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;\
66 const HWAccel hwaccels[] = {
68 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
73 char *vstats_filename;
75 float audio_drift_threshold = 0.1;
76 float dts_delta_threshold = 10;
77 float dts_error_threshold = 3600*30;
79 int audio_volume = 256;
80 int audio_sync_method = 0;
81 int video_sync_method = VSYNC_AUTO;
82 int do_deinterlace = 0;
84 int do_benchmark_all = 0;
90 int exit_on_error = 0;
93 int stdin_interaction = 1;
94 int frame_bits_per_raw_sample = 0;
95 float max_error_rate = 2.0/3;
98 static int intra_only = 0;
99 static int file_overwrite = 0;
100 static int no_file_overwrite = 0;
101 static int video_discard = 0;
102 static int intra_dc_precision = 8;
103 static int do_psnr = 0;
104 static int input_sync;
105 static int override_ffserver = 0;
107 static void uninit_options(OptionsContext *o)
109 const OptionDef *po = options;
112 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
114 void *dst = (uint8_t*)o + po->u.off;
116 if (po->flags & OPT_SPEC) {
117 SpecifierOpt **so = dst;
118 int i, *count = (int*)(so + 1);
119 for (i = 0; i < *count; i++) {
120 av_freep(&(*so)[i].specifier);
121 if (po->flags & OPT_STRING)
122 av_freep(&(*so)[i].u.str);
126 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
131 for (i = 0; i < o->nb_stream_maps; i++)
132 av_freep(&o->stream_maps[i].linklabel);
133 av_freep(&o->stream_maps);
134 av_freep(&o->audio_channel_maps);
135 av_freep(&o->streamid_map);
136 av_freep(&o->attachments);
139 static void init_options(OptionsContext *o)
141 memset(o, 0, sizeof(*o));
143 o->stop_time = INT64_MAX;
144 o->mux_max_delay = 0.7;
145 o->start_time = AV_NOPTS_VALUE;
146 o->recording_time = INT64_MAX;
147 o->limit_filesize = UINT64_MAX;
148 o->chapters_input_file = INT_MAX;
149 o->accurate_seek = 1;
152 /* return a copy of the input with the stream specifiers removed from the keys */
153 static AVDictionary *strip_specifiers(AVDictionary *dict)
155 AVDictionaryEntry *e = NULL;
156 AVDictionary *ret = NULL;
158 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
159 char *p = strchr(e->key, ':');
163 av_dict_set(&ret, e->key, e->value, 0);
170 static int opt_sameq(void *optctx, const char *opt, const char *arg)
172 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
173 "If you are looking for an option to preserve the quality (which is not "
174 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
176 return AVERROR(EINVAL);
179 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
181 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
182 return opt_default(optctx, "channel", arg);
185 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
187 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
188 return opt_default(optctx, "standard", arg);
191 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
193 OptionsContext *o = optctx;
194 return parse_option(o, "codec:a", arg, options);
197 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
199 OptionsContext *o = optctx;
200 return parse_option(o, "codec:v", arg, options);
203 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
205 OptionsContext *o = optctx;
206 return parse_option(o, "codec:s", arg, options);
209 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
211 OptionsContext *o = optctx;
212 return parse_option(o, "codec:d", arg, options);
215 static int opt_map(void *optctx, const char *opt, const char *arg)
217 OptionsContext *o = optctx;
219 int i, negative = 0, file_idx;
220 int sync_file_idx = -1, sync_stream_idx = 0;
228 map = av_strdup(arg);
230 /* parse sync stream first, just pick first matching stream */
231 if (sync = strchr(map, ',')) {
233 sync_file_idx = strtol(sync + 1, &sync, 0);
234 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
235 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
240 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
241 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
242 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
246 if (i == input_files[sync_file_idx]->nb_streams) {
247 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
248 "match any streams.\n", arg);
255 /* this mapping refers to lavfi output */
256 const char *c = map + 1;
257 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
258 m = &o->stream_maps[o->nb_stream_maps - 1];
259 m->linklabel = av_get_token(&c, "]");
261 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
265 file_idx = strtol(map, &p, 0);
266 if (file_idx >= nb_input_files || file_idx < 0) {
267 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
271 /* disable some already defined maps */
272 for (i = 0; i < o->nb_stream_maps; i++) {
273 m = &o->stream_maps[i];
274 if (file_idx == m->file_index &&
275 check_stream_specifier(input_files[m->file_index]->ctx,
276 input_files[m->file_index]->ctx->streams[m->stream_index],
277 *p == ':' ? p + 1 : p) > 0)
281 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
282 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
283 *p == ':' ? p + 1 : p) <= 0)
285 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
286 m = &o->stream_maps[o->nb_stream_maps - 1];
288 m->file_index = file_idx;
291 if (sync_file_idx >= 0) {
292 m->sync_file_index = sync_file_idx;
293 m->sync_stream_index = sync_stream_idx;
295 m->sync_file_index = file_idx;
296 m->sync_stream_index = i;
302 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
310 static int opt_attach(void *optctx, const char *opt, const char *arg)
312 OptionsContext *o = optctx;
313 GROW_ARRAY(o->attachments, o->nb_attachments);
314 o->attachments[o->nb_attachments - 1] = arg;
318 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
320 OptionsContext *o = optctx;
325 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
326 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
328 /* muted channel syntax */
329 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
330 if ((n == 1 || n == 3) && m->channel_idx == -1) {
331 m->file_idx = m->stream_idx = -1;
333 m->ofile_idx = m->ostream_idx = -1;
338 n = sscanf(arg, "%d.%d.%d:%d.%d",
339 &m->file_idx, &m->stream_idx, &m->channel_idx,
340 &m->ofile_idx, &m->ostream_idx);
342 if (n != 3 && n != 5) {
343 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
344 "[file.stream.channel|-1][:syncfile:syncstream]\n");
348 if (n != 5) // only file.stream.channel specified
349 m->ofile_idx = m->ostream_idx = -1;
352 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
353 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
357 if (m->stream_idx < 0 ||
358 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
359 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
360 m->file_idx, m->stream_idx);
363 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
364 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
365 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
366 m->file_idx, m->stream_idx);
369 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
370 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
371 m->file_idx, m->stream_idx, m->channel_idx);
378 * Parse a metadata specifier passed as 'arg' parameter.
379 * @param arg metadata string to parse
380 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
381 * @param index for type c/p, chapter/program index is written here
382 * @param stream_spec for type s, the stream specifier is written here
384 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
392 if (*(++arg) && *arg != ':') {
393 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
396 *stream_spec = *arg == ':' ? arg + 1 : "";
401 *index = strtol(++arg, NULL, 0);
404 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
411 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
413 AVDictionary **meta_in = NULL;
414 AVDictionary **meta_out = NULL;
416 char type_in, type_out;
417 const char *istream_spec = NULL, *ostream_spec = NULL;
418 int idx_in = 0, idx_out = 0;
420 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
421 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
424 if (type_out == 'g' || !*outspec)
425 o->metadata_global_manual = 1;
426 if (type_out == 's' || !*outspec)
427 o->metadata_streams_manual = 1;
428 if (type_out == 'c' || !*outspec)
429 o->metadata_chapters_manual = 1;
433 if (type_in == 'g' || type_out == 'g')
434 o->metadata_global_manual = 1;
435 if (type_in == 's' || type_out == 's')
436 o->metadata_streams_manual = 1;
437 if (type_in == 'c' || type_out == 'c')
438 o->metadata_chapters_manual = 1;
440 /* ic is NULL when just disabling automatic mappings */
444 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
445 if ((index) < 0 || (index) >= (nb_elems)) {\
446 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
451 #define SET_DICT(type, meta, context, index)\
454 meta = &context->metadata;\
457 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
458 meta = &context->chapters[index]->metadata;\
461 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
462 meta = &context->programs[index]->metadata;\
465 break; /* handled separately below */ \
466 default: av_assert0(0);\
469 SET_DICT(type_in, meta_in, ic, idx_in);
470 SET_DICT(type_out, meta_out, oc, idx_out);
472 /* for input streams choose first matching stream */
473 if (type_in == 's') {
474 for (i = 0; i < ic->nb_streams; i++) {
475 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
476 meta_in = &ic->streams[i]->metadata;
482 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
487 if (type_out == 's') {
488 for (i = 0; i < oc->nb_streams; i++) {
489 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
490 meta_out = &oc->streams[i]->metadata;
491 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
496 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
501 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
503 OptionsContext *o = optctx;
505 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
506 struct tm time = *gmtime((time_t*)&recording_timestamp);
507 strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time);
508 parse_option(o, "metadata", buf, options);
510 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
511 "tag instead.\n", opt);
515 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
517 const AVCodecDescriptor *desc;
518 const char *codec_string = encoder ? "encoder" : "decoder";
522 avcodec_find_encoder_by_name(name) :
523 avcodec_find_decoder_by_name(name);
525 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
526 codec = encoder ? avcodec_find_encoder(desc->id) :
527 avcodec_find_decoder(desc->id);
529 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
530 codec_string, codec->name, desc->name);
534 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
537 if (codec->type != type) {
538 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
544 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
546 char *codec_name = NULL;
548 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
550 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
551 st->codec->codec_id = codec->id;
554 return avcodec_find_decoder(st->codec->codec_id);
557 /* Add all the streams from the given input file to the global
558 * list of input streams. */
559 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
563 for (i = 0; i < ic->nb_streams; i++) {
564 AVStream *st = ic->streams[i];
565 AVCodecContext *dec = st->codec;
566 InputStream *ist = av_mallocz(sizeof(*ist));
567 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
568 char *codec_tag = NULL;
574 GROW_ARRAY(input_streams, nb_input_streams);
575 input_streams[nb_input_streams - 1] = ist;
578 ist->file_index = nb_input_files;
580 st->discard = AVDISCARD_ALL;
583 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
585 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
587 uint32_t tag = strtol(codec_tag, &next, 0);
589 tag = AV_RL32(codec_tag);
590 st->codec->codec_tag = tag;
593 ist->dec = choose_decoder(o, ic, st);
594 ist->opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
596 ist->reinit_filters = -1;
597 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
599 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
601 switch (dec->codec_type) {
602 case AVMEDIA_TYPE_VIDEO:
604 ist->dec = avcodec_find_decoder(dec->codec_id);
605 if (av_codec_get_lowres(dec)) {
606 dec->flags |= CODEC_FLAG_EMU_EDGE;
609 ist->resample_height = dec->height;
610 ist->resample_width = dec->width;
611 ist->resample_pix_fmt = dec->pix_fmt;
613 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
614 if (framerate && av_parse_video_rate(&ist->framerate,
616 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
621 ist->top_field_first = -1;
622 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
624 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
626 if (!strcmp(hwaccel, "none"))
627 ist->hwaccel_id = HWACCEL_NONE;
628 else if (!strcmp(hwaccel, "auto"))
629 ist->hwaccel_id = HWACCEL_AUTO;
632 for (i = 0; hwaccels[i].name; i++) {
633 if (!strcmp(hwaccels[i].name, hwaccel)) {
634 ist->hwaccel_id = hwaccels[i].id;
639 if (!ist->hwaccel_id) {
640 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
642 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
643 for (i = 0; hwaccels[i].name; i++)
644 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
645 av_log(NULL, AV_LOG_FATAL, "\n");
651 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
652 if (hwaccel_device) {
653 ist->hwaccel_device = av_strdup(hwaccel_device);
654 if (!ist->hwaccel_device)
657 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
660 case AVMEDIA_TYPE_AUDIO:
661 ist->guess_layout_max = INT_MAX;
662 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
663 guess_input_channel_layout(ist);
665 ist->resample_sample_fmt = dec->sample_fmt;
666 ist->resample_sample_rate = dec->sample_rate;
667 ist->resample_channels = dec->channels;
668 ist->resample_channel_layout = dec->channel_layout;
671 case AVMEDIA_TYPE_DATA:
672 case AVMEDIA_TYPE_SUBTITLE: {
673 char *canvas_size = NULL;
675 ist->dec = avcodec_find_decoder(dec->codec_id);
676 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
677 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
679 av_parse_video_size(&dec->width, &dec->height, canvas_size) < 0) {
680 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
685 case AVMEDIA_TYPE_ATTACHMENT:
686 case AVMEDIA_TYPE_UNKNOWN:
694 static void assert_file_overwrite(const char *filename)
696 if (file_overwrite && no_file_overwrite) {
697 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
701 if (!file_overwrite) {
702 const char *proto_name = avio_find_protocol_name(filename);
703 if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
704 if (stdin_interaction && !no_file_overwrite) {
705 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
708 signal(SIGINT, SIG_DFL);
710 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
716 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
723 static void dump_attachment(AVStream *st, const char *filename)
726 AVIOContext *out = NULL;
727 AVDictionaryEntry *e;
729 if (!st->codec->extradata_size) {
730 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
731 nb_input_files - 1, st->index);
734 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
737 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
738 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
742 assert_file_overwrite(filename);
744 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
745 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
750 avio_write(out, st->codec->extradata, st->codec->extradata_size);
755 static int open_input_file(OptionsContext *o, const char *filename)
759 AVInputFormat *file_iformat = NULL;
764 AVDictionary *unused_opts = NULL;
765 AVDictionaryEntry *e = NULL;
766 int orig_nb_streams; // number of streams before avformat_find_stream_info
767 char * video_codec_name = NULL;
768 char * audio_codec_name = NULL;
769 char *subtitle_codec_name = NULL;
772 if (!(file_iformat = av_find_input_format(o->format))) {
773 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
778 if (!strcmp(filename, "-"))
781 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
782 strcmp(filename, "/dev/stdin");
784 /* get default parameters from command line */
785 ic = avformat_alloc_context();
787 print_error(filename, AVERROR(ENOMEM));
790 if (o->nb_audio_sample_rate) {
791 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
792 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
794 if (o->nb_audio_channels) {
795 /* because we set audio_channels based on both the "ac" and
796 * "channel_layout" options, we need to check that the specified
797 * demuxer actually has the "channels" option before setting it */
798 if (file_iformat && file_iformat->priv_class &&
799 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
800 AV_OPT_SEARCH_FAKE_OBJ)) {
801 snprintf(buf, sizeof(buf), "%d",
802 o->audio_channels[o->nb_audio_channels - 1].u.i);
803 av_dict_set(&o->g->format_opts, "channels", buf, 0);
806 if (o->nb_frame_rates) {
807 /* set the format-level framerate option;
808 * this is important for video grabbers, e.g. x11 */
809 if (file_iformat && file_iformat->priv_class &&
810 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
811 AV_OPT_SEARCH_FAKE_OBJ)) {
812 av_dict_set(&o->g->format_opts, "framerate",
813 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
816 if (o->nb_frame_sizes) {
817 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
819 if (o->nb_frame_pix_fmts)
820 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
822 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
823 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
824 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
826 ic->video_codec_id = video_codec_name ?
827 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
828 ic->audio_codec_id = audio_codec_name ?
829 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
830 ic->subtitle_codec_id= subtitle_codec_name ?
831 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
833 if (video_codec_name)
834 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
835 if (audio_codec_name)
836 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
837 if (subtitle_codec_name)
838 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
840 ic->flags |= AVFMT_FLAG_NONBLOCK;
841 ic->interrupt_callback = int_cb;
843 /* open the input file with generic avformat function */
844 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
846 print_error(filename, err);
849 assert_avoptions(o->g->format_opts);
851 /* apply forced codec ids */
852 for (i = 0; i < ic->nb_streams; i++)
853 choose_decoder(o, ic, ic->streams[i]);
855 /* Set AVCodecContext options for avformat_find_stream_info */
856 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
857 orig_nb_streams = ic->nb_streams;
859 /* If not enough info to get the stream parameters, we decode the
860 first frames to get it. (used in mpeg case for example) */
861 ret = avformat_find_stream_info(ic, opts);
863 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
864 avformat_close_input(&ic);
868 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
869 /* add the stream start time */
870 if (ic->start_time != AV_NOPTS_VALUE)
871 timestamp += ic->start_time;
873 /* if seeking requested, we execute it */
874 if (o->start_time != AV_NOPTS_VALUE) {
875 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
877 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
878 filename, (double)timestamp / AV_TIME_BASE);
882 /* update the current parameters so that they match the one of the input stream */
883 add_input_streams(o, ic);
885 /* dump the file content */
886 av_dump_format(ic, nb_input_files, filename, 0);
888 GROW_ARRAY(input_files, nb_input_files);
889 f = av_mallocz(sizeof(*f));
892 input_files[nb_input_files - 1] = f;
895 f->ist_index = nb_input_streams - ic->nb_streams;
896 f->start_time = o->start_time;
897 f->recording_time = o->recording_time;
898 f->input_ts_offset = o->input_ts_offset;
899 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
900 f->nb_streams = ic->nb_streams;
901 f->rate_emu = o->rate_emu;
902 f->accurate_seek = o->accurate_seek;
904 /* check if all codec options have been used */
905 unused_opts = strip_specifiers(o->g->codec_opts);
906 for (i = f->ist_index; i < nb_input_streams; i++) {
908 while ((e = av_dict_get(input_streams[i]->opts, "", e,
909 AV_DICT_IGNORE_SUFFIX)))
910 av_dict_set(&unused_opts, e->key, NULL, 0);
914 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
915 const AVClass *class = avcodec_get_class();
916 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
917 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
918 const AVClass *fclass = avformat_get_class();
919 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
920 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
921 if (!option || foption)
925 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
926 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
927 "input file #%d (%s) is not a decoding option.\n", e->key,
928 option->help ? option->help : "", nb_input_files - 1,
933 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
934 "input file #%d (%s) has not been used for any stream. The most "
935 "likely reason is either wrong type (e.g. a video option with "
936 "no video streams) or that it is a private option of some decoder "
937 "which was not actually used for any stream.\n", e->key,
938 option->help ? option->help : "", nb_input_files - 1, filename);
940 av_dict_free(&unused_opts);
942 for (i = 0; i < o->nb_dump_attachment; i++) {
945 for (j = 0; j < ic->nb_streams; j++) {
946 AVStream *st = ic->streams[j];
948 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
949 dump_attachment(st, o->dump_attachment[i].u.str);
953 for (i = 0; i < orig_nb_streams; i++)
954 av_dict_free(&opts[i]);
960 static uint8_t *get_line(AVIOContext *s)
966 if (avio_open_dyn_buf(&line) < 0) {
967 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
971 while ((c = avio_r8(s)) && c != '\n')
974 avio_close_dyn_buf(line, &buf);
979 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
983 const char *base[3] = { getenv("AVCONV_DATADIR"),
988 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
992 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
993 i != 1 ? "" : "/.avconv", codec_name, preset_name);
994 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
997 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
998 i != 1 ? "" : "/.avconv", preset_name);
999 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1005 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
1007 char *codec_name = NULL;
1009 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
1011 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
1012 NULL, ost->st->codec->codec_type);
1013 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1014 } else if (!strcmp(codec_name, "copy"))
1015 ost->stream_copy = 1;
1017 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
1018 ost->st->codec->codec_id = ost->enc->id;
1022 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
1025 AVStream *st = avformat_new_stream(oc, NULL);
1026 int idx = oc->nb_streams - 1, ret = 0;
1027 char *bsf = NULL, *next, *codec_tag = NULL;
1028 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
1033 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
1037 if (oc->nb_streams - 1 < o->nb_streamid_map)
1038 st->id = o->streamid_map[oc->nb_streams - 1];
1040 GROW_ARRAY(output_streams, nb_output_streams);
1041 if (!(ost = av_mallocz(sizeof(*ost))))
1043 output_streams[nb_output_streams - 1] = ost;
1045 ost->file_index = nb_output_files - 1;
1048 st->codec->codec_type = type;
1049 choose_encoder(o, oc, ost);
1051 AVIOContext *s = NULL;
1052 char *buf = NULL, *arg = NULL, *preset = NULL;
1054 ost->opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1056 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1057 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1060 if (!buf[0] || buf[0] == '#') {
1064 if (!(arg = strchr(buf, '='))) {
1065 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1069 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1071 } while (!s->eof_reached);
1075 av_log(NULL, AV_LOG_FATAL,
1076 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1077 preset, ost->file_index, ost->index);
1081 ost->opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1084 avcodec_get_context_defaults3(st->codec, ost->enc);
1085 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
1087 ost->max_frames = INT64_MAX;
1088 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1089 for (i = 0; i<o->nb_max_frames; i++) {
1090 char *p = o->max_frames[i].specifier;
1091 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1092 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1097 ost->copy_prior_start = -1;
1098 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1100 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1102 if (next = strchr(bsf, ','))
1104 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1105 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1109 bsfc_prev->next = bsfc;
1111 ost->bitstream_filters = bsfc;
1117 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1119 uint32_t tag = strtol(codec_tag, &next, 0);
1121 tag = AV_RL32(codec_tag);
1122 st->codec->codec_tag = tag;
1125 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1127 st->codec->flags |= CODEC_FLAG_QSCALE;
1128 st->codec->global_quality = FF_QP2LAMBDA * qscale;
1131 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1132 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
1134 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1136 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1137 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1138 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1140 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1142 ost->source_index = source_index;
1143 if (source_index >= 0) {
1144 ost->sync_ist = input_streams[source_index];
1145 input_streams[source_index]->discard = 0;
1146 input_streams[source_index]->st->discard = AVDISCARD_NONE;
1148 ost->last_mux_dts = AV_NOPTS_VALUE;
1153 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1156 const char *p = str;
1163 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1170 /* read file contents into a string */
1171 static uint8_t *read_file(const char *filename)
1173 AVIOContext *pb = NULL;
1174 AVIOContext *dyn_buf = NULL;
1175 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1176 uint8_t buf[1024], *str;
1179 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1183 ret = avio_open_dyn_buf(&dyn_buf);
1188 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1189 avio_write(dyn_buf, buf, ret);
1190 avio_w8(dyn_buf, 0);
1193 ret = avio_close_dyn_buf(dyn_buf, &str);
1199 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1202 AVStream *st = ost->st;
1204 if (ost->filters_script && ost->filters) {
1205 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1206 "output stream #%d:%d.\n", nb_output_files, st->index);
1210 if (ost->filters_script)
1211 return read_file(ost->filters_script);
1212 else if (ost->filters)
1213 return av_strdup(ost->filters);
1215 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1219 static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1220 const OutputStream *ost, enum AVMediaType type)
1222 if (ost->filters_script || ost->filters) {
1223 av_log(NULL, AV_LOG_ERROR,
1224 "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
1225 "Filtering and streamcopy cannot be used together.\n",
1226 ost->filters ? "Filtergraph" : "Filtergraph script",
1227 ost->filters ? ost->filters : ost->filters_script,
1228 av_get_media_type_string(type), ost->file_index, ost->index);
1233 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1237 AVCodecContext *video_enc;
1238 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1240 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1242 video_enc = st->codec;
1244 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1245 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1246 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1250 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1251 if (frame_aspect_ratio) {
1253 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1254 q.num <= 0 || q.den <= 0) {
1255 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1258 ost->frame_aspect_ratio = q;
1261 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1262 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1264 if (!ost->stream_copy) {
1265 const char *p = NULL;
1266 char *frame_size = NULL;
1267 char *frame_pix_fmt = NULL;
1268 char *intra_matrix = NULL, *inter_matrix = NULL;
1269 char *chroma_intra_matrix = NULL;
1273 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1274 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1275 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1279 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1280 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1281 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1282 ost->keep_pix_fmt = 1;
1283 if (!*++frame_pix_fmt)
1284 frame_pix_fmt = NULL;
1286 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1287 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1290 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1293 video_enc->gop_size = 0;
1294 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1296 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1297 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1300 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1302 MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
1303 if (chroma_intra_matrix) {
1304 uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
1306 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1309 av_codec_set_chroma_intra_matrix(video_enc, p);
1310 parse_matrix_coeffs(p, chroma_intra_matrix);
1312 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1314 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1315 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1318 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1321 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1322 for (i = 0; p; i++) {
1324 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1326 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1329 /* FIXME realloc failure */
1330 video_enc->rc_override =
1331 av_realloc(video_enc->rc_override,
1332 sizeof(RcOverride) * (i + 1));
1333 video_enc->rc_override[i].start_frame = start;
1334 video_enc->rc_override[i].end_frame = end;
1336 video_enc->rc_override[i].qscale = q;
1337 video_enc->rc_override[i].quality_factor = 1.0;
1340 video_enc->rc_override[i].qscale = 0;
1341 video_enc->rc_override[i].quality_factor = -q/100.0;
1346 video_enc->rc_override_count = i;
1347 video_enc->intra_dc_precision = intra_dc_precision - 8;
1350 video_enc->flags|= CODEC_FLAG_PSNR;
1353 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1356 video_enc->flags |= CODEC_FLAG_PASS1;
1357 av_dict_set(&ost->opts, "flags", "+pass1", AV_DICT_APPEND);
1360 video_enc->flags |= CODEC_FLAG_PASS2;
1361 av_dict_set(&ost->opts, "flags", "+pass2", AV_DICT_APPEND);
1365 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1366 if (ost->logfile_prefix &&
1367 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1370 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1371 if (ost->forced_keyframes)
1372 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1374 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1376 ost->top_field_first = -1;
1377 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1380 ost->avfilter = get_ost_filters(o, oc, ost);
1384 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1387 if (ost->stream_copy)
1388 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1393 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1398 AVCodecContext *audio_enc;
1400 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1403 audio_enc = st->codec;
1404 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1406 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1407 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1409 if (!ost->stream_copy) {
1410 char *sample_fmt = NULL;
1412 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1414 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1416 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1417 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1421 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1423 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1424 ost->apad = av_strdup(ost->apad);
1426 ost->avfilter = get_ost_filters(o, oc, ost);
1430 /* check for channel mapping for this audio stream */
1431 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1432 AudioChannelMap *map = &o->audio_channel_maps[n];
1433 InputStream *ist = input_streams[ost->source_index];
1434 if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
1435 (map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1436 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1437 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1438 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1440 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1441 ost->file_index, ost->st->index);
1446 if (ost->stream_copy)
1447 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1452 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1456 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1457 if (!ost->stream_copy) {
1458 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1465 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1467 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1468 ost->stream_copy = 1;
1473 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1477 AVCodecContext *subtitle_enc;
1479 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1481 subtitle_enc = st->codec;
1483 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1485 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1487 if (!ost->stream_copy) {
1488 char *frame_size = NULL;
1490 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1491 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1492 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1500 /* arg format is "output-stream-index:streamid-value". */
1501 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1503 OptionsContext *o = optctx;
1508 av_strlcpy(idx_str, arg, sizeof(idx_str));
1509 p = strchr(idx_str, ':');
1511 av_log(NULL, AV_LOG_FATAL,
1512 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1517 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1518 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1519 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1523 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1525 AVFormatContext *is = ifile->ctx;
1526 AVFormatContext *os = ofile->ctx;
1530 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1532 return AVERROR(ENOMEM);
1535 for (i = 0; i < is->nb_chapters; i++) {
1536 AVChapter *in_ch = is->chapters[i], *out_ch;
1537 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1538 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1539 AV_TIME_BASE_Q, in_ch->time_base);
1540 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1541 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1544 if (in_ch->end < ts_off)
1546 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1549 out_ch = av_mallocz(sizeof(AVChapter));
1551 return AVERROR(ENOMEM);
1553 out_ch->id = in_ch->id;
1554 out_ch->time_base = in_ch->time_base;
1555 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1556 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1559 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1561 os->chapters[os->nb_chapters++] = out_ch;
1566 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1569 AVFormatContext *ic = avformat_alloc_context();
1571 ic->interrupt_callback = int_cb;
1572 err = avformat_open_input(&ic, filename, NULL, NULL);
1575 /* copy stream format */
1576 for(i=0;i<ic->nb_streams;i++) {
1580 AVCodecContext *avctx;
1582 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1583 ost = new_output_stream(o, s, codec->type, -1);
1588 // FIXME: a more elegant solution is needed
1589 memcpy(st, ic->streams[i], sizeof(AVStream));
1591 st->info = av_malloc(sizeof(*st->info));
1592 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1594 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1596 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1597 choose_sample_fmt(st, codec);
1598 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1599 choose_pixel_fmt(st, codec, st->codec->pix_fmt);
1602 avformat_close_input(&ic);
1606 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1607 AVFormatContext *oc)
1611 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1612 ofilter->out_tmp->pad_idx)) {
1613 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1614 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1616 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1621 ost->source_index = -1;
1622 ost->filter = ofilter;
1626 if (ost->stream_copy) {
1627 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1628 "which is fed from a complex filtergraph. Filtering and streamcopy "
1629 "cannot be used together.\n", ost->file_index, ost->index);
1633 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1634 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1635 av_log(NULL, AV_LOG_ERROR,
1636 "%s '%s' was specified through the %s option "
1637 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1638 "%s and -filter_complex cannot be used together for the same stream.\n",
1639 ost->filters ? "Filtergraph" : "Filtergraph script",
1640 ost->filters ? ost->filters : ost->filters_script,
1641 opt, ost->file_index, ost->index, opt);
1645 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1646 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1649 avfilter_inout_free(&ofilter->out_tmp);
1652 static int configure_complex_filters(void)
1656 for (i = 0; i < nb_filtergraphs; i++)
1657 if (!filtergraphs[i]->graph &&
1658 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1663 static int open_output_file(OptionsContext *o, const char *filename)
1665 AVFormatContext *oc;
1667 AVOutputFormat *file_oformat;
1671 AVDictionary *unused_opts = NULL;
1672 AVDictionaryEntry *e = NULL;
1674 if (configure_complex_filters() < 0) {
1675 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1679 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1680 o->stop_time = INT64_MAX;
1681 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1684 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1685 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1686 if (o->stop_time <= start_time) {
1687 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1688 o->stop_time = INT64_MAX;
1690 o->recording_time = o->stop_time - start_time;
1694 GROW_ARRAY(output_files, nb_output_files);
1695 of = av_mallocz(sizeof(*of));
1698 output_files[nb_output_files - 1] = of;
1700 of->ost_index = nb_output_streams;
1701 of->recording_time = o->recording_time;
1702 of->start_time = o->start_time;
1703 of->limit_filesize = o->limit_filesize;
1704 of->shortest = o->shortest;
1705 av_dict_copy(&of->opts, o->g->format_opts, 0);
1707 if (!strcmp(filename, "-"))
1710 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1712 print_error(filename, err);
1717 if (o->recording_time != INT64_MAX)
1718 oc->duration = o->recording_time;
1720 file_oformat= oc->oformat;
1721 oc->interrupt_callback = int_cb;
1723 /* create streams for all unlabeled output pads */
1724 for (i = 0; i < nb_filtergraphs; i++) {
1725 FilterGraph *fg = filtergraphs[i];
1726 for (j = 0; j < fg->nb_outputs; j++) {
1727 OutputFilter *ofilter = fg->outputs[j];
1729 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1732 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1733 ofilter->out_tmp->pad_idx)) {
1734 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1735 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1736 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1738 init_output_filter(ofilter, o, oc);
1742 /* ffserver seeking with date=... needs a date reference */
1743 if (!strcmp(file_oformat->name, "ffm") &&
1744 av_strstart(filename, "http:", NULL)) {
1745 int err = parse_option(o, "metadata", "creation_time=now", options);
1747 print_error(filename, err);
1752 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1753 av_strstart(filename, "http:", NULL)) {
1755 /* special case for files sent to ffserver: we get the stream
1756 parameters from ffserver */
1757 int err = read_ffserver_streams(o, oc, filename);
1759 print_error(filename, err);
1762 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1763 ost = output_streams[j];
1764 for (i = 0; i < nb_input_streams; i++) {
1765 ist = input_streams[i];
1766 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1768 ost->source_index= i;
1769 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1770 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1772 ist->st->discard = AVDISCARD_NONE;
1777 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));
1781 } else if (!o->nb_stream_maps) {
1782 char *subtitle_codec_name = NULL;
1783 /* pick the "best" stream of each type */
1785 /* video: highest resolution */
1786 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1787 int area = 0, idx = -1;
1788 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1789 for (i = 0; i < nb_input_streams; i++) {
1791 ist = input_streams[i];
1792 new_area = ist->st->codec->width * ist->st->codec->height;
1793 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1795 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1797 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1804 new_video_stream(o, oc, idx);
1807 /* audio: most channels */
1808 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1809 int channels = 0, idx = -1;
1810 for (i = 0; i < nb_input_streams; i++) {
1811 ist = input_streams[i];
1812 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1813 ist->st->codec->channels > channels) {
1814 channels = ist->st->codec->channels;
1819 new_audio_stream(o, oc, idx);
1822 /* subtitles: pick first */
1823 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1824 if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
1825 for (i = 0; i < nb_input_streams; i++)
1826 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1827 new_subtitle_stream(o, oc, i);
1831 /* do something with data? */
1833 for (i = 0; i < o->nb_stream_maps; i++) {
1834 StreamMap *map = &o->stream_maps[i];
1839 if (map->linklabel) {
1841 OutputFilter *ofilter = NULL;
1844 for (j = 0; j < nb_filtergraphs; j++) {
1845 fg = filtergraphs[j];
1846 for (k = 0; k < fg->nb_outputs; k++) {
1847 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1848 if (out && !strcmp(out->name, map->linklabel)) {
1849 ofilter = fg->outputs[k];
1856 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1857 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1860 init_output_filter(ofilter, o, oc);
1862 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1864 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1865 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1867 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1869 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1871 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1874 switch (ist->st->codec->codec_type) {
1875 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1876 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1877 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1878 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1879 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1881 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1882 map->file_index, map->stream_index);
1889 /* handle attached files */
1890 for (i = 0; i < o->nb_attachments; i++) {
1892 uint8_t *attachment;
1896 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1897 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1901 if ((len = avio_size(pb)) <= 0) {
1902 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1906 if (!(attachment = av_malloc(len))) {
1907 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1911 avio_read(pb, attachment, len);
1913 ost = new_attachment_stream(o, oc, -1);
1914 ost->stream_copy = 0;
1915 ost->attachment_filename = o->attachments[i];
1917 ost->st->codec->extradata = attachment;
1918 ost->st->codec->extradata_size = len;
1920 p = strrchr(o->attachments[i], '/');
1921 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1925 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1926 AVDictionaryEntry *e;
1927 ost = output_streams[i];
1929 if ((ost->stream_copy || ost->attachment_filename)
1930 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1931 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1932 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1936 /* check if all codec options have been used */
1937 unused_opts = strip_specifiers(o->g->codec_opts);
1938 for (i = of->ost_index; i < nb_output_streams; i++) {
1940 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1941 AV_DICT_IGNORE_SUFFIX)))
1942 av_dict_set(&unused_opts, e->key, NULL, 0);
1946 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1947 const AVClass *class = avcodec_get_class();
1948 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1949 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1952 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1953 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1954 "output file #%d (%s) is not an encoding option.\n", e->key,
1955 option->help ? option->help : "", nb_output_files - 1,
1960 // gop_timecode is injected by generic code but not always used
1961 if (!strcmp(e->key, "gop_timecode"))
1964 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1965 "output file #%d (%s) has not been used for any stream. The most "
1966 "likely reason is either wrong type (e.g. a video option with "
1967 "no video streams) or that it is a private option of some encoder "
1968 "which was not actually used for any stream.\n", e->key,
1969 option->help ? option->help : "", nb_output_files - 1, filename);
1971 av_dict_free(&unused_opts);
1973 /* check filename in case of an image number is expected */
1974 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1975 if (!av_filename_number_test(oc->filename)) {
1976 print_error(oc->filename, AVERROR(EINVAL));
1981 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1982 /* test if it already exists to avoid losing precious files */
1983 assert_file_overwrite(filename);
1986 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1987 &oc->interrupt_callback,
1989 print_error(filename, err);
1992 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
1993 assert_file_overwrite(filename);
1995 if (o->mux_preload) {
1997 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1998 av_dict_set(&of->opts, "preload", buf, 0);
2000 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2003 for (i = 0; i < o->nb_metadata_map; i++) {
2005 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2007 if (in_file_index >= nb_input_files) {
2008 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2011 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2012 in_file_index >= 0 ?
2013 input_files[in_file_index]->ctx : NULL, o);
2017 if (o->chapters_input_file >= nb_input_files) {
2018 if (o->chapters_input_file == INT_MAX) {
2019 /* copy chapters from the first input file that has them*/
2020 o->chapters_input_file = -1;
2021 for (i = 0; i < nb_input_files; i++)
2022 if (input_files[i]->ctx->nb_chapters) {
2023 o->chapters_input_file = i;
2027 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2028 o->chapters_input_file);
2032 if (o->chapters_input_file >= 0)
2033 copy_chapters(input_files[o->chapters_input_file], of,
2034 !o->metadata_chapters_manual);
2036 /* copy global metadata by default */
2037 if (!o->metadata_global_manual && nb_input_files){
2038 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2039 AV_DICT_DONT_OVERWRITE);
2040 if(o->recording_time != INT64_MAX)
2041 av_dict_set(&oc->metadata, "duration", NULL, 0);
2042 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2044 if (!o->metadata_streams_manual)
2045 for (i = of->ost_index; i < nb_output_streams; i++) {
2047 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2049 ist = input_streams[output_streams[i]->source_index];
2050 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2053 /* process manually set metadata */
2054 for (i = 0; i < o->nb_metadata; i++) {
2057 const char *stream_spec;
2058 int index = 0, j, ret = 0;
2060 val = strchr(o->metadata[i].u.str, '=');
2062 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2063 o->metadata[i].u.str);
2068 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2070 for (j = 0; j < oc->nb_streams; j++) {
2071 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2072 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2083 if (index < 0 || index >= oc->nb_chapters) {
2084 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2087 m = &oc->chapters[index]->metadata;
2090 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2093 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2100 static int opt_target(void *optctx, const char *opt, const char *arg)
2102 OptionsContext *o = optctx;
2103 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2104 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2106 if (!strncmp(arg, "pal-", 4)) {
2109 } else if (!strncmp(arg, "ntsc-", 5)) {
2112 } else if (!strncmp(arg, "film-", 5)) {
2116 /* Try to determine PAL/NTSC by peeking in the input files */
2117 if (nb_input_files) {
2119 for (j = 0; j < nb_input_files; j++) {
2120 for (i = 0; i < input_files[j]->nb_streams; i++) {
2121 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2122 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2124 fr = c->time_base.den * 1000 / c->time_base.num;
2128 } else if ((fr == 29970) || (fr == 23976)) {
2133 if (norm != UNKNOWN)
2137 if (norm != UNKNOWN)
2138 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2141 if (norm == UNKNOWN) {
2142 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2143 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2144 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2148 if (!strcmp(arg, "vcd")) {
2149 opt_video_codec(o, "c:v", "mpeg1video");
2150 opt_audio_codec(o, "c:a", "mp2");
2151 parse_option(o, "f", "vcd", options);
2153 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2154 parse_option(o, "r", frame_rates[norm], options);
2155 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2157 av_dict_set(&o->g->codec_opts, "b:v", "1150000", AV_DICT_DONT_OVERWRITE);
2158 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", AV_DICT_DONT_OVERWRITE);
2159 av_dict_set(&o->g->codec_opts, "minrate", "1150000", AV_DICT_DONT_OVERWRITE);
2160 av_dict_set(&o->g->codec_opts, "bufsize", "327680", AV_DICT_DONT_OVERWRITE); // 40*1024*8;
2162 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2163 parse_option(o, "ar", "44100", options);
2164 parse_option(o, "ac", "2", options);
2166 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2167 av_dict_set(&o->g->format_opts, "muxrate", "1411200", AV_DICT_DONT_OVERWRITE); // 2352 * 75 * 8;
2169 /* We have to offset the PTS, so that it is consistent with the SCR.
2170 SCR starts at 36000, but the first two packs contain only padding
2171 and the first pack from the other stream, respectively, may also have
2172 been written before.
2173 So the real data starts at SCR 36000+3*1200. */
2174 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2175 } else if (!strcmp(arg, "svcd")) {
2177 opt_video_codec(o, "c:v", "mpeg2video");
2178 opt_audio_codec(o, "c:a", "mp2");
2179 parse_option(o, "f", "svcd", options);
2181 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2182 parse_option(o, "r", frame_rates[norm], options);
2183 parse_option(o, "pix_fmt", "yuv420p", options);
2184 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2186 av_dict_set(&o->g->codec_opts, "b:v", "2040000", AV_DICT_DONT_OVERWRITE);
2187 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", AV_DICT_DONT_OVERWRITE);
2188 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1145000;
2189 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2190 av_dict_set(&o->g->codec_opts, "scan_offset", "1", AV_DICT_DONT_OVERWRITE);
2192 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2193 parse_option(o, "ar", "44100", options);
2195 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2197 } else if (!strcmp(arg, "dvd")) {
2199 opt_video_codec(o, "c:v", "mpeg2video");
2200 opt_audio_codec(o, "c:a", "ac3");
2201 parse_option(o, "f", "dvd", options);
2203 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2204 parse_option(o, "r", frame_rates[norm], options);
2205 parse_option(o, "pix_fmt", "yuv420p", options);
2206 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2208 av_dict_set(&o->g->codec_opts, "b:v", "6000000", AV_DICT_DONT_OVERWRITE);
2209 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", AV_DICT_DONT_OVERWRITE);
2210 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1500000;
2211 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2213 av_dict_set(&o->g->format_opts, "packetsize", "2048", AV_DICT_DONT_OVERWRITE); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2214 av_dict_set(&o->g->format_opts, "muxrate", "10080000", AV_DICT_DONT_OVERWRITE); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2216 av_dict_set(&o->g->codec_opts, "b:a", "448000", AV_DICT_DONT_OVERWRITE);
2217 parse_option(o, "ar", "48000", options);
2219 } else if (!strncmp(arg, "dv", 2)) {
2221 parse_option(o, "f", "dv", options);
2223 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2224 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2225 norm == PAL ? "yuv420p" : "yuv411p", options);
2226 parse_option(o, "r", frame_rates[norm], options);
2228 parse_option(o, "ar", "48000", options);
2229 parse_option(o, "ac", "2", options);
2232 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2233 return AVERROR(EINVAL);
2238 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2240 av_free (vstats_filename);
2241 vstats_filename = av_strdup (arg);
2245 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2248 time_t today2 = time(NULL);
2249 struct tm *today = localtime(&today2);
2251 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2253 return opt_vstats_file(NULL, opt, filename);
2256 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2258 OptionsContext *o = optctx;
2259 return parse_option(o, "frames:v", arg, options);
2262 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2264 OptionsContext *o = optctx;
2265 return parse_option(o, "frames:a", arg, options);
2268 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2270 OptionsContext *o = optctx;
2271 return parse_option(o, "frames:d", arg, options);
2274 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2277 AVDictionary *cbak = codec_opts;
2278 AVDictionary *fbak = format_opts;
2282 ret = opt_default(NULL, opt, arg);
2284 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2285 av_dict_copy(&o->g->format_opts, format_opts, 0);
2286 av_dict_free(&codec_opts);
2287 av_dict_free(&format_opts);
2294 static int opt_preset(void *optctx, const char *opt, const char *arg)
2296 OptionsContext *o = optctx;
2298 char filename[1000], line[1000], tmp_line[1000];
2299 const char *codec_name = NULL;
2303 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2305 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2306 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2307 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2309 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2313 while (fgets(line, sizeof(line), f)) {
2314 char *key = tmp_line, *value, *endptr;
2316 if (strcspn(line, "#\n\r") == 0)
2318 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2319 if (!av_strtok(key, "=", &value) ||
2320 !av_strtok(value, "\r\n", &endptr)) {
2321 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2324 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2326 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2327 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2328 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2329 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2330 else if (opt_default_new(o, key, value) < 0) {
2331 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2332 filename, line, key, value);
2342 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2344 OptionsContext *o = optctx;
2345 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2346 int ret = parse_option(o, s, arg, options);
2351 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2353 OptionsContext *o = optctx;
2354 if(!strcmp(opt, "b")){
2355 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2356 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2359 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2363 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2365 OptionsContext *o = optctx;
2368 if(!strcmp(opt, "qscale")){
2369 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2370 return parse_option(o, "q:v", arg, options);
2372 s = av_asprintf("q%s", opt + 6);
2373 ret = parse_option(o, s, arg, options);
2378 static int opt_profile(void *optctx, const char *opt, const char *arg)
2380 OptionsContext *o = optctx;
2381 if(!strcmp(opt, "profile")){
2382 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2383 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2386 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2390 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2392 OptionsContext *o = optctx;
2393 return parse_option(o, "filter:v", arg, options);
2396 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2398 OptionsContext *o = optctx;
2399 return parse_option(o, "filter:a", arg, options);
2402 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2404 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2405 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2406 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2407 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2409 if (video_sync_method == VSYNC_AUTO)
2410 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2414 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2416 OptionsContext *o = optctx;
2417 char *tcr = av_asprintf("timecode=%s", arg);
2418 int ret = parse_option(o, "metadata:g", tcr, options);
2420 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2425 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2427 OptionsContext *o = optctx;
2428 char layout_str[32];
2431 int ret, channels, ac_str_size;
2434 layout = av_get_channel_layout(arg);
2436 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2437 return AVERROR(EINVAL);
2439 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2440 ret = opt_default_new(o, opt, layout_str);
2444 /* set 'ac' option based on channel layout */
2445 channels = av_get_channel_layout_nb_channels(layout);
2446 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2447 stream_str = strchr(opt, ':');
2448 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2449 ac_str = av_mallocz(ac_str_size);
2451 return AVERROR(ENOMEM);
2452 av_strlcpy(ac_str, "ac", 3);
2454 av_strlcat(ac_str, stream_str, ac_str_size);
2455 ret = parse_option(o, ac_str, layout_str, options);
2461 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2463 OptionsContext *o = optctx;
2464 return parse_option(o, "q:a", arg, options);
2467 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2469 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2470 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2471 return AVERROR(ENOMEM);
2472 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2473 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2474 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2475 return AVERROR(ENOMEM);
2479 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2481 uint8_t *graph_desc = read_file(arg);
2483 return AVERROR(EINVAL);
2485 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2486 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2487 return AVERROR(ENOMEM);
2488 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2489 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2493 void show_help_default(const char *opt, const char *arg)
2495 /* per-file options have at least one of those set */
2496 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2497 int show_advanced = 0, show_avoptions = 0;
2500 if (!strcmp(opt, "long"))
2502 else if (!strcmp(opt, "full"))
2503 show_advanced = show_avoptions = 1;
2505 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2510 printf("Getting help:\n"
2511 " -h -- print basic options\n"
2512 " -h long -- print more options\n"
2513 " -h full -- print all options (including all format and codec specific options, very long)\n"
2514 " See man %s for detailed description of the options.\n"
2515 "\n", program_name);
2517 show_help_options(options, "Print help / information / capabilities:",
2520 show_help_options(options, "Global options (affect whole program "
2521 "instead of just one file:",
2522 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2524 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2525 per_file | OPT_EXIT, 0);
2527 show_help_options(options, "Per-file main options:", 0,
2528 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2529 OPT_EXIT, per_file);
2531 show_help_options(options, "Advanced per-file options:",
2532 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2534 show_help_options(options, "Video options:",
2535 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2537 show_help_options(options, "Advanced Video options:",
2538 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2540 show_help_options(options, "Audio options:",
2541 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2543 show_help_options(options, "Advanced Audio options:",
2544 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2545 show_help_options(options, "Subtitle options:",
2546 OPT_SUBTITLE, 0, 0);
2549 if (show_avoptions) {
2550 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2551 show_help_children(avcodec_get_class(), flags);
2552 show_help_children(avformat_get_class(), flags);
2554 show_help_children(sws_get_class(), flags);
2556 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2557 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2561 void show_usage(void)
2563 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2564 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2565 av_log(NULL, AV_LOG_INFO, "\n");
2573 static const OptionGroupDef groups[] = {
2574 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2575 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2578 static int open_files(OptionGroupList *l, const char *inout,
2579 int (*open_file)(OptionsContext*, const char*))
2583 for (i = 0; i < l->nb_groups; i++) {
2584 OptionGroup *g = &l->groups[i];
2590 ret = parse_optgroup(&o, g);
2592 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2593 "%s.\n", inout, g->arg);
2597 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2598 ret = open_file(&o, g->arg);
2601 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2605 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2611 int ffmpeg_parse_options(int argc, char **argv)
2613 OptionParseContext octx;
2617 memset(&octx, 0, sizeof(octx));
2619 /* split the commandline into an internal representation */
2620 ret = split_commandline(&octx, argc, argv, options, groups,
2621 FF_ARRAY_ELEMS(groups));
2623 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2627 /* apply global options */
2628 ret = parse_optgroup(NULL, &octx.global_opts);
2630 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2634 /* open input files */
2635 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2637 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2641 /* open output files */
2642 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2644 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2649 uninit_parse_context(&octx);
2651 av_strerror(ret, error, sizeof(error));
2652 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2657 static int opt_progress(void *optctx, const char *opt, const char *arg)
2659 AVIOContext *avio = NULL;
2662 if (!strcmp(arg, "-"))
2664 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2666 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2667 arg, av_err2str(ret));
2670 progress_avio = avio;
2674 #define OFFSET(x) offsetof(OptionsContext, x)
2675 const OptionDef options[] = {
2677 #include "cmdutils_common_opts.h"
2678 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2679 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2680 "force format", "fmt" },
2681 { "y", OPT_BOOL, { &file_overwrite },
2682 "overwrite output files" },
2683 { "n", OPT_BOOL, { &no_file_overwrite },
2684 "never overwrite output files" },
2685 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2686 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2687 "codec name", "codec" },
2688 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2689 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2690 "codec name", "codec" },
2691 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2692 OPT_OUTPUT, { .off = OFFSET(presets) },
2693 "preset name", "preset" },
2694 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2695 OPT_OUTPUT, { .func_arg = opt_map },
2696 "set input stream mapping",
2697 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2698 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2699 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2700 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2701 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2702 "set metadata information of outfile from infile",
2703 "outfile[,metadata]:infile[,metadata]" },
2704 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2705 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2706 "set chapters mapping", "input_file_index" },
2707 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2708 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2709 "record or transcode \"duration\" seconds of audio/video",
2711 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2712 "record or transcode stop time", "time_stop" },
2713 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2714 "set the limit file size in bytes", "limit_size" },
2715 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2716 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2717 "set the start time offset", "time_off" },
2718 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2719 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2720 "enable/disable accurate seeking with -ss" },
2721 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2722 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2723 "set the input ts offset", "time_off" },
2724 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2725 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2726 "set the input ts scale", "scale" },
2727 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2728 "set the recording timestamp ('now' to set the current time)", "time" },
2729 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2730 "add metadata", "string=string" },
2731 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2732 OPT_OUTPUT, { .func_arg = opt_data_frames },
2733 "set the number of data frames to record", "number" },
2734 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2735 "add timings for benchmarking" },
2736 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2737 "add timings for each task" },
2738 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2739 "write program-readable progress information", "url" },
2740 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2741 "enable or disable interaction on standard input" },
2742 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2743 "set max runtime in seconds", "limit" },
2744 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2745 "dump each input packet" },
2746 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2747 "when dumping packets, also dump the payload" },
2748 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2749 OPT_INPUT, { .off = OFFSET(rate_emu) },
2750 "read input at native frame rate", "" },
2751 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2752 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2753 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2754 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2755 "video sync method", "" },
2756 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2757 "audio sync method", "" },
2758 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2759 "audio drift threshold", "threshold" },
2760 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2761 "copy timestamps" },
2762 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2763 "copy input stream time base when stream copying", "mode" },
2764 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2765 OPT_OUTPUT, { .off = OFFSET(shortest) },
2766 "finish encoding within shortest input" },
2767 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2768 OPT_OUTPUT, { .off = OFFSET(apad) },
2770 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2771 "timestamp discontinuity delta threshold", "threshold" },
2772 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2773 "timestamp error delta threshold", "threshold" },
2774 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2775 "exit on error", "error" },
2776 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2777 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2778 "copy initial non-keyframes" },
2779 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2780 "copy or discard frames before start time" },
2781 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2782 "set the number of frames to record", "number" },
2783 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2784 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2785 "force codec tag/fourcc", "fourcc/tag" },
2786 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2787 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2788 "use fixed quality scale (VBR)", "q" },
2789 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2790 OPT_OUTPUT, { .func_arg = opt_qscale },
2791 "use fixed quality scale (VBR)", "q" },
2792 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2793 "set profile", "profile" },
2794 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2795 "set stream filtergraph", "filter_graph" },
2796 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2797 "read stream filtergraph description from a file", "filename" },
2798 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2799 "reinit filtergraph on input parameter changes", "" },
2800 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2801 "create a complex filtergraph", "graph_description" },
2802 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2803 "create a complex filtergraph", "graph_description" },
2804 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2805 "read complex filtergraph description from a file", "filename" },
2806 { "stats", OPT_BOOL, { &print_stats },
2807 "print progress report during encoding", },
2808 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2809 OPT_OUTPUT, { .func_arg = opt_attach },
2810 "add an attachment to the output file", "filename" },
2811 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2812 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2813 "extract an attachment into a file", "filename" },
2814 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2815 "print timestamp debugging info" },
2816 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2817 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2820 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2821 "set the number of video frames to record", "number" },
2822 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2823 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2824 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2825 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2826 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2827 "set frame size (WxH or abbreviation)", "size" },
2828 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2829 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2830 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2831 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2832 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2833 "set pixel format", "format" },
2834 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2835 "set the number of bits per raw sample", "number" },
2836 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2837 "deprecated use -g 1" },
2838 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2840 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2841 "discard threshold", "n" },
2842 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2843 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2844 "rate control override for specific intervals", "override" },
2845 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2846 OPT_OUTPUT, { .func_arg = opt_video_codec },
2847 "force video codec ('copy' to copy stream)", "codec" },
2848 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2850 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2852 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2853 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2854 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2855 "select the pass number (1 to 3)", "n" },
2856 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2857 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2858 "select two pass log file name prefix", "prefix" },
2859 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2860 "this option is deprecated, use the yadif filter instead" },
2861 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2862 "calculate PSNR of compressed frames" },
2863 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2864 "dump video coding statistics to file" },
2865 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2866 "dump video coding statistics to file", "file" },
2867 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2868 "set video filters", "filter_graph" },
2869 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2870 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2871 "specify intra matrix coeffs", "matrix" },
2872 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2873 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2874 "specify inter matrix coeffs", "matrix" },
2875 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2876 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
2877 "specify intra matrix coeffs", "matrix" },
2878 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2879 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2880 "top=1/bottom=0/auto=-1 field first", "" },
2881 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2882 "intra_dc_precision", "precision" },
2883 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2884 OPT_OUTPUT, { .func_arg = opt_old2new },
2885 "force video tag/fourcc", "fourcc/tag" },
2886 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2887 "show QP histogram" },
2888 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2889 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2890 "force the selected framerate, disable the best supported framerate selection" },
2891 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2892 OPT_OUTPUT, { .func_arg = opt_streamid },
2893 "set the value of an outfile streamid", "streamIndex:value" },
2894 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2895 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2896 "force key frames at specified timestamps", "timestamps" },
2897 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2898 "video bitrate (please use -b:v)", "bitrate" },
2899 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2900 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2901 "use HW accelerated decoding", "hwaccel name" },
2902 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2903 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2904 "select a device for HW acceleration" "devicename" },
2907 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2908 "set the number of audio frames to record", "number" },
2909 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2910 "set audio quality (codec-specific)", "quality", },
2911 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2912 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2913 "set audio sampling rate (in Hz)", "rate" },
2914 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2915 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2916 "set number of audio channels", "channels" },
2917 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2919 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2920 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2921 "force audio codec ('copy' to copy stream)", "codec" },
2922 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2923 OPT_OUTPUT, { .func_arg = opt_old2new },
2924 "force audio tag/fourcc", "fourcc/tag" },
2925 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2926 "change audio volume (256=normal)" , "volume" },
2927 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2928 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2929 "set sample format", "format" },
2930 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2931 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2932 "set channel layout", "layout" },
2933 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2934 "set audio filters", "filter_graph" },
2935 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2936 "set the maximum number of channels to try to guess the channel layout" },
2938 /* subtitle options */
2939 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2940 "disable subtitle" },
2941 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2942 "force subtitle codec ('copy' to copy stream)", "codec" },
2943 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2944 , "force subtitle tag/fourcc", "fourcc/tag" },
2945 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2946 "fix subtitles duration" },
2947 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2948 "set canvas size (WxH or abbreviation)", "size" },
2951 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2952 "deprecated, use -channel", "channel" },
2953 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2954 "deprecated, use -standard", "standard" },
2955 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2958 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2959 "set the maximum demux-decode delay", "seconds" },
2960 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2961 "set the initial demux-decode delay", "seconds" },
2962 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
2963 "override the options from ffserver", "" },
2965 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2966 "A comma-separated list of bitstream filters", "bitstream_filters" },
2967 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2968 "deprecated", "audio bitstream_filters" },
2969 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2970 "deprecated", "video bitstream_filters" },
2972 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2973 "set the audio options to the indicated preset", "preset" },
2974 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2975 "set the video options to the indicated preset", "preset" },
2976 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2977 "set the subtitle options to the indicated preset", "preset" },
2978 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2979 "set options from indicated preset file", "filename" },
2980 /* data codec support */
2981 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2982 "force data codec ('copy' to copy stream)", "codec" },
2983 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },