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;
96 int exit_on_error = 0;
99 int stdin_interaction = 1;
100 int frame_bits_per_raw_sample = 0;
101 float max_error_rate = 2.0/3;
104 static int intra_only = 0;
105 static int file_overwrite = 0;
106 static int no_file_overwrite = 0;
107 static int video_discard = 0;
108 static int intra_dc_precision = 8;
109 static int do_psnr = 0;
110 static int input_sync;
111 static int override_ffserver = 0;
113 static void uninit_options(OptionsContext *o)
115 const OptionDef *po = options;
118 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
120 void *dst = (uint8_t*)o + po->u.off;
122 if (po->flags & OPT_SPEC) {
123 SpecifierOpt **so = dst;
124 int i, *count = (int*)(so + 1);
125 for (i = 0; i < *count; i++) {
126 av_freep(&(*so)[i].specifier);
127 if (po->flags & OPT_STRING)
128 av_freep(&(*so)[i].u.str);
132 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
137 for (i = 0; i < o->nb_stream_maps; i++)
138 av_freep(&o->stream_maps[i].linklabel);
139 av_freep(&o->stream_maps);
140 av_freep(&o->audio_channel_maps);
141 av_freep(&o->streamid_map);
142 av_freep(&o->attachments);
145 static void init_options(OptionsContext *o)
147 memset(o, 0, sizeof(*o));
149 o->stop_time = INT64_MAX;
150 o->mux_max_delay = 0.7;
151 o->start_time = AV_NOPTS_VALUE;
152 o->recording_time = INT64_MAX;
153 o->limit_filesize = UINT64_MAX;
154 o->chapters_input_file = INT_MAX;
155 o->accurate_seek = 1;
158 /* return a copy of the input with the stream specifiers removed from the keys */
159 static AVDictionary *strip_specifiers(AVDictionary *dict)
161 AVDictionaryEntry *e = NULL;
162 AVDictionary *ret = NULL;
164 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
165 char *p = strchr(e->key, ':');
169 av_dict_set(&ret, e->key, e->value, 0);
176 static int opt_sameq(void *optctx, const char *opt, const char *arg)
178 av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
179 "If you are looking for an option to preserve the quality (which is not "
180 "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
182 return AVERROR(EINVAL);
185 static int opt_video_channel(void *optctx, const char *opt, const char *arg)
187 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
188 return opt_default(optctx, "channel", arg);
191 static int opt_video_standard(void *optctx, const char *opt, const char *arg)
193 av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
194 return opt_default(optctx, "standard", arg);
197 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
199 OptionsContext *o = optctx;
200 return parse_option(o, "codec:a", arg, options);
203 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
205 OptionsContext *o = optctx;
206 return parse_option(o, "codec:v", arg, options);
209 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
211 OptionsContext *o = optctx;
212 return parse_option(o, "codec:s", arg, options);
215 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
217 OptionsContext *o = optctx;
218 return parse_option(o, "codec:d", arg, options);
221 static int opt_map(void *optctx, const char *opt, const char *arg)
223 OptionsContext *o = optctx;
225 int i, negative = 0, file_idx;
226 int sync_file_idx = -1, sync_stream_idx = 0;
234 map = av_strdup(arg);
236 /* parse sync stream first, just pick first matching stream */
237 if (sync = strchr(map, ',')) {
239 sync_file_idx = strtol(sync + 1, &sync, 0);
240 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
241 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
246 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
247 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
248 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
252 if (i == input_files[sync_file_idx]->nb_streams) {
253 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
254 "match any streams.\n", arg);
261 /* this mapping refers to lavfi output */
262 const char *c = map + 1;
263 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
264 m = &o->stream_maps[o->nb_stream_maps - 1];
265 m->linklabel = av_get_token(&c, "]");
267 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
271 file_idx = strtol(map, &p, 0);
272 if (file_idx >= nb_input_files || file_idx < 0) {
273 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
277 /* disable some already defined maps */
278 for (i = 0; i < o->nb_stream_maps; i++) {
279 m = &o->stream_maps[i];
280 if (file_idx == m->file_index &&
281 check_stream_specifier(input_files[m->file_index]->ctx,
282 input_files[m->file_index]->ctx->streams[m->stream_index],
283 *p == ':' ? p + 1 : p) > 0)
287 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
288 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
289 *p == ':' ? p + 1 : p) <= 0)
291 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
292 m = &o->stream_maps[o->nb_stream_maps - 1];
294 m->file_index = file_idx;
297 if (sync_file_idx >= 0) {
298 m->sync_file_index = sync_file_idx;
299 m->sync_stream_index = sync_stream_idx;
301 m->sync_file_index = file_idx;
302 m->sync_stream_index = i;
308 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
316 static int opt_attach(void *optctx, const char *opt, const char *arg)
318 OptionsContext *o = optctx;
319 GROW_ARRAY(o->attachments, o->nb_attachments);
320 o->attachments[o->nb_attachments - 1] = arg;
324 static int opt_map_channel(void *optctx, const char *opt, const char *arg)
326 OptionsContext *o = optctx;
331 GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
332 m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
334 /* muted channel syntax */
335 n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
336 if ((n == 1 || n == 3) && m->channel_idx == -1) {
337 m->file_idx = m->stream_idx = -1;
339 m->ofile_idx = m->ostream_idx = -1;
344 n = sscanf(arg, "%d.%d.%d:%d.%d",
345 &m->file_idx, &m->stream_idx, &m->channel_idx,
346 &m->ofile_idx, &m->ostream_idx);
348 if (n != 3 && n != 5) {
349 av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
350 "[file.stream.channel|-1][:syncfile:syncstream]\n");
354 if (n != 5) // only file.stream.channel specified
355 m->ofile_idx = m->ostream_idx = -1;
358 if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
359 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
363 if (m->stream_idx < 0 ||
364 m->stream_idx >= input_files[m->file_idx]->nb_streams) {
365 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
366 m->file_idx, m->stream_idx);
369 st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
370 if (st->codec->codec_type != AVMEDIA_TYPE_AUDIO) {
371 av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
372 m->file_idx, m->stream_idx);
375 if (m->channel_idx < 0 || m->channel_idx >= st->codec->channels) {
376 av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
377 m->file_idx, m->stream_idx, m->channel_idx);
384 * Parse a metadata specifier passed as 'arg' parameter.
