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)
562 char *next, *codec_tag = NULL;
564 for (i = 0; i < ic->nb_streams; i++) {
565 AVStream *st = ic->streams[i];
566 AVCodecContext *dec = st->codec;
567 InputStream *ist = av_mallocz(sizeof(*ist));
568 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
573 GROW_ARRAY(input_streams, nb_input_streams);
574 input_streams[nb_input_streams - 1] = ist;
577 ist->file_index = nb_input_files;
579 st->discard = AVDISCARD_ALL;
582 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
584 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
586 uint32_t tag = strtol(codec_tag, &next, 0);
588 tag = AV_RL32(codec_tag);
589 st->codec->codec_tag = tag;
592 ist->dec = choose_decoder(o, ic, st);
593 ist->opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
595 ist->reinit_filters = -1;
596 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
598 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
600 switch (dec->codec_type) {
601 case AVMEDIA_TYPE_VIDEO:
603 ist->dec = avcodec_find_decoder(dec->codec_id);
604 if (av_codec_get_lowres(dec)) {
605 dec->flags |= CODEC_FLAG_EMU_EDGE;
608 ist->resample_height = dec->height;
609 ist->resample_width = dec->width;
610 ist->resample_pix_fmt = dec->pix_fmt;
612 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
613 if (framerate && av_parse_video_rate(&ist->framerate,
615 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
620 ist->top_field_first = -1;
621 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
623 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
625 if (!strcmp(hwaccel, "none"))
626 ist->hwaccel_id = HWACCEL_NONE;
627 else if (!strcmp(hwaccel, "auto"))
628 ist->hwaccel_id = HWACCEL_AUTO;
631 for (i = 0; hwaccels[i].name; i++) {
632 if (!strcmp(hwaccels[i].name, hwaccel)) {
633 ist->hwaccel_id = hwaccels[i].id;
638 if (!ist->hwaccel_id) {
639 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
641 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
642 for (i = 0; hwaccels[i].name; i++)
643 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
644 av_log(NULL, AV_LOG_FATAL, "\n");
650 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
651 if (hwaccel_device) {
652 ist->hwaccel_device = av_strdup(hwaccel_device);
653 if (!ist->hwaccel_device)
656 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
659 case AVMEDIA_TYPE_AUDIO:
660 ist->guess_layout_max = INT_MAX;
661 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
662 guess_input_channel_layout(ist);
664 ist->resample_sample_fmt = dec->sample_fmt;
665 ist->resample_sample_rate = dec->sample_rate;
666 ist->resample_channels = dec->channels;
667 ist->resample_channel_layout = dec->channel_layout;
670 case AVMEDIA_TYPE_DATA:
671 case AVMEDIA_TYPE_SUBTITLE: {
672 char *canvas_size = NULL;
674 ist->dec = avcodec_find_decoder(dec->codec_id);
675 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
676 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
678 av_parse_video_size(&dec->width, &dec->height, canvas_size) < 0) {
679 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
684 case AVMEDIA_TYPE_ATTACHMENT:
685 case AVMEDIA_TYPE_UNKNOWN:
693 static void assert_file_overwrite(const char *filename)
695 if (file_overwrite && no_file_overwrite) {
696 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
700 if (!file_overwrite &&
701 (strchr(filename, ':') == NULL || filename[1] == ':' ||
702 av_strstart(filename, "file:", NULL))) {
703 if (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; 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;
1272 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1273 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1274 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1278 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1279 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1280 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1281 ost->keep_pix_fmt = 1;
1282 if (!*++frame_pix_fmt)
1283 frame_pix_fmt = NULL;
1285 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1286 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1289 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1292 video_enc->gop_size = 0;
1293 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1295 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1296 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1299 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1301 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1303 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1304 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1307 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1310 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1311 for (i = 0; p; i++) {
1313 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1315 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1318 /* FIXME realloc failure */
1319 video_enc->rc_override =
1320 av_realloc(video_enc->rc_override,
1321 sizeof(RcOverride) * (i + 1));
1322 video_enc->rc_override[i].start_frame = start;
1323 video_enc->rc_override[i].end_frame = end;
1325 video_enc->rc_override[i].qscale = q;
1326 video_enc->rc_override[i].quality_factor = 1.0;
1329 video_enc->rc_override[i].qscale = 0;
1330 video_enc->rc_override[i].quality_factor = -q/100.0;
1335 video_enc->rc_override_count = i;
1336 video_enc->intra_dc_precision = intra_dc_precision - 8;
1339 video_enc->flags|= CODEC_FLAG_PSNR;
1342 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1345 video_enc->flags |= CODEC_FLAG_PASS1;
1346 av_dict_set(&ost->opts, "flags", "+pass1", AV_DICT_APPEND);
1349 video_enc->flags |= CODEC_FLAG_PASS2;
1350 av_dict_set(&ost->opts, "flags", "+pass2", AV_DICT_APPEND);
1354 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1355 if (ost->logfile_prefix &&
1356 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1359 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1360 if (ost->forced_keyframes)
1361 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1363 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1365 ost->top_field_first = -1;
1366 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1369 ost->avfilter = get_ost_filters(o, oc, ost);
1373 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1376 if (ost->stream_copy)
1377 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1382 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1387 AVCodecContext *audio_enc;
1389 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1392 audio_enc = st->codec;
1393 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1395 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1396 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1398 if (!ost->stream_copy) {
1399 char *sample_fmt = NULL;
1401 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1403 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1405 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1406 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1410 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1412 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1413 ost->apad = av_strdup(ost->apad);
1415 ost->avfilter = get_ost_filters(o, oc, ost);
1419 /* check for channel mapping for this audio stream */
1420 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1421 AudioChannelMap *map = &o->audio_channel_maps[n];
1422 InputStream *ist = input_streams[ost->source_index];
1423 if ((map->channel_idx == -1 || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) &&
1424 (map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1425 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1426 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1427 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1429 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1430 ost->file_index, ost->st->index);
1435 if (ost->stream_copy)
1436 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1441 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1445 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1446 if (!ost->stream_copy) {
1447 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1454 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1456 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1457 ost->stream_copy = 1;
1462 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1466 AVCodecContext *subtitle_enc;
1468 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1470 subtitle_enc = st->codec;
1472 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1474 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1476 if (!ost->stream_copy) {
1477 char *frame_size = NULL;
1479 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1480 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1481 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1489 /* arg format is "output-stream-index:streamid-value". */
1490 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1492 OptionsContext *o = optctx;
1497 av_strlcpy(idx_str, arg, sizeof(idx_str));
1498 p = strchr(idx_str, ':');
1500 av_log(NULL, AV_LOG_FATAL,
1501 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1506 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1507 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1508 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1512 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1514 AVFormatContext *is = ifile->ctx;
1515 AVFormatContext *os = ofile->ctx;
1519 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1521 return AVERROR(ENOMEM);
1524 for (i = 0; i < is->nb_chapters; i++) {
1525 AVChapter *in_ch = is->chapters[i], *out_ch;
1526 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1527 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1528 AV_TIME_BASE_Q, in_ch->time_base);
1529 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1530 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1533 if (in_ch->end < ts_off)
1535 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1538 out_ch = av_mallocz(sizeof(AVChapter));
1540 return AVERROR(ENOMEM);
1542 out_ch->id = in_ch->id;
1543 out_ch->time_base = in_ch->time_base;
1544 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1545 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1548 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1550 os->chapters[os->nb_chapters++] = out_ch;
1555 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1558 AVFormatContext *ic = avformat_alloc_context();
1560 ic->interrupt_callback = int_cb;
1561 err = avformat_open_input(&ic, filename, NULL, NULL);
1564 /* copy stream format */
1565 for(i=0;i<ic->nb_streams;i++) {
1569 AVCodecContext *avctx;
1571 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1572 ost = new_output_stream(o, s, codec->type, -1);
1577 // FIXME: a more elegant solution is needed
1578 memcpy(st, ic->streams[i], sizeof(AVStream));
1580 st->info = av_malloc(sizeof(*st->info));
1581 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1583 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1585 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1586 choose_sample_fmt(st, codec);
1587 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1588 choose_pixel_fmt(st, codec, st->codec->pix_fmt);
1591 avformat_close_input(&ic);
1595 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1596 AVFormatContext *oc)
1600 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1601 ofilter->out_tmp->pad_idx)) {
1602 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1603 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1605 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1610 ost->source_index = -1;
1611 ost->filter = ofilter;
1615 if (ost->stream_copy) {
1616 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1617 "which is fed from a complex filtergraph. Filtering and streamcopy "
1618 "cannot be used together.\n", ost->file_index, ost->index);
1622 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1623 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1624 av_log(NULL, AV_LOG_ERROR,
1625 "%s '%s' was specified through the %s option "
1626 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1627 "%s and -filter_complex cannot be used together for the same stream.\n",
1628 ost->filters ? "Filtergraph" : "Filtergraph script",
1629 ost->filters ? ost->filters : ost->filters_script,
1630 opt, ost->file_index, ost->index, opt);
1634 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1635 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1638 avfilter_inout_free(&ofilter->out_tmp);
1641 static int configure_complex_filters(void)
1645 for (i = 0; i < nb_filtergraphs; i++)
1646 if (!filtergraphs[i]->graph &&
1647 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1652 static int open_output_file(OptionsContext *o, const char *filename)
1654 AVFormatContext *oc;
1656 AVOutputFormat *file_oformat;
1660 AVDictionary *unused_opts = NULL;
1661 AVDictionaryEntry *e = NULL;
1663 if (configure_complex_filters() < 0) {
1664 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1668 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1669 o->stop_time = INT64_MAX;
1670 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1673 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1674 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1675 if (o->stop_time <= start_time) {
1676 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1677 o->stop_time = INT64_MAX;
1679 o->recording_time = o->stop_time - start_time;
1683 GROW_ARRAY(output_files, nb_output_files);
1684 of = av_mallocz(sizeof(*of));
1687 output_files[nb_output_files - 1] = of;
1689 of->ost_index = nb_output_streams;
1690 of->recording_time = o->recording_time;
1691 of->start_time = o->start_time;
1692 of->limit_filesize = o->limit_filesize;
1693 of->shortest = o->shortest;
1694 av_dict_copy(&of->opts, o->g->format_opts, 0);
1696 if (!strcmp(filename, "-"))
1699 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1701 print_error(filename, err);
1706 if (o->recording_time != INT64_MAX)
1707 oc->duration = o->recording_time;
1709 file_oformat= oc->oformat;
1710 oc->interrupt_callback = int_cb;
1712 /* create streams for all unlabeled output pads */
1713 for (i = 0; i < nb_filtergraphs; i++) {
1714 FilterGraph *fg = filtergraphs[i];
1715 for (j = 0; j < fg->nb_outputs; j++) {
1716 OutputFilter *ofilter = fg->outputs[j];
1718 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1721 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1722 ofilter->out_tmp->pad_idx)) {
1723 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1724 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1725 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1727 init_output_filter(ofilter, o, oc);
1731 /* ffserver seeking with date=... needs a date reference */
1732 if (!strcmp(file_oformat->name, "ffm") &&
1733 av_strstart(filename, "http:", NULL)) {
1734 int err = parse_option(o, "metadata", "creation_time=now", options);
1736 print_error(filename, err);
1741 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1742 av_strstart(filename, "http:", NULL)) {
1744 /* special case for files sent to ffserver: we get the stream
1745 parameters from ffserver */
1746 int err = read_ffserver_streams(o, oc, filename);
1748 print_error(filename, err);
1751 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1752 ost = output_streams[j];
1753 for (i = 0; i < nb_input_streams; i++) {
1754 ist = input_streams[i];
1755 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1757 ost->source_index= i;
1758 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1759 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1761 ist->st->discard = AVDISCARD_NONE;
1766 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));
1770 } else if (!o->nb_stream_maps) {
1771 char *subtitle_codec_name = NULL;
1772 /* pick the "best" stream of each type */
1774 /* video: highest resolution */
1775 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1776 int area = 0, idx = -1;
1777 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1778 for (i = 0; i < nb_input_streams; i++) {
1780 ist = input_streams[i];
1781 new_area = ist->st->codec->width * ist->st->codec->height;
1782 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1784 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1786 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1793 new_video_stream(o, oc, idx);
1796 /* audio: most channels */
1797 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1798 int channels = 0, idx = -1;
1799 for (i = 0; i < nb_input_streams; i++) {
1800 ist = input_streams[i];
1801 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1802 ist->st->codec->channels > channels) {
1803 channels = ist->st->codec->channels;
1808 new_audio_stream(o, oc, idx);
1811 /* subtitles: pick first */
1812 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1813 if (!o->subtitle_disable && (oc->oformat->subtitle_codec != AV_CODEC_ID_NONE || subtitle_codec_name)) {
1814 for (i = 0; i < nb_input_streams; i++)
1815 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1816 new_subtitle_stream(o, oc, i);
1820 /* do something with data? */
1822 for (i = 0; i < o->nb_stream_maps; i++) {
1823 StreamMap *map = &o->stream_maps[i];
1828 if (map->linklabel) {
1830 OutputFilter *ofilter = NULL;
1833 for (j = 0; j < nb_filtergraphs; j++) {
1834 fg = filtergraphs[j];
1835 for (k = 0; k < fg->nb_outputs; k++) {
1836 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1837 if (out && !strcmp(out->name, map->linklabel)) {
1838 ofilter = fg->outputs[k];
1845 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1846 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1849 init_output_filter(ofilter, o, oc);
1851 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1853 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1854 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1856 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1858 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1860 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1863 switch (ist->st->codec->codec_type) {
1864 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1865 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1866 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1867 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1868 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1870 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1871 map->file_index, map->stream_index);
1878 /* handle attached files */
1879 for (i = 0; i < o->nb_attachments; i++) {
1881 uint8_t *attachment;
1885 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1886 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1890 if ((len = avio_size(pb)) <= 0) {
1891 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1895 if (!(attachment = av_malloc(len))) {
1896 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1900 avio_read(pb, attachment, len);
1902 ost = new_attachment_stream(o, oc, -1);
1903 ost->stream_copy = 0;
1904 ost->attachment_filename = o->attachments[i];
1906 ost->st->codec->extradata = attachment;
1907 ost->st->codec->extradata_size = len;
1909 p = strrchr(o->attachments[i], '/');
1910 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1914 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1915 AVDictionaryEntry *e;
1916 ost = output_streams[i];
1918 if ((ost->stream_copy || ost->attachment_filename)
1919 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1920 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1921 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1925 /* check if all codec options have been used */
1926 unused_opts = strip_specifiers(o->g->codec_opts);
1927 for (i = of->ost_index; i < nb_output_streams; i++) {
1929 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1930 AV_DICT_IGNORE_SUFFIX)))
1931 av_dict_set(&unused_opts, e->key, NULL, 0);
1935 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1936 const AVClass *class = avcodec_get_class();
1937 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1938 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1941 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1942 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1943 "output file #%d (%s) is not an encoding option.\n", e->key,
1944 option->help ? option->help : "", nb_output_files - 1,
1949 // gop_timecode is injected by generic code but not always used
1950 if (!strcmp(e->key, "gop_timecode"))
1953 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1954 "output file #%d (%s) has not been used for any stream. The most "
1955 "likely reason is either wrong type (e.g. a video option with "
1956 "no video streams) or that it is a private option of some encoder "
1957 "which was not actually used for any stream.\n", e->key,
1958 option->help ? option->help : "", nb_output_files - 1, filename);
1960 av_dict_free(&unused_opts);
1962 /* check filename in case of an image number is expected */
1963 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1964 if (!av_filename_number_test(oc->filename)) {
1965 print_error(oc->filename, AVERROR(EINVAL));
1970 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1971 /* test if it already exists to avoid losing precious files */
1972 assert_file_overwrite(filename);
1975 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1976 &oc->interrupt_callback,
1978 print_error(filename, err);
1981 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
1982 assert_file_overwrite(filename);
1984 if (o->mux_preload) {
1986 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1987 av_dict_set(&of->opts, "preload", buf, 0);
1989 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1992 for (i = 0; i < o->nb_metadata_map; i++) {
1994 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1996 if (in_file_index >= nb_input_files) {
1997 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2000 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2001 in_file_index >= 0 ?
2002 input_files[in_file_index]->ctx : NULL, o);
2006 if (o->chapters_input_file >= nb_input_files) {
2007 if (o->chapters_input_file == INT_MAX) {
2008 /* copy chapters from the first input file that has them*/
2009 o->chapters_input_file = -1;
2010 for (i = 0; i < nb_input_files; i++)
2011 if (input_files[i]->ctx->nb_chapters) {
2012 o->chapters_input_file = i;
2016 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2017 o->chapters_input_file);
2021 if (o->chapters_input_file >= 0)
2022 copy_chapters(input_files[o->chapters_input_file], of,
2023 !o->metadata_chapters_manual);
2025 /* copy global metadata by default */
2026 if (!o->metadata_global_manual && nb_input_files){
2027 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2028 AV_DICT_DONT_OVERWRITE);
2029 if(o->recording_time != INT64_MAX)
2030 av_dict_set(&oc->metadata, "duration", NULL, 0);
2031 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2033 if (!o->metadata_streams_manual)
2034 for (i = of->ost_index; i < nb_output_streams; i++) {
2036 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2038 ist = input_streams[output_streams[i]->source_index];
2039 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2042 /* process manually set metadata */
2043 for (i = 0; i < o->nb_metadata; i++) {
2046 const char *stream_spec;
2047 int index = 0, j, ret = 0;
2049 val = strchr(o->metadata[i].u.str, '=');
2051 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2052 o->metadata[i].u.str);
2057 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2059 for (j = 0; j < oc->nb_streams; j++) {
2060 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2061 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2072 if (index < 0 || index >= oc->nb_chapters) {
2073 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2076 m = &oc->chapters[index]->metadata;
2079 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2082 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2089 static int opt_target(void *optctx, const char *opt, const char *arg)
2091 OptionsContext *o = optctx;
2092 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2093 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2095 if (!strncmp(arg, "pal-", 4)) {
2098 } else if (!strncmp(arg, "ntsc-", 5)) {
2101 } else if (!strncmp(arg, "film-", 5)) {
2105 /* Try to determine PAL/NTSC by peeking in the input files */
2106 if (nb_input_files) {
2108 for (j = 0; j < nb_input_files; j++) {
2109 for (i = 0; i < input_files[j]->nb_streams; i++) {
2110 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2111 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2113 fr = c->time_base.den * 1000 / c->time_base.num;
2117 } else if ((fr == 29970) || (fr == 23976)) {
2122 if (norm != UNKNOWN)
2126 if (norm != UNKNOWN)
2127 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2130 if (norm == UNKNOWN) {
2131 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2132 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2133 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2137 if (!strcmp(arg, "vcd")) {
2138 opt_video_codec(o, "c:v", "mpeg1video");
2139 opt_audio_codec(o, "c:a", "mp2");
2140 parse_option(o, "f", "vcd", options);
2142 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2143 parse_option(o, "r", frame_rates[norm], options);
2144 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2146 av_dict_set(&o->g->codec_opts, "b:v", "1150000", AV_DICT_DONT_OVERWRITE);
2147 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", AV_DICT_DONT_OVERWRITE);
2148 av_dict_set(&o->g->codec_opts, "minrate", "1150000", AV_DICT_DONT_OVERWRITE);
2149 av_dict_set(&o->g->codec_opts, "bufsize", "327680", AV_DICT_DONT_OVERWRITE); // 40*1024*8;
2151 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2152 parse_option(o, "ar", "44100", options);
2153 parse_option(o, "ac", "2", options);
2155 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2156 av_dict_set(&o->g->format_opts, "muxrate", "1411200", AV_DICT_DONT_OVERWRITE); // 2352 * 75 * 8;
2158 /* We have to offset the PTS, so that it is consistent with the SCR.
2159 SCR starts at 36000, but the first two packs contain only padding
2160 and the first pack from the other stream, respectively, may also have
2161 been written before.
2162 So the real data starts at SCR 36000+3*1200. */
2163 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2164 } else if (!strcmp(arg, "svcd")) {
2166 opt_video_codec(o, "c:v", "mpeg2video");
2167 opt_audio_codec(o, "c:a", "mp2");
2168 parse_option(o, "f", "svcd", options);
2170 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2171 parse_option(o, "r", frame_rates[norm], options);
2172 parse_option(o, "pix_fmt", "yuv420p", options);
2173 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2175 av_dict_set(&o->g->codec_opts, "b:v", "2040000", AV_DICT_DONT_OVERWRITE);
2176 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", AV_DICT_DONT_OVERWRITE);
2177 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1145000;
2178 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2179 av_dict_set(&o->g->codec_opts, "scan_offset", "1", AV_DICT_DONT_OVERWRITE);
2181 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2182 parse_option(o, "ar", "44100", options);
2184 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2186 } else if (!strcmp(arg, "dvd")) {
2188 opt_video_codec(o, "c:v", "mpeg2video");
2189 opt_audio_codec(o, "c:a", "ac3");
2190 parse_option(o, "f", "dvd", options);
2192 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2193 parse_option(o, "r", frame_rates[norm], options);
2194 parse_option(o, "pix_fmt", "yuv420p", options);
2195 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2197 av_dict_set(&o->g->codec_opts, "b:v", "6000000", AV_DICT_DONT_OVERWRITE);
2198 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", AV_DICT_DONT_OVERWRITE);
2199 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1500000;
2200 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2202 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.
2203 av_dict_set(&o->g->format_opts, "muxrate", "10080000", AV_DICT_DONT_OVERWRITE); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2205 av_dict_set(&o->g->codec_opts, "b:a", "448000", AV_DICT_DONT_OVERWRITE);
2206 parse_option(o, "ar", "48000", options);
2208 } else if (!strncmp(arg, "dv", 2)) {
2210 parse_option(o, "f", "dv", options);
2212 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2213 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2214 norm == PAL ? "yuv420p" : "yuv411p", options);
2215 parse_option(o, "r", frame_rates[norm], options);
2217 parse_option(o, "ar", "48000", options);
2218 parse_option(o, "ac", "2", options);
2221 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2222 return AVERROR(EINVAL);
2227 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2229 av_free (vstats_filename);
2230 vstats_filename = av_strdup (arg);
2234 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2237 time_t today2 = time(NULL);
2238 struct tm *today = localtime(&today2);
2240 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2242 return opt_vstats_file(NULL, opt, filename);
2245 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2247 OptionsContext *o = optctx;
2248 return parse_option(o, "frames:v", arg, options);
2251 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2253 OptionsContext *o = optctx;
2254 return parse_option(o, "frames:a", arg, options);
2257 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2259 OptionsContext *o = optctx;
2260 return parse_option(o, "frames:d", arg, options);
2263 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2266 AVDictionary *cbak = codec_opts;
2267 AVDictionary *fbak = format_opts;
2271 ret = opt_default(NULL, opt, arg);
2273 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2274 av_dict_copy(&o->g->format_opts, format_opts, 0);
2275 av_dict_free(&codec_opts);
2276 av_dict_free(&format_opts);
2283 static int opt_preset(void *optctx, const char *opt, const char *arg)
2285 OptionsContext *o = optctx;
2287 char filename[1000], line[1000], tmp_line[1000];
2288 const char *codec_name = NULL;
2292 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2294 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2295 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2296 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2298 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2302 while (fgets(line, sizeof(line), f)) {
2303 char *key = tmp_line, *value, *endptr;
2305 if (strcspn(line, "#\n\r") == 0)
2307 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2308 if (!av_strtok(key, "=", &value) ||
2309 !av_strtok(value, "\r\n", &endptr)) {
2310 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2313 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2315 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2316 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2317 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2318 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2319 else if (opt_default_new(o, key, value) < 0) {
2320 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2321 filename, line, key, value);
2331 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2333 OptionsContext *o = optctx;
2334 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2335 int ret = parse_option(o, s, arg, options);
2340 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2342 OptionsContext *o = optctx;
2343 if(!strcmp(opt, "b")){
2344 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2345 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2348 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2352 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2354 OptionsContext *o = optctx;
2357 if(!strcmp(opt, "qscale")){
2358 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2359 return parse_option(o, "q:v", arg, options);
2361 s = av_asprintf("q%s", opt + 6);
2362 ret = parse_option(o, s, arg, options);
2367 static int opt_profile(void *optctx, const char *opt, const char *arg)
2369 OptionsContext *o = optctx;
2370 if(!strcmp(opt, "profile")){
2371 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2372 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2375 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2379 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2381 OptionsContext *o = optctx;
2382 return parse_option(o, "filter:v", arg, options);
2385 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2387 OptionsContext *o = optctx;
2388 return parse_option(o, "filter:a", arg, options);
2391 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2393 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2394 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2395 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2396 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2398 if (video_sync_method == VSYNC_AUTO)
2399 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2403 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2405 OptionsContext *o = optctx;
2406 char *tcr = av_asprintf("timecode=%s", arg);
2407 int ret = parse_option(o, "metadata:g", tcr, options);
2409 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2414 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2416 OptionsContext *o = optctx;
2417 char layout_str[32];
2420 int ret, channels, ac_str_size;
2423 layout = av_get_channel_layout(arg);
2425 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2426 return AVERROR(EINVAL);
2428 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2429 ret = opt_default_new(o, opt, layout_str);
2433 /* set 'ac' option based on channel layout */
2434 channels = av_get_channel_layout_nb_channels(layout);
2435 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2436 stream_str = strchr(opt, ':');
2437 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2438 ac_str = av_mallocz(ac_str_size);
2440 return AVERROR(ENOMEM);
2441 av_strlcpy(ac_str, "ac", 3);
2443 av_strlcat(ac_str, stream_str, ac_str_size);
2444 ret = parse_option(o, ac_str, layout_str, options);
2450 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2452 OptionsContext *o = optctx;
2453 return parse_option(o, "q:a", arg, options);
2456 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2458 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2459 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2460 return AVERROR(ENOMEM);
2461 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2462 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2463 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2464 return AVERROR(ENOMEM);
2468 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2470 uint8_t *graph_desc = read_file(arg);
2472 return AVERROR(EINVAL);
2474 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2475 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2476 return AVERROR(ENOMEM);
2477 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2478 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2482 void show_help_default(const char *opt, const char *arg)
2484 /* per-file options have at least one of those set */
2485 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2486 int show_advanced = 0, show_avoptions = 0;
2489 if (!strcmp(opt, "long"))
2491 else if (!strcmp(opt, "full"))
2492 show_advanced = show_avoptions = 1;
2494 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2499 printf("Getting help:\n"
2500 " -h -- print basic options\n"
2501 " -h long -- print more options\n"
2502 " -h full -- print all options (including all format and codec specific options, very long)\n"
2503 " See man %s for detailed description of the options.\n"
2504 "\n", program_name);
2506 show_help_options(options, "Print help / information / capabilities:",
2509 show_help_options(options, "Global options (affect whole program "
2510 "instead of just one file:",
2511 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2513 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2514 per_file | OPT_EXIT, 0);
2516 show_help_options(options, "Per-file main options:", 0,
2517 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2518 OPT_EXIT, per_file);
2520 show_help_options(options, "Advanced per-file options:",
2521 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2523 show_help_options(options, "Video options:",
2524 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2526 show_help_options(options, "Advanced Video options:",
2527 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2529 show_help_options(options, "Audio options:",
2530 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2532 show_help_options(options, "Advanced Audio options:",
2533 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2534 show_help_options(options, "Subtitle options:",
2535 OPT_SUBTITLE, 0, 0);
2538 if (show_avoptions) {
2539 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2540 show_help_children(avcodec_get_class(), flags);
2541 show_help_children(avformat_get_class(), flags);
2543 show_help_children(sws_get_class(), flags);
2545 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2546 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2550 void show_usage(void)
2552 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2553 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2554 av_log(NULL, AV_LOG_INFO, "\n");
2562 static const OptionGroupDef groups[] = {
2563 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2564 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2567 static int open_files(OptionGroupList *l, const char *inout,
2568 int (*open_file)(OptionsContext*, const char*))
2572 for (i = 0; i < l->nb_groups; i++) {
2573 OptionGroup *g = &l->groups[i];
2579 ret = parse_optgroup(&o, g);
2581 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2582 "%s.\n", inout, g->arg);
2586 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2587 ret = open_file(&o, g->arg);
2590 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2594 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2600 int ffmpeg_parse_options(int argc, char **argv)
2602 OptionParseContext octx;
2606 memset(&octx, 0, sizeof(octx));
2608 /* split the commandline into an internal representation */
2609 ret = split_commandline(&octx, argc, argv, options, groups,
2610 FF_ARRAY_ELEMS(groups));
2612 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2616 /* apply global options */
2617 ret = parse_optgroup(NULL, &octx.global_opts);
2619 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2623 /* open input files */
2624 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2626 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2630 /* open output files */
2631 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2633 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2638 uninit_parse_context(&octx);
2640 av_strerror(ret, error, sizeof(error));
2641 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2646 static int opt_progress(void *optctx, const char *opt, const char *arg)
2648 AVIOContext *avio = NULL;
2651 if (!strcmp(arg, "-"))
2653 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2655 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2656 arg, av_err2str(ret));
2659 progress_avio = avio;
2663 #define OFFSET(x) offsetof(OptionsContext, x)
2664 const OptionDef options[] = {
2666 #include "cmdutils_common_opts.h"
2667 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2668 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2669 "force format", "fmt" },
2670 { "y", OPT_BOOL, { &file_overwrite },
2671 "overwrite output files" },
2672 { "n", OPT_BOOL, { &no_file_overwrite },
2673 "never overwrite output files" },
2674 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2675 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2676 "codec name", "codec" },
2677 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2678 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2679 "codec name", "codec" },
2680 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2681 OPT_OUTPUT, { .off = OFFSET(presets) },
2682 "preset name", "preset" },
2683 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2684 OPT_OUTPUT, { .func_arg = opt_map },
2685 "set input stream mapping",
2686 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2687 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2688 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2689 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2690 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2691 "set metadata information of outfile from infile",
2692 "outfile[,metadata]:infile[,metadata]" },
2693 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2694 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2695 "set chapters mapping", "input_file_index" },
2696 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2697 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2698 "record or transcode \"duration\" seconds of audio/video",
2700 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2701 "record or transcode stop time", "time_stop" },
2702 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2703 "set the limit file size in bytes", "limit_size" },
2704 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2705 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2706 "set the start time offset", "time_off" },
2707 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2708 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2709 "enable/disable accurate seeking with -ss" },
2710 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2711 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2712 "set the input ts offset", "time_off" },
2713 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2714 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2715 "set the input ts scale", "scale" },
2716 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2717 "set the recording timestamp ('now' to set the current time)", "time" },
2718 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2719 "add metadata", "string=string" },
2720 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2721 OPT_OUTPUT, { .func_arg = opt_data_frames },
2722 "set the number of data frames to record", "number" },
2723 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2724 "add timings for benchmarking" },
2725 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2726 "add timings for each task" },
2727 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2728 "write program-readable progress information", "url" },
2729 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2730 "enable or disable interaction on standard input" },
2731 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2732 "set max runtime in seconds", "limit" },
2733 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2734 "dump each input packet" },
2735 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2736 "when dumping packets, also dump the payload" },
2737 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2738 OPT_INPUT, { .off = OFFSET(rate_emu) },
2739 "read input at native frame rate", "" },
2740 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2741 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2742 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2743 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2744 "video sync method", "" },
2745 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2746 "audio sync method", "" },
2747 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2748 "audio drift threshold", "threshold" },
2749 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2750 "copy timestamps" },
2751 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2752 "copy input stream time base when stream copying", "mode" },
2753 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2754 OPT_OUTPUT, { .off = OFFSET(shortest) },
2755 "finish encoding within shortest input" },
2756 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2757 OPT_OUTPUT, { .off = OFFSET(apad) },
2759 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2760 "timestamp discontinuity delta threshold", "threshold" },
2761 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2762 "timestamp error delta threshold", "threshold" },
2763 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2764 "exit on error", "error" },
2765 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2766 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2767 "copy initial non-keyframes" },
2768 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2769 "copy or discard frames before start time" },
2770 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2771 "set the number of frames to record", "number" },
2772 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2773 OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(codec_tags) },
2774 "force codec tag/fourcc", "fourcc/tag" },
2775 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2776 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2777 "use fixed quality scale (VBR)", "q" },
2778 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2779 OPT_OUTPUT, { .func_arg = opt_qscale },
2780 "use fixed quality scale (VBR)", "q" },
2781 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2782 "set profile", "profile" },
2783 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2784 "set stream filtergraph", "filter_graph" },
2785 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2786 "read stream filtergraph description from a file", "filename" },
2787 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2788 "reinit filtergraph on input parameter changes", "" },
2789 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2790 "create a complex filtergraph", "graph_description" },
2791 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2792 "create a complex filtergraph", "graph_description" },
2793 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2794 "read complex filtergraph description from a file", "filename" },
2795 { "stats", OPT_BOOL, { &print_stats },
2796 "print progress report during encoding", },
2797 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2798 OPT_OUTPUT, { .func_arg = opt_attach },
2799 "add an attachment to the output file", "filename" },
2800 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2801 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2802 "extract an attachment into a file", "filename" },
2803 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2804 "print timestamp debugging info" },
2805 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2806 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2809 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2810 "set the number of video frames to record", "number" },
2811 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2812 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2813 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2814 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2815 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2816 "set frame size (WxH or abbreviation)", "size" },
2817 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2818 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2819 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2820 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2821 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2822 "set pixel format", "format" },
2823 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2824 "set the number of bits per raw sample", "number" },
2825 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2826 "deprecated use -g 1" },
2827 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2829 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2830 "discard threshold", "n" },
2831 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2832 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2833 "rate control override for specific intervals", "override" },
2834 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2835 OPT_OUTPUT, { .func_arg = opt_video_codec },
2836 "force video codec ('copy' to copy stream)", "codec" },
2837 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2839 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2841 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2842 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2843 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2844 "select the pass number (1 to 3)", "n" },
2845 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2846 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2847 "select two pass log file name prefix", "prefix" },
2848 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2849 "this option is deprecated, use the yadif filter instead" },
2850 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2851 "calculate PSNR of compressed frames" },
2852 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2853 "dump video coding statistics to file" },
2854 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2855 "dump video coding statistics to file", "file" },
2856 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2857 "set video filters", "filter_graph" },
2858 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2859 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2860 "specify intra matrix coeffs", "matrix" },
2861 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2862 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2863 "specify inter matrix coeffs", "matrix" },
2864 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2865 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2866 "top=1/bottom=0/auto=-1 field first", "" },
2867 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2868 "intra_dc_precision", "precision" },
2869 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2870 OPT_OUTPUT, { .func_arg = opt_old2new },
2871 "force video tag/fourcc", "fourcc/tag" },
2872 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2873 "show QP histogram" },
2874 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2875 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2876 "force the selected framerate, disable the best supported framerate selection" },
2877 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2878 OPT_OUTPUT, { .func_arg = opt_streamid },
2879 "set the value of an outfile streamid", "streamIndex:value" },
2880 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2881 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2882 "force key frames at specified timestamps", "timestamps" },
2883 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2884 "video bitrate (please use -b:v)", "bitrate" },
2885 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2886 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2887 "use HW accelerated decoding", "hwaccel name" },
2888 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2889 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2890 "select a device for HW acceleration" "devicename" },
2893 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2894 "set the number of audio frames to record", "number" },
2895 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2896 "set audio quality (codec-specific)", "quality", },
2897 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2898 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2899 "set audio sampling rate (in Hz)", "rate" },
2900 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2901 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2902 "set number of audio channels", "channels" },
2903 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2905 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2906 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2907 "force audio codec ('copy' to copy stream)", "codec" },
2908 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2909 OPT_OUTPUT, { .func_arg = opt_old2new },
2910 "force audio tag/fourcc", "fourcc/tag" },
2911 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2912 "change audio volume (256=normal)" , "volume" },
2913 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2914 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2915 "set sample format", "format" },
2916 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2917 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2918 "set channel layout", "layout" },
2919 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2920 "set audio filters", "filter_graph" },
2921 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2922 "set the maximum number of channels to try to guess the channel layout" },
2924 /* subtitle options */
2925 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2926 "disable subtitle" },
2927 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2928 "force subtitle codec ('copy' to copy stream)", "codec" },
2929 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2930 , "force subtitle tag/fourcc", "fourcc/tag" },
2931 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2932 "fix subtitles duration" },
2933 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2934 "set canvas size (WxH or abbreviation)", "size" },
2937 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2938 "deprecated, use -channel", "channel" },
2939 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2940 "deprecated, use -standard", "standard" },
2941 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2944 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2945 "set the maximum demux-decode delay", "seconds" },
2946 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2947 "set the initial demux-decode delay", "seconds" },
2948 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
2949 "override the options from ffserver", "" },
2951 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2952 "A comma-separated list of bitstream filters", "bitstream_filters" },
2953 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2954 "deprecated", "audio bitstream_filters" },
2955 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
2956 "deprecated", "video bitstream_filters" },
2958 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2959 "set the audio options to the indicated preset", "preset" },
2960 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2961 "set the video options to the indicated preset", "preset" },
2962 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2963 "set the subtitle options to the indicated preset", "preset" },
2964 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
2965 "set options from indicated preset file", "filename" },
2966 /* data codec support */
2967 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2968 "force data codec ('copy' to copy stream)", "codec" },
2969 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },