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);
1652 if (ost->enc_ctx->priv_data) {
1653 av_opt_free(ost->enc_ctx->priv_data);
1654 av_freep(&ost->enc_ctx->priv_data);
1658 avformat_close_input(&ic);
1662 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1663 AVFormatContext *oc)
1667 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1668 ofilter->out_tmp->pad_idx)) {
1669 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1670 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1672 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1677 ost->source_index = -1;
1678 ost->filter = ofilter;
1682 if (ost->stream_copy) {
1683 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1684 "which is fed from a complex filtergraph. Filtering and streamcopy "
1685 "cannot be used together.\n", ost->file_index, ost->index);
1689 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1690 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1691 av_log(NULL, AV_LOG_ERROR,
1692 "%s '%s' was specified through the %s option "
1693 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1694 "%s and -filter_complex cannot be used together for the same stream.\n",
1695 ost->filters ? "Filtergraph" : "Filtergraph script",
1696 ost->filters ? ost->filters : ost->filters_script,
1697 opt, ost->file_index, ost->index, opt);
1701 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1702 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1705 avfilter_inout_free(&ofilter->out_tmp);
1708 static int configure_complex_filters(void)
1712 for (i = 0; i < nb_filtergraphs; i++)
1713 if (!filtergraphs[i]->graph &&
1714 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1719 static int open_output_file(OptionsContext *o, const char *filename)
1721 AVFormatContext *oc;
1723 AVOutputFormat *file_oformat;
1727 AVDictionary *unused_opts = NULL;
1728 AVDictionaryEntry *e = NULL;
1730 if (configure_complex_filters() < 0) {
1731 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1735 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1736 o->stop_time = INT64_MAX;
1737 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1740 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1741 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1742 if (o->stop_time <= start_time) {
1743 av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
1746 o->recording_time = o->stop_time - start_time;
1750 GROW_ARRAY(output_files, nb_output_files);
1751 of = av_mallocz(sizeof(*of));
1754 output_files[nb_output_files - 1] = of;
1756 of->ost_index = nb_output_streams;
1757 of->recording_time = o->recording_time;
1758 of->start_time = o->start_time;
1759 of->limit_filesize = o->limit_filesize;
1760 of->shortest = o->shortest;
1761 av_dict_copy(&of->opts, o->g->format_opts, 0);
1763 if (!strcmp(filename, "-"))
1766 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1768 print_error(filename, err);
1773 if (o->recording_time != INT64_MAX)
1774 oc->duration = o->recording_time;
1776 file_oformat= oc->oformat;
1777 oc->interrupt_callback = int_cb;
1779 /* create streams for all unlabeled output pads */
1780 for (i = 0; i < nb_filtergraphs; i++) {
1781 FilterGraph *fg = filtergraphs[i];
1782 for (j = 0; j < fg->nb_outputs; j++) {
1783 OutputFilter *ofilter = fg->outputs[j];
1785 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1788 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1789 ofilter->out_tmp->pad_idx)) {
1790 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1791 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1792 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1794 init_output_filter(ofilter, o, oc);
1798 /* ffserver seeking with date=... needs a date reference */
1799 if (!strcmp(file_oformat->name, "ffm") &&
1800 av_strstart(filename, "http:", NULL)) {
1801 int err = parse_option(o, "metadata", "creation_time=now", options);
1803 print_error(filename, err);
1808 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1809 av_strstart(filename, "http:", NULL)) {
1811 /* special case for files sent to ffserver: we get the stream
1812 parameters from ffserver */
1813 int err = read_ffserver_streams(o, oc, filename);
1815 print_error(filename, err);
1818 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1819 ost = output_streams[j];
1820 for (i = 0; i < nb_input_streams; i++) {
1821 ist = input_streams[i];
1822 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1824 ost->source_index= i;
1825 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1826 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1828 ist->st->discard = ist->user_set_discard;
1833 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));
1837 } else if (!o->nb_stream_maps) {
1838 char *subtitle_codec_name = NULL;
1839 /* pick the "best" stream of each type */
1841 /* video: highest resolution */
1842 if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
1843 int area = 0, idx = -1;
1844 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1845 for (i = 0; i < nb_input_streams; i++) {
1847 ist = input_streams[i];
1848 new_area = ist->st->codec->width * ist->st->codec->height;
1849 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1851 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1853 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1860 new_video_stream(o, oc, idx);
1863 /* audio: most channels */
1864 if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
1865 int channels = 0, idx = -1;
1866 for (i = 0; i < nb_input_streams; i++) {
1867 ist = input_streams[i];
1868 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1869 ist->st->codec->channels > channels) {
1870 channels = ist->st->codec->channels;
1875 new_audio_stream(o, oc, idx);
1878 /* subtitles: pick first */
1879 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1880 if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
1881 for (i = 0; i < nb_input_streams; i++)
1882 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1883 AVCodecDescriptor const *input_descriptor =
1884 avcodec_descriptor_get(input_streams[i]->st->codec->codec_id);
1885 AVCodecDescriptor const *output_descriptor = NULL;
1886 AVCodec const *output_codec =
1887 avcodec_find_encoder(oc->oformat->subtitle_codec);
1888 int input_props = 0, output_props = 0;
1890 output_descriptor = avcodec_descriptor_get(output_codec->id);
1891 if (input_descriptor)
1892 input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
1893 if (output_descriptor)
1894 output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
1895 if (subtitle_codec_name ||
1896 input_props & output_props ||
1897 // Map dvb teletext which has neither property to any output subtitle encoder
1898 input_descriptor && output_descriptor &&
1899 (!input_descriptor->props ||
1900 !output_descriptor->props)) {
1901 new_subtitle_stream(o, oc, i);
1906 /* do something with data? */
1908 for (i = 0; i < o->nb_stream_maps; i++) {
1909 StreamMap *map = &o->stream_maps[i];
1914 if (map->linklabel) {
1916 OutputFilter *ofilter = NULL;
1919 for (j = 0; j < nb_filtergraphs; j++) {
1920 fg = filtergraphs[j];
1921 for (k = 0; k < fg->nb_outputs; k++) {
1922 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1923 if (out && !strcmp(out->name, map->linklabel)) {
1924 ofilter = fg->outputs[k];
1931 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1932 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1935 init_output_filter(ofilter, o, oc);
1937 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1939 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1940 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1942 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1944 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1946 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1949 switch (ist->st->codec->codec_type) {
1950 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1951 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1952 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1953 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1954 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1956 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1957 map->file_index, map->stream_index);
1964 /* handle attached files */
1965 for (i = 0; i < o->nb_attachments; i++) {
1967 uint8_t *attachment;
1971 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1972 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1976 if ((len = avio_size(pb)) <= 0) {
1977 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1981 if (!(attachment = av_malloc(len))) {
1982 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1986 avio_read(pb, attachment, len);
1988 ost = new_attachment_stream(o, oc, -1);
1989 ost->stream_copy = 0;
1990 ost->attachment_filename = o->attachments[i];
1992 ost->enc_ctx->extradata = attachment;
1993 ost->enc_ctx->extradata_size = len;
1995 p = strrchr(o->attachments[i], '/');
1996 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
2000 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
2001 AVDictionaryEntry *e;
2002 ost = output_streams[i];
2004 if ((ost->stream_copy || ost->attachment_filename)
2005 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
2006 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
2007 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
2011 /* check if all codec options have been used */
2012 unused_opts = strip_specifiers(o->g->codec_opts);
2013 for (i = of->ost_index; i < nb_output_streams; i++) {
2015 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
2016 AV_DICT_IGNORE_SUFFIX)))
2017 av_dict_set(&unused_opts, e->key, NULL, 0);
2021 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
2022 const AVClass *class = avcodec_get_class();
2023 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
2024 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2025 const AVClass *fclass = avformat_get_class();
2026 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
2027 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
2028 if (!option || foption)
2032 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
2033 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
2034 "output file #%d (%s) is not an encoding option.\n", e->key,
2035 option->help ? option->help : "", nb_output_files - 1,
2040 // gop_timecode is injected by generic code but not always used
2041 if (!strcmp(e->key, "gop_timecode"))
2044 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
2045 "output file #%d (%s) has not been used for any stream. The most "
2046 "likely reason is either wrong type (e.g. a video option with "
2047 "no video streams) or that it is a private option of some encoder "
2048 "which was not actually used for any stream.\n", e->key,
2049 option->help ? option->help : "", nb_output_files - 1, filename);
2051 av_dict_free(&unused_opts);
2053 /* check filename in case of an image number is expected */
2054 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2055 if (!av_filename_number_test(oc->filename)) {
2056 print_error(oc->filename, AVERROR(EINVAL));
2061 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2062 /* test if it already exists to avoid losing precious files */
2063 assert_file_overwrite(filename);
2066 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
2067 &oc->interrupt_callback,
2069 print_error(filename, err);
2072 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
2073 assert_file_overwrite(filename);
2075 if (o->mux_preload) {
2076 av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
2078 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2081 for (i = 0; i < o->nb_metadata_map; i++) {
2083 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2085 if (in_file_index >= nb_input_files) {
2086 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2089 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2090 in_file_index >= 0 ?
2091 input_files[in_file_index]->ctx : NULL, o);
2095 if (o->chapters_input_file >= nb_input_files) {
2096 if (o->chapters_input_file == INT_MAX) {
2097 /* copy chapters from the first input file that has them*/
2098 o->chapters_input_file = -1;
2099 for (i = 0; i < nb_input_files; i++)
2100 if (input_files[i]->ctx->nb_chapters) {
2101 o->chapters_input_file = i;
2105 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2106 o->chapters_input_file);
2110 if (o->chapters_input_file >= 0)
2111 copy_chapters(input_files[o->chapters_input_file], of,
2112 !o->metadata_chapters_manual);
2114 /* copy global metadata by default */
2115 if (!o->metadata_global_manual && nb_input_files){
2116 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2117 AV_DICT_DONT_OVERWRITE);
2118 if(o->recording_time != INT64_MAX)
2119 av_dict_set(&oc->metadata, "duration", NULL, 0);
2120 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2122 if (!o->metadata_streams_manual)
2123 for (i = of->ost_index; i < nb_output_streams; i++) {
2125 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2127 ist = input_streams[output_streams[i]->source_index];
2128 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2129 if (!output_streams[i]->stream_copy)
2130 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
2133 /* process manually set metadata */
2134 for (i = 0; i < o->nb_metadata; i++) {
2137 const char *stream_spec;
2138 int index = 0, j, ret = 0;
2140 val = strchr(o->metadata[i].u.str, '=');
2142 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2143 o->metadata[i].u.str);
2148 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2150 for (j = 0; j < oc->nb_streams; j++) {
2151 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2152 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2163 if (index < 0 || index >= oc->nb_chapters) {
2164 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2167 m = &oc->chapters[index]->metadata;
2170 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2173 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2180 static int opt_target(void *optctx, const char *opt, const char *arg)
2182 OptionsContext *o = optctx;
2183 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2184 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2186 if (!strncmp(arg, "pal-", 4)) {
2189 } else if (!strncmp(arg, "ntsc-", 5)) {
2192 } else if (!strncmp(arg, "film-", 5)) {
2196 /* Try to determine PAL/NTSC by peeking in the input files */
2197 if (nb_input_files) {
2199 for (j = 0; j < nb_input_files; j++) {
2200 for (i = 0; i < input_files[j]->nb_streams; i++) {
2201 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2202 if (c->codec_type != AVMEDIA_TYPE_VIDEO ||
2205 fr = c->time_base.den * 1000 / c->time_base.num;
2209 } else if ((fr == 29970) || (fr == 23976)) {
2214 if (norm != UNKNOWN)
2218 if (norm != UNKNOWN)
2219 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2222 if (norm == UNKNOWN) {
2223 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2224 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2225 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2229 if (!strcmp(arg, "vcd")) {
2230 opt_video_codec(o, "c:v", "mpeg1video");
2231 opt_audio_codec(o, "c:a", "mp2");
2232 parse_option(o, "f", "vcd", options);
2234 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2235 parse_option(o, "r", frame_rates[norm], options);
2236 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2238 opt_default(NULL, "b:v", "1150000");
2239 opt_default(NULL, "maxrate", "1150000");
2240 opt_default(NULL, "minrate", "1150000");
2241 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
2243 opt_default(NULL, "b:a", "224000");
2244 parse_option(o, "ar", "44100", options);
2245 parse_option(o, "ac", "2", options);
2247 opt_default(NULL, "packetsize", "2324");
2248 opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
2250 /* We have to offset the PTS, so that it is consistent with the SCR.
2251 SCR starts at 36000, but the first two packs contain only padding
2252 and the first pack from the other stream, respectively, may also have
2253 been written before.
2254 So the real data starts at SCR 36000+3*1200. */
2255 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2256 } else if (!strcmp(arg, "svcd")) {
2258 opt_video_codec(o, "c:v", "mpeg2video");
2259 opt_audio_codec(o, "c:a", "mp2");
2260 parse_option(o, "f", "svcd", options);
2262 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2263 parse_option(o, "r", frame_rates[norm], options);
2264 parse_option(o, "pix_fmt", "yuv420p", options);
2265 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2267 opt_default(NULL, "b:v", "2040000");
2268 opt_default(NULL, "maxrate", "2516000");
2269 opt_default(NULL, "minrate", "0"); // 1145000;
2270 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2271 opt_default(NULL, "scan_offset", "1");
2273 opt_default(NULL, "b:a", "224000");
2274 parse_option(o, "ar", "44100", options);
2276 opt_default(NULL, "packetsize", "2324");
2278 } else if (!strcmp(arg, "dvd")) {
2280 opt_video_codec(o, "c:v", "mpeg2video");
2281 opt_audio_codec(o, "c:a", "ac3");
2282 parse_option(o, "f", "dvd", options);
2284 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2285 parse_option(o, "r", frame_rates[norm], options);
2286 parse_option(o, "pix_fmt", "yuv420p", options);
2287 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2289 opt_default(NULL, "b:v", "6000000");
2290 opt_default(NULL, "maxrate", "9000000");
2291 opt_default(NULL, "minrate", "0"); // 1500000;
2292 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2294 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2295 opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2297 opt_default(NULL, "b:a", "448000");
2298 parse_option(o, "ar", "48000", options);
2300 } else if (!strncmp(arg, "dv", 2)) {
2302 parse_option(o, "f", "dv", options);
2304 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2305 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2306 norm == PAL ? "yuv420p" : "yuv411p", options);
2307 parse_option(o, "r", frame_rates[norm], options);
2309 parse_option(o, "ar", "48000", options);
2310 parse_option(o, "ac", "2", options);
2313 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2314 return AVERROR(EINVAL);
2317 av_dict_copy(&o->g->codec_opts, codec_opts, AV_DICT_DONT_OVERWRITE);
2318 av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
2323 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2325 av_free (vstats_filename);
2326 vstats_filename = av_strdup (arg);
2330 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2333 time_t today2 = time(NULL);
2334 struct tm *today = localtime(&today2);
2336 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2338 return opt_vstats_file(NULL, opt, filename);
2341 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2343 OptionsContext *o = optctx;
2344 return parse_option(o, "frames:v", arg, options);
2347 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2349 OptionsContext *o = optctx;
2350 return parse_option(o, "frames:a", arg, options);
2353 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2355 OptionsContext *o = optctx;
2356 return parse_option(o, "frames:d", arg, options);
2359 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2362 AVDictionary *cbak = codec_opts;
2363 AVDictionary *fbak = format_opts;
2367 ret = opt_default(NULL, opt, arg);
2369 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2370 av_dict_copy(&o->g->format_opts, format_opts, 0);
2371 av_dict_free(&codec_opts);
2372 av_dict_free(&format_opts);
2379 static int opt_preset(void *optctx, const char *opt, const char *arg)
2381 OptionsContext *o = optctx;
2383 char filename[1000], line[1000], tmp_line[1000];
2384 const char *codec_name = NULL;
2388 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2390 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2391 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2392 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2394 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2398 while (fgets(line, sizeof(line), f)) {
2399 char *key = tmp_line, *value, *endptr;
2401 if (strcspn(line, "#\n\r") == 0)
2403 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2404 if (!av_strtok(key, "=", &value) ||
2405 !av_strtok(value, "\r\n", &endptr)) {
2406 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2409 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2411 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2412 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2413 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2414 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2415 else if (opt_default_new(o, key, value) < 0) {
2416 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2417 filename, line, key, value);
2427 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2429 OptionsContext *o = optctx;
2430 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2431 int ret = parse_option(o, s, arg, options);
2436 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2438 OptionsContext *o = optctx;
2440 if(!strcmp(opt, "ab")){
2441 av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
2443 } else if(!strcmp(opt, "b")){
2444 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2445 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2448 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2452 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2454 OptionsContext *o = optctx;
2457 if(!strcmp(opt, "qscale")){
2458 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2459 return parse_option(o, "q:v", arg, options);
2461 s = av_asprintf("q%s", opt + 6);
2462 ret = parse_option(o, s, arg, options);
2467 static int opt_profile(void *optctx, const char *opt, const char *arg)
2469 OptionsContext *o = optctx;
2470 if(!strcmp(opt, "profile")){
2471 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2472 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2475 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2479 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2481 OptionsContext *o = optctx;
2482 return parse_option(o, "filter:v", arg, options);
2485 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2487 OptionsContext *o = optctx;
2488 return parse_option(o, "filter:a", arg, options);
2491 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2493 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2494 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2495 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2496 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2498 if (video_sync_method == VSYNC_AUTO)
2499 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2503 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2505 OptionsContext *o = optctx;
2506 char *tcr = av_asprintf("timecode=%s", arg);
2507 int ret = parse_option(o, "metadata:g", tcr, options);
2509 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2514 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2516 OptionsContext *o = optctx;
2517 char layout_str[32];
2520 int ret, channels, ac_str_size;
2523 layout = av_get_channel_layout(arg);
2525 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2526 return AVERROR(EINVAL);
2528 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2529 ret = opt_default_new(o, opt, layout_str);
2533 /* set 'ac' option based on channel layout */
2534 channels = av_get_channel_layout_nb_channels(layout);
2535 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2536 stream_str = strchr(opt, ':');
2537 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2538 ac_str = av_mallocz(ac_str_size);
2540 return AVERROR(ENOMEM);
2541 av_strlcpy(ac_str, "ac", 3);
2543 av_strlcat(ac_str, stream_str, ac_str_size);
2544 ret = parse_option(o, ac_str, layout_str, options);
2550 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2552 OptionsContext *o = optctx;
2553 return parse_option(o, "q:a", arg, options);
2556 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2558 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2559 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2560 return AVERROR(ENOMEM);
2561 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2562 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2563 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2564 return AVERROR(ENOMEM);
2568 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2570 uint8_t *graph_desc = read_file(arg);
2572 return AVERROR(EINVAL);
2574 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2575 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2576 return AVERROR(ENOMEM);
2577 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2578 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2582 void show_help_default(const char *opt, const char *arg)
2584 /* per-file options have at least one of those set */
2585 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2586 int show_advanced = 0, show_avoptions = 0;
2589 if (!strcmp(opt, "long"))
2591 else if (!strcmp(opt, "full"))
2592 show_advanced = show_avoptions = 1;
2594 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2599 printf("Getting help:\n"
2600 " -h -- print basic options\n"
2601 " -h long -- print more options\n"
2602 " -h full -- print all options (including all format and codec specific options, very long)\n"
2603 " See man %s for detailed description of the options.\n"
2604 "\n", program_name);
2606 show_help_options(options, "Print help / information / capabilities:",
2609 show_help_options(options, "Global options (affect whole program "
2610 "instead of just one file:",
2611 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2613 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2614 per_file | OPT_EXIT, 0);
2616 show_help_options(options, "Per-file main options:", 0,
2617 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2618 OPT_EXIT, per_file);
2620 show_help_options(options, "Advanced per-file options:",
2621 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2623 show_help_options(options, "Video options:",
2624 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2626 show_help_options(options, "Advanced Video options:",
2627 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2629 show_help_options(options, "Audio options:",
2630 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2632 show_help_options(options, "Advanced Audio options:",
2633 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2634 show_help_options(options, "Subtitle options:",
2635 OPT_SUBTITLE, 0, 0);
2638 if (show_avoptions) {
2639 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2640 show_help_children(avcodec_get_class(), flags);
2641 show_help_children(avformat_get_class(), flags);
2643 show_help_children(sws_get_class(), flags);
2645 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2646 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2650 void show_usage(void)
2652 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2653 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2654 av_log(NULL, AV_LOG_INFO, "\n");
2662 static const OptionGroupDef groups[] = {
2663 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2664 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2667 static int open_files(OptionGroupList *l, const char *inout,
2668 int (*open_file)(OptionsContext*, const char*))
2672 for (i = 0; i < l->nb_groups; i++) {
2673 OptionGroup *g = &l->groups[i];
2679 ret = parse_optgroup(&o, g);
2681 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2682 "%s.\n", inout, g->arg);
2686 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2687 ret = open_file(&o, g->arg);
2690 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2694 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2700 int ffmpeg_parse_options(int argc, char **argv)
2702 OptionParseContext octx;
2706 memset(&octx, 0, sizeof(octx));
2708 /* split the commandline into an internal representation */
2709 ret = split_commandline(&octx, argc, argv, options, groups,
2710 FF_ARRAY_ELEMS(groups));
2712 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2716 /* apply global options */
2717 ret = parse_optgroup(NULL, &octx.global_opts);
2719 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2723 /* open input files */
2724 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2726 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2730 /* open output files */
2731 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2733 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2738 uninit_parse_context(&octx);
2740 av_strerror(ret, error, sizeof(error));
2741 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2746 static int opt_progress(void *optctx, const char *opt, const char *arg)
2748 AVIOContext *avio = NULL;
2751 if (!strcmp(arg, "-"))
2753 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2755 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2756 arg, av_err2str(ret));
2759 progress_avio = avio;
2763 #define OFFSET(x) offsetof(OptionsContext, x)
2764 const OptionDef options[] = {
2766 #include "cmdutils_common_opts.h"
2767 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2768 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2769 "force format", "fmt" },
2770 { "y", OPT_BOOL, { &file_overwrite },
2771 "overwrite output files" },
2772 { "n", OPT_BOOL, { &no_file_overwrite },
2773 "never overwrite output files" },
2774 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2775 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2776 "codec name", "codec" },
2777 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2778 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2779 "codec name", "codec" },
2780 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2781 OPT_OUTPUT, { .off = OFFSET(presets) },
2782 "preset name", "preset" },
2783 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2784 OPT_OUTPUT, { .func_arg = opt_map },
2785 "set input stream mapping",
2786 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2787 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2788 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2789 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2790 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2791 "set metadata information of outfile from infile",
2792 "outfile[,metadata]:infile[,metadata]" },
2793 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2794 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2795 "set chapters mapping", "input_file_index" },
2796 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2797 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2798 "record or transcode \"duration\" seconds of audio/video",
2800 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2801 "record or transcode stop time", "time_stop" },
2802 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2803 "set the limit file size in bytes", "limit_size" },
2804 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2805 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2806 "set the start time offset", "time_off" },
2807 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2808 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2809 "enable/disable accurate seeking with -ss" },
2810 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2811 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2812 "set the input ts offset", "time_off" },
2813 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2814 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2815 "set the input ts scale", "scale" },
2816 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2817 "set the recording timestamp ('now' to set the current time)", "time" },
2818 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2819 "add metadata", "string=string" },
2820 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2821 OPT_OUTPUT, { .func_arg = opt_data_frames },
2822 "set the number of data frames to output", "number" },
2823 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2824 "add timings for benchmarking" },
2825 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2826 "add timings for each task" },
2827 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2828 "write program-readable progress information", "url" },
2829 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2830 "enable or disable interaction on standard input" },
2831 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2832 "set max runtime in seconds", "limit" },
2833 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2834 "dump each input packet" },
2835 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2836 "when dumping packets, also dump the payload" },
2837 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2838 OPT_INPUT, { .off = OFFSET(rate_emu) },
2839 "read input at native frame rate", "" },
2840 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2841 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2842 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2843 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2844 "video sync method", "" },
2845 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2846 "audio sync method", "" },
2847 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2848 "audio drift threshold", "threshold" },
2849 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2850 "copy timestamps" },
2851 { "start_at_zero", OPT_BOOL | OPT_EXPERT, { &start_at_zero },
2852 "shift input timestamps to start at 0 when using copyts" },
2853 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2854 "copy input stream time base when stream copying", "mode" },
2855 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2856 OPT_OUTPUT, { .off = OFFSET(shortest) },
2857 "finish encoding within shortest input" },
2858 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2859 OPT_OUTPUT, { .off = OFFSET(apad) },
2861 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2862 "timestamp discontinuity delta threshold", "threshold" },
2863 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2864 "timestamp error delta threshold", "threshold" },
2865 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2866 "exit on error", "error" },
2867 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2868 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2869 "copy initial non-keyframes" },
2870 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2871 "copy or discard frames before start time" },
2872 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2873 "set the number of frames to output", "number" },
2874 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2875 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2876 "force codec tag/fourcc", "fourcc/tag" },
2877 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2878 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2879 "use fixed quality scale (VBR)", "q" },
2880 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2881 OPT_OUTPUT, { .func_arg = opt_qscale },
2882 "use fixed quality scale (VBR)", "q" },
2883 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2884 "set profile", "profile" },
2885 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2886 "set stream filtergraph", "filter_graph" },
2887 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2888 "read stream filtergraph description from a file", "filename" },
2889 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2890 "reinit filtergraph on input parameter changes", "" },
2891 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2892 "create a complex filtergraph", "graph_description" },
2893 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2894 "create a complex filtergraph", "graph_description" },
2895 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2896 "read complex filtergraph description from a file", "filename" },
2897 { "stats", OPT_BOOL, { &print_stats },
2898 "print progress report during encoding", },
2899 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2900 OPT_OUTPUT, { .func_arg = opt_attach },
2901 "add an attachment to the output file", "filename" },
2902 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2903 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2904 "extract an attachment into a file", "filename" },
2905 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2906 "print timestamp debugging info" },
2907 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2908 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2909 { "discard", OPT_STRING | HAS_ARG | OPT_SPEC |
2910 OPT_INPUT, { .off = OFFSET(discard) },
2914 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2915 "set the number of video frames to output", "number" },
2916 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2917 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2918 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2919 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2920 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2921 "set frame size (WxH or abbreviation)", "size" },
2922 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2923 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2924 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2925 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2926 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2927 "set pixel format", "format" },
2928 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2929 "set the number of bits per raw sample", "number" },
2930 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2931 "deprecated use -g 1" },
2932 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2934 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2935 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2936 "rate control override for specific intervals", "override" },
2937 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2938 OPT_OUTPUT, { .func_arg = opt_video_codec },
2939 "force video codec ('copy' to copy stream)", "codec" },
2940 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2942 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2944 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2945 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2946 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2947 "select the pass number (1 to 3)", "n" },
2948 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2949 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2950 "select two pass log file name prefix", "prefix" },
2951 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2952 "this option is deprecated, use the yadif filter instead" },
2953 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2954 "calculate PSNR of compressed frames" },
2955 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2956 "dump video coding statistics to file" },
2957 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2958 "dump video coding statistics to file", "file" },
2959 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2960 "set video filters", "filter_graph" },
2961 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2962 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2963 "specify intra matrix coeffs", "matrix" },
2964 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2965 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2966 "specify inter matrix coeffs", "matrix" },
2967 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2968 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
2969 "specify intra matrix coeffs", "matrix" },
2970 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2971 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2972 "top=1/bottom=0/auto=-1 field first", "" },
2973 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2974 OPT_OUTPUT, { .func_arg = opt_old2new },
2975 "force video tag/fourcc", "fourcc/tag" },
2976 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2977 "show QP histogram" },
2978 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2979 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2980 "force the selected framerate, disable the best supported framerate selection" },
2981 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2982 OPT_OUTPUT, { .func_arg = opt_streamid },
2983 "set the value of an outfile streamid", "streamIndex:value" },
2984 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2985 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2986 "force key frames at specified timestamps", "timestamps" },
2987 { "ab", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2988 "audio bitrate (please use -b:a)", "bitrate" },
2989 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2990 "video bitrate (please use -b:v)", "bitrate" },
2991 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2992 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2993 "use HW accelerated decoding", "hwaccel name" },
2994 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2995 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2996 "select a device for HW acceleration" "devicename" },
2998 { "vdpau_api_ver", HAS_ARG | OPT_INT | OPT_EXPERT, { &vdpau_api_ver }, "" },
3002 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
3003 "set the number of audio frames to output", "number" },
3004 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
3005 "set audio quality (codec-specific)", "quality", },
3006 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3007 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
3008 "set audio sampling rate (in Hz)", "rate" },
3009 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
3010 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
3011 "set number of audio channels", "channels" },
3012 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
3014 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
3015 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
3016 "force audio codec ('copy' to copy stream)", "codec" },
3017 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3018 OPT_OUTPUT, { .func_arg = opt_old2new },
3019 "force audio tag/fourcc", "fourcc/tag" },
3020 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
3021 "change audio volume (256=normal)" , "volume" },
3022 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
3023 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
3024 "set sample format", "format" },
3025 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
3026 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
3027 "set channel layout", "layout" },
3028 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
3029 "set audio filters", "filter_graph" },
3030 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
3031 "set the maximum number of channels to try to guess the channel layout" },
3033 /* subtitle options */
3034 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
3035 "disable subtitle" },
3036 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
3037 "force subtitle codec ('copy' to copy stream)", "codec" },
3038 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
3039 , "force subtitle tag/fourcc", "fourcc/tag" },
3040 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
3041 "fix subtitles duration" },
3042 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
3043 "set canvas size (WxH or abbreviation)", "size" },
3046 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
3047 "deprecated, use -channel", "channel" },
3048 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
3049 "deprecated, use -standard", "standard" },
3050 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
3053 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
3054 "set the maximum demux-decode delay", "seconds" },
3055 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
3056 "set the initial demux-decode delay", "seconds" },
3057 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
3058 "override the options from ffserver", "" },
3060 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
3061 "A comma-separated list of bitstream filters", "bitstream_filters" },
3062 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3063 "deprecated", "audio bitstream_filters" },
3064 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3065 "deprecated", "video bitstream_filters" },
3067 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3068 "set the audio options to the indicated preset", "preset" },
3069 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3070 "set the video options to the indicated preset", "preset" },
3071 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3072 "set the subtitle options to the indicated preset", "preset" },
3073 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3074 "set options from indicated preset file", "filename" },
3075 /* data codec support */
3076 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
3077 "force data codec ('copy' to copy stream)", "codec" },
3078 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },