xcb: Add all the libraries to the link line explicitly
[libav.git] / avconv_opt.c
1 /*
2 * avconv option parsing
3 *
4 * This file is part of Libav.
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include <stdint.h>
22
23 #include "avconv.h"
24 #include "cmdutils.h"
25
26 #include "libavformat/avformat.h"
27
28 #include "libavcodec/avcodec.h"
29
30 #include "libavfilter/avfilter.h"
31
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
43
44 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
45
46 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
47 {\
48 int i, ret;\
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;\
53 else if (ret < 0)\
54 exit_program(1);\
55 }\
56 }
57
58 const HWAccel hwaccels[] = {
59 #if HAVE_VDPAU_X11
60 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
61 #endif
62 #if HAVE_DXVA2_LIB
63 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
64 #endif
65 #if CONFIG_VDA
66 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
67 #endif
68 #if CONFIG_LIBMFX
69 { "qsv", qsv_init, HWACCEL_QSV, AV_PIX_FMT_QSV },
70 #endif
71 #if CONFIG_VAAPI
72 { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
73 #endif
74 { 0 },
75 };
76 int hwaccel_lax_profile_check = 0;
77 AVBufferRef *hw_device_ctx;
78
79 char *vstats_filename;
80
81 float audio_drift_threshold = 0.1;
82 float dts_delta_threshold = 10;
83
84 int audio_volume = 256;
85 int audio_sync_method = 0;
86 int video_sync_method = VSYNC_AUTO;
87 int do_benchmark = 0;
88 int do_hex_dump = 0;
89 int do_pkt_dump = 0;
90 int copy_ts = 0;
91 int copy_tb = 1;
92 int exit_on_error = 0;
93 int print_stats = 1;
94 int qp_hist = 0;
95
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;
102
103 static void uninit_options(OptionsContext *o)
104 {
105 const OptionDef *po = options;
106 int i;
107
108 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
109 while (po->name) {
110 void *dst = (uint8_t*)o + po->u.off;
111
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);
119 }
120 av_freep(so);
121 *count = 0;
122 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
123 av_freep(dst);
124 po++;
125 }
126
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);
132 }
133
134 static void init_options(OptionsContext *o)
135 {
136 memset(o, 0, sizeof(*o));
137
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;
144 }
145
146 /* return a copy of the input with the stream specifiers removed from the keys */
147 static AVDictionary *strip_specifiers(AVDictionary *dict)
148 {
149 AVDictionaryEntry *e = NULL;
150 AVDictionary *ret = NULL;
151
152 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
153 char *p = strchr(e->key, ':');
154
155 if (p)
156 *p = 0;
157 av_dict_set(&ret, e->key, e->value, 0);
158 if (p)
159 *p = ':';
160 }
161 return ret;
162 }
163
164 static double parse_frame_aspect_ratio(const char *arg)
165 {
166 int x = 0, y = 0;
167 double ar = 0;
168 const char *p;
169 char *end;
170
171 p = strchr(arg, ':');
172 if (p) {
173 x = strtol(arg, &end, 10);
174 if (end == p)
175 y = strtol(end + 1, &end, 10);
176 if (x > 0 && y > 0)
177 ar = (double)x / (double)y;
178 } else
179 ar = strtod(arg, NULL);
180
181 if (!ar) {
182 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
183 exit_program(1);
184 }
185 return ar;
186 }
187
188 static int show_hwaccels(void *optctx, const char *opt, const char *arg)
189 {
190 int i;
191
192 printf("Supported hardware acceleration:\n");
193 for (i = 0; i < FF_ARRAY_ELEMS(hwaccels) - 1; i++) {
194 printf("%s\n", hwaccels[i].name);
195 }
196 printf("\n");
197 return 0;
198 }
199
200 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
201 {
202 OptionsContext *o = optctx;
203 return parse_option(o, "codec:a", arg, options);
204 }
205
206 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
207 {
208 OptionsContext *o = optctx;
209 return parse_option(o, "codec:v", arg, options);
210 }
211
212 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
213 {
214 OptionsContext *o = optctx;
215 return parse_option(o, "codec:s", arg, options);
216 }
217
218 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
219 {
220 OptionsContext *o = optctx;
221 return parse_option(o, "codec:d", arg, options);
222 }
223
224 static int opt_map(void *optctx, const char *opt, const char *arg)
225 {
226 OptionsContext *o = optctx;
227 StreamMap *m = NULL;
228 int i, negative = 0, file_idx;
229 int sync_file_idx = -1, sync_stream_idx;
230 char *p, *sync;
231 char *map;
232
233 if (*arg == '-') {
234 negative = 1;
235 arg++;
236 }
237 map = av_strdup(arg);
238 if (!map)
239 return AVERROR(ENOMEM);
240
241 /* parse sync stream first, just pick first matching stream */
242 if (sync = strchr(map, ',')) {
243 *sync = 0;
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);
247 exit_program(1);
248 }
249 if (*sync)
250 sync++;
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) {
254 sync_stream_idx = i;
255 break;
256 }
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);
260 exit_program(1);
261 }
262 }
263
264
265 if (map[0] == '[') {
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, "]");
271 if (!m->linklabel) {
272 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
273 exit_program(1);
274 }
275 } else {
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);
279 exit_program(1);
280 }
281 if (negative)
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)
289 m->disabled = 1;
290 }
291 else
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)
295 continue;
296 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
297 m = &o->stream_maps[o->nb_stream_maps - 1];
298
299 m->file_index = file_idx;
300 m->stream_index = i;
301
302 if (sync_file_idx >= 0) {
303 m->sync_file_index = sync_file_idx;
304 m->sync_stream_index = sync_stream_idx;
305 } else {
306 m->sync_file_index = file_idx;
307 m->sync_stream_index = i;
308 }
309 }
310 }
311
312 if (!m) {
313 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
314 exit_program(1);
315 }
316
317 av_freep(&map);
318 return 0;
319 }
320
321 static int opt_attach(void *optctx, const char *opt, const char *arg)
322 {
323 OptionsContext *o = optctx;
324 GROW_ARRAY(o->attachments, o->nb_attachments);
325 o->attachments[o->nb_attachments - 1] = arg;
326 return 0;
327 }
328
329 #if CONFIG_VAAPI
330 static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
331 {
332 int err;
333 err = vaapi_device_init(arg);
334 if (err < 0)
335 exit_program(1);
336 return 0;
337 }
338 #endif
339
340 /**
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
346 */
347 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
348 {
349 if (*arg) {
350 *type = *arg;
351 switch (*arg) {
352 case 'g':
353 break;
354 case 's':
355 if (*(++arg) && *arg != ':') {
356 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
357 exit_program(1);
358 }
359 *stream_spec = *arg == ':' ? arg + 1 : "";
360 break;
361 case 'c':
362 case 'p':
363 if (*(++arg) == ':')
364 *index = strtol(++arg, NULL, 0);
365 break;
366 default:
367 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
368 exit_program(1);
369 }
370 } else
371 *type = 'g';
372 }
373
374 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
375 {
376 AVDictionary **meta_in = NULL;
377 AVDictionary **meta_out;
378 int i, ret = 0;
379 char type_in, type_out;
380 const char *istream_spec = NULL, *ostream_spec = NULL;
381 int idx_in = 0, idx_out = 0;
382
383 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
384 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
385
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;
392
393 /* ic is NULL when just disabling automatic mappings */
394 if (!ic)
395 return 0;
396
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",\
400 (desc), (index));\
401 exit_program(1);\
402 }
403
404 #define SET_DICT(type, meta, context, index)\
405 switch (type) {\
406 case 'g':\
407 meta = &context->metadata;\
408 break;\
409 case 'c':\
410 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
411 meta = &context->chapters[index]->metadata;\
412 break;\
413 case 'p':\
414 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
415 meta = &context->programs[index]->metadata;\
416 break;\
417 case 's':\
418 break; /* handled separately below */ \
419 default: av_assert0(0);\
420 }\
421
422 SET_DICT(type_in, meta_in, ic, idx_in);
423 SET_DICT(type_out, meta_out, oc, idx_out);
424
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;
430 break;
431 } else if (ret < 0)
432 exit_program(1);
433 }
434 if (!meta_in) {
435 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
436 exit_program(1);
437 }
438 }
439
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);
445 } else if (ret < 0)
446 exit_program(1);
447 }
448 } else
449 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
450
451 return 0;
452 }
453
454 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
455 {
456 const AVCodecDescriptor *desc;
457 const char *codec_string = encoder ? "encoder" : "decoder";
458 AVCodec *codec;
459
460 codec = encoder ?
461 avcodec_find_encoder_by_name(name) :
462 avcodec_find_decoder_by_name(name);
463
464 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
465 codec = encoder ? avcodec_find_encoder(desc->id) :
466 avcodec_find_decoder(desc->id);
467 if (codec)
468 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
469 codec_string, codec->name, desc->name);
470 }
471
472 if (!codec) {
473 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
474 exit_program(1);
475 }
476 if (codec->type != type) {
477 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
478 exit_program(1);
479 }
480 return codec;
481 }
482
483 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
484 {
485 char *codec_name = NULL;
486
487 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
488 if (codec_name) {
489 AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
490 st->codecpar->codec_id = codec->id;
491 return codec;
492 } else
493 return avcodec_find_decoder(st->codecpar->codec_id);
494 }
495
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)
499 {
500 int i, ret;
501
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;
509 char *next;
510
511 if (!ist)
512 exit_program(1);
513
514 GROW_ARRAY(input_streams, nb_input_streams);
515 input_streams[nb_input_streams - 1] = ist;
516
517 ist->st = st;
518 ist->file_index = nb_input_files;
519 ist->discard = 1;
520 st->discard = AVDISCARD_ALL;
521 ist->nb_samples = 0;
522 ist->min_pts = INT64_MAX;
523 ist->max_pts = INT64_MIN;
524
525 ist->ts_scale = 1.0;
526 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
527
528 ist->autorotate = 1;
529 MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
530
531 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
532 if (codec_tag) {
533 uint32_t tag = strtol(codec_tag, &next, 0);
534 if (*next)
535 tag = AV_RL32(codec_tag);
536 st->codecpar->codec_tag = tag;
537 }
538
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);
541
542 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
543 if (!ist->dec_ctx) {
544 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
545 exit_program(1);
546 }
547
548 ret = avcodec_parameters_to_context(ist->dec_ctx, par);
549 if (ret < 0) {
550 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
551 exit_program(1);
552 }
553
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,
558 framerate) < 0) {
559 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
560 framerate);
561 exit_program(1);
562 }
563
564 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
565 if (hwaccel) {
566 if (!strcmp(hwaccel, "none"))
567 ist->hwaccel_id = HWACCEL_NONE;
568 else if (!strcmp(hwaccel, "auto"))
569 ist->hwaccel_id = HWACCEL_AUTO;
570 else {
571 int i;
572 for (i = 0; hwaccels[i].name; i++) {
573 if (!strcmp(hwaccels[i].name, hwaccel)) {
574 ist->hwaccel_id = hwaccels[i].id;
575 break;
576 }
577 }
578
579 if (!ist->hwaccel_id) {
580 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
581 hwaccel);
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");
586 exit_program(1);
587 }
588 }
589 }
590
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)
595 exit_program(1);
596 }
597
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);
605 }
606 } else {
607 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
608 }
609
610 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
611
612 break;
613 case AVMEDIA_TYPE_AUDIO:
614 guess_input_channel_layout(ist);
615 break;
616 case AVMEDIA_TYPE_DATA:
617 case AVMEDIA_TYPE_SUBTITLE:
618 case AVMEDIA_TYPE_ATTACHMENT:
619 case AVMEDIA_TYPE_UNKNOWN:
620 break;
621 default:
622 abort();
623 }
624 }
625 }
626
627 static void assert_file_overwrite(const char *filename)
628 {
629 if (file_overwrite && file_skip) {
630 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
631 exit_program(1);
632 }
633
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);
640 fflush(stderr);
641 if (!read_yesno()) {
642 fprintf(stderr, "Not overwriting - exiting\n");
643 exit_program(1);
644 }
645 }
646 else {
647 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
648 exit_program(1);
649 }
650 }
651 }
652 }
653
654 static void dump_attachment(AVStream *st, const char *filename)
655 {
656 int ret;
657 AVIOContext *out = NULL;
658 AVDictionaryEntry *e;
659
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);
663 return;
664 }
665 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
666 filename = e->value;
667 if (!*filename) {
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);
670 exit_program(1);
671 }
672
673 assert_file_overwrite(filename);
674
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",
677 filename);
678 exit_program(1);
679 }
680
681 avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
682 avio_flush(out);
683 avio_close(out);
684 }
685
686 static int open_input_file(OptionsContext *o, const char *filename)
687 {
688 InputFile *f;
689 AVFormatContext *ic;
690 AVInputFormat *file_iformat = NULL;
691 int err, i, ret;
692 int64_t timestamp;
693 uint8_t buf[128];
694 AVDictionary **opts;
695 AVDictionary *unused_opts = NULL;
696 AVDictionaryEntry *e = NULL;
697 int orig_nb_streams; // number of streams before avformat_find_stream_info
698
699 if (o->format) {
700 if (!(file_iformat = av_find_input_format(o->format))) {
701 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
702 exit_program(1);
703 }
704 }
705
706 if (!strcmp(filename, "-"))
707 filename = "pipe:";
708
709 using_stdin |= !strncmp(filename, "pipe:", 5) ||
710 !strcmp(filename, "/dev/stdin");
711
712 /* get default parameters from command line */
713 ic = avformat_alloc_context();
714 if (!ic) {
715 print_error(filename, AVERROR(ENOMEM));
716 exit_program(1);
717 }
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);
721 }
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);
732 }
733 }
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);
742 }
743 }
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);
746 }
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);
749
750 ic->flags |= AVFMT_FLAG_NONBLOCK;
751 ic->interrupt_callback = int_cb;
752
753 /* open the input file with generic Libav function */
754 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
755 if (err < 0) {
756 print_error(filename, err);
757 exit_program(1);
758 }
759 assert_avoptions(o->g->format_opts);
760
761 /* apply forced codec ids */
762 for (i = 0; i < ic->nb_streams; i++)
763 choose_decoder(o, ic, ic->streams[i]);
764
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;
768
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);
772 if (ret < 0) {
773 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
774 avformat_close_input(&ic);
775 exit_program(1);
776 }
777
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;
782
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);
786 if (ret < 0) {
787 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
788 filename, (double)timestamp / AV_TIME_BASE);
789 }
790 }
791
792 /* update the current parameters so that they match the one of the input stream */
793 add_input_streams(o, ic);
794
795 /* dump the file content */
796 av_dump_format(ic, nb_input_files, filename, 0);
797
798 GROW_ARRAY(input_files, nb_input_files);
799 f = av_mallocz(sizeof(*f));
800 if (!f)
801 exit_program(1);
802 input_files[nb_input_files - 1] = f;
803
804 f->ctx = ic;
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;
812 f->loop = o->loop;
813 f->duration = 0;
814 f->time_base = (AVRational){ 1, 1 };
815
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++) {
819 e = NULL;
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);
823 }
824
825 e = NULL;
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);
830 if (!option)
831 continue;
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,
836 filename);
837 exit_program(1);
838 }
839
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);
846 }
847 av_dict_free(&unused_opts);
848
849 for (i = 0; i < o->nb_dump_attachment; i++) {
850 int j;
851
852 for (j = 0; j < ic->nb_streams; j++) {
853 AVStream *st = ic->streams[j];
854
855 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
856 dump_attachment(st, o->dump_attachment[i].u.str);
857 }
858 }
859
860 for (i = 0; i < orig_nb_streams; i++)
861 av_dict_free(&opts[i]);
862 av_freep(&opts);
863
864 return 0;
865 }
866
867 static uint8_t *get_line(AVIOContext *s)
868 {
869 AVIOContext *line;
870 uint8_t *buf;
871 char c;
872
873 if (avio_open_dyn_buf(&line) < 0) {
874 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
875 exit_program(1);
876 }
877
878 while ((c = avio_r8(s)) && c != '\n')
879 avio_w8(line, c);
880 avio_w8(line, 0);
881 avio_close_dyn_buf(line, &buf);
882
883 return buf;
884 }
885
886 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
887 {
888 int i, ret = -1;
889 char filename[1000];
890 const char *base[3] = { getenv("AVCONV_DATADIR"),
891 getenv("HOME"),
892 AVCONV_DATADIR,
893 };
894
895 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
896 if (!base[i])
897 continue;
898 if (codec_name) {
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);
902 }
903 if (ret < 0) {
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);
907 }
908 }
909 return ret;
910 }
911
912 static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
913 {
914 enum AVMediaType type = ost->st->codecpar->codec_type;
915 char *codec_name = NULL;
916
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);
919 if (!codec_name) {
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);
923 if (!ost->enc) {
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;
929 }
930 } else if (!strcmp(codec_name, "copy"))
931 ost->stream_copy = 1;
932 else {
933 ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
934 ost->st->codecpar->codec_id = ost->enc->id;
935 }
936
937 ost->encoding_needed = !ost->stream_copy;
938 } else {
939 /* no encoding supported for other media types */
940 ost->stream_copy = 1;
941 ost->encoding_needed = 0;
942 }
943
944 return 0;
945 }
946
947 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
948 {
949 OutputStream *ost;
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;
954 double qscale = -1;
955
956 if (!st) {
957 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
958 exit_program(1);
959 }
960
961 if (oc->nb_streams - 1 < o->nb_streamid_map)
962 st->id = o->streamid_map[oc->nb_streams - 1];
963
964 GROW_ARRAY(output_streams, nb_output_streams);
965 if (!(ost = av_mallocz(sizeof(*ost))))
966 exit_program(1);
967 output_streams[nb_output_streams - 1] = ost;
968
969 ost->file_index = nb_output_files - 1;
970 ost->index = idx;
971 ost->st = st;
972 st->codecpar->codec_type = type;
973
974 ret = choose_encoder(o, oc, ost);
975 if (ret < 0) {
976 av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
977 "%d:%d\n", ost->file_index, ost->index);
978 exit_program(1);
979 }
980
981 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
982 if (!ost->enc_ctx) {
983 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
984 exit_program(1);
985 }
986 ost->enc_ctx->codec_type = type;
987
988 if (ost->enc) {
989 AVIOContext *s = NULL;
990 char *buf = NULL, *arg = NULL, *preset = NULL;
991
992 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
993
994 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
995 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
996 do {
997 buf = get_line(s);
998 if (!buf[0] || buf[0] == '#') {
999 av_free(buf);
1000 continue;
1001 }
1002 if (!(arg = strchr(buf, '='))) {
1003 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1004 exit_program(1);
1005 }
1006 *arg++ = 0;
1007 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1008 av_free(buf);
1009 } while (!s->eof_reached);
1010 avio_close(s);
1011 }
1012 if (ret) {
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);
1016 exit_program(1);
1017 }
1018 } else {
1019 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1020 }
1021
1022 ost->max_frames = INT64_MAX;
1023 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1024
1025 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
1026 while (bsfs && *bsfs) {
1027 const AVBitStreamFilter *filter;
1028 char *bsf;
1029
1030 bsf = av_get_token(&bsfs, ",");
1031 if (!bsf)
1032 exit_program(1);
1033
1034 filter = av_bsf_get_by_name(bsf);
1035 if (!filter) {
1036 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1037 exit_program(1);
1038 }
1039 av_freep(&bsf);
1040
1041 ost->bitstream_filters = av_realloc_array(ost->bitstream_filters,
1042 ost->nb_bitstream_filters + 1,
1043 sizeof(*ost->bitstream_filters));
1044 if (!ost->bitstream_filters)
1045 exit_program(1);
1046
1047 ost->bitstream_filters[ost->nb_bitstream_filters++] = filter;
1048 if (*bsfs)
1049 bsfs++;
1050 }
1051
1052 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1053 if (codec_tag) {
1054 uint32_t tag = strtol(codec_tag, &next, 0);
1055 if (*next)
1056 tag = AV_RL32(codec_tag);
1057 ost->enc_ctx->codec_tag = tag;
1058 }
1059
1060 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1061 if (qscale >= 0) {
1062 ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
1063 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1064 }
1065
1066 ost->max_muxing_queue_size = 128;
1067 MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
1068 ost->max_muxing_queue_size *= sizeof(AVPacket);
1069
1070 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1071 ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
1072
1073 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1074
1075 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1076
1077 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
1078 ost->last_mux_dts = AV_NOPTS_VALUE;
1079
1080 ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
1081 if (!ost->muxing_queue)
1082 exit_program(1);
1083
1084 return ost;
1085 }
1086
1087 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1088 {
1089 int i;
1090 const char *p = str;
1091 for (i = 0;; i++) {
1092 dest[i] = atoi(p);
1093 if (i == 63)
1094 break;
1095 p = strchr(p, ',');
1096 if (!p) {
1097 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1098 exit_program(1);
1099 }
1100 p++;
1101 }
1102 }
1103
1104 /* read file contents into a string */
1105 static uint8_t *read_file(const char *filename)
1106 {
1107 AVIOContext *pb = NULL;
1108 AVIOContext *dyn_buf = NULL;
1109 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1110 uint8_t buf[1024], *str;
1111
1112 if (ret < 0) {
1113 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1114 return NULL;
1115 }
1116
1117 ret = avio_open_dyn_buf(&dyn_buf);
1118 if (ret < 0) {
1119 avio_closep(&pb);
1120 return NULL;
1121 }
1122 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1123 avio_write(dyn_buf, buf, ret);
1124 avio_w8(dyn_buf, 0);
1125 avio_closep(&pb);
1126
1127 ret = avio_close_dyn_buf(dyn_buf, &str);
1128 if (ret < 0)
1129 return NULL;
1130 return str;
1131 }
1132
1133 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1134 OutputStream *ost)
1135 {
1136 AVStream *st = ost->st;
1137 char *filter = NULL, *filter_script = NULL;
1138
1139 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1140 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1141
1142 if (filter_script && filter) {
1143 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1144 "output stream #%d:%d.\n", nb_output_files, st->index);
1145 exit_program(1);
1146 }
1147
1148 if (filter_script)
1149 return read_file(filter_script);
1150 else if (filter)
1151 return av_strdup(filter);
1152
1153 return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
1154 "null" : "anull");
1155 }
1156
1157 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
1158 {
1159 AVStream *st;
1160 OutputStream *ost;
1161 AVCodecContext *video_enc;
1162 char *frame_aspect_ratio = NULL;
1163
1164 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
1165 st = ost->st;
1166 video_enc = ost->enc_ctx;
1167
1168 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1169 if (frame_aspect_ratio)
1170 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
1171
1172 if (!ost->stream_copy) {
1173 const char *p = NULL;
1174 char *frame_rate = NULL, *frame_size = NULL;
1175 char *frame_pix_fmt = NULL;
1176 char *intra_matrix = NULL, *inter_matrix = NULL;
1177 int do_pass = 0;
1178 int i;
1179
1180 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1181 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1182 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1183 exit_program(1);
1184 }
1185
1186 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1187 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1188 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1189 exit_program(1);
1190 }
1191
1192 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1193 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1194 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1195 exit_program(1);
1196 }
1197 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1198
1199 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1200 if (intra_matrix) {
1201 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1202 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1203 exit_program(1);
1204 }
1205 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1206 }
1207 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1208 if (inter_matrix) {
1209 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1210 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1211 exit_program(1);
1212 }
1213 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1214 }
1215
1216 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1217 for (i = 0; p; i++) {
1218 int start, end, q;
1219 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1220 if (e != 3) {
1221 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1222 exit_program(1);
1223 }
1224 video_enc->rc_override =
1225 av_realloc(video_enc->rc_override,
1226 sizeof(RcOverride) * (i + 1));
1227 if (!video_enc->rc_override) {
1228 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
1229 exit_program(1);
1230 }
1231 video_enc->rc_override[i].start_frame = start;
1232 video_enc->rc_override[i].end_frame = end;
1233 if (q > 0) {
1234 video_enc->rc_override[i].qscale = q;
1235 video_enc->rc_override[i].quality_factor = 1.0;
1236 }
1237 else {
1238 video_enc->rc_override[i].qscale = 0;
1239 video_enc->rc_override[i].quality_factor = -q/100.0;
1240 }
1241 p = strchr(p, '/');
1242 if (p) p++;
1243 }
1244 video_enc->rc_override_count = i;
1245 video_enc->intra_dc_precision = intra_dc_precision - 8;
1246
1247 /* two pass mode */
1248 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1249 if (do_pass) {
1250 if (do_pass == 1) {
1251 video_enc->flags |= AV_CODEC_FLAG_PASS1;
1252 } else {
1253 video_enc->flags |= AV_CODEC_FLAG_PASS2;
1254 }
1255 }
1256
1257 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1258 if (ost->logfile_prefix &&
1259 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1260 exit_program(1);
1261
1262 if (do_pass) {
1263 char logfilename[1024];
1264 FILE *f;
1265
1266 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1267 ost->logfile_prefix ? ost->logfile_prefix :
1268 DEFAULT_PASS_LOGFILENAME_PREFIX,
1269 i);
1270 if (!strcmp(ost->enc->name, "libx264")) {
1271 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1272 } else {
1273 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
1274 f = fopen(logfilename, "wb");
1275 if (!f) {
1276 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1277 logfilename, strerror(errno));
1278 exit_program(1);
1279 }
1280 ost->logfile = f;
1281 } else {
1282 char *logbuffer = read_file(logfilename);
1283
1284 if (!logbuffer) {
1285 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1286 logfilename);
1287 exit_program(1);
1288 }
1289 video_enc->stats_in = logbuffer;
1290 }
1291 }
1292 }
1293
1294 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1295 if (ost->forced_keyframes)
1296 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1297
1298 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1299
1300 ost->top_field_first = -1;
1301 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1302
1303
1304 ost->avfilter = get_ost_filters(o, oc, ost);
1305 if (!ost->avfilter)
1306 exit_program(1);
1307 } else {
1308 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1309 }
1310
1311 return ost;
1312 }
1313
1314 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
1315 {
1316 AVStream *st;
1317 OutputStream *ost;
1318 AVCodecContext *audio_enc;
1319
1320 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
1321 st = ost->st;
1322
1323 audio_enc = ost->enc_ctx;
1324 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1325
1326 if (!ost->stream_copy) {
1327 char *sample_fmt = NULL;
1328
1329 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1330
1331 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1332 if (sample_fmt &&
1333 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1334 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1335 exit_program(1);
1336 }
1337
1338 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1339
1340 ost->avfilter = get_ost_filters(o, oc, ost);
1341 if (!ost->avfilter)
1342 exit_program(1);
1343 }
1344
1345 return ost;
1346 }
1347
1348 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1349 {
1350 OutputStream *ost;
1351
1352 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1353 if (!ost->stream_copy) {
1354 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1355 exit_program(1);
1356 }
1357
1358 return ost;
1359 }
1360
1361 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1362 {
1363 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1364 ost->stream_copy = 1;
1365 ost->finished = 1;
1366 return ost;
1367 }
1368
1369 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1370 {
1371 OutputStream *ost;
1372 AVCodecContext *subtitle_enc;
1373
1374 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1375 subtitle_enc = ost->enc_ctx;
1376
1377 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1378
1379 return ost;
1380 }
1381
1382 /* arg format is "output-stream-index:streamid-value". */
1383 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1384 {
1385 OptionsContext *o = optctx;
1386 int idx;
1387 char *p;
1388 char idx_str[16];
1389
1390 av_strlcpy(idx_str, arg, sizeof(idx_str));
1391 p = strchr(idx_str, ':');
1392 if (!p) {
1393 av_log(NULL, AV_LOG_FATAL,
1394 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1395 arg, opt);
1396 exit_program(1);
1397 }
1398 *p++ = '\0';
1399 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1400 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1401 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1402 return 0;
1403 }
1404
1405 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1406 {
1407 AVFormatContext *is = ifile->ctx;
1408 AVFormatContext *os = ofile->ctx;
1409 AVChapter **tmp;
1410 int i;
1411
1412 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1413 if (!tmp)
1414 return AVERROR(ENOMEM);
1415 os->chapters = tmp;
1416
1417 for (i = 0; i < is->nb_chapters; i++) {
1418 AVChapter *in_ch = is->chapters[i], *out_ch;
1419 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1420 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1421 AV_TIME_BASE_Q, in_ch->time_base);
1422 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1423 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1424
1425
1426 if (in_ch->end < ts_off)
1427 continue;
1428 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1429 break;
1430
1431 out_ch = av_mallocz(sizeof(AVChapter));
1432 if (!out_ch)
1433 return AVERROR(ENOMEM);
1434
1435 out_ch->id = in_ch->id;
1436 out_ch->time_base = in_ch->time_base;
1437 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1438 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1439
1440 if (copy_metadata)
1441 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1442
1443 os->chapters[os->nb_chapters++] = out_ch;
1444 }
1445 return 0;
1446 }
1447
1448 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1449 AVFormatContext *oc)
1450 {
1451 OutputStream *ost;
1452
1453 switch (ofilter->type) {
1454 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1455 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1456 default:
1457 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1458 "currently.\n");
1459 exit_program(1);
1460 }
1461
1462 ost->source_index = -1;
1463 ost->filter = ofilter;
1464
1465 ofilter->ost = ost;
1466 ofilter->format = -1;
1467
1468 if (ost->stream_copy) {
1469 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1470 "which is fed from a complex filtergraph. Filtering and streamcopy "
1471 "cannot be used together.\n", ost->file_index, ost->index);
1472 exit_program(1);
1473 }
1474
1475 avfilter_inout_free(&ofilter->out_tmp);
1476 }
1477
1478 static int init_complex_filters(void)
1479 {
1480 int i, ret = 0;
1481
1482 for (i = 0; i < nb_filtergraphs; i++) {
1483 ret = init_complex_filtergraph(filtergraphs[i]);
1484 if (ret < 0)
1485 return ret;
1486 }
1487 return 0;
1488 }
1489
1490 static int open_output_file(OptionsContext *o, const char *filename)
1491 {
1492 AVFormatContext *oc;
1493 int i, j, err;
1494 AVOutputFormat *file_oformat;
1495 OutputFile *of;
1496 OutputStream *ost;
1497 InputStream *ist;
1498 AVDictionary *unused_opts = NULL;
1499 AVDictionaryEntry *e = NULL;
1500
1501 GROW_ARRAY(output_files, nb_output_files);
1502 of = av_mallocz(sizeof(*of));
1503 if (!of)
1504 exit_program(1);
1505 output_files[nb_output_files - 1] = of;
1506
1507 of->ost_index = nb_output_streams;
1508 of->recording_time = o->recording_time;
1509 of->start_time = o->start_time;
1510 of->limit_filesize = o->limit_filesize;
1511 of->shortest = o->shortest;
1512 av_dict_copy(&of->opts, o->g->format_opts, 0);
1513
1514 if (!strcmp(filename, "-"))
1515 filename = "pipe:";
1516
1517 oc = avformat_alloc_context();
1518 if (!oc) {
1519 print_error(filename, AVERROR(ENOMEM));
1520 exit_program(1);
1521 }
1522 of->ctx = oc;
1523 if (o->recording_time != INT64_MAX)
1524 oc->duration = o->recording_time;
1525
1526 if (o->format) {
1527 file_oformat = av_guess_format(o->format, NULL, NULL);
1528 if (!file_oformat) {
1529 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1530 exit_program(1);
1531 }
1532 } else {
1533 file_oformat = av_guess_format(NULL, filename, NULL);
1534 if (!file_oformat) {
1535 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1536 filename);
1537 exit_program(1);
1538 }
1539 }
1540
1541 oc->oformat = file_oformat;
1542 oc->interrupt_callback = int_cb;
1543 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1544
1545 /* create streams for all unlabeled output pads */
1546 for (i = 0; i < nb_filtergraphs; i++) {
1547 FilterGraph *fg = filtergraphs[i];
1548 for (j = 0; j < fg->nb_outputs; j++) {
1549 OutputFilter *ofilter = fg->outputs[j];
1550
1551 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1552 continue;
1553
1554 switch (ofilter->type) {
1555 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1556 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1557 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1558 }
1559 init_output_filter(ofilter, o, oc);
1560 }
1561 }
1562
1563 if (!o->nb_stream_maps) {
1564 /* pick the "best" stream of each type */
1565 #define NEW_STREAM(type, index)\
1566 if (index >= 0) {\
1567 ost = new_ ## type ## _stream(o, oc);\
1568 ost->source_index = index;\
1569 ost->sync_ist = input_streams[index];\
1570 input_streams[index]->discard = 0;\
1571 input_streams[index]->st->discard = AVDISCARD_NONE;\
1572 }
1573
1574 /* video: highest resolution */
1575 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1576 int area = 0, idx = -1;
1577 for (i = 0; i < nb_input_streams; i++) {
1578 ist = input_streams[i];
1579 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1580 ist->st->codecpar->width * ist->st->codecpar->height > area) {
1581 area = ist->st->codecpar->width * ist->st->codecpar->height;
1582 idx = i;
1583 }
1584 }
1585 NEW_STREAM(video, idx);
1586 }
1587
1588 /* audio: most channels */
1589 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1590 int channels = 0, idx = -1;
1591 for (i = 0; i < nb_input_streams; i++) {
1592 ist = input_streams[i];
1593 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1594 ist->st->codecpar->channels > channels) {
1595 channels = ist->st->codecpar->channels;
1596 idx = i;
1597 }
1598 }
1599 NEW_STREAM(audio, idx);
1600 }
1601
1602 /* subtitles: pick first */
1603 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1604 for (i = 0; i < nb_input_streams; i++)
1605 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1606 NEW_STREAM(subtitle, i);
1607 break;
1608 }
1609 }
1610 /* do something with data? */
1611 } else {
1612 for (i = 0; i < o->nb_stream_maps; i++) {
1613 StreamMap *map = &o->stream_maps[i];
1614
1615 if (map->disabled)
1616 continue;
1617
1618 if (map->linklabel) {
1619 FilterGraph *fg;
1620 OutputFilter *ofilter = NULL;
