2 * avconv option parsing
4 * This file is part of Libav.
6 * Libav 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 * Libav 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 Libav; 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 char *vstats_filename;
58 float audio_drift_threshold = 0.1;
59 float dts_delta_threshold = 10;
61 int audio_volume = 256;
62 int audio_sync_method = 0;
63 int video_sync_method = VSYNC_AUTO;
69 int exit_on_error = 0;
73 static int file_overwrite = 0;
74 static int video_discard = 0;
75 static int intra_dc_precision = 8;
76 static int using_stdin = 0;
77 static int input_sync;
79 static void uninit_options(OptionsContext *o)
81 const OptionDef *po = options;
84 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
86 void *dst = (uint8_t*)o + po->u.off;
88 if (po->flags & OPT_SPEC) {
89 SpecifierOpt **so = dst;
90 int i, *count = (int*)(so + 1);
91 for (i = 0; i < *count; i++) {
92 av_freep(&(*so)[i].specifier);
93 if (po->flags & OPT_STRING)
94 av_freep(&(*so)[i].u.str);
98 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
103 for (i = 0; i < o->nb_stream_maps; i++)
104 av_freep(&o->stream_maps[i].linklabel);
105 av_freep(&o->stream_maps);
106 av_freep(&o->meta_data_maps);
107 av_freep(&o->streamid_map);
110 static void init_options(OptionsContext *o)
112 memset(o, 0, sizeof(*o));
114 o->mux_max_delay = 0.7;
115 o->recording_time = INT64_MAX;
116 o->limit_filesize = UINT64_MAX;
117 o->chapters_input_file = INT_MAX;
120 /* return a copy of the input with the stream specifiers removed from the keys */
121 static AVDictionary *strip_specifiers(AVDictionary *dict)
123 AVDictionaryEntry *e = NULL;
124 AVDictionary *ret = NULL;
126 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
127 char *p = strchr(e->key, ':');
131 av_dict_set(&ret, e->key, e->value, 0);
138 static double parse_frame_aspect_ratio(const char *arg)
145 p = strchr(arg, ':');
147 x = strtol(arg, &end, 10);
149 y = strtol(end + 1, &end, 10);
151 ar = (double)x / (double)y;
153 ar = strtod(arg, NULL);
156 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
162 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
164 OptionsContext *o = optctx;
165 return parse_option(o, "codec:a", arg, options);
168 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
170 OptionsContext *o = optctx;
171 return parse_option(o, "codec:v", arg, options);
174 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
176 OptionsContext *o = optctx;
177 return parse_option(o, "codec:s", arg, options);
180 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
182 OptionsContext *o = optctx;
183 return parse_option(o, "codec:d", arg, options);
186 static int opt_map(void *optctx, const char *opt, const char *arg)
188 OptionsContext *o = optctx;
190 int i, negative = 0, file_idx;
191 int sync_file_idx = -1, sync_stream_idx;
199 map = av_strdup(arg);
201 /* parse sync stream first, just pick first matching stream */
202 if (sync = strchr(map, ',')) {
204 sync_file_idx = strtol(sync + 1, &sync, 0);
205 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
206 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
211 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
212 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
213 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
217 if (i == input_files[sync_file_idx]->nb_streams) {
218 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
219 "match any streams.\n", arg);
226 /* this mapping refers to lavfi output */
227 const char *c = map + 1;
228 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
229 m = &o->stream_maps[o->nb_stream_maps - 1];
230 m->linklabel = av_get_token(&c, "]");
232 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
236 file_idx = strtol(map, &p, 0);
237 if (file_idx >= nb_input_files || file_idx < 0) {
238 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
242 /* disable some already defined maps */
243 for (i = 0; i < o->nb_stream_maps; i++) {
244 m = &o->stream_maps[i];
245 if (file_idx == m->file_index &&
246 check_stream_specifier(input_files[m->file_index]->ctx,
247 input_files[m->file_index]->ctx->streams[m->stream_index],
248 *p == ':' ? p + 1 : p) > 0)
252 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
253 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
254 *p == ':' ? p + 1 : p) <= 0)
256 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
257 m = &o->stream_maps[o->nb_stream_maps - 1];
259 m->file_index = file_idx;
262 if (sync_file_idx >= 0) {
263 m->sync_file_index = sync_file_idx;
264 m->sync_stream_index = sync_stream_idx;
266 m->sync_file_index = file_idx;
267 m->sync_stream_index = i;
273 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
281 static int opt_attach(void *optctx, const char *opt, const char *arg)
283 OptionsContext *o = optctx;
284 GROW_ARRAY(o->attachments, o->nb_attachments);
285 o->attachments[o->nb_attachments - 1] = arg;
290 * Parse a metadata specifier passed as 'arg' parameter.
291 * @param arg metadata string to parse
292 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
293 * @param index for type c/p, chapter/program index is written here
294 * @param stream_spec for type s, the stream specifier is written here
296 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
304 if (*(++arg) && *arg != ':') {
305 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
308 *stream_spec = *arg == ':' ? arg + 1 : "";
313 *index = strtol(++arg, NULL, 0);
316 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
323 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
325 AVDictionary **meta_in = NULL;
326 AVDictionary **meta_out;
328 char type_in, type_out;
329 const char *istream_spec = NULL, *ostream_spec = NULL;
330 int idx_in = 0, idx_out = 0;
332 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
333 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
335 if (type_in == 'g' || type_out == 'g')
336 o->metadata_global_manual = 1;
337 if (type_in == 's' || type_out == 's')
338 o->metadata_streams_manual = 1;
339 if (type_in == 'c' || type_out == 'c')
340 o->metadata_chapters_manual = 1;
342 /* ic is NULL when just disabling automatic mappings */
346 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
347 if ((index) < 0 || (index) >= (nb_elems)) {\
348 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
353 #define SET_DICT(type, meta, context, index)\
356 meta = &context->metadata;\
359 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
360 meta = &context->chapters[index]->metadata;\
363 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
364 meta = &context->programs[index]->metadata;\
367 break; /* handled separately below */ \
368 default: av_assert0(0);\
371 SET_DICT(type_in, meta_in, ic, idx_in);
372 SET_DICT(type_out, meta_out, oc, idx_out);
374 /* for input streams choose first matching stream */
375 if (type_in == 's') {
376 for (i = 0; i < ic->nb_streams; i++) {
377 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
378 meta_in = &ic->streams[i]->metadata;
384 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
389 if (type_out == 's') {
390 for (i = 0; i < oc->nb_streams; i++) {
391 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
392 meta_out = &oc->streams[i]->metadata;
393 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
398 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
403 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
405 const AVCodecDescriptor *desc;
406 const char *codec_string = encoder ? "encoder" : "decoder";
410 avcodec_find_encoder_by_name(name) :
411 avcodec_find_decoder_by_name(name);
413 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
414 codec = encoder ? avcodec_find_encoder(desc->id) :
415 avcodec_find_decoder(desc->id);
417 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
418 codec_string, codec->name, desc->name);
422 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
425 if (codec->type != type) {
426 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
432 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
434 char *codec_name = NULL;
436 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
438 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
439 st->codec->codec_id = codec->id;
442 return avcodec_find_decoder(st->codec->codec_id);
445 /* Add all the streams from the given input file to the global
446 * list of input streams. */
447 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
451 for (i = 0; i < ic->nb_streams; i++) {
452 AVStream *st = ic->streams[i];
453 AVCodecContext *dec = st->codec;
454 InputStream *ist = av_mallocz(sizeof(*ist));
455 char *framerate = NULL;
460 GROW_ARRAY(input_streams, nb_input_streams);
461 input_streams[nb_input_streams - 1] = ist;
464 ist->file_index = nb_input_files;
466 st->discard = AVDISCARD_ALL;
469 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
471 ist->dec = choose_decoder(o, ic, st);
472 ist->opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
474 switch (dec->codec_type) {
475 case AVMEDIA_TYPE_VIDEO:
476 ist->resample_height = dec->height;
477 ist->resample_width = dec->width;
478 ist->resample_pix_fmt = dec->pix_fmt;
480 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
481 if (framerate && av_parse_video_rate(&ist->framerate,
483 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
489 case AVMEDIA_TYPE_AUDIO:
490 guess_input_channel_layout(ist);
492 ist->resample_sample_fmt = dec->sample_fmt;
493 ist->resample_sample_rate = dec->sample_rate;
494 ist->resample_channels = dec->channels;
495 ist->resample_channel_layout = dec->channel_layout;
498 case AVMEDIA_TYPE_DATA:
499 case AVMEDIA_TYPE_SUBTITLE:
500 case AVMEDIA_TYPE_ATTACHMENT:
501 case AVMEDIA_TYPE_UNKNOWN:
509 static void assert_file_overwrite(const char *filename)
511 if (!file_overwrite &&
512 (strchr(filename, ':') == NULL || filename[1] == ':' ||
513 av_strstart(filename, "file:", NULL))) {
514 if (avio_check(filename, 0) == 0) {
516 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
519 fprintf(stderr, "Not overwriting - exiting\n");
524 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
531 static void dump_attachment(AVStream *st, const char *filename)
534 AVIOContext *out = NULL;
535 AVDictionaryEntry *e;
537 if (!st->codec->extradata_size) {
538 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
539 nb_input_files - 1, st->index);
542 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
545 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
546 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
550 assert_file_overwrite(filename);
552 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
553 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
558 avio_write(out, st->codec->extradata, st->codec->extradata_size);
563 static int open_input_file(OptionsContext *o, const char *filename)
567 AVInputFormat *file_iformat = NULL;
572 AVDictionary *unused_opts = NULL;
573 AVDictionaryEntry *e = NULL;
574 int orig_nb_streams; // number of streams before avformat_find_stream_info
577 if (!(file_iformat = av_find_input_format(o->format))) {
578 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
583 if (!strcmp(filename, "-"))
586 using_stdin |= !strncmp(filename, "pipe:", 5) ||
587 !strcmp(filename, "/dev/stdin");
589 /* get default parameters from command line */
590 ic = avformat_alloc_context();
592 print_error(filename, AVERROR(ENOMEM));
595 if (o->nb_audio_sample_rate) {
596 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
597 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
599 if (o->nb_audio_channels) {
600 /* because we set audio_channels based on both the "ac" and
601 * "channel_layout" options, we need to check that the specified
602 * demuxer actually has the "channels" option before setting it */
603 if (file_iformat && file_iformat->priv_class &&
604 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
605 AV_OPT_SEARCH_FAKE_OBJ)) {
606 snprintf(buf, sizeof(buf), "%d",
607 o->audio_channels[o->nb_audio_channels - 1].u.i);
608 av_dict_set(&o->g->format_opts, "channels", buf, 0);
611 if (o->nb_frame_rates) {
612 /* set the format-level framerate option;
613 * this is important for video grabbers, e.g. x11 */
614 if (file_iformat && file_iformat->priv_class &&
615 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
616 AV_OPT_SEARCH_FAKE_OBJ)) {
617 av_dict_set(&o->g->format_opts, "framerate",
618 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
621 if (o->nb_frame_sizes) {
622 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
624 if (o->nb_frame_pix_fmts)
625 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
627 ic->flags |= AVFMT_FLAG_NONBLOCK;
628 ic->interrupt_callback = int_cb;
630 /* open the input file with generic libav function */
631 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
633 print_error(filename, err);
636 assert_avoptions(o->g->format_opts);
638 /* apply forced codec ids */
639 for (i = 0; i < ic->nb_streams; i++)
640 choose_decoder(o, ic, ic->streams[i]);
642 /* Set AVCodecContext options for avformat_find_stream_info */
643 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
644 orig_nb_streams = ic->nb_streams;
646 /* If not enough info to get the stream parameters, we decode the
647 first frames to get it. (used in mpeg case for example) */
648 ret = avformat_find_stream_info(ic, opts);
650 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
651 avformat_close_input(&ic);
655 timestamp = o->start_time;
656 /* add the stream start time */
657 if (ic->start_time != AV_NOPTS_VALUE)
658 timestamp += ic->start_time;
660 /* if seeking requested, we execute it */
661 if (o->start_time != 0) {
662 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
664 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
665 filename, (double)timestamp / AV_TIME_BASE);
669 /* update the current parameters so that they match the one of the input stream */
670 add_input_streams(o, ic);
672 /* dump the file content */
673 av_dump_format(ic, nb_input_files, filename, 0);
675 GROW_ARRAY(input_files, nb_input_files);
676 f = av_mallocz(sizeof(*f));
679 input_files[nb_input_files - 1] = f;
682 f->ist_index = nb_input_streams - ic->nb_streams;
683 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
684 f->nb_streams = ic->nb_streams;
685 f->rate_emu = o->rate_emu;
687 /* check if all codec options have been used */
688 unused_opts = strip_specifiers(o->g->codec_opts);
689 for (i = f->ist_index; i < nb_input_streams; i++) {
691 while ((e = av_dict_get(input_streams[i]->opts, "", e,
692 AV_DICT_IGNORE_SUFFIX)))
693 av_dict_set(&unused_opts, e->key, NULL, 0);
697 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
698 const AVClass *class = avcodec_get_class();
699 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
700 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
703 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
704 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
705 "input file #%d (%s) is not a decoding option.\n", e->key,
706 option->help ? option->help : "", nb_input_files - 1,
711 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
712 "input file #%d (%s) has not been used for any stream. The most "
713 "likely reason is either wrong type (e.g. a video option with "
714 "no video streams) or that it is a private option of some decoder "
715 "which was not actually used for any stream.\n", e->key,
716 option->help ? option->help : "", nb_input_files - 1, filename);
718 av_dict_free(&unused_opts);
720 for (i = 0; i < o->nb_dump_attachment; i++) {
723 for (j = 0; j < ic->nb_streams; j++) {
724 AVStream *st = ic->streams[j];
726 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
727 dump_attachment(st, o->dump_attachment[i].u.str);
731 for (i = 0; i < orig_nb_streams; i++)
732 av_dict_free(&opts[i]);
738 static uint8_t *get_line(AVIOContext *s)
744 if (avio_open_dyn_buf(&line) < 0) {
745 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
749 while ((c = avio_r8(s)) && c != '\n')
752 avio_close_dyn_buf(line, &buf);
757 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
761 const char *base[3] = { getenv("AVCONV_DATADIR"),
766 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
770 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
771 i != 1 ? "" : "/.avconv", codec_name, preset_name);
772 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
775 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
776 i != 1 ? "" : "/.avconv", preset_name);
777 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
783 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
785 char *codec_name = NULL;
787 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
789 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
790 NULL, ost->st->codec->codec_type);
791 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
792 } else if (!strcmp(codec_name, "copy"))
793 ost->stream_copy = 1;
795 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
796 ost->st->codec->codec_id = ost->enc->id;
800 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
803 AVStream *st = avformat_new_stream(oc, NULL);
804 int idx = oc->nb_streams - 1, ret = 0;
805 char *bsf = NULL, *next, *codec_tag = NULL;
806 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
810 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
814 if (oc->nb_streams - 1 < o->nb_streamid_map)
815 st->id = o->streamid_map[oc->nb_streams - 1];
817 GROW_ARRAY(output_streams, nb_output_streams);
818 if (!(ost = av_mallocz(sizeof(*ost))))
820 output_streams[nb_output_streams - 1] = ost;
822 ost->file_index = nb_output_files - 1;
825 st->codec->codec_type = type;
826 choose_encoder(o, oc, ost);
828 AVIOContext *s = NULL;
829 char *buf = NULL, *arg = NULL, *preset = NULL;
831 ost->opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
833 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
834 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
837 if (!buf[0] || buf[0] == '#') {
841 if (!(arg = strchr(buf, '='))) {
842 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
846 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
848 } while (!s->eof_reached);
852 av_log(NULL, AV_LOG_FATAL,
853 "Preset %s specified for stream %d:%d, but could not be opened.\n",
854 preset, ost->file_index, ost->index);
858 ost->opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
861 avcodec_get_context_defaults3(st->codec, ost->enc);
862 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
864 ost->max_frames = INT64_MAX;
865 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
867 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
869 if (next = strchr(bsf, ','))
871 if (!(bsfc = av_bitstream_filter_init(bsf))) {
872 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
876 bsfc_prev->next = bsfc;
878 ost->bitstream_filters = bsfc;
884 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
886 uint32_t tag = strtol(codec_tag, &next, 0);
888 tag = AV_RL32(codec_tag);
889 st->codec->codec_tag = tag;
892 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
894 st->codec->flags |= CODEC_FLAG_QSCALE;
895 st->codec->global_quality = FF_QP2LAMBDA * qscale;
898 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
899 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
901 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
903 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
905 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
906 ost->last_mux_dts = AV_NOPTS_VALUE;
911 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
921 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
928 /* read file contents into a string */
929 static uint8_t *read_file(const char *filename)
931 AVIOContext *pb = NULL;
932 AVIOContext *dyn_buf = NULL;
933 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
934 uint8_t buf[1024], *str;
937 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
941 ret = avio_open_dyn_buf(&dyn_buf);
946 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
947 avio_write(dyn_buf, buf, ret);
951 ret = avio_close_dyn_buf(dyn_buf, &str);
957 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
960 AVStream *st = ost->st;
961 char *filter = NULL, *filter_script = NULL;
963 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
964 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
966 if (filter_script && filter) {
967 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
968 "output stream #%d:%d.\n", nb_output_files, st->index);
973 return read_file(filter_script);
975 return av_strdup(filter);
977 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
981 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
985 AVCodecContext *video_enc;
986 char *frame_aspect_ratio = NULL;
988 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
990 video_enc = st->codec;
992 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
993 if (frame_aspect_ratio)
994 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
996 if (!ost->stream_copy) {
997 const char *p = NULL;
998 char *frame_rate = NULL, *frame_size = NULL;
999 char *frame_pix_fmt = NULL;
1000 char *intra_matrix = NULL, *inter_matrix = NULL;
1004 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1005 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1006 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1010 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1011 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1012 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1016 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1017 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1018 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1021 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1023 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1025 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1026 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1029 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1031 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1033 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1034 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1037 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1040 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1041 for (i = 0; p; i++) {
1043 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1045 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1048 video_enc->rc_override =
1049 av_realloc(video_enc->rc_override,
1050 sizeof(RcOverride) * (i + 1));
1051 video_enc->rc_override[i].start_frame = start;
1052 video_enc->rc_override[i].end_frame = end;
1054 video_enc->rc_override[i].qscale = q;
1055 video_enc->rc_override[i].quality_factor = 1.0;
1058 video_enc->rc_override[i].qscale = 0;
1059 video_enc->rc_override[i].quality_factor = -q/100.0;
1064 video_enc->rc_override_count = i;
1065 video_enc->intra_dc_precision = intra_dc_precision - 8;
1068 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1071 video_enc->flags |= CODEC_FLAG_PASS1;
1073 video_enc->flags |= CODEC_FLAG_PASS2;
1077 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1078 if (ost->logfile_prefix &&
1079 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1082 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1083 if (ost->forced_keyframes)
1084 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1086 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1088 ost->top_field_first = -1;
1089 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1092 ost->avfilter = get_ost_filters(o, oc, ost);
1096 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1102 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
1106 AVCodecContext *audio_enc;
1108 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
1111 audio_enc = st->codec;
1112 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1114 if (!ost->stream_copy) {
1115 char *sample_fmt = NULL;
1117 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1119 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1121 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1122 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1126 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1128 ost->avfilter = get_ost_filters(o, oc, ost);
1136 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1140 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1141 if (!ost->stream_copy) {
1142 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1149 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1151 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1152 ost->stream_copy = 1;
1157 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1161 AVCodecContext *subtitle_enc;
1163 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1165 subtitle_enc = st->codec;
1167 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1172 /* arg format is "output-stream-index:streamid-value". */
1173 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1175 OptionsContext *o = optctx;
1180 av_strlcpy(idx_str, arg, sizeof(idx_str));
1181 p = strchr(idx_str, ':');
1183 av_log(NULL, AV_LOG_FATAL,
1184 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1189 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1190 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1191 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1195 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1197 AVFormatContext *is = ifile->ctx;
1198 AVFormatContext *os = ofile->ctx;
1202 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1204 return AVERROR(ENOMEM);
1207 for (i = 0; i < is->nb_chapters; i++) {
1208 AVChapter *in_ch = is->chapters[i], *out_ch;
1209 int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
1210 AV_TIME_BASE_Q, in_ch->time_base);
1211 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1212 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1215 if (in_ch->end < ts_off)
1217 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1220 out_ch = av_mallocz(sizeof(AVChapter));
1222 return AVERROR(ENOMEM);
1224 out_ch->id = in_ch->id;
1225 out_ch->time_base = in_ch->time_base;
1226 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1227 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1230 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1232 os->chapters[os->nb_chapters++] = out_ch;
1237 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1238 AVFormatContext *oc)
1242 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1243 ofilter->out_tmp->pad_idx)) {
1244 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1245 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1247 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1252 ost->source_index = -1;
1253 ost->filter = ofilter;
1257 if (ost->stream_copy) {
1258 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1259 "which is fed from a complex filtergraph. Filtering and streamcopy "
1260 "cannot be used together.\n", ost->file_index, ost->index);
1264 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1265 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1268 avfilter_inout_free(&ofilter->out_tmp);
1271 static int configure_complex_filters(void)
1275 for (i = 0; i < nb_filtergraphs; i++)
1276 if (!filtergraphs[i]->graph &&
1277 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1282 static int open_output_file(OptionsContext *o, const char *filename)
1284 AVFormatContext *oc;
1286 AVOutputFormat *file_oformat;
1290 AVDictionary *unused_opts = NULL;
1291 AVDictionaryEntry *e = NULL;
1293 if (configure_complex_filters() < 0) {
1294 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1298 GROW_ARRAY(output_files, nb_output_files);
1299 of = av_mallocz(sizeof(*of));
1302 output_files[nb_output_files - 1] = of;
1304 of->ost_index = nb_output_streams;
1305 of->recording_time = o->recording_time;
1306 of->start_time = o->start_time;
1307 of->limit_filesize = o->limit_filesize;
1308 of->shortest = o->shortest;
1309 av_dict_copy(&of->opts, o->g->format_opts, 0);
1311 if (!strcmp(filename, "-"))
1314 oc = avformat_alloc_context();
1316 print_error(filename, AVERROR(ENOMEM));
1320 if (o->recording_time != INT64_MAX)
1321 oc->duration = o->recording_time;
1324 file_oformat = av_guess_format(o->format, NULL, NULL);
1325 if (!file_oformat) {
1326 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1330 file_oformat = av_guess_format(NULL, filename, NULL);
1331 if (!file_oformat) {
1332 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1338 oc->oformat = file_oformat;
1339 oc->interrupt_callback = int_cb;
1340 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1342 /* create streams for all unlabeled output pads */
1343 for (i = 0; i < nb_filtergraphs; i++) {
1344 FilterGraph *fg = filtergraphs[i];
1345 for (j = 0; j < fg->nb_outputs; j++) {
1346 OutputFilter *ofilter = fg->outputs[j];
1348 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1351 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1352 ofilter->out_tmp->pad_idx)) {
1353 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1354 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1355 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1357 init_output_filter(ofilter, o, oc);
1361 if (!o->nb_stream_maps) {
1362 /* pick the "best" stream of each type */
1363 #define NEW_STREAM(type, index)\
1365 ost = new_ ## type ## _stream(o, oc);\
1366 ost->source_index = index;\
1367 ost->sync_ist = input_streams[index];\
1368 input_streams[index]->discard = 0;\
1369 input_streams[index]->st->discard = AVDISCARD_NONE;\
1372 /* video: highest resolution */
1373 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1374 int area = 0, idx = -1;
1375 for (i = 0; i < nb_input_streams; i++) {
1376 ist = input_streams[i];
1377 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1378 ist->st->codec->width * ist->st->codec->height > area) {
1379 area = ist->st->codec->width * ist->st->codec->height;
1383 NEW_STREAM(video, idx);
1386 /* audio: most channels */
1387 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1388 int channels = 0, idx = -1;
1389 for (i = 0; i < nb_input_streams; i++) {
1390 ist = input_streams[i];
1391 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1392 ist->st->codec->channels > channels) {
1393 channels = ist->st->codec->channels;
1397 NEW_STREAM(audio, idx);
1400 /* subtitles: pick first */
1401 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1402 for (i = 0; i < nb_input_streams; i++)
1403 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1404 NEW_STREAM(subtitle, i);
1408 /* do something with data? */
1410 for (i = 0; i < o->nb_stream_maps; i++) {
1411 StreamMap *map = &o->stream_maps[i];
1416 if (map->linklabel) {
1418 OutputFilter *ofilter = NULL;
1421 for (j = 0; j < nb_filtergraphs; j++) {
1422 fg = filtergraphs[j];
1423 for (k = 0; k < fg->nb_outputs; k++) {
1424 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1425 if (out && !strcmp(out->name, map->linklabel)) {
1426 ofilter = fg->outputs[k];
1433 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1434 "in any defined filter graph.\n", map->linklabel);
1437 init_output_filter(ofilter, o, oc);
1439 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1440 switch (ist->st->codec->codec_type) {
1441 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1442 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1443 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1444 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1445 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1447 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1448 map->file_index, map->stream_index);
1452 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1453 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1454 map->sync_stream_index];
1456 ist->st->discard = AVDISCARD_NONE;
1461 /* handle attached files */
1462 for (i = 0; i < o->nb_attachments; i++) {
1464 uint8_t *attachment;
1468 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1469 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1473 if ((len = avio_size(pb)) <= 0) {
1474 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1478 if (!(attachment = av_malloc(len))) {
1479 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1483 avio_read(pb, attachment, len);
1485 ost = new_attachment_stream(o, oc);
1486 ost->stream_copy = 0;
1487 ost->source_index = -1;
1488 ost->attachment_filename = o->attachments[i];
1489 ost->st->codec->extradata = attachment;
1490 ost->st->codec->extradata_size = len;
1492 p = strrchr(o->attachments[i], '/');
1493 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1497 /* check if all codec options have been used */
1498 unused_opts = strip_specifiers(o->g->codec_opts);
1499 for (i = of->ost_index; i < nb_output_streams; i++) {
1501 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1502 AV_DICT_IGNORE_SUFFIX)))
1503 av_dict_set(&unused_opts, e->key, NULL, 0);
1507 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1508 const AVClass *class = avcodec_get_class();
1509 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1510 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1513 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1514 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1515 "output file #%d (%s) is not an encoding option.\n", e->key,
1516 option->help ? option->help : "", nb_output_files - 1,
1521 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1522 "output file #%d (%s) has not been used for any stream. The most "
1523 "likely reason is either wrong type (e.g. a video option with "
1524 "no video streams) or that it is a private option of some encoder "
1525 "which was not actually used for any stream.\n", e->key,
1526 option->help ? option->help : "", nb_output_files - 1, filename);
1528 av_dict_free(&unused_opts);
1530 /* check filename in case of an image number is expected */
1531 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1532 if (!av_filename_number_test(oc->filename)) {
1533 print_error(oc->filename, AVERROR(EINVAL));
1538 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1539 /* test if it already exists to avoid losing precious files */
1540 assert_file_overwrite(filename);
1543 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1544 &oc->interrupt_callback,
1546 print_error(filename, err);
1551 if (o->mux_preload) {
1553 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1554 av_dict_set(&of->opts, "preload", buf, 0);
1556 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1557 oc->flags |= AVFMT_FLAG_NONBLOCK;
1560 for (i = 0; i < o->nb_metadata_map; i++) {
1562 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1564 if (in_file_index >= nb_input_files) {
1565 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1568 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1569 in_file_index >= 0 ?
1570 input_files[in_file_index]->ctx : NULL, o);
1574 if (o->chapters_input_file >= nb_input_files) {
1575 if (o->chapters_input_file == INT_MAX) {
1576 /* copy chapters from the first input file that has them*/
1577 o->chapters_input_file = -1;
1578 for (i = 0; i < nb_input_files; i++)
1579 if (input_files[i]->ctx->nb_chapters) {
1580 o->chapters_input_file = i;
1584 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1585 o->chapters_input_file);
1589 if (o->chapters_input_file >= 0)
1590 copy_chapters(input_files[o->chapters_input_file], of,
1591 !o->metadata_chapters_manual);
1593 /* copy global metadata by default */
1594 if (!o->metadata_global_manual && nb_input_files)
1595 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1596 AV_DICT_DONT_OVERWRITE);
1597 if (!o->metadata_streams_manual)
1598 for (i = of->ost_index; i < nb_output_streams; i++) {
1600 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1602 ist = input_streams[output_streams[i]->source_index];
1603 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1606 /* process manually set metadata */
1607 for (i = 0; i < o->nb_metadata; i++) {
1610 const char *stream_spec;
1611 int index = 0, j, ret;
1613 val = strchr(o->metadata[i].u.str, '=');
1615 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1616 o->metadata[i].u.str);
1621 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1623 for (j = 0; j < oc->nb_streams; j++) {
1624 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1625 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1636 if (index < 0 || index >= oc->nb_chapters) {
1637 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1640 m = &oc->chapters[index]->metadata;
1643 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
1646 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
1653 static int opt_target(void *optctx, const char *opt, const char *arg)
1655 OptionsContext *o = optctx;
1656 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
1657 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
1659 if (!strncmp(arg, "pal-", 4)) {
1662 } else if (!strncmp(arg, "ntsc-", 5)) {
1665 } else if (!strncmp(arg, "film-", 5)) {
1669 /* Try to determine PAL/NTSC by peeking in the input files */
1670 if (nb_input_files) {
1672 for (j = 0; j < nb_input_files; j++) {
1673 for (i = 0; i < input_files[j]->nb_streams; i++) {
1674 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
1675 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
1677 fr = c->time_base.den * 1000 / c->time_base.num;
1681 } else if ((fr == 29970) || (fr == 23976)) {
1686 if (norm != UNKNOWN)
1690 if (norm != UNKNOWN)
1691 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
1694 if (norm == UNKNOWN) {
1695 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
1696 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
1697 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
1701 if (!strcmp(arg, "vcd")) {
1702 opt_video_codec(o, "c:v", "mpeg1video");
1703 opt_audio_codec(o, "c:a", "mp2");
1704 parse_option(o, "f", "vcd", options);
1706 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
1707 parse_option(o, "r", frame_rates[norm], options);
1708 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1710 opt_default(NULL, "b", "1150000");
1711 opt_default(NULL, "maxrate", "1150000");
1712 opt_default(NULL, "minrate", "1150000");
1713 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
1715 opt_default(NULL, "b:a", "224000");
1716 parse_option(o, "ar", "44100", options);
1717 parse_option(o, "ac", "2", options);
1719 opt_default(NULL, "packetsize", "2324");
1720 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
1722 /* We have to offset the PTS, so that it is consistent with the SCR.
1723 SCR starts at 36000, but the first two packs contain only padding
1724 and the first pack from the other stream, respectively, may also have
1725 been written before.
1726 So the real data starts at SCR 36000+3*1200. */
1727 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
1728 } else if (!strcmp(arg, "svcd")) {
1730 opt_video_codec(o, "c:v", "mpeg2video");
1731 opt_audio_codec(o, "c:a", "mp2");
1732 parse_option(o, "f", "svcd", options);
1734 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
1735 parse_option(o, "r", frame_rates[norm], options);
1736 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1738 opt_default(NULL, "b", "2040000");
1739 opt_default(NULL, "maxrate", "2516000");
1740 opt_default(NULL, "minrate", "0"); // 1145000;
1741 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
1742 opt_default(NULL, "flags", "+scan_offset");
1745 opt_default(NULL, "b:a", "224000");
1746 parse_option(o, "ar", "44100", options);
1748 opt_default(NULL, "packetsize", "2324");
1750 } else if (!strcmp(arg, "dvd")) {
1752 opt_video_codec(o, "c:v", "mpeg2video");
1753 opt_audio_codec(o, "c:a", "ac3");
1754 parse_option(o, "f", "dvd", options);
1756 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1757 parse_option(o, "r", frame_rates[norm], options);
1758 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1760 opt_default(NULL, "b", "6000000");
1761 opt_default(NULL, "maxrate", "9000000");
1762 opt_default(NULL, "minrate", "0"); // 1500000;
1763 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
1765 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
1766 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
1768 opt_default(NULL, "b:a", "448000");
1769 parse_option(o, "ar", "48000", options);
1771 } else if (!strncmp(arg, "dv", 2)) {
1773 parse_option(o, "f", "dv", options);
1775 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1776 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
1777 norm == PAL ? "yuv420p" : "yuv411p", options);
1778 parse_option(o, "r", frame_rates[norm], options);
1780 parse_option(o, "ar", "48000", options);
1781 parse_option(o, "ac", "2", options);
1784 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
1785 return AVERROR(EINVAL);
1790 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
1792 av_free (vstats_filename);
1793 vstats_filename = av_strdup (arg);
1797 static int opt_vstats(void *optctx, const char *opt, const char *arg)
1800 time_t today2 = time(NULL);
1801 struct tm *today = localtime(&today2);
1803 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
1805 return opt_vstats_file(NULL, opt, filename);
1808 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
1810 OptionsContext *o = optctx;
1811 return parse_option(o, "frames:v", arg, options);
1814 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
1816 OptionsContext *o = optctx;
1817 return parse_option(o, "frames:a", arg, options);
1820 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
1822 OptionsContext *o = optctx;
1823 return parse_option(o, "frames:d", arg, options);
1826 static int opt_video_tag(void *optctx, const char *opt, const char *arg)
1828 OptionsContext *o = optctx;
1829 return parse_option(o, "tag:v", arg, options);
1832 static int opt_audio_tag(void *optctx, const char *opt, const char *arg)
1834 OptionsContext *o = optctx;
1835 return parse_option(o, "tag:a", arg, options);
1838 static int opt_subtitle_tag(void *optctx, const char *opt, const char *arg)
1840 OptionsContext *o = optctx;
1841 return parse_option(o, "tag:s", arg, options);
1844 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
1846 OptionsContext *o = optctx;
1847 return parse_option(o, "filter:v", arg, options);
1850 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
1852 OptionsContext *o = optctx;
1853 return parse_option(o, "filter:a", arg, options);
1856 static int opt_vsync(void *optctx, const char *opt, const char *arg)
1858 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
1859 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
1860 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
1862 if (video_sync_method == VSYNC_AUTO)
1863 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
1867 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
1869 int flags = av_parse_cpu_flags(arg);
1874 av_set_cpu_flags_mask(flags);
1878 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
1880 OptionsContext *o = optctx;
1881 char layout_str[32];
1884 int ret, channels, ac_str_size;
1887 layout = av_get_channel_layout(arg);
1889 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
1890 return AVERROR(EINVAL);
1892 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
1893 ret = opt_default(NULL, opt, layout_str);
1897 /* set 'ac' option based on channel layout */
1898 channels = av_get_channel_layout_nb_channels(layout);
1899 snprintf(layout_str, sizeof(layout_str), "%d", channels);
1900 stream_str = strchr(opt, ':');
1901 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
1902 ac_str = av_mallocz(ac_str_size);
1904 return AVERROR(ENOMEM);
1905 av_strlcpy(ac_str, "ac", 3);
1907 av_strlcat(ac_str, stream_str, ac_str_size);
1908 ret = parse_option(o, ac_str, layout_str, options);
1914 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
1916 OptionsContext *o = optctx;
1917 return parse_option(o, "q:a", arg, options);
1920 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
1922 GROW_ARRAY(filtergraphs, nb_filtergraphs);
1923 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
1924 return AVERROR(ENOMEM);
1925 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
1926 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
1927 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
1928 return AVERROR(ENOMEM);
1932 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
1934 uint8_t *graph_desc = read_file(arg);
1936 return AVERROR(EINVAL);
1938 GROW_ARRAY(filtergraphs, nb_filtergraphs);
1939 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
1940 return AVERROR(ENOMEM);
1941 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
1942 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
1946 void show_help_default(const char *opt, const char *arg)
1948 /* per-file options have at least one of those set */
1949 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
1950 int show_advanced = 0, show_avoptions = 0;
1953 if (!strcmp(opt, "long"))
1955 else if (!strcmp(opt, "full"))
1956 show_advanced = show_avoptions = 1;
1958 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
1963 printf("Getting help:\n"
1964 " -h -- print basic options\n"
1965 " -h long -- print more options\n"
1966 " -h full -- print all options (including all format and codec specific options, very long)\n"
1967 " See man %s for detailed description of the options.\n"
1968 "\n", program_name);
1970 show_help_options(options, "Print help / information / capabilities:",
1973 show_help_options(options, "Global options (affect whole program "
1974 "instead of just one file:",
1975 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
1977 show_help_options(options, "Advanced global options:", OPT_EXPERT,
1978 per_file | OPT_EXIT, 0);
1980 show_help_options(options, "Per-file main options:", 0,
1981 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
1982 OPT_EXIT, per_file);
1984 show_help_options(options, "Advanced per-file options:",
1985 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
1987 show_help_options(options, "Video options:",
1988 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
1990 show_help_options(options, "Advanced Video options:",
1991 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
1993 show_help_options(options, "Audio options:",
1994 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
1996 show_help_options(options, "Advanced Audio options:",
1997 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
1998 show_help_options(options, "Subtitle options:",
1999 OPT_SUBTITLE, 0, 0);
2002 if (show_avoptions) {
2003 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2004 show_help_children(avcodec_get_class(), flags);
2005 show_help_children(avformat_get_class(), flags);
2006 show_help_children(sws_get_class(), flags);
2007 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM);
2011 void show_usage(void)
2013 printf("Hyper fast Audio and Video encoder\n");
2014 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2023 static const OptionGroupDef groups[] = {
2024 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2025 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2028 static int open_files(OptionGroupList *l, const char *inout,
2029 int (*open_file)(OptionsContext*, const char*))
2033 for (i = 0; i < l->nb_groups; i++) {
2034 OptionGroup *g = &l->groups[i];
2040 ret = parse_optgroup(&o, g);
2042 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2043 "%s.\n", inout, g->arg);
2047 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2048 ret = open_file(&o, g->arg);
2051 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2055 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2061 int avconv_parse_options(int argc, char **argv)
2063 OptionParseContext octx;
2067 memset(&octx, 0, sizeof(octx));
2069 /* split the commandline into an internal representation */
2070 ret = split_commandline(&octx, argc, argv, options, groups,
2071 FF_ARRAY_ELEMS(groups));
2073 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2077 /* apply global options */
2078 ret = parse_optgroup(NULL, &octx.global_opts);
2080 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2084 /* open input files */
2085 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2087 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2091 /* open output files */
2092 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2094 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2099 uninit_parse_context(&octx);
2101 av_strerror(ret, error, sizeof(error));
2102 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2107 #define OFFSET(x) offsetof(OptionsContext, x)
2108 const OptionDef options[] = {
2110 #include "cmdutils_common_opts.h"
2111 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2112 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2113 "force format", "fmt" },
2114 { "y", OPT_BOOL, { &file_overwrite },
2115 "overwrite output files" },
2116 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2117 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2118 "codec name", "codec" },
2119 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2120 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2121 "codec name", "codec" },
2122 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2123 OPT_OUTPUT, { .off = OFFSET(presets) },
2124 "preset name", "preset" },
2125 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2126 OPT_OUTPUT, { .func_arg = opt_map },
2127 "set input stream mapping",
2128 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2129 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2130 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2131 "set metadata information of outfile from infile",
2132 "outfile[,metadata]:infile[,metadata]" },
2133 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2134 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2135 "set chapters mapping", "input_file_index" },
2136 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2137 "record or transcode \"duration\" seconds of audio/video",
2139 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2140 "set the limit file size in bytes", "limit_size" },
2141 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2142 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2143 "set the start time offset", "time_off" },
2144 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2145 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2146 "set the input ts offset", "time_off" },
2147 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2148 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2149 "set the input ts scale", "scale" },
2150 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2151 "add metadata", "string=string" },
2152 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2153 OPT_OUTPUT, { .func_arg = opt_data_frames },
2154 "set the number of data frames to record", "number" },
2155 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2156 "add timings for benchmarking" },
2157 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2158 "set max runtime in seconds", "limit" },
2159 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2160 "dump each input packet" },
2161 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2162 "when dumping packets, also dump the payload" },
2163 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2164 OPT_INPUT, { .off = OFFSET(rate_emu) },
2165 "read input at native frame rate", "" },
2166 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2167 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2168 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2169 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2170 "video sync method", "" },
2171 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2172 "audio sync method", "" },
2173 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2174 "audio drift threshold", "threshold" },
2175 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2176 "copy timestamps" },
2177 { "copytb", OPT_BOOL | OPT_EXPERT, { ©_tb },
2178 "copy input stream time base when stream copying" },
2179 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2180 OPT_OUTPUT, { .off = OFFSET(shortest) },
2181 "finish encoding within shortest input" },
2182 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2183 "timestamp discontinuity delta threshold", "threshold" },
2184 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2185 "exit on error", "error" },
2186 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2187 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2188 "copy initial non-keyframes" },
2189 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2190 "set the number of frames to record", "number" },
2191 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2192 OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(codec_tags) },
2193 "force codec tag/fourcc", "fourcc/tag" },
2194 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2195 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2196 "use fixed quality scale (VBR)", "q" },
2197 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2198 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2199 "use fixed quality scale (VBR)", "q" },
2200 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2201 "set stream filterchain", "filter_list" },
2202 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2203 "read stream filtergraph description from a file", "filename" },
2204 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2205 "create a complex filtergraph", "graph_description" },
2206 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2207 "read complex filtergraph description from a file", "filename" },
2208 { "stats", OPT_BOOL, { &print_stats },
2209 "print progress report during encoding", },
2210 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2211 OPT_OUTPUT, { .func_arg = opt_attach },
2212 "add an attachment to the output file", "filename" },
2213 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2214 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2215 "extract an attachment into a file", "filename" },
2216 { "cpuflags", HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },
2217 "set CPU flags mask", "mask" },
2220 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2221 "set the number of video frames to record", "number" },
2222 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2223 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2224 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2225 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2226 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2227 "set frame size (WxH or abbreviation)", "size" },
2228 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2229 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2230 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2231 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2232 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2233 "set pixel format", "format" },
2234 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(video_disable) },
2236 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2237 "discard threshold", "n" },
2238 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2239 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2240 "rate control override for specific intervals", "override" },
2241 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2242 OPT_OUTPUT, { .func_arg = opt_video_codec },
2243 "force video codec ('copy' to copy stream)", "codec" },
2244 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2245 "select the pass number (1 or 2)", "n" },
2246 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2247 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2248 "select two pass log file name prefix", "prefix" },
2249 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2250 "dump video coding statistics to file" },
2251 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2252 "dump video coding statistics to file", "file" },
2253 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2254 "video filters", "filter list" },
2255 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2256 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2257 "specify intra matrix coeffs", "matrix" },
2258 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2259 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2260 "specify inter matrix coeffs", "matrix" },
2261 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2262 OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2263 "top=1/bottom=0/auto=-1 field first", "" },
2264 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2265 "intra_dc_precision", "precision" },
2266 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2267 OPT_OUTPUT, { .func_arg = opt_video_tag },
2268 "force video tag/fourcc", "fourcc/tag" },
2269 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2270 "show QP histogram" },
2271 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2272 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2273 "force the selected framerate, disable the best supported framerate selection" },
2274 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2275 OPT_OUTPUT, { .func_arg = opt_streamid },
2276 "set the value of an outfile streamid", "streamIndex:value" },
2277 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2278 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2279 "force key frames at specified timestamps", "timestamps" },
2282 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2283 "set the number of audio frames to record", "number" },
2284 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2285 "set audio quality (codec-specific)", "quality", },
2286 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2287 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2288 "set audio sampling rate (in Hz)", "rate" },
2289 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2290 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2291 "set number of audio channels", "channels" },
2292 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(audio_disable) },
2294 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2295 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2296 "force audio codec ('copy' to copy stream)", "codec" },
2297 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2298 OPT_OUTPUT, { .func_arg = opt_audio_tag },
2299 "force audio tag/fourcc", "fourcc/tag" },
2300 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2301 "change audio volume (256=normal)" , "volume" },
2302 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2303 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2304 "set sample format", "format" },
2305 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2306 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2307 "set channel layout", "layout" },
2308 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2309 "audio filters", "filter list" },
2311 /* subtitle options */
2312 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2313 "disable subtitle" },
2314 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2315 "force subtitle codec ('copy' to copy stream)", "codec" },
2316 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_subtitle_tag }
2317 , "force subtitle tag/fourcc", "fourcc/tag" },
2320 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2323 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2324 "set the maximum demux-decode delay", "seconds" },
2325 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2326 "set the initial demux-decode delay", "seconds" },
2328 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2329 "A comma-separated list of bitstream filters", "bitstream_filters" },
2331 /* data codec support */
2332 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2333 "force data codec ('copy' to copy stream)", "codec" },