2 * ffmpeg option parsing
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavformat/avformat.h"
28 #include "libavcodec/avcodec.h"
30 #include "libavfilter/avfilter.h"
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
43 #include "libavutil/time_internal.h"
45 #define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
47 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
50 for (i = 0; i < o->nb_ ## name; i++) {\
51 char *spec = o->name[i].specifier;\
52 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
53 outvar = o->name[i].u.type;\
59 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
62 for (i = 0; i < o->nb_ ## name; i++) {\
63 char *spec = o->name[i].specifier;\
64 if (!strcmp(spec, mediatype))\
65 outvar = o->name[i].u.type;\
69 const HWAccel hwaccels[] = {
71 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
74 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
77 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
82 char *vstats_filename;
85 float audio_drift_threshold = 0.1;
86 float dts_delta_threshold = 10;
87 float dts_error_threshold = 3600*30;
89 int audio_volume = 256;
90 int audio_sync_method = 0;
91 int video_sync_method = VSYNC_AUTO;
92 float frame_drop_threshold = 0;
93 int do_deinterlace = 0;
95 int do_benchmark_all = 0;
99 int start_at_zero = 0;
102 int exit_on_error = 0;
103 int print_stats = -1;
105 int stdin_interaction = 1;
106 int frame_bits_per_raw_sample = 0;
107 float max_error_rate = 2.0/3;
110 static int intra_only = 0;
111 static int file_overwrite = 0;
112 static int no_file_overwrite = 0;
113 static int do_psnr = 0;
114 static int input_sync;
115 static int override_ffserver = 0;
116 static int input_stream_potentially_available = 0;
117 static int ignore_unknown_streams = 0;
118 static int copy_unknown_streams = 0;
120 static void uninit_options(OptionsContext *o)
122 const OptionDef *po = options;
125 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
127 void *dst = (uint8_t*)o + po->u.off;
129 if (po->flags & OPT_SPEC) {
130 SpecifierOpt **so = dst;
131 int i, *count = (int*)(so + 1);
132 for (i = 0; i < *count; i++) {
133 av_freep(&(*so)[i].specifier);
134 if (po->flags & OPT_STRING)
135 av_freep(&(*so)[i].u.str);
139 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
144 for (i = 0; i < o->nb_stream_maps; i++)
145 av_freep(&o->stream_maps[i].linklabel);
146 av_freep(&o->stream_maps);
147 av_freep(&o->audio_channel_maps);
148 av_freep(&o->streamid_map);
149 av_freep(&o->attachments);
152 static void init_options(OptionsContext *o)
154 memset(o, 0, sizeof(*o));
156 o->stop_time = INT64_MAX;
157 o->mux_max_delay = 0.7;
158 o->start_time = AV_NOPTS_VALUE;
159 o->recording_time = INT64_MAX;
160 o->limit_filesize = UINT64_MAX;
161 o->chapters_input_file = INT_MAX;
162 o->accurate_seek = 1;
165 /* return a copy of the input with the stream specifiers removed from the keys */
166 static AVDictionary *strip_specifiers(AVDictionary *dict)
168 AVDictionaryEntry *e = NULL;
169 AVDictionary *ret = NULL;
171 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
172 char *p = strchr(e->key, ':');
176 av_dict_set(&ret, e->key, e->value, 0);
183 static int opt_sameq(void *optctx, const char *opt, const char *arg)
185 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
186 "If you are looking for an option to preserve the quality (which is not "
187 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
189 return AVERROR(EINVAL);
192 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
194 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
195 return opt_default(optctx, "channel", arg);
198 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
200 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
201 return opt_default(optctx, "standard", arg);
204 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
206 OptionsContext *o = optctx;
207 return parse_option(o, "codec:a", arg, options);
210 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
212 OptionsContext *o = optctx;
213 return parse_option(o, "codec:v", arg, options);
216 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
218 OptionsContext *o = optctx;
219 return parse_option(o, "codec:s", arg, options);
222 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
224 OptionsContext *o = optctx;
225 return parse_option(o, "codec:d", arg, options);
228 static int opt_map(void *optctx, const char *opt, const char *arg)
230 OptionsContext *o = optctx;
232 int i, negative = 0, file_idx;
233 int sync_file_idx = -1, sync_stream_idx = 0;
242 map = av_strdup(arg);
244 return AVERROR(ENOMEM);
246 /* parse sync stream first, just pick first matching stream */
247 if (sync = strchr(map, ',')) {
249 sync_file_idx = strtol(sync + 1, &sync, 0);
250 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
251 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
256 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
257 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
258 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
262 if (i == input_files[sync_file_idx]->nb_streams) {
263 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
264 "match any streams.\n", arg);
271 /* this mapping refers to lavfi output */
272 const char *c = map + 1;
273 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
274 m = &o->stream_maps[o->nb_stream_maps - 1];
275 m->linklabel = av_get_token(&c, "]");
277 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
281 if (allow_unused = strchr(map, '?'))
283 file_idx = strtol(map, &p, 0);
284 if (file_idx >= nb_input_files || file_idx < 0) {
285 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
289 /* disable some already defined maps */
290 for (i = 0; i < o->nb_stream_maps; i++) {
291 m = &o->stream_maps[i];
292 if (file_idx == m->file_index &&
293 check_stream_specifier(input_files[m->file_index]->ctx,
294 input_files[m->file_index]->ctx->streams[m->stream_index],
295 *p == ':' ? p + 1 : p) > 0)
299 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
300 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
301 *p == ':' ? p + 1 : p) <= 0)
303 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
304 m = &o->stream_maps[o->nb_stream_maps - 1];
306 m->file_index = file_idx;
309 if (sync_file_idx >= 0) {
310 m->sync_file_index = sync_file_idx;
311 m->sync_stream_index = sync_stream_idx;
313 m->sync_file_index = file_idx;
314 m->sync_stream_index = i;
321 av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
323 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
324 "To ignore this, add a trailing '?' to the map.\n", arg);
333 static int opt_attach(void *optctx, const char *opt, const char *arg)
335 OptionsContext *o = optctx;
336 GROW_ARRAY(o->attachments, o->nb_attachments);
337 o->attachments[o->nb_attachments - 1] = arg;
341 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
343 OptionsContext *o = optctx;
348 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
349 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
351 /* muted channel syntax */
352 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
353 if ((n == 1 || n == 3) && m->channel_idx == -1) {
354 m->file_idx = m->stream_idx = -1;
356 m->ofile_idx = m->ostream_idx = -1;
361 n = sscanf(arg, "%d.%d.%d:%d.%d",
362 &m->file_idx, &m->stream_idx, &m->channel_idx,
363 &m->ofile_idx, &m->ostream_idx);
365 if (n != 3 && n != 5) {
366 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
367 "[file.stream.channel|-1][:syncfile:syncstream]\n");
371 if (n != 5) // only file.stream.channel specified
372 m->ofile_idx = m->ostream_idx = -1;
375 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
376 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
380 if (m->stream_idx < 0 ||
381 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
382 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
383 m->file_idx, m->stream_idx);
386 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
387 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
388 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
389 m->file_idx, m->stream_idx);
392 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
393 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
394 m->file_idx, m->stream_idx, m->channel_idx);
400 static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
402 av_free(sdp_filename);
403 sdp_filename = av_strdup(arg);
408 * Parse a metadata specifier passed as 'arg' parameter.
409 * @param arg metadata string to parse
410 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
411 * @param index for type c/p, chapter/program index is written here
412 * @param stream_spec for type s, the stream specifier is written here
414 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
422 if (*(++arg) && *arg != ':') {
423 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
426 *stream_spec = *arg == ':' ? arg + 1 : "";
431 *index = strtol(++arg, NULL, 0);
434 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
441 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
443 AVDictionary **meta_in = NULL;
444 AVDictionary **meta_out = NULL;
446 char type_in, type_out;
447 const char *istream_spec = NULL, *ostream_spec = NULL;
448 int idx_in = 0, idx_out = 0;
450 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
451 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
454 if (type_out == 'g' || !*outspec)
455 o->metadata_global_manual = 1;
456 if (type_out == 's' || !*outspec)
457 o->metadata_streams_manual = 1;
458 if (type_out == 'c' || !*outspec)
459 o->metadata_chapters_manual = 1;
463 if (type_in == 'g' || type_out == 'g')
464 o->metadata_global_manual = 1;
465 if (type_in == 's' || type_out == 's')
466 o->metadata_streams_manual = 1;
467 if (type_in == 'c' || type_out == 'c')
468 o->metadata_chapters_manual = 1;
470 /* ic is NULL when just disabling automatic mappings */
474 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
475 if ((index) < 0 || (index) >= (nb_elems)) {\
476 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
481 #define SET_DICT(type, meta, context, index)\
484 meta = &context->metadata;\
487 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
488 meta = &context->chapters[index]->metadata;\
491 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
492 meta = &context->programs[index]->metadata;\
495 break; /* handled separately below */ \
496 default: av_assert0(0);\
499 SET_DICT(type_in, meta_in, ic, idx_in);
500 SET_DICT(type_out, meta_out, oc, idx_out);
502 /* for input streams choose first matching stream */
503 if (type_in == 's') {
504 for (i = 0; i < ic->nb_streams; i++) {
505 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
506 meta_in = &ic->streams[i]->metadata;
512 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
517 if (type_out == 's') {
518 for (i = 0; i < oc->nb_streams; i++) {
519 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
520 meta_out = &oc->streams[i]->metadata;
521 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
526 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
531 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
533 OptionsContext *o = optctx;
535 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
536 struct tm time = *gmtime((time_t*)&recording_timestamp);
537 if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
539 parse_option(o, "metadata", buf, options);
541 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
542 "tag instead.\n", opt);
546 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
548 const AVCodecDescriptor *desc;
549 const char *codec_string = encoder ? "encoder" : "decoder";
553 avcodec_find_encoder_by_name(name) :
554 avcodec_find_decoder_by_name(name);
556 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
557 codec = encoder ? avcodec_find_encoder(desc->id) :
558 avcodec_find_decoder(desc->id);
560 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
561 codec_string, codec->name, desc->name);
565 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
568 if (codec->type != type) {
569 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
575 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
577 char *codec_name = NULL;
579 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
581 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
582 st->codec->codec_id = codec->id;
585 return avcodec_find_decoder(st->codec->codec_id);
588 /* Add all the streams from the given input file to the global
589 * list of input streams. */
590 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
594 for (i = 0; i < ic->nb_streams; i++) {
595 AVStream *st = ic->streams[i];
596 AVCodecContext *dec = st->codec;
597 InputStream *ist = av_mallocz(sizeof(*ist));
598 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
599 char *codec_tag = NULL;
601 char *discard_str = NULL;
602 const AVOption *discard_opt = av_opt_find(dec, "skip_frame", NULL, 0, 0);
607 GROW_ARRAY(input_streams, nb_input_streams);
608 input_streams[nb_input_streams - 1] = ist;
611 ist->file_index = nb_input_files;
613 st->discard = AVDISCARD_ALL;
616 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
619 MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
621 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
623 uint32_t tag = strtol(codec_tag, &next, 0);
625 tag = AV_RL32(codec_tag);
626 st->codec->codec_tag = tag;
629 ist->dec = choose_decoder(o, ic, st);
630 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
632 ist->reinit_filters = -1;
633 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
635 MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
636 ist->user_set_discard = AVDISCARD_NONE;
637 if (discard_str && av_opt_eval_int(dec, discard_opt, discard_str, &ist->user_set_discard) < 0) {
638 av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
643 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
645 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
647 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
651 ret = avcodec_copy_context(ist->dec_ctx, dec);
653 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
657 switch (dec->codec_type) {
658 case AVMEDIA_TYPE_VIDEO:
660 ist->dec = avcodec_find_decoder(dec->codec_id);
661 if (av_codec_get_lowres(dec)) {
662 dec->flags |= CODEC_FLAG_EMU_EDGE;
665 ist->resample_height = ist->dec_ctx->height;
666 ist->resample_width = ist->dec_ctx->width;
667 ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
669 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
670 if (framerate && av_parse_video_rate(&ist->framerate,
672 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
677 ist->top_field_first = -1;
678 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
680 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
682 if (!strcmp(hwaccel, "none"))
683 ist->hwaccel_id = HWACCEL_NONE;
684 else if (!strcmp(hwaccel, "auto"))
685 ist->hwaccel_id = HWACCEL_AUTO;
688 for (i = 0; hwaccels[i].name; i++) {
689 if (!strcmp(hwaccels[i].name, hwaccel)) {
690 ist->hwaccel_id = hwaccels[i].id;
695 if (!ist->hwaccel_id) {
696 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
698 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
699 for (i = 0; hwaccels[i].name; i++)
700 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
701 av_log(NULL, AV_LOG_FATAL, "\n");
707 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
708 if (hwaccel_device) {
709 ist->hwaccel_device = av_strdup(hwaccel_device);
710 if (!ist->hwaccel_device)
713 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
716 case AVMEDIA_TYPE_AUDIO:
717 ist->guess_layout_max = INT_MAX;
718 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
719 guess_input_channel_layout(ist);
721 ist->resample_sample_fmt = ist->dec_ctx->sample_fmt;
722 ist->resample_sample_rate = ist->dec_ctx->sample_rate;
723 ist->resample_channels = ist->dec_ctx->channels;
724 ist->resample_channel_layout = ist->dec_ctx->channel_layout;
727 case AVMEDIA_TYPE_DATA:
728 case AVMEDIA_TYPE_SUBTITLE: {
729 char *canvas_size = NULL;
731 ist->dec = avcodec_find_decoder(dec->codec_id);
732 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
733 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
735 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
736 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
741 case AVMEDIA_TYPE_ATTACHMENT:
742 case AVMEDIA_TYPE_UNKNOWN:
750 static void assert_file_overwrite(const char *filename)
752 if (file_overwrite && no_file_overwrite) {
753 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
757 if (!file_overwrite) {
758 const char *proto_name = avio_find_protocol_name(filename);
759 if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
760 if (stdin_interaction && !no_file_overwrite) {
761 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
764 signal(SIGINT, SIG_DFL);
766 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
772 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
779 static void dump_attachment(AVStream *st, const char *filename)
782 AVIOContext *out = NULL;
783 AVDictionaryEntry *e;
785 if (!st->codec->extradata_size) {
786 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
787 nb_input_files - 1, st->index);
790 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
793 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
794 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
798 assert_file_overwrite(filename);
800 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
801 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
806 avio_write(out, st->codec->extradata, st->codec->extradata_size);
811 static int open_input_file(OptionsContext *o, const char *filename)
815 AVInputFormat *file_iformat = NULL;
819 AVDictionary *unused_opts = NULL;
820 AVDictionaryEntry *e = NULL;
821 int orig_nb_streams; // number of streams before avformat_find_stream_info
822 char * video_codec_name = NULL;
823 char * audio_codec_name = NULL;
824 char *subtitle_codec_name = NULL;
825 char * data_codec_name = NULL;
826 int scan_all_pmts_set = 0;
829 if (!(file_iformat = av_find_input_format(o->format))) {
830 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
835 if (!strcmp(filename, "-"))
838 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
839 strcmp(filename, "/dev/stdin");
841 /* get default parameters from command line */
842 ic = avformat_alloc_context();
844 print_error(filename, AVERROR(ENOMEM));
847 if (o->nb_audio_sample_rate) {
848 av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
850 if (o->nb_audio_channels) {
851 /* because we set audio_channels based on both the "ac" and
852 * "channel_layout" options, we need to check that the specified
853 * demuxer actually has the "channels" option before setting it */
854 if (file_iformat && file_iformat->priv_class &&
855 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
856 AV_OPT_SEARCH_FAKE_OBJ)) {
857 av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
860 if (o->nb_frame_rates) {
861 /* set the format-level framerate option;
862 * this is important for video grabbers, e.g. x11 */
863 if (file_iformat && file_iformat->priv_class &&
864 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
865 AV_OPT_SEARCH_FAKE_OBJ)) {
866 av_dict_set(&o->g->format_opts, "framerate",
867 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
870 if (o->nb_frame_sizes) {
871 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
873 if (o->nb_frame_pix_fmts)
874 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
876 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
877 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
878 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
879 MATCH_PER_TYPE_OPT(codec_names, str, data_codec_name, ic, "d");
881 ic->video_codec_id = video_codec_name ?
882 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
883 ic->audio_codec_id = audio_codec_name ?
884 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
885 ic->subtitle_codec_id= subtitle_codec_name ?
886 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
887 ic->data_codec_id = data_codec_name ?
888 find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0)->id : AV_CODEC_ID_NONE;
890 if (video_codec_name)
891 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
892 if (audio_codec_name)
893 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
894 if (subtitle_codec_name)
895 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
897 av_format_set_data_codec(ic, find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0));
899 ic->flags |= AVFMT_FLAG_NONBLOCK;
900 ic->interrupt_callback = int_cb;
902 if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
903 av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
904 scan_all_pmts_set = 1;
906 /* open the input file with generic avformat function */
907 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
909 print_error(filename, err);
912 if (scan_all_pmts_set)
913 av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
914 remove_avoptions(&o->g->format_opts, o->g->codec_opts);
915 assert_avoptions(o->g->format_opts);
917 /* apply forced codec ids */
918 for (i = 0; i < ic->nb_streams; i++)
919 choose_decoder(o, ic, ic->streams[i]);
921 /* Set AVCodecContext options for avformat_find_stream_info */
922 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
923 orig_nb_streams = ic->nb_streams;
925 /* If not enough info to get the stream parameters, we decode the
926 first frames to get it. (used in mpeg case for example) */
927 ret = avformat_find_stream_info(ic, opts);
929 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
930 if (ic->nb_streams == 0) {
931 avformat_close_input(&ic);
936 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
937 /* add the stream start time */
938 if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
939 timestamp += ic->start_time;
941 /* if seeking requested, we execute it */
942 if (o->start_time != AV_NOPTS_VALUE) {
943 int64_t seek_timestamp = timestamp;
945 if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
946 int dts_heuristic = 0;
947 for (i=0; i<ic->nb_streams; i++) {
948 AVCodecContext *avctx = ic->streams[i]->codec;
949 if (avctx->has_b_frames)
953 seek_timestamp -= 3*AV_TIME_BASE / 23;
956 ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
958 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
959 filename, (double)timestamp / AV_TIME_BASE);
963 /* update the current parameters so that they match the one of the input stream */
964 add_input_streams(o, ic);
966 /* dump the file content */
967 av_dump_format(ic, nb_input_files, filename, 0);
969 GROW_ARRAY(input_files, nb_input_files);
970 f = av_mallocz(sizeof(*f));
973 input_files[nb_input_files - 1] = f;
976 f->ist_index = nb_input_streams - ic->nb_streams;
977 f->start_time = o->start_time;
978 f->recording_time = o->recording_time;
979 f->input_ts_offset = o->input_ts_offset;
980 f->ts_offset = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
981 f->nb_streams = ic->nb_streams;
982 f->rate_emu = o->rate_emu;
983 f->accurate_seek = o->accurate_seek;
985 f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
988 /* check if all codec options have been used */
989 unused_opts = strip_specifiers(o->g->codec_opts);
990 for (i = f->ist_index; i < nb_input_streams; i++) {
992 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
993 AV_DICT_IGNORE_SUFFIX)))
994 av_dict_set(&unused_opts, e->key, NULL, 0);
998 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
999 const AVClass *class = avcodec_get_class();
1000 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1001 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1002 const AVClass *fclass = avformat_get_class();
1003 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
1004 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1005 if (!option || foption)
1009 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
1010 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1011 "input file #%d (%s) is not a decoding option.\n", e->key,
1012 option->help ? option->help : "", nb_input_files - 1,
1017 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1018 "input file #%d (%s) has not been used for any stream. The most "
1019 "likely reason is either wrong type (e.g. a video option with "
1020 "no video streams) or that it is a private option of some decoder "
1021 "which was not actually used for any stream.\n", e->key,
1022 option->help ? option->help : "", nb_input_files - 1, filename);
1024 av_dict_free(&unused_opts);
1026 for (i = 0; i < o->nb_dump_attachment; i++) {
1029 for (j = 0; j < ic->nb_streams; j++) {
1030 AVStream *st = ic->streams[j];
1032 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
1033 dump_attachment(st, o->dump_attachment[i].u.str);
1037 for (i = 0; i < orig_nb_streams; i++)
1038 av_dict_free(&opts[i]);
1041 input_stream_potentially_available = 1;
1046 static uint8_t *get_line(AVIOContext *s)
1052 if (avio_open_dyn_buf(&line) < 0) {
1053 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
1057 while ((c = avio_r8(s)) && c != '\n')
1060 avio_close_dyn_buf(line, &buf);
1065 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
1068 char filename[1000];
1069 const char *base[3] = { getenv("AVCONV_DATADIR"),
1074 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
1078 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
1079 i != 1 ? "" : "/.avconv", codec_name, preset_name);
1080 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1083 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
1084 i != 1 ? "" : "/.avconv", preset_name);
1085 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1091 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
1093 char *codec_name = NULL;
1095 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
1097 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
1098 NULL, ost->st->codec->codec_type);
1099 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1100 } else if (!strcmp(codec_name, "copy"))
1101 ost->stream_copy = 1;
1103 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
1104 ost->st->codec->codec_id = ost->enc->id;
1108 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
1111 AVStream *st = avformat_new_stream(oc, NULL);
1112 int idx = oc->nb_streams - 1, ret = 0;
1113 char *bsf = NULL, *next, *codec_tag = NULL;
1114 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
1119 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
1123 if (oc->nb_streams - 1 < o->nb_streamid_map)
1124 st->id = o->streamid_map[oc->nb_streams - 1];
1126 GROW_ARRAY(output_streams, nb_output_streams);
1127 if (!(ost = av_mallocz(sizeof(*ost))))
1129 output_streams[nb_output_streams - 1] = ost;
1131 ost->file_index = nb_output_files - 1;
1134 st->codec->codec_type = type;
1135 choose_encoder(o, oc, ost);
1137 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
1138 if (!ost->enc_ctx) {
1139 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
1142 ost->enc_ctx->codec_type = type;
1145 AVIOContext *s = NULL;
1146 char *buf = NULL, *arg = NULL, *preset = NULL;
1148 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1150 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1151 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1154 if (!buf[0] || buf[0] == '#') {
1158 if (!(arg = strchr(buf, '='))) {
1159 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1163 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1165 } while (!s->eof_reached);
1169 av_log(NULL, AV_LOG_FATAL,
1170 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1171 preset, ost->file_index, ost->index);
1175 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1178 ost->max_frames = INT64_MAX;
1179 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1180 for (i = 0; i<o->nb_max_frames; i++) {
1181 char *p = o->max_frames[i].specifier;
1182 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1183 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1188 ost->copy_prior_start = -1;
1189 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1191 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1194 if (next = strchr(bsf, ','))
1196 if (arg = strchr(bsf, '='))
1198 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1199 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1203 bsfc_prev->next = bsfc;
1205 ost->bitstream_filters = bsfc;
1206 av_dict_set(&ost->bsf_args, bsfc->filter->name, arg, 0);
1212 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1214 uint32_t tag = strtol(codec_tag, &next, 0);
1216 tag = AV_RL32(codec_tag);
1217 ost->st->codec->codec_tag =
1218 ost->enc_ctx->codec_tag = tag;
1221 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1223 ost->enc_ctx->flags |= CODEC_FLAG_QSCALE;
1224 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1227 MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
1228 ost->disposition = av_strdup(ost->disposition);
1230 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1231 ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
1233 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1235 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1236 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1237 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1239 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1241 ost->source_index = source_index;
1242 if (source_index >= 0) {
1243 ost->sync_ist = input_streams[source_index];
1244 input_streams[source_index]->discard = 0;
1245 input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
1247 ost->last_mux_dts = AV_NOPTS_VALUE;
1252 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1255 const char *p = str;
1262 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1269 /* read file contents into a string */
1270 static uint8_t *read_file(const char *filename)
1272 AVIOContext *pb = NULL;
1273 AVIOContext *dyn_buf = NULL;
1274 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1275 uint8_t buf[1024], *str;
1278 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1282 ret = avio_open_dyn_buf(&dyn_buf);
1287 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1288 avio_write(dyn_buf, buf, ret);
1289 avio_w8(dyn_buf, 0);
1292 ret = avio_close_dyn_buf(dyn_buf, &str);
1298 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1301 AVStream *st = ost->st;
1303 if (ost->filters_script && ost->filters) {
1304 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1305 "output stream #%d:%d.\n", nb_output_files, st->index);
1309 if (ost->filters_script)
1310 return read_file(ost->filters_script);
1311 else if (ost->filters)
1312 return av_strdup(ost->filters);
1314 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1318 static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1319 const OutputStream *ost, enum AVMediaType type)
1321 if (ost->filters_script || ost->filters) {
1322 av_log(NULL, AV_LOG_ERROR,
1323 "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
1324 "Filtering and streamcopy cannot be used together.\n",
1325 ost->filters ? "Filtergraph" : "Filtergraph script",
1326 ost->filters ? ost->filters : ost->filters_script,
1327 av_get_media_type_string(type), ost->file_index, ost->index);
1332 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1336 AVCodecContext *video_enc;
1337 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1339 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1341 video_enc = ost->enc_ctx;
1343 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1344 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1345 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1348 if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
1349 av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
1351 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1352 if (frame_aspect_ratio) {
1354 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1355 q.num <= 0 || q.den <= 0) {
1356 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1359 ost->frame_aspect_ratio = q;
1362 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1363 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1365 if (!ost->stream_copy) {
1366 const char *p = NULL;
1367 char *frame_size = NULL;
1368 char *frame_pix_fmt = NULL;
1369 char *intra_matrix = NULL, *inter_matrix = NULL;
1370 char *chroma_intra_matrix = NULL;
1374 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1375 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1376 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1380 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1381 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1382 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1383 ost->keep_pix_fmt = 1;
1384 if (!*++frame_pix_fmt)
1385 frame_pix_fmt = NULL;
1387 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1388 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1391 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1394 video_enc->gop_size = 0;
1395 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1397 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1398 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1401 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1403 MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
1404 if (chroma_intra_matrix) {
1405 uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
1407 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1410 av_codec_set_chroma_intra_matrix(video_enc, p);
1411 parse_matrix_coeffs(p, chroma_intra_matrix);
1413 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1415 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1416 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1419 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1422 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1423 for (i = 0; p; i++) {
1425 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1427 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1430 video_enc->rc_override =
1431 av_realloc_array(video_enc->rc_override,
1432 i + 1, sizeof(RcOverride));
1433 if (!video_enc->rc_override) {
1434 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
1437 video_enc->rc_override[i].start_frame = start;
1438 video_enc->rc_override[i].end_frame = end;
1440 video_enc->rc_override[i].qscale = q;
1441 video_enc->rc_override[i].quality_factor = 1.0;
1444 video_enc->rc_override[i].qscale = 0;
1445 video_enc->rc_override[i].quality_factor = -q/100.0;
1450 video_enc->rc_override_count = i;
1453 video_enc->flags|= CODEC_FLAG_PSNR;
1456 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1459 video_enc->flags |= CODEC_FLAG_PASS1;
1460 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
1463 video_enc->flags |= CODEC_FLAG_PASS2;
1464 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
1468 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1469 if (ost->logfile_prefix &&
1470 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1474 char logfilename[1024];
1477 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1478 ost->logfile_prefix ? ost->logfile_prefix :
1479 DEFAULT_PASS_LOGFILENAME_PREFIX,
1481 if (!strcmp(ost->enc->name, "libx264")) {
1482 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1484 if (video_enc->flags & CODEC_FLAG_PASS2) {
1485 char *logbuffer = read_file(logfilename);
1488 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1492 video_enc->stats_in = logbuffer;
1494 if (video_enc->flags & CODEC_FLAG_PASS1) {
1495 f = av_fopen_utf8(logfilename, "wb");
1497 av_log(NULL, AV_LOG_FATAL,
1498 "Cannot write log file '%s' for pass-1 encoding: %s\n",
1499 logfilename, strerror(errno));
1507 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1508 if (ost->forced_keyframes)
1509 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1511 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1513 ost->top_field_first = -1;
1514 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1517 ost->avfilter = get_ost_filters(o, oc, ost);
1521 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1524 if (ost->stream_copy)
1525 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1530 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1535 AVCodecContext *audio_enc;
1537 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1540 audio_enc = ost->enc_ctx;
1541 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1543 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1544 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1546 if (!ost->stream_copy) {
1547 char *sample_fmt = NULL;
1549 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1551 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1553 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1554 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1558 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1560 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1561 ost->apad = av_strdup(ost->apad);
1563 ost->avfilter = get_ost_filters(o, oc, ost);
1567 /* check for channel mapping for this audio stream */
1568 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1569 AudioChannelMap *map = &o->audio_channel_maps[n];
1570 if ((map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1571 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1574 if (map->channel_idx == -1) {
1576 } else if (ost->source_index < 0) {
1577 av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
1578 ost->file_index, ost->st->index);
1581 ist = input_streams[ost->source_index];
1584 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
1585 if (av_reallocp_array(&ost->audio_channels_map,
1586 ost->audio_channels_mapped + 1,
1587 sizeof(*ost->audio_channels_map)
1591 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1597 if (ost->stream_copy)
1598 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1603 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1607 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1608 if (!ost->stream_copy) {
1609 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1616 static OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1620 ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
1621 if (!ost->stream_copy) {
1622 av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
1629 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1631 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1632 ost->stream_copy = 1;
1637 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1641 AVCodecContext *subtitle_enc;
1643 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1645 subtitle_enc = ost->enc_ctx;
1647 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1649 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1651 if (!ost->stream_copy) {
1652 char *frame_size = NULL;
1654 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1655 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1656 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1664 /* arg format is "output-stream-index:streamid-value". */
1665 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1667 OptionsContext *o = optctx;
1672 av_strlcpy(idx_str, arg, sizeof(idx_str));
1673 p = strchr(idx_str, ':');
1675 av_log(NULL, AV_LOG_FATAL,
1676 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1681 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1682 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1683 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1687 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1689 AVFormatContext *is = ifile->ctx;
1690 AVFormatContext *os = ofile->ctx;
1694 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1696 return AVERROR(ENOMEM);
1699 for (i = 0; i < is->nb_chapters; i++) {
1700 AVChapter *in_ch = is->chapters[i], *out_ch;
1701 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1702 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1703 AV_TIME_BASE_Q, in_ch->time_base);
1704 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1705 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1708 if (in_ch->end < ts_off)
1710 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1713 out_ch = av_mallocz(sizeof(AVChapter));
1715 return AVERROR(ENOMEM);
1717 out_ch->id = in_ch->id;
1718 out_ch->time_base = in_ch->time_base;
1719 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1720 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1723 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1725 os->chapters[os->nb_chapters++] = out_ch;
1730 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1733 AVFormatContext *ic = avformat_alloc_context();
1735 ic->interrupt_callback = int_cb;
1736 err = avformat_open_input(&ic, filename, NULL, NULL);
1739 /* copy stream format */
1740 for(i=0;i<ic->nb_streams;i++) {
1744 const char *enc_config;
1746 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1748 av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codec->codec_id);
1749 return AVERROR(EINVAL);
1751 if (codec->type == AVMEDIA_TYPE_AUDIO)
1752 opt_audio_codec(o, "c:a", codec->name);
1753 else if (codec->type == AVMEDIA_TYPE_VIDEO)
1754 opt_video_codec(o, "c:v", codec->name);
1755 ost = new_output_stream(o, s, codec->type, -1);
1758 avcodec_get_context_defaults3(st->codec, codec);
1759 enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
1761 AVDictionary *opts = NULL;
1762 av_dict_parse_string(&opts, enc_config, "=", ",", 0);
1763 av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
1764 av_dict_free(&opts);
1767 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1768 choose_sample_fmt(st, codec);
1769 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1770 choose_pixel_fmt(st, st->codec, codec, st->codec->pix_fmt);
1771 avcodec_copy_context(ost->enc_ctx, st->codec);
1773 av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
1776 avformat_close_input(&ic);
1780 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1781 AVFormatContext *oc)
1785 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1786 ofilter->out_tmp->pad_idx)) {
1787 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1788 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1790 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1795 ost->source_index = -1;
1796 ost->filter = ofilter;
1800 if (ost->stream_copy) {
1801 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1802 "which is fed from a complex filtergraph. Filtering and streamcopy "
1803 "cannot be used together.\n", ost->file_index, ost->index);
1807 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1808 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1809 av_log(NULL, AV_LOG_ERROR,
1810 "%s '%s' was specified through the %s option "
1811 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1812 "%s and -filter_complex cannot be used together for the same stream.\n",
1813 ost->filters ? "Filtergraph" : "Filtergraph script",
1814 ost->filters ? ost->filters : ost->filters_script,
1815 opt, ost->file_index, ost->index, opt);
1819 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1820 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1823 avfilter_inout_free(&ofilter->out_tmp);
1826 static int configure_complex_filters(void)
1830 for (i = 0; i < nb_filtergraphs; i++)
1831 if (!filtergraphs[i]->graph &&
1832 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1837 static int open_output_file(OptionsContext *o, const char *filename)
1839 AVFormatContext *oc;
1841 AVOutputFormat *file_oformat;
1845 AVDictionary *unused_opts = NULL;
1846 AVDictionaryEntry *e = NULL;
1848 if (configure_complex_filters() < 0) {
1849 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1853 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1854 o->stop_time = INT64_MAX;
1855 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1858 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1859 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1860 if (o->stop_time <= start_time) {
1861 av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
1864 o->recording_time = o->stop_time - start_time;
1868 GROW_ARRAY(output_files, nb_output_files);
1869 of = av_mallocz(sizeof(*of));
1872 output_files[nb_output_files - 1] = of;
1874 of->ost_index = nb_output_streams;
1875 of->recording_time = o->recording_time;
1876 of->start_time = o->start_time;
1877 of->limit_filesize = o->limit_filesize;
1878 of->shortest = o->shortest;
1879 av_dict_copy(&of->opts, o->g->format_opts, 0);
1881 if (!strcmp(filename, "-"))
1884 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1886 print_error(filename, err);
1891 if (o->recording_time != INT64_MAX)
1892 oc->duration = o->recording_time;
1894 file_oformat= oc->oformat;
1895 oc->interrupt_callback = int_cb;
1897 /* create streams for all unlabeled output pads */
1898 for (i = 0; i < nb_filtergraphs; i++) {
1899 FilterGraph *fg = filtergraphs[i];
1900 for (j = 0; j < fg->nb_outputs; j++) {
1901 OutputFilter *ofilter = fg->outputs[j];
1903 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1906 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1907 ofilter->out_tmp->pad_idx)) {
1908 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1909 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1910 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1912 init_output_filter(ofilter, o, oc);
1916 /* ffserver seeking with date=... needs a date reference */
1917 if (!strcmp(file_oformat->name, "ffm") &&
1918 av_strstart(filename, "http:", NULL)) {
1919 int err = parse_option(o, "metadata", "creation_time=now", options);
1921 print_error(filename, err);
1926 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1927 av_strstart(filename, "http:", NULL)) {
1929 /* special case for files sent to ffserver: we get the stream
1930 parameters from ffserver */
1931 int err = read_ffserver_streams(o, oc, filename);
1933 print_error(filename, err);
1936 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1937 ost = output_streams[j];
1938 for (i = 0; i < nb_input_streams; i++) {
1939 ist = input_streams[i];
1940 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1942 ost->source_index= i;
1943 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1944 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1946 ist->st->discard = ist->user_set_discard;
1951 av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codec->codec_type));
1955 } else if (!o->nb_stream_maps) {
1956 char *subtitle_codec_name = NULL;
1957 /* pick the "best" stream of each type */
1959 /* video: highest resolution */
1960 if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
1961 int area = 0, idx = -1;
1962 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1963 for (i = 0; i < nb_input_streams; i++) {
1965 ist = input_streams[i];
1966 new_area = ist->st->codec->width * ist->st->codec->height + 100000000*!!ist->st->codec_info_nb_frames;
1967 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1969 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1971 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1978 new_video_stream(o, oc, idx);
1981 /* audio: most channels */
1982 if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
1983 int channels = 0, idx = -1;
1984 for (i = 0; i < nb_input_streams; i++) {
1985 ist = input_streams[i];
1986 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1987 ist->st->codec->channels > channels) {
1988 channels = ist->st->codec->channels;
1993 new_audio_stream(o, oc, idx);
1996 /* subtitles: pick first */
1997 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1998 if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
1999 for (i = 0; i < nb_input_streams; i++)
2000 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
2001 AVCodecDescriptor const *input_descriptor =
2002 avcodec_descriptor_get(input_streams[i]->st->codec->codec_id);
2003 AVCodecDescriptor const *output_descriptor = NULL;
2004 AVCodec const *output_codec =
2005 avcodec_find_encoder(oc->oformat->subtitle_codec);
2006 int input_props = 0, output_props = 0;
2008 output_descriptor = avcodec_descriptor_get(output_codec->id);
2009 if (input_descriptor)
2010 input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
2011 if (output_descriptor)
2012 output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
2013 if (subtitle_codec_name ||
2014 input_props & output_props ||
2015 // Map dvb teletext which has neither property to any output subtitle encoder
2016 input_descriptor && output_descriptor &&
2017 (!input_descriptor->props ||
2018 !output_descriptor->props)) {
2019 new_subtitle_stream(o, oc, i);
2024 /* Data only if codec id match */
2025 if (!o->data_disable ) {
2026 enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
2027 for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
2028 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_DATA
2029 && input_streams[i]->st->codec->codec_id == codec_id )
2030 new_data_stream(o, oc, i);
2034 for (i = 0; i < o->nb_stream_maps; i++) {
2035 StreamMap *map = &o->stream_maps[i];
2040 if (map->linklabel) {
2042 OutputFilter *ofilter = NULL;
2045 for (j = 0; j < nb_filtergraphs; j++) {
2046 fg = filtergraphs[j];
2047 for (k = 0; k < fg->nb_outputs; k++) {
2048 AVFilterInOut *out = fg->outputs[k]->out_tmp;
2049 if (out && !strcmp(out->name, map->linklabel)) {
2050 ofilter = fg->outputs[k];
2057 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
2058 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
2061 init_output_filter(ofilter, o, oc);
2063 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
2065 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
2066 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
2068 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
2070 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
2072 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
2076 switch (ist->st->codec->codec_type) {
2077 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
2078 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
2079 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
2080 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
2081 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
2082 case AVMEDIA_TYPE_UNKNOWN:
2083 if (copy_unknown_streams) {
2084 ost = new_unknown_stream (o, oc, src_idx);
2088 av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
2089 "Cannot map stream #%d:%d - unsupported type.\n",
2090 map->file_index, map->stream_index);
2091 if (!ignore_unknown_streams) {
2092 av_log(NULL, AV_LOG_FATAL,
2093 "If you want unsupported types ignored instead "
2094 "of failing, please use the -ignore_unknown option\n"
2095 "If you want them copied, please use -copy_unknown\n");
2100 ost->sync_ist = input_streams[ input_files[map->sync_file_index]->ist_index
2101 + map->sync_stream_index];
2106 /* handle attached files */
2107 for (i = 0; i < o->nb_attachments; i++) {
2109 uint8_t *attachment;
2113 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
2114 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
2118 if ((len = avio_size(pb)) <= 0) {
2119 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
2123 if (!(attachment = av_malloc(len))) {
2124 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
2128 avio_read(pb, attachment, len);
2130 ost = new_attachment_stream(o, oc, -1);
2131 ost->stream_copy = 1;
2132 ost->attachment_filename = o->attachments[i];
2134 ost->st->codec->extradata = attachment;
2135 ost->st->codec->extradata_size = len;
2137 p = strrchr(o->attachments[i], '/');
2138 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
2142 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
2143 AVDictionaryEntry *e;
2144 ost = output_streams[i];
2146 if ((ost->stream_copy || ost->attachment_filename)
2147 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
2148 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
2149 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
2153 /* check if all codec options have been used */
2154 unused_opts = strip_specifiers(o->g->codec_opts);
2155 for (i = of->ost_index; i < nb_output_streams; i++) {
2157 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
2158 AV_DICT_IGNORE_SUFFIX)))
2159 av_dict_set(&unused_opts, e->key, NULL, 0);
2163 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
2164 const AVClass *class = avcodec_get_class();
2165 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
2166 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2167 const AVClass *fclass = avformat_get_class();
2168 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
2169 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2170 if (!option || foption)
2174 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
2175 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
2176 "output file #%d (%s) is not an encoding option.\n", e->key,
2177 option->help ? option->help : "", nb_output_files - 1,
2182 // gop_timecode is injected by generic code but not always used
2183 if (!strcmp(e->key, "gop_timecode"))
2186 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
2187 "output file #%d (%s) has not been used for any stream. The most "
2188 "likely reason is either wrong type (e.g. a video option with "
2189 "no video streams) or that it is a private option of some encoder "
2190 "which was not actually used for any stream.\n", e->key,
2191 option->help ? option->help : "", nb_output_files - 1, filename);
2193 av_dict_free(&unused_opts);
2195 /* set the encoding/decoding_needed flags */
2196 for (i = of->ost_index; i < nb_output_streams; i++) {
2197 OutputStream *ost = output_streams[i];
2199 ost->encoding_needed = !ost->stream_copy;
2200 if (ost->encoding_needed && ost->source_index >= 0) {
2201 InputStream *ist = input_streams[ost->source_index];
2202 ist->decoding_needed |= DECODING_FOR_OST;
2206 /* check filename in case of an image number is expected */
2207 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2208 if (!av_filename_number_test(oc->filename)) {
2209 print_error(oc->filename, AVERROR(EINVAL));
2214 if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
2215 av_log(NULL, AV_LOG_ERROR,
2216 "No input streams but output needs an input stream\n");
2220 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2221 /* test if it already exists to avoid losing precious files */
2222 assert_file_overwrite(filename);
2225 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
2226 &oc->interrupt_callback,
2228 print_error(filename, err);
2231 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
2232 assert_file_overwrite(filename);
2234 if (o->mux_preload) {
2235 av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
2237 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2240 for (i = 0; i < o->nb_metadata_map; i++) {
2242 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2244 if (in_file_index >= nb_input_files) {
2245 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2248 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2249 in_file_index >= 0 ?
2250 input_files[in_file_index]->ctx : NULL, o);
2254 if (o->chapters_input_file >= nb_input_files) {
2255 if (o->chapters_input_file == INT_MAX) {
2256 /* copy chapters from the first input file that has them*/
2257 o->chapters_input_file = -1;
2258 for (i = 0; i < nb_input_files; i++)
2259 if (input_files[i]->ctx->nb_chapters) {
2260 o->chapters_input_file = i;
2264 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2265 o->chapters_input_file);
2269 if (o->chapters_input_file >= 0)
2270 copy_chapters(input_files[o->chapters_input_file], of,
2271 !o->metadata_chapters_manual);
2273 /* copy global metadata by default */
2274 if (!o->metadata_global_manual && nb_input_files){
2275 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2276 AV_DICT_DONT_OVERWRITE);
2277 if(o->recording_time != INT64_MAX)
2278 av_dict_set(&oc->metadata, "duration", NULL, 0);
2279 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2281 if (!o->metadata_streams_manual)
2282 for (i = of->ost_index; i < nb_output_streams; i++) {
2284 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2286 ist = input_streams[output_streams[i]->source_index];
2287 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2288 if (!output_streams[i]->stream_copy) {
2289 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
2290 if (ist->autorotate)
2291 av_dict_set(&output_streams[i]->st->metadata, "rotate", NULL, 0);
2295 /* process manually set metadata */
2296 for (i = 0; i < o->nb_metadata; i++) {
2299 const char *stream_spec;
2300 int index = 0, j, ret = 0;
2303 val = strchr(o->metadata[i].u.str, '=');
2305 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2306 o->metadata[i].u.str);
2311 if (!strcmp(o->metadata[i].u.str, "creation_time") &&
2312 !strcmp(val, "now")) {
2313 time_t now = time(0);
2314 struct tm *ptm, tmbuf;
2315 ptm = localtime_r(&now, &tmbuf);
2317 if (strftime(now_time, sizeof(now_time), "%Y-%m-%d %H:%M:%S", ptm))
2322 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2324 for (j = 0; j < oc->nb_streams; j++) {
2325 ost = output_streams[nb_output_streams - oc->nb_streams + j];
2326 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2327 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2328 if (!strcmp(o->metadata[i].u.str, "rotate")) {
2329 ost->rotate_overridden = 1;
2341 if (index < 0 || index >= oc->nb_chapters) {
2342 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2345 m = &oc->chapters[index]->metadata;
2348 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2351 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2358 static int opt_target(void *optctx, const char *opt, const char *arg)
2360 OptionsContext *o = optctx;
2361 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2362 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2364 if (!strncmp(arg, "pal-", 4)) {
2367 } else if (!strncmp(arg, "ntsc-", 5)) {
2370 } else if (!strncmp(arg, "film-", 5)) {
2374 /* Try to determine PAL/NTSC by peeking in the input files */
2375 if (nb_input_files) {
2377 for (j = 0; j < nb_input_files; j++) {
2378 for (i = 0; i < input_files[j]->nb_streams; i++) {
2379 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2380 if (c->codec_type != AVMEDIA_TYPE_VIDEO ||
2383 fr = c->time_base.den * 1000 / c->time_base.num;
2387 } else if ((fr == 29970) || (fr == 23976)) {
2392 if (norm != UNKNOWN)
2396 if (norm != UNKNOWN)
2397 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2400 if (norm == UNKNOWN) {
2401 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2402 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2403 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2407 if (!strcmp(arg, "vcd")) {
2408 opt_video_codec(o, "c:v", "mpeg1video");
2409 opt_audio_codec(o, "c:a", "mp2");
2410 parse_option(o, "f", "vcd", options);
2412 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2413 parse_option(o, "r", frame_rates[norm], options);
2414 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2416 opt_default(NULL, "b:v", "1150000");
2417 opt_default(NULL, "maxrate:v", "1150000");
2418 opt_default(NULL, "minrate:v", "1150000");
2419 opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
2421 opt_default(NULL, "b:a", "224000");
2422 parse_option(o, "ar", "44100", options);
2423 parse_option(o, "ac", "2", options);
2425 opt_default(NULL, "packetsize", "2324");
2426 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
2428 /* We have to offset the PTS, so that it is consistent with the SCR.
2429 SCR starts at 36000, but the first two packs contain only padding
2430 and the first pack from the other stream, respectively, may also have
2431 been written before.
2432 So the real data starts at SCR 36000+3*1200. */
2433 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2434 } else if (!strcmp(arg, "svcd")) {
2436 opt_video_codec(o, "c:v", "mpeg2video");
2437 opt_audio_codec(o, "c:a", "mp2");
2438 parse_option(o, "f", "svcd", options);
2440 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2441 parse_option(o, "r", frame_rates[norm], options);
2442 parse_option(o, "pix_fmt", "yuv420p", options);
2443 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2445 opt_default(NULL, "b:v", "2040000");
2446 opt_default(NULL, "maxrate:v", "2516000");
2447 opt_default(NULL, "minrate:v", "0"); // 1145000;
2448 opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
2449 opt_default(NULL, "scan_offset", "1");
2451 opt_default(NULL, "b:a", "224000");
2452 parse_option(o, "ar", "44100", options);
2454 opt_default(NULL, "packetsize", "2324");
2456 } else if (!strcmp(arg, "dvd")) {
2458 opt_video_codec(o, "c:v", "mpeg2video");
2459 opt_audio_codec(o, "c:a", "ac3");
2460 parse_option(o, "f", "dvd", options);
2462 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2463 parse_option(o, "r", frame_rates[norm], options);
2464 parse_option(o, "pix_fmt", "yuv420p", options);
2465 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2467 opt_default(NULL, "b:v", "6000000");
2468 opt_default(NULL, "maxrate:v", "9000000");
2469 opt_default(NULL, "minrate:v", "0"); // 1500000;
2470 opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
2472 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2473 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2475 opt_default(NULL, "b:a", "448000");
2476 parse_option(o, "ar", "48000", options);
2478 } else if (!strncmp(arg, "dv", 2)) {
2480 parse_option(o, "f", "dv", options);
2482 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2483 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2484 norm == PAL ? "yuv420p" : "yuv411p", options);
2485 parse_option(o, "r", frame_rates[norm], options);
2487 parse_option(o, "ar", "48000", options);
2488 parse_option(o, "ac", "2", options);
2491 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2492 return AVERROR(EINVAL);
2495 av_dict_copy(&o->g->codec_opts, codec_opts, AV_DICT_DONT_OVERWRITE);
2496 av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
2501 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2503 av_free (vstats_filename);
2504 vstats_filename = av_strdup (arg);
2508 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2511 time_t today2 = time(NULL);
2512 struct tm *today = localtime(&today2);
2514 if (!today) { // maybe tomorrow
2515 av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
2519 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2521 return opt_vstats_file(NULL, opt, filename);
2524 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2526 OptionsContext *o = optctx;
2527 return parse_option(o, "frames:v", arg, options);
2530 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2532 OptionsContext *o = optctx;
2533 return parse_option(o, "frames:a", arg, options);
2536 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2538 OptionsContext *o = optctx;
2539 return parse_option(o, "frames:d", arg, options);
2542 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2545 AVDictionary *cbak = codec_opts;
2546 AVDictionary *fbak = format_opts;
2550 ret = opt_default(NULL, opt, arg);
2552 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2553 av_dict_copy(&o->g->format_opts, format_opts, 0);
2554 av_dict_free(&codec_opts);
2555 av_dict_free(&format_opts);
2562 static int opt_preset(void *optctx, const char *opt, const char *arg)
2564 OptionsContext *o = optctx;
2566 char filename[1000], line[1000], tmp_line[1000];
2567 const char *codec_name = NULL;
2571 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2573 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2574 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2575 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2577 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2581 while (fgets(line, sizeof(line), f)) {
2582 char *key = tmp_line, *value, *endptr;
2584 if (strcspn(line, "#\n\r") == 0)
2586 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2587 if (!av_strtok(key, "=", &value) ||
2588 !av_strtok(value, "\r\n", &endptr)) {
2589 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2592 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2594 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2595 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2596 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2597 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2598 else if (opt_default_new(o, key, value) < 0) {
2599 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2600 filename, line, key, value);
2610 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2612 OptionsContext *o = optctx;
2613 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2614 int ret = parse_option(o, s, arg, options);
2619 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2621 OptionsContext *o = optctx;
2623 if(!strcmp(opt, "ab")){
2624 av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
2626 } else if(!strcmp(opt, "b")){
2627 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2628 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2631 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2635 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2637 OptionsContext *o = optctx;
2640 if(!strcmp(opt, "qscale")){
2641 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2642 return parse_option(o, "q:v", arg, options);
2644 s = av_asprintf("q%s", opt + 6);
2645 ret = parse_option(o, s, arg, options);
2650 static int opt_profile(void *optctx, const char *opt, const char *arg)
2652 OptionsContext *o = optctx;
2653 if(!strcmp(opt, "profile")){
2654 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2655 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2658 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2662 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2664 OptionsContext *o = optctx;
2665 return parse_option(o, "filter:v", arg, options);
2668 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2670 OptionsContext *o = optctx;
2671 return parse_option(o, "filter:a", arg, options);
2674 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2676 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2677 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2678 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2679 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2681 if (video_sync_method == VSYNC_AUTO)
2682 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2686 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2688 OptionsContext *o = optctx;
2689 char *tcr = av_asprintf("timecode=%s", arg);
2690 int ret = parse_option(o, "metadata:g", tcr, options);
2692 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2697 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2699 OptionsContext *o = optctx;
2700 char layout_str[32];
2703 int ret, channels, ac_str_size;
2706 layout = av_get_channel_layout(arg);
2708 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2709 return AVERROR(EINVAL);
2711 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2712 ret = opt_default_new(o, opt, layout_str);
2716 /* set 'ac' option based on channel layout */
2717 channels = av_get_channel_layout_nb_channels(layout);
2718 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2719 stream_str = strchr(opt, ':');
2720 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2721 ac_str = av_mallocz(ac_str_size);
2723 return AVERROR(ENOMEM);
2724 av_strlcpy(ac_str, "ac", 3);
2726 av_strlcat(ac_str, stream_str, ac_str_size);
2727 ret = parse_option(o, ac_str, layout_str, options);
2733 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2735 OptionsContext *o = optctx;
2736 return parse_option(o, "q:a", arg, options);
2739 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2741 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2742 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2743 return AVERROR(ENOMEM);
2744 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2745 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2746 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2747 return AVERROR(ENOMEM);
2749 input_stream_potentially_available = 1;
2754 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2756 uint8_t *graph_desc = read_file(arg);
2758 return AVERROR(EINVAL);
2760 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2761 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2762 return AVERROR(ENOMEM);
2763 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2764 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2766 input_stream_potentially_available = 1;
2771 void show_help_default(const char *opt, const char *arg)
2773 /* per-file options have at least one of those set */
2774 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2775 int show_advanced = 0, show_avoptions = 0;
2778 if (!strcmp(opt, "long"))
2780 else if (!strcmp(opt, "full"))
2781 show_advanced = show_avoptions = 1;
2783 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2788 printf("Getting help:\n"
2789 " -h -- print basic options\n"
2790 " -h long -- print more options\n"
2791 " -h full -- print all options (including all format and codec specific options, very long)\n"
2792 " See man %s for detailed description of the options.\n"
2793 "\n", program_name);
2795 show_help_options(options, "Print help / information / capabilities:",
2798 show_help_options(options, "Global options (affect whole program "
2799 "instead of just one file:",
2800 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2802 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2803 per_file | OPT_EXIT, 0);
2805 show_help_options(options, "Per-file main options:", 0,
2806 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2807 OPT_EXIT, per_file);
2809 show_help_options(options, "Advanced per-file options:",
2810 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2812 show_help_options(options, "Video options:",
2813 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2815 show_help_options(options, "Advanced Video options:",
2816 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2818 show_help_options(options, "Audio options:",
2819 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2821 show_help_options(options, "Advanced Audio options:",
2822 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2823 show_help_options(options, "Subtitle options:",
2824 OPT_SUBTITLE, 0, 0);
2827 if (show_avoptions) {
2828 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2829 show_help_children(avcodec_get_class(), flags);
2830 show_help_children(avformat_get_class(), flags);
2832 show_help_children(sws_get_class(), flags);
2834 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2835 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2839 void show_usage(void)
2841 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2842 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2843 av_log(NULL, AV_LOG_INFO, "\n");
2851 static const OptionGroupDef groups[] = {
2852 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2853 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2856 static int open_files(OptionGroupList *l, const char *inout,
2857 int (*open_file)(OptionsContext*, const char*))
2861 for (i = 0; i < l->nb_groups; i++) {
2862 OptionGroup *g = &l->groups[i];
2868 ret = parse_optgroup(&o, g);
2870 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2871 "%s.\n", inout, g->arg);
2875 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2876 ret = open_file(&o, g->arg);
2879 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2883 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2889 int ffmpeg_parse_options(int argc, char **argv)
2891 OptionParseContext octx;
2895 memset(&octx, 0, sizeof(octx));
2897 /* split the commandline into an internal representation */
2898 ret = split_commandline(&octx, argc, argv, options, groups,
2899 FF_ARRAY_ELEMS(groups));
2901 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2905 /* apply global options */
2906 ret = parse_optgroup(NULL, &octx.global_opts);
2908 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2912 /* open input files */
2913 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2915 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2919 /* open output files */
2920 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2922 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2927 uninit_parse_context(&octx);
2929 av_strerror(ret, error, sizeof(error));
2930 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2935 static int opt_progress(void *optctx, const char *opt, const char *arg)
2937 AVIOContext *avio = NULL;
2940 if (!strcmp(arg, "-"))
2942 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2944 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2945 arg, av_err2str(ret));
2948 progress_avio = avio;
2952 #define OFFSET(x) offsetof(OptionsContext, x)
2953 const OptionDef options[] = {
2955 #include "cmdutils_common_opts.h"
2956 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2957 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2958 "force format", "fmt" },
2959 { "y", OPT_BOOL, { &file_overwrite },
2960 "overwrite output files" },
2961 { "n", OPT_BOOL, { &no_file_overwrite },
2962 "never overwrite output files" },
2963 { "ignore_unknown", OPT_BOOL, { &ignore_unknown_streams },
2964 "Ignore unknown stream types" },
2965 { "copy_unknown", OPT_BOOL | OPT_EXPERT, { ©_unknown_streams },
2966 "Copy unknown stream types" },
2967 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2968 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2969 "codec name", "codec" },
2970 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2971 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2972 "codec name", "codec" },
2973 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2974 OPT_OUTPUT, { .off = OFFSET(presets) },
2975 "preset name", "preset" },
2976 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2977 OPT_OUTPUT, { .func_arg = opt_map },
2978 "set input stream mapping",
2979 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2980 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2981 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2982 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2983 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2984 "set metadata information of outfile from infile",
2985 "outfile[,metadata]:infile[,metadata]" },
2986 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2987 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2988 "set chapters mapping", "input_file_index" },
2989 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2990 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2991 "record or transcode \"duration\" seconds of audio/video",
2993 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2994 "record or transcode stop time", "time_stop" },
2995 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2996 "set the limit file size in bytes", "limit_size" },
2997 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2998 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2999 "set the start time offset", "time_off" },
3000 { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
3001 OPT_INPUT, { .off = OFFSET(seek_timestamp) },
3002 "enable/disable seeking by timestamp with -ss" },
3003 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
3004 OPT_INPUT, { .off = OFFSET(accurate_seek) },
3005 "enable/disable accurate seeking with -ss" },
3006 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
3007 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
3008 "set the input ts offset", "time_off" },
3009 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
3010 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
3011 "set the input ts scale", "scale" },
3012 { "timestamp", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_recording_timestamp },
3013 "set the recording timestamp ('now' to set the current time)", "time" },
3014 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
3015 "add metadata", "string=string" },
3016 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
3017 OPT_OUTPUT, { .func_arg = opt_data_frames },
3018 "set the number of data frames to output", "number" },
3019 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
3020 "add timings for benchmarking" },
3021 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
3022 "add timings for each task" },
3023 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
3024 "write program-readable progress information", "url" },
3025 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
3026 "enable or disable interaction on standard input" },
3027 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
3028 "set max runtime in seconds", "limit" },
3029 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
3030 "dump each input packet" },
3031 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
3032 "when dumping packets, also dump the payload" },
3033 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
3034 OPT_INPUT, { .off = OFFSET(rate_emu) },
3035 "read input at native frame rate", "" },
3036 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
3037 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
3038 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
3039 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
3040 "video sync method", "" },
3041 { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &frame_drop_threshold },
3042 "frame drop threshold", "" },
3043 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
3044 "audio sync method", "" },
3045 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
3046 "audio drift threshold", "threshold" },
3047 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
3048 "copy timestamps" },
3049 { "start_at_zero", OPT_BOOL | OPT_EXPERT, { &start_at_zero },
3050 "shift input timestamps to start at 0 when using copyts" },
3051 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
3052 "copy input stream time base when stream copying", "mode" },
3053 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
3054 OPT_OUTPUT, { .off = OFFSET(shortest) },
3055 "finish encoding within shortest input" },
3056 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
3057 OPT_OUTPUT, { .off = OFFSET(apad) },
3059 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
3060 "timestamp discontinuity delta threshold", "threshold" },
3061 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
3062 "timestamp error delta threshold", "threshold" },
3063 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
3064 "exit on error", "error" },
3065 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
3066 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
3067 "copy initial non-keyframes" },
3068 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
3069 "copy or discard frames before start time" },
3070 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
3071 "set the number of frames to output", "number" },
3072 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
3073 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
3074 "force codec tag/fourcc", "fourcc/tag" },
3075 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
3076 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
3077 "use fixed quality scale (VBR)", "q" },
3078 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3079 OPT_OUTPUT, { .func_arg = opt_qscale },
3080 "use fixed quality scale (VBR)", "q" },
3081 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
3082 "set profile", "profile" },
3083 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
3084 "set stream filtergraph", "filter_graph" },
3085 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
3086 "read stream filtergraph description from a file", "filename" },
3087 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
3088 "reinit filtergraph on input parameter changes", "" },
3089 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
3090 "create a complex filtergraph", "graph_description" },
3091 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
3092 "create a complex filtergraph", "graph_description" },
3093 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
3094 "read complex filtergraph description from a file", "filename" },
3095 { "stats", OPT_BOOL, { &print_stats },
3096 "print progress report during encoding", },
3097 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
3098 OPT_OUTPUT, { .func_arg = opt_attach },
3099 "add an attachment to the output file", "filename" },
3100 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
3101 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
3102 "extract an attachment into a file", "filename" },
3103 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
3104 "print timestamp debugging info" },
3105 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
3106 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
3107 { "discard", OPT_STRING | HAS_ARG | OPT_SPEC |
3108 OPT_INPUT, { .off = OFFSET(discard) },
3110 { "disposition", OPT_STRING | HAS_ARG | OPT_SPEC |
3111 OPT_OUTPUT, { .off = OFFSET(disposition) },
3112 "disposition", "" },
3113 { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
3114 { .off = OFFSET(thread_queue_size) },
3115 "set the maximum number of queued packets from the demuxer" },
3118 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
3119 "set the number of video frames to output", "number" },
3120 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
3121 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
3122 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
3123 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
3124 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
3125 "set frame size (WxH or abbreviation)", "size" },
3126 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
3127 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
3128 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
3129 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
3130 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
3131 "set pixel format", "format" },
3132 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
3133 "set the number of bits per raw sample", "number" },
3134 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
3135 "deprecated use -g 1" },
3136 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
3138 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
3139 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
3140 "rate control override for specific intervals", "override" },
3141 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
3142 OPT_OUTPUT, { .func_arg = opt_video_codec },
3143 "force video codec ('copy' to copy stream)", "codec" },
3144 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
3146 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
3148 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
3149 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
3150 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
3151 "select the pass number (1 to 3)", "n" },
3152 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
3153 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
3154 "select two pass log file name prefix", "prefix" },
3155 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
3156 "this option is deprecated, use the yadif filter instead" },
3157 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
3158 "calculate PSNR of compressed frames" },
3159 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
3160 "dump video coding statistics to file" },
3161 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
3162 "dump video coding statistics to file", "file" },
3163 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
3164 "set video filters", "filter_graph" },
3165 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
3166 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
3167 "specify intra matrix coeffs", "matrix" },
3168 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
3169 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
3170 "specify inter matrix coeffs", "matrix" },
3171 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
3172 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
3173 "specify intra matrix coeffs", "matrix" },
3174 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
3175 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
3176 "top=1/bottom=0/auto=-1 field first", "" },
3177 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3178 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_old2new },
3179 "force video tag/fourcc", "fourcc/tag" },
3180 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
3181 "show QP histogram" },
3182 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
3183 OPT_OUTPUT, { .off = OFFSET(force_fps) },
3184 "force the selected framerate, disable the best supported framerate selection" },
3185 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3186 OPT_OUTPUT, { .func_arg = opt_streamid },
3187 "set the value of an outfile streamid", "streamIndex:value" },
3188 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
3189 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
3190 "force key frames at specified timestamps", "timestamps" },
3191 { "ab", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
3192 "audio bitrate (please use -b:a)", "bitrate" },
3193 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
3194 "video bitrate (please use -b:v)", "bitrate" },
3195 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
3196 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
3197 "use HW accelerated decoding", "hwaccel name" },
3198 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
3199 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
3200 "select a device for HW acceleration" "devicename" },
3202 { "vdpau_api_ver", HAS_ARG | OPT_INT | OPT_EXPERT, { &vdpau_api_ver }, "" },
3204 { "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC |
3205 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) },
3206 "automatically insert correct rotate filters" },
3209 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
3210 "set the number of audio frames to output", "number" },
3211 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
3212 "set audio quality (codec-specific)", "quality", },
3213 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3214 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
3215 "set audio sampling rate (in Hz)", "rate" },
3216 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3217 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
3218 "set number of audio channels", "channels" },
3219 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
3221 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
3222 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
3223 "force audio codec ('copy' to copy stream)", "codec" },
3224 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3225 OPT_OUTPUT, { .func_arg = opt_old2new },
3226 "force audio tag/fourcc", "fourcc/tag" },
3227 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
3228 "change audio volume (256=normal)" , "volume" },
3229 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
3230 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
3231 "set sample format", "format" },
3232 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3233 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
3234 "set channel layout", "layout" },
3235 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
3236 "set audio filters", "filter_graph" },
3237 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
3238 "set the maximum number of channels to try to guess the channel layout" },
3240 /* subtitle options */
3241 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
3242 "disable subtitle" },
3243 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
3244 "force subtitle codec ('copy' to copy stream)", "codec" },
3245 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
3246 , "force subtitle tag/fourcc", "fourcc/tag" },
3247 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
3248 "fix subtitles duration" },
3249 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
3250 "set canvas size (WxH or abbreviation)", "size" },
3253 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
3254 "deprecated, use -channel", "channel" },
3255 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
3256 "deprecated, use -standard", "standard" },
3257 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
3260 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
3261 "set the maximum demux-decode delay", "seconds" },
3262 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
3263 "set the initial demux-decode delay", "seconds" },
3264 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
3265 "override the options from ffserver", "" },
3266 { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { opt_sdp_file },
3267 "specify a file in which to print sdp information", "file" },
3269 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
3270 "A comma-separated list of bitstream filters", "bitstream_filters" },
3271 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3272 "deprecated", "audio bitstream_filters" },
3273 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3274 "deprecated", "video bitstream_filters" },
3276 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3277 "set the audio options to the indicated preset", "preset" },
3278 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3279 "set the video options to the indicated preset", "preset" },
3280 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3281 "set the subtitle options to the indicated preset", "preset" },
3282 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3283 "set options from indicated preset file", "filename" },
3284 /* data codec support */
3285 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
3286 "force data codec ('copy' to copy stream)", "codec" },
3287 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },