2 * avconv option parsing
4 * This file is part of Libav.
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavformat/avformat.h"
28 #include "libavcodec/avcodec.h"
30 #include "libavfilter/avfilter.h"
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
44 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
46 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
49 for (i = 0; i < o->nb_ ## name; i++) {\
50 char *spec = o->name[i].specifier;\
51 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
52 outvar = o->name[i].u.type;\
58 const HWAccel hwaccels[] = {
60 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
63 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
66 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
69 { "qsv", qsv_init, HWACCEL_QSV, AV_PIX_FMT_QSV },
72 { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
76 int hwaccel_lax_profile_check = 0;
77 AVBufferRef *hw_device_ctx;
79 char *vstats_filename;
81 float audio_drift_threshold = 0.1;
82 float dts_delta_threshold = 10;
84 int audio_volume = 256;
85 int audio_sync_method = 0;
86 int video_sync_method = VSYNC_AUTO;
92 int exit_on_error = 0;
96 static int file_overwrite = 0;
97 static int file_skip = 0;
98 static int video_discard = 0;
99 static int intra_dc_precision = 8;
100 static int using_stdin = 0;
101 static int input_sync;
103 static void uninit_options(OptionsContext *o)
105 const OptionDef *po = options;
108 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
110 void *dst = (uint8_t*)o + po->u.off;
112 if (po->flags & OPT_SPEC) {
113 SpecifierOpt **so = dst;
114 int i, *count = (int*)(so + 1);
115 for (i = 0; i < *count; i++) {
116 av_freep(&(*so)[i].specifier);
117 if (po->flags & OPT_STRING)
118 av_freep(&(*so)[i].u.str);
122 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
127 for (i = 0; i < o->nb_stream_maps; i++)
128 av_freep(&o->stream_maps[i].linklabel);
129 av_freep(&o->stream_maps);
130 av_freep(&o->meta_data_maps);
131 av_freep(&o->streamid_map);
134 static void init_options(OptionsContext *o)
136 memset(o, 0, sizeof(*o));
138 o->mux_max_delay = 0.7;
139 o->start_time = AV_NOPTS_VALUE;
140 o->recording_time = INT64_MAX;
141 o->limit_filesize = UINT64_MAX;
142 o->chapters_input_file = INT_MAX;
143 o->accurate_seek = 1;
146 /* return a copy of the input with the stream specifiers removed from the keys */
147 static AVDictionary *strip_specifiers(AVDictionary *dict)
149 AVDictionaryEntry *e = NULL;
150 AVDictionary *ret = NULL;
152 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
153 char *p = strchr(e->key, ':');
157 av_dict_set(&ret, e->key, e->value, 0);
164 static double parse_frame_aspect_ratio(const char *arg)
171 p = strchr(arg, ':');
173 x = strtol(arg, &end, 10);
175 y = strtol(end + 1, &end, 10);
177 ar = (double)x / (double)y;
179 ar = strtod(arg, NULL);
182 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
188 static int show_hwaccels(void *optctx, const char *opt, const char *arg)
192 printf("Supported hardware acceleration:\n");
193 for (i = 0; hwaccels[i].name; i++) {
194 printf("%s\n", hwaccels[i].name);
200 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
202 OptionsContext *o = optctx;
203 return parse_option(o, "codec:a", arg, options);
206 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
208 OptionsContext *o = optctx;
209 return parse_option(o, "codec:v", arg, options);
212 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
214 OptionsContext *o = optctx;
215 return parse_option(o, "codec:s", arg, options);
218 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
220 OptionsContext *o = optctx;
221 return parse_option(o, "codec:d", arg, options);
224 static int opt_map(void *optctx, const char *opt, const char *arg)
226 OptionsContext *o = optctx;
228 int i, negative = 0, file_idx;
229 int sync_file_idx = -1, sync_stream_idx;
237 map = av_strdup(arg);
239 return AVERROR(ENOMEM);
241 /* parse sync stream first, just pick first matching stream */
242 if (sync = strchr(map, ',')) {
244 sync_file_idx = strtol(sync + 1, &sync, 0);
245 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
246 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
251 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
252 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
253 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
257 if (i == input_files[sync_file_idx]->nb_streams) {
258 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
259 "match any streams.\n", arg);
266 /* this mapping refers to lavfi output */
267 const char *c = map + 1;
268 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
269 m = &o->stream_maps[o->nb_stream_maps - 1];
270 m->linklabel = av_get_token(&c, "]");
272 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
276 file_idx = strtol(map, &p, 0);
277 if (file_idx >= nb_input_files || file_idx < 0) {
278 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
282 /* disable some already defined maps */
283 for (i = 0; i < o->nb_stream_maps; i++) {
284 m = &o->stream_maps[i];
285 if (file_idx == m->file_index &&
286 check_stream_specifier(input_files[m->file_index]->ctx,
287 input_files[m->file_index]->ctx->streams[m->stream_index],
288 *p == ':' ? p + 1 : p) > 0)
292 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
293 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
294 *p == ':' ? p + 1 : p) <= 0)
296 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
297 m = &o->stream_maps[o->nb_stream_maps - 1];
299 m->file_index = file_idx;
302 if (sync_file_idx >= 0) {
303 m->sync_file_index = sync_file_idx;
304 m->sync_stream_index = sync_stream_idx;
306 m->sync_file_index = file_idx;
307 m->sync_stream_index = i;
313 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
321 static int opt_attach(void *optctx, const char *opt, const char *arg)
323 OptionsContext *o = optctx;
324 GROW_ARRAY(o->attachments, o->nb_attachments);
325 o->attachments[o->nb_attachments - 1] = arg;
330 static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
333 err = vaapi_device_init(arg);
341 * Parse a metadata specifier passed as 'arg' parameter.
342 * @param arg metadata string to parse
343 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
344 * @param index for type c/p, chapter/program index is written here
345 * @param stream_spec for type s, the stream specifier is written here
347 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
355 if (*(++arg) && *arg != ':') {
356 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
359 *stream_spec = *arg == ':' ? arg + 1 : "";
364 *index = strtol(++arg, NULL, 0);
367 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
374 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
376 AVDictionary **meta_in = NULL;
377 AVDictionary **meta_out;
379 char type_in, type_out;
380 const char *istream_spec = NULL, *ostream_spec = NULL;
381 int idx_in = 0, idx_out = 0;
383 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
384 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
386 if (type_in == 'g' || type_out == 'g')
387 o->metadata_global_manual = 1;
388 if (type_in == 's' || type_out == 's')
389 o->metadata_streams_manual = 1;
390 if (type_in == 'c' || type_out == 'c')
391 o->metadata_chapters_manual = 1;
393 /* ic is NULL when just disabling automatic mappings */
397 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
398 if ((index) < 0 || (index) >= (nb_elems)) {\
399 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
404 #define SET_DICT(type, meta, context, index)\
407 meta = &context->metadata;\
410 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
411 meta = &context->chapters[index]->metadata;\
414 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
415 meta = &context->programs[index]->metadata;\
418 break; /* handled separately below */ \
419 default: av_assert0(0);\
422 SET_DICT(type_in, meta_in, ic, idx_in);
423 SET_DICT(type_out, meta_out, oc, idx_out);
425 /* for input streams choose first matching stream */
426 if (type_in == 's') {
427 for (i = 0; i < ic->nb_streams; i++) {
428 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
429 meta_in = &ic->streams[i]->metadata;
435 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
440 if (type_out == 's') {
441 for (i = 0; i < oc->nb_streams; i++) {
442 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
443 meta_out = &oc->streams[i]->metadata;
444 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
449 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
454 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
456 const AVCodecDescriptor *desc;
457 const char *codec_string = encoder ? "encoder" : "decoder";
461 avcodec_find_encoder_by_name(name) :
462 avcodec_find_decoder_by_name(name);
464 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
465 codec = encoder ? avcodec_find_encoder(desc->id) :
466 avcodec_find_decoder(desc->id);
468 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
469 codec_string, codec->name, desc->name);
473 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
476 if (codec->type != type) {
477 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
483 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
485 char *codec_name = NULL;
487 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
489 AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
490 st->codecpar->codec_id = codec->id;
493 return avcodec_find_decoder(st->codecpar->codec_id);
496 /* Add all the streams from the given input file to the global
497 * list of input streams. */
498 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
502 for (i = 0; i < ic->nb_streams; i++) {
503 AVStream *st = ic->streams[i];
504 AVCodecParameters *par = st->codecpar;
505 InputStream *ist = av_mallocz(sizeof(*ist));
506 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
507 char *hwaccel_output_format = NULL;
508 char *codec_tag = NULL;
514 GROW_ARRAY(input_streams, nb_input_streams);
515 input_streams[nb_input_streams - 1] = ist;
518 ist->file_index = nb_input_files;
520 st->discard = AVDISCARD_ALL;
522 ist->min_pts = INT64_MAX;
523 ist->max_pts = INT64_MIN;
526 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
529 MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
531 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
533 uint32_t tag = strtol(codec_tag, &next, 0);
535 tag = AV_RL32(codec_tag);
536 st->codecpar->codec_tag = tag;
539 ist->dec = choose_decoder(o, ic, st);
540 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, par->codec_id, ic, st, ist->dec);
542 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
544 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
548 ret = avcodec_parameters_to_context(ist->dec_ctx, par);
550 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
554 switch (par->codec_type) {
555 case AVMEDIA_TYPE_VIDEO:
556 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
557 if (framerate && av_parse_video_rate(&ist->framerate,
559 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
564 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
566 if (!strcmp(hwaccel, "none"))
567 ist->hwaccel_id = HWACCEL_NONE;
568 else if (!strcmp(hwaccel, "auto"))
569 ist->hwaccel_id = HWACCEL_AUTO;
572 for (i = 0; hwaccels[i].name; i++) {
573 if (!strcmp(hwaccels[i].name, hwaccel)) {
574 ist->hwaccel_id = hwaccels[i].id;
579 if (!ist->hwaccel_id) {
580 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
582 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
583 for (i = 0; hwaccels[i].name; i++)
584 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
585 av_log(NULL, AV_LOG_FATAL, "\n");
591 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
592 if (hwaccel_device) {
593 ist->hwaccel_device = av_strdup(hwaccel_device);
594 if (!ist->hwaccel_device)
598 MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
599 hwaccel_output_format, ic, st);
600 if (hwaccel_output_format) {
601 ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
602 if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
603 av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
604 "format: %s", hwaccel_output_format);
607 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
610 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
613 case AVMEDIA_TYPE_AUDIO:
614 guess_input_channel_layout(ist);
616 case AVMEDIA_TYPE_DATA:
617 case AVMEDIA_TYPE_SUBTITLE:
618 case AVMEDIA_TYPE_ATTACHMENT:
619 case AVMEDIA_TYPE_UNKNOWN:
627 static void assert_file_overwrite(const char *filename)
629 if (file_overwrite && file_skip) {
630 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
634 if (!file_overwrite &&
635 (!strchr(filename, ':') || filename[1] == ':' ||
636 av_strstart(filename, "file:", NULL))) {
637 if (avio_check(filename, 0) == 0) {
638 if (!using_stdin && !file_skip) {
639 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
642 fprintf(stderr, "Not overwriting - exiting\n");
647 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
654 static void dump_attachment(AVStream *st, const char *filename)
657 AVIOContext *out = NULL;
658 AVDictionaryEntry *e;
660 if (!st->codecpar->extradata_size) {
661 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
662 nb_input_files - 1, st->index);
665 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
668 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
669 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
673 assert_file_overwrite(filename);
675 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
676 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
681 avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
686 static int open_input_file(OptionsContext *o, const char *filename)
690 AVInputFormat *file_iformat = NULL;
695 AVDictionary *unused_opts = NULL;
696 AVDictionaryEntry *e = NULL;
697 int orig_nb_streams; // number of streams before avformat_find_stream_info
700 if (!(file_iformat = av_find_input_format(o->format))) {
701 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
706 if (!strcmp(filename, "-"))
709 using_stdin |= !strncmp(filename, "pipe:", 5) ||
710 !strcmp(filename, "/dev/stdin");
712 /* get default parameters from command line */
713 ic = avformat_alloc_context();
715 print_error(filename, AVERROR(ENOMEM));
718 if (o->nb_audio_sample_rate) {
719 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
720 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
722 if (o->nb_audio_channels) {
723 /* because we set audio_channels based on both the "ac" and
724 * "channel_layout" options, we need to check that the specified
725 * demuxer actually has the "channels" option before setting it */
726 if (file_iformat && file_iformat->priv_class &&
727 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
728 AV_OPT_SEARCH_FAKE_OBJ)) {
729 snprintf(buf, sizeof(buf), "%d",
730 o->audio_channels[o->nb_audio_channels - 1].u.i);
731 av_dict_set(&o->g->format_opts, "channels", buf, 0);
734 if (o->nb_frame_rates) {
735 /* set the format-level framerate option;
736 * this is important for video grabbers, e.g. x11 */
737 if (file_iformat && file_iformat->priv_class &&
738 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
739 AV_OPT_SEARCH_FAKE_OBJ)) {
740 av_dict_set(&o->g->format_opts, "framerate",
741 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
744 if (o->nb_frame_sizes) {
745 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
747 if (o->nb_frame_pix_fmts)
748 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
750 ic->flags |= AVFMT_FLAG_NONBLOCK;
751 ic->interrupt_callback = int_cb;
753 /* open the input file with generic Libav function */
754 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
756 print_error(filename, err);
759 assert_avoptions(o->g->format_opts);
761 /* apply forced codec ids */
762 for (i = 0; i < ic->nb_streams; i++)
763 choose_decoder(o, ic, ic->streams[i]);
765 /* Set AVCodecContext options for avformat_find_stream_info */
766 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
767 orig_nb_streams = ic->nb_streams;
769 /* If not enough info to get the stream parameters, we decode the
770 first frames to get it. (used in mpeg case for example) */
771 ret = avformat_find_stream_info(ic, opts);
773 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
774 avformat_close_input(&ic);
778 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
779 /* add the stream start time */
780 if (ic->start_time != AV_NOPTS_VALUE)
781 timestamp += ic->start_time;
783 /* if seeking requested, we execute it */
784 if (o->start_time != AV_NOPTS_VALUE) {
785 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
787 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
788 filename, (double)timestamp / AV_TIME_BASE);
792 /* update the current parameters so that they match the one of the input stream */
793 add_input_streams(o, ic);
795 /* dump the file content */
796 av_dump_format(ic, nb_input_files, filename, 0);
798 GROW_ARRAY(input_files, nb_input_files);
799 f = av_mallocz(sizeof(*f));
802 input_files[nb_input_files - 1] = f;
805 f->ist_index = nb_input_streams - ic->nb_streams;
806 f->start_time = o->start_time;
807 f->recording_time = o->recording_time;
808 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
809 f->nb_streams = ic->nb_streams;
810 f->rate_emu = o->rate_emu;
811 f->accurate_seek = o->accurate_seek;
814 f->time_base = (AVRational){ 1, 1 };
816 /* check if all codec options have been used */
817 unused_opts = strip_specifiers(o->g->codec_opts);
818 for (i = f->ist_index; i < nb_input_streams; i++) {
820 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
821 AV_DICT_IGNORE_SUFFIX)))
822 av_dict_set(&unused_opts, e->key, NULL, 0);
826 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
827 const AVClass *class = avcodec_get_class();
828 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
829 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
832 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
833 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
834 "input file #%d (%s) is not a decoding option.\n", e->key,
835 option->help ? option->help : "", nb_input_files - 1,
840 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
841 "input file #%d (%s) has not been used for any stream. The most "
842 "likely reason is either wrong type (e.g. a video option with "
843 "no video streams) or that it is a private option of some decoder "
844 "which was not actually used for any stream.\n", e->key,
845 option->help ? option->help : "", nb_input_files - 1, filename);
847 av_dict_free(&unused_opts);
849 for (i = 0; i < o->nb_dump_attachment; i++) {
852 for (j = 0; j < ic->nb_streams; j++) {
853 AVStream *st = ic->streams[j];
855 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
856 dump_attachment(st, o->dump_attachment[i].u.str);
860 for (i = 0; i < orig_nb_streams; i++)
861 av_dict_free(&opts[i]);
867 static uint8_t *get_line(AVIOContext *s)
873 if (avio_open_dyn_buf(&line) < 0) {
874 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
878 while ((c = avio_r8(s)) && c != '\n')
881 avio_close_dyn_buf(line, &buf);
886 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
890 const char *base[3] = { getenv("AVCONV_DATADIR"),
895 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
899 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
900 i != 1 ? "" : "/.avconv", codec_name, preset_name);
901 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
904 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
905 i != 1 ? "" : "/.avconv", preset_name);
906 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
912 static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
914 enum AVMediaType type = ost->st->codecpar->codec_type;
915 char *codec_name = NULL;
917 if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
918 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
920 ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
921 NULL, ost->st->codecpar->codec_type);
922 ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
924 av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
925 "output stream #%d:%d. Default encoder for format %s is "
926 "probably disabled. Please choose an encoder manually.\n",
927 ost->file_index, ost->index, s->oformat->name);
928 return AVERROR_ENCODER_NOT_FOUND;
930 } else if (!strcmp(codec_name, "copy"))
931 ost->stream_copy = 1;
933 ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
934 ost->st->codecpar->codec_id = ost->enc->id;
937 ost->encoding_needed = !ost->stream_copy;
939 /* no encoding supported for other media types */
940 ost->stream_copy = 1;
941 ost->encoding_needed = 0;
947 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
950 AVStream *st = avformat_new_stream(oc, NULL);
951 int idx = oc->nb_streams - 1, ret = 0;
952 const char *bsfs = NULL;
953 char *next, *codec_tag = NULL;
957 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
961 if (oc->nb_streams - 1 < o->nb_streamid_map)
962 st->id = o->streamid_map[oc->nb_streams - 1];
964 GROW_ARRAY(output_streams, nb_output_streams);
965 if (!(ost = av_mallocz(sizeof(*ost))))
967 output_streams[nb_output_streams - 1] = ost;
969 ost->file_index = nb_output_files - 1;
972 st->codecpar->codec_type = type;
974 ret = choose_encoder(o, oc, ost);
976 av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
977 "%d:%d\n", ost->file_index, ost->index);
981 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
983 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
986 ost->enc_ctx->codec_type = type;
989 AVIOContext *s = NULL;
990 char *buf = NULL, *arg = NULL, *preset = NULL;
992 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
994 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
995 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
998 if (!buf[0] || buf[0] == '#') {
1002 if (!(arg = strchr(buf, '='))) {
1003 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1007 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1009 } while (!s->eof_reached);
1013 av_log(NULL, AV_LOG_FATAL,
1014 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1015 preset, ost->file_index, ost->index);
1019 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1022 ost->max_frames = INT64_MAX;
1023 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1025 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
1026 while (bsfs && *bsfs) {
1027 const AVBitStreamFilter *filter;
1028 const char *bsf, *bsf_options_str, *bsf_name;
1029 AVDictionary *bsf_options = NULL;
1031 bsf = bsf_options_str = av_get_token(&bsfs, ",");
1034 bsf_name = av_get_token(&bsf_options_str, "=");
1038 filter = av_bsf_get_by_name(bsf_name);
1040 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
1043 if (*bsf_options_str++) {
1044 ret = av_dict_parse_string(&bsf_options, bsf_options_str, "=", ":", 0);
1046 av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
1052 ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
1053 ost->nb_bitstream_filters + 1,
1054 sizeof(*ost->bsf_ctx));
1058 ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
1060 av_log(NULL, AV_LOG_ERROR, "Error allocating a bistream filter context\n");
1063 ost->nb_bitstream_filters++;
1066 ret = av_opt_set_dict(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, &bsf_options);
1068 av_log(NULL, AV_LOG_ERROR, "Error setting options for bitstream filter %s\n", bsf_name);
1071 assert_avoptions(bsf_options);
1072 av_dict_free(&bsf_options);
1074 av_freep(&bsf_name);
1080 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1082 uint32_t tag = strtol(codec_tag, &next, 0);
1084 tag = AV_RL32(codec_tag);
1085 ost->enc_ctx->codec_tag = tag;
1088 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1090 ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
1091 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1094 ost->max_muxing_queue_size = 128;
1095 MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
1096 ost->max_muxing_queue_size *= sizeof(AVPacket);
1098 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1099 ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
1101 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1103 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1105 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
1106 ost->last_mux_dts = AV_NOPTS_VALUE;
1108 ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
1109 if (!ost->muxing_queue)
1115 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1118 const char *p = str;
1125 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1132 /* read file contents into a string */
1133 static uint8_t *read_file(const char *filename)
1135 AVIOContext *pb = NULL;
1136 AVIOContext *dyn_buf = NULL;
1137 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1138 uint8_t buf[1024], *str;
1141 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1145 ret = avio_open_dyn_buf(&dyn_buf);
1150 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1151 avio_write(dyn_buf, buf, ret);
1152 avio_w8(dyn_buf, 0);
1155 ret = avio_close_dyn_buf(dyn_buf, &str);
1161 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1164 AVStream *st = ost->st;
1165 char *filter = NULL, *filter_script = NULL;
1167 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1168 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1170 if (filter_script && filter) {
1171 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1172 "output stream #%d:%d.\n", nb_output_files, st->index);
1177 return read_file(filter_script);
1179 return av_strdup(filter);
1181 return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
1185 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
1189 AVCodecContext *video_enc;
1190 char *frame_aspect_ratio = NULL;
1192 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
1194 video_enc = ost->enc_ctx;
1196 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1197 if (frame_aspect_ratio)
1198 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
1200 if (!ost->stream_copy) {
1201 const char *p = NULL;
1202 char *frame_rate = NULL, *frame_size = NULL;
1203 char *frame_pix_fmt = NULL;
1204 char *intra_matrix = NULL, *inter_matrix = NULL;
1208 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1209 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1210 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1214 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1215 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1216 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1220 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1221 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1222 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1225 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1227 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1229 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1230 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1233 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1235 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1237 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1238 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1241 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1244 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1245 for (i = 0; p; i++) {
1247 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1249 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1252 video_enc->rc_override =
1253 av_realloc(video_enc->rc_override,
1254 sizeof(RcOverride) * (i + 1));
1255 if (!video_enc->rc_override) {
1256 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
1259 video_enc->rc_override[i].start_frame = start;
1260 video_enc->rc_override[i].end_frame = end;
1262 video_enc->rc_override[i].qscale = q;
1263 video_enc->rc_override[i].quality_factor = 1.0;
1266 video_enc->rc_override[i].qscale = 0;
1267 video_enc->rc_override[i].quality_factor = -q/100.0;
1272 video_enc->rc_override_count = i;
1273 video_enc->intra_dc_precision = intra_dc_precision - 8;
1276 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1279 video_enc->flags |= AV_CODEC_FLAG_PASS1;
1281 video_enc->flags |= AV_CODEC_FLAG_PASS2;
1285 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1286 if (ost->logfile_prefix &&
1287 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1291 char logfilename[1024];
1294 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1295 ost->logfile_prefix ? ost->logfile_prefix :
1296 DEFAULT_PASS_LOGFILENAME_PREFIX,
1298 if (!strcmp(ost->enc->name, "libx264")) {
1299 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1301 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
1302 f = fopen(logfilename, "wb");
1304 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1305 logfilename, strerror(errno));
1310 char *logbuffer = read_file(logfilename);
1313 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1317 video_enc->stats_in = logbuffer;
1322 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1323 if (ost->forced_keyframes)
1324 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1326 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1328 ost->top_field_first = -1;
1329 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1332 ost->avfilter = get_ost_filters(o, oc, ost);
1336 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1342 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
1346 AVCodecContext *audio_enc;
1348 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
1351 audio_enc = ost->enc_ctx;
1352 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1354 if (!ost->stream_copy) {
1355 char *sample_fmt = NULL;
1357 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1359 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1361 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1362 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1366 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1368 ost->avfilter = get_ost_filters(o, oc, ost);
1376 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1380 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1381 if (!ost->stream_copy) {
1382 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1389 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1391 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1392 ost->stream_copy = 1;
1397 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1400 AVCodecContext *subtitle_enc;
1402 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1403 subtitle_enc = ost->enc_ctx;
1405 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1410 /* arg format is "output-stream-index:streamid-value". */
1411 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1413 OptionsContext *o = optctx;
1418 av_strlcpy(idx_str, arg, sizeof(idx_str));
1419 p = strchr(idx_str, ':');
1421 av_log(NULL, AV_LOG_FATAL,
1422 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1427 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1428 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1429 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1433 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1435 AVFormatContext *is = ifile->ctx;
1436 AVFormatContext *os = ofile->ctx;
1440 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1442 return AVERROR(ENOMEM);
1445 for (i = 0; i < is->nb_chapters; i++) {
1446 AVChapter *in_ch = is->chapters[i], *out_ch;
1447 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1448 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1449 AV_TIME_BASE_Q, in_ch->time_base);
1450 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1451 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1454 if (in_ch->end < ts_off)
1456 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1459 out_ch = av_mallocz(sizeof(AVChapter));
1461 return AVERROR(ENOMEM);
1463 out_ch->id = in_ch->id;
1464 out_ch->time_base = in_ch->time_base;
1465 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1466 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1469 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1471 os->chapters[os->nb_chapters++] = out_ch;
1476 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1477 AVFormatContext *oc)
1481 switch (ofilter->type) {
1482 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1483 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1485 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1490 ost->source_index = -1;
1491 ost->filter = ofilter;
1494 ofilter->format = -1;
1496 if (ost->stream_copy) {
1497 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1498 "which is fed from a complex filtergraph. Filtering and streamcopy "
1499 "cannot be used together.\n", ost->file_index, ost->index);
1503 avfilter_inout_free(&ofilter->out_tmp);
1506 static int init_complex_filters(void)
1510 for (i = 0; i < nb_filtergraphs; i++) {
1511 ret = init_complex_filtergraph(filtergraphs[i]);
1518 static int open_output_file(OptionsContext *o, const char *filename)
1520 AVFormatContext *oc;
1522 AVOutputFormat *file_oformat;
1526 AVDictionary *unused_opts = NULL;
1527 AVDictionaryEntry *e = NULL;
1529 GROW_ARRAY(output_files, nb_output_files);
1530 of = av_mallocz(sizeof(*of));
1533 output_files[nb_output_files - 1] = of;
1535 of->ost_index = nb_output_streams;
1536 of->recording_time = o->recording_time;
1537 of->start_time = o->start_time;
1538 of->limit_filesize = o->limit_filesize;
1539 of->shortest = o->shortest;
1540 av_dict_copy(&of->opts, o->g->format_opts, 0);
1542 if (!strcmp(filename, "-"))
1545 oc = avformat_alloc_context();
1547 print_error(filename, AVERROR(ENOMEM));
1551 if (o->recording_time != INT64_MAX)
1552 oc->duration = o->recording_time;
1555 file_oformat = av_guess_format(o->format, NULL, NULL);
1556 if (!file_oformat) {
1557 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1561 file_oformat = av_guess_format(NULL, filename, NULL);
1562 if (!file_oformat) {
1563 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1569 oc->oformat = file_oformat;
1570 oc->interrupt_callback = int_cb;
1571 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1573 /* create streams for all unlabeled output pads */
1574 for (i = 0; i < nb_filtergraphs; i++) {
1575 FilterGraph *fg = filtergraphs[i];
1576 for (j = 0; j < fg->nb_outputs; j++) {
1577 OutputFilter *ofilter = fg->outputs[j];
1579 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1582 switch (ofilter->type) {
1583 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1584 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1585 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1587 init_output_filter(ofilter, o, oc);
1591 if (!o->nb_stream_maps) {
1592 /* pick the "best" stream of each type */
1593 #define NEW_STREAM(type, index)\
1595 ost = new_ ## type ## _stream(o, oc);\
1596 ost->source_index = index;\
1597 ost->sync_ist = input_streams[index];\
1598 input_streams[index]->discard = 0;\
1599 input_streams[index]->st->discard = AVDISCARD_NONE;\
1602 /* video: highest resolution */
1603 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1604 int area = 0, idx = -1;
1605 for (i = 0; i < nb_input_streams; i++) {
1606 ist = input_streams[i];
1607 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1608 ist->st->codecpar->width * ist->st->codecpar->height > area) {
1609 area = ist->st->codecpar->width * ist->st->codecpar->height;
1613 NEW_STREAM(video, idx);
1616 /* audio: most channels */
1617 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1618 int channels = 0, idx = -1;
1619 for (i = 0; i < nb_input_streams; i++) {
1620 ist = input_streams[i];
1621 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1622 ist->st->codecpar->channels > channels) {
1623 channels = ist->st->codecpar->channels;
1627 NEW_STREAM(audio, idx);
1630 /* subtitles: pick first */
1631 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1632 for (i = 0; i < nb_input_streams; i++)
1633 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1634 NEW_STREAM(subtitle, i);
1638 /* do something with data? */
1640 for (i = 0; i < o->nb_stream_maps; i++) {
1641 StreamMap *map = &o->stream_maps[i];
1646 if (map->linklabel) {
1648 OutputFilter *ofilter = NULL;
1651 for (j = 0; j < nb_filtergraphs; j++) {
1652 fg = filtergraphs[j];
1653 for (k = 0; k < fg->nb_outputs; k++) {
1654 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1655 if (out && !strcmp(out->name, map->linklabel)) {
1656 ofilter = fg->outputs[k];
1663 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1664 "in any defined filter graph.\n", map->linklabel);
1667 init_output_filter(ofilter, o, oc);
1669 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1670 switch (ist->st->codecpar->codec_type) {
1671 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1672 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1673 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1674 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1675 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1677 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1678 map->file_index, map->stream_index);
1682 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1683 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1684 map->sync_stream_index];
1686 ist->st->discard = AVDISCARD_NONE;
1691 /* handle attached files */
1692 for (i = 0; i < o->nb_attachments; i++) {
1694 uint8_t *attachment;
1698 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1699 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1703 if ((len = avio_size(pb)) <= 0) {
1704 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1708 if (!(attachment = av_malloc(len))) {
1709 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1713 avio_read(pb, attachment, len);
1715 ost = new_attachment_stream(o, oc);
1716 ost->stream_copy = 0;
1717 ost->source_index = -1;
1718 ost->attachment_filename = o->attachments[i];
1719 ost->st->codecpar->extradata = attachment;
1720 ost->st->codecpar->extradata_size = len;
1722 p = strrchr(o->attachments[i], '/');
1723 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1727 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1728 av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
1729 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
1733 /* check if all codec options have been used */
1734 unused_opts = strip_specifiers(o->g->codec_opts);
1735 for (i = of->ost_index; i < nb_output_streams; i++) {
1737 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
1738 AV_DICT_IGNORE_SUFFIX)))
1739 av_dict_set(&unused_opts, e->key, NULL, 0);
1743 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1744 const AVClass *class = avcodec_get_class();
1745 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1746 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1749 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1750 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1751 "output file #%d (%s) is not an encoding option.\n", e->key,
1752 option->help ? option->help : "", nb_output_files - 1,
1757 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1758 "output file #%d (%s) has not been used for any stream. The most "
1759 "likely reason is either wrong type (e.g. a video option with "
1760 "no video streams) or that it is a private option of some encoder "
1761 "which was not actually used for any stream.\n", e->key,
1762 option->help ? option->help : "", nb_output_files - 1, filename);
1764 av_dict_free(&unused_opts);
1766 /* set the decoding_needed flags and create simple filtergraphs */
1767 for (i = of->ost_index; i < nb_output_streams; i++) {
1768 OutputStream *ost = output_streams[i];
1770 if (ost->encoding_needed && ost->source_index >= 0) {
1771 InputStream *ist = input_streams[ost->source_index];
1772 ist->decoding_needed = 1;
1774 if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
1775 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1776 err = init_simple_filtergraph(ist, ost);
1778 av_log(NULL, AV_LOG_ERROR,
1779 "Error initializing a simple filtergraph between streams "
1780 "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
1781 nb_output_files - 1, ost->st->index);
1788 * We want CFR output if and only if one of those is true:
1789 * 1) user specified output framerate with -r
1790 * 2) user specified -vsync cfr
1791 * 3) output format is CFR and the user didn't force vsync to
1792 * something else than CFR
1794 * in such a case, set ost->frame_rate
1796 if (ost->encoding_needed && ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1797 int format_cfr = !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS));
1798 int need_cfr = !!ost->frame_rate.num;
1800 if (video_sync_method == VSYNC_CFR ||
1801 (video_sync_method == VSYNC_AUTO && format_cfr))
1804 if (need_cfr && !ost->frame_rate.num) {
1805 InputStream *ist = ost->source_index >= 0 ? input_streams[ost->source_index] : NULL;
1807 if (ist && ist->framerate.num)
1808 ost->frame_rate = ist->framerate;
1809 else if (ist && ist->st->avg_frame_rate.num)
1810 ost->frame_rate = ist->st->avg_frame_rate;
1812 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1813 "for the output stream #%d:%d, but no information "
1814 "about the input framerate is available. Falling "
1815 "back to a default value of 25fps. Use the -r option "
1816 "if you want a different framerate.\n",
1817 ost->file_index, ost->index);
1818 ost->frame_rate = (AVRational){ 25, 1 };
1822 if (need_cfr && ost->enc->supported_framerates && !ost->force_fps) {
1823 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1824 ost->frame_rate = ost->enc->supported_framerates[idx];
1828 /* set the filter output constraints */
1830 OutputFilter *f = ost->filter;
1832 switch (ost->enc_ctx->codec_type) {
1833 case AVMEDIA_TYPE_VIDEO:
1834 f->frame_rate = ost->frame_rate;
1835 f->width = ost->enc_ctx->width;
1836 f->height = ost->enc_ctx->height;
1837 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
1838 f->format = ost->enc_ctx->pix_fmt;
1839 } else if (ost->enc->pix_fmts) {
1841 while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
1843 f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
1846 memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
1849 case AVMEDIA_TYPE_AUDIO:
1850 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
1851 f->format = ost->enc_ctx->sample_fmt;
1852 } else if (ost->enc->sample_fmts) {
1854 while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
1856 f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
1859 memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
1861 if (ost->enc_ctx->sample_rate) {
1862 f->sample_rate = ost->enc_ctx->sample_rate;
1863 } else if (ost->enc->supported_samplerates) {
1865 while (ost->enc->supported_samplerates[count])
1867 f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
1868 if (!f->sample_rates)
1870 memcpy(f->sample_rates, ost->enc->supported_samplerates,
1871 (count + 1) * sizeof(*f->sample_rates));
1873 if (ost->enc_ctx->channels) {
1874 f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
1875 } else if (ost->enc->channel_layouts) {
1877 while (ost->enc->channel_layouts[count])
1879 f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
1880 if (!f->channel_layouts)
1882 memcpy(f->channel_layouts, ost->enc->channel_layouts,
1883 (count + 1) * sizeof(*f->channel_layouts));
1891 /* check filename in case of an image number is expected */
1892 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1893 if (!av_filename_number_test(oc->filename)) {
1894 print_error(oc->filename, AVERROR(EINVAL));
1899 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1900 /* test if it already exists to avoid losing precious files */
1901 assert_file_overwrite(filename);
1904 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1905 &oc->interrupt_callback,
1907 print_error(filename, err);
1912 if (o->mux_preload) {
1914 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1915 av_dict_set(&of->opts, "preload", buf, 0);
1917 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1918 oc->flags |= AVFMT_FLAG_NONBLOCK;
1921 for (i = 0; i < o->nb_metadata_map; i++) {
1923 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1925 if (in_file_index >= nb_input_files) {
1926 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1929 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1930 in_file_index >= 0 ?
1931 input_files[in_file_index]->ctx : NULL, o);
1935 if (o->chapters_input_file >= nb_input_files) {
1936 if (o->chapters_input_file == INT_MAX) {
1937 /* copy chapters from the first input file that has them*/
1938 o->chapters_input_file = -1;
1939 for (i = 0; i < nb_input_files; i++)
1940 if (input_files[i]->ctx->nb_chapters) {
1941 o->chapters_input_file = i;
1945 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1946 o->chapters_input_file);
1950 if (o->chapters_input_file >= 0)
1951 copy_chapters(input_files[o->chapters_input_file], of,
1952 !o->metadata_chapters_manual);
1954 /* copy global metadata by default */
1955 if (!o->metadata_global_manual && nb_input_files)
1956 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1957 AV_DICT_DONT_OVERWRITE);
1958 if (!o->metadata_streams_manual)
1959 for (i = of->ost_index; i < nb_output_streams; i++) {
1961 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1963 ist = input_streams[output_streams[i]->source_index];
1964 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1967 /* process manually set metadata */
1968 for (i = 0; i < o->nb_metadata; i++) {
1971 const char *stream_spec;
1972 int index = 0, j, ret;
1974 val = strchr(o->metadata[i].u.str, '=');
1976 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1977 o->metadata[i].u.str);
1982 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1984 for (j = 0; j < oc->nb_streams; j++) {
1985 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1986 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1997 if (index < 0 || index >= oc->nb_chapters) {
1998 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2001 m = &oc->chapters[index]->metadata;
2004 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2007 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2014 static int opt_target(void *optctx, const char *opt, const char *arg)
2016 OptionsContext *o = optctx;
2017 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2018 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2020 if (!strncmp(arg, "pal-", 4)) {
2023 } else if (!strncmp(arg, "ntsc-", 5)) {
2026 } else if (!strncmp(arg, "film-", 5)) {
2030 /* Try to determine PAL/NTSC by peeking in the input files */
2031 if (nb_input_files) {
2033 for (j = 0; j < nb_input_files; j++) {
2034 for (i = 0; i < input_files[j]->nb_streams; i++) {
2035 AVStream *st = input_files[j]->ctx->streams[i];
2036 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
2038 fr = st->time_base.den * 1000 / st->time_base.num;
2042 } else if ((fr == 29970) || (fr == 23976)) {
2047 if (norm != UNKNOWN)
2051 if (norm != UNKNOWN)
2052 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2055 if (norm == UNKNOWN) {
2056 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2057 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2058 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2062 if (!strcmp(arg, "vcd")) {
2063 opt_video_codec(o, "c:v", "mpeg1video");
2064 opt_audio_codec(o, "c:a", "mp2");
2065 parse_option(o, "f", "vcd", options);
2067 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2068 parse_option(o, "r", frame_rates[norm], options);
2069 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2071 opt_default(NULL, "b", "1150000");
2072 opt_default(NULL, "maxrate", "1150000");
2073 opt_default(NULL, "minrate", "1150000");
2074 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
2076 opt_default(NULL, "b:a", "224000");
2077 parse_option(o, "ar", "44100", options);
2078 parse_option(o, "ac", "2", options);
2080 opt_default(NULL, "packetsize", "2324");
2081 opt_default(NULL, "muxrate", "3528"); // 2352 * 75 / 50;
2083 /* We have to offset the PTS, so that it is consistent with the SCR.
2084 SCR starts at 36000, but the first two packs contain only padding
2085 and the first pack from the other stream, respectively, may also have
2086 been written before.
2087 So the real data starts at SCR 36000+3*1200. */
2088 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2089 } else if (!strcmp(arg, "svcd")) {
2091 opt_video_codec(o, "c:v", "mpeg2video");
2092 opt_audio_codec(o, "c:a", "mp2");
2093 parse_option(o, "f", "svcd", options);
2095 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2096 parse_option(o, "r", frame_rates[norm], options);
2097 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2099 opt_default(NULL, "b", "2040000");
2100 opt_default(NULL, "maxrate", "2516000");
2101 opt_default(NULL, "minrate", "0"); // 1145000;
2102 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2103 opt_default(NULL, "scan_offset", "1");
2106 opt_default(NULL, "b:a", "224000");
2107 parse_option(o, "ar", "44100", options);
2109 opt_default(NULL, "packetsize", "2324");
2111 } else if (!strcmp(arg, "dvd")) {
2113 opt_video_codec(o, "c:v", "mpeg2video");
2114 opt_audio_codec(o, "c:a", "ac3");
2115 parse_option(o, "f", "dvd", options);
2117 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2118 parse_option(o, "r", frame_rates[norm], options);
2119 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2121 opt_default(NULL, "b", "6000000");
2122 opt_default(NULL, "maxrate", "9000000");
2123 opt_default(NULL, "minrate", "0"); // 1500000;
2124 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2126 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2127 opt_default(NULL, "muxrate", "25200"); // from mplex project: data_rate = 1260000. mux_rate = data_rate / 50
2129 opt_default(NULL, "b:a", "448000");
2130 parse_option(o, "ar", "48000", options);
2132 } else if (!strncmp(arg, "dv", 2)) {
2134 parse_option(o, "f", "dv", options);
2136 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2137 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2138 norm == PAL ? "yuv420p" : "yuv411p", options);
2139 parse_option(o, "r", frame_rates[norm], options);
2141 parse_option(o, "ar", "48000", options);
2142 parse_option(o, "ac", "2", options);
2145 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2146 return AVERROR(EINVAL);
2149 av_dict_copy(&o->g->codec_opts, codec_opts, 0);
2150 av_dict_copy(&o->g->format_opts, format_opts, 0);
2155 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2157 av_free (vstats_filename);
2158 vstats_filename = av_strdup (arg);
2162 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2165 time_t today2 = time(NULL);
2166 struct tm *today = localtime(&today2);
2168 if (!today) { // maybe tomorrow
2169 av_log(NULL, AV_LOG_FATAL, "Unable to get current time.\n");
2173 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2175 return opt_vstats_file(NULL, opt, filename);
2178 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2180 OptionsContext *o = optctx;
2181 return parse_option(o, "frames:v", arg, options);
2184 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2186 OptionsContext *o = optctx;
2187 return parse_option(o, "frames:a", arg, options);
2190 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2192 OptionsContext *o = optctx;
2193 return parse_option(o, "frames:d", arg, options);
2196 static int opt_video_tag(void *optctx, const char *opt, const char *arg)
2198 OptionsContext *o = optctx;
2199 return parse_option(o, "tag:v", arg, options);
2202 static int opt_audio_tag(void *optctx, const char *opt, const char *arg)
2204 OptionsContext *o = optctx;
2205 return parse_option(o, "tag:a", arg, options);
2208 static int opt_subtitle_tag(void *optctx, const char *opt, const char *arg)
2210 OptionsContext *o = optctx;
2211 return parse_option(o, "tag:s", arg, options);
2214 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2216 OptionsContext *o = optctx;
2217 return parse_option(o, "filter:v", arg, options);
2220 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2222 OptionsContext *o = optctx;
2223 return parse_option(o, "filter:a", arg, options);
2226 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2228 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2229 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2230 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2232 if (video_sync_method == VSYNC_AUTO)
2233 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2237 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2239 OptionsContext *o = optctx;
2240 char layout_str[32];
2243 int ret, channels, ac_str_size;
2246 layout = av_get_channel_layout(arg);
2248 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2249 return AVERROR(EINVAL);
2251 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2252 ret = opt_default(NULL, opt, layout_str);
2256 /* set 'ac' option based on channel layout */
2257 channels = av_get_channel_layout_nb_channels(layout);
2258 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2259 stream_str = strchr(opt, ':');
2260 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2261 ac_str = av_mallocz(ac_str_size);
2263 return AVERROR(ENOMEM);
2264 av_strlcpy(ac_str, "ac", 3);
2266 av_strlcat(ac_str, stream_str, ac_str_size);
2267 ret = parse_option(o, ac_str, layout_str, options);
2273 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2275 OptionsContext *o = optctx;
2276 return parse_option(o, "q:a", arg, options);
2279 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2281 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2282 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2283 return AVERROR(ENOMEM);
2284 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2285 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2286 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2287 return AVERROR(ENOMEM);
2291 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2293 uint8_t *graph_desc = read_file(arg);
2295 return AVERROR(EINVAL);
2297 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2298 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2299 return AVERROR(ENOMEM);
2300 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2301 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2305 void show_help_default(const char *opt, const char *arg)
2307 /* per-file options have at least one of those set */
2308 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2309 int show_advanced = 0, show_avoptions = 0;
2312 if (!strcmp(opt, "long"))
2314 else if (!strcmp(opt, "full"))
2315 show_advanced = show_avoptions = 1;
2317 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2322 printf("Getting help:\n"
2323 " -h -- print basic options\n"
2324 " -h long -- print more options\n"
2325 " -h full -- print all options (including all format and codec specific options, very long)\n"
2326 " -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
2327 " See man %s for detailed description of the options.\n"
2328 "\n", program_name);
2330 show_help_options(options, "Print help / information / capabilities:",
2333 show_help_options(options, "Global options (affect whole program "
2334 "instead of just one file:",
2335 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2337 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2338 per_file | OPT_EXIT, 0);
2340 show_help_options(options, "Per-file main options:", 0,
2341 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2342 OPT_EXIT, per_file);
2344 show_help_options(options, "Advanced per-file options:",
2345 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2347 show_help_options(options, "Video options:",
2348 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2350 show_help_options(options, "Advanced Video options:",
2351 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2353 show_help_options(options, "Audio options:",
2354 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2356 show_help_options(options, "Advanced Audio options:",
2357 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2358 show_help_options(options, "Subtitle options:",
2359 OPT_SUBTITLE, 0, 0);
2362 if (show_avoptions) {
2363 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2364 show_help_children(avcodec_get_class(), flags);
2365 show_help_children(avformat_get_class(), flags);
2366 show_help_children(sws_get_class(), flags);
2367 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM);
2371 void show_usage(void)
2373 printf("Hyper fast Audio and Video encoder\n");
2374 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2383 static const OptionGroupDef groups[] = {
2384 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2385 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2388 static int open_files(OptionGroupList *l, const char *inout,
2389 int (*open_file)(OptionsContext*, const char*))
2393 for (i = 0; i < l->nb_groups; i++) {
2394 OptionGroup *g = &l->groups[i];
2400 ret = parse_optgroup(&o, g);
2402 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2403 "%s.\n", inout, g->arg);
2407 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2408 ret = open_file(&o, g->arg);
2411 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2415 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2421 int avconv_parse_options(int argc, char **argv)
2423 OptionParseContext octx;
2427 memset(&octx, 0, sizeof(octx));
2429 /* split the commandline into an internal representation */
2430 ret = split_commandline(&octx, argc, argv, options, groups,
2431 FF_ARRAY_ELEMS(groups));
2433 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2437 /* apply global options */
2438 ret = parse_optgroup(NULL, &octx.global_opts);
2440 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2444 /* open input files */
2445 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2447 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2451 /* create the complex filtergraphs */
2452 ret = init_complex_filters();
2454 av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
2458 /* open output files */
2459 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2461 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2466 uninit_parse_context(&octx);
2468 av_strerror(ret, error, sizeof(error));
2469 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2474 #define OFFSET(x) offsetof(OptionsContext, x)
2475 const OptionDef options[] = {
2477 #include "cmdutils_common_opts.h"
2478 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2479 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2480 "force format", "fmt" },
2481 { "y", OPT_BOOL, { &file_overwrite },
2482 "overwrite output files" },
2483 { "n", OPT_BOOL, { &file_skip },
2484 "never overwrite output files" },
2485 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2486 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2487 "codec name", "codec" },
2488 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2489 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2490 "codec name", "codec" },
2491 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2492 OPT_OUTPUT, { .off = OFFSET(presets) },
2493 "preset name", "preset" },
2494 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2495 OPT_OUTPUT, { .func_arg = opt_map },
2496 "set input stream mapping",
2497 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2498 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2499 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2500 "set metadata information of outfile from infile",
2501 "outfile[,metadata]:infile[,metadata]" },
2502 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2503 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2504 "set chapters mapping", "input_file_index" },
2505 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2506 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2507 "record or transcode \"duration\" seconds of audio/video",
2509 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2510 "set the limit file size in bytes", "limit_size" },
2511 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2512 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2513 "set the start time offset", "time_off" },
2514 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2515 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2516 "enable/disable accurate seeking with -ss" },
2517 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2518 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2519 "set the input ts offset", "time_off" },
2520 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2521 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2522 "set the input ts scale", "scale" },
2523 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2524 "add metadata", "string=string" },
2525 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2526 OPT_OUTPUT, { .func_arg = opt_data_frames },
2527 "set the number of data frames to record", "number" },
2528 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2529 "add timings for benchmarking" },
2530 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2531 "set max runtime in seconds", "limit" },
2532 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2533 "dump each input packet" },
2534 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2535 "when dumping packets, also dump the payload" },
2536 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2537 OPT_INPUT, { .off = OFFSET(rate_emu) },
2538 "read input at native frame rate", "" },
2539 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2540 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2541 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2542 { "vsync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vsync },
2543 "video sync method", "" },
2544 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2545 "audio sync method", "" },
2546 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2547 "audio drift threshold", "threshold" },
2548 { "copyts", OPT_BOOL | OPT_EXPERT, { ©_ts },
2549 "copy timestamps" },
2550 { "copytb", OPT_BOOL | OPT_EXPERT, { ©_tb },
2551 "copy input stream time base when stream copying" },
2552 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2553 OPT_OUTPUT, { .off = OFFSET(shortest) },
2554 "finish encoding within shortest input" },
2555 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2556 "timestamp discontinuity delta threshold", "threshold" },
2557 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2558 "exit on error", "error" },
2559 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2560 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2561 "copy initial non-keyframes" },
2562 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2563 "set the number of frames to record", "number" },
2564 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2565 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2566 "force codec tag/fourcc", "fourcc/tag" },
2567 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2568 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2569 "use fixed quality scale (VBR)", "q" },
2570 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2571 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2572 "use fixed quality scale (VBR)", "q" },
2573 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2574 "set stream filterchain", "filter_list" },
2575 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2576 "read stream filtergraph description from a file", "filename" },
2577 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2578 "create a complex filtergraph", "graph_description" },
2579 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2580 "read complex filtergraph description from a file", "filename" },
2581 { "stats", OPT_BOOL, { &print_stats },
2582 "print progress report during encoding", },
2583 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2584 OPT_OUTPUT, { .func_arg = opt_attach },
2585 "add an attachment to the output file", "filename" },
2586 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2587 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2588 "extract an attachment into a file", "filename" },
2589 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
2590 OPT_OFFSET, { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
2593 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2594 "set the number of video frames to record", "number" },
2595 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2596 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2597 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2598 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2599 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2600 "set frame size (WxH or abbreviation)", "size" },
2601 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2602 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2603 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2604 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2605 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2606 "set pixel format", "format" },
2607 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(video_disable) },
2609 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2610 "discard threshold", "n" },
2611 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2612 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2613 "rate control override for specific intervals", "override" },
2614 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2615 OPT_OUTPUT, { .func_arg = opt_video_codec },
2616 "force video codec ('copy' to copy stream)", "codec" },
2617 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2618 "select the pass number (1 or 2)", "n" },
2619 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2620 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2621 "select two pass log file name prefix", "prefix" },
2622 { "vstats", OPT_VIDEO | OPT_EXPERT , { .func_arg = &opt_vstats },
2623 "dump video coding statistics to file" },
2624 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { .func_arg = opt_vstats_file },
2625 "dump video coding statistics to file", "file" },
2626 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2627 "video filters", "filter list" },
2628 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2629 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2630 "specify intra matrix coeffs", "matrix" },
2631 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2632 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2633 "specify inter matrix coeffs", "matrix" },
2634 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2635 OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2636 "top=1/bottom=0/auto=-1 field first", "" },
2637 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2638 "intra_dc_precision", "precision" },
2639 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2640 OPT_OUTPUT, { .func_arg = opt_video_tag },
2641 "force video tag/fourcc", "fourcc/tag" },
2642 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2643 "show QP histogram" },
2644 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2645 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2646 "force the selected framerate, disable the best supported framerate selection" },
2647 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2648 OPT_OUTPUT, { .func_arg = opt_streamid },
2649 "set the value of an outfile streamid", "streamIndex:value" },
2650 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2651 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2652 "force key frames at specified timestamps", "timestamps" },
2653 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2654 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2655 "use HW accelerated decoding", "hwaccel name" },
2656 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2657 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2658 "select a device for HW acceleration", "devicename" },
2659 { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2660 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_output_formats) },
2661 "select output format used with HW accelerated decoding", "format" },
2663 { "hwaccels", OPT_EXIT, { .func_arg = show_hwaccels },
2664 "show available HW acceleration methods" },
2665 { "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC |
2666 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) },
2667 "automatically insert correct rotate filters" },
2668 { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT, { &hwaccel_lax_profile_check},
2669 "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
2672 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2673 "set the number of audio frames to record", "number" },
2674 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2675 "set audio quality (codec-specific)", "quality", },
2676 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2677 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2678 "set audio sampling rate (in Hz)", "rate" },
2679 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2680 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2681 "set number of audio channels", "channels" },
2682 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(audio_disable) },
2684 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2685 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2686 "force audio codec ('copy' to copy stream)", "codec" },
2687 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2688 OPT_OUTPUT, { .func_arg = opt_audio_tag },
2689 "force audio tag/fourcc", "fourcc/tag" },
2690 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2691 "change audio volume (256=normal)" , "volume" },
2692 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2693 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2694 "set sample format", "format" },
2695 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2696 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2697 "set channel layout", "layout" },
2698 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2699 "audio filters", "filter list" },
2701 /* subtitle options */
2702 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2703 "disable subtitle" },
2704 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2705 "force subtitle codec ('copy' to copy stream)", "codec" },
2706 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_subtitle_tag }
2707 , "force subtitle tag/fourcc", "fourcc/tag" },
2710 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2713 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2714 "set the maximum demux-decode delay", "seconds" },
2715 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2716 "set the initial demux-decode delay", "seconds" },
2718 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2719 "A comma-separated list of bitstream filters", "bitstream_filters" },
2721 { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
2722 "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
2724 /* data codec support */
2725 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2726 "force data codec ('copy' to copy stream)", "codec" },
2729 { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
2730 "set VAAPI hardware device (DRM path or X11 display name)", "device" },