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 void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1175 const OutputStream *ost, enum AVMediaType type)
1177 char *filter_script = NULL, *filter = NULL;
1178 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, ost->st);
1179 MATCH_PER_STREAM_OPT(filters, str, filter, oc, ost->st);
1180 if (filter_script || filter) {
1181 av_log(NULL, AV_LOG_ERROR,
1182 "Filtergraph '%s' or filter_script '%s' was defined for %s output stream "
1183 "%d:%d but codec copy was selected.\n"
1184 "Filtering and streamcopy cannot be used together.\n",
1185 (char *)av_x_if_null(filter, "(none)"),
1186 (char *)av_x_if_null(filter_script, "(none)"),
1187 av_get_media_type_string(type),
1188 ost->file_index, ost->index);
1193 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1197 AVCodecContext *video_enc;
1198 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1200 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1202 video_enc = st->codec;
1204 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1205 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1206 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1210 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1211 if (frame_aspect_ratio) {
1213 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1214 q.num <= 0 || q.den <= 0) {
1215 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1218 ost->frame_aspect_ratio = q;
1221 if (!ost->stream_copy) {
1222 const char *p = NULL;
1223 char *frame_size = NULL;
1224 char *frame_pix_fmt = NULL;
1225 char *intra_matrix = NULL, *inter_matrix = NULL;
1229 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1230 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1231 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1235 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1236 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1237 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1238 ost->keep_pix_fmt = 1;
1239 if (!*++frame_pix_fmt)
1240 frame_pix_fmt = NULL;
1242 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1243 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1246 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1249 video_enc->gop_size = 0;
1250 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1252 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1253 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1256 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1258 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1260 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1261 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1264 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1267 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1268 for (i = 0; p; i++) {
1270 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1272 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1275 /* FIXME realloc failure */
1276 video_enc->rc_override =
1277 av_realloc(video_enc->rc_override,
1278 sizeof(RcOverride) * (i + 1));
1279 video_enc->rc_override[i].start_frame = start;
1280 video_enc->rc_override[i].end_frame = end;
1282 video_enc->rc_override[i].qscale = q;
1283 video_enc->rc_override[i].quality_factor = 1.0;
1286 video_enc->rc_override[i].qscale = 0;
1287 video_enc->rc_override[i].quality_factor = -q/100.0;
1292 video_enc->rc_override_count = i;
1293 video_enc->intra_dc_precision = intra_dc_precision - 8;
1296 video_enc->flags|= CODEC_FLAG_PSNR;
1299 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1302 video_enc->flags |= CODEC_FLAG_PASS1;
1303 av_dict_set(&ost->opts, "flags", "+pass1", AV_DICT_APPEND);
1306 video_enc->flags |= CODEC_FLAG_PASS2;
1307 av_dict_set(&ost->opts, "flags", "+pass2", AV_DICT_APPEND);
1311 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1312 if (ost->logfile_prefix &&
1313 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1316 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1317 if (ost->forced_keyframes)
1318 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1320 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1322 ost->top_field_first = -1;
1323 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1326 ost->avfilter = get_ost_filters(o, oc, ost);
1330 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1333 if (ost->stream_copy)
1334 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1339 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1344 AVCodecContext *audio_enc;
1346 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1349 audio_enc = st->codec;
1350 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1352 if (!ost->stream_copy) {
1353 char *sample_fmt = NULL;
1355 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1357 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1359 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1360 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1364 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1366 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1367 ost->apad = av_strdup(ost->apad);
1369 ost->avfilter = get_ost_filters(o, oc, ost);
1373 /* check for channel mapping for this audio stream */
1374 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1375 AudioChannelMap *map = &o->audio_channel_maps[n];
1376 InputStream *ist = input_streams[ost->source_index];
1377 if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
1378 (map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1379 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1380 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1381 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1383 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1384 ost->file_index, ost->st->index);
1389 if (ost->stream_copy)
1390 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1395 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1399 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1400 if (!ost->stream_copy) {
1401 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1408 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1410 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1411 ost->stream_copy = 1;
1416 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1420 AVCodecContext *subtitle_enc;
1422 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1424 subtitle_enc = st->codec;
1426 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1428 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1430 if (!ost->stream_copy) {
1431 char *frame_size = NULL;
1433 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1434 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1435 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1443 /* arg format is "output-stream-index:streamid-value". */
1444 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1446 OptionsContext *o = optctx;
1451 av_strlcpy(idx_str, arg, sizeof(idx_str));
1452 p = strchr(idx_str, ':');
1454 av_log(NULL, AV_LOG_FATAL,
1455 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1460 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1461 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1462 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1466 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1468 AVFormatContext *is = ifile->ctx;
1469 AVFormatContext *os = ofile->ctx;
1473 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1475 return AVERROR(ENOMEM);
1478 for (i = 0; i < is->nb_chapters; i++) {
1479 AVChapter *in_ch = is->chapters[i], *out_ch;
1480 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1481 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1482 AV_TIME_BASE_Q, in_ch->time_base);
1483 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1484 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1487 if (in_ch->end < ts_off)
1489 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1492 out_ch = av_mallocz(sizeof(AVChapter));
1494 return AVERROR(ENOMEM);
1496 out_ch->id = in_ch->id;
1497 out_ch->time_base = in_ch->time_base;
1498 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1499 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1502 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1504 os->chapters[os->nb_chapters++] = out_ch;
1509 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1512 AVFormatContext *ic = avformat_alloc_context();
1514 ic->interrupt_callback = int_cb;
1515 err = avformat_open_input(&ic, filename, NULL, NULL);
1518 /* copy stream format */
1519 for(i=0;i<ic->nb_streams;i++) {
1523 AVCodecContext *avctx;
1525 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1526 ost = new_output_stream(o, s, codec->type, -1);
1531 // FIXME: a more elegant solution is needed
1532 memcpy(st, ic->streams[i], sizeof(AVStream));
1534 st->info = av_malloc(sizeof(*st->info));
1535 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1537 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1539 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1540 choose_sample_fmt(st, codec);
1541 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1542 choose_pixel_fmt(st, codec, st->codec->pix_fmt);
1545 avformat_close_input(&ic);
1549 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1550 AVFormatContext *oc)
1554 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1555 ofilter->out_tmp->pad_idx)) {
1556 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1557 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1559 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1564 ost->source_index = -1;
1565 ost->filter = ofilter;
1569 if (ost->stream_copy) {
1570 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1571 "which is fed from a complex filtergraph. Filtering and streamcopy "
1572 "cannot be used together.\n", ost->file_index, ost->index);
1576 if (ost->avfilter) {
1577 char *filter_script = NULL, *filter = NULL;
1578 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, ost->st);
1579 MATCH_PER_STREAM_OPT(filters, str, filter, oc, ost->st);
1581 if (filter || filter_script) {
1582 av_log(NULL, AV_LOG_ERROR,
1583 "Filter graph '%s' or filter script '%s' was specified through the -filter/-filter_script/-vf/-af option "
1584 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1585 "-filter/-filter_script and -filter_complex cannot be used together for the same stream.\n",
1586 (char *)av_x_if_null(filter, "(none)"),
1587 (char *)av_x_if_null(filter_script, "(none)"),
1588 ost->file_index, ost->index);
1593 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1594 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1597 avfilter_inout_free(&ofilter->out_tmp);
1600 static int configure_complex_filters(void)
1604 for (i = 0; i < nb_filtergraphs; i++)
1605 if (!filtergraphs[i]->graph &&
1606 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1611 static int open_output_file(OptionsContext *o, const char *filename)
1613 AVFormatContext *oc;
1615 AVOutputFormat *file_oformat;
1619 AVDictionary *unused_opts = NULL;
1620 AVDictionaryEntry *e = NULL;
1622 if (configure_complex_filters() < 0) {
1623 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1627 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1628 o->stop_time = INT64_MAX;
1629 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1632 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1633 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1634 if (o->stop_time <= start_time) {
1635 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1636 o->stop_time = INT64_MAX;
1638 o->recording_time = o->stop_time - start_time;
1642 GROW_ARRAY(output_files, nb_output_files);
1643 of = av_mallocz(sizeof(*of));
1646 output_files[nb_output_files - 1] = of;
1648 of->ost_index = nb_output_streams;
1649 of->recording_time = o->recording_time;
1650 of->start_time = o->start_time;
1651 of->limit_filesize = o->limit_filesize;
1652 of->shortest = o->shortest;
1653 av_dict_copy(&of->opts, o->g->format_opts, 0);
1655 if (!strcmp(filename, "-"))
1658 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1660 print_error(filename, err);
1665 if (o->recording_time != INT64_MAX)
1666 oc->duration = o->recording_time;
1668 file_oformat= oc->oformat;
1669 oc->interrupt_callback = int_cb;
1671 /* create streams for all unlabeled output pads */
1672 for (i = 0; i < nb_filtergraphs; i++) {
1673 FilterGraph *fg = filtergraphs[i];
1674 for (j = 0; j < fg->nb_outputs; j++) {
1675 OutputFilter *ofilter = fg->outputs[j];
1677 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1680 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1681 ofilter->out_tmp->pad_idx)) {
1682 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1683 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1684 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1686 init_output_filter(ofilter, o, oc);
1690 /* ffserver seeking with date=... needs a date reference */
1691 if (!strcmp(file_oformat->name, "ffm") &&
1692 av_strstart(filename, "http:", NULL)) {
1693 int err = parse_option(o, "metadata", "creation_time=now", options);
1695 print_error(filename, err);
1700 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1701 av_strstart(filename, "http:", NULL)) {
1703 /* special case for files sent to ffserver: we get the stream
1704 parameters from ffserver */
1705 int err = read_ffserver_streams(o, oc, filename);
1707 print_error(filename, err);
1710 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1711 ost = output_streams[j];
1712 for (i = 0; i < nb_input_streams; i++) {
1713 ist = input_streams[i];
1714 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1716 ost->source_index= i;
1717 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1718 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1720 ist->st->discard = AVDISCARD_NONE;
1725 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));
1729 } else if (!o->nb_stream_maps) {
1730 char *subtitle_codec_name = NULL;
1731 /* pick the "best" stream of each type */
1733 /* video: highest resolution */
1734 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1735 int area = 0, idx = -1;
1736 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1737 for (i = 0; i < nb_input_streams; i++) {
1739 ist = input_streams[i];
1740 new_area = ist->st->codec->width * ist->st->codec->height;
1741 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1743 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1745 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1752 new_video_stream(o, oc, idx);
1755 /* audio: most channels */
1756 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1757 int channels = 0, idx = -1;
1758 for (i = 0; i < nb_input_streams; i++) {
1759 ist = input_streams[i];
1760 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1761 ist->st->codec->channels > channels) {
1762 channels = ist->st->codec->channels;
1767 new_audio_stream(o, oc, idx);
1770 /* subtitles: pick first */
1771 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1772 if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
1773 for (i = 0; i < nb_input_streams; i++)
1774 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1775 new_subtitle_stream(o, oc, i);
1779 /* do something with data? */
1781 for (i = 0; i < o->nb_stream_maps; i++) {
1782 StreamMap *map = &o->stream_maps[i];
1787 if (map->linklabel) {
1789 OutputFilter *ofilter = NULL;
1792 for (j = 0; j < nb_filtergraphs; j++) {
1793 fg = filtergraphs[j];
1794 for (k = 0; k < fg->nb_outputs; k++) {
1795 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1796 if (out && !strcmp(out->name, map->linklabel)) {
1797 ofilter = fg->outputs[k];
1804 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1805 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1808 init_output_filter(ofilter, o, oc);
1810 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1812 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1813 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1815 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1817 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1819 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1822 switch (ist->st->codec->codec_type) {
1823 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1824 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1825 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1826 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1827 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1829 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1830 map->file_index, map->stream_index);
1837 /* handle attached files */
1838 for (i = 0; i < o->nb_attachments; i++) {
1840 uint8_t *attachment;
1844 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1845 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1849 if ((len = avio_size(pb)) <= 0) {
1850 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1854 if (!(attachment = av_malloc(len))) {
1855 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1859 avio_read(pb, attachment, len);
1861 ost = new_attachment_stream(o, oc, -1);
1862 ost->stream_copy = 0;
1863 ost->attachment_filename = o->attachments[i];
1865 ost->st->codec->extradata = attachment;
1866 ost->st->codec->extradata_size = len;
1868 p = strrchr(o->attachments[i], '/');
1869 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1873 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1874 AVDictionaryEntry *e;
1875 ost = output_streams[i];
1877 if ((ost->stream_copy || ost->attachment_filename)
1878 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1879 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1880 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1884 /* check if all codec options have been used */
1885 unused_opts = strip_specifiers(o->g->codec_opts);
1886 for (i = of->ost_index; i < nb_output_streams; i++) {
1888 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1889 AV_DICT_IGNORE_SUFFIX)))
1890 av_dict_set(&unused_opts, e->key, NULL, 0);
1894 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1895 const AVClass *class = avcodec_get_class();
1896 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1897 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1900 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1901 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1902 "output file #%d (%s) is not an encoding option.\n", e->key,
1903 option->help ? option->help : "", nb_output_files - 1,
1908 // gop_timecode is injected by generic code but not always used
1909 if (!strcmp(e->key, "gop_timecode"))
1912 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1913 "output file #%d (%s) has not been used for any stream. The most "
1914 "likely reason is either wrong type (e.g. a video option with "
1915 "no video streams) or that it is a private option of some encoder "
1916 "which was not actually used for any stream.\n", e->key,
1917 option->help ? option->help : "", nb_output_files - 1, filename);
1919 av_dict_free(&unused_opts);
1921 /* check filename in case of an image number is expected */
1922 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1923 if (!av_filename_number_test(oc->filename)) {
1924 print_error(oc->filename, AVERROR(EINVAL));
1929 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1930 /* test if it already exists to avoid losing precious files */
1931 assert_file_overwrite(filename);
1934 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1935 &oc->interrupt_callback,
1937 print_error(filename, err);
1940 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
1941 assert_file_overwrite(filename);
1943 if (o->mux_preload) {
1945 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1946 av_dict_set(&of->opts, "preload", buf, 0);
1948 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1951 for (i = 0; i < o->nb_metadata_map; i++) {
1953 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1955 if (in_file_index >= nb_input_files) {
1956 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1959 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1960 in_file_index >= 0 ?
1961 input_files[in_file_index]->ctx : NULL, o);
1965 if (o->chapters_input_file >= nb_input_files) {
1966 if (o->chapters_input_file == INT_MAX) {
1967 /* copy chapters from the first input file that has them*/
1968 o->chapters_input_file = -1;
1969 for (i = 0; i < nb_input_files; i++)
1970 if (input_files[i]->ctx->nb_chapters) {
1971 o->chapters_input_file = i;
1975 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1976 o->chapters_input_file);
1980 if (o->chapters_input_file >= 0)
1981 copy_chapters(input_files[o->chapters_input_file], of,
1982 !o->metadata_chapters_manual);
1984 /* copy global metadata by default */
1985 if (!o->metadata_global_manual && nb_input_files){
1986 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1987 AV_DICT_DONT_OVERWRITE);
1988 if(o->recording_time != INT64_MAX)
1989 av_dict_set(&oc->metadata, "duration", NULL, 0);
1990 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
1992 if (!o->metadata_streams_manual)
1993 for (i = of->ost_index; i < nb_output_streams; i++) {
1995 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1997 ist = input_streams[output_streams[i]->source_index];
1998 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2001 /* process manually set metadata */
2002 for (i = 0; i < o->nb_metadata; i++) {
2005 const char *stream_spec;
2006 int index = 0, j, ret = 0;
2008 val = strchr(o->metadata[i].u.str, '=');
2010 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2011 o->metadata[i].u.str);
2016 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2018 for (j = 0; j < oc->nb_streams; j++) {
2019 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2020 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2031 if (index < 0 || index >= oc->nb_chapters) {
2032 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2035 m = &oc->chapters[index]->metadata;
2038 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2041 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2048 static int opt_target(void *optctx, const char *opt, const char *arg)
2050 OptionsContext *o = optctx;
2051 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2052 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2054 if (!strncmp(arg, "pal-", 4)) {
2057 } else if (!strncmp(arg, "ntsc-", 5)) {
2060 } else if (!strncmp(arg, "film-", 5)) {
2064 /* Try to determine PAL/NTSC by peeking in the input files */
2065 if (nb_input_files) {
2067 for (j = 0; j < nb_input_files; j++) {
2068 for (i = 0; i < input_files[j]->nb_streams; i++) {
2069 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2070 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2072 fr = c->time_base.den * 1000 / c->time_base.num;
2076 } else if ((fr == 29970) || (fr == 23976)) {
2081 if (norm != UNKNOWN)
2085 if (norm != UNKNOWN)
2086 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2089 if (norm == UNKNOWN) {
2090 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2091 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2092 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2096 if (!strcmp(arg, "vcd")) {
2097 opt_video_codec(o, "c:v", "mpeg1video");
2098 opt_audio_codec(o, "c:a", "mp2");
2099 parse_option(o, "f", "vcd", options);
2100 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2102 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2103 parse_option(o, "r", frame_rates[norm], options);
2104 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2106 av_dict_set(&o->g->codec_opts, "b:v", "1150000", 0);
2107 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", 0);
2108 av_dict_set(&o->g->codec_opts, "minrate", "1150000", 0);
2109 av_dict_set(&o->g->codec_opts, "bufsize", "327680", 0); // 40*1024*8;
2111 av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
2112 parse_option(o, "ar", "44100", options);
2113 parse_option(o, "ac", "2", options);
2115 av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
2116 av_dict_set(&o->g->format_opts, "muxrate", "1411200", 0); // 2352 * 75 * 8;
2118 /* We have to offset the PTS, so that it is consistent with the SCR.
2119 SCR starts at 36000, but the first two packs contain only padding
2120 and the first pack from the other stream, respectively, may also have
2121 been written before.
2122 So the real data starts at SCR 36000+3*1200. */
2123 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2124 } else if (!strcmp(arg, "svcd")) {
2126 opt_video_codec(o, "c:v", "mpeg2video");
2127 opt_audio_codec(o, "c:a", "mp2");
2128 parse_option(o, "f", "svcd", options);
2130 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2131 parse_option(o, "r", frame_rates[norm], options);
2132 parse_option(o, "pix_fmt", "yuv420p", options);
2133 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2135 av_dict_set(&o->g->codec_opts, "b:v", "2040000", 0);
2136 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", 0);
2137 av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1145000;
2138 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
2139 av_dict_set(&o->g->codec_opts, "scan_offset", "1", 0);
2141 av_dict_set(&o->g->codec_opts, "b:a", "224000", 0);
2142 parse_option(o, "ar", "44100", options);
2144 av_dict_set(&o->g->format_opts, "packetsize", "2324", 0);
2146 } else if (!strcmp(arg, "dvd")) {
2148 opt_video_codec(o, "c:v", "mpeg2video");
2149 opt_audio_codec(o, "c:a", "ac3");
2150 parse_option(o, "f", "dvd", options);
2152 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2153 parse_option(o, "r", frame_rates[norm], options);
2154 parse_option(o, "pix_fmt", "yuv420p", options);
2155 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", 0);
2157 av_dict_set(&o->g->codec_opts, "b:v", "6000000", 0);
2158 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", 0);
2159 av_dict_set(&o->g->codec_opts, "minrate", "0", 0); // 1500000;
2160 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", 0); // 224*1024*8;
2162 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.
2163 av_dict_set(&o->g->format_opts, "muxrate", "10080000", 0); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2165 av_dict_set(&o->g->codec_opts, "b:a", "448000", 0);
2166 parse_option(o, "ar", "48000", options);
2168 } else if (!strncmp(arg, "dv", 2)) {
2170 parse_option(o, "f", "dv", options);
2172 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2173 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2174 norm == PAL ? "yuv420p" : "yuv411p", options);
2175 parse_option(o, "r", frame_rates[norm], options);
2177 parse_option(o, "ar", "48000", options);
2178 parse_option(o, "ac", "2", options);
2181 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2182 return AVERROR(EINVAL);
2187 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2189 av_free (vstats_filename);
2190 vstats_filename = av_strdup (arg);
2194 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2197 time_t today2 = time(NULL);
2198 struct tm *today = localtime(&today2);
2200 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2202 return opt_vstats_file(NULL, opt, filename);
2205 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2207 OptionsContext *o = optctx;
2208 return parse_option(o, "frames:v", arg, options);
2211 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2213 OptionsContext *o = optctx;
2214 return parse_option(o, "frames:a", arg, options);
2217 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2219 OptionsContext *o = optctx;
2220 return parse_option(o, "frames:d", arg, options);
2223 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2226 AVDictionary *cbak = codec_opts;
2227 AVDictionary *fbak = format_opts;
2231 ret = opt_default(NULL, opt, arg);
2233 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2234 av_dict_copy(&o->g->format_opts, format_opts, 0);
2235 av_dict_free(&codec_opts);
2236 av_dict_free(&format_opts);
2243 static int opt_preset(void *optctx, const char *opt, const char *arg)
2245 OptionsContext *o = optctx;
2247 char filename[1000], line[1000], tmp_line[1000];
2248 const char *codec_name = NULL;
2252 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2254 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2255 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2256 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2258 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2262 while (fgets(line, sizeof(line), f)) {
2263 char *key = tmp_line, *value, *endptr;
2265 if (strcspn(line, "#\n\r") == 0)
2267 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2268 if (!av_strtok(key, "=", &value) ||
2269 !av_strtok(value, "\r\n", &endptr)) {
2270 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2273 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2275 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2276 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2277 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2278 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2279 else if (opt_default_new(o, key, value) < 0) {
2280 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2281 filename, line, key, value);
2291 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2293 OptionsContext *o = optctx;
2294 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2295 int ret = parse_option(o, s, arg, options);
2300 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2302 OptionsContext *o = optctx;
2303 if(!strcmp(opt, "b")){
2304 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2305 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2308 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2312 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2314 OptionsContext *o = optctx;
2317 if(!strcmp(opt, "qscale")){
2318 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2319 return parse_option(o, "q:v", arg, options);
2321 s = av_asprintf("q%s", opt + 6);
2322 ret = parse_option(o, s, arg, options);
2327 static int opt_profile(void *optctx, const char *opt, const char *arg)
2329 OptionsContext *o = optctx;
2330 if(!strcmp(opt, "profile")){
2331 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2332 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2335 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2339 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2341 OptionsContext *o = optctx;
2342 return parse_option(o, "filter:v", arg, options);
2345 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2347 OptionsContext *o = optctx;
2348 return parse_option(o, "filter:a", arg, options);
2351 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2353 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2354 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2355 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2356 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2358 if (video_sync_method == VSYNC_AUTO)
2359 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2363 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2365 OptionsContext *o = optctx;
2366 char *tcr = av_asprintf("timecode=%s", arg);
2367 int ret = parse_option(o, "metadata:g", tcr, options);
2369 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2374 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2376 OptionsContext *o = optctx;
2377 char layout_str[32];
2380 int ret, channels, ac_str_size;
2383 layout = av_get_channel_layout(arg);
2385 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2386 return AVERROR(EINVAL);
2388 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2389 ret = opt_default_new(o, opt, layout_str);
2393 /* set 'ac' option based on channel layout */
2394 channels = av_get_channel_layout_nb_channels(layout);
2395 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2396 stream_str = strchr(opt, ':');
2397 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2398 ac_str = av_mallocz(ac_str_size);
2400 return AVERROR(ENOMEM);
2401 av_strlcpy(ac_str, "ac", 3);
2403 av_strlcat(ac_str, stream_str, ac_str_size);
2404 ret = parse_option(o, ac_str, layout_str, options);
2410 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2412 OptionsContext *o = optctx;
2413 return parse_option(o, "q:a", arg, options);
2416 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2418 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2419 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2420 return AVERROR(ENOMEM);
2421 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2422 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2423 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2424 return AVERROR(ENOMEM);
2428 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2430 uint8_t *graph_desc = read_file(arg);
2432 return AVERROR(EINVAL);
2434 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2435 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2436 return AVERROR(ENOMEM);
2437 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2438 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2442 void show_help_default(const char *opt, const char *arg)
2444 /* per-file options have at least one of those set */
2445 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2446 int show_advanced = 0, show_avoptions = 0;
2449 if (!strcmp(opt, "long"))
2451 else if (!strcmp(opt, "full"))
2452 show_advanced = show_avoptions = 1;
2454 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2459 printf("Getting help:\n"
2460 " -h -- print basic options\n"
2461 " -h long -- print more options\n"
2462 " -h full -- print all options (including all format and codec specific options, very long)\n"
2463 " See man %s for detailed description of the options.\n"
2464 "\n", program_name);
2466 show_help_options(options, "Print help / information / capabilities:",
2469 show_help_options(options, "Global options (affect whole program "
2470 "instead of just one file:",
2471 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2473 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2474 per_file | OPT_EXIT, 0);
2476 show_help_options(options, "Per-file main options:", 0,
2477 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2478 OPT_EXIT, per_file);
2480 show_help_options(options, "Advanced per-file options:",
2481 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2483 show_help_options(options, "Video options:",
2484 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2486 show_help_options(options, "Advanced Video options:",
2487 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2489 show_help_options(options, "Audio options:",
2490 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2492 show_help_options(options, "Advanced Audio options:",
2493 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2494 show_help_options(options, "Subtitle options:",
2495 OPT_SUBTITLE, 0, 0);
2498 if (show_avoptions) {
2499 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2500 show_help_children(avcodec_get_class(), flags);
2501 show_help_children(avformat_get_class(), flags);
2503 show_help_children(sws_get_class(), flags);
2505 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2506 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2510 void show_usage(void)
2512 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2513 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2514 av_log(NULL, AV_LOG_INFO, "\n");
2522 static const OptionGroupDef groups[] = {
2523 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2524 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2527 static int open_files(OptionGroupList *l, const char *inout,
2528 int (*open_file)(OptionsContext*, const char*))
2532 for (i = 0; i < l->nb_groups; i++) {
2533 OptionGroup *g = &l->groups[i];
2539 ret = parse_optgroup(&o, g);
2541 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2542 "%s.\n", inout, g->arg);
2546 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2547 ret = open_file(&o, g->arg);
2550 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2554 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2560 int ffmpeg_parse_options(int argc, char **argv)
2562 OptionParseContext octx;
2566 memset(&octx, 0, sizeof(octx));
2568 /* split the commandline into an internal representation */
2569 ret = split_commandline(&octx, argc, argv, options, groups,
2570 FF_ARRAY_ELEMS(groups));
2572 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2576 /* apply global options */
2577 ret = parse_optgroup(NULL, &octx.global_opts);
2579 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2583 /* open input files */
2584 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2586 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2590 /* open output files */
2591 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2593 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2598 uninit_parse_context(&octx);
2600 av_strerror(ret, error, sizeof(error));
2601 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2606 static int opt_progress(void *optctx, const char *opt, const char *arg)
2608 AVIOContext *avio = NULL;
2611 if (!strcmp(arg, "-"))
2613 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2615 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2616 arg, av_err2str(ret));
2619 progress_avio = avio;
2623 #define OFFSET(x) offsetof(OptionsContext, x)
2624 const OptionDef options[] = {
2626 #include "cmdutils_common_opts.h"
2627 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2628 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2629 "force format", "fmt" },
2630 { "y", OPT_BOOL, { &file_overwrite },
2631 "overwrite output files" },
2632 { "n", OPT_BOOL, { &no_file_overwrite },
2633 "never overwrite output files" },
2634 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2635 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2636 "codec name", "codec" },
2637 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2638 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2639 "codec name", "codec" },
2640 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2641 OPT_OUTPUT, { .off = OFFSET(presets) },
2642 "preset name", "preset" },
2643 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2644 OPT_OUTPUT, { .func_arg = opt_map },
2645 "set input stream mapping",
2646 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2647 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2648 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2649 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2650 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2651 "set metadata information of outfile from infile",
2652 "outfile[,metadata]:infile[,metadata]" },
2653 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2654 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2655 "set chapters mapping", "input_file_index" },
2656 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2657 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2658 "record or transcode \"duration\" seconds of audio/video",
2660 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2661 "record or transcode stop time", "time_stop" },
2662 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2663 "set the limit file size in bytes", "limit_size" },
2664 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2665 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2666 "set the start time offset", "time_off" },
2667 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2668 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2669 "enable/disable accurate seeking with -ss" },
2670 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2671 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2672 "set the input ts offset", "time_off" },
2673 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2674 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2675 "set the input ts scale", "scale" },
2676 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2677 "set the recording timestamp ('now' to set the current time)", "time" },
2678 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2679 "add metadata", "string=string" },
2680 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2681 OPT_OUTPUT, { .func_arg = opt_data_frames },
2682 "set the number of data frames to record", "number" },
2683 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2684 "add timings for benchmarking" },
2685 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2686 "add timings for each task" },
2687 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2688 "write program-readable progress information", "url" },
2689 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2690 "enable or disable interaction on standard input" },
2691 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2692 "set max runtime in seconds", "limit" },
2693 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2694 "dump each input packet" },
2695 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2696 "when dumping packets, also dump the payload" },
2697 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2698 OPT_INPUT, { .off = OFFSET(rate_emu) },
2699 "read input at native frame rate", "" },
2700 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2701 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2702 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2703 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2704 "video sync method", "" },
2705 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2706 "audio sync method", "" },
2707 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2708 "audio drift threshold", "threshold" },
2709 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2710 "copy timestamps" },
2711 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2712 "copy input stream time base when stream copying", "mode" },
2713 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2714 OPT_OUTPUT, { .off = OFFSET(shortest) },
2715 "finish encoding within shortest input" },
2716 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2717 OPT_OUTPUT, { .off = OFFSET(apad) },
2719 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2720 "timestamp discontinuity delta threshold", "threshold" },
2721 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2722 "timestamp error delta threshold", "threshold" },
2723 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2724 "exit on error", "error" },
2725 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2726 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2727 "copy initial non-keyframes" },
2728 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2729 "copy or discard frames before start time" },
2730 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2731 "set the number of frames to record", "number" },
2732 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2733 OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(codec_tags) },
2734 "force codec tag/fourcc", "fourcc/tag" },
2735 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2736 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2737 "use fixed quality scale (VBR)", "q" },
2738 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2739 OPT_OUTPUT, { .func_arg = opt_qscale },
2740 "use fixed quality scale (VBR)", "q" },
2741 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2742 "set profile", "profile" },
2743 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2744 "set stream filtergraph", "filter_graph" },
2745 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2746 "read stream filtergraph description from a file", "filename" },
2747 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2748 "reinit filtergraph on input parameter changes", "" },
2749 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2750 "create a complex filtergraph", "graph_description" },
2751 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2752 "create a complex filtergraph", "graph_description" },
2753 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2754 "read complex filtergraph description from a file", "filename" },
2755 { "stats", OPT_BOOL, { &print_stats },
2756 "print progress report during encoding", },
2757 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2758 OPT_OUTPUT, { .func_arg = opt_attach },
2759 "add an attachment to the output file", "filename" },
2760 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2761 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2762 "extract an attachment into a file", "filename" },
2763 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2764 "print timestamp debugging info" },
2765 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2766 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2769 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2770 "set the number of video frames to record", "number" },
2771 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2772 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2773 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2774 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2775 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2776 "set frame size (WxH or abbreviation)", "size" },
2777 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2778 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2779 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2780 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2781 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2782 "set pixel format", "format" },
2783 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2784 "set the number of bits per raw sample", "number" },
2785 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2786 "deprecated use -g 1" },
2787 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2789 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2790 "discard threshold", "n" },
2791 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2792 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2793 "rate control override for specific intervals", "override" },
2794 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2795 OPT_OUTPUT, { .func_arg = opt_video_codec },
2796 "force video codec ('copy' to copy stream)", "codec" },
2797 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2799 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2801 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2802 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2803 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2804 "select the pass number (1 to 3)", "n" },
2805 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2806 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2807 "select two pass log file name prefix", "prefix" },
2808 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2809 "this option is deprecated, use the yadif filter instead" },
2810 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2811 "calculate PSNR of compressed frames" },
2812 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2813 "dump video coding statistics to file" },
2814 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2815 "dump video coding statistics to file", "file" },
2816 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2817 "set video filters", "filter_graph" },
2818 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2819 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2820 "specify intra matrix coeffs", "matrix" },
2821 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2822 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2823 "specify inter matrix coeffs", "matrix" },
2824 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2825 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2826 "top=1/bottom=0/auto=-1 field first", "" },
2827 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2828 "intra_dc_precision", "precision" },
2829 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2830 OPT_OUTPUT, { .func_arg = opt_old2new },
2831 "force video tag/fourcc", "fourcc/tag" },
2832 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2833 "show QP histogram" },
2834 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2835 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2836 "force the selected framerate, disable the best supported framerate selection" },
2837 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2838 OPT_OUTPUT, { .func_arg = opt_streamid },
2839 "set the value of an outfile streamid", "streamIndex:value" },
2840 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2841 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2842 "force key frames at specified timestamps", "timestamps" },
2843 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2844 "video bitrate (please use -b:v)", "bitrate" },
2847 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2848 "set the number of audio frames to record", "number" },
2849 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2850 "set audio quality (codec-specific)", "quality", },
2851 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2852 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2853 "set audio sampling rate (in Hz)", "rate" },
2854 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2855 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2856 "set number of audio channels", "channels" },
2857 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2859 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2860 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2861 "force audio codec ('copy' to copy stream)", "codec" },
2862 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2863 OPT_OUTPUT, { .func_arg = opt_old2new },
2864 "force audio tag/fourcc", "fourcc/tag" },
2865 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2866 "change audio volume (256=normal)" , "volume" },
2867 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2868 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2869 "set sample format", "format" },
2870 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2871 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2872 "set channel layout", "layout" },
2873 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2874 "set audio filters", "filter_graph" },
2875 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2876 "set the maximum number of channels to try to guess the channel layout" },
2878 /* subtitle options */
2879 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2880 "disable subtitle" },
2881 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2882 "force subtitle codec ('copy' to copy stream)", "codec" },
2883 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2884 , "force subtitle tag/fourcc", "fourcc/tag" },
2885 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2886 "fix subtitles duration" },
2887 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2888 "set canvas size (WxH or abbreviation)", "size" },
2891 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2892 "deprecated, use -channel", "channel" },
2893 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2894 "deprecated, use -standard", "standard" },
2895 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2898 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2899 "set the maximum demux-decode delay", "seconds" },
2900 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2901 "set the initial demux-decode delay", "seconds" },
2902 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
2903 "override the options from ffserver", "" },
2905 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2906 "A comma-separated list of bitstream filters", "bitstream_filters" },
2907 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2908 "deprecated", "audio bitstream_filters" },
2909 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2910 "deprecated", "video bitstream_filters" },
2912 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2913 "set the audio options to the indicated preset", "preset" },
2914 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2915 "set the video options to the indicated preset", "preset" },
2916 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2917 "set the subtitle options to the indicated preset", "preset" },
2918 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2919 "set options from indicated preset file", "filename" },
2920 /* data codec support */
2921 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2922 "force data codec ('copy' to copy stream)", "codec" },
2923 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },