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 const HWAccel hwaccels[] = {
58 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
63 char *vstats_filename;
65 float audio_drift_threshold = 0.1;
66 float dts_delta_threshold = 10;
68 int audio_volume = 256;
69 int audio_sync_method = 0;
70 int video_sync_method = VSYNC_AUTO;
76 int exit_on_error = 0;
80 static int file_overwrite = 0;
81 static int file_skip = 0;
82 static int video_discard = 0;
83 static int intra_dc_precision = 8;
84 static int using_stdin = 0;
85 static int input_sync;
87 static void uninit_options(OptionsContext *o)
89 const OptionDef *po = options;
92 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
94 void *dst = (uint8_t*)o + po->u.off;
96 if (po->flags & OPT_SPEC) {
97 SpecifierOpt **so = dst;
98 int i, *count = (int*)(so + 1);
99 for (i = 0; i < *count; i++) {
100 av_freep(&(*so)[i].specifier);
101 if (po->flags & OPT_STRING)
102 av_freep(&(*so)[i].u.str);
106 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
111 for (i = 0; i < o->nb_stream_maps; i++)
112 av_freep(&o->stream_maps[i].linklabel);
113 av_freep(&o->stream_maps);
114 av_freep(&o->meta_data_maps);
115 av_freep(&o->streamid_map);
118 static void init_options(OptionsContext *o)
120 memset(o, 0, sizeof(*o));
122 o->mux_max_delay = 0.7;
123 o->start_time = AV_NOPTS_VALUE;
124 o->recording_time = INT64_MAX;
125 o->limit_filesize = UINT64_MAX;
126 o->chapters_input_file = INT_MAX;
127 o->accurate_seek = 1;
130 /* return a copy of the input with the stream specifiers removed from the keys */
131 static AVDictionary *strip_specifiers(AVDictionary *dict)
133 AVDictionaryEntry *e = NULL;
134 AVDictionary *ret = NULL;
136 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
137 char *p = strchr(e->key, ':');
141 av_dict_set(&ret, e->key, e->value, 0);
148 static double parse_frame_aspect_ratio(const char *arg)
155 p = strchr(arg, ':');
157 x = strtol(arg, &end, 10);
159 y = strtol(end + 1, &end, 10);
161 ar = (double)x / (double)y;
163 ar = strtod(arg, NULL);
166 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
172 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
174 OptionsContext *o = optctx;
175 return parse_option(o, "codec:a", arg, options);
178 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
180 OptionsContext *o = optctx;
181 return parse_option(o, "codec:v", arg, options);
184 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
186 OptionsContext *o = optctx;
187 return parse_option(o, "codec:s", arg, options);
190 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
192 OptionsContext *o = optctx;
193 return parse_option(o, "codec:d", arg, options);
196 static int opt_map(void *optctx, const char *opt, const char *arg)
198 OptionsContext *o = optctx;
200 int i, negative = 0, file_idx;
201 int sync_file_idx = -1, sync_stream_idx;
209 map = av_strdup(arg);
211 /* parse sync stream first, just pick first matching stream */
212 if (sync = strchr(map, ',')) {
214 sync_file_idx = strtol(sync + 1, &sync, 0);
215 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
216 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
221 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
222 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
223 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
227 if (i == input_files[sync_file_idx]->nb_streams) {
228 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
229 "match any streams.\n", arg);
236 /* this mapping refers to lavfi output */
237 const char *c = map + 1;
238 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
239 m = &o->stream_maps[o->nb_stream_maps - 1];
240 m->linklabel = av_get_token(&c, "]");
242 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
246 file_idx = strtol(map, &p, 0);
247 if (file_idx >= nb_input_files || file_idx < 0) {
248 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
252 /* disable some already defined maps */
253 for (i = 0; i < o->nb_stream_maps; i++) {
254 m = &o->stream_maps[i];
255 if (file_idx == m->file_index &&
256 check_stream_specifier(input_files[m->file_index]->ctx,
257 input_files[m->file_index]->ctx->streams[m->stream_index],
258 *p == ':' ? p + 1 : p) > 0)
262 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
263 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
264 *p == ':' ? p + 1 : p) <= 0)
266 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
267 m = &o->stream_maps[o->nb_stream_maps - 1];
269 m->file_index = file_idx;
272 if (sync_file_idx >= 0) {
273 m->sync_file_index = sync_file_idx;
274 m->sync_stream_index = sync_stream_idx;
276 m->sync_file_index = file_idx;
277 m->sync_stream_index = i;
283 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
291 static int opt_attach(void *optctx, const char *opt, const char *arg)
293 OptionsContext *o = optctx;
294 GROW_ARRAY(o->attachments, o->nb_attachments);
295 o->attachments[o->nb_attachments - 1] = arg;
300 * Parse a metadata specifier passed as 'arg' parameter.
301 * @param arg metadata string to parse
302 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
303 * @param index for type c/p, chapter/program index is written here
304 * @param stream_spec for type s, the stream specifier is written here
306 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
314 if (*(++arg) && *arg != ':') {
315 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
318 *stream_spec = *arg == ':' ? arg + 1 : "";
323 *index = strtol(++arg, NULL, 0);
326 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
333 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
335 AVDictionary **meta_in = NULL;
336 AVDictionary **meta_out;
338 char type_in, type_out;
339 const char *istream_spec = NULL, *ostream_spec = NULL;
340 int idx_in = 0, idx_out = 0;
342 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
343 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
345 if (type_in == 'g' || type_out == 'g')
346 o->metadata_global_manual = 1;
347 if (type_in == 's' || type_out == 's')
348 o->metadata_streams_manual = 1;
349 if (type_in == 'c' || type_out == 'c')
350 o->metadata_chapters_manual = 1;
352 /* ic is NULL when just disabling automatic mappings */
356 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
357 if ((index) < 0 || (index) >= (nb_elems)) {\
358 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
363 #define SET_DICT(type, meta, context, index)\
366 meta = &context->metadata;\
369 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
370 meta = &context->chapters[index]->metadata;\
373 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
374 meta = &context->programs[index]->metadata;\
377 break; /* handled separately below */ \
378 default: av_assert0(0);\
381 SET_DICT(type_in, meta_in, ic, idx_in);
382 SET_DICT(type_out, meta_out, oc, idx_out);
384 /* for input streams choose first matching stream */
385 if (type_in == 's') {
386 for (i = 0; i < ic->nb_streams; i++) {
387 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
388 meta_in = &ic->streams[i]->metadata;
394 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
399 if (type_out == 's') {
400 for (i = 0; i < oc->nb_streams; i++) {
401 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
402 meta_out = &oc->streams[i]->metadata;
403 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
408 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
413 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
415 const AVCodecDescriptor *desc;
416 const char *codec_string = encoder ? "encoder" : "decoder";
420 avcodec_find_encoder_by_name(name) :
421 avcodec_find_decoder_by_name(name);
423 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
424 codec = encoder ? avcodec_find_encoder(desc->id) :
425 avcodec_find_decoder(desc->id);
427 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
428 codec_string, codec->name, desc->name);
432 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
435 if (codec->type != type) {
436 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
442 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
444 char *codec_name = NULL;
446 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
448 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
449 st->codec->codec_id = codec->id;
452 return avcodec_find_decoder(st->codec->codec_id);
455 /* Add all the streams from the given input file to the global
456 * list of input streams. */
457 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
461 for (i = 0; i < ic->nb_streams; i++) {
462 AVStream *st = ic->streams[i];
463 AVCodecContext *dec = st->codec;
464 InputStream *ist = av_mallocz(sizeof(*ist));
465 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
470 GROW_ARRAY(input_streams, nb_input_streams);
471 input_streams[nb_input_streams - 1] = ist;
474 ist->file_index = nb_input_files;
476 st->discard = AVDISCARD_ALL;
479 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
481 ist->dec = choose_decoder(o, ic, st);
482 ist->opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
484 switch (dec->codec_type) {
485 case AVMEDIA_TYPE_VIDEO:
486 ist->resample_height = dec->height;
487 ist->resample_width = dec->width;
488 ist->resample_pix_fmt = dec->pix_fmt;
490 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
491 if (framerate && av_parse_video_rate(&ist->framerate,
493 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
498 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
500 if (!strcmp(hwaccel, "none"))
501 ist->hwaccel_id = HWACCEL_NONE;
502 else if (!strcmp(hwaccel, "auto"))
503 ist->hwaccel_id = HWACCEL_AUTO;
506 for (i = 0; hwaccels[i].name; i++) {
507 if (!strcmp(hwaccels[i].name, hwaccel)) {
508 ist->hwaccel_id = hwaccels[i].id;
513 if (!ist->hwaccel_id) {
514 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
516 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
517 for (i = 0; hwaccels[i].name; i++)
518 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
519 av_log(NULL, AV_LOG_FATAL, "\n");
525 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
526 if (hwaccel_device) {
527 ist->hwaccel_device = av_strdup(hwaccel_device);
528 if (!ist->hwaccel_device)
533 case AVMEDIA_TYPE_AUDIO:
534 guess_input_channel_layout(ist);
536 ist->resample_sample_fmt = dec->sample_fmt;
537 ist->resample_sample_rate = dec->sample_rate;
538 ist->resample_channels = dec->channels;
539 ist->resample_channel_layout = dec->channel_layout;
542 case AVMEDIA_TYPE_DATA:
543 case AVMEDIA_TYPE_SUBTITLE:
544 case AVMEDIA_TYPE_ATTACHMENT:
545 case AVMEDIA_TYPE_UNKNOWN:
553 static void assert_file_overwrite(const char *filename)
555 if (file_overwrite && file_skip) {
556 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
560 if (!file_overwrite &&
561 (strchr(filename, ':') == NULL || filename[1] == ':' ||
562 av_strstart(filename, "file:", NULL))) {
563 if (avio_check(filename, 0) == 0) {
564 if (!using_stdin && !file_skip) {
565 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
568 fprintf(stderr, "Not overwriting - exiting\n");
573 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
580 static void dump_attachment(AVStream *st, const char *filename)
583 AVIOContext *out = NULL;
584 AVDictionaryEntry *e;
586 if (!st->codec->extradata_size) {
587 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
588 nb_input_files - 1, st->index);
591 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
594 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
595 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
599 assert_file_overwrite(filename);
601 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
602 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
607 avio_write(out, st->codec->extradata, st->codec->extradata_size);
612 static int open_input_file(OptionsContext *o, const char *filename)
616 AVInputFormat *file_iformat = NULL;
621 AVDictionary *unused_opts = NULL;
622 AVDictionaryEntry *e = NULL;
623 int orig_nb_streams; // number of streams before avformat_find_stream_info
626 if (!(file_iformat = av_find_input_format(o->format))) {
627 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
632 if (!strcmp(filename, "-"))
635 using_stdin |= !strncmp(filename, "pipe:", 5) ||
636 !strcmp(filename, "/dev/stdin");
638 /* get default parameters from command line */
639 ic = avformat_alloc_context();
641 print_error(filename, AVERROR(ENOMEM));
644 if (o->nb_audio_sample_rate) {
645 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
646 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
648 if (o->nb_audio_channels) {
649 /* because we set audio_channels based on both the "ac" and
650 * "channel_layout" options, we need to check that the specified
651 * demuxer actually has the "channels" option before setting it */
652 if (file_iformat && file_iformat->priv_class &&
653 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
654 AV_OPT_SEARCH_FAKE_OBJ)) {
655 snprintf(buf, sizeof(buf), "%d",
656 o->audio_channels[o->nb_audio_channels - 1].u.i);
657 av_dict_set(&o->g->format_opts, "channels", buf, 0);
660 if (o->nb_frame_rates) {
661 /* set the format-level framerate option;
662 * this is important for video grabbers, e.g. x11 */
663 if (file_iformat && file_iformat->priv_class &&
664 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
665 AV_OPT_SEARCH_FAKE_OBJ)) {
666 av_dict_set(&o->g->format_opts, "framerate",
667 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
670 if (o->nb_frame_sizes) {
671 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
673 if (o->nb_frame_pix_fmts)
674 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
676 ic->flags |= AVFMT_FLAG_NONBLOCK;
677 ic->interrupt_callback = int_cb;
679 /* open the input file with generic libav function */
680 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
682 print_error(filename, err);
685 assert_avoptions(o->g->format_opts);
687 /* apply forced codec ids */
688 for (i = 0; i < ic->nb_streams; i++)
689 choose_decoder(o, ic, ic->streams[i]);
691 /* Set AVCodecContext options for avformat_find_stream_info */
692 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
693 orig_nb_streams = ic->nb_streams;
695 /* If not enough info to get the stream parameters, we decode the
696 first frames to get it. (used in mpeg case for example) */
697 ret = avformat_find_stream_info(ic, opts);
699 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
700 avformat_close_input(&ic);
704 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
705 /* add the stream start time */
706 if (ic->start_time != AV_NOPTS_VALUE)
707 timestamp += ic->start_time;
709 /* if seeking requested, we execute it */
710 if (o->start_time != AV_NOPTS_VALUE) {
711 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
713 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
714 filename, (double)timestamp / AV_TIME_BASE);
718 /* update the current parameters so that they match the one of the input stream */
719 add_input_streams(o, ic);
721 /* dump the file content */
722 av_dump_format(ic, nb_input_files, filename, 0);
724 GROW_ARRAY(input_files, nb_input_files);
725 f = av_mallocz(sizeof(*f));
728 input_files[nb_input_files - 1] = f;
731 f->ist_index = nb_input_streams - ic->nb_streams;
732 f->start_time = o->start_time;
733 f->recording_time = o->recording_time;
734 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
735 f->nb_streams = ic->nb_streams;
736 f->rate_emu = o->rate_emu;
737 f->accurate_seek = o->accurate_seek;
739 /* check if all codec options have been used */
740 unused_opts = strip_specifiers(o->g->codec_opts);
741 for (i = f->ist_index; i < nb_input_streams; i++) {
743 while ((e = av_dict_get(input_streams[i]->opts, "", e,
744 AV_DICT_IGNORE_SUFFIX)))
745 av_dict_set(&unused_opts, e->key, NULL, 0);
749 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
750 const AVClass *class = avcodec_get_class();
751 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
752 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
755 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
756 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
757 "input file #%d (%s) is not a decoding option.\n", e->key,
758 option->help ? option->help : "", nb_input_files - 1,
763 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
764 "input file #%d (%s) has not been used for any stream. The most "
765 "likely reason is either wrong type (e.g. a video option with "
766 "no video streams) or that it is a private option of some decoder "
767 "which was not actually used for any stream.\n", e->key,
768 option->help ? option->help : "", nb_input_files - 1, filename);
770 av_dict_free(&unused_opts);
772 for (i = 0; i < o->nb_dump_attachment; i++) {
775 for (j = 0; j < ic->nb_streams; j++) {
776 AVStream *st = ic->streams[j];
778 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
779 dump_attachment(st, o->dump_attachment[i].u.str);
783 for (i = 0; i < orig_nb_streams; i++)
784 av_dict_free(&opts[i]);
790 static uint8_t *get_line(AVIOContext *s)
796 if (avio_open_dyn_buf(&line) < 0) {
797 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
801 while ((c = avio_r8(s)) && c != '\n')
804 avio_close_dyn_buf(line, &buf);
809 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
813 const char *base[3] = { getenv("AVCONV_DATADIR"),
818 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret; i++) {
822 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
823 i != 1 ? "" : "/.avconv", codec_name, preset_name);
824 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
827 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
828 i != 1 ? "" : "/.avconv", preset_name);
829 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
835 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
837 char *codec_name = NULL;
839 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
841 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
842 NULL, ost->st->codec->codec_type);
843 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
844 } else if (!strcmp(codec_name, "copy"))
845 ost->stream_copy = 1;
847 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
848 ost->st->codec->codec_id = ost->enc->id;
852 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
855 AVStream *st = avformat_new_stream(oc, NULL);
856 int idx = oc->nb_streams - 1, ret = 0;
857 char *bsf = NULL, *next, *codec_tag = NULL;
858 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
862 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
866 if (oc->nb_streams - 1 < o->nb_streamid_map)
867 st->id = o->streamid_map[oc->nb_streams - 1];
869 GROW_ARRAY(output_streams, nb_output_streams);
870 if (!(ost = av_mallocz(sizeof(*ost))))
872 output_streams[nb_output_streams - 1] = ost;
874 ost->file_index = nb_output_files - 1;
877 st->codec->codec_type = type;
878 choose_encoder(o, oc, ost);
880 AVIOContext *s = NULL;
881 char *buf = NULL, *arg = NULL, *preset = NULL;
883 ost->opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
885 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
886 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
889 if (!buf[0] || buf[0] == '#') {
893 if (!(arg = strchr(buf, '='))) {
894 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
898 av_dict_set(&ost->opts, buf, arg, AV_DICT_DONT_OVERWRITE);
900 } while (!s->eof_reached);
904 av_log(NULL, AV_LOG_FATAL,
905 "Preset %s specified for stream %d:%d, but could not be opened.\n",
906 preset, ost->file_index, ost->index);
910 ost->opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
913 avcodec_get_context_defaults3(st->codec, ost->enc);
914 st->codec->codec_type = type; // XXX hack, avcodec_get_context_defaults2() sets type to unknown for stream copy
916 ost->max_frames = INT64_MAX;
917 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
919 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
921 if (next = strchr(bsf, ','))
923 if (!(bsfc = av_bitstream_filter_init(bsf))) {
924 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
928 bsfc_prev->next = bsfc;
930 ost->bitstream_filters = bsfc;
936 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
938 uint32_t tag = strtol(codec_tag, &next, 0);
940 tag = AV_RL32(codec_tag);
941 st->codec->codec_tag = tag;
944 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
946 st->codec->flags |= CODEC_FLAG_QSCALE;
947 st->codec->global_quality = FF_QP2LAMBDA * qscale;
950 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
951 st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;
953 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
955 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
957 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
958 ost->last_mux_dts = AV_NOPTS_VALUE;
963 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
973 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
980 /* read file contents into a string */
981 static uint8_t *read_file(const char *filename)
983 AVIOContext *pb = NULL;
984 AVIOContext *dyn_buf = NULL;
985 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
986 uint8_t buf[1024], *str;
989 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
993 ret = avio_open_dyn_buf(&dyn_buf);
998 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
999 avio_write(dyn_buf, buf, ret);
1000 avio_w8(dyn_buf, 0);
1003 ret = avio_close_dyn_buf(dyn_buf, &str);
1009 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1012 AVStream *st = ost->st;
1013 char *filter = NULL, *filter_script = NULL;
1015 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1016 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1018 if (filter_script && filter) {
1019 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1020 "output stream #%d:%d.\n", nb_output_files, st->index);
1025 return read_file(filter_script);
1027 return av_strdup(filter);
1029 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1033 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
1037 AVCodecContext *video_enc;
1038 char *frame_aspect_ratio = NULL;
1040 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
1042 video_enc = st->codec;
1044 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1045 if (frame_aspect_ratio)
1046 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
1048 if (!ost->stream_copy) {
1049 const char *p = NULL;
1050 char *frame_rate = NULL, *frame_size = NULL;
1051 char *frame_pix_fmt = NULL;
1052 char *intra_matrix = NULL, *inter_matrix = NULL;
1056 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1057 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1058 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1062 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1063 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1064 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1068 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1069 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1070 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1073 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1075 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1077 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1078 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1081 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1083 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1085 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1086 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1089 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1092 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1093 for (i = 0; p; i++) {
1095 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1097 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1100 video_enc->rc_override =
1101 av_realloc(video_enc->rc_override,
1102 sizeof(RcOverride) * (i + 1));
1103 video_enc->rc_override[i].start_frame = start;
1104 video_enc->rc_override[i].end_frame = end;
1106 video_enc->rc_override[i].qscale = q;
1107 video_enc->rc_override[i].quality_factor = 1.0;
1110 video_enc->rc_override[i].qscale = 0;
1111 video_enc->rc_override[i].quality_factor = -q/100.0;
1116 video_enc->rc_override_count = i;
1117 video_enc->intra_dc_precision = intra_dc_precision - 8;
1120 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1123 video_enc->flags |= CODEC_FLAG_PASS1;
1125 video_enc->flags |= CODEC_FLAG_PASS2;
1129 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1130 if (ost->logfile_prefix &&
1131 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1134 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1135 if (ost->forced_keyframes)
1136 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1138 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1140 ost->top_field_first = -1;
1141 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1144 ost->avfilter = get_ost_filters(o, oc, ost);
1148 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1154 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
1158 AVCodecContext *audio_enc;
1160 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
1163 audio_enc = st->codec;
1164 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1166 if (!ost->stream_copy) {
1167 char *sample_fmt = NULL;
1169 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1171 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1173 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1174 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1178 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1180 ost->avfilter = get_ost_filters(o, oc, ost);
1188 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1192 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1193 if (!ost->stream_copy) {
1194 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1201 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1203 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1204 ost->stream_copy = 1;
1209 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1213 AVCodecContext *subtitle_enc;
1215 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1217 subtitle_enc = st->codec;
1219 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1224 /* arg format is "output-stream-index:streamid-value". */
1225 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1227 OptionsContext *o = optctx;
1232 av_strlcpy(idx_str, arg, sizeof(idx_str));
1233 p = strchr(idx_str, ':');
1235 av_log(NULL, AV_LOG_FATAL,
1236 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1241 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1242 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1243 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1247 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1249 AVFormatContext *is = ifile->ctx;
1250 AVFormatContext *os = ofile->ctx;
1254 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1256 return AVERROR(ENOMEM);
1259 for (i = 0; i < is->nb_chapters; i++) {
1260 AVChapter *in_ch = is->chapters[i], *out_ch;
1261 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1262 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1263 AV_TIME_BASE_Q, in_ch->time_base);
1264 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1265 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1268 if (in_ch->end < ts_off)
1270 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1273 out_ch = av_mallocz(sizeof(AVChapter));
1275 return AVERROR(ENOMEM);
1277 out_ch->id = in_ch->id;
1278 out_ch->time_base = in_ch->time_base;
1279 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1280 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1283 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1285 os->chapters[os->nb_chapters++] = out_ch;
1290 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1291 AVFormatContext *oc)
1295 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1296 ofilter->out_tmp->pad_idx)) {
1297 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1298 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1300 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1305 ost->source_index = -1;
1306 ost->filter = ofilter;
1310 if (ost->stream_copy) {
1311 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1312 "which is fed from a complex filtergraph. Filtering and streamcopy "
1313 "cannot be used together.\n", ost->file_index, ost->index);
1317 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1318 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1321 avfilter_inout_free(&ofilter->out_tmp);
1324 static int configure_complex_filters(void)
1328 for (i = 0; i < nb_filtergraphs; i++)
1329 if (!filtergraphs[i]->graph &&
1330 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1335 static int open_output_file(OptionsContext *o, const char *filename)
1337 AVFormatContext *oc;
1339 AVOutputFormat *file_oformat;
1343 AVDictionary *unused_opts = NULL;
1344 AVDictionaryEntry *e = NULL;
1346 if (configure_complex_filters() < 0) {
1347 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1351 GROW_ARRAY(output_files, nb_output_files);
1352 of = av_mallocz(sizeof(*of));
1355 output_files[nb_output_files - 1] = of;
1357 of->ost_index = nb_output_streams;
1358 of->recording_time = o->recording_time;
1359 of->start_time = o->start_time;
1360 of->limit_filesize = o->limit_filesize;
1361 of->shortest = o->shortest;
1362 av_dict_copy(&of->opts, o->g->format_opts, 0);
1364 if (!strcmp(filename, "-"))
1367 oc = avformat_alloc_context();
1369 print_error(filename, AVERROR(ENOMEM));
1373 if (o->recording_time != INT64_MAX)
1374 oc->duration = o->recording_time;
1377 file_oformat = av_guess_format(o->format, NULL, NULL);
1378 if (!file_oformat) {
1379 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1383 file_oformat = av_guess_format(NULL, filename, NULL);
1384 if (!file_oformat) {
1385 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1391 oc->oformat = file_oformat;
1392 oc->interrupt_callback = int_cb;
1393 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1395 /* create streams for all unlabeled output pads */
1396 for (i = 0; i < nb_filtergraphs; i++) {
1397 FilterGraph *fg = filtergraphs[i];
1398 for (j = 0; j < fg->nb_outputs; j++) {
1399 OutputFilter *ofilter = fg->outputs[j];
1401 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1404 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1405 ofilter->out_tmp->pad_idx)) {
1406 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1407 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1408 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1410 init_output_filter(ofilter, o, oc);
1414 if (!o->nb_stream_maps) {
1415 /* pick the "best" stream of each type */
1416 #define NEW_STREAM(type, index)\
1418 ost = new_ ## type ## _stream(o, oc);\
1419 ost->source_index = index;\
1420 ost->sync_ist = input_streams[index];\
1421 input_streams[index]->discard = 0;\
1422 input_streams[index]->st->discard = AVDISCARD_NONE;\
1425 /* video: highest resolution */
1426 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1427 int area = 0, idx = -1;
1428 for (i = 0; i < nb_input_streams; i++) {
1429 ist = input_streams[i];
1430 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1431 ist->st->codec->width * ist->st->codec->height > area) {
1432 area = ist->st->codec->width * ist->st->codec->height;
1436 NEW_STREAM(video, idx);
1439 /* audio: most channels */
1440 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1441 int channels = 0, idx = -1;
1442 for (i = 0; i < nb_input_streams; i++) {
1443 ist = input_streams[i];
1444 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1445 ist->st->codec->channels > channels) {
1446 channels = ist->st->codec->channels;
1450 NEW_STREAM(audio, idx);
1453 /* subtitles: pick first */
1454 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1455 for (i = 0; i < nb_input_streams; i++)
1456 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1457 NEW_STREAM(subtitle, i);
1461 /* do something with data? */
1463 for (i = 0; i < o->nb_stream_maps; i++) {
1464 StreamMap *map = &o->stream_maps[i];
1469 if (map->linklabel) {
1471 OutputFilter *ofilter = NULL;
1474 for (j = 0; j < nb_filtergraphs; j++) {
1475 fg = filtergraphs[j];
1476 for (k = 0; k < fg->nb_outputs; k++) {
1477 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1478 if (out && !strcmp(out->name, map->linklabel)) {
1479 ofilter = fg->outputs[k];
1486 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1487 "in any defined filter graph.\n", map->linklabel);
1490 init_output_filter(ofilter, o, oc);
1492 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1493 switch (ist->st->codec->codec_type) {
1494 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1495 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1496 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1497 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1498 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1500 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1501 map->file_index, map->stream_index);
1505 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1506 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1507 map->sync_stream_index];
1509 ist->st->discard = AVDISCARD_NONE;
1514 /* handle attached files */
1515 for (i = 0; i < o->nb_attachments; i++) {
1517 uint8_t *attachment;
1521 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1522 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1526 if ((len = avio_size(pb)) <= 0) {
1527 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1531 if (!(attachment = av_malloc(len))) {
1532 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1536 avio_read(pb, attachment, len);
1538 ost = new_attachment_stream(o, oc);
1539 ost->stream_copy = 0;
1540 ost->source_index = -1;
1541 ost->attachment_filename = o->attachments[i];
1542 ost->st->codec->extradata = attachment;
1543 ost->st->codec->extradata_size = len;
1545 p = strrchr(o->attachments[i], '/');
1546 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1550 /* check if all codec options have been used */
1551 unused_opts = strip_specifiers(o->g->codec_opts);
1552 for (i = of->ost_index; i < nb_output_streams; i++) {
1554 while ((e = av_dict_get(output_streams[i]->opts, "", e,
1555 AV_DICT_IGNORE_SUFFIX)))
1556 av_dict_set(&unused_opts, e->key, NULL, 0);
1560 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1561 const AVClass *class = avcodec_get_class();
1562 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1563 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1566 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1567 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1568 "output file #%d (%s) is not an encoding option.\n", e->key,
1569 option->help ? option->help : "", nb_output_files - 1,
1574 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1575 "output file #%d (%s) has not been used for any stream. The most "
1576 "likely reason is either wrong type (e.g. a video option with "
1577 "no video streams) or that it is a private option of some encoder "
1578 "which was not actually used for any stream.\n", e->key,
1579 option->help ? option->help : "", nb_output_files - 1, filename);
1581 av_dict_free(&unused_opts);
1583 /* check filename in case of an image number is expected */
1584 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1585 if (!av_filename_number_test(oc->filename)) {
1586 print_error(oc->filename, AVERROR(EINVAL));
1591 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1592 /* test if it already exists to avoid losing precious files */
1593 assert_file_overwrite(filename);
1596 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1597 &oc->interrupt_callback,
1599 print_error(filename, err);
1604 if (o->mux_preload) {
1606 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1607 av_dict_set(&of->opts, "preload", buf, 0);
1609 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1610 oc->flags |= AVFMT_FLAG_NONBLOCK;
1613 for (i = 0; i < o->nb_metadata_map; i++) {
1615 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1617 if (in_file_index >= nb_input_files) {
1618 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1621 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1622 in_file_index >= 0 ?
1623 input_files[in_file_index]->ctx : NULL, o);
1627 if (o->chapters_input_file >= nb_input_files) {
1628 if (o->chapters_input_file == INT_MAX) {
1629 /* copy chapters from the first input file that has them*/
1630 o->chapters_input_file = -1;
1631 for (i = 0; i < nb_input_files; i++)
1632 if (input_files[i]->ctx->nb_chapters) {
1633 o->chapters_input_file = i;
1637 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1638 o->chapters_input_file);
1642 if (o->chapters_input_file >= 0)
1643 copy_chapters(input_files[o->chapters_input_file], of,
1644 !o->metadata_chapters_manual);
1646 /* copy global metadata by default */
1647 if (!o->metadata_global_manual && nb_input_files)
1648 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1649 AV_DICT_DONT_OVERWRITE);
1650 if (!o->metadata_streams_manual)
1651 for (i = of->ost_index; i < nb_output_streams; i++) {
1653 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1655 ist = input_streams[output_streams[i]->source_index];
1656 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1659 /* process manually set metadata */
1660 for (i = 0; i < o->nb_metadata; i++) {
1663 const char *stream_spec;
1664 int index = 0, j, ret;
1666 val = strchr(o->metadata[i].u.str, '=');
1668 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1669 o->metadata[i].u.str);
1674 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1676 for (j = 0; j < oc->nb_streams; j++) {
1677 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1678 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1689 if (index < 0 || index >= oc->nb_chapters) {
1690 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1693 m = &oc->chapters[index]->metadata;
1696 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
1699 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
1706 static int opt_target(void *optctx, const char *opt, const char *arg)
1708 OptionsContext *o = optctx;
1709 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
1710 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
1712 if (!strncmp(arg, "pal-", 4)) {
1715 } else if (!strncmp(arg, "ntsc-", 5)) {
1718 } else if (!strncmp(arg, "film-", 5)) {
1722 /* Try to determine PAL/NTSC by peeking in the input files */
1723 if (nb_input_files) {
1725 for (j = 0; j < nb_input_files; j++) {
1726 for (i = 0; i < input_files[j]->nb_streams; i++) {
1727 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
1728 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
1730 fr = c->time_base.den * 1000 / c->time_base.num;
1734 } else if ((fr == 29970) || (fr == 23976)) {
1739 if (norm != UNKNOWN)
1743 if (norm != UNKNOWN)
1744 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
1747 if (norm == UNKNOWN) {
1748 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
1749 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
1750 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
1754 if (!strcmp(arg, "vcd")) {
1755 opt_video_codec(o, "c:v", "mpeg1video");
1756 opt_audio_codec(o, "c:a", "mp2");
1757 parse_option(o, "f", "vcd", options);
1759 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
1760 parse_option(o, "r", frame_rates[norm], options);
1761 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1763 opt_default(NULL, "b", "1150000");
1764 opt_default(NULL, "maxrate", "1150000");
1765 opt_default(NULL, "minrate", "1150000");
1766 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
1768 opt_default(NULL, "b:a", "224000");
1769 parse_option(o, "ar", "44100", options);
1770 parse_option(o, "ac", "2", options);
1772 opt_default(NULL, "packetsize", "2324");
1773 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
1775 /* We have to offset the PTS, so that it is consistent with the SCR.
1776 SCR starts at 36000, but the first two packs contain only padding
1777 and the first pack from the other stream, respectively, may also have
1778 been written before.
1779 So the real data starts at SCR 36000+3*1200. */
1780 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
1781 } else if (!strcmp(arg, "svcd")) {
1783 opt_video_codec(o, "c:v", "mpeg2video");
1784 opt_audio_codec(o, "c:a", "mp2");
1785 parse_option(o, "f", "svcd", options);
1787 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
1788 parse_option(o, "r", frame_rates[norm], options);
1789 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1791 opt_default(NULL, "b", "2040000");
1792 opt_default(NULL, "maxrate", "2516000");
1793 opt_default(NULL, "minrate", "0"); // 1145000;
1794 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
1795 opt_default(NULL, "flags", "+scan_offset");
1798 opt_default(NULL, "b:a", "224000");
1799 parse_option(o, "ar", "44100", options);
1801 opt_default(NULL, "packetsize", "2324");
1803 } else if (!strcmp(arg, "dvd")) {
1805 opt_video_codec(o, "c:v", "mpeg2video");
1806 opt_audio_codec(o, "c:a", "ac3");
1807 parse_option(o, "f", "dvd", options);
1809 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1810 parse_option(o, "r", frame_rates[norm], options);
1811 opt_default(NULL, "g", norm == PAL ? "15" : "18");
1813 opt_default(NULL, "b", "6000000");
1814 opt_default(NULL, "maxrate", "9000000");
1815 opt_default(NULL, "minrate", "0"); // 1500000;
1816 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
1818 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
1819 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
1821 opt_default(NULL, "b:a", "448000");
1822 parse_option(o, "ar", "48000", options);
1824 } else if (!strncmp(arg, "dv", 2)) {
1826 parse_option(o, "f", "dv", options);
1828 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
1829 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
1830 norm == PAL ? "yuv420p" : "yuv411p", options);
1831 parse_option(o, "r", frame_rates[norm], options);
1833 parse_option(o, "ar", "48000", options);
1834 parse_option(o, "ac", "2", options);
1837 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
1838 return AVERROR(EINVAL);
1843 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
1845 av_free (vstats_filename);
1846 vstats_filename = av_strdup (arg);
1850 static int opt_vstats(void *optctx, const char *opt, const char *arg)
1853 time_t today2 = time(NULL);
1854 struct tm *today = localtime(&today2);
1856 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
1858 return opt_vstats_file(NULL, opt, filename);
1861 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
1863 OptionsContext *o = optctx;
1864 return parse_option(o, "frames:v", arg, options);
1867 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
1869 OptionsContext *o = optctx;
1870 return parse_option(o, "frames:a", arg, options);
1873 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
1875 OptionsContext *o = optctx;
1876 return parse_option(o, "frames:d", arg, options);
1879 static int opt_video_tag(void *optctx, const char *opt, const char *arg)
1881 OptionsContext *o = optctx;
1882 return parse_option(o, "tag:v", arg, options);
1885 static int opt_audio_tag(void *optctx, const char *opt, const char *arg)
1887 OptionsContext *o = optctx;
1888 return parse_option(o, "tag:a", arg, options);
1891 static int opt_subtitle_tag(void *optctx, const char *opt, const char *arg)
1893 OptionsContext *o = optctx;
1894 return parse_option(o, "tag:s", arg, options);
1897 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
1899 OptionsContext *o = optctx;
1900 return parse_option(o, "filter:v", arg, options);
1903 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
1905 OptionsContext *o = optctx;
1906 return parse_option(o, "filter:a", arg, options);
1909 static int opt_vsync(void *optctx, const char *opt, const char *arg)
1911 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
1912 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
1913 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
1915 if (video_sync_method == VSYNC_AUTO)
1916 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
1920 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
1922 OptionsContext *o = optctx;
1923 char layout_str[32];
1926 int ret, channels, ac_str_size;
1929 layout = av_get_channel_layout(arg);
1931 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
1932 return AVERROR(EINVAL);
1934 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
1935 ret = opt_default(NULL, opt, layout_str);
1939 /* set 'ac' option based on channel layout */
1940 channels = av_get_channel_layout_nb_channels(layout);
1941 snprintf(layout_str, sizeof(layout_str), "%d", channels);
1942 stream_str = strchr(opt, ':');
1943 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
1944 ac_str = av_mallocz(ac_str_size);
1946 return AVERROR(ENOMEM);
1947 av_strlcpy(ac_str, "ac", 3);
1949 av_strlcat(ac_str, stream_str, ac_str_size);
1950 ret = parse_option(o, ac_str, layout_str, options);
1956 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
1958 OptionsContext *o = optctx;
1959 return parse_option(o, "q:a", arg, options);
1962 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
1964 GROW_ARRAY(filtergraphs, nb_filtergraphs);
1965 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
1966 return AVERROR(ENOMEM);
1967 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
1968 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
1969 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
1970 return AVERROR(ENOMEM);
1974 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
1976 uint8_t *graph_desc = read_file(arg);
1978 return AVERROR(EINVAL);
1980 GROW_ARRAY(filtergraphs, nb_filtergraphs);
1981 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
1982 return AVERROR(ENOMEM);
1983 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
1984 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
1988 void show_help_default(const char *opt, const char *arg)
1990 /* per-file options have at least one of those set */
1991 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
1992 int show_advanced = 0, show_avoptions = 0;
1995 if (!strcmp(opt, "long"))
1997 else if (!strcmp(opt, "full"))
1998 show_advanced = show_avoptions = 1;
2000 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2005 printf("Getting help:\n"
2006 " -h -- print basic options\n"
2007 " -h long -- print more options\n"
2008 " -h full -- print all options (including all format and codec specific options, very long)\n"
2009 " See man %s for detailed description of the options.\n"
2010 "\n", program_name);
2012 show_help_options(options, "Print help / information / capabilities:",
2015 show_help_options(options, "Global options (affect whole program "
2016 "instead of just one file:",
2017 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2019 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2020 per_file | OPT_EXIT, 0);
2022 show_help_options(options, "Per-file main options:", 0,
2023 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2024 OPT_EXIT, per_file);
2026 show_help_options(options, "Advanced per-file options:",
2027 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2029 show_help_options(options, "Video options:",
2030 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2032 show_help_options(options, "Advanced Video options:",
2033 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2035 show_help_options(options, "Audio options:",
2036 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2038 show_help_options(options, "Advanced Audio options:",
2039 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2040 show_help_options(options, "Subtitle options:",
2041 OPT_SUBTITLE, 0, 0);
2044 if (show_avoptions) {
2045 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2046 show_help_children(avcodec_get_class(), flags);
2047 show_help_children(avformat_get_class(), flags);
2048 show_help_children(sws_get_class(), flags);
2049 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM);
2053 void show_usage(void)
2055 printf("Hyper fast Audio and Video encoder\n");
2056 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2065 static const OptionGroupDef groups[] = {
2066 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2067 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2070 static int open_files(OptionGroupList *l, const char *inout,
2071 int (*open_file)(OptionsContext*, const char*))
2075 for (i = 0; i < l->nb_groups; i++) {
2076 OptionGroup *g = &l->groups[i];
2082 ret = parse_optgroup(&o, g);
2084 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2085 "%s.\n", inout, g->arg);
2089 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2090 ret = open_file(&o, g->arg);
2093 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2097 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2103 int avconv_parse_options(int argc, char **argv)
2105 OptionParseContext octx;
2109 memset(&octx, 0, sizeof(octx));
2111 /* split the commandline into an internal representation */
2112 ret = split_commandline(&octx, argc, argv, options, groups,
2113 FF_ARRAY_ELEMS(groups));
2115 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2119 /* apply global options */
2120 ret = parse_optgroup(NULL, &octx.global_opts);
2122 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2126 /* open input files */
2127 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2129 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2133 /* open output files */
2134 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2136 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2141 uninit_parse_context(&octx);
2143 av_strerror(ret, error, sizeof(error));
2144 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2149 #define OFFSET(x) offsetof(OptionsContext, x)
2150 const OptionDef options[] = {
2152 #include "cmdutils_common_opts.h"
2153 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2154 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2155 "force format", "fmt" },
2156 { "y", OPT_BOOL, { &file_overwrite },
2157 "overwrite output files" },
2158 { "n", OPT_BOOL, { &file_skip },
2159 "never overwrite output files" },
2160 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2161 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2162 "codec name", "codec" },
2163 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2164 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2165 "codec name", "codec" },
2166 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2167 OPT_OUTPUT, { .off = OFFSET(presets) },
2168 "preset name", "preset" },
2169 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2170 OPT_OUTPUT, { .func_arg = opt_map },
2171 "set input stream mapping",
2172 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2173 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2174 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2175 "set metadata information of outfile from infile",
2176 "outfile[,metadata]:infile[,metadata]" },
2177 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2178 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2179 "set chapters mapping", "input_file_index" },
2180 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2181 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2182 "record or transcode \"duration\" seconds of audio/video",
2184 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2185 "set the limit file size in bytes", "limit_size" },
2186 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2187 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2188 "set the start time offset", "time_off" },
2189 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2190 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2191 "enable/disable accurate seeking with -ss" },
2192 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2193 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2194 "set the input ts offset", "time_off" },
2195 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2196 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2197 "set the input ts scale", "scale" },
2198 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2199 "add metadata", "string=string" },
2200 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2201 OPT_OUTPUT, { .func_arg = opt_data_frames },
2202 "set the number of data frames to record", "number" },
2203 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2204 "add timings for benchmarking" },
2205 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2206 "set max runtime in seconds", "limit" },
2207 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2208 "dump each input packet" },
2209 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2210 "when dumping packets, also dump the payload" },
2211 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2212 OPT_INPUT, { .off = OFFSET(rate_emu) },
2213 "read input at native frame rate", "" },
2214 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2215 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2216 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2217 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2218 "video sync method", "" },
2219 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2220 "audio sync method", "" },
2221 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2222 "audio drift threshold", "threshold" },
2223 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2224 "copy timestamps" },
2225 { "copytb", OPT_BOOL | OPT_EXPERT, { ©_tb },
2226 "copy input stream time base when stream copying" },
2227 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2228 OPT_OUTPUT, { .off = OFFSET(shortest) },
2229 "finish encoding within shortest input" },
2230 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2231 "timestamp discontinuity delta threshold", "threshold" },
2232 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2233 "exit on error", "error" },
2234 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2235 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2236 "copy initial non-keyframes" },
2237 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2238 "set the number of frames to record", "number" },
2239 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2240 OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(codec_tags) },
2241 "force codec tag/fourcc", "fourcc/tag" },
2242 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2243 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2244 "use fixed quality scale (VBR)", "q" },
2245 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2246 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2247 "use fixed quality scale (VBR)", "q" },
2248 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2249 "set stream filterchain", "filter_list" },
2250 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2251 "read stream filtergraph description from a file", "filename" },
2252 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2253 "create a complex filtergraph", "graph_description" },
2254 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2255 "read complex filtergraph description from a file", "filename" },
2256 { "stats", OPT_BOOL, { &print_stats },
2257 "print progress report during encoding", },
2258 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2259 OPT_OUTPUT, { .func_arg = opt_attach },
2260 "add an attachment to the output file", "filename" },
2261 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2262 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2263 "extract an attachment into a file", "filename" },
2266 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2267 "set the number of video frames to record", "number" },
2268 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2269 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2270 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2271 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2272 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2273 "set frame size (WxH or abbreviation)", "size" },
2274 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2275 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2276 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2277 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2278 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2279 "set pixel format", "format" },
2280 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(video_disable) },
2282 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2283 "discard threshold", "n" },
2284 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2285 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2286 "rate control override for specific intervals", "override" },
2287 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2288 OPT_OUTPUT, { .func_arg = opt_video_codec },
2289 "force video codec ('copy' to copy stream)", "codec" },
2290 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2291 "select the pass number (1 or 2)", "n" },
2292 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2293 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2294 "select two pass log file name prefix", "prefix" },
2295 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2296 "dump video coding statistics to file" },
2297 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2298 "dump video coding statistics to file", "file" },
2299 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2300 "video filters", "filter list" },
2301 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2302 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2303 "specify intra matrix coeffs", "matrix" },
2304 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2305 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2306 "specify inter matrix coeffs", "matrix" },
2307 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2308 OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2309 "top=1/bottom=0/auto=-1 field first", "" },
2310 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2311 "intra_dc_precision", "precision" },
2312 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2313 OPT_OUTPUT, { .func_arg = opt_video_tag },
2314 "force video tag/fourcc", "fourcc/tag" },
2315 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2316 "show QP histogram" },
2317 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2318 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2319 "force the selected framerate, disable the best supported framerate selection" },
2320 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2321 OPT_OUTPUT, { .func_arg = opt_streamid },
2322 "set the value of an outfile streamid", "streamIndex:value" },
2323 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2324 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2325 "force key frames at specified timestamps", "timestamps" },
2326 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2327 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2328 "use HW accelerated decoding", "hwaccel name" },
2329 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2330 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2331 "select a device for HW acceleration" "devicename" },
2334 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2335 "set the number of audio frames to record", "number" },
2336 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2337 "set audio quality (codec-specific)", "quality", },
2338 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2339 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2340 "set audio sampling rate (in Hz)", "rate" },
2341 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2342 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2343 "set number of audio channels", "channels" },
2344 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(audio_disable) },
2346 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2347 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2348 "force audio codec ('copy' to copy stream)", "codec" },
2349 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2350 OPT_OUTPUT, { .func_arg = opt_audio_tag },
2351 "force audio tag/fourcc", "fourcc/tag" },
2352 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2353 "change audio volume (256=normal)" , "volume" },
2354 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2355 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2356 "set sample format", "format" },
2357 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2358 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2359 "set channel layout", "layout" },
2360 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2361 "audio filters", "filter list" },
2363 /* subtitle options */
2364 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2365 "disable subtitle" },
2366 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2367 "force subtitle codec ('copy' to copy stream)", "codec" },
2368 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_subtitle_tag }
2369 , "force subtitle tag/fourcc", "fourcc/tag" },
2372 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2375 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2376 "set the maximum demux-decode delay", "seconds" },
2377 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2378 "set the initial demux-decode delay", "seconds" },
2380 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2381 "A comma-separated list of bitstream filters", "bitstream_filters" },
2383 /* data codec support */
2384 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2385 "force data codec ('copy' to copy stream)", "codec" },