1621 int j, k;
1622
1623 for (j = 0; j < nb_filtergraphs; j++) {
1624 fg = filtergraphs[j];
1625 for (k = 0; k < fg->nb_outputs; k++) {
1626 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1627 if (out && !strcmp(out->name, map->linklabel)) {
1628 ofilter = fg->outputs[k];
1629 goto loop_end;
1630 }
1631 }
1632 }
1633 loop_end:
1634 if (!ofilter) {
1635 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1636 "in any defined filter graph.\n", map->linklabel);
1637 exit_program(1);
1638 }
1639 init_output_filter(ofilter, o, oc);
1640 } else {
1641 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1642 switch (ist->st->codecpar->codec_type) {
1643 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1644 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1645 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1646 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1647 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1648 default:
1649 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1650 map->file_index, map->stream_index);
1651 exit_program(1);
1652 }
1653
1654 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1655 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1656 map->sync_stream_index];
1657 ist->discard = 0;
1658 ist->st->discard = AVDISCARD_NONE;
1659 }
1660 }
1661 }
1662
1663 /* handle attached files */
1664 for (i = 0; i < o->nb_attachments; i++) {
1665 AVIOContext *pb;
1666 uint8_t *attachment;
1667 const char *p;
1668 int64_t len;
1669
1670 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1671 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1672 o->attachments[i]);
1673 exit_program(1);
1674 }
1675 if ((len = avio_size(pb)) <= 0) {
1676 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1677 o->attachments[i]);
1678 exit_program(1);
1679 }
1680 if (!(attachment = av_malloc(len))) {
1681 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1682 o->attachments[i]);
1683 exit_program(1);
1684 }
1685 avio_read(pb, attachment, len);
1686
1687 ost = new_attachment_stream(o, oc);
1688 ost->stream_copy = 0;
1689 ost->source_index = -1;
1690 ost->attachment_filename = o->attachments[i];
1691 ost->st->codecpar->extradata = attachment;
1692 ost->st->codecpar->extradata_size = len;
1693
1694 p = strrchr(o->attachments[i], '/');
1695 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1696 avio_close(pb);
1697 }
1698
1699 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1700 av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
1701 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
1702 exit_program(1);
1703 }
1704
1705 /* check if all codec options have been used */
1706 unused_opts = strip_specifiers(o->g->codec_opts);
1707 for (i = of->ost_index; i < nb_output_streams; i++) {
1708 e = NULL;
1709 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
1710 AV_DICT_IGNORE_SUFFIX)))
1711 av_dict_set(&unused_opts, e->key, NULL, 0);
1712 }
1713
1714 e = NULL;
1715 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1716 const AVClass *class = avcodec_get_class();
1717 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1718 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1719 if (!option)
1720 continue;
1721 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1722 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1723 "output file #%d (%s) is not an encoding option.\n", e->key,
1724 option->help ? option->help : "", nb_output_files - 1,
1725 filename);
1726 exit_program(1);
1727 }
1728
1729 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1730 "output file #%d (%s) has not been used for any stream. The most "
1731 "likely reason is either wrong type (e.g. a video option with "
1732 "no video streams) or that it is a private option of some encoder "
1733 "which was not actually used for any stream.\n", e->key,
1734 option->help ? option->help : "", nb_output_files - 1, filename);
1735 }
1736 av_dict_free(&unused_opts);
1737
1738 /* set the decoding_needed flags and create simple filtergraphs */
1739 for (i = of->ost_index; i < nb_output_streams; i++) {
1740 OutputStream *ost = output_streams[i];
1741
1742 if (ost->encoding_needed && ost->source_index >= 0) {
1743 InputStream *ist = input_streams[ost->source_index];
1744 ist->decoding_needed = 1;
1745
1746 if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
1747 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1748 err = init_simple_filtergraph(ist, ost);
1749 if (err < 0) {
1750 av_log(NULL, AV_LOG_ERROR,
1751 "Error initializing a simple filtergraph between streams "
1752 "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
1753 nb_output_files - 1, ost->st->index);
1754 exit_program(1);
1755 }
1756 }
1757 }
1758
1759 /*
1760 * We want CFR output if and only if one of those is true:
1761 * 1) user specified output framerate with -r
1762 * 2) user specified -vsync cfr
1763 * 3) output format is CFR and the user didn't force vsync to
1764 * something else than CFR
1765 *
1766 * in such a case, set ost->frame_rate
1767 */
1768 if (ost->encoding_needed && ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1769 int format_cfr = !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS));
1770 int need_cfr = !!ost->frame_rate.num;
1771
1772 if (video_sync_method == VSYNC_CFR ||
1773 (video_sync_method == VSYNC_AUTO && format_cfr))
1774 need_cfr = 1;
1775
1776 if (need_cfr && !ost->frame_rate.num) {
1777 InputStream *ist = ost->source_index >= 0 ? input_streams[ost->source_index] : NULL;
1778
1779 if (ist && ist->framerate.num)
1780 ost->frame_rate = ist->framerate;
1781 else if (ist && ist->st->avg_frame_rate.num)
1782 ost->frame_rate = ist->st->avg_frame_rate;
1783 else {
1784 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1785 "for the output stream #%d:%d, but no information "
1786 "about the input framerate is available. Falling "
1787 "back to a default value of 25fps. Use the -r option "
1788 "if you want a different framerate.\n",
1789 ost->file_index, ost->index);
1790 ost->frame_rate = (AVRational){ 25, 1 };
1791 }
1792 }
1793
1794 if (need_cfr && ost->enc->supported_framerates && !ost->force_fps) {
1795 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1796 ost->frame_rate = ost->enc->supported_framerates[idx];
1797 }
1798 }
1799
1800 /* set the filter output constraints */
1801 if (ost->filter) {
1802 OutputFilter *f = ost->filter;
1803 int count;
1804 switch (ost->enc_ctx->codec_type) {
1805 case AVMEDIA_TYPE_VIDEO:
1806 f->frame_rate = ost->frame_rate;
1807 f->width = ost->enc_ctx->width;
1808 f->height = ost->enc_ctx->height;
1809 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
1810 f->format = ost->enc_ctx->pix_fmt;
1811 } else if (ost->enc->pix_fmts) {
1812 count = 0;
1813 while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
1814 count++;
1815 f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
1816 if (!f->formats)
1817 exit_program(1);
1818 memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
1819 }
1820 break;
1821 case AVMEDIA_TYPE_AUDIO:
1822 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
1823 f->format = ost->enc_ctx->sample_fmt;
1824 } else if (ost->enc->sample_fmts) {
1825 count = 0;
1826 while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
1827 count++;
1828 f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
1829 if (!f->formats)
1830 exit_program(1);
1831 memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
1832 }
1833 if (ost->enc_ctx->sample_rate) {
1834 f->sample_rate = ost->enc_ctx->sample_rate;
1835 } else if (ost->enc->supported_samplerates) {
1836 count = 0;
1837 while (ost->enc->supported_samplerates[count])
1838 count++;
1839 f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
1840 if (!f->sample_rates)
1841 exit_program(1);
1842 memcpy(f->sample_rates, ost->enc->supported_samplerates,
1843 (count + 1) * sizeof(*f->sample_rates));
1844 }
1845 if (ost->enc_ctx->channels) {
1846 f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
1847 } else if (ost->enc->channel_layouts) {
1848 count = 0;
1849 while (ost->enc->channel_layouts[count])
1850 count++;
1851 f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
1852 if (!f->channel_layouts)
1853 exit_program(1);
1854 memcpy(f->channel_layouts, ost->enc->channel_layouts,
1855 (count + 1) * sizeof(*f->channel_layouts));
1856 }
1857 break;
1858 }
1859 }
1860
1861 }
1862
1863 /* check filename in case of an image number is expected */
1864 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1865 if (!av_filename_number_test(oc->filename)) {
1866 print_error(oc->filename, AVERROR(EINVAL));
1867 exit_program(1);
1868 }
1869 }
1870
1871 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1872 /* test if it already exists to avoid losing precious files */
1873 assert_file_overwrite(filename);
1874
1875 /* open the file */
1876 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1877 &oc->interrupt_callback,
1878 &of->opts)) < 0) {
1879 print_error(filename, err);
1880 exit_program(1);
1881 }
1882 }
1883
1884 if (o->mux_preload) {
1885 uint8_t buf[64];
1886 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1887 av_dict_set(&of->opts, "preload", buf, 0);
1888 }
1889 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1890 oc->flags |= AVFMT_FLAG_NONBLOCK;
1891
1892 /* copy metadata */
1893 for (i = 0; i < o->nb_metadata_map; i++) {
1894 char *p;
1895 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1896
1897 if (in_file_index >= nb_input_files) {
1898 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1899 exit_program(1);
1900 }
1901 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1902 in_file_index >= 0 ?
1903 input_files[in_file_index]->ctx : NULL, o);
1904 }
1905
1906 /* copy chapters */
1907 if (o->chapters_input_file >= nb_input_files) {
1908 if (o->chapters_input_file == INT_MAX) {
1909 /* copy chapters from the first input file that has them*/
1910 o->chapters_input_file = -1;
1911 for (i = 0; i < nb_input_files; i++)
1912 if (input_files[i]->ctx->nb_chapters) {
1913 o->chapters_input_file = i;
1914 break;
1915 }
1916 } else {
1917 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1918 o->chapters_input_file);
1919 exit_program(1);
1920 }
1921 }
1922 if (o->chapters_input_file >= 0)
1923 copy_chapters(input_files[o->chapters_input_file], of,
1924 !o->metadata_chapters_manual);
1925
1926 /* copy global metadata by default */
1927 if (!o->metadata_global_manual && nb_input_files)
1928 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1929 AV_DICT_DONT_OVERWRITE);
1930 if (!o->metadata_streams_manual)
1931 for (i = of->ost_index; i < nb_output_streams; i++) {
1932 InputStream *ist;
1933 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1934 continue;
1935 ist = input_streams[output_streams[i]->source_index];
1936 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1937 }
1938
1939 /* process manually set metadata */
1940 for (i = 0; i < o->nb_metadata; i++) {
1941 AVDictionary **m;
1942 char type, *val;
1943 const char *stream_spec;
1944 int index = 0, j, ret;
1945
1946 val = strchr(o->metadata[i].u.str, '=');
1947 if (!val) {
1948 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1949 o->metadata[i].u.str);
1950 exit_program(1);
1951 }
1952 *val++ = 0;
1953
1954 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1955 if (type == 's') {
1956 for (j = 0; j < oc->nb_streams; j++) {
1957 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1958 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1959 } else if (ret < 0)
1960 exit_program(1);
1961 }
1962 }
1963 else {
1964 switch (type) {
1965 case 'g':
1966 m = &oc->metadata;
1967 break;
1968 case 'c':
1969 if (index < 0 || index >= oc->nb_chapters) {
1970 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
1971 exit_program(1);
1972 }
1973 m = &oc->chapters[index]->metadata;
1974 break;
1975 default:
1976 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
1977 exit_program(1);
1978 }
1979 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
1980 }
1981 }
1982
1983 return 0;
1984 }
1985
1986 static int opt_target(void *optctx, const char *opt, const char *arg)
1987 {
1988 OptionsContext *o = optctx;
1989 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
1990 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
1991
1992 if (!strncmp(arg, "pal-", 4)) {
1993 norm = PAL;
1994 arg += 4;
1995 } else if (!strncmp(arg, "ntsc-", 5)) {
1996 norm = NTSC;
1997 arg += 5;
1998 } else if (!strncmp(arg, "film-", 5)) {
1999 norm = FILM;
2000 arg += 5;
2001 } else {
2002 /* Try to determine PAL/NTSC by peeking in the input files */
2003 if (nb_input_files) {
2004 int i, j, fr;
2005 for (j = 0; j < nb_input_files; j++) {
2006 for (i = 0; i < input_files[j]->nb_streams; i++) {
2007 AVStream *st = input_files[j]->ctx->streams[i];
2008 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
2009 continue;
2010 fr = st->time_base.den * 1000 / st->time_base.num;
2011 if (fr == 25000) {
2012 norm = PAL;
2013 break;
2014 } else if ((fr == 29970) || (fr == 23976)) {
2015 norm = NTSC;
2016 break;
2017 }
2018 }
2019 if (norm != UNKNOWN)
2020 break;
2021 }
2022 }
2023 if (norm != UNKNOWN)
2024 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2025 }
2026
2027 if (norm == UNKNOWN) {
2028 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2029 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2030 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2031 exit_program(1);
2032 }
2033
2034 if (!strcmp(arg, "vcd")) {
2035 opt_video_codec(o, "c:v", "mpeg1video");
2036 opt_audio_codec(o, "c:a", "mp2");
2037 parse_option(o, "f", "vcd", options);
2038
2039 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2040 parse_option(o, "r", frame_rates[norm], options);
2041 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2042
2043 opt_default(NULL, "b", "1150000");
2044 opt_default(NULL, "maxrate", "1150000");
2045 opt_default(NULL, "minrate", "1150000");
2046 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
2047
2048 opt_default(NULL, "b:a", "224000");
2049 parse_option(o, "ar", "44100", options);
2050 parse_option(o, "ac", "2", options);
2051
2052 opt_default(NULL, "packetsize", "2324");
2053 opt_default(NULL, "muxrate", "3528"); // 2352 * 75 / 50;
2054
2055 /* We have to offset the PTS, so that it is consistent with the SCR.
2056 SCR starts at 36000, but the first two packs contain only padding
2057 and the first pack from the other stream, respectively, may also have
2058 been written before.
2059 So the real data starts at SCR 36000+3*1200. */
2060 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2061 } else if (!strcmp(arg, "svcd")) {
2062
2063 opt_video_codec(o, "c:v", "mpeg2video");
2064 opt_audio_codec(o, "c:a", "mp2");
2065 parse_option(o, "f", "svcd", options);
2066
2067 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2068 parse_option(o, "r", frame_rates[norm], options);
2069 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2070
2071 opt_default(NULL, "b", "2040000");
2072 opt_default(NULL, "maxrate", "2516000");
2073 opt_default(NULL, "minrate", "0"); // 1145000;
2074 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2075 opt_default(NULL, "scan_offset", "1");
2076
2077
2078 opt_default(NULL, "b:a", "224000");
2079 parse_option(o, "ar", "44100", options);
2080
2081 opt_default(NULL, "packetsize", "2324");
2082
2083 } else if (!strcmp(arg, "dvd")) {
2084
2085 opt_video_codec(o, "c:v", "mpeg2video");
2086 opt_audio_codec(o, "c:a", "ac3");
2087 parse_option(o, "f", "dvd", options);
2088
2089 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2090 parse_option(o, "r", frame_rates[norm], options);
2091 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2092
2093 opt_default(NULL, "b", "6000000");
2094 opt_default(NULL, "maxrate", "9000000");
2095 opt_default(NULL, "minrate", "0"); // 1500000;
2096 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2097
2098 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2099 opt_default(NULL, "muxrate", "25200"); // from mplex project: data_rate = 1260000. mux_rate = data_rate / 50
2100
2101 opt_default(NULL, "b:a", "448000");
2102 parse_option(o, "ar", "48000", options);
2103
2104 } else if (!strncmp(arg, "dv", 2)) {
2105
2106 parse_option(o, "f", "dv", options);
2107
2108 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2109 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2110 norm == PAL ? "yuv420p" : "yuv411p", options);
2111 parse_option(o, "r", frame_rates[norm], options);
2112
2113 parse_option(o, "ar", "48000", options);
2114 parse_option(o, "ac", "2", options);
2115
2116 } else {
2117 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2118 return AVERROR(EINVAL);
2119 }
2120
2121 av_dict_copy(&o->g->codec_opts, codec_opts, 0);
2122 av_dict_copy(&o->g->format_opts, format_opts, 0);
2123
2124 return 0;
2125 }
2126
2127 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2128 {
2129 av_free (vstats_filename);
2130 vstats_filename = av_strdup (arg);
2131 return 0;
2132 }
2133
2134 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2135 {
2136 char filename[40];
2137 time_t today2 = time(NULL);
2138 struct tm *today = localtime(&today2);
2139
2140 if (!today) { // maybe tomorrow
2141 av_log(NULL, AV_LOG_FATAL, "Unable to get current time.\n");
2142 exit_program(1);
2143 }
2144
2145 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2146 today->tm_sec);
2147 return opt_vstats_file(NULL, opt, filename);
2148 }
2149
2150 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2151 {
2152 OptionsContext *o = optctx;
2153 return parse_option(o, "frames:v", arg, options);
2154 }
2155
2156 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2157 {
2158 OptionsContext *o = optctx;
2159 return parse_option(o, "frames:a", arg, options);
2160 }
2161
2162 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2163 {
2164 OptionsContext *o = optctx;
2165 return parse_option(o, "frames:d", arg, options);
2166 }
2167
2168 static int opt_video_tag(void *optctx, const char *opt, const char *arg)
2169 {
2170 OptionsContext *o = optctx;
2171 return parse_option(o, "tag:v", arg, options);
2172 }
2173
2174 static int opt_audio_tag(void *optctx, const char *opt, const char *arg)
2175 {
2176 OptionsContext *o = optctx;
2177 return parse_option(o, "tag:a", arg, options);
2178 }
2179
2180 static int opt_subtitle_tag(void *optctx, const char *opt, const char *arg)
2181 {
2182 OptionsContext *o = optctx;
2183 return parse_option(o, "tag:s", arg, options);
2184 }
2185
2186 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2187 {
2188 OptionsContext *o = optctx;
2189 return parse_option(o, "filter:v", arg, options);
2190 }
2191
2192 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2193 {
2194 OptionsContext *o = optctx;
2195 return parse_option(o, "filter:a", arg, options);
2196 }
2197
2198 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2199 {
2200 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2201 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2202 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2203
2204 if (video_sync_method == VSYNC_AUTO)
2205 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2206 return 0;
2207 }
2208
2209 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2210 {
2211 OptionsContext *o = optctx;
2212 char layout_str[32];
2213 char *stream_str;
2214 char *ac_str;
2215 int ret, channels, ac_str_size;
2216 uint64_t layout;
2217
2218 layout = av_get_channel_layout(arg);
2219 if (!layout) {
2220 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2221 return AVERROR(EINVAL);
2222 }
2223 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2224 ret = opt_default(NULL, opt, layout_str);
2225 if (ret < 0)
2226 return ret;
2227
2228 /* set 'ac' option based on channel layout */
2229 channels = av_get_channel_layout_nb_channels(layout);
2230 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2231 stream_str = strchr(opt, ':');
2232 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2233 ac_str = av_mallocz(ac_str_size);
2234 if (!ac_str)
2235 return AVERROR(ENOMEM);
2236 av_strlcpy(ac_str, "ac", 3);
2237 if (stream_str)
2238 av_strlcat(ac_str, stream_str, ac_str_size);
2239 ret = parse_option(o, ac_str, layout_str, options);
2240 av_free(ac_str);
2241
2242 return ret;
2243 }
2244
2245 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2246 {
2247 OptionsContext *o = optctx;
2248 return parse_option(o, "q:a", arg, options);
2249 }
2250
2251 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2252 {
2253 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2254 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2255 return AVERROR(ENOMEM);
2256 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2257 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2258 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2259 return AVERROR(ENOMEM);
2260 return 0;
2261 }
2262
2263 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2264 {
2265 uint8_t *graph_desc = read_file(arg);
2266 if (!graph_desc)
2267 return AVERROR(EINVAL);
2268
2269 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2270 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2271 return AVERROR(ENOMEM);
2272 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2273 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2274 return 0;
2275 }
2276
2277 void show_help_default(const char *opt, const char *arg)
2278 {
2279 /* per-file options have at least one of those set */
2280 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2281 int show_advanced = 0, show_avoptions = 0;
2282
2283 if (opt && *opt) {
2284 if (!strcmp(opt, "long"))
2285 show_advanced = 1;
2286 else if (!strcmp(opt, "full"))
2287 show_advanced = show_avoptions = 1;
2288 else
2289 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2290 }
2291
2292 show_usage();
2293
2294 printf("Getting help:\n"
2295 " -h -- print basic options\n"
2296 " -h long -- print more options\n"
2297 " -h full -- print all options (including all format and codec specific options, very long)\n"
2298 " -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
2299 " See man %s for detailed description of the options.\n"
2300 "\n", program_name);
2301
2302 show_help_options(options, "Print help / information / capabilities:",
2303 OPT_EXIT, 0, 0);
2304
2305 show_help_options(options, "Global options (affect whole program "
2306 "instead of just one file:",
2307 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2308 if (show_advanced)
2309 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2310 per_file | OPT_EXIT, 0);
2311
2312 show_help_options(options, "Per-file main options:", 0,
2313 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2314 OPT_EXIT, per_file);
2315 if (show_advanced)
2316 show_help_options(options, "Advanced per-file options:",
2317 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2318
2319 show_help_options(options, "Video options:",
2320 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2321 if (show_advanced)
2322 show_help_options(options, "Advanced Video options:",
2323 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2324
2325 show_help_options(options, "Audio options:",
2326 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2327 if (show_advanced)
2328 show_help_options(options, "Advanced Audio options:",
2329 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2330 show_help_options(options, "Subtitle options:",
2331 OPT_SUBTITLE, 0, 0);
2332 printf("\n");
2333
2334 if (show_avoptions) {
2335 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2336 show_help_children(avcodec_get_class(), flags);
2337 show_help_children(avformat_get_class(), flags);
2338 show_help_children(sws_get_class(), flags);
2339 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM);
2340 }
2341 }
2342
2343 void show_usage(void)
2344 {
2345 printf("Hyper fast Audio and Video encoder\n");
2346 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2347 printf("\n");
2348 }
2349
2350 enum OptGroup {
2351 GROUP_OUTFILE,
2352 GROUP_INFILE,
2353 };
2354
2355 static const OptionGroupDef groups[] = {
2356 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2357 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2358 };
2359
2360 static int open_files(OptionGroupList *l, const char *inout,
2361 int (*open_file)(OptionsContext*, const char*))
2362 {
2363 int i, ret;
2364
2365 for (i = 0; i < l->nb_groups; i++) {
2366 OptionGroup *g = &l->groups[i];
2367 OptionsContext o;
2368
2369 init_options(&o);
2370 o.g = g;
2371
2372 ret = parse_optgroup(&o, g);
2373 if (ret < 0) {
2374 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2375 "%s.\n", inout, g->arg);
2376 return ret;
2377 }
2378
2379 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2380 ret = open_file(&o, g->arg);
2381 uninit_options(&o);
2382 if (ret < 0) {
2383 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2384 inout, g->arg);
2385 return ret;
2386 }
2387 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2388 }
2389
2390 return 0;
2391 }
2392
2393 int avconv_parse_options(int argc, char **argv)
2394 {
2395 OptionParseContext octx;
2396 uint8_t error[128];
2397 int ret;
2398
2399 memset(&octx, 0, sizeof(octx));
2400
2401 /* split the commandline into an internal representation */
2402 ret = split_commandline(&octx, argc, argv, options, groups,
2403 FF_ARRAY_ELEMS(groups));
2404 if (ret < 0) {
2405 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2406 goto fail;
2407 }
2408
2409 /* apply global options */
2410 ret = parse_optgroup(NULL, &octx.global_opts);
2411 if (ret < 0) {
2412 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2413 goto fail;
2414 }
2415
2416 /* open input files */
2417 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2418 if (ret < 0) {
2419 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2420 goto fail;
2421 }
2422
2423 /* create the complex filtergraphs */
2424 ret = init_complex_filters();
2425 if (ret < 0) {
2426 av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
2427 goto fail;
2428 }
2429
2430 /* open output files */
2431 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2432 if (ret < 0) {
2433 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2434 goto fail;
2435 }
2436
2437 fail:
2438 uninit_parse_context(&octx);
2439 if (ret < 0) {
2440 av_strerror(ret, error, sizeof(error));
2441 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2442 }
2443 return ret;
2444 }
2445
2446 #define OFFSET(x) offsetof(OptionsContext, x)
2447 const OptionDef options[] = {
2448 /* main options */
2449 #include "cmdutils_common_opts.h"
2450 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2451 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2452 "force format", "fmt" },
2453 { "y", OPT_BOOL, { &file_overwrite },
2454 "overwrite output files" },
2455 { "n", OPT_BOOL, { &file_skip },
2456 "never overwrite output files" },
2457 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2458 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2459 "codec name", "codec" },
2460 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2461 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2462 "codec name", "codec" },
2463 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2464 OPT_OUTPUT, { .off = OFFSET(presets) },
2465 "preset name", "preset" },
2466 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2467 OPT_OUTPUT, { .func_arg = opt_map },
2468 "set input stream mapping",
2469 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2470 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2471 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2472 "set metadata information of outfile from infile",
2473 "outfile[,metadata]:infile[,metadata]" },
2474 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2475 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2476 "set chapters mapping", "input_file_index" },
2477 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2478 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2479 "record or transcode \"duration\" seconds of audio/video",
2480 "duration" },
2481 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2482 "set the limit file size in bytes", "limit_size" },
2483 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2484 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2485 "set the start time offset", "time_off" },
2486 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2487 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2488 "enable/disable accurate seeking with -ss" },
2489 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2490 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2491 "set the input ts offset", "time_off" },
2492 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2493 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2494 "set the input ts scale", "scale" },
2495 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2496 "add metadata", "string=string" },
2497 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2498 OPT_OUTPUT, { .func_arg = opt_data_frames },
2499 "set the number of data frames to record", "number" },
2500 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2501 "add timings for benchmarking" },
2502 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2503 "set max runtime in seconds", "limit" },
2504 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2505 "dump each input packet" },
2506 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2507 "when dumping packets, also dump the payload" },
2508 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2509 OPT_INPUT, { .off = OFFSET(rate_emu) },
2510 "read input at native frame rate", "" },
2511 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2512 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2513 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2514 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2515 "video sync method", "" },
2516 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2517 "audio sync method", "" },
2518 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2519 "audio drift threshold", "threshold" },
2520 { "copyts", OPT_BOOL | OPT_EXPERT, { &copy_ts },
2521 "copy timestamps" },
2522 { "copytb", OPT_BOOL | OPT_EXPERT, { &copy_tb },
2523 "copy input stream time base when stream copying" },
2524 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2525 OPT_OUTPUT, { .off = OFFSET(shortest) },
2526 "finish encoding within shortest input" },
2527 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2528 "timestamp discontinuity delta threshold", "threshold" },
2529 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2530 "exit on error", "error" },
2531 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2532 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2533 "copy initial non-keyframes" },
2534 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2535 "set the number of frames to record", "number" },
2536 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2537 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2538 "force codec tag/fourcc", "fourcc/tag" },
2539 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2540 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2541 "use fixed quality scale (VBR)", "q" },
2542 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2543 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2544 "use fixed quality scale (VBR)", "q" },
2545 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2546 "set stream filterchain", "filter_list" },
2547 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2548 "read stream filtergraph description from a file", "filename" },
2549 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2550 "create a complex filtergraph", "graph_description" },
2551 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2552 "read complex filtergraph description from a file", "filename" },
2553 { "stats", OPT_BOOL, { &print_stats },
2554 "print progress report during encoding", },
2555 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2556 OPT_OUTPUT, { .func_arg = opt_attach },
2557 "add an attachment to the output file", "filename" },
2558 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2559 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2560 "extract an attachment into a file", "filename" },
2561 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
2562 OPT_OFFSET, { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
2563
2564 /* video options */
2565 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2566 "set the number of video frames to record", "number" },
2567 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2568 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2569 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2570 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2571 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2572 "set frame size (WxH or abbreviation)", "size" },
2573 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2574 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2575 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2576 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2577 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2578 "set pixel format", "format" },
2579 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(video_disable) },
2580 "disable video" },
2581 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2582 "discard threshold", "n" },
2583 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2584 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2585 "rate control override for specific intervals", "override" },
2586 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2587 OPT_OUTPUT, { .func_arg = opt_video_codec },
2588 "force video codec ('copy' to copy stream)", "codec" },
2589 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2590 "select the pass number (1 or 2)", "n" },
2591 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2592 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2593 "select two pass log file name prefix", "prefix" },
2594 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2595 "dump video coding statistics to file" },
2596 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2597 "dump video coding statistics to file", "file" },
2598 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2599 "video filters", "filter list" },
2600 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2601 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2602 "specify intra matrix coeffs", "matrix" },
2603 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2604 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2605 "specify inter matrix coeffs", "matrix" },
2606 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2607 OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2608 "top=1/bottom=0/auto=-1 field first", "" },
2609 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2610 "intra_dc_precision", "precision" },
2611 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2612 OPT_OUTPUT, { .func_arg = opt_video_tag },
2613 "force video tag/fourcc", "fourcc/tag" },
2614 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2615 "show QP histogram" },
2616 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2617 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2618 "force the selected framerate, disable the best supported framerate selection" },
2619 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2620 OPT_OUTPUT, { .func_arg = opt_streamid },
2621 "set the value of an outfile streamid", "streamIndex:value" },
2622 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2623 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2624 "force key frames at specified timestamps", "timestamps" },
2625 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2626 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2627 "use HW accelerated decoding", "hwaccel name" },
2628 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2629 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2630 "select a device for HW acceleration", "devicename" },
2631 { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2632 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_output_formats) },
2633 "select output format used with HW accelerated decoding", "format" },
2634
2635 { "hwaccels", OPT_EXIT, { .func_arg = show_hwaccels },
2636 "show available HW acceleration methods" },
2637 { "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC |
2638 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) },
2639 "automatically insert correct rotate filters" },
2640 { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT, { &hwaccel_lax_profile_check},
2641 "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
2642
2643 /* audio options */
2644 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2645 "set the number of audio frames to record", "number" },
2646 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2647 "set audio quality (codec-specific)", "quality", },
2648 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2649 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2650 "set audio sampling rate (in Hz)", "rate" },
2651 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2652 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2653 "set number of audio channels", "channels" },
2654 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(audio_disable) },
2655 "disable audio" },
2656 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2657 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2658 "force audio codec ('copy' to copy stream)", "codec" },
2659 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2660 OPT_OUTPUT, { .func_arg = opt_audio_tag },
2661 "force audio tag/fourcc", "fourcc/tag" },
2662 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2663 "change audio volume (256=normal)" , "volume" },
2664 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2665 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2666 "set sample format", "format" },
2667 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2668 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2669 "set channel layout", "layout" },
2670 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2671 "audio filters", "filter list" },
2672
2673 /* subtitle options */
2674 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2675 "disable subtitle" },
2676 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2677 "force subtitle codec ('copy' to copy stream)", "codec" },
2678 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_subtitle_tag }
2679 , "force subtitle tag/fourcc", "fourcc/tag" },
2680
2681 /* grab options */
2682 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2683
2684 /* muxer options */
2685 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2686 "set the maximum demux-decode delay", "seconds" },
2687 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2688 "set the initial demux-decode delay", "seconds" },
2689
2690 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2691 "A comma-separated list of bitstream filters", "bitstream_filters" },
2692
2693 { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
2694 "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
2695
2696 /* data codec support */
2697 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2698 "force data codec ('copy' to copy stream)", "codec" },
2699
2700 #if CONFIG_VAAPI
2701 { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
2702 "set VAAPI hardware device (DRM path or X11 display name)", "device" },
2703 #endif
2704
2705 { NULL, },
2706 };