385 * @param arg metadata string to parse
386 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
387 * @param index for type c/p, chapter/program index is written here
388 * @param stream_spec for type s, the stream specifier is written here
390 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
398 if (*(++arg) && *arg != ':') {
399 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
402 *stream_spec = *arg == ':' ? arg + 1 : "";
407 *index = strtol(++arg, NULL, 0);
410 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
417 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
419 AVDictionary **meta_in = NULL;
420 AVDictionary **meta_out = NULL;
422 char type_in, type_out;
423 const char *istream_spec = NULL, *ostream_spec = NULL;
424 int idx_in = 0, idx_out = 0;
426 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
427 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
430 if (type_out == 'g' || !*outspec)
431 o->metadata_global_manual = 1;
432 if (type_out == 's' || !*outspec)
433 o->metadata_streams_manual = 1;
434 if (type_out == 'c' || !*outspec)
435 o->metadata_chapters_manual = 1;
439 if (type_in == 'g' || type_out == 'g')
440 o->metadata_global_manual = 1;
441 if (type_in == 's' || type_out == 's')
442 o->metadata_streams_manual = 1;
443 if (type_in == 'c' || type_out == 'c')
444 o->metadata_chapters_manual = 1;
446 /* ic is NULL when just disabling automatic mappings */
450 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
451 if ((index) < 0 || (index) >= (nb_elems)) {\
452 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
457 #define SET_DICT(type, meta, context, index)\
460 meta = &context->metadata;\
463 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
464 meta = &context->chapters[index]->metadata;\
467 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
468 meta = &context->programs[index]->metadata;\
471 break; /* handled separately below */ \
472 default: av_assert0(0);\
475 SET_DICT(type_in, meta_in, ic, idx_in);
476 SET_DICT(type_out, meta_out, oc, idx_out);
478 /* for input streams choose first matching stream */
479 if (type_in == 's') {
480 for (i = 0; i < ic->nb_streams; i++) {
481 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
482 meta_in = &ic->streams[i]->metadata;
488 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
493 if (type_out == 's') {
494 for (i = 0; i < oc->nb_streams; i++) {
495 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
496 meta_out = &oc->streams[i]->metadata;
497 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
502 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
507 static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
509 OptionsContext *o = optctx;
511 int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
512 struct tm time = *gmtime((time_t*)&recording_timestamp);
513 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;
580 GROW_ARRAY(input_streams, nb_input_streams);
581 input_streams[nb_input_streams - 1] = ist;
584 ist->file_index = nb_input_files;
586 st->discard = AVDISCARD_ALL;
589 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
591 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
593 uint32_t tag = strtol(codec_tag, &next, 0);
595 tag = AV_RL32(codec_tag);
596 st->codec->codec_tag = tag;
599 ist->dec = choose_decoder(o, ic, st);
600 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codec->codec_id, ic, st, ist->dec);
602 ist->reinit_filters = -1;
603 MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
605 ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
607 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
609 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
613 ret = avcodec_copy_context(ist->dec_ctx, dec);
615 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
619 switch (dec->codec_type) {
620 case AVMEDIA_TYPE_VIDEO:
622 ist->dec = avcodec_find_decoder(dec->codec_id);
623 if (av_codec_get_lowres(dec)) {
624 dec->flags |= CODEC_FLAG_EMU_EDGE;
627 ist->resample_height = ist->dec_ctx->height;
628 ist->resample_width = ist->dec_ctx->width;
629 ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
631 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
632 if (framerate && av_parse_video_rate(&ist->framerate,
634 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
639 ist->top_field_first = -1;
640 MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
642 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
644 if (!strcmp(hwaccel, "none"))
645 ist->hwaccel_id = HWACCEL_NONE;
646 else if (!strcmp(hwaccel, "auto"))
647 ist->hwaccel_id = HWACCEL_AUTO;
650 for (i = 0; hwaccels[i].name; i++) {
651 if (!strcmp(hwaccels[i].name, hwaccel)) {
652 ist->hwaccel_id = hwaccels[i].id;
657 if (!ist->hwaccel_id) {
658 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
660 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
661 for (i = 0; hwaccels[i].name; i++)
662 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
663 av_log(NULL, AV_LOG_FATAL, "\n");
669 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
670 if (hwaccel_device) {
671 ist->hwaccel_device = av_strdup(hwaccel_device);
672 if (!ist->hwaccel_device)
675 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
678 case AVMEDIA_TYPE_AUDIO:
679 ist->guess_layout_max = INT_MAX;
680 MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
681 guess_input_channel_layout(ist);
683 ist->resample_sample_fmt = ist->dec_ctx->sample_fmt;
684 ist->resample_sample_rate = ist->dec_ctx->sample_rate;
685 ist->resample_channels = ist->dec_ctx->channels;
686 ist->resample_channel_layout = ist->dec_ctx->channel_layout;
689 case AVMEDIA_TYPE_DATA:
690 case AVMEDIA_TYPE_SUBTITLE: {
691 char *canvas_size = NULL;
693 ist->dec = avcodec_find_decoder(dec->codec_id);
694 MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
695 MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
697 av_parse_video_size(&dec->width, &dec->height, canvas_size) < 0) {
698 av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
703 case AVMEDIA_TYPE_ATTACHMENT:
704 case AVMEDIA_TYPE_UNKNOWN:
712 static void assert_file_overwrite(const char *filename)
714 if (file_overwrite && no_file_overwrite) {
715 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
719 if (!file_overwrite) {
720 const char *proto_name = avio_find_protocol_name(filename);
721 if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
722 if (stdin_interaction && !no_file_overwrite) {
723 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
726 signal(SIGINT, SIG_DFL);
728 av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
734 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
741 static void dump_attachment(AVStream *st, const char *filename)
744 AVIOContext *out = NULL;
745 AVDictionaryEntry *e;
747 if (!st->codec->extradata_size) {
748 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
749 nb_input_files - 1, st->index);
752 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
755 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
756 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
760 assert_file_overwrite(filename);
762 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
763 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
768 avio_write(out, st->codec->extradata, st->codec->extradata_size);
773 static int open_input_file(OptionsContext *o, const char *filename)
777 AVInputFormat *file_iformat = NULL;
782 AVDictionary *unused_opts = NULL;
783 AVDictionaryEntry *e = NULL;
784 int orig_nb_streams; // number of streams before avformat_find_stream_info
785 char * video_codec_name = NULL;
786 char * audio_codec_name = NULL;
787 char *subtitle_codec_name = NULL;
790 if (!(file_iformat = av_find_input_format(o->format))) {
791 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
796 if (!strcmp(filename, "-"))
799 stdin_interaction &= strncmp(filename, "pipe:", 5) &&
800 strcmp(filename, "/dev/stdin");
802 /* get default parameters from command line */
803 ic = avformat_alloc_context();
805 print_error(filename, AVERROR(ENOMEM));
808 if (o->nb_audio_sample_rate) {
809 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
810 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
812 if (o->nb_audio_channels) {
813 /* because we set audio_channels based on both the "ac" and
814 * "channel_layout" options, we need to check that the specified
815 * demuxer actually has the "channels" option before setting it */
816 if (file_iformat && file_iformat->priv_class &&
817 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
818 AV_OPT_SEARCH_FAKE_OBJ)) {
819 snprintf(buf, sizeof(buf), "%d",
820 o->audio_channels[o->nb_audio_channels - 1].u.i);
821 av_dict_set(&o->g->format_opts, "channels", buf, 0);
824 if (o->nb_frame_rates) {
825 /* set the format-level framerate option;
826 * this is important for video grabbers, e.g. x11 */
827 if (file_iformat && file_iformat->priv_class &&
828 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
829 AV_OPT_SEARCH_FAKE_OBJ)) {
830 av_dict_set(&o->g->format_opts, "framerate",
831 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
834 if (o->nb_frame_sizes) {
835 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
837 if (o->nb_frame_pix_fmts)
838 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
840 MATCH_PER_TYPE_OPT(codec_names, str, video_codec_name, ic, "v");
841 MATCH_PER_TYPE_OPT(codec_names, str, audio_codec_name, ic, "a");
842 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
844 ic->video_codec_id = video_codec_name ?
845 find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0)->id : AV_CODEC_ID_NONE;
846 ic->audio_codec_id = audio_codec_name ?
847 find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0)->id : AV_CODEC_ID_NONE;
848 ic->subtitle_codec_id= subtitle_codec_name ?
849 find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
851 if (video_codec_name)
852 av_format_set_video_codec (ic, find_codec_or_die(video_codec_name , AVMEDIA_TYPE_VIDEO , 0));
853 if (audio_codec_name)
854 av_format_set_audio_codec (ic, find_codec_or_die(audio_codec_name , AVMEDIA_TYPE_AUDIO , 0));
855 if (subtitle_codec_name)
856 av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
858 ic->flags |= AVFMT_FLAG_NONBLOCK;
859 ic->interrupt_callback = int_cb;
861 /* open the input file with generic avformat function */
862 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
864 print_error(filename, err);
867 assert_avoptions(o->g->format_opts);
869 /* apply forced codec ids */
870 for (i = 0; i < ic->nb_streams; i++)
871 choose_decoder(o, ic, ic->streams[i]);
873 /* Set AVCodecContext options for avformat_find_stream_info */
874 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
875 orig_nb_streams = ic->nb_streams;
877 /* If not enough info to get the stream parameters, we decode the
878 first frames to get it. (used in mpeg case for example) */
879 ret = avformat_find_stream_info(ic, opts);
881 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
882 avformat_close_input(&ic);
886 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
887 /* add the stream start time */
888 if (ic->start_time != AV_NOPTS_VALUE)
889 timestamp += ic->start_time;
891 /* if seeking requested, we execute it */
892 if (o->start_time != AV_NOPTS_VALUE) {
893 ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, timestamp, 0);
895 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
896 filename, (double)timestamp / AV_TIME_BASE);
900 /* update the current parameters so that they match the one of the input stream */
901 add_input_streams(o, ic);
903 /* dump the file content */
904 av_dump_format(ic, nb_input_files, filename, 0);
906 GROW_ARRAY(input_files, nb_input_files);
907 f = av_mallocz(sizeof(*f));
910 input_files[nb_input_files - 1] = f;
913 f->ist_index = nb_input_streams - ic->nb_streams;
914 f->start_time = o->start_time;
915 f->recording_time = o->recording_time;
916 f->input_ts_offset = o->input_ts_offset;
917 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
918 f->nb_streams = ic->nb_streams;
919 f->rate_emu = o->rate_emu;
920 f->accurate_seek = o->accurate_seek;
922 /* check if all codec options have been used */
923 unused_opts = strip_specifiers(o->g->codec_opts);
924 for (i = f->ist_index; i < nb_input_streams; i++) {
926 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
927 AV_DICT_IGNORE_SUFFIX)))
928 av_dict_set(&unused_opts, e->key, NULL, 0);
932 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
933 const AVClass *class = avcodec_get_class();
934 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
935 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
936 const AVClass *fclass = avformat_get_class();
937 const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
938 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
939 if (!option || foption)
943 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
944 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
945 "input file #%d (%s) is not a decoding option.\n", e->key,
946 option->help ? option->help : "", nb_input_files - 1,
951 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
952 "input file #%d (%s) has not been used for any stream. The most "
953 "likely reason is either wrong type (e.g. a video option with "
954 "no video streams) or that it is a private option of some decoder "
955 "which was not actually used for any stream.\n", e->key,
956 option->help ? option->help : "", nb_input_files - 1, filename);
958 av_dict_free(&unused_opts);
960 for (i = 0; i < o->nb_dump_attachment; i++) {
963 for (j = 0; j < ic->nb_streams; j++) {
964 AVStream *st = ic->streams[j];
966 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
967 dump_attachment(st, o->dump_attachment[i].u.str);
971 for (i = 0; i < orig_nb_streams; i++)
972 av_dict_free(&opts[i]);
978 static uint8_t *get_line(AVIOContext *s)
984 if (avio_open_dyn_buf(&line) < 0) {
985 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
989 while ((c = avio_r8(s)) && c != '\n')
992 avio_close_dyn_buf(line, &buf);
997 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
1000 char filename[1000];
1001 const char *base[3] = { getenv("AVCONV_DATADIR"),
1006 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
1010 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
1011 i != 1 ? "" : "/.avconv", codec_name, preset_name);
1012 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1015 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
1016 i != 1 ? "" : "/.avconv", preset_name);
1017 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
1023 static void choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
1025 char *codec_name = NULL;
1027 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
1029 ost->st->codec->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
1030 NULL, ost->st->codec->codec_type);
1031 ost->enc = avcodec_find_encoder(ost->st->codec->codec_id);
1032 } else if (!strcmp(codec_name, "copy"))
1033 ost->stream_copy = 1;
1035 ost->enc = find_codec_or_die(codec_name, ost->st->codec->codec_type, 1);
1036 ost->st->codec->codec_id = ost->enc->id;
1040 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
1043 AVStream *st = avformat_new_stream(oc, NULL);
1044 int idx = oc->nb_streams - 1, ret = 0;
1045 char *bsf = NULL, *next, *codec_tag = NULL;
1046 AVBitStreamFilterContext *bsfc, *bsfc_prev = NULL;
1051 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
1055 if (oc->nb_streams - 1 < o->nb_streamid_map)
1056 st->id = o->streamid_map[oc->nb_streams - 1];
1058 GROW_ARRAY(output_streams, nb_output_streams);
1059 if (!(ost = av_mallocz(sizeof(*ost))))
1061 output_streams[nb_output_streams - 1] = ost;
1063 ost->file_index = nb_output_files - 1;
1066 st->codec->codec_type = type;
1067 choose_encoder(o, oc, ost);
1069 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
1070 if (!ost->enc_ctx) {
1071 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
1074 ost->enc_ctx->codec_type = type;
1077 AVIOContext *s = NULL;
1078 char *buf = NULL, *arg = NULL, *preset = NULL;
1080 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1082 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1083 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1086 if (!buf[0] || buf[0] == '#') {
1090 if (!(arg = strchr(buf, '='))) {
1091 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1095 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1097 } while (!s->eof_reached);
1101 av_log(NULL, AV_LOG_FATAL,
1102 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1103 preset, ost->file_index, ost->index);
1107 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1110 ost->max_frames = INT64_MAX;
1111 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1112 for (i = 0; i<o->nb_max_frames; i++) {
1113 char *p = o->max_frames[i].specifier;
1114 if (!*p && type != AVMEDIA_TYPE_VIDEO) {
1115 av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
1120 ost->copy_prior_start = -1;
1121 MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
1123 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsf, oc, st);
1125 if (next = strchr(bsf, ','))
1127 if (!(bsfc = av_bitstream_filter_init(bsf))) {
1128 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1132 bsfc_prev->next = bsfc;
1134 ost->bitstream_filters = bsfc;
1140 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1142 uint32_t tag = strtol(codec_tag, &next, 0);
1144 tag = AV_RL32(codec_tag);
1145 ost->enc_ctx->codec_tag = tag;
1148 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1150 ost->enc_ctx->flags |= CODEC_FLAG_QSCALE;
1151 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1154 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1155 ost->enc_ctx->flags |= CODEC_FLAG_GLOBAL_HEADER;
1157 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1159 av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
1160 if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
1161 av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
1163 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1165 ost->source_index = source_index;
1166 if (source_index >= 0) {
1167 ost->sync_ist = input_streams[source_index];
1168 input_streams[source_index]->discard = 0;
1169 input_streams[source_index]->st->discard = AVDISCARD_NONE;
1171 ost->last_mux_dts = AV_NOPTS_VALUE;
1176 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1179 const char *p = str;
1186 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1193 /* read file contents into a string */
1194 static uint8_t *read_file(const char *filename)
1196 AVIOContext *pb = NULL;
1197 AVIOContext *dyn_buf = NULL;
1198 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1199 uint8_t buf[1024], *str;
1202 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1206 ret = avio_open_dyn_buf(&dyn_buf);
1211 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1212 avio_write(dyn_buf, buf, ret);
1213 avio_w8(dyn_buf, 0);
1216 ret = avio_close_dyn_buf(dyn_buf, &str);
1222 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1225 AVStream *st = ost->st;
1227 if (ost->filters_script && ost->filters) {
1228 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1229 "output stream #%d:%d.\n", nb_output_files, st->index);
1233 if (ost->filters_script)
1234 return read_file(ost->filters_script);
1235 else if (ost->filters)
1236 return av_strdup(ost->filters);
1238 return av_strdup(st->codec->codec_type == AVMEDIA_TYPE_VIDEO ?
1242 static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
1243 const OutputStream *ost, enum AVMediaType type)
1245 if (ost->filters_script || ost->filters) {
1246 av_log(NULL, AV_LOG_ERROR,
1247 "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
1248 "Filtering and streamcopy cannot be used together.\n",
1249 ost->filters ? "Filtergraph" : "Filtergraph script",
1250 ost->filters ? ost->filters : ost->filters_script,
1251 av_get_media_type_string(type), ost->file_index, ost->index);
1256 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1260 AVCodecContext *video_enc;
1261 char *frame_rate = NULL, *frame_aspect_ratio = NULL;
1263 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
1265 video_enc = ost->enc_ctx;
1267 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1268 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1269 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1273 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1274 if (frame_aspect_ratio) {
1276 if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
1277 q.num <= 0 || q.den <= 0) {
1278 av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
1281 ost->frame_aspect_ratio = q;
1284 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1285 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1287 if (!ost->stream_copy) {
1288 const char *p = NULL;
1289 char *frame_size = NULL;
1290 char *frame_pix_fmt = NULL;
1291 char *intra_matrix = NULL, *inter_matrix = NULL;
1292 char *chroma_intra_matrix = NULL;
1296 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1297 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1298 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1302 video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
1303 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1304 if (frame_pix_fmt && *frame_pix_fmt == '+') {
1305 ost->keep_pix_fmt = 1;
1306 if (!*++frame_pix_fmt)
1307 frame_pix_fmt = NULL;
1309 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1310 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1313 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1316 video_enc->gop_size = 0;
1317 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1319 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1320 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1323 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1325 MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
1326 if (chroma_intra_matrix) {
1327 uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
1329 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1332 av_codec_set_chroma_intra_matrix(video_enc, p);
1333 parse_matrix_coeffs(p, chroma_intra_matrix);
1335 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1337 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1338 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1341 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1344 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1345 for (i = 0; p; i++) {
1347 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1349 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1352 /* FIXME realloc failure */
1353 video_enc->rc_override =
1354 av_realloc(video_enc->rc_override,
1355 sizeof(RcOverride) * (i + 1));
1356 video_enc->rc_override[i].start_frame = start;
1357 video_enc->rc_override[i].end_frame = end;
1359 video_enc->rc_override[i].qscale = q;
1360 video_enc->rc_override[i].quality_factor = 1.0;
1363 video_enc->rc_override[i].qscale = 0;
1364 video_enc->rc_override[i].quality_factor = -q/100.0;
1369 video_enc->rc_override_count = i;
1370 video_enc->intra_dc_precision = intra_dc_precision - 8;
1373 video_enc->flags|= CODEC_FLAG_PSNR;
1376 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1379 video_enc->flags |= CODEC_FLAG_PASS1;
1380 av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
1383 video_enc->flags |= CODEC_FLAG_PASS2;
1384 av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
1388 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1389 if (ost->logfile_prefix &&
1390 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1393 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1394 if (ost->forced_keyframes)
1395 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1397 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1399 ost->top_field_first = -1;
1400 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1403 ost->avfilter = get_ost_filters(o, oc, ost);
1407 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1410 if (ost->stream_copy)
1411 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
1416 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1421 AVCodecContext *audio_enc;
1423 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
1426 audio_enc = ost->enc_ctx;
1427 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1429 MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
1430 MATCH_PER_STREAM_OPT(filters, str, ost->filters, oc, st);
1432 if (!ost->stream_copy) {
1433 char *sample_fmt = NULL;
1435 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1437 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1439 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1440 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1444 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1446 MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
1447 ost->apad = av_strdup(ost->apad);
1449 ost->avfilter = get_ost_filters(o, oc, ost);
1453 /* check for channel mapping for this audio stream */
1454 for (n = 0; n < o->nb_audio_channel_maps; n++) {
1455 AudioChannelMap *map = &o->audio_channel_maps[n];
1456 if ((map->ofile_idx == -1 || ost->file_index == map->ofile_idx) &&
1457 (map->ostream_idx == -1 || ost->st->index == map->ostream_idx)) {
1460 if (map->channel_idx == -1) {
1462 } else if (ost->source_index < 0) {
1463 av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
1464 ost->file_index, ost->st->index);
1467 ist = input_streams[ost->source_index];
1470 if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
1471 if (ost->audio_channels_mapped < FF_ARRAY_ELEMS(ost->audio_channels_map))
1472 ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
1474 av_log(NULL, AV_LOG_FATAL, "Max channel mapping for output %d.%d reached\n",
1475 ost->file_index, ost->st->index);
1481 if (ost->stream_copy)
1482 check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
1487 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1491 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
1492 if (!ost->stream_copy) {
1493 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1500 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1502 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
1503 ost->stream_copy = 1;
1508 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
1512 AVCodecContext *subtitle_enc;
1514 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
1516 subtitle_enc = ost->enc_ctx;
1518 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1520 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
1522 if (!ost->stream_copy) {
1523 char *frame_size = NULL;
1525 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1526 if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
1527 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1535 /* arg format is "output-stream-index:streamid-value". */
1536 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1538 OptionsContext *o = optctx;
1543 av_strlcpy(idx_str, arg, sizeof(idx_str));
1544 p = strchr(idx_str, ':');
1546 av_log(NULL, AV_LOG_FATAL,
1547 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1552 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
1553 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1554 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1558 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1560 AVFormatContext *is = ifile->ctx;
1561 AVFormatContext *os = ofile->ctx;
1565 tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
1567 return AVERROR(ENOMEM);
1570 for (i = 0; i < is->nb_chapters; i++) {
1571 AVChapter *in_ch = is->chapters[i], *out_ch;
1572 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1573 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1574 AV_TIME_BASE_Q, in_ch->time_base);
1575 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1576 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1579 if (in_ch->end < ts_off)
1581 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1584 out_ch = av_mallocz(sizeof(AVChapter));
1586 return AVERROR(ENOMEM);
1588 out_ch->id = in_ch->id;
1589 out_ch->time_base = in_ch->time_base;
1590 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1591 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1594 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1596 os->chapters[os->nb_chapters++] = out_ch;
1601 static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
1604 AVFormatContext *ic = avformat_alloc_context();
1606 ic->interrupt_callback = int_cb;
1607 err = avformat_open_input(&ic, filename, NULL, NULL);
1610 /* copy stream format */
1611 for(i=0;i<ic->nb_streams;i++) {
1615 AVCodecContext *avctx;
1617 codec = avcodec_find_encoder(ic->streams[i]->codec->codec_id);
1618 ost = new_output_stream(o, s, codec->type, -1);
1623 // FIXME: a more elegant solution is needed
1624 memcpy(st, ic->streams[i], sizeof(AVStream));
1626 st->info = av_malloc(sizeof(*st->info));
1627 memcpy(st->info, ic->streams[i]->info, sizeof(*st->info));
1629 avcodec_copy_context(st->codec, ic->streams[i]->codec);
1631 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
1632 choose_sample_fmt(st, codec);
1633 else if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
1634 choose_pixel_fmt(st, st->codec, codec, st->codec->pix_fmt);
1637 avformat_close_input(&ic);
1641 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1642 AVFormatContext *oc)
1646 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1647 ofilter->out_tmp->pad_idx)) {
1648 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
1649 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
1651 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1656 ost->source_index = -1;
1657 ost->filter = ofilter;
1661 if (ost->stream_copy) {
1662 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1663 "which is fed from a complex filtergraph. Filtering and streamcopy "
1664 "cannot be used together.\n", ost->file_index, ost->index);
1668 if (ost->avfilter && (ost->filters || ost->filters_script)) {
1669 const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
1670 av_log(NULL, AV_LOG_ERROR,
1671 "%s '%s' was specified through the %s option "
1672 "for output stream %d:%d, which is fed from a complex filtergraph.\n"
1673 "%s and -filter_complex cannot be used together for the same stream.\n",
1674 ost->filters ? "Filtergraph" : "Filtergraph script",
1675 ost->filters ? ost->filters : ost->filters_script,
1676 opt, ost->file_index, ost->index, opt);
1680 if (configure_output_filter(ofilter->graph, ofilter, ofilter->out_tmp) < 0) {
1681 av_log(NULL, AV_LOG_FATAL, "Error configuring filter.\n");
1684 avfilter_inout_free(&ofilter->out_tmp);
1687 static int configure_complex_filters(void)
1691 for (i = 0; i < nb_filtergraphs; i++)
1692 if (!filtergraphs[i]->graph &&
1693 (ret = configure_filtergraph(filtergraphs[i])) < 0)
1698 static int open_output_file(OptionsContext *o, const char *filename)
1700 AVFormatContext *oc;
1702 AVOutputFormat *file_oformat;
1706 AVDictionary *unused_opts = NULL;
1707 AVDictionaryEntry *e = NULL;
1709 if (configure_complex_filters() < 0) {
1710 av_log(NULL, AV_LOG_FATAL, "Error configuring filters.\n");
1714 if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
1715 o->stop_time = INT64_MAX;
1716 av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
1719 if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
1720 int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
1721 if (o->stop_time <= start_time) {
1722 av_log(NULL, AV_LOG_WARNING, "-to value smaller than -ss; ignoring -to.\n");
1723 o->stop_time = INT64_MAX;
1725 o->recording_time = o->stop_time - start_time;
1729 GROW_ARRAY(output_files, nb_output_files);
1730 of = av_mallocz(sizeof(*of));
1733 output_files[nb_output_files - 1] = of;
1735 of->ost_index = nb_output_streams;
1736 of->recording_time = o->recording_time;
1737 of->start_time = o->start_time;
1738 of->limit_filesize = o->limit_filesize;
1739 of->shortest = o->shortest;
1740 av_dict_copy(&of->opts, o->g->format_opts, 0);
1742 if (!strcmp(filename, "-"))
1745 err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
1747 print_error(filename, err);
1752 if (o->recording_time != INT64_MAX)
1753 oc->duration = o->recording_time;
1755 file_oformat= oc->oformat;
1756 oc->interrupt_callback = int_cb;
1758 /* create streams for all unlabeled output pads */
1759 for (i = 0; i < nb_filtergraphs; i++) {
1760 FilterGraph *fg = filtergraphs[i];
1761 for (j = 0; j < fg->nb_outputs; j++) {
1762 OutputFilter *ofilter = fg->outputs[j];
1764 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1767 switch (avfilter_pad_get_type(ofilter->out_tmp->filter_ctx->output_pads,
1768 ofilter->out_tmp->pad_idx)) {
1769 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1770 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1771 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1773 init_output_filter(ofilter, o, oc);
1777 /* ffserver seeking with date=... needs a date reference */
1778 if (!strcmp(file_oformat->name, "ffm") &&
1779 av_strstart(filename, "http:", NULL)) {
1780 int err = parse_option(o, "metadata", "creation_time=now", options);
1782 print_error(filename, err);
1787 if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
1788 av_strstart(filename, "http:", NULL)) {
1790 /* special case for files sent to ffserver: we get the stream
1791 parameters from ffserver */
1792 int err = read_ffserver_streams(o, oc, filename);
1794 print_error(filename, err);
1797 for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
1798 ost = output_streams[j];
1799 for (i = 0; i < nb_input_streams; i++) {
1800 ist = input_streams[i];
1801 if(ist->st->codec->codec_type == ost->st->codec->codec_type){
1803 ost->source_index= i;
1804 if(ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
1805 if(ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
1807 ist->st->discard = AVDISCARD_NONE;
1812 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));
1816 } else if (!o->nb_stream_maps) {
1817 char *subtitle_codec_name = NULL;
1818 /* pick the "best" stream of each type */
1820 /* video: highest resolution */
1821 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1822 int area = 0, idx = -1;
1823 int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
1824 for (i = 0; i < nb_input_streams; i++) {
1826 ist = input_streams[i];
1827 new_area = ist->st->codec->width * ist->st->codec->height;
1828 if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1830 if (ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
1832 if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
1839 new_video_stream(o, oc, idx);
1842 /* audio: most channels */
1843 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1844 int channels = 0, idx = -1;
1845 for (i = 0; i < nb_input_streams; i++) {
1846 ist = input_streams[i];
1847 if (ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
1848 ist->st->codec->channels > channels) {
1849 channels = ist->st->codec->channels;
1854 new_audio_stream(o, oc, idx);
1857 /* subtitles: pick first */
1858 MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
1859 if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
1860 for (i = 0; i < nb_input_streams; i++)
1861 if (input_streams[i]->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1862 new_subtitle_stream(o, oc, i);
1866 /* do something with data? */
1868 for (i = 0; i < o->nb_stream_maps; i++) {
1869 StreamMap *map = &o->stream_maps[i];
1874 if (map->linklabel) {
1876 OutputFilter *ofilter = NULL;
1879 for (j = 0; j < nb_filtergraphs; j++) {
1880 fg = filtergraphs[j];
1881 for (k = 0; k < fg->nb_outputs; k++) {
1882 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1883 if (out && !strcmp(out->name, map->linklabel)) {
1884 ofilter = fg->outputs[k];
1891 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1892 "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
1895 init_output_filter(ofilter, o, oc);
1897 int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
1899 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1900 if(o->subtitle_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_SUBTITLE)
1902 if(o-> audio_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_AUDIO)
1904 if(o-> video_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_VIDEO)
1906 if(o-> data_disable && ist->st->codec->codec_type == AVMEDIA_TYPE_DATA)
1909 switch (ist->st->codec->codec_type) {
1910 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream (o, oc, src_idx); break;
1911 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream (o, oc, src_idx); break;
1912 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream (o, oc, src_idx); break;
1913 case AVMEDIA_TYPE_DATA: ost = new_data_stream (o, oc, src_idx); break;
1914 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
1916 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1917 map->file_index, map->stream_index);
1924 /* handle attached files */
1925 for (i = 0; i < o->nb_attachments; i++) {
1927 uint8_t *attachment;
1931 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1932 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1936 if ((len = avio_size(pb)) <= 0) {
1937 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1941 if (!(attachment = av_malloc(len))) {
1942 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1946 avio_read(pb, attachment, len);
1948 ost = new_attachment_stream(o, oc, -1);
1949 ost->stream_copy = 0;
1950 ost->attachment_filename = o->attachments[i];
1952 ost->enc_ctx->extradata = attachment;
1953 ost->enc_ctx->extradata_size = len;
1955 p = strrchr(o->attachments[i], '/');
1956 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1960 for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
1961 AVDictionaryEntry *e;
1962 ost = output_streams[i];
1964 if ((ost->stream_copy || ost->attachment_filename)
1965 && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
1966 && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
1967 if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
1971 /* check if all codec options have been used */
1972 unused_opts = strip_specifiers(o->g->codec_opts);
1973 for (i = of->ost_index; i < nb_output_streams; i++) {
1975 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
1976 AV_DICT_IGNORE_SUFFIX)))
1977 av_dict_set(&unused_opts, e->key, NULL, 0);
1981 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1982 const AVClass *class = avcodec_get_class();
1983 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1984 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1987 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1988 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1989 "output file #%d (%s) is not an encoding option.\n", e->key,
1990 option->help ? option->help : "", nb_output_files - 1,
1995 // gop_timecode is injected by generic code but not always used
1996 if (!strcmp(e->key, "gop_timecode"))
1999 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
2000 "output file #%d (%s) has not been used for any stream. The most "
2001 "likely reason is either wrong type (e.g. a video option with "
2002 "no video streams) or that it is a private option of some encoder "
2003 "which was not actually used for any stream.\n", e->key,
2004 option->help ? option->help : "", nb_output_files - 1, filename);
2006 av_dict_free(&unused_opts);
2008 /* check filename in case of an image number is expected */
2009 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
2010 if (!av_filename_number_test(oc->filename)) {
2011 print_error(oc->filename, AVERROR(EINVAL));
2016 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
2017 /* test if it already exists to avoid losing precious files */
2018 assert_file_overwrite(filename);
2021 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
2022 &oc->interrupt_callback,
2024 print_error(filename, err);
2027 } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
2028 assert_file_overwrite(filename);
2030 if (o->mux_preload) {
2032 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
2033 av_dict_set(&of->opts, "preload", buf, 0);
2035 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
2038 for (i = 0; i < o->nb_metadata_map; i++) {
2040 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
2042 if (in_file_index >= nb_input_files) {
2043 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
2046 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
2047 in_file_index >= 0 ?
2048 input_files[in_file_index]->ctx : NULL, o);
2052 if (o->chapters_input_file >= nb_input_files) {
2053 if (o->chapters_input_file == INT_MAX) {
2054 /* copy chapters from the first input file that has them*/
2055 o->chapters_input_file = -1;
2056 for (i = 0; i < nb_input_files; i++)
2057 if (input_files[i]->ctx->nb_chapters) {
2058 o->chapters_input_file = i;
2062 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
2063 o->chapters_input_file);
2067 if (o->chapters_input_file >= 0)
2068 copy_chapters(input_files[o->chapters_input_file], of,
2069 !o->metadata_chapters_manual);
2071 /* copy global metadata by default */
2072 if (!o->metadata_global_manual && nb_input_files){
2073 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
2074 AV_DICT_DONT_OVERWRITE);
2075 if(o->recording_time != INT64_MAX)
2076 av_dict_set(&oc->metadata, "duration", NULL, 0);
2077 av_dict_set(&oc->metadata, "creation_time", NULL, 0);
2079 if (!o->metadata_streams_manual)
2080 for (i = of->ost_index; i < nb_output_streams; i++) {
2082 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
2084 ist = input_streams[output_streams[i]->source_index];
2085 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
2086 if (!output_streams[i]->stream_copy)
2087 av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
2090 /* process manually set metadata */
2091 for (i = 0; i < o->nb_metadata; i++) {
2094 const char *stream_spec;
2095 int index = 0, j, ret = 0;
2097 val = strchr(o->metadata[i].u.str, '=');
2099 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
2100 o->metadata[i].u.str);
2105 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
2107 for (j = 0; j < oc->nb_streams; j++) {
2108 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
2109 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
2120 if (index < 0 || index >= oc->nb_chapters) {
2121 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2124 m = &oc->chapters[index]->metadata;
2127 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2130 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2137 static int opt_target(void *optctx, const char *opt, const char *arg)
2139 OptionsContext *o = optctx;
2140 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2141 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2143 if (!strncmp(arg, "pal-", 4)) {
2146 } else if (!strncmp(arg, "ntsc-", 5)) {
2149 } else if (!strncmp(arg, "film-", 5)) {
2153 /* Try to determine PAL/NTSC by peeking in the input files */
2154 if (nb_input_files) {
2156 for (j = 0; j < nb_input_files; j++) {
2157 for (i = 0; i < input_files[j]->nb_streams; i++) {
2158 AVCodecContext *c = input_files[j]->ctx->streams[i]->codec;
2159 if (c->codec_type != AVMEDIA_TYPE_VIDEO)
2161 fr = c->time_base.den * 1000 / c->time_base.num;
2165 } else if ((fr == 29970) || (fr == 23976)) {
2170 if (norm != UNKNOWN)
2174 if (norm != UNKNOWN)
2175 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2178 if (norm == UNKNOWN) {
2179 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2180 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2181 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2185 if (!strcmp(arg, "vcd")) {
2186 opt_video_codec(o, "c:v", "mpeg1video");
2187 opt_audio_codec(o, "c:a", "mp2");
2188 parse_option(o, "f", "vcd", options);
2190 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2191 parse_option(o, "r", frame_rates[norm], options);
2192 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2194 av_dict_set(&o->g->codec_opts, "b:v", "1150000", AV_DICT_DONT_OVERWRITE);
2195 av_dict_set(&o->g->codec_opts, "maxrate", "1150000", AV_DICT_DONT_OVERWRITE);
2196 av_dict_set(&o->g->codec_opts, "minrate", "1150000", AV_DICT_DONT_OVERWRITE);
2197 av_dict_set(&o->g->codec_opts, "bufsize", "327680", AV_DICT_DONT_OVERWRITE); // 40*1024*8;
2199 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2200 parse_option(o, "ar", "44100", options);
2201 parse_option(o, "ac", "2", options);
2203 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2204 av_dict_set(&o->g->format_opts, "muxrate", "1411200", AV_DICT_DONT_OVERWRITE); // 2352 * 75 * 8;
2206 /* We have to offset the PTS, so that it is consistent with the SCR.
2207 SCR starts at 36000, but the first two packs contain only padding
2208 and the first pack from the other stream, respectively, may also have
2209 been written before.
2210 So the real data starts at SCR 36000+3*1200. */
2211 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2212 } else if (!strcmp(arg, "svcd")) {
2214 opt_video_codec(o, "c:v", "mpeg2video");
2215 opt_audio_codec(o, "c:a", "mp2");
2216 parse_option(o, "f", "svcd", options);
2218 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2219 parse_option(o, "r", frame_rates[norm], options);
2220 parse_option(o, "pix_fmt", "yuv420p", options);
2221 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2223 av_dict_set(&o->g->codec_opts, "b:v", "2040000", AV_DICT_DONT_OVERWRITE);
2224 av_dict_set(&o->g->codec_opts, "maxrate", "2516000", AV_DICT_DONT_OVERWRITE);
2225 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1145000;
2226 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2227 av_dict_set(&o->g->codec_opts, "scan_offset", "1", AV_DICT_DONT_OVERWRITE);
2229 av_dict_set(&o->g->codec_opts, "b:a", "224000", AV_DICT_DONT_OVERWRITE);
2230 parse_option(o, "ar", "44100", options);
2232 av_dict_set(&o->g->format_opts, "packetsize", "2324", AV_DICT_DONT_OVERWRITE);
2234 } else if (!strcmp(arg, "dvd")) {
2236 opt_video_codec(o, "c:v", "mpeg2video");
2237 opt_audio_codec(o, "c:a", "ac3");
2238 parse_option(o, "f", "dvd", options);
2240 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2241 parse_option(o, "r", frame_rates[norm], options);
2242 parse_option(o, "pix_fmt", "yuv420p", options);
2243 av_dict_set(&o->g->codec_opts, "g", norm == PAL ? "15" : "18", AV_DICT_DONT_OVERWRITE);
2245 av_dict_set(&o->g->codec_opts, "b:v", "6000000", AV_DICT_DONT_OVERWRITE);
2246 av_dict_set(&o->g->codec_opts, "maxrate", "9000000", AV_DICT_DONT_OVERWRITE);
2247 av_dict_set(&o->g->codec_opts, "minrate", "0", AV_DICT_DONT_OVERWRITE); // 1500000;
2248 av_dict_set(&o->g->codec_opts, "bufsize", "1835008", AV_DICT_DONT_OVERWRITE); // 224*1024*8;
2250 av_dict_set(&o->g->format_opts, "packetsize", "2048", AV_DICT_DONT_OVERWRITE); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2251 av_dict_set(&o->g->format_opts, "muxrate", "10080000", AV_DICT_DONT_OVERWRITE); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
2253 av_dict_set(&o->g->codec_opts, "b:a", "448000", AV_DICT_DONT_OVERWRITE);
2254 parse_option(o, "ar", "48000", options);
2256 } else if (!strncmp(arg, "dv", 2)) {
2258 parse_option(o, "f", "dv", options);
2260 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2261 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2262 norm == PAL ? "yuv420p" : "yuv411p", options);
2263 parse_option(o, "r", frame_rates[norm], options);
2265 parse_option(o, "ar", "48000", options);
2266 parse_option(o, "ac", "2", options);
2269 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2270 return AVERROR(EINVAL);
2275 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2277 av_free (vstats_filename);
2278 vstats_filename = av_strdup (arg);
2282 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2285 time_t today2 = time(NULL);
2286 struct tm *today = localtime(&today2);
2288 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2290 return opt_vstats_file(NULL, opt, filename);
2293 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2295 OptionsContext *o = optctx;
2296 return parse_option(o, "frames:v", arg, options);
2299 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2301 OptionsContext *o = optctx;
2302 return parse_option(o, "frames:a", arg, options);
2305 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2307 OptionsContext *o = optctx;
2308 return parse_option(o, "frames:d", arg, options);
2311 static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
2314 AVDictionary *cbak = codec_opts;
2315 AVDictionary *fbak = format_opts;
2319 ret = opt_default(NULL, opt, arg);
2321 av_dict_copy(&o->g->codec_opts , codec_opts, 0);
2322 av_dict_copy(&o->g->format_opts, format_opts, 0);
2323 av_dict_free(&codec_opts);
2324 av_dict_free(&format_opts);
2331 static int opt_preset(void *optctx, const char *opt, const char *arg)
2333 OptionsContext *o = optctx;
2335 char filename[1000], line[1000], tmp_line[1000];
2336 const char *codec_name = NULL;
2340 MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
2342 if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
2343 if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
2344 av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
2346 av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
2350 while (fgets(line, sizeof(line), f)) {
2351 char *key = tmp_line, *value, *endptr;
2353 if (strcspn(line, "#\n\r") == 0)
2355 av_strlcpy(tmp_line, line, sizeof(tmp_line));
2356 if (!av_strtok(key, "=", &value) ||
2357 !av_strtok(value, "\r\n", &endptr)) {
2358 av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
2361 av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
2363 if (!strcmp(key, "acodec")) opt_audio_codec (o, key, value);
2364 else if (!strcmp(key, "vcodec")) opt_video_codec (o, key, value);
2365 else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
2366 else if (!strcmp(key, "dcodec")) opt_data_codec (o, key, value);
2367 else if (opt_default_new(o, key, value) < 0) {
2368 av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
2369 filename, line, key, value);
2379 static int opt_old2new(void *optctx, const char *opt, const char *arg)
2381 OptionsContext *o = optctx;
2382 char *s = av_asprintf("%s:%c", opt + 1, *opt);
2383 int ret = parse_option(o, s, arg, options);
2388 static int opt_bitrate(void *optctx, const char *opt, const char *arg)
2390 OptionsContext *o = optctx;
2391 if(!strcmp(opt, "b")){
2392 av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
2393 av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
2396 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2400 static int opt_qscale(void *optctx, const char *opt, const char *arg)
2402 OptionsContext *o = optctx;
2405 if(!strcmp(opt, "qscale")){
2406 av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
2407 return parse_option(o, "q:v", arg, options);
2409 s = av_asprintf("q%s", opt + 6);
2410 ret = parse_option(o, s, arg, options);
2415 static int opt_profile(void *optctx, const char *opt, const char *arg)
2417 OptionsContext *o = optctx;
2418 if(!strcmp(opt, "profile")){
2419 av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
2420 av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
2423 av_dict_set(&o->g->codec_opts, opt, arg, 0);
2427 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2429 OptionsContext *o = optctx;
2430 return parse_option(o, "filter:v", arg, options);
2433 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2435 OptionsContext *o = optctx;
2436 return parse_option(o, "filter:a", arg, options);
2439 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2441 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2442 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2443 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2444 else if (!av_strcasecmp(arg, "drop")) video_sync_method = VSYNC_DROP;
2446 if (video_sync_method == VSYNC_AUTO)
2447 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2451 static int opt_timecode(void *optctx, const char *opt, const char *arg)
2453 OptionsContext *o = optctx;
2454 char *tcr = av_asprintf("timecode=%s", arg);
2455 int ret = parse_option(o, "metadata:g", tcr, options);
2457 ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
2462 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2464 OptionsContext *o = optctx;
2465 char layout_str[32];
2468 int ret, channels, ac_str_size;
2471 layout = av_get_channel_layout(arg);
2473 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2474 return AVERROR(EINVAL);
2476 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2477 ret = opt_default_new(o, opt, layout_str);
2481 /* set 'ac' option based on channel layout */
2482 channels = av_get_channel_layout_nb_channels(layout);
2483 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2484 stream_str = strchr(opt, ':');
2485 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2486 ac_str = av_mallocz(ac_str_size);
2488 return AVERROR(ENOMEM);
2489 av_strlcpy(ac_str, "ac", 3);
2491 av_strlcat(ac_str, stream_str, ac_str_size);
2492 ret = parse_option(o, ac_str, layout_str, options);
2498 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2500 OptionsContext *o = optctx;
2501 return parse_option(o, "q:a", arg, options);
2504 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2506 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2507 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2508 return AVERROR(ENOMEM);
2509 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2510 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2511 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2512 return AVERROR(ENOMEM);
2516 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2518 uint8_t *graph_desc = read_file(arg);
2520 return AVERROR(EINVAL);
2522 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2523 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2524 return AVERROR(ENOMEM);
2525 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2526 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2530 void show_help_default(const char *opt, const char *arg)
2532 /* per-file options have at least one of those set */
2533 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2534 int show_advanced = 0, show_avoptions = 0;
2537 if (!strcmp(opt, "long"))
2539 else if (!strcmp(opt, "full"))
2540 show_advanced = show_avoptions = 1;
2542 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2547 printf("Getting help:\n"
2548 " -h -- print basic options\n"
2549 " -h long -- print more options\n"
2550 " -h full -- print all options (including all format and codec specific options, very long)\n"
2551 " See man %s for detailed description of the options.\n"
2552 "\n", program_name);
2554 show_help_options(options, "Print help / information / capabilities:",
2557 show_help_options(options, "Global options (affect whole program "
2558 "instead of just one file:",
2559 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2561 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2562 per_file | OPT_EXIT, 0);
2564 show_help_options(options, "Per-file main options:", 0,
2565 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2566 OPT_EXIT, per_file);
2568 show_help_options(options, "Advanced per-file options:",
2569 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2571 show_help_options(options, "Video options:",
2572 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2574 show_help_options(options, "Advanced Video options:",
2575 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2577 show_help_options(options, "Audio options:",
2578 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2580 show_help_options(options, "Advanced Audio options:",
2581 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2582 show_help_options(options, "Subtitle options:",
2583 OPT_SUBTITLE, 0, 0);
2586 if (show_avoptions) {
2587 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2588 show_help_children(avcodec_get_class(), flags);
2589 show_help_children(avformat_get_class(), flags);
2591 show_help_children(sws_get_class(), flags);
2593 show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
2594 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
2598 void show_usage(void)
2600 av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
2601 av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2602 av_log(NULL, AV_LOG_INFO, "\n");
2610 static const OptionGroupDef groups[] = {
2611 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2612 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2615 static int open_files(OptionGroupList *l, const char *inout,
2616 int (*open_file)(OptionsContext*, const char*))
2620 for (i = 0; i < l->nb_groups; i++) {
2621 OptionGroup *g = &l->groups[i];
2627 ret = parse_optgroup(&o, g);
2629 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2630 "%s.\n", inout, g->arg);
2634 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2635 ret = open_file(&o, g->arg);
2638 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2642 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2648 int ffmpeg_parse_options(int argc, char **argv)
2650 OptionParseContext octx;
2654 memset(&octx, 0, sizeof(octx));
2656 /* split the commandline into an internal representation */
2657 ret = split_commandline(&octx, argc, argv, options, groups,
2658 FF_ARRAY_ELEMS(groups));
2660 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2664 /* apply global options */
2665 ret = parse_optgroup(NULL, &octx.global_opts);
2667 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2671 /* open input files */
2672 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2674 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2678 /* open output files */
2679 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2681 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2686 uninit_parse_context(&octx);
2688 av_strerror(ret, error, sizeof(error));
2689 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2694 static int opt_progress(void *optctx, const char *opt, const char *arg)
2696 AVIOContext *avio = NULL;
2699 if (!strcmp(arg, "-"))
2701 ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
2703 av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
2704 arg, av_err2str(ret));
2707 progress_avio = avio;
2711 #define OFFSET(x) offsetof(OptionsContext, x)
2712 const OptionDef options[] = {
2714 #include "cmdutils_common_opts.h"
2715 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2716 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2717 "force format", "fmt" },
2718 { "y", OPT_BOOL, { &file_overwrite },
2719 "overwrite output files" },
2720 { "n", OPT_BOOL, { &no_file_overwrite },
2721 "never overwrite output files" },
2722 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2723 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2724 "codec name", "codec" },
2725 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2726 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2727 "codec name", "codec" },
2728 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2729 OPT_OUTPUT, { .off = OFFSET(presets) },
2730 "preset name", "preset" },
2731 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2732 OPT_OUTPUT, { .func_arg = opt_map },
2733 "set input stream mapping",
2734 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2735 { "map_channel", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
2736 "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
2737 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2738 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2739 "set metadata information of outfile from infile",
2740 "outfile[,metadata]:infile[,metadata]" },
2741 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2742 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2743 "set chapters mapping", "input_file_index" },
2744 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2745 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2746 "record or transcode \"duration\" seconds of audio/video",
2748 { "to", HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(stop_time) },
2749 "record or transcode stop time", "time_stop" },
2750 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2751 "set the limit file size in bytes", "limit_size" },
2752 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2753 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2754 "set the start time offset", "time_off" },
2755 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2756 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2757 "enable/disable accurate seeking with -ss" },
2758 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2759 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2760 "set the input ts offset", "time_off" },
2761 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2762 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2763 "set the input ts scale", "scale" },
2764 { "timestamp", HAS_ARG | OPT_PERFILE, { .func_arg = opt_recording_timestamp },
2765 "set the recording timestamp ('now' to set the current time)", "time" },
2766 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2767 "add metadata", "string=string" },
2768 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2769 OPT_OUTPUT, { .func_arg = opt_data_frames },
2770 "set the number of data frames to record", "number" },
2771 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2772 "add timings for benchmarking" },
2773 { "benchmark_all", OPT_BOOL | OPT_EXPERT, { &do_benchmark_all },
2774 "add timings for each task" },
2775 { "progress", HAS_ARG | OPT_EXPERT, { .func_arg = opt_progress },
2776 "write program-readable progress information", "url" },
2777 { "stdin", OPT_BOOL | OPT_EXPERT, { &stdin_interaction },
2778 "enable or disable interaction on standard input" },
2779 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2780 "set max runtime in seconds", "limit" },
2781 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2782 "dump each input packet" },
2783 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2784 "when dumping packets, also dump the payload" },
2785 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2786 OPT_INPUT, { .off = OFFSET(rate_emu) },
2787 "read input at native frame rate", "" },
2788 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2789 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2790 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2791 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2792 "video sync method", "" },
2793 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2794 "audio sync method", "" },
2795 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2796 "audio drift threshold", "threshold" },
2797 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2798 "copy timestamps" },
2799 { "copytb", HAS_ARG | OPT_INT | OPT_EXPERT, { ©_tb },
2800 "copy input stream time base when stream copying", "mode" },
2801 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2802 OPT_OUTPUT, { .off = OFFSET(shortest) },
2803 "finish encoding within shortest input" },
2804 { "apad", OPT_STRING | HAS_ARG | OPT_SPEC |
2805 OPT_OUTPUT, { .off = OFFSET(apad) },
2807 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2808 "timestamp discontinuity delta threshold", "threshold" },
2809 { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_error_threshold },
2810 "timestamp error delta threshold", "threshold" },
2811 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2812 "exit on error", "error" },
2813 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2814 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2815 "copy initial non-keyframes" },
2816 { "copypriorss", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(copy_prior_start) },
2817 "copy or discard frames before start time" },
2818 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2819 "set the number of frames to record", "number" },
2820 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2821 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2822 "force codec tag/fourcc", "fourcc/tag" },
2823 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2824 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2825 "use fixed quality scale (VBR)", "q" },
2826 { "qscale", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2827 OPT_OUTPUT, { .func_arg = opt_qscale },
2828 "use fixed quality scale (VBR)", "q" },
2829 { "profile", HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
2830 "set profile", "profile" },
2831 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2832 "set stream filtergraph", "filter_graph" },
2833 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2834 "read stream filtergraph description from a file", "filename" },
2835 { "reinit_filter", HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT, { .off = OFFSET(reinit_filters) },
2836 "reinit filtergraph on input parameter changes", "" },
2837 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2838 "create a complex filtergraph", "graph_description" },
2839 { "lavfi", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2840 "create a complex filtergraph", "graph_description" },
2841 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2842 "read complex filtergraph description from a file", "filename" },
2843 { "stats", OPT_BOOL, { &print_stats },
2844 "print progress report during encoding", },
2845 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2846 OPT_OUTPUT, { .func_arg = opt_attach },
2847 "add an attachment to the output file", "filename" },
2848 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2849 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2850 "extract an attachment into a file", "filename" },
2851 { "debug_ts", OPT_BOOL | OPT_EXPERT, { &debug_ts },
2852 "print timestamp debugging info" },
2853 { "max_error_rate", HAS_ARG | OPT_FLOAT, { &max_error_rate },
2854 "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
2857 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2858 "set the number of video frames to record", "number" },
2859 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2860 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2861 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2862 { "s", OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
2863 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2864 "set frame size (WxH or abbreviation)", "size" },
2865 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2866 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2867 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2868 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2869 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2870 "set pixel format", "format" },
2871 { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG, { &frame_bits_per_raw_sample },
2872 "set the number of bits per raw sample", "number" },
2873 { "intra", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &intra_only },
2874 "deprecated use -g 1" },
2875 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
2877 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2878 "discard threshold", "n" },
2879 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2880 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2881 "rate control override for specific intervals", "override" },
2882 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2883 OPT_OUTPUT, { .func_arg = opt_video_codec },
2884 "force video codec ('copy' to copy stream)", "codec" },
2885 { "sameq", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2887 { "same_quant", OPT_VIDEO | OPT_EXPERT , { .func_arg = opt_sameq },
2889 { "timecode", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_timecode },
2890 "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
2891 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2892 "select the pass number (1 to 3)", "n" },
2893 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2894 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2895 "select two pass log file name prefix", "prefix" },
2896 { "deinterlace", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_deinterlace },
2897 "this option is deprecated, use the yadif filter instead" },
2898 { "psnr", OPT_VIDEO | OPT_BOOL | OPT_EXPERT, { &do_psnr },
2899 "calculate PSNR of compressed frames" },
2900 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2901 "dump video coding statistics to file" },
2902 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2903 "dump video coding statistics to file", "file" },
2904 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2905 "set video filters", "filter_graph" },
2906 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2907 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2908 "specify intra matrix coeffs", "matrix" },
2909 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2910 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2911 "specify inter matrix coeffs", "matrix" },
2912 { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2913 OPT_OUTPUT, { .off = OFFSET(chroma_intra_matrices) },
2914 "specify intra matrix coeffs", "matrix" },
2915 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2916 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2917 "top=1/bottom=0/auto=-1 field first", "" },
2918 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2919 "intra_dc_precision", "precision" },
2920 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2921 OPT_OUTPUT, { .func_arg = opt_old2new },
2922 "force video tag/fourcc", "fourcc/tag" },
2923 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2924 "show QP histogram" },
2925 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2926 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2927 "force the selected framerate, disable the best supported framerate selection" },
2928 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2929 OPT_OUTPUT, { .func_arg = opt_streamid },
2930 "set the value of an outfile streamid", "streamIndex:value" },
2931 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2932 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2933 "force key frames at specified timestamps", "timestamps" },
2934 { "b", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_bitrate },
2935 "video bitrate (please use -b:v)", "bitrate" },
2936 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2937 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2938 "use HW accelerated decoding", "hwaccel name" },
2939 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2940 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2941 "select a device for HW acceleration" "devicename" },
2944 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2945 "set the number of audio frames to record", "number" },
2946 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2947 "set audio quality (codec-specific)", "quality", },
2948 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2949 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2950 "set audio sampling rate (in Hz)", "rate" },
2951 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2952 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2953 "set number of audio channels", "channels" },
2954 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
2956 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2957 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2958 "force audio codec ('copy' to copy stream)", "codec" },
2959 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2960 OPT_OUTPUT, { .func_arg = opt_old2new },
2961 "force audio tag/fourcc", "fourcc/tag" },
2962 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2963 "change audio volume (256=normal)" , "volume" },
2964 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2965 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2966 "set sample format", "format" },
2967 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2968 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2969 "set channel layout", "layout" },
2970 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2971 "set audio filters", "filter_graph" },
2972 { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
2973 "set the maximum number of channels to try to guess the channel layout" },
2975 /* subtitle options */
2976 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2977 "disable subtitle" },
2978 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2979 "force subtitle codec ('copy' to copy stream)", "codec" },
2980 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
2981 , "force subtitle tag/fourcc", "fourcc/tag" },
2982 { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
2983 "fix subtitles duration" },
2984 { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
2985 "set canvas size (WxH or abbreviation)", "size" },
2988 { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
2989 "deprecated, use -channel", "channel" },
2990 { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
2991 "deprecated, use -standard", "standard" },
2992 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2995 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2996 "set the maximum demux-decode delay", "seconds" },
2997 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2998 "set the initial demux-decode delay", "seconds" },
2999 { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
3000 "override the options from ffserver", "" },
3002 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
3003 "A comma-separated list of bitstream filters", "bitstream_filters" },
3004 { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3005 "deprecated", "audio bitstream_filters" },
3006 { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
3007 "deprecated", "video bitstream_filters" },
3009 { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3010 "set the audio options to the indicated preset", "preset" },
3011 { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3012 "set the video options to the indicated preset", "preset" },
3013 { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3014 "set the subtitle options to the indicated preset", "preset" },
3015 { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
3016 "set options from indicated preset file", "filename" },
3017 /* data codec support */
3018 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
3019 "force data codec ('copy' to copy stream)", "codec" },
3020 { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },