frame rate", "" },
2658 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2659 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2660 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2661 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2662 "video sync method", "" },
2663 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2664 "audio sync method", "" },
2665 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2666 "audio drift threshold", "threshold" },
2667 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2668 "copy timestamps" },
2669 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2670 "copy input stream time base when stream copying", "mode" },
2671 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2672 OPT_OUTPUT, { .off = OFFSET(shortest) },
2673 "finish encoding within shortest input" },
2674 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2675 OPT_OUTPUT, { .off = OFFSET(apad) },
2677 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2678 "timestamp discontinuity delta threshold", "threshold" },
2679 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2680 "timestamp error delta threshold", "threshold" },
2681 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2682 "exit on error", "error" },
2683 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2684 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2685 "copy initial non-keyframes" },
2686 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2687 "copy or discard frames before start time" },
2688 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2689 "set the number of frames to record", "number" },
2690 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2691 OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(codec_tags) },
2692 "force codec tag/fourcc", "fourcc/tag" },
2693 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2694 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2695 "use fixed quality scale (VBR)", "q" },
2696 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2697 OPT_OUTPUT, { .func_arg = opt_qscale },
2698 "use fixed quality scale (VBR)", "q" },
2699 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2700 "set profile", "profile" },
2701 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2702 "set stream filtergraph", "filter_graph" },
2703 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2704 "read stream filtergraph description from a file", "filename" },
2705 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2706 "reinit filtergraph on input parameter changes", "" },
2707 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2708 "create a complex filtergraph", "graph_description" },
2709 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2710 "create a complex filtergraph", "graph_description" },
2711 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2712 "read complex filtergraph description from a file", "filename" },
2713 { "stats", OPT_BOOL, { &print_stats },
2714 "print progress report during encoding", },
2715 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2716 OPT_OUTPUT, { .func_arg = opt_attach },
2717 "add an attachment to the output file", "filename" },
2718 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2719 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2720 "extract an attachment into a file", "filename" },
2721 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2722 "print timestamp debugging info" },
2723 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2724 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2727 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2728 "set the number of video frames to record", "number" },
2729 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2730 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2731 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2732 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2733 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2734 "set frame size (WxH or abbreviation)", "size" },
2735 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2736 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2737 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2738 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2739 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2740 "set pixel format", "format" },
2741 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2742 "set the number of bits per raw sample", "number" },
2743 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2744 "deprecated use -g 1" },
2745 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2747 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2748 "discard threshold", "n" },
2749 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2750 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2751 "rate control override for specific intervals", "override" },
2752 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2753 OPT_OUTPUT, { .func_arg = opt_video_codec },
2754 "force video codec ('copy' to copy stream)", "codec" },
2755 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2757 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2759 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2760 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2761 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2762 "select the pass number (1 to 3)", "n" },
2763 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2764 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2765 "select two pass log file name prefix", "prefix" },
2766 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2767 "this option is deprecated, use the yadif filter instead" },
2768 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2769 "calculate PSNR of compressed frames" },
2770 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2771 "dump video coding statistics to file" },
2772 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2773 "dump video coding statistics to file", "file" },
2774 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2775 "set video filters", "filter_graph" },
2776 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2777 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2778 "specify intra matrix coeffs", "matrix" },
2779 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2780 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2781 "specify inter matrix coeffs", "matrix" },
2782 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2783 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2784 "top=1/bottom=0/auto=-1 field first", "" },
2785 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2786 "intra_dc_precision", "precision" },
2787 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2788 OPT_OUTPUT, { .func_arg = opt_old2new },
2789 "force video tag/fourcc", "fourcc/tag" },
2790 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2791 "show QP histogram" },
2792 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2793 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2794 "force the selected framerate, disable the best supported framerate selection" },
2795 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2796 OPT_OUTPUT, { .func_arg = opt_streamid },
2797 "set the value of an outfile streamid", "streamIndex:value" },
2798 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2799 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2800 "force key frames at specified timestamps", "timestamps" },
2801 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2802 "video bitrate (please use -b:v)", "bitrate" },
2805 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2806 "set the number of audio frames to record", "number" },
2807 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2808 "set audio quality (codec-specific)", "quality", },
2809 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2810 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2811 "set audio sampling rate (in Hz)", "rate" },
2812 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2813 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2814 "set number of audio channels", "channels" },
2815 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2817 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2818 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2819 "force audio codec ('copy' to copy stream)", "codec" },
2820 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2821 OPT_OUTPUT, { .func_arg = opt_old2new },
2822 "force audio tag/fourcc", "fourcc/tag" },
2823 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2824 "change audio volume (256=normal)" , "volume" },
2825 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2826 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2827 "set sample format", "format" },
2828 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2829 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2830 "set channel layout", "layout" },
2831 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2832 "set audio filters", "filter_graph" },
2833 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2834 "set the maximum number of channels to try to guess the channel layout" },
2836 /* subtitle options */
2837 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2838 "disable subtitle" },
2839 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2840 "force subtitle codec ('copy' to copy stream)", "codec" },
2841 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2842 , "force subtitle tag/fourcc", "fourcc/tag" },
2843 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2844 "fix subtitles duration" },
2845 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2846 "set canvas size (WxH or abbreviation)", "size" },
2849 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2850 "deprecated, use -channel", "channel" },
2851 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2852 "deprecated, use -standard", "standard" },
2853 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2856 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2857 "set the maximum demux-decode delay", "seconds" },
2858 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2859 "set the initial demux-decode delay", "seconds" },
2860 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
2861 "override the options from ffserver", "" },
2863 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2864 "A comma-separated list of bitstream filters", "bitstream_filters" },
2865 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2866 "deprecated", "audio bitstream_filters" },
2867 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2868 "deprecated", "video bitstream_filters" },
2870 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2871 "set the audio options to the indicated preset", "preset" },
2872 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2873 "set the video options to the indicated preset", "preset" },
2874 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2875 "set the subtitle options to the indicated preset", "preset" },
2876 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2877 "set options from indicated preset file", "filename" },
2878 /* data codec support */
2879 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2880 "force data codec ('copy' to copy stream)", "codec" },
2881 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },