aarch64: vp9mc: Calculate less unused data in the 4 pixel wide horizontal filter
[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; hwaccels[i].name; 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 int bitrate = 0;
956
957 if (!st) {
958 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
959 exit_program(1);
960 }
961
962 if (oc->nb_streams - 1 < o->nb_streamid_map)
963 st->id = o->streamid_map[oc->nb_streams - 1];
964
965 GROW_ARRAY(output_streams, nb_output_streams);
966 if (!(ost = av_mallocz(sizeof(*ost))))
967 exit_program(1);
968 output_streams[nb_output_streams - 1] = ost;
969
970 ost->file_index = nb_output_files - 1;
971 ost->index = idx;
972 ost->st = st;
973 st->codecpar->codec_type = type;
974
975 ret = choose_encoder(o, oc, ost);
976 if (ret < 0) {
977 av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
978 "%d:%d\n", ost->file_index, ost->index);
979 exit_program(1);
980 }
981
982 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
983 if (!ost->enc_ctx) {
984 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
985 exit_program(1);
986 }
987 ost->enc_ctx->codec_type = type;
988
989 if (ost->enc) {
990 AVIOContext *s = NULL;
991 char *buf = NULL, *arg = NULL, *preset = NULL;
992
993 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
994
995 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
996 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
997 do {
998 buf = get_line(s);
999 if (!buf[0] || buf[0] == '#') {
1000 av_free(buf);
1001 continue;
1002 }
1003 if (!(arg = strchr(buf, '='))) {
1004 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1005 exit_program(1);
1006 }
1007 *arg++ = 0;
1008 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1009 av_free(buf);
1010 } while (!s->eof_reached);
1011 avio_close(s);
1012 }
1013 if (ret) {
1014 av_log(NULL, AV_LOG_FATAL,
1015 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1016 preset, ost->file_index, ost->index);
1017 exit_program(1);
1018 }
1019 } else {
1020 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1021 }
1022
1023 ost->max_frames = INT64_MAX;
1024 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1025
1026 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
1027 while (bsfs && *bsfs) {
1028 const AVBitStreamFilter *filter;
1029 const char *bsf, *bsf_options_str, *bsf_name;
1030 AVDictionary *bsf_options = NULL;
1031
1032 bsf = bsf_options_str = av_get_token(&bsfs, ",");
1033 if (!bsf)
1034 exit_program(1);
1035 bsf_name = av_get_token(&bsf_options_str, "=");
1036 if (!bsf_name)
1037 exit_program(1);
1038
1039 filter = av_bsf_get_by_name(bsf_name);
1040 if (!filter) {
1041 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
1042 exit_program(1);
1043 }
1044 if (*bsf_options_str++) {
1045 ret = av_dict_parse_string(&bsf_options, bsf_options_str, "=", ":", 0);
1046 if (ret < 0) {
1047 av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
1048 exit_program(1);
1049 }
1050 }
1051 av_freep(&bsf);
1052
1053 ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
1054 ost->nb_bitstream_filters + 1,
1055 sizeof(*ost->bsf_ctx));
1056 if (!ost->bsf_ctx)
1057 exit_program(1);
1058
1059 ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
1060 if (ret < 0) {
1061 av_log(NULL, AV_LOG_ERROR, "Error allocating a bistream filter context\n");
1062 exit_program(1);
1063 }
1064 ost->nb_bitstream_filters++;
1065
1066 if (bsf_options) {
1067 ret = av_opt_set_dict(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, &bsf_options);
1068 if (ret < 0) {
1069 av_log(NULL, AV_LOG_ERROR, "Error setting options for bitstream filter %s\n", bsf_name);
1070 exit_program(1);
1071 }
1072 assert_avoptions(bsf_options);
1073 av_dict_free(&bsf_options);
1074 }
1075 av_freep(&bsf_name);
1076
1077 if (*bsfs)
1078 bsfs++;
1079 }
1080
1081 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1082 if (codec_tag) {
1083 uint32_t tag = strtol(codec_tag, &next, 0);
1084 if (*next)
1085 tag = AV_RL32(codec_tag);
1086 ost->enc_ctx->codec_tag = tag;
1087 }
1088
1089 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1090 if (qscale >= 0) {
1091 ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
1092 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1093 }
1094
1095 MATCH_PER_STREAM_OPT(bitrates, i, bitrate, oc, st);
1096 if (bitrate > 0) {
1097 if (ost->stream_copy)
1098 ost->bitrate_override = bitrate;
1099 else
1100 ost->enc_ctx->bit_rate = bitrate;
1101 }
1102
1103 ost->max_muxing_queue_size = 128;
1104 MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
1105 ost->max_muxing_queue_size *= sizeof(AVPacket);
1106
1107 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1108 ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
1109
1110 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1111
1112 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1113
1114 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
1115 ost->last_mux_dts = AV_NOPTS_VALUE;
1116
1117 ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
1118 if (!ost->muxing_queue)
1119 exit_program(1);
1120
1121 return ost;
1122 }
1123
1124 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1125 {
1126 int i;
1127 const char *p = str;
1128 for (i = 0;; i++) {
1129 dest[i] = atoi(p);
1130 if (i == 63)
1131 break;
1132 p = strchr(p, ',');
1133 if (!p) {
1134 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1135 exit_program(1);
1136 }
1137 p++;
1138 }
1139 }
1140
1141 /* read file contents into a string */
1142 static uint8_t *read_file(const char *filename)
1143 {
1144 AVIOContext *pb = NULL;
1145 AVIOContext *dyn_buf = NULL;
1146 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1147 uint8_t buf[1024], *str;
1148
1149 if (ret < 0) {
1150 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1151 return NULL;
1152 }
1153
1154 ret = avio_open_dyn_buf(&dyn_buf);
1155 if (ret < 0) {
1156 avio_closep(&pb);
1157 return NULL;
1158 }
1159 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1160 avio_write(dyn_buf, buf, ret);
1161 avio_w8(dyn_buf, 0);
1162 avio_closep(&pb);
1163
1164 ret = avio_close_dyn_buf(dyn_buf, &str);
1165 if (ret < 0)
1166 return NULL;
1167 return str;
1168 }
1169
1170 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1171 OutputStream *ost)
1172 {
1173 AVStream *st = ost->st;
1174 char *filter = NULL, *filter_script = NULL;
1175
1176 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1177 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1178
1179 if (filter_script && filter) {
1180 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1181 "output stream #%d:%d.\n", nb_output_files, st->index);
1182 exit_program(1);
1183 }
1184
1185 if (filter_script)
1186 return read_file(filter_script);
1187 else if (filter)
1188 return av_strdup(filter);
1189
1190 return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
1191 "null" : "anull");
1192 }
1193
1194 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
1195 {
1196 AVStream *st;
1197 OutputStream *ost;
1198 AVCodecContext *video_enc;
1199 char *frame_aspect_ratio = NULL;
1200
1201 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
1202 st = ost->st;
1203 video_enc = ost->enc_ctx;
1204
1205 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1206 if (frame_aspect_ratio)
1207 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
1208
1209 if (!ost->stream_copy) {
1210 const char *p = NULL;
1211 char *frame_rate = NULL, *frame_size = NULL;
1212 char *frame_pix_fmt = NULL;
1213 char *intra_matrix = NULL, *inter_matrix = NULL;
1214 int do_pass = 0;
1215 int i;
1216
1217 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1218 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1219 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1220 exit_program(1);
1221 }
1222
1223 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1224 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1225 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1226 exit_program(1);
1227 }
1228
1229 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1230 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1231 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1232 exit_program(1);
1233 }
1234 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1235
1236 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1237 if (intra_matrix) {
1238 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1239 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1240 exit_program(1);
1241 }
1242 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1243 }
1244 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1245 if (inter_matrix) {
1246 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1247 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1248 exit_program(1);
1249 }
1250 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1251 }
1252
1253 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1254 for (i = 0; p; i++) {
1255 int start, end, q;
1256 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1257 if (e != 3) {
1258 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1259 exit_program(1);
1260 }
1261 video_enc->rc_override =
1262 av_realloc(video_enc->rc_override,
1263 sizeof(RcOverride) * (i + 1));
1264 if (!video_enc->rc_override) {
1265 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
1266 exit_program(1);
1267 }
1268 video_enc->rc_override[i].start_frame = start;
1269 video_enc->rc_override[i].end_frame = end;
1270 if (q > 0) {
1271 video_enc->rc_override[i].qscale = q;
1272 video_enc->rc_override[i].quality_factor = 1.0;
1273 }
1274 else {
1275 video_enc->rc_override[i].qscale = 0;
1276 video_enc->rc_override[i].quality_factor = -q/100.0;
1277 }
1278 p = strchr(p, '/');
1279 if (p) p++;
1280 }
1281 video_enc->rc_override_count = i;
1282 video_enc->intra_dc_precision = intra_dc_precision - 8;
1283
1284 /* two pass mode */
1285 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1286 if (do_pass) {
1287 if (do_pass == 1) {
1288 video_enc->flags |= AV_CODEC_FLAG_PASS1;
1289 } else {
1290 video_enc->flags |= AV_CODEC_FLAG_PASS2;
1291 }
1292 }
1293
1294 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1295 if (ost->logfile_prefix &&
1296 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1297 exit_program(1);
1298
1299 if (do_pass) {
1300 char logfilename[1024];
1301 FILE *f;
1302
1303 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1304 ost->logfile_prefix ? ost->logfile_prefix :
1305 DEFAULT_PASS_LOGFILENAME_PREFIX,
1306 i);
1307 if (!strcmp(ost->enc->name, "libx264")) {
1308 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1309 } else {
1310 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
1311 f = fopen(logfilename, "wb");
1312 if (!f) {
1313 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1314 logfilename, strerror(errno));
1315 exit_program(1);
1316 }
1317 ost->logfile = f;
1318 } else {
1319 char *logbuffer = read_file(logfilename);
1320
1321 if (!logbuffer) {
1322 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1323 logfilename);
1324 exit_program(1);
1325 }
1326 video_enc->stats_in = logbuffer;
1327 }
1328 }
1329 }
1330
1331 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1332 if (ost->forced_keyframes)
1333 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1334
1335 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1336
1337 ost->top_field_first = -1;
1338 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1339
1340
1341 ost->avfilter = get_ost_filters(o, oc, ost);
1342 if (!ost->avfilter)
1343 exit_program(1);
1344 } else {
1345 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1346 }
1347
1348 return ost;
1349 }
1350
1351 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
1352 {
1353 AVStream *st;
1354 OutputStream *ost;
1355 AVCodecContext *audio_enc;
1356
1357 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
1358 st = ost->st;
1359
1360 audio_enc = ost->enc_ctx;
1361 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1362
1363 if (!ost->stream_copy) {
1364 char *sample_fmt = NULL;
1365
1366 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1367
1368 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1369 if (sample_fmt &&
1370 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1371 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1372 exit_program(1);
1373 }
1374
1375 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1376
1377 ost->avfilter = get_ost_filters(o, oc, ost);
1378 if (!ost->avfilter)
1379 exit_program(1);
1380 }
1381
1382 return ost;
1383 }
1384
1385 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1386 {
1387 OutputStream *ost;
1388
1389 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1390 if (!ost->stream_copy) {
1391 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1392 exit_program(1);
1393 }
1394
1395 return ost;
1396 }
1397
1398 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1399 {
1400 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1401 ost->stream_copy = 1;
1402 ost->finished = 1;
1403 return ost;
1404 }
1405
1406 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1407 {
1408 OutputStream *ost;
1409 AVCodecContext *subtitle_enc;
1410
1411 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1412 subtitle_enc = ost->enc_ctx;
1413
1414 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1415
1416 return ost;
1417 }
1418
1419 /* arg format is "output-stream-index:streamid-value". */
1420 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1421 {
1422 OptionsContext *o = optctx;
1423 int idx;
1424 char *p;
1425 char idx_str[16];
1426
1427 av_strlcpy(idx_str, arg, sizeof(idx_str));
1428 p = strchr(idx_str, ':');
1429 if (!p) {
1430 av_log(NULL, AV_LOG_FATAL,
1431 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1432 arg, opt);
1433 exit_program(1);
1434 }
1435 *p++ = '\0';
1436 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1437 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1438 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1439 return 0;
1440 }
1441
1442 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1443 {
1444 AVFormatContext *is = ifile->ctx;
1445 AVFormatContext *os = ofile->ctx;
1446 AVChapter **tmp;
1447 int i;
1448
1449 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1450 if (!tmp)
1451 return AVERROR(ENOMEM);
1452 os->chapters = tmp;
1453
1454 for (i = 0; i < is->nb_chapters; i++) {
1455 AVChapter *in_ch = is->chapters[i], *out_ch;
1456 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1457 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1458 AV_TIME_BASE_Q, in_ch->time_base);
1459 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1460 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1461
1462
1463 if (in_ch->end < ts_off)
1464 continue;
1465 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1466 break;
1467
1468 out_ch = av_mallocz(sizeof(AVChapter));
1469 if (!out_ch)
1470 return AVERROR(ENOMEM);
1471
1472 out_ch->id = in_ch->id;
1473 out_ch->time_base = in_ch->time_base;
1474 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1475 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1476
1477 if (copy_metadata)
1478 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1479
1480 os->chapters[os->nb_chapters++] = out_ch;
1481 }
1482 return 0;
1483 }
1484
1485 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1486 AVFormatContext *oc)
1487 {
1488 OutputStream *ost;
1489
1490 switch (ofilter->type) {
1491 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1492 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1493 default:
1494 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1495 "currently.\n");
1496 exit_program(1);
1497 }
1498
1499 ost->source_index = -1;
1500 ost->filter = ofilter;
1501
1502 ofilter->ost = ost;
1503 ofilter->format = -1;
1504
1505 if (ost->stream_copy) {
1506 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1507 "which is fed from a complex filtergraph. Filtering and streamcopy "
1508 "cannot be used together.\n", ost->file_index, ost->index);
1509 exit_program(1);
1510 }
1511
1512 avfilter_inout_free(&ofilter->out_tmp);
1513 }
1514
1515 static int init_complex_filters(void)
1516 {
1517 int i, ret = 0;
1518
1519 for (i = 0; i < nb_filtergraphs; i++) {
1520 ret = init_complex_filtergraph(filtergraphs[i]);
1521 if (ret < 0)
1522 return ret;
1523 }
1524 return 0;
1525 }
1526
1527 static int open_output_file(OptionsContext *o, const char *filename)
1528 {
1529 AVFormatContext *oc;
1530 int i, j, err;
1531 AVOutputFormat *file_oformat;
1532 OutputFile *of;
1533 OutputStream *ost;
1534 InputStream *ist;
1535 AVDictionary *unused_opts = NULL;
1536 AVDictionaryEntry *e = NULL;
1537
1538 GROW_ARRAY(output_files, nb_output_files);
1539 of = av_mallocz(sizeof(*of));
1540 if (!of)
1541 exit_program(1);
1542 output_files[nb_output_files - 1] = of;
1543
1544 of->ost_index = nb_output_streams;
1545 of->recording_time = o->recording_time;
1546 of->start_time = o->start_time;
1547 of->limit_filesize = o->limit_filesize;
1548 of->shortest = o->shortest;
1549 av_dict_copy(&of->opts, o->g->format_opts, 0);
1550
1551 if (!strcmp(filename, "-"))
1552 filename = "pipe:";
1553
1554 oc = avformat_alloc_context();
1555 if (!oc) {
1556 print_error(filename, AVERROR(ENOMEM));
1557 exit_program(1);
1558 }
1559 of->ctx = oc;
1560 if (o->recording_time != INT64_MAX)
1561 oc->duration = o->recording_time;
1562
1563 if (o->format) {
1564 file_oformat = av_guess_format(o->format, NULL, NULL);
1565 if (!file_oformat) {
1566 av_log(NULL, AV_LOG_FATAL, "Requested output format '%s' is not a suitable output format\n", o->format);
1567 exit_program(1);
1568 }
1569 } else {
1570 file_oformat = av_guess_format(NULL, filename, NULL);
1571 if (!file_oformat) {
1572 av_log(NULL, AV_LOG_FATAL, "Unable to find a suitable output format for '%s'\n",
1573 filename);
1574 exit_program(1);
1575 }
1576 }
1577
1578 oc->oformat = file_oformat;
1579 oc->interrupt_callback = int_cb;
1580 av_strlcpy(oc->filename, filename, sizeof(oc->filename));
1581
1582 /* create streams for all unlabeled output pads */
1583 for (i = 0; i < nb_filtergraphs; i++) {
1584 FilterGraph *fg = filtergraphs[i];
1585 for (j = 0; j < fg->nb_outputs; j++) {
1586 OutputFilter *ofilter = fg->outputs[j];
1587
1588 if (!ofilter->out_tmp || ofilter->out_tmp->name)
1589 continue;
1590
1591 switch (ofilter->type) {
1592 case AVMEDIA_TYPE_VIDEO: o->video_disable = 1; break;
1593 case AVMEDIA_TYPE_AUDIO: o->audio_disable = 1; break;
1594 case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
1595 }
1596 init_output_filter(ofilter, o, oc);
1597 }
1598 }
1599
1600 if (!o->nb_stream_maps) {
1601 /* pick the "best" stream of each type */
1602 #define NEW_STREAM(type, index)\
1603 if (index >= 0) {\
1604 ost = new_ ## type ## _stream(o, oc);\
1605 ost->source_index = index;\
1606 ost->sync_ist = input_streams[index];\
1607 input_streams[index]->discard = 0;\
1608 input_streams[index]->st->discard = AVDISCARD_NONE;\
1609 }
1610
1611 /* video: highest resolution */
1612 if (!o->video_disable && oc->oformat->video_codec != AV_CODEC_ID_NONE) {
1613 int area = 0, idx = -1;
1614 for (i = 0; i < nb_input_streams; i++) {
1615 ist = input_streams[i];
1616 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1617 ist->st->codecpar->width * ist->st->codecpar->height > area) {
1618 area = ist->st->codecpar->width * ist->st->codecpar->height;
1619 idx = i;
1620 }
1621 }
1622 NEW_STREAM(video, idx);
1623 }
1624
1625 /* audio: most channels */
1626 if (!o->audio_disable && oc->oformat->audio_codec != AV_CODEC_ID_NONE) {
1627 int channels = 0, idx = -1;
1628 for (i = 0; i < nb_input_streams; i++) {
1629 ist = input_streams[i];
1630 if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1631 ist->st->codecpar->channels > channels) {
1632 channels = ist->st->codecpar->channels;
1633 idx = i;
1634 }
1635 }
1636 NEW_STREAM(audio, idx);
1637 }
1638
1639 /* subtitles: pick first */
1640 if (!o->subtitle_disable && oc->oformat->subtitle_codec != AV_CODEC_ID_NONE) {
1641 for (i = 0; i < nb_input_streams; i++)
1642 if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
1643 NEW_STREAM(subtitle, i);
1644 break;
1645 }
1646 }
1647 /* do something with data? */
1648 } else {
1649 for (i = 0; i < o->nb_stream_maps; i++) {
1650 StreamMap *map = &o->stream_maps[i];
1651
1652 if (map->disabled)
1653 continue;
1654
1655 if (map->linklabel) {
1656 FilterGraph *fg;
1657 OutputFilter *ofilter = NULL;
1658 int j, k;
1659
1660 for (j = 0; j < nb_filtergraphs; j++) {
1661 fg = filtergraphs[j];
1662 for (k = 0; k < fg->nb_outputs; k++) {
1663 AVFilterInOut *out = fg->outputs[k]->out_tmp;
1664 if (out && !strcmp(out->name, map->linklabel)) {
1665 ofilter = fg->outputs[k];
1666 goto loop_end;
1667 }
1668 }
1669 }
1670 loop_end:
1671 if (!ofilter) {
1672 av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
1673 "in any defined filter graph.\n", map->linklabel);
1674 exit_program(1);
1675 }
1676 init_output_filter(ofilter, o, oc);
1677 } else {
1678 ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
1679 switch (ist->st->codecpar->codec_type) {
1680 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1681 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1682 case AVMEDIA_TYPE_SUBTITLE: ost = new_subtitle_stream(o, oc); break;
1683 case AVMEDIA_TYPE_DATA: ost = new_data_stream(o, oc); break;
1684 case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc); break;
1685 default:
1686 av_log(NULL, AV_LOG_FATAL, "Cannot map stream #%d:%d - unsupported type.\n",
1687 map->file_index, map->stream_index);
1688 exit_program(1);
1689 }
1690
1691 ost->source_index = input_files[map->file_index]->ist_index + map->stream_index;
1692 ost->sync_ist = input_streams[input_files[map->sync_file_index]->ist_index +
1693 map->sync_stream_index];
1694 ist->discard = 0;
1695 ist->st->discard = AVDISCARD_NONE;
1696 }
1697 }
1698 }
1699
1700 /* handle attached files */
1701 for (i = 0; i < o->nb_attachments; i++) {
1702 AVIOContext *pb;
1703 uint8_t *attachment;
1704 const char *p;
1705 int64_t len;
1706
1707 if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
1708 av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
1709 o->attachments[i]);
1710 exit_program(1);
1711 }
1712 if ((len = avio_size(pb)) <= 0) {
1713 av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
1714 o->attachments[i]);
1715 exit_program(1);
1716 }
1717 if (!(attachment = av_malloc(len))) {
1718 av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
1719 o->attachments[i]);
1720 exit_program(1);
1721 }
1722 avio_read(pb, attachment, len);
1723
1724 ost = new_attachment_stream(o, oc);
1725 ost->stream_copy = 0;
1726 ost->source_index = -1;
1727 ost->attachment_filename = o->attachments[i];
1728 ost->st->codecpar->extradata = attachment;
1729 ost->st->codecpar->extradata_size = len;
1730
1731 p = strrchr(o->attachments[i], '/');
1732 av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
1733 avio_close(pb);
1734 }
1735
1736 if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
1737 av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
1738 av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
1739 exit_program(1);
1740 }
1741
1742 /* check if all codec options have been used */
1743 unused_opts = strip_specifiers(o->g->codec_opts);
1744 for (i = of->ost_index; i < nb_output_streams; i++) {
1745 e = NULL;
1746 while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
1747 AV_DICT_IGNORE_SUFFIX)))
1748 av_dict_set(&unused_opts, e->key, NULL, 0);
1749 }
1750
1751 e = NULL;
1752 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
1753 const AVClass *class = avcodec_get_class();
1754 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
1755 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
1756 if (!option)
1757 continue;
1758 if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
1759 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
1760 "output file #%d (%s) is not an encoding option.\n", e->key,
1761 option->help ? option->help : "", nb_output_files - 1,
1762 filename);
1763 exit_program(1);
1764 }
1765
1766 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
1767 "output file #%d (%s) has not been used for any stream. The most "
1768 "likely reason is either wrong type (e.g. a video option with "
1769 "no video streams) or that it is a private option of some encoder "
1770 "which was not actually used for any stream.\n", e->key,
1771 option->help ? option->help : "", nb_output_files - 1, filename);
1772 }
1773 av_dict_free(&unused_opts);
1774
1775 /* set the decoding_needed flags and create simple filtergraphs */
1776 for (i = of->ost_index; i < nb_output_streams; i++) {
1777 OutputStream *ost = output_streams[i];
1778
1779 if (ost->encoding_needed && ost->source_index >= 0) {
1780 InputStream *ist = input_streams[ost->source_index];
1781 ist->decoding_needed = 1;
1782
1783 if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
1784 ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
1785 err = init_simple_filtergraph(ist, ost);
1786 if (err < 0) {
1787 av_log(NULL, AV_LOG_ERROR,
1788 "Error initializing a simple filtergraph between streams "
1789 "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
1790 nb_output_files - 1, ost->st->index);
1791 exit_program(1);
1792 }
1793 }
1794 }
1795
1796 /*
1797 * We want CFR output if and only if one of those is true:
1798 * 1) user specified output framerate with -r
1799 * 2) user specified -vsync cfr
1800 * 3) output format is CFR and the user didn't force vsync to
1801 * something else than CFR
1802 *
1803 * in such a case, set ost->frame_rate
1804 */
1805 if (ost->encoding_needed && ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
1806 int format_cfr = !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS));
1807 int need_cfr = !!ost->frame_rate.num;
1808
1809 if (video_sync_method == VSYNC_CFR ||
1810 (video_sync_method == VSYNC_AUTO && format_cfr))
1811 need_cfr = 1;
1812
1813 if (need_cfr && !ost->frame_rate.num) {
1814 InputStream *ist = ost->source_index >= 0 ? input_streams[ost->source_index] : NULL;
1815
1816 if (ist && ist->framerate.num)
1817 ost->frame_rate = ist->framerate;
1818 else if (ist && ist->st->avg_frame_rate.num)
1819 ost->frame_rate = ist->st->avg_frame_rate;
1820 else {
1821 av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
1822 "for the output stream #%d:%d, but no information "
1823 "about the input framerate is available. Falling "
1824 "back to a default value of 25fps. Use the -r option "
1825 "if you want a different framerate.\n",
1826 ost->file_index, ost->index);
1827 ost->frame_rate = (AVRational){ 25, 1 };
1828 }
1829 }
1830
1831 if (need_cfr && ost->enc->supported_framerates && !ost->force_fps) {
1832 int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
1833 ost->frame_rate = ost->enc->supported_framerates[idx];
1834 }
1835 }
1836
1837 /* set the filter output constraints */
1838 if (ost->filter) {
1839 OutputFilter *f = ost->filter;
1840 int count;
1841 switch (ost->enc_ctx->codec_type) {
1842 case AVMEDIA_TYPE_VIDEO:
1843 f->frame_rate = ost->frame_rate;
1844 f->width = ost->enc_ctx->width;
1845 f->height = ost->enc_ctx->height;
1846 if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
1847 f->format = ost->enc_ctx->pix_fmt;
1848 } else if (ost->enc->pix_fmts) {
1849 count = 0;
1850 while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
1851 count++;
1852 f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
1853 if (!f->formats)
1854 exit_program(1);
1855 memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
1856 }
1857 break;
1858 case AVMEDIA_TYPE_AUDIO:
1859 if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
1860 f->format = ost->enc_ctx->sample_fmt;
1861 } else if (ost->enc->sample_fmts) {
1862 count = 0;
1863 while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
1864 count++;
1865 f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
1866 if (!f->formats)
1867 exit_program(1);
1868 memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
1869 }
1870 if (ost->enc_ctx->sample_rate) {
1871 f->sample_rate = ost->enc_ctx->sample_rate;
1872 } else if (ost->enc->supported_samplerates) {
1873 count = 0;
1874 while (ost->enc->supported_samplerates[count])
1875 count++;
1876 f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
1877 if (!f->sample_rates)
1878 exit_program(1);
1879 memcpy(f->sample_rates, ost->enc->supported_samplerates,
1880 (count + 1) * sizeof(*f->sample_rates));
1881 }
1882 if (ost->enc_ctx->channels) {
1883 f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
1884 } else if (ost->enc->channel_layouts) {
1885 count = 0;
1886 while (ost->enc->channel_layouts[count])
1887 count++;
1888 f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
1889 if (!f->channel_layouts)
1890 exit_program(1);
1891 memcpy(f->channel_layouts, ost->enc->channel_layouts,
1892 (count + 1) * sizeof(*f->channel_layouts));
1893 }
1894 break;
1895 }
1896 }
1897
1898 }
1899
1900 /* check filename in case of an image number is expected */
1901 if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
1902 if (!av_filename_number_test(oc->filename)) {
1903 print_error(oc->filename, AVERROR(EINVAL));
1904 exit_program(1);
1905 }
1906 }
1907
1908 if (!(oc->oformat->flags & AVFMT_NOFILE)) {
1909 /* test if it already exists to avoid losing precious files */
1910 assert_file_overwrite(filename);
1911
1912 /* open the file */
1913 if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
1914 &oc->interrupt_callback,
1915 &of->opts)) < 0) {
1916 print_error(filename, err);
1917 exit_program(1);
1918 }
1919 }
1920
1921 if (o->mux_preload) {
1922 uint8_t buf[64];
1923 snprintf(buf, sizeof(buf), "%d", (int)(o->mux_preload*AV_TIME_BASE));
1924 av_dict_set(&of->opts, "preload", buf, 0);
1925 }
1926 oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
1927 oc->flags |= AVFMT_FLAG_NONBLOCK;
1928
1929 /* copy metadata */
1930 for (i = 0; i < o->nb_metadata_map; i++) {
1931 char *p;
1932 int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
1933
1934 if (in_file_index >= nb_input_files) {
1935 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
1936 exit_program(1);
1937 }
1938 copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
1939 in_file_index >= 0 ?
1940 input_files[in_file_index]->ctx : NULL, o);
1941 }
1942
1943 /* copy chapters */
1944 if (o->chapters_input_file >= nb_input_files) {
1945 if (o->chapters_input_file == INT_MAX) {
1946 /* copy chapters from the first input file that has them*/
1947 o->chapters_input_file = -1;
1948 for (i = 0; i < nb_input_files; i++)
1949 if (input_files[i]->ctx->nb_chapters) {
1950 o->chapters_input_file = i;
1951 break;
1952 }
1953 } else {
1954 av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
1955 o->chapters_input_file);
1956 exit_program(1);
1957 }
1958 }
1959 if (o->chapters_input_file >= 0)
1960 copy_chapters(input_files[o->chapters_input_file], of,
1961 !o->metadata_chapters_manual);
1962
1963 /* copy global metadata by default */
1964 if (!o->metadata_global_manual && nb_input_files)
1965 av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
1966 AV_DICT_DONT_OVERWRITE);
1967 if (!o->metadata_streams_manual)
1968 for (i = of->ost_index; i < nb_output_streams; i++) {
1969 InputStream *ist;
1970 if (output_streams[i]->source_index < 0) /* this is true e.g. for attached files */
1971 continue;
1972 ist = input_streams[output_streams[i]->source_index];
1973 av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
1974 }
1975
1976 /* process manually set metadata */
1977 for (i = 0; i < o->nb_metadata; i++) {
1978 AVDictionary **m;
1979 char type, *val;
1980 const char *stream_spec;
1981 int index = 0, j, ret;
1982
1983 val = strchr(o->metadata[i].u.str, '=');
1984 if (!val) {
1985 av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
1986 o->metadata[i].u.str);
1987 exit_program(1);
1988 }
1989 *val++ = 0;
1990
1991 parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
1992 if (type == 's') {
1993 for (j = 0; j < oc->nb_streams; j++) {
1994 if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
1995 av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
1996 } else if (ret < 0)
1997 exit_program(1);
1998 }
1999 }
2000 else {
2001 switch (type) {
2002 case 'g':
2003 m = &oc->metadata;
2004 break;
2005 case 'c':
2006 if (index < 0 || index >= oc->nb_chapters) {
2007 av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
2008 exit_program(1);
2009 }
2010 m = &oc->chapters[index]->metadata;
2011 break;
2012 default:
2013 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
2014 exit_program(1);
2015 }
2016 av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
2017 }
2018 }
2019
2020 return 0;
2021 }
2022
2023 static int opt_target(void *optctx, const char *opt, const char *arg)
2024 {
2025 OptionsContext *o = optctx;
2026 enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
2027 static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
2028
2029 if (!strncmp(arg, "pal-", 4)) {
2030 norm = PAL;
2031 arg += 4;
2032 } else if (!strncmp(arg, "ntsc-", 5)) {
2033 norm = NTSC;
2034 arg += 5;
2035 } else if (!strncmp(arg, "film-", 5)) {
2036 norm = FILM;
2037 arg += 5;
2038 } else {
2039 /* Try to determine PAL/NTSC by peeking in the input files */
2040 if (nb_input_files) {
2041 int i, j, fr;
2042 for (j = 0; j < nb_input_files; j++) {
2043 for (i = 0; i < input_files[j]->nb_streams; i++) {
2044 AVStream *st = input_files[j]->ctx->streams[i];
2045 if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
2046 continue;
2047 fr = st->time_base.den * 1000 / st->time_base.num;
2048 if (fr == 25000) {
2049 norm = PAL;
2050 break;
2051 } else if ((fr == 29970) || (fr == 23976)) {
2052 norm = NTSC;
2053 break;
2054 }
2055 }
2056 if (norm != UNKNOWN)
2057 break;
2058 }
2059 }
2060 if (norm != UNKNOWN)
2061 av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
2062 }
2063
2064 if (norm == UNKNOWN) {
2065 av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
2066 av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
2067 av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
2068 exit_program(1);
2069 }
2070
2071 if (!strcmp(arg, "vcd")) {
2072 opt_video_codec(o, "c:v", "mpeg1video");
2073 opt_audio_codec(o, "c:a", "mp2");
2074 parse_option(o, "f", "vcd", options);
2075
2076 parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
2077 parse_option(o, "r", frame_rates[norm], options);
2078 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2079
2080 opt_default(NULL, "b", "1150000");
2081 opt_default(NULL, "maxrate", "1150000");
2082 opt_default(NULL, "minrate", "1150000");
2083 opt_default(NULL, "bufsize", "327680"); // 40*1024*8;
2084
2085 opt_default(NULL, "b:a", "224000");
2086 parse_option(o, "ar", "44100", options);
2087 parse_option(o, "ac", "2", options);
2088
2089 opt_default(NULL, "packetsize", "2324");
2090 opt_default(NULL, "muxrate", "3528"); // 2352 * 75 / 50;
2091
2092 /* We have to offset the PTS, so that it is consistent with the SCR.
2093 SCR starts at 36000, but the first two packs contain only padding
2094 and the first pack from the other stream, respectively, may also have
2095 been written before.
2096 So the real data starts at SCR 36000+3*1200. */
2097 o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
2098 } else if (!strcmp(arg, "svcd")) {
2099
2100 opt_video_codec(o, "c:v", "mpeg2video");
2101 opt_audio_codec(o, "c:a", "mp2");
2102 parse_option(o, "f", "svcd", options);
2103
2104 parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
2105 parse_option(o, "r", frame_rates[norm], options);
2106 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2107
2108 opt_default(NULL, "b", "2040000");
2109 opt_default(NULL, "maxrate", "2516000");
2110 opt_default(NULL, "minrate", "0"); // 1145000;
2111 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2112 opt_default(NULL, "scan_offset", "1");
2113
2114
2115 opt_default(NULL, "b:a", "224000");
2116 parse_option(o, "ar", "44100", options);
2117
2118 opt_default(NULL, "packetsize", "2324");
2119
2120 } else if (!strcmp(arg, "dvd")) {
2121
2122 opt_video_codec(o, "c:v", "mpeg2video");
2123 opt_audio_codec(o, "c:a", "ac3");
2124 parse_option(o, "f", "dvd", options);
2125
2126 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2127 parse_option(o, "r", frame_rates[norm], options);
2128 opt_default(NULL, "g", norm == PAL ? "15" : "18");
2129
2130 opt_default(NULL, "b", "6000000");
2131 opt_default(NULL, "maxrate", "9000000");
2132 opt_default(NULL, "minrate", "0"); // 1500000;
2133 opt_default(NULL, "bufsize", "1835008"); // 224*1024*8;
2134
2135 opt_default(NULL, "packetsize", "2048"); // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
2136 opt_default(NULL, "muxrate", "25200"); // from mplex project: data_rate = 1260000. mux_rate = data_rate / 50
2137
2138 opt_default(NULL, "b:a", "448000");
2139 parse_option(o, "ar", "48000", options);
2140
2141 } else if (!strncmp(arg, "dv", 2)) {
2142
2143 parse_option(o, "f", "dv", options);
2144
2145 parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
2146 parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
2147 norm == PAL ? "yuv420p" : "yuv411p", options);
2148 parse_option(o, "r", frame_rates[norm], options);
2149
2150 parse_option(o, "ar", "48000", options);
2151 parse_option(o, "ac", "2", options);
2152
2153 } else {
2154 av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
2155 return AVERROR(EINVAL);
2156 }
2157
2158 av_dict_copy(&o->g->codec_opts, codec_opts, 0);
2159 av_dict_copy(&o->g->format_opts, format_opts, 0);
2160
2161 return 0;
2162 }
2163
2164 static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
2165 {
2166 av_free (vstats_filename);
2167 vstats_filename = av_strdup (arg);
2168 return 0;
2169 }
2170
2171 static int opt_vstats(void *optctx, const char *opt, const char *arg)
2172 {
2173 char filename[40];
2174 time_t today2 = time(NULL);
2175 struct tm *today = localtime(&today2);
2176
2177 if (!today) { // maybe tomorrow
2178 av_log(NULL, AV_LOG_FATAL, "Unable to get current time.\n");
2179 exit_program(1);
2180 }
2181
2182 snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
2183 today->tm_sec);
2184 return opt_vstats_file(NULL, opt, filename);
2185 }
2186
2187 static int opt_video_frames(void *optctx, const char *opt, const char *arg)
2188 {
2189 OptionsContext *o = optctx;
2190 return parse_option(o, "frames:v", arg, options);
2191 }
2192
2193 static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
2194 {
2195 OptionsContext *o = optctx;
2196 return parse_option(o, "frames:a", arg, options);
2197 }
2198
2199 static int opt_data_frames(void *optctx, const char *opt, const char *arg)
2200 {
2201 OptionsContext *o = optctx;
2202 return parse_option(o, "frames:d", arg, options);
2203 }
2204
2205 static int opt_video_tag(void *optctx, const char *opt, const char *arg)
2206 {
2207 OptionsContext *o = optctx;
2208 return parse_option(o, "tag:v", arg, options);
2209 }
2210
2211 static int opt_audio_tag(void *optctx, const char *opt, const char *arg)
2212 {
2213 OptionsContext *o = optctx;
2214 return parse_option(o, "tag:a", arg, options);
2215 }
2216
2217 static int opt_subtitle_tag(void *optctx, const char *opt, const char *arg)
2218 {
2219 OptionsContext *o = optctx;
2220 return parse_option(o, "tag:s", arg, options);
2221 }
2222
2223 static int opt_video_filters(void *optctx, const char *opt, const char *arg)
2224 {
2225 OptionsContext *o = optctx;
2226 return parse_option(o, "filter:v", arg, options);
2227 }
2228
2229 static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
2230 {
2231 OptionsContext *o = optctx;
2232 return parse_option(o, "filter:a", arg, options);
2233 }
2234
2235 static int opt_vsync(void *optctx, const char *opt, const char *arg)
2236 {
2237 if (!av_strcasecmp(arg, "cfr")) video_sync_method = VSYNC_CFR;
2238 else if (!av_strcasecmp(arg, "vfr")) video_sync_method = VSYNC_VFR;
2239 else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
2240
2241 if (video_sync_method == VSYNC_AUTO)
2242 video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
2243 return 0;
2244 }
2245
2246 static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
2247 {
2248 OptionsContext *o = optctx;
2249 char layout_str[32];
2250 char *stream_str;
2251 char *ac_str;
2252 int ret, channels, ac_str_size;
2253 uint64_t layout;
2254
2255 layout = av_get_channel_layout(arg);
2256 if (!layout) {
2257 av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
2258 return AVERROR(EINVAL);
2259 }
2260 snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
2261 ret = opt_default(NULL, opt, layout_str);
2262 if (ret < 0)
2263 return ret;
2264
2265 /* set 'ac' option based on channel layout */
2266 channels = av_get_channel_layout_nb_channels(layout);
2267 snprintf(layout_str, sizeof(layout_str), "%d", channels);
2268 stream_str = strchr(opt, ':');
2269 ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
2270 ac_str = av_mallocz(ac_str_size);
2271 if (!ac_str)
2272 return AVERROR(ENOMEM);
2273 av_strlcpy(ac_str, "ac", 3);
2274 if (stream_str)
2275 av_strlcat(ac_str, stream_str, ac_str_size);
2276 ret = parse_option(o, ac_str, layout_str, options);
2277 av_free(ac_str);
2278
2279 return ret;
2280 }
2281
2282 static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
2283 {
2284 OptionsContext *o = optctx;
2285 return parse_option(o, "q:a", arg, options);
2286 }
2287
2288 static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
2289 {
2290 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2291 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2292 return AVERROR(ENOMEM);
2293 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2294 filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
2295 if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
2296 return AVERROR(ENOMEM);
2297 return 0;
2298 }
2299
2300 static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
2301 {
2302 uint8_t *graph_desc = read_file(arg);
2303 if (!graph_desc)
2304 return AVERROR(EINVAL);
2305
2306 GROW_ARRAY(filtergraphs, nb_filtergraphs);
2307 if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
2308 return AVERROR(ENOMEM);
2309 filtergraphs[nb_filtergraphs - 1]->index = nb_filtergraphs - 1;
2310 filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
2311 return 0;
2312 }
2313
2314 void show_help_default(const char *opt, const char *arg)
2315 {
2316 /* per-file options have at least one of those set */
2317 const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
2318 int show_advanced = 0, show_avoptions = 0;
2319
2320 if (opt && *opt) {
2321 if (!strcmp(opt, "long"))
2322 show_advanced = 1;
2323 else if (!strcmp(opt, "full"))
2324 show_advanced = show_avoptions = 1;
2325 else
2326 av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
2327 }
2328
2329 show_usage();
2330
2331 printf("Getting help:\n"
2332 " -h -- print basic options\n"
2333 " -h long -- print more options\n"
2334 " -h full -- print all options (including all format and codec specific options, very long)\n"
2335 " -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
2336 " See man %s for detailed description of the options.\n"
2337 "\n", program_name);
2338
2339 show_help_options(options, "Print help / information / capabilities:",
2340 OPT_EXIT, 0, 0);
2341
2342 show_help_options(options, "Global options (affect whole program "
2343 "instead of just one file:",
2344 0, per_file | OPT_EXIT | OPT_EXPERT, 0);
2345 if (show_advanced)
2346 show_help_options(options, "Advanced global options:", OPT_EXPERT,
2347 per_file | OPT_EXIT, 0);
2348
2349 show_help_options(options, "Per-file main options:", 0,
2350 OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
2351 OPT_EXIT, per_file);
2352 if (show_advanced)
2353 show_help_options(options, "Advanced per-file options:",
2354 OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
2355
2356 show_help_options(options, "Video options:",
2357 OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
2358 if (show_advanced)
2359 show_help_options(options, "Advanced Video options:",
2360 OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
2361
2362 show_help_options(options, "Audio options:",
2363 OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
2364 if (show_advanced)
2365 show_help_options(options, "Advanced Audio options:",
2366 OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
2367 show_help_options(options, "Subtitle options:",
2368 OPT_SUBTITLE, 0, 0);
2369 printf("\n");
2370
2371 if (show_avoptions) {
2372 int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
2373 show_help_children(avcodec_get_class(), flags);
2374 show_help_children(avformat_get_class(), flags);
2375 show_help_children(sws_get_class(), flags);
2376 show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM);
2377 }
2378 }
2379
2380 void show_usage(void)
2381 {
2382 printf("Hyper fast Audio and Video encoder\n");
2383 printf("usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
2384 printf("\n");
2385 }
2386
2387 enum OptGroup {
2388 GROUP_OUTFILE,
2389 GROUP_INFILE,
2390 };
2391
2392 static const OptionGroupDef groups[] = {
2393 [GROUP_OUTFILE] = { "output file", NULL, OPT_OUTPUT },
2394 [GROUP_INFILE] = { "input file", "i", OPT_INPUT },
2395 };
2396
2397 static int open_files(OptionGroupList *l, const char *inout,
2398 int (*open_file)(OptionsContext*, const char*))
2399 {
2400 int i, ret;
2401
2402 for (i = 0; i < l->nb_groups; i++) {
2403 OptionGroup *g = &l->groups[i];
2404 OptionsContext o;
2405
2406 init_options(&o);
2407 o.g = g;
2408
2409 ret = parse_optgroup(&o, g);
2410 if (ret < 0) {
2411 av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
2412 "%s.\n", inout, g->arg);
2413 return ret;
2414 }
2415
2416 av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
2417 ret = open_file(&o, g->arg);
2418 uninit_options(&o);
2419 if (ret < 0) {
2420 av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
2421 inout, g->arg);
2422 return ret;
2423 }
2424 av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
2425 }
2426
2427 return 0;
2428 }
2429
2430 int avconv_parse_options(int argc, char **argv)
2431 {
2432 OptionParseContext octx;
2433 uint8_t error[128];
2434 int ret;
2435
2436 memset(&octx, 0, sizeof(octx));
2437
2438 /* split the commandline into an internal representation */
2439 ret = split_commandline(&octx, argc, argv, options, groups,
2440 FF_ARRAY_ELEMS(groups));
2441 if (ret < 0) {
2442 av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
2443 goto fail;
2444 }
2445
2446 /* apply global options */
2447 ret = parse_optgroup(NULL, &octx.global_opts);
2448 if (ret < 0) {
2449 av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
2450 goto fail;
2451 }
2452
2453 /* open input files */
2454 ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
2455 if (ret < 0) {
2456 av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
2457 goto fail;
2458 }
2459
2460 /* create the complex filtergraphs */
2461 ret = init_complex_filters();
2462 if (ret < 0) {
2463 av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
2464 goto fail;
2465 }
2466
2467 /* open output files */
2468 ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
2469 if (ret < 0) {
2470 av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
2471 goto fail;
2472 }
2473
2474 fail:
2475 uninit_parse_context(&octx);
2476 if (ret < 0) {
2477 av_strerror(ret, error, sizeof(error));
2478 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2479 }
2480 return ret;
2481 }
2482
2483 #define OFFSET(x) offsetof(OptionsContext, x)
2484 const OptionDef options[] = {
2485 /* main options */
2486 CMDUTILS_COMMON_OPTIONS
2487 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2488 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2489 "force format", "fmt" },
2490 { "y", OPT_BOOL, { &file_overwrite },
2491 "overwrite output files" },
2492 { "n", OPT_BOOL, { &file_skip },
2493 "never overwrite output files" },
2494 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2495 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2496 "codec name", "codec" },
2497 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2498 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2499 "codec name", "codec" },
2500 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2501 OPT_OUTPUT, { .off = OFFSET(presets) },
2502 "preset name", "preset" },
2503 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2504 OPT_OUTPUT, { .func_arg = opt_map },
2505 "set input stream mapping",
2506 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2507 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2508 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2509 "set metadata information of outfile from infile",
2510 "outfile[,metadata]:infile[,metadata]" },
2511 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2512 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2513 "set chapters mapping", "input_file_index" },
2514 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2515 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2516 "record or transcode \"duration\" seconds of audio/video",
2517 "duration" },
2518 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2519 "set the limit file size in bytes", "limit_size" },
2520 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2521 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2522 "set the start time offset", "time_off" },
2523 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2524 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2525 "enable/disable accurate seeking with -ss" },
2526 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2527 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2528 "set the input ts offset", "time_off" },
2529 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2530 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2531 "set the input ts scale", "scale" },
2532 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2533 "add metadata", "string=string" },
2534 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2535 OPT_OUTPUT, { .func_arg = opt_data_frames },
2536 "set the number of data frames to record", "number" },
2537 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2538 "add timings for benchmarking" },
2539 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2540 "set max runtime in seconds", "limit" },
2541 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2542 "dump each input packet" },
2543 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2544 "when dumping packets, also dump the payload" },
2545 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2546 OPT_INPUT, { .off = OFFSET(rate_emu) },
2547 "read input at native frame rate", "" },
2548 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2549 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2550 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2551 { "vsync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vsync },
2552 "video sync method", "" },
2553 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2554 "audio sync method", "" },
2555 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2556 "audio drift threshold", "threshold" },
2557 { "copyts", OPT_BOOL | OPT_EXPERT, { &copy_ts },
2558 "copy timestamps" },
2559 { "copytb", OPT_BOOL | OPT_EXPERT, { &copy_tb },
2560 "copy input stream time base when stream copying" },
2561 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2562 OPT_OUTPUT, { .off = OFFSET(shortest) },
2563 "finish encoding within shortest input" },
2564 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2565 "timestamp discontinuity delta threshold", "threshold" },
2566 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2567 "exit on error", "error" },
2568 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2569 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2570 "copy initial non-keyframes" },
2571 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2572 "set the number of frames to record", "number" },
2573 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2574 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2575 "force codec tag/fourcc", "fourcc/tag" },
2576 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2577 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2578 "use fixed quality scale (VBR)", "q" },
2579 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2580 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2581 "use fixed quality scale (VBR)", "q" },
2582 { "b", HAS_ARG | OPT_INT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(bitrates) },
2583 "set stream bitrate in bits/second", "bitrate" },
2584 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2585 "set stream filterchain", "filter_list" },
2586 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2587 "read stream filtergraph description from a file", "filename" },
2588 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2589 "create a complex filtergraph", "graph_description" },
2590 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2591 "read complex filtergraph description from a file", "filename" },
2592 { "stats", OPT_BOOL, { &print_stats },
2593 "print progress report during encoding", },
2594 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2595 OPT_OUTPUT, { .func_arg = opt_attach },
2596 "add an attachment to the output file", "filename" },
2597 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2598 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2599 "extract an attachment into a file", "filename" },
2600 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
2601 OPT_OFFSET, { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
2602
2603 /* video options */
2604 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2605 "set the number of video frames to record", "number" },
2606 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2607 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2608 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2609 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2610 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2611 "set frame size (WxH or abbreviation)", "size" },
2612 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2613 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2614 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2615 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2616 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2617 "set pixel format", "format" },
2618 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(video_disable) },
2619 "disable video" },
2620 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2621 "discard threshold", "n" },
2622 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2623 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2624 "rate control override for specific intervals", "override" },
2625 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2626 OPT_OUTPUT, { .func_arg = opt_video_codec },
2627 "force video codec ('copy' to copy stream)", "codec" },
2628 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2629 "select the pass number (1 or 2)", "n" },
2630 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2631 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2632 "select two pass log file name prefix", "prefix" },
2633 { "vstats", OPT_VIDEO | OPT_EXPERT , { .func_arg = &opt_vstats },
2634 "dump video coding statistics to file" },
2635 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { .func_arg = opt_vstats_file },
2636 "dump video coding statistics to file", "file" },
2637 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2638 "video filters", "filter list" },
2639 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2640 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2641 "specify intra matrix coeffs", "matrix" },
2642 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2643 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2644 "specify inter matrix coeffs", "matrix" },
2645 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2646 OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2647 "top=1/bottom=0/auto=-1 field first", "" },
2648 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2649 "intra_dc_precision", "precision" },
2650 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2651 OPT_OUTPUT, { .func_arg = opt_video_tag },
2652 "force video tag/fourcc", "fourcc/tag" },
2653 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2654 "show QP histogram" },
2655 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2656 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2657 "force the selected framerate, disable the best supported framerate selection" },
2658 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2659 OPT_OUTPUT, { .func_arg = opt_streamid },
2660 "set the value of an outfile streamid", "streamIndex:value" },
2661 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2662 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2663 "force key frames at specified timestamps", "timestamps" },
2664 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2665 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2666 "use HW accelerated decoding", "hwaccel name" },
2667 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2668 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2669 "select a device for HW acceleration", "devicename" },
2670 { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2671 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_output_formats) },
2672 "select output format used with HW accelerated decoding", "format" },
2673
2674 { "hwaccels", OPT_EXIT, { .func_arg = show_hwaccels },
2675 "show available HW acceleration methods" },
2676 { "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC |
2677 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) },
2678 "automatically insert correct rotate filters" },
2679 { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT, { &hwaccel_lax_profile_check},
2680 "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
2681
2682 /* audio options */
2683 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2684 "set the number of audio frames to record", "number" },
2685 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2686 "set audio quality (codec-specific)", "quality", },
2687 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2688 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2689 "set audio sampling rate (in Hz)", "rate" },
2690 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2691 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2692 "set number of audio channels", "channels" },
2693 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(audio_disable) },
2694 "disable audio" },
2695 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2696 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2697 "force audio codec ('copy' to copy stream)", "codec" },
2698 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2699 OPT_OUTPUT, { .func_arg = opt_audio_tag },
2700 "force audio tag/fourcc", "fourcc/tag" },
2701 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2702 "change audio volume (256=normal)" , "volume" },
2703 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2704 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2705 "set sample format", "format" },
2706 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2707 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2708 "set channel layout", "layout" },
2709 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2710 "audio filters", "filter list" },
2711
2712 /* subtitle options */
2713 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2714 "disable subtitle" },
2715 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2716 "force subtitle codec ('copy' to copy stream)", "codec" },
2717 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_subtitle_tag }
2718 , "force subtitle tag/fourcc", "fourcc/tag" },
2719
2720 /* grab options */
2721 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2722
2723 /* muxer options */
2724 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2725 "set the maximum demux-decode delay", "seconds" },
2726 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2727 "set the initial demux-decode delay", "seconds" },
2728
2729 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2730 "A comma-separated list of bitstream filters", "bitstream_filters" },
2731
2732 { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
2733 "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
2734
2735 /* data codec support */
2736 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2737 "force data codec ('copy' to copy stream)", "codec" },
2738
2739 #if CONFIG_VAAPI
2740 { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
2741 "set VAAPI hardware device (DRM path or X11 display name)", "device" },
2742 #endif
2743
2744 { NULL, },
2745 };