2 * ffmpeg option parsing
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavformat/avformat.h"
28 #include "libavcodec/avcodec.h"
30 #include "libavfilter/avfilter.h"
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
44 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
47 for (i = 0; i < o->nb_ ## name; i++) {\
48 char *spec = o->name[i].specifier;\
49 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
50 outvar = o->name[i].u.type;\
56 #define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
59 for (i = 0; i < o->nb_ ## name; i++) {\
60 char *spec = o->name[i].specifier;\
61 if (!strcmp(spec, mediatype))\
62 outvar = o->name[i].u.type;\
66 const HWAccel hwaccels[] = {
68 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
71 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
74 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
79 char *vstats_filename;
81 float audio_drift_threshold = 0.1;
82 float dts_delta_threshold = 10;
83 float dts_error_threshold = 3600*30;
85 int audio_volume = 256;
86 int audio_sync_method = 0;
87 int video_sync_method = VSYNC_AUTO;
88 int do_deinterlace = 0;
90 int do_benchmark_all = 0;
94 int start_at_zero = 0;
97 int exit_on_error = 0;
100 int stdin_interaction = 1;
101 int frame_bits_per_raw_sample = 0;
102 float max_error_rate = 2.0/3;
105 static int intra_only = 0;
106 static int file_overwrite = 0;
107 static int no_file_overwrite = 0;
108 static int do_psnr = 0;
109 static int input_sync;
110 static int override_ffserver = 0;
112 static void uninit_options(OptionsContext *o)
114 const OptionDef *po = options;
117 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
119 void *dst = (uint8_t*)o + po->u.off;
121 if (po->flags & OPT_SPEC) {
122 SpecifierOpt **so = dst;
123 int i, *count = (int*)(so + 1);
124 for (i = 0; i < *count; i++) {
125 av_freep(&(*so)[i].specifier);
126 if (po->flags & OPT_STRING)
127 av_freep(&(*so)[i].u.str);
131 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
136 for (i = 0; i < o->nb_stream_maps; i++)
137 av_freep(&o->stream_maps[i].linklabel);
138 av_freep(&o->stream_maps);
139 av_freep(&o->audio_channel_maps);
140 av_freep(&o->streamid_map);
141 av_freep(&o->attachments);
144 static void init_options(OptionsContext *o)
146 memset(o, 0, sizeof(*o));
148 o->stop_time = INT64_MAX;
149 o->mux_max_delay = 0.7;
150 o->start_time = AV_NOPTS_VALUE;
151 o->recording_time = INT64_MAX;
152 o->limit_filesize = UINT64_MAX;
153 o->chapters_input_file = INT_MAX;
154 o->accurate_seek = 1;
157 /* return a copy of the input with the stream specifiers removed from the keys */
158 static AVDictionary *strip_specifiers(AVDictionary *dict)
160 AVDictionaryEntry *e = NULL;
161 AVDictionary *ret = NULL;
163 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
164 char *p = strchr(e->key, ':');
168 av_dict_set(&ret, e->key, e->value, 0);
175 static int opt_sameq(void *optctx, const char *opt, const char *arg)
177 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
178 "If you are looking for an option to preserve the quality (which is not "
179 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
181 return AVERROR(EINVAL);
184 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
186 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
187 return opt_default(optctx, "channel", arg);
190 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
192 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
193 return opt_default(optctx, "standard", arg);
196 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
198 OptionsContext *o = optctx;
199 return parse_option(o, "codec:a", arg, options);
202 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
204 OptionsContext *o = optctx;
205 return parse_option(o, "codec:v", arg, options);
208 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
210 OptionsContext *o = optctx;
211 return parse_option(o, "codec:s", arg, options);
214 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
216 OptionsContext *o = optctx;
217 return parse_option(o, "codec:d", arg, options);
220 static int opt_map(void *optctx, const char *opt, const char *arg)
222 OptionsContext *o = optctx;
224 int i, negative = 0, file_idx;
225 int sync_file_idx = -1, sync_stream_idx = 0;
233 map = av_strdup(arg);
235 /* parse sync stream first, just pick first matching stream */
236 if (sync = strchr(map, ',')) {
238 sync_file_idx = strtol(sync + 1, &sync, 0);
239 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
240 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
245 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
246 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
247 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
251 if (i == input_files[sync_file_idx]->nb_streams) {
252 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
253 "match any streams.\n", arg);
260 /* this mapping refers to lavfi output */
261 const char *c = map + 1;
262 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
263 m = &o->stream_maps[o->nb_stream_maps - 1];
264 m->linklabel = av_get_token(&c, "]");
266 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
270 file_idx = strtol(map, &p, 0);
271 if (file_idx >= nb_input_files || file_idx < 0) {
272 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
276 /* disable some already defined maps */
277 for (i = 0; i < o->nb_stream_maps; i++) {
278 m = &o->stream_maps[i];
279 if (file_idx == m->file_index &&
280 check_stream_specifier(input_files[m->file_index]->ctx,
281 input_files[m->file_index]->ctx->streams[m->stream_index],
282 *p == ':' ? p + 1 : p) > 0)
286 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
287 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
288 *p == ':' ? p + 1 : p) <= 0)
290 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
291 m = &o->stream_maps[o->nb_stream_maps - 1];
293 m->file_index = file_idx;
296 if (sync_file_idx >= 0) {
297 m->sync_file_index = sync_file_idx;
298 m->sync_stream_index = sync_stream_idx;
300 m->sync_file_index = file_idx;
301 m->sync_stream_index = i;
307 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
315 static int opt_attach(void *optctx, const char *opt, const char *arg)
317 OptionsContext *o = optctx;
318 GROW_ARRAY(o->attachments, o->nb_attachments);
319 o->attachments[o->nb_attachments - 1] = arg;
323 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
325 OptionsContext *o = optctx;
330 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
331 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
333 /* muted channel syntax */
334 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
335 if ((n == 1 || n == 3) && m->channel_idx == -1) {
336 m->file_idx = m->stream_idx = -1;
338 m->ofile_idx = m->ostream_idx = -1;
343 n = sscanf(arg, "%d.%d.%d:%d.%d",
344 &m->file_idx, &m->stream_idx, &m->channel_idx,
345 &m->ofile_idx, &m->ostream_idx);
347 if (n != 3 && n != 5) {
348 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
349 "[file.stream.channel|-1][:syncfile:syncstream]\n");
353 if (n != 5) // only file.stream.channel specified
354 m->ofile_idx = m->ostream_idx = -1;
357 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
358 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
362 if (m->stream_idx < 0 ||
363 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
364 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
365 m->file_idx, m->stream_idx);
368 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
369 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
370 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
371 m->file_idx, m->stream_idx);
374 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
375 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
376 m->file_idx, m->stream_idx, m->channel_idx);
383 * Parse a metadata specifier passed as 'arg' parameter.
384 * @param arg metadata string to parse
385 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
386 * @param index for type c/p, chapter/program index is written here
387 * @param stream_spec for type s, the stream specifier is written here
389 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
397 if (*(++arg) && *arg != ':') {
398 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
401 *stream_spec = *arg == ':' ? arg + 1 : "";
406 *index = strtol(++arg, NULL, 0);
409 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
416 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
418 AVDictionary **meta_in = NULL;
419 AVDictionary **meta_out = NULL;
421 char type_in, type_out;
422 const char *istream_spec = NULL, *ostream_spec = NULL;
423 int idx_in = 0, idx_out = 0;
425 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
426 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
429 if (type_out == 'g' || !*outspec)
430 o->metadata_global_manual = 1;
431 if (type_out == 's' || !*outspec)
432 o->metadata_streams_manual = 1;
433 if (type_out == 'c' || !*outspec)
434 o->metadata_chapters_manual = 1;
438 if (type_in == 'g' || type_out == 'g')
439 o->metadata_global_manual = 1;
440 if (type_in == 's' || type_out == 's')
441 o->metadata_streams_manual = 1;
442 if (type_in == 'c' || type_out == 'c')
443 o->metadata_chapters_manual = 1;
445 /* ic is NULL when just disabling automatic mappings */
449 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
450 if ((index) < 0 || (index) >= (nb_elems)) {\
451 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
456 #define SET_DICT(type, meta, context, index)\
459 meta = &context->metadata;\
462 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
463 meta = &context->chapters[index]->metadata;\
466 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
467 meta = &context->programs[index]->metadata;\
470 break; /* handled separately below */ \
471 default: av_assert0(0);\
474 SET_DICT(type_in, meta_in, ic, idx_in);
475 SET_DICT(type_out, meta_out, oc, idx_out);
477 /* for input streams choose first matching stream */
478 if (type_in == 's') {
479 for (i = 0; i < ic->nb_streams; i++) {
480 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
481 meta_in = &ic->streams[i]->metadata;
487 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
492 if (type_out == 's') {
493 for (i = 0; i < oc->nb_streams; i++) {
494 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
495 meta_out = &oc->streams[i]->metadata;
496 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
501 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
506 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
508 OptionsContext *o = optctx;
510 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
511 struct tm time = *gmtime((time_t*)&recording_timestamp);
512 if (!strftime(buf, sizeof(buf), "creation_time=%FT%T%z", &time))
514 parse_option(o, "metadata", buf, options);
516 av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
517 "tag instead.\n", opt);
521 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
523 const AVCodecDescriptor *desc;
524 const char *codec_string = encoder ? "encoder" : "decoder";
528 avcodec_find_encoder_by_name(name) :
529 avcodec_find_decoder_by_name(name);
531 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
532 codec = encoder ? avcodec_find_encoder(desc->id) :
533 avcodec_find_decoder(desc->id);
535 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
536 codec_string, codec->name, desc->name);
540 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
543 if (codec->type != type) {
544 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
550 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
552 char *codec_name = NULL;
554 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
556 AVCodec *codec = find_codec_or_die(codec_name, st->codec->codec_type, 0);
557 st->codec->codec_id = codec->id;
560 return avcodec_find_decoder(st->codec->codec_id);
563 /* Add all the streams from the given input file to the global
564 * list of input streams. */
565 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
569 for (i = 0; i < ic->nb_streams; i++) {
570 AVStream *st = ic->streams[i];
571 AVCodecContext *dec = st->codec;
572 InputStream *ist = av_mallocz(sizeof(*ist));
573 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
574 char *codec_tag = NULL;
576 char *discard_str = NULL;
577 const AVOption *discard_opt = av_opt_find(dec, "skip_frame", NULL, 0, 0);
582 GROW_ARRAY(input_streams, nb_input_streams);
583 input_streams[nb_input_streams - 1] = ist;
586 ist->file_index = nb_input_files;
588 st->discard = AVDISCARD_ALL;
591 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
593 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
595 uint32_t tag = strtol(codec_tag, &next, 0);
597 tag = AV_RL32(codec_tag);
598 st->codec->codec_tag = tag;
601 ist->dec = choose_decoder(o, ic, st);
602 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
604 ist->reinit_filters = -1;
605 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
607 MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
608 ist->user_set_discard = AVDISCARD_NONE;
609 if (discard_str && av_opt_eval_int(dec, discard_opt, discard_str, &ist->user_set_discard) < 0) {
610 av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
615 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
617 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
619 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
623 ret = avcodec_copy_context(ist->dec_ctx, dec);
625 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
629 switch (dec->codec_type) {
630 case AVMEDIA_TYPE_VIDEO:
632 ist->dec = avcodec_find_decoder(dec->codec_id);
633 if (av_codec_get_lowres(dec)) {
634 dec->flags |= CODEC_FLAG_EMU_EDGE;
637 ist->resample_height = ist->dec_ctx->height;
638 ist->resample_width = ist->dec_ctx->width;
639 ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
641 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
642 if (framerate && av_parse_video_rate(&ist->framerate,
644 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
649 ist->top_field_first = -1;
650 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
652 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
654 if (!strcmp(hwaccel, "none"))
655 ist->hwaccel_id = HWACCEL_NONE;
656 else if (!strcmp(hwaccel, "auto"))
657 ist->hwaccel_id = HWACCEL_AUTO;
660 for (i = 0; hwaccels[i].name; i++) {
661 if (!strcmp(hwaccels[i].name, hwaccel)) {
662 ist->hwaccel_id = hwaccels[i].id;
667 if (!ist->hwaccel_id) {
668 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
670 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
671 for (i = 0; hwaccels[i].name; i++)
672 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
673 av_log(NULL, AV_LOG_FATAL, "\n");
679 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
680 if (hwaccel_device) {
681 ist->hwaccel_device = av_strdup(hwaccel_device);
682 if (!ist->hwaccel_device)
685 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
688 case AVMEDIA_TYPE_AUDIO:
689 ist->guess_layout_max = INT_MAX;
690 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
691 guess_input_channel_layout(ist);
693 ist->resample_sample_fmt = ist->dec_ctx->sample_fmt;
694 ist->resample_sample_rate = ist->dec_ctx->sample_rate;
695 ist->resample_channels = ist->dec_ctx->channels;
696 ist->resample_channel_layout = ist->dec_ctx->channel_layout;
699 case AVMEDIA_TYPE_DATA:
700 case AVMEDIA_TYPE_SUBTITLE: {
701 char *canvas_size = NULL;
703 ist->dec = avcodec_find_decoder(dec->codec_id);
704 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
705 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
707 av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
708 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
713 case AVMEDIA_TYPE_ATTACHMENT:
714 case AVMEDIA_TYPE_UNKNOWN:
722 static void assert_file_overwrite(const char *filename)
724 if (file_overwrite && no_file_overwrite) {
725 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
729 if (!file_overwrite) {
730 const char *proto_name = avio_find_protocol_name(filename);
731 if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
732 if (stdin_interaction && !no_file_overwrite) {
733 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
736 signal(SIGINT, SIG_DFL);
738 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
744 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
751 static void dump_attachment(AVStream *st, const char *filename)
754 AVIOContext *out = NULL;
755 AVDictionaryEntry *e;
757 if (!st->codec->extradata_size) {
758 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
759 nb_input_files - 1, st->index);
762 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
765 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
766 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
770 assert_file_overwrite(filename);
772 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
773 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
778 avio_write(out, st->codec->extradata, st->codec->extradata_size);
783 static int open_input_file(OptionsContext *o, const char *filename)
787 AVInputFormat *file_iformat = NULL;
791 AVDictionary *unused_opts = NULL;
792 AVDictionaryEntry *e = NULL;
793 int orig_nb_streams; // number of streams before avformat_find_stream_info
794 char * video_codec_name = NULL;
795 char * audio_codec_name = NULL;
796 char *subtitle_codec_name = NULL;
799 if (!(file_iformat = av_find_input_format(o->format))) {
800 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
805 if (!strcmp(filename, "-"))
808 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
809 strcmp(filename, "/dev/stdin");
811 /* get default parameters from command line */
812 ic = avformat_alloc_context();
814 print_error(filename, AVERROR(ENOMEM));
817 if (o->nb_audio_sample_rate) {
818 av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
820 if (o->nb_audio_channels) {
821 /* because we set audio_channels based on both the "ac" and
822 * "channel_layout" options, we need to check that the specified
823 * demuxer actually has the "channels" option before setting it */
824 if (file_iformat && file_iformat->priv_class &&
825 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
826 AV_OPT_SEARCH_FAKE_OBJ)) {
827 av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
830 if (o->nb_frame_rates) {
831 /* set the format-level framerate option;
832 * this is important for video grabbers, e.g. x11 */
833 if (file_iformat && file_iformat->priv_class &&
834 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
835 AV_OPT_SEARCH_FAKE_OBJ)) {
836 av_dict_set(&o->g->format_opts, "framerate",
837 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
840 if (o->nb_frame_sizes) {
841 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
843 if (o->nb_frame_pix_fmts)
844 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
846 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
847 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
848 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
850 ic->video_codec_id = video_codec_name ?
851 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
852 ic->audio_codec_id = audio_codec_name ?
853 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
854 ic->subtitle_codec_id= subtitle_codec_name ?
855 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
857 if (video_codec_name)
858 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
859 if (audio_codec_name)
860 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
861 if (subtitle_codec_name)
862 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
864 ic->flags |= AVFMT_FLAG_NONBLOCK;
865 ic->interrupt_callback = int_cb;
867 /* open the input file with generic avformat function */
868 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
870 print_error(filename, err);
873 remove_avoptions(&o->g->format_opts, o->g->codec_opts);
874 assert_avoptions(o->g->format_opts);
876 /* apply forced codec ids */
877 for (i = 0; i < ic->nb_streams; i++)
878 choose_decoder(o, ic, ic->streams[i]);
880 /* Set AVCodecContext options for avformat_find_stream_info */
881 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
882 orig_nb_streams = ic->nb_streams;
884 /* If not enough info to get the stream parameters, we decode the
885 first frames to get it. (used in mpeg case for example) */
886 ret = avformat_find_stream_info(ic, opts);
888 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
889 if (ic->nb_streams == 0) {
890 avformat_close_input(&ic);
895 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
896 /* add the stream start time */
897 if (ic->start_time != AV_NOPTS_VALUE)
898 timestamp += ic->start_time;
900 /* if seeking requested, we execute it */
901 if (o->start_time != AV_NOPTS_VALUE) {
902 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
904 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
905 filename, (double)timestamp / AV_TIME_BASE);
909 /* update the current parameters so that they match the one of the input stream */
910 add_input_streams(o, ic);
912 /* dump the file content */
913 av_dump_format(ic, nb_input_files, filename, 0);
915 GROW_ARRAY(input_files, nb_input_files);
916 f = av_mallocz(sizeof(*f));
919 input_files[nb_input_files - 1] = f;
922 f->ist_index = nb_input_streams - ic->nb_streams;
923 f->start_time = o->start_time;
924 f->recording_time = o->recording_time;
925 f->input_ts_offset = o->input_ts_offset;
926 f->ts_offset = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
927 f->nb_streams = ic->nb_streams;
928 f->rate_emu = o->rate_emu;
929 f->accurate_seek = o->accurate_seek;
931 /* check if all codec options have been used */
932 unused_opts = strip_specifiers(o->g->codec_opts);
933 for (i = f->ist_index; i < nb_input_streams; i++) {
935 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
936 AV_DICT_IGNORE_SUFFIX)))
937 av_dict_set(&unused_opts, e->key, NULL, 0);
941 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
942 const AVClass *class = avcodec_get_class();
943 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
944 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
945 const AVClass *fclass = avformat_get_class();
946 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
947 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
948 if (!option || foption)
952 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
953 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
954 "input file #%d (%s) is not a decoding option.\n", e->key,
955 option->help ? option->help : "", nb_input_files - 1,
960 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
961 "input file #%d (%s) has not been used for any stream. The most "
962 "likely reason is either wrong type (e.g. a video option with "
963 "no video streams) or that it is a private option of some decoder "
964 "which was not actually used for any stream.\n", e->key,
965 option->help ? option->help : "", nb_input_files - 1, filename);
967 av_dict_free(&unused_opts);
969 for (i = 0; i < o->nb_dump_attachment; i++) {
972 for (j = 0; j < ic->nb_streams; j++) {
973 AVStream *st = ic->streams[j];
975 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
976 dump_attachment(st, o->dump_attachment[i].u.str);
980 for (i = 0; i < orig_nb_streams; i++)
981 av_dict_free(&opts[i]);
987 static uint8_t *get_line(AVIOContext *s)
993 if (avio_open_dyn_buf(&line) < 0) {
994 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
998 while ((c = avio_r8(s)) && c != '\n')
1001 avio_close_dyn_buf(line, &buf);
1006 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
1009 char filename[1000];
1010 const char *base[3] = { getenv("AVCONV_DATADIR"),
1015 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
1019 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
1020 i != 1 ? "" : "/.avconv", codec_name, preset_name);
1021 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1024 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
1025 i != 1 ? "" : "/.avconv", preset_name);
1026 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1032 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
1034 char *codec_name = NULL;
1036 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
1038 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
1039 NULL, ost->st->codec->codec_type);
1040 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1041 } else if (!strcmp(codec_name, "copy"))
1042 ost->stream_copy = 1;
1044 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
1045 ost->st->codec->codec_id = ost->enc->id;
1049 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
1052 AVStream *st = avformat_new_stream(oc, NULL);
1053 int idx = oc->nb_streams - 1, ret = 0;
1054 char *bsf = NULL, *next, *codec_tag = NULL;
1055 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
1060 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
1064 if (oc->nb_streams - 1 < o->nb_streamid_map)
1065 st->id = o->streamid_map[oc->nb_streams - 1];
1067 GROW_ARRAY(output_streams, nb_output_streams);
1068 if (!(ost = av_mallocz(sizeof(*ost))))
1070 output_streams[nb_output_streams - 1] = ost;
1072 ost->file_index = nb_output_files - 1;
1075 st->codec->codec_type = type;
1076 choose_encoder(o, oc, ost);
1078 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
1079 if (!ost->enc_ctx) {
1080 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
1083 ost->enc_ctx->codec_type = type;
1086 AVIOContext *s = NULL;
1087 char *buf = NULL, *arg = NULL, *preset = NULL;
1089 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1091 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1092 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1095 if (!buf[0] || buf[0] == '#') {
1099 if (!(arg = strchr(buf, '='))) {
1100 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1104 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1106 } while (!s->eof_reached);
1110 av_log(NULL, AV_LOG_FATAL,
1111 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1112 preset, ost->file_index, ost->index);
1116 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1119 ost->max_frames = INT64_MAX;
1120 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1121 for (i = 0; i<o->nb_max_frames; i++) {
1122 char *p = o->max_frames[i].specifier;
1123 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1124 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1129 ost->copy_prior_start = -1;
1130 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1132 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1134 if (next = strchr(bsf, ','))
1136 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1137 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1141 bsfc_prev->next = bsfc;
1143 ost->bitstream_filters = bsfc;
1149 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1151 uint32_t tag = strtol(codec_tag, &next, 0);
1153 tag = AV_RL32(codec_tag);
1154 ost->enc_ctx->codec_tag = tag;
1157 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1159 ost->enc_ctx->flags |= CODEC_FLAG_QSCALE;
1160 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1163 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1164 ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
1166 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1168 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1169 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1170 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1172 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1174 ost->source_index = source_index;
1175 if (source_index >= 0) {
1176 ost->sync_ist = input_streams[source_index];
1177 input_streams[source_index]->discard = 0;
1178 input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
1180 ost->last_mux_dts = AV_NOPTS_VALUE;
1185 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1188 const char *p = str;
1195 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1202 /* read file contents into a string */
1203 static uint8_t *read_file(const char *filename)
1205 AVIOContext *pb = NULL;
1206 AVIOContext *dyn_buf = NULL;
1207 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1208 uint8_t buf[1024], *str;
1211 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1215 ret = avio_open_dyn_buf(&dyn_buf);
1220 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1221 avio_write(dyn_buf, buf, ret);
1222 avio_w8(dyn_buf, 0);
1225 ret = avio_close_dyn_buf(dyn_buf, &str);
1231 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1234 AVStream *st = ost->st;
1236 if (ost->filters_script && ost->filters) {
1237 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1238 "output stream #%d:%d.\n", nb_output_files, st->index);
1242 if (ost->filters_script)
1243 return read_file(ost->filters_script);
1244 else if (ost->filters)
1245 return av_strdup(ost->filters);
1247 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1251 static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1252 const OutputStream *ost, enum AVMediaType type)
1254 if (ost->filters_script || ost->filters) {
1255 av_log(NULL, AV_LOG_ERROR,
1256 "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
1257 "Filtering and streamcopy cannot be used together.\n",
1258 ost->filters ? "Filtergraph" : "Filtergraph script",
1259 ost->filters ? ost->filters : ost->filters_script,
1260 av_get_media_type_string(type), ost->file_index, ost->index);
1265 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1269 AVCodecContext *video_enc;
1270 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1272 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1274 video_enc = ost->enc_ctx;
1276 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1277 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1278 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1281 if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
1282 av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
1284 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1285 if (frame_aspect_ratio) {
1287 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1288 q.num <= 0 || q.den <= 0) {
1289 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1292 ost->frame_aspect_ratio = q;
1295 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1296 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1298 if (!ost->stream_copy) {
1299 const char *p = NULL;
1300 char *frame_size = NULL;
1301 char *frame_pix_fmt = NULL;
1302 char *intra_matrix = NULL, *inter_matrix = NULL;
1303 char *chroma_intra_matrix = NULL;
1307 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1308 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1309 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1313 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1314 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1315 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1316 ost->keep_pix_fmt = 1;
1317 if (!*++frame_pix_fmt)
1318 frame_pix_fmt = NULL;
1320 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1321 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1324 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1327 video_enc->gop_size = 0;
1328 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1330 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1331 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1334 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1336 MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
1337 if (chroma_intra_matrix) {
1338 uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
1340 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1343 av_codec_set_chroma_intra_matrix(video_enc, p);
1344 parse_matrix_coeffs(p, chroma_intra_matrix);
1346 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1348 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1349 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1352 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1355 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1356 for (i = 0; p; i++) {
1358 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1360 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1363 /* FIXME realloc failure */
1364 video_enc->rc_override =
1365 av_realloc(video_enc->rc_override,
1366 sizeof(RcOverride) * (i + 1));
1367 video_enc->rc_override[i].start_frame = start;
1368 video_enc->rc_override[i].end_frame = end;
1370 video_enc->rc_override[i].qscale = q;
1371 video_enc->rc_override[i].quality_factor = 1.0;
1374 video_enc->rc_override[i].qscale = 0;
1375 video_enc->rc_override[i].quality_factor = -q/100.0;
1380 video_enc->rc_override_count = i;
1383 video_enc->flags|= CODEC_FLAG_PSNR;
1386 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1389 video_enc->flags |= CODEC_FLAG_PASS1;
1390 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
1393 video_enc->flags |= CODEC_FLAG_PASS2;
1394 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
1398 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1399 if (ost->logfile_prefix &&
1400 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1403 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1404 if (ost->forced_keyframes)
1405 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1407 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1409 ost->top_field_first = -1;
1410 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1413 ost->avfilter = get_ost_filters(o, oc, ost);
1417 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1420 if (ost->stream_copy)
1421 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1426 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1431 AVCodecContext *audio_enc;
1433 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1436 audio_enc = ost->enc_ctx;
1437 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1439 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1440 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1442 if (!ost->stream_copy) {
1443 char *sample_fmt = NULL;
1445 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1447 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1449 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1450 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1454 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1456 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1457 ost->apad = av_strdup(ost->apad);
1459 ost->avfilter = get_ost_filters(o, oc, ost);
1463 /* check for channel mapping for this audio stream */
1464 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1465 AudioChannelMap *map = &o->audio_channel_maps[n];
1466 if ((map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1467 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1470 if (map->channel_idx == -1) {
1472 } else if (ost->source_index < 0) {
1473 av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
1474 ost->file_index, ost->st->index);
1477 ist = input_streams[ost->source_index];
1480 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
1481 if (av_reallocp_array(&ost->audio_channels_map,
1482 ost->audio_channels_mapped + 1,
1483 sizeof(*ost->audio_channels_map)
1487 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1493 if (ost->stream_copy)
1494 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1499 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1503 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1504 if (!ost->stream_copy) {
1505 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1512 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1514 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1515 ost->stream_copy = 1;
1520 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1524 AVCodecContext *subtitle_enc;
1526 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1528 subtitle_enc = ost->enc_ctx;
1530 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1532 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1534 if (!ost->stream_copy) {
1535 char *frame_size = NULL;
1537 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1538 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1539 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1547 /* arg format is "output-stream-index:streamid-value". */
1548 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1550 OptionsContext *o = optctx;
1555 av_strlcpy(idx_str, arg, sizeof(idx_str));
1556 p = strchr(idx_str, ':');
1558 av_log(NULL, AV_LOG_FATAL,
1559 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1564 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1565 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1566 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1570 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1572 AVFormatContext *is = ifile->ctx;
1573 AVFormatContext *os = ofile->ctx;
1577 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1579 return AVERROR(ENOMEM);
1582 for (i = 0; i < is->nb_chapters; i++) {
1583 AVChapter *in_ch = is->chapters[i], *out_ch;
1584 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1585 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1586 AV_TIME_BASE_Q, in_ch->time_base);
1587 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1588 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1591 if (in_ch->end < ts_off)
1593 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1596 out_ch = av_mallocz(sizeof(AVChapter));
1598 return AVERROR(ENOMEM);
1600 out_ch->id = in_ch->id;
1601 out_ch->time_base = in_ch->time_base;
1602 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1603 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1606 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1608 os->chapters[os->nb_chapters++] = out_ch;
1613 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1616 AVFormatContext *ic = avformat_alloc_context();
1618 ic->interrupt_callback = int_cb;
1619 err = avformat_open_input(&ic, filename, NULL, NULL);
1622 /* copy stream format */
1623 for(i=0;i<ic->nb_streams;i++) {
1627 AVCodecContext *avctx;
1629 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1631 av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codec->codec_id);
1632 return AVERROR(EINVAL);
1634 ost = new_output_stream(o, s, codec->type, -1);
1639 // FIXME: a more elegant solution is needed
1640 memcpy(st, ic->streams[i], sizeof(AVStream));
1642 st->info = av_malloc(sizeof(*st->info));
1643 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1645 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1647 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1648 choose_sample_fmt(st, codec);
1649 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1650 choose_pixel_fmt(st, st->codec, codec, st->codec->pix_fmt);
1651 avcodec_copy_context(ost->enc_ctx, st->codec);
1654 avformat_close_input(&ic);
1658 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1659 AVFormatContext *oc)
1663 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1664 ofilter->out_tmp->pad_idx)) {
1665 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1666 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1668 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1673 ost->source_index = -1;
1674 ost->filter = ofilter;
1678 if (ost->stream_copy) {
1679 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1680 "which is fed from a complex filtergraph. Filtering and streamcopy "
1681 "cannot be used together.\n", ost->file_index, ost->index);
1685 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1686 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1687 av_log(NULL, AV_LOG_ERROR,
1688 "%s '%s' was specified through the %s option "
1689 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1690 "%s and -filter_complex cannot be used together for the same stream.\n",
1691 ost->filters ? "Filtergraph" : "Filtergraph script",
1692 ost->filters ? ost->filters : ost->filters_script,
1693 opt, ost->file_index, ost->index, opt);
1697 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1698 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1701 avfilter_inout_free(&ofilter->out_tmp);
1704 static int configure_complex_filters(void)
1708 for (i = 0; i < nb_filtergraphs; i++)
1709 if (!filtergraphs[i]->graph &&
1710 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1715 static int open_output_file(OptionsContext *o, const char *filename)
1717 AVFormatContext *oc;
1719 AVOutputFormat *file_oformat;
1723 AVDictionary *unused_opts = NULL;
1724 AVDictionaryEntry *e = NULL;
1726 if (configure_complex_filters() < 0) {
1727 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1731 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1732 o->stop_time = INT64_MAX;
1733 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1736 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1737 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1738 if (o->stop_time <= start_time) {
1739 av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
1742 o->recording_time = o->stop_time - start_time;
1746 GROW_ARRAY(output_files, nb_output_files);
1747 of = av_mallocz(sizeof(*of));
1750 output_files[nb_output_files - 1] = of;
1752 of->ost_index = nb_output_streams;
1753 of->recording_time = o->recording_time;
1754 of->start_time = o->start_time;
1755 of->limit_filesize = o->limit_filesize;
1756 of->shortest = o->shortest;
1757 av_dict_copy(&of->opts, o->g->format_opts, 0);
1759 if (!strcmp(filename, "-"))
1762 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1764 print_error(filename, err);
1769 if (o->recording_time != INT64_MAX)
1770 oc->duration = o->recording_time;
1772 file_oformat= oc->oformat;
1773 oc->interrupt_callback = int_cb;
1775 /* create streams for all unlabeled output pads */
1776 for (i = 0; i < nb_filtergraphs; i++) {
1777 FilterGraph *fg = filtergraphs[i];
1778 for (j = 0; j < fg->nb_outputs; j++) {
1779 OutputFilter *ofilter = fg->outputs[j];
1781 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1784 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1785 ofilter->out_tmp->pad_idx)) {
1786 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1787 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1788 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1790 init_output_filter(ofilter, o, oc);
1794 /* ffserver seeking with date=... needs a date reference */
1795 if (!strcmp(file_oformat->name, "ffm") &&
1796 av_strstart(filename, "http:", NULL)) {
1797 int err = parse_option(o, "metadata", "creation_time=now", options);
1799 print_error(filename, err);
1804 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1805 av_strstart(filename, "http:", NULL)) {
1807 /* special case for files sent to ffserver: we get the stream
1808 parameters from ffserver */
1809 int err = read_ffserver_streams(o, oc, filename);
1811 print_error(filename, err);
1814 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1815 ost = output_streams[j];
1816 for (i = 0; i < nb_input_streams; i++) {
1817 ist = input_streams[i];
1818 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1820 ost->source_index= i;
1821 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1822 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1824 ist->st->discard = ist->user_set_discard;
1829 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));
1833 } else if (!o->nb_stream_maps) {
1834 char *subtitle_codec_name = NULL;
1835 /* pick the "best" stream of each type */
1837 /* video: highest resolution */
1838 if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
1839 int area = 0, idx = -1;
1840 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1841 for (i = 0; i < nb_input_streams; i++) {
1843 ist = input_streams[i];
1844 new_area = ist->st->codec->width * ist->st->codec->height;
1845 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1847 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1849 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1856 new_video_stream(o, oc, idx);
1859 /* audio: most channels */
1860 if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
1861 int channels = 0, idx = -1;
1862 for (i = 0; i < nb_input_streams; i++) {
1863 ist = input_streams[i];
1864 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1865 ist->st->codec->channels > channels) {
1866 channels = ist->st->codec->channels;
1871 new_audio_stream(o, oc, idx);
1874 /* subtitles: pick first */
1875 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1876 if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
1877 for (i = 0; i < nb_input_streams; i++)
1878 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1879 AVCodecDescriptor const *input_descriptor =
1880 avcodec_descriptor_get(input_streams[i]->st->codec->codec_id);
1881 AVCodecDescriptor const *output_descriptor = NULL;
1882 AVCodec const *output_codec =
1883 avcodec_find_encoder(oc->oformat->subtitle_codec);
1884 int input_props = 0, output_props = 0;
1886 output_descriptor = avcodec_descriptor_get(output_codec->id);
1887 if (input_descriptor)
1888 input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
1889 if (output_descriptor)
1890 output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
1891 if (subtitle_codec_name ||
1892 input_props & output_props ||
1893 // Map dvb teletext which has neither property to any output subtitle encoder
1894 input_descriptor && output_descriptor &&
1895 (!input_descriptor->props ||
1896 !output_descriptor->props)) {
1897 new_subtitle_stream(o, oc, i);
1902 /* do something with data? */
1904 for (i = 0; i < o->nb_stream_maps; i++) {
1905 StreamMap *map = &o->stream_maps[i];
1910 if (map->linklabel) {
1912 OutputFilter *ofilter = NULL;
1915 for (j = 0; j < nb_filtergraphs; j++) {
1916 fg = filtergraphs[j];
1917 for (k = 0; k < fg->nb_outputs; k++) {
1918 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1919 if (out && !strcmp(out->name, map->linklabel)) {
1920 ofilter = fg->outputs[k];
1927 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1928 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1931 init_output_filter(ofilter, o, oc);
1933 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1935 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1936 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1938 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1940 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1942 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1945 switch (ist->st->codec->codec_type) {
1946 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1947 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1948 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1949 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1950 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1952 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1953 map->file_index, map->stream_index);
1960 /* handle attached files */
1961 for (i = 0; i < o->nb_attachments; i++) {
1963 uint8_t *attachment;
1967 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1968 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1972 if ((len = avio_size(pb)) <= 0) {
1973 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1977 if (!(attachment = av_malloc(len))) {
1978 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1982 avio_read(pb, attachment, len);
1984 ost = new_attachment_stream(o, oc, -1);
1985 ost->stream_copy = 0;
1986 ost->attachment_filename = o->attachments[i];
1988 ost->enc_ctx->extradata = attachment;
1989 ost->enc_ctx->extradata_size = len;
1991 p = strrchr(o->attachments[i], '/');
1992 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1996 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1997 AVDictionaryEntry *e;
1998 ost = output_streams[i];
2000 if ((ost->stream_copy || ost->attachment_filename)
2001 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
2002 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
2003 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
2007 /* check if all codec options have been used */
2008 unused_opts = strip_specifiers(o->g->codec_opts);
2009 for (i = of->ost_index; i < nb_output_streams; i++) {
2011 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
2012 AV_DICT_IGNORE_SUFFIX)))
2013 av_dict_set(&unused_opts, e->key, NULL, 0);
2017 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
2018 const AVClass *class = avcodec_get_class();
2019 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
2020 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2021 const AVClass *fclass = avformat_get_class();
2022 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
2023 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2024 if (!option || foption)
2028 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
2029 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
2030 "output file #%d (%s) is not an encoding option.\n", e->key,
2031 option->help ? option->help : "", nb_output_files - 1,
2036 // gop_timecode is injected by generic code but not always used
2037 if (!strcmp(e->key, "gop_timecode"))
2040 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
2041 "output file #%d (%s) has not been used for any stream. The most "
2042 "likely reason is either wrong type (e.g. a video option with "
2043 "no video streams) or that it is a private option of some encoder "
2044 "which was not actually used for any stream.\n", e->key,
2045 option->help ? option->help : "", nb_output_files - 1, filename);
2047 av_dict_free(&unused_opts);
2049 /* check filename in case of an image number is expected */
2050 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2051 if (!av_filename_number_test(oc->filename)) {
2052 print_error(oc->filename, AVERROR(EINVAL));
2057 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2058 /* test if it already exists to avoid losing precious files */
2059 assert_file_overwrite(filename);
2062 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
2063 &oc->interrupt_callback,
2065 print_error(filename, err);
2068 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
2069 assert_file_overwrite(filename);
2071 if (o->mux_preload) {
2072 av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
2074 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2077 for (i = 0; i < o->nb_metadata_map; i++) {
2079 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2081 if (in_file_index >= nb_input_files) {
2082 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2085 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2086 in_file_index >= 0 ?
2087 input_files[in_file_index]->ctx : NULL, o);
2091 if (o->chapters_input_file >= nb_input_files) {
2092 if (o->chapters_input_file == INT_MAX) {
2093 /* copy chapters from the first input file that has them*/
2094 o->chapters_input_file = -1;
2095 for (i = 0; i < nb_input_files; i++)
2096 if (input_files[i]->ctx->nb_chapters) {
2097 o->chapters_input_file = i;
2101 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2102 o->chapters_input_file);
2106 if (o->chapters_input_file >= 0)
2107 copy_chapters(input_files[o->chapters_input_file], of,
2108 !o->metadata_chapters_manual);
2110 /* copy global metadata by default */
2111 if (!o->metadata_global_manual && nb_input_files){
2112 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2113 AV_DICT_DONT_OVERWRITE);
2114 if(o->recording_time != INT64_MAX)
2115 av_dict_set(&oc->metadata, "duration", NULL, 0);
2116 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2118 if (!o->metadata_streams_manual)
2119 for (i = of->ost_index; i < nb_output_streams; i++) {
2121 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2123 ist = input_streams[output_streams[i]->source_index];
2124 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2125 if (!output_streams[i]->stream_copy)
2126 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
2129 /* process manually set metadata */
2130 for (i = 0; i < o->nb_metadata; i++) {
2133 const char *stream_spec;
2134 int index = 0, j, ret = 0;
2136 val = strchr(o->metadata[i].u.str, '=');
2138 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2139 o->metadata[i].u.str);
2144 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2146 for (j = 0; j < oc->nb_streams; j++) {
2147 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2148 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2159 if (index < 0 || index >= oc->nb_chapters) {
2160 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2163 m = &oc->chapters[index]->metadata;
2166 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2169 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2176 static int opt_target(void *optctx, const char *opt, const char *arg)
2178 OptionsContext *o = optctx;
2179 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2180 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2182 if (!strncmp(arg, "pal-", 4)) {
2185 } else if (!strncmp(arg, "ntsc-", 5)) {
2188 } else if (!strncmp(arg, "film-", 5)) {
2192 /* Try to determine PAL/NTSC by peeking in the input files */
2193 if (nb_input_files) {
2195 for (j = 0; j < nb_input_files; j++) {
2196 for (i = 0; i < input_files[j]->nb_streams; i++) {
2197 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2198 if (c->codec_type != AVMEDIA_TYPE_VIDEO ||
2201 fr = c->time_base.den * 1000 / c->time_base.num;
2205 } else if ((fr == 29970) || (fr == 23976)) {
2210 if (norm != UNKNOWN)
2214 if (norm != UNKNOWN)
2215 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2218 if (norm == UNKNOWN) {
2219 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2220 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2221 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2225 if (!strcmp(arg, "vcd")) {
2226 opt_video_codec(o, "c:v", "mpeg1video");
2227 opt_audio_codec(o, "c:a", "mp2");
2228 parse_option(o, "f", "vcd", options);
2230 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2231 parse_option(o, "r", frame_rates[norm], options);
2232 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2234 opt_default(NULL, "b:v", "1150000");
2235 opt_default(NULL, "maxrate", "1150000");
2236 opt_default(NULL, "minrate", "1150000");
2237 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
2239 opt_default(NULL, "b:a", "224000");
2240 parse_option(o, "ar", "44100", options);
2241 parse_option(o, "ac", "2", options);
2243 opt_default(NULL, "packetsize", "2324");
2244 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
2246 /* We have to offset the PTS, so that it is consistent with the SCR.
2247 SCR starts at 36000, but the first two packs contain only padding
2248 and the first pack from the other stream, respectively, may also have
2249 been written before.
2250 So the real data starts at SCR 36000+3*1200. */
2251 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2252 } else if (!strcmp(arg, "svcd")) {
2254 opt_video_codec(o, "c:v", "mpeg2video");
2255 opt_audio_codec(o, "c:a", "mp2");
2256 parse_option(o, "f", "svcd", options);
2258 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2259 parse_option(o, "r", frame_rates[norm], options);
2260 parse_option(o, "pix_fmt", "yuv420p", options);
2261 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2263 opt_default(NULL, "b:v", "2040000");
2264 opt_default(NULL, "maxrate", "2516000");
2265 opt_default(NULL, "minrate", "0"); // 1145000;
2266 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2267 opt_default(NULL, "scan_offset", "1");
2269 opt_default(NULL, "b:a", "224000");
2270 parse_option(o, "ar", "44100", options);
2272 opt_default(NULL, "packetsize", "2324");
2274 } else if (!strcmp(arg, "dvd")) {
2276 opt_video_codec(o, "c:v", "mpeg2video");
2277 opt_audio_codec(o, "c:a", "ac3");
2278 parse_option(o, "f", "dvd", options);
2280 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2281 parse_option(o, "r", frame_rates[norm], options);
2282 parse_option(o, "pix_fmt", "yuv420p", options);
2283 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2285 opt_default(NULL, "b:v", "6000000");
2286 opt_default(NULL, "maxrate", "9000000");
2287 opt_default(NULL, "minrate", "0"); // 1500000;
2288 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2290 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2291 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2293 opt_default(NULL, "b:a", "448000");
2294 parse_option(o, "ar", "48000", options);
2296 } else if (!strncmp(arg, "dv", 2)) {
2298 parse_option(o, "f", "dv", options);
2300 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2301 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2302 norm == PAL ? "yuv420p" : "yuv411p", options);
2303 parse_option(o, "r", frame_rates[norm], options);
2305 parse_option(o, "ar", "48000", options);
2306 parse_option(o, "ac", "2", options);
2309 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2310 return AVERROR(EINVAL);
2313 av_dict_copy(&o->g->codec_opts, codec_opts, AV_DICT_DONT_OVERWRITE);
2314 av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
2319 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2321 av_free (vstats_filename);
2322 vstats_filename = av_strdup (arg);
2326 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2329 time_t today2 = time(NULL);
2330 struct tm *today = localtime(&today2);
2332 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2334 return opt_vstats_file(NULL, opt, filename);
2337 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2339 OptionsContext *o = optctx;
2340 return parse_option(o, "frames:v", arg, options);
2343 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2345 OptionsContext *o = optctx;
2346 return parse_option(o, "frames:a", arg, options);
2349 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2351 OptionsContext *o = optctx;
2352 return parse_option(o, "frames:d", arg, options);
2355 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2358 AVDictionary *cbak = codec_opts;
2359 AVDictionary *fbak = format_opts;
2363 ret = opt_default(NULL, opt, arg);
2365 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2366 av_dict_copy(&o->g->format_opts, format_opts, 0);
2367 av_dict_free(&codec_opts);
2368 av_dict_free(&format_opts);
2375 static int opt_preset(void *optctx, const char *opt, const char *arg)
2377 OptionsContext *o = optctx;
2379 char filename[1000], line[1000], tmp_line[1000];
2380 const char *codec_name = NULL;
2384 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2386 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2387 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2388 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2390 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2394 while (fgets(line, sizeof(line), f)) {
2395 char *key = tmp_line, *value, *endptr;
2397 if (strcspn(line, "#\n\r") == 0)
2399 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2400 if (!av_strtok(key, "=", &value) ||
2401 !av_strtok(value, "\r\n", &endptr)) {
2402 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2405 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2407 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2408 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2409 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2410 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2411 else if (opt_default_new(o, key, value) < 0) {
2412 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2413 filename, line, key, value);
2423 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2425 OptionsContext *o = optctx;
2426 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2427 int ret = parse_option(o, s, arg, options);
2432 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2434 OptionsContext *o = optctx;
2436 if(!strcmp(opt, "ab")){
2437 av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
2439 } else if(!strcmp(opt, "b")){
2440 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2441 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2444 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2448 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2450 OptionsContext *o = optctx;
2453 if(!strcmp(opt, "qscale")){
2454 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2455 return parse_option(o, "q:v", arg, options);
2457 s = av_asprintf("q%s", opt + 6);
2458 ret = parse_option(o, s, arg, options);
2463 static int opt_profile(void *optctx, const char *opt, const char *arg)
2465 OptionsContext *o = optctx;
2466 if(!strcmp(opt, "profile")){
2467 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2468 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2471 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2475 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2477 OptionsContext *o = optctx;
2478 return parse_option(o, "filter:v", arg, options);
2481 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2483 OptionsContext *o = optctx;
2484 return parse_option(o, "filter:a", arg, options);
2487 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2489 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2490 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2491 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2492 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2494 if (video_sync_method == VSYNC_AUTO)
2495 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2499 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2501 OptionsContext *o = optctx;
2502 char *tcr = av_asprintf("timecode=%s", arg);
2503 int ret = parse_option(o, "metadata:g", tcr, options);
2505 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2510 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2512 OptionsContext *o = optctx;
2513 char layout_str[32];
2516 int ret, channels, ac_str_size;
2519 layout = av_get_channel_layout(arg);
2521 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2522 return AVERROR(EINVAL);
2524 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2525 ret = opt_default_new(o, opt, layout_str);
2529 /* set 'ac' option based on channel layout */
2530 channels = av_get_channel_layout_nb_channels(layout);
2531 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2532 stream_str = strchr(opt, ':');
2533 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2534 ac_str = av_mallocz(ac_str_size);
2536 return AVERROR(ENOMEM);
2537 av_strlcpy(ac_str, "ac", 3);
2539 av_strlcat(ac_str, stream_str, ac_str_size);
2540 ret = parse_option(o, ac_str, layout_str, options);
2546 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2548 OptionsContext *o = optctx;
2549 return parse_option(o, "q:a", arg, options);
2552 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2554 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2555 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2556 return AVERROR(ENOMEM);
2557 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2558 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2559 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2560 return AVERROR(ENOMEM);
2564 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2566 uint8_t *graph_desc = read_file(arg);
2568 return AVERROR(EINVAL);
2570 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2571 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2572 return AVERROR(ENOMEM);
2573 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2574 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2578 void show_help_default(const char *opt, const char *arg)
2580 /* per-file options have at least one of those set */
2581 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2582 int show_advanced = 0, show_avoptions = 0;
2585 if (!strcmp(opt, "long"))
2587 else if (!strcmp(opt, "full"))
2588 show_advanced = show_avoptions = 1;
2590 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2595 printf("Getting help:\n"
2596 " -h -- print basic options\n"
2597 " -h long -- print more options\n"
2598 " -h full -- print all options (including all format and codec specific options, very long)\n"
2599 " See man %s for detailed description of the options.\n"
2600 "\n", program_name);
2602 show_help_options(options, "Print help / information / capabilities:",
2605 show_help_options(options, "Global options (affect whole program "
2606 "instead of just one file:",
2607 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2609 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2610 per_file | OPT_EXIT, 0);
2612 show_help_options(options, "Per-file main options:", 0,
2613 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2614 OPT_EXIT, per_file);
2616 show_help_options(options, "Advanced per-file options:",
2617 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2619 show_help_options(options, "Video options:",
2620 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2622 show_help_options(options, "Advanced Video options:",
2623 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2625 show_help_options(options, "Audio options:",
2626 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2628 show_help_options(options, "Advanced Audio options:",
2629 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2630 show_help_options(options, "Subtitle options:",
2631 OPT_SUBTITLE, 0, 0);
2634 if (show_avoptions) {
2635 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2636 show_help_children(avcodec_get_class(), flags);
2637 show_help_children(avformat_get_class(), flags);
2639 show_help_children(sws_get_class(), flags);
2641 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2642 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2646 void show_usage(void)
2648 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2649 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2650 av_log(NULL, AV_LOG_INFO, "\n");
2658 static const OptionGroupDef groups[] = {
2659 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2660 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2663 static int open_files(OptionGroupList *l, const char *inout,
2664 int (*open_file)(OptionsContext*, const char*))
2668 for (i = 0; i < l->nb_groups; i++) {
2669 OptionGroup *g = &l->groups[i];
2675 ret = parse_optgroup(&o, g);
2677 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2678 "%s.\n", inout, g->arg);
2682 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2683 ret = open_file(&o, g->arg);
2686 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2690 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2696 int ffmpeg_parse_options(int argc, char **argv)
2698 OptionParseContext octx;
2702 memset(&octx, 0, sizeof(octx));
2704 /* split the commandline into an internal representation */
2705 ret = split_commandline(&octx, argc, argv, options, groups,
2706 FF_ARRAY_ELEMS(groups));
2708 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2712 /* apply global options */
2713 ret = parse_optgroup(NULL, &octx.global_opts);
2715 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2719 /* open input files */
2720 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2722 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2726 /* open output files */
2727 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2729 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2734 uninit_parse_context(&octx);
2736 av_strerror(ret, error, sizeof(error));
2737 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2742 static int opt_progress(void *optctx, const char *opt, const char *arg)
2744 AVIOContext *avio = NULL;
2747 if (!strcmp(arg, "-"))
2749 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2751 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2752 arg, av_err2str(ret));
2755 progress_avio = avio;
2759 #define OFFSET(x) offsetof(OptionsContext, x)
2760 const OptionDef options[] = {
2762 #include "cmdutils_common_opts.h"
2763 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2764 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2765 "force format", "fmt" },
2766 { "y", OPT_BOOL, { &file_overwrite },
2767 "overwrite output files" },
2768 { "n", OPT_BOOL, { &no_file_overwrite },
2769 "never overwrite output files" },
2770 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2771 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2772 "codec name", "codec" },
2773 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2774 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2775 "codec name", "codec" },
2776 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2777 OPT_OUTPUT, { .off = OFFSET(presets) },
2778 "preset name", "preset" },
2779 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2780 OPT_OUTPUT, { .func_arg = opt_map },
2781 "set input stream mapping",
2782 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2783 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2784 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2785 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2786 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2787 "set metadata information of outfile from infile",
2788 "outfile[,metadata]:infile[,metadata]" },
2789 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2790 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2791 "set chapters mapping", "input_file_index" },
2792 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2793 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2794 "record or transcode \"duration\" seconds of audio/video",
2796 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2797 "record or transcode stop time", "time_stop" },
2798 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2799 "set the limit file size in bytes", "limit_size" },
2800 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2801 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2802 "set the start time offset", "time_off" },
2803 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2804 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2805 "enable/disable accurate seeking with -ss" },
2806 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2807 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2808 "set the input ts offset", "time_off" },
2809 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2810 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2811 "set the input ts scale", "scale" },
2812 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2813 "set the recording timestamp ('now' to set the current time)", "time" },
2814 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2815 "add metadata", "string=string" },
2816 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2817 OPT_OUTPUT, { .func_arg = opt_data_frames },
2818 "set the number of data frames to record", "number" },
2819 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2820 "add timings for benchmarking" },
2821 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2822 "add timings for each task" },
2823 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2824 "write program-readable progress information", "url" },
2825 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2826 "enable or disable interaction on standard input" },
2827 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2828 "set max runtime in seconds", "limit" },
2829 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2830 "dump each input packet" },
2831 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2832 "when dumping packets, also dump the payload" },
2833 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2834 OPT_INPUT, { .off = OFFSET(rate_emu) },
2835 "read input at native frame rate", "" },
2836 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2837 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2838 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2839 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2840 "video sync method", "" },
2841 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2842 "audio sync method", "" },
2843 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2844 "audio drift threshold", "threshold" },
2845 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2846 "copy timestamps" },
2847 { "start_at_zero", OPT_BOOL | OPT_EXPERT, { &start_at_zero },
2848 "shift input timestamps to start at 0 when using copyts" },
2849 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2850 "copy input stream time base when stream copying", "mode" },
2851 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2852 OPT_OUTPUT, { .off = OFFSET(shortest) },
2853 "finish encoding within shortest input" },
2854 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2855 OPT_OUTPUT, { .off = OFFSET(apad) },
2857 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2858 "timestamp discontinuity delta threshold", "threshold" },
2859 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2860 "timestamp error delta threshold", "threshold" },
2861 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2862 "exit on error", "error" },
2863 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2864 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2865 "copy initial non-keyframes" },
2866 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2867 "copy or discard frames before start time" },
2868 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2869 "set the number of frames to record", "number" },
2870 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2871 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2872 "force codec tag/fourcc", "fourcc/tag" },
2873 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2874 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2875 "use fixed quality scale (VBR)", "q" },
2876 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2877 OPT_OUTPUT, { .func_arg = opt_qscale },
2878 "use fixed quality scale (VBR)", "q" },
2879 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2880 "set profile", "profile" },
2881 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2882 "set stream filtergraph", "filter_graph" },
2883 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2884 "read stream filtergraph description from a file", "filename" },
2885 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2886 "reinit filtergraph on input parameter changes", "" },
2887 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2888 "create a complex filtergraph", "graph_description" },
2889 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2890 "create a complex filtergraph", "graph_description" },
2891 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2892 "read complex filtergraph description from a file", "filename" },
2893 { "stats", OPT_BOOL, { &print_stats },
2894 "print progress report during encoding", },
2895 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2896 OPT_OUTPUT, { .func_arg = opt_attach },
2897 "add an attachment to the output file", "filename" },
2898 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2899 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2900 "extract an attachment into a file", "filename" },
2901 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2902 "print timestamp debugging info" },
2903 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2904 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2905 { "discard", OPT_STRING | HAS_ARG | OPT_SPEC |
2906 OPT_INPUT, { .off = OFFSET(discard) },
2910 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2911 "set the number of video frames to record", "number" },
2912 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2913 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2914 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2915 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2916 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2917 "set frame size (WxH or abbreviation)", "size" },
2918 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2919 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2920 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2921 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2922 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2923 "set pixel format", "format" },
2924 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2925 "set the number of bits per raw sample", "number" },
2926 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2927 "deprecated use -g 1" },
2928 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2930 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2931 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2932 "rate control override for specific intervals", "override" },
2933 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2934 OPT_OUTPUT, { .func_arg = opt_video_codec },
2935 "force video codec ('copy' to copy stream)", "codec" },
2936 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2938 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2940 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2941 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2942 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2943 "select the pass number (1 to 3)", "n" },
2944 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2945 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2946 "select two pass log file name prefix", "prefix" },
2947 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2948 "this option is deprecated, use the yadif filter instead" },
2949 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2950 "calculate PSNR of compressed frames" },
2951 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2952 "dump video coding statistics to file" },
2953 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2954 "dump video coding statistics to file", "file" },
2955 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2956 "set video filters", "filter_graph" },
2957 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2958 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2959 "specify intra matrix coeffs", "matrix" },
2960 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2961 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2962 "specify inter matrix coeffs", "matrix" },
2963 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2964 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
2965 "specify intra matrix coeffs", "matrix" },
2966 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2967 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2968 "top=1/bottom=0/auto=-1 field first", "" },
2969 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2970 OPT_OUTPUT, { .func_arg = opt_old2new },
2971 "force video tag/fourcc", "fourcc/tag" },
2972 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2973 "show QP histogram" },
2974 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2975 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2976 "force the selected framerate, disable the best supported framerate selection" },
2977 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2978 OPT_OUTPUT, { .func_arg = opt_streamid },
2979 "set the value of an outfile streamid", "streamIndex:value" },
2980 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2981 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2982 "force key frames at specified timestamps", "timestamps" },
2983 { "ab", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2984 "audio bitrate (please use -b:a)", "bitrate" },
2985 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2986 "video bitrate (please use -b:v)", "bitrate" },
2987 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2988 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2989 "use HW accelerated decoding", "hwaccel name" },
2990 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2991 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2992 "select a device for HW acceleration" "devicename" },
2994 { "vdpau_api_ver", HAS_ARG | OPT_INT | OPT_EXPERT, { &vdpau_api_ver }, "" },
2998 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2999 "set the number of audio frames to record", "number" },
3000 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
3001 "set audio quality (codec-specific)", "quality", },
3002 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3003 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
3004 "set audio sampling rate (in Hz)", "rate" },
3005 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3006 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
3007 "set number of audio channels", "channels" },
3008 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
3010 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
3011 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
3012 "force audio codec ('copy' to copy stream)", "codec" },
3013 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3014 OPT_OUTPUT, { .func_arg = opt_old2new },
3015 "force audio tag/fourcc", "fourcc/tag" },
3016 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
3017 "change audio volume (256=normal)" , "volume" },
3018 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
3019 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
3020 "set sample format", "format" },
3021 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3022 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
3023 "set channel layout", "layout" },
3024 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
3025 "set audio filters", "filter_graph" },
3026 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
3027 "set the maximum number of channels to try to guess the channel layout" },
3029 /* subtitle options */
3030 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
3031 "disable subtitle" },
3032 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
3033 "force subtitle codec ('copy' to copy stream)", "codec" },
3034 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
3035 , "force subtitle tag/fourcc", "fourcc/tag" },
3036 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
3037 "fix subtitles duration" },
3038 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
3039 "set canvas size (WxH or abbreviation)", "size" },
3042 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
3043 "deprecated, use -channel", "channel" },
3044 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
3045 "deprecated, use -standard", "standard" },
3046 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
3049 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
3050 "set the maximum demux-decode delay", "seconds" },
3051 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
3052 "set the initial demux-decode delay", "seconds" },
3053 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
3054 "override the options from ffserver", "" },
3056 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
3057 "A comma-separated list of bitstream filters", "bitstream_filters" },
3058 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3059 "deprecated", "audio bitstream_filters" },
3060 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3061 "deprecated", "video bitstream_filters" },
3063 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3064 "set the audio options to the indicated preset", "preset" },
3065 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3066 "set the video options to the indicated preset", "preset" },
3067 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3068 "set the subtitle options to the indicated preset", "preset" },
3069 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3070 "set options from indicated preset file", "filename" },
3071 /* data codec support */
3072 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
3073 "force data codec ('copy' to copy stream)", "codec" },
3074 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },