814500d2bd1cb6684055d2f3cc2844754aa29349
[libav.git] / avconv_opt.c
1 /*
2 * avconv option parsing
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <stdint.h>
22
23 #include "avconv.h"
24 #include "cmdutils.h"
25
26 #include "libavformat/avformat.h"
27
28 #include "libavcodec/avcodec.h"
29
30 #include "libavfilter/avfilter.h"
31
32 #include "libavutil/avassert.h"
33 #include "libavutil/avstring.h"
34 #include "libavutil/avutil.h"
35 #include "libavutil/channel_layout.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/fifo.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/opt.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/pixfmt.h"
43
44 #define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
45
46 #define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
47 {\
48 int i, ret;\
49 for (i = 0; i < o->nb_ ## name; i++) {\
50 char *spec = o->name[i].specifier;\
51 if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
52 outvar = o->name[i].u.type;\
53 else if (ret < 0)\
54 exit_program(1);\
55 }\
56 }
57
58 const HWAccel hwaccels[] = {
59 #if HAVE_VDPAU_X11
60 { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
61 #endif
62 #if HAVE_DXVA2_LIB
63 { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
64 #endif
65 #if CONFIG_VDA
66 { "vda", vda_init, HWACCEL_VDA, AV_PIX_FMT_VDA },
67 #endif
68 #if CONFIG_LIBMFX
69 { "qsv", qsv_init, HWACCEL_QSV, AV_PIX_FMT_QSV },
70 #endif
71 #if CONFIG_VAAPI
72 { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
73 #endif
74 { 0 },
75 };
76 int hwaccel_lax_profile_check = 0;
77 AVBufferRef *hw_device_ctx;
78
79 char *vstats_filename;
80
81 float audio_drift_threshold = 0.1;
82 float dts_delta_threshold = 10;
83
84 int audio_volume = 256;
85 int audio_sync_method = 0;
86 int video_sync_method = VSYNC_AUTO;
87 int do_benchmark = 0;
88 int do_hex_dump = 0;
89 int do_pkt_dump = 0;
90 int copy_ts = 0;
91 int copy_tb = 1;
92 int exit_on_error = 0;
93 int print_stats = 1;
94 int qp_hist = 0;
95
96 static int file_overwrite = 0;
97 static int file_skip = 0;
98 static int video_discard = 0;
99 static int intra_dc_precision = 8;
100 static int using_stdin = 0;
101 static int input_sync;
102
103 static void uninit_options(OptionsContext *o)
104 {
105 const OptionDef *po = options;
106 int i;
107
108 /* all OPT_SPEC and OPT_STRING can be freed in generic way */
109 while (po->name) {
110 void *dst = (uint8_t*)o + po->u.off;
111
112 if (po->flags & OPT_SPEC) {
113 SpecifierOpt **so = dst;
114 int i, *count = (int*)(so + 1);
115 for (i = 0; i < *count; i++) {
116 av_freep(&(*so)[i].specifier);
117 if (po->flags & OPT_STRING)
118 av_freep(&(*so)[i].u.str);
119 }
120 av_freep(so);
121 *count = 0;
122 } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
123 av_freep(dst);
124 po++;
125 }
126
127 for (i = 0; i < o->nb_stream_maps; i++)
128 av_freep(&o->stream_maps[i].linklabel);
129 av_freep(&o->stream_maps);
130 av_freep(&o->meta_data_maps);
131 av_freep(&o->streamid_map);
132 }
133
134 static void init_options(OptionsContext *o)
135 {
136 memset(o, 0, sizeof(*o));
137
138 o->mux_max_delay = 0.7;
139 o->start_time = AV_NOPTS_VALUE;
140 o->recording_time = INT64_MAX;
141 o->limit_filesize = UINT64_MAX;
142 o->chapters_input_file = INT_MAX;
143 o->accurate_seek = 1;
144 }
145
146 /* return a copy of the input with the stream specifiers removed from the keys */
147 static AVDictionary *strip_specifiers(AVDictionary *dict)
148 {
149 AVDictionaryEntry *e = NULL;
150 AVDictionary *ret = NULL;
151
152 while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
153 char *p = strchr(e->key, ':');
154
155 if (p)
156 *p = 0;
157 av_dict_set(&ret, e->key, e->value, 0);
158 if (p)
159 *p = ':';
160 }
161 return ret;
162 }
163
164 static double parse_frame_aspect_ratio(const char *arg)
165 {
166 int x = 0, y = 0;
167 double ar = 0;
168 const char *p;
169 char *end;
170
171 p = strchr(arg, ':');
172 if (p) {
173 x = strtol(arg, &end, 10);
174 if (end == p)
175 y = strtol(end + 1, &end, 10);
176 if (x > 0 && y > 0)
177 ar = (double)x / (double)y;
178 } else
179 ar = strtod(arg, NULL);
180
181 if (!ar) {
182 av_log(NULL, AV_LOG_FATAL, "Incorrect aspect ratio specification.\n");
183 exit_program(1);
184 }
185 return ar;
186 }
187
188 static int show_hwaccels(void *optctx, const char *opt, const char *arg)
189 {
190 int i;
191
192 printf("Supported hardware acceleration:\n");
193 for (i = 0; i < FF_ARRAY_ELEMS(hwaccels) - 1; i++) {
194 printf("%s\n", hwaccels[i].name);
195 }
196 printf("\n");
197 return 0;
198 }
199
200 static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
201 {
202 OptionsContext *o = optctx;
203 return parse_option(o, "codec:a", arg, options);
204 }
205
206 static int opt_video_codec(void *optctx, const char *opt, const char *arg)
207 {
208 OptionsContext *o = optctx;
209 return parse_option(o, "codec:v", arg, options);
210 }
211
212 static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
213 {
214 OptionsContext *o = optctx;
215 return parse_option(o, "codec:s", arg, options);
216 }
217
218 static int opt_data_codec(void *optctx, const char *opt, const char *arg)
219 {
220 OptionsContext *o = optctx;
221 return parse_option(o, "codec:d", arg, options);
222 }
223
224 static int opt_map(void *optctx, const char *opt, const char *arg)
225 {
226 OptionsContext *o = optctx;
227 StreamMap *m = NULL;
228 int i, negative = 0, file_idx;
229 int sync_file_idx = -1, sync_stream_idx;
230 char *p, *sync;
231 char *map;
232
233 if (*arg == '-') {
234 negative = 1;
235 arg++;
236 }
237 map = av_strdup(arg);
238 if (!map)
239 return AVERROR(ENOMEM);
240
241 /* parse sync stream first, just pick first matching stream */
242 if (sync = strchr(map, ',')) {
243 *sync = 0;
244 sync_file_idx = strtol(sync + 1, &sync, 0);
245 if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
246 av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
247 exit_program(1);
248 }
249 if (*sync)
250 sync++;
251 for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
252 if (check_stream_specifier(input_files[sync_file_idx]->ctx,
253 input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
254 sync_stream_idx = i;
255 break;
256 }
257 if (i == input_files[sync_file_idx]->nb_streams) {
258 av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
259 "match any streams.\n", arg);
260 exit_program(1);
261 }
262 }
263
264
265 if (map[0] == '[') {
266 /* this mapping refers to lavfi output */
267 const char *c = map + 1;
268 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
269 m = &o->stream_maps[o->nb_stream_maps - 1];
270 m->linklabel = av_get_token(&c, "]");
271 if (!m->linklabel) {
272 av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
273 exit_program(1);
274 }
275 } else {
276 file_idx = strtol(map, &p, 0);
277 if (file_idx >= nb_input_files || file_idx < 0) {
278 av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
279 exit_program(1);
280 }
281 if (negative)
282 /* disable some already defined maps */
283 for (i = 0; i < o->nb_stream_maps; i++) {
284 m = &o->stream_maps[i];
285 if (file_idx == m->file_index &&
286 check_stream_specifier(input_files[m->file_index]->ctx,
287 input_files[m->file_index]->ctx->streams[m->stream_index],
288 *p == ':' ? p + 1 : p) > 0)
289 m->disabled = 1;
290 }
291 else
292 for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
293 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
294 *p == ':' ? p + 1 : p) <= 0)
295 continue;
296 GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
297 m = &o->stream_maps[o->nb_stream_maps - 1];
298
299 m->file_index = file_idx;
300 m->stream_index = i;
301
302 if (sync_file_idx >= 0) {
303 m->sync_file_index = sync_file_idx;
304 m->sync_stream_index = sync_stream_idx;
305 } else {
306 m->sync_file_index = file_idx;
307 m->sync_stream_index = i;
308 }
309 }
310 }
311
312 if (!m) {
313 av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n", arg);
314 exit_program(1);
315 }
316
317 av_freep(&map);
318 return 0;
319 }
320
321 static int opt_attach(void *optctx, const char *opt, const char *arg)
322 {
323 OptionsContext *o = optctx;
324 GROW_ARRAY(o->attachments, o->nb_attachments);
325 o->attachments[o->nb_attachments - 1] = arg;
326 return 0;
327 }
328
329 #if CONFIG_VAAPI
330 static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
331 {
332 int err;
333 err = vaapi_device_init(arg);
334 if (err < 0)
335 exit_program(1);
336 return 0;
337 }
338 #endif
339
340 /**
341 * Parse a metadata specifier passed as 'arg' parameter.
342 * @param arg metadata string to parse
343 * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
344 * @param index for type c/p, chapter/program index is written here
345 * @param stream_spec for type s, the stream specifier is written here
346 */
347 static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
348 {
349 if (*arg) {
350 *type = *arg;
351 switch (*arg) {
352 case 'g':
353 break;
354 case 's':
355 if (*(++arg) && *arg != ':') {
356 av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
357 exit_program(1);
358 }
359 *stream_spec = *arg == ':' ? arg + 1 : "";
360 break;
361 case 'c':
362 case 'p':
363 if (*(++arg) == ':')
364 *index = strtol(++arg, NULL, 0);
365 break;
366 default:
367 av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
368 exit_program(1);
369 }
370 } else
371 *type = 'g';
372 }
373
374 static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
375 {
376 AVDictionary **meta_in = NULL;
377 AVDictionary **meta_out;
378 int i, ret = 0;
379 char type_in, type_out;
380 const char *istream_spec = NULL, *ostream_spec = NULL;
381 int idx_in = 0, idx_out = 0;
382
383 parse_meta_type(inspec, &type_in, &idx_in, &istream_spec);
384 parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
385
386 if (type_in == 'g' || type_out == 'g')
387 o->metadata_global_manual = 1;
388 if (type_in == 's' || type_out == 's')
389 o->metadata_streams_manual = 1;
390 if (type_in == 'c' || type_out == 'c')
391 o->metadata_chapters_manual = 1;
392
393 /* ic is NULL when just disabling automatic mappings */
394 if (!ic)
395 return 0;
396
397 #define METADATA_CHECK_INDEX(index, nb_elems, desc)\
398 if ((index) < 0 || (index) >= (nb_elems)) {\
399 av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
400 (desc), (index));\
401 exit_program(1);\
402 }
403
404 #define SET_DICT(type, meta, context, index)\
405 switch (type) {\
406 case 'g':\
407 meta = &context->metadata;\
408 break;\
409 case 'c':\
410 METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
411 meta = &context->chapters[index]->metadata;\
412 break;\
413 case 'p':\
414 METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
415 meta = &context->programs[index]->metadata;\
416 break;\
417 case 's':\
418 break; /* handled separately below */ \
419 default: av_assert0(0);\
420 }\
421
422 SET_DICT(type_in, meta_in, ic, idx_in);
423 SET_DICT(type_out, meta_out, oc, idx_out);
424
425 /* for input streams choose first matching stream */
426 if (type_in == 's') {
427 for (i = 0; i < ic->nb_streams; i++) {
428 if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
429 meta_in = &ic->streams[i]->metadata;
430 break;
431 } else if (ret < 0)
432 exit_program(1);
433 }
434 if (!meta_in) {
435 av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match any streams.\n", istream_spec);
436 exit_program(1);
437 }
438 }
439
440 if (type_out == 's') {
441 for (i = 0; i < oc->nb_streams; i++) {
442 if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
443 meta_out = &oc->streams[i]->metadata;
444 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
445 } else if (ret < 0)
446 exit_program(1);
447 }
448 } else
449 av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
450
451 return 0;
452 }
453
454 static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
455 {
456 const AVCodecDescriptor *desc;
457 const char *codec_string = encoder ? "encoder" : "decoder";
458 AVCodec *codec;
459
460 codec = encoder ?
461 avcodec_find_encoder_by_name(name) :
462 avcodec_find_decoder_by_name(name);
463
464 if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
465 codec = encoder ? avcodec_find_encoder(desc->id) :
466 avcodec_find_decoder(desc->id);
467 if (codec)
468 av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
469 codec_string, codec->name, desc->name);
470 }
471
472 if (!codec) {
473 av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
474 exit_program(1);
475 }
476 if (codec->type != type) {
477 av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
478 exit_program(1);
479 }
480 return codec;
481 }
482
483 static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
484 {
485 char *codec_name = NULL;
486
487 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
488 if (codec_name) {
489 AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
490 st->codecpar->codec_id = codec->id;
491 return codec;
492 } else
493 return avcodec_find_decoder(st->codecpar->codec_id);
494 }
495
496 /* Add all the streams from the given input file to the global
497 * list of input streams. */
498 static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
499 {
500 int i, ret;
501
502 for (i = 0; i < ic->nb_streams; i++) {
503 AVStream *st = ic->streams[i];
504 AVCodecParameters *par = st->codecpar;
505 InputStream *ist = av_mallocz(sizeof(*ist));
506 char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
507 char *hwaccel_output_format = NULL;
508 char *codec_tag = NULL;
509 char *next;
510
511 if (!ist)
512 exit_program(1);
513
514 GROW_ARRAY(input_streams, nb_input_streams);
515 input_streams[nb_input_streams - 1] = ist;
516
517 ist->st = st;
518 ist->file_index = nb_input_files;
519 ist->discard = 1;
520 st->discard = AVDISCARD_ALL;
521 ist->nb_samples = 0;
522 ist->min_pts = INT64_MAX;
523 ist->max_pts = INT64_MIN;
524
525 ist->ts_scale = 1.0;
526 MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
527
528 ist->autorotate = 1;
529 MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
530
531 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
532 if (codec_tag) {
533 uint32_t tag = strtol(codec_tag, &next, 0);
534 if (*next)
535 tag = AV_RL32(codec_tag);
536 st->codecpar->codec_tag = tag;
537 }
538
539 ist->dec = choose_decoder(o, ic, st);
540 ist->decoder_opts = filter_codec_opts(o->g->codec_opts, par->codec_id, ic, st, ist->dec);
541
542 ist->dec_ctx = avcodec_alloc_context3(ist->dec);
543 if (!ist->dec_ctx) {
544 av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
545 exit_program(1);
546 }
547
548 ret = avcodec_parameters_to_context(ist->dec_ctx, par);
549 if (ret < 0) {
550 av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
551 exit_program(1);
552 }
553
554 switch (par->codec_type) {
555 case AVMEDIA_TYPE_VIDEO:
556 ist->resample_height = ist->dec_ctx->height;
557 ist->resample_width = ist->dec_ctx->width;
558 ist->resample_pix_fmt = ist->dec_ctx->pix_fmt;
559
560 MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
561 if (framerate && av_parse_video_rate(&ist->framerate,
562 framerate) < 0) {
563 av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
564 framerate);
565 exit_program(1);
566 }
567
568 MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
569 if (hwaccel) {
570 if (!strcmp(hwaccel, "none"))
571 ist->hwaccel_id = HWACCEL_NONE;
572 else if (!strcmp(hwaccel, "auto"))
573 ist->hwaccel_id = HWACCEL_AUTO;
574 else {
575 int i;
576 for (i = 0; hwaccels[i].name; i++) {
577 if (!strcmp(hwaccels[i].name, hwaccel)) {
578 ist->hwaccel_id = hwaccels[i].id;
579 break;
580 }
581 }
582
583 if (!ist->hwaccel_id) {
584 av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
585 hwaccel);
586 av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
587 for (i = 0; hwaccels[i].name; i++)
588 av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
589 av_log(NULL, AV_LOG_FATAL, "\n");
590 exit_program(1);
591 }
592 }
593 }
594
595 MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
596 if (hwaccel_device) {
597 ist->hwaccel_device = av_strdup(hwaccel_device);
598 if (!ist->hwaccel_device)
599 exit_program(1);
600 }
601
602 MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
603 hwaccel_output_format, ic, st);
604 if (hwaccel_output_format) {
605 ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
606 if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
607 av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
608 "format: %s", hwaccel_output_format);
609 }
610 } else {
611 ist->hwaccel_output_format = AV_PIX_FMT_NONE;
612 }
613
614 ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
615
616 break;
617 case AVMEDIA_TYPE_AUDIO:
618 guess_input_channel_layout(ist);
619
620 ist->resample_sample_fmt = ist->dec_ctx->sample_fmt;
621 ist->resample_sample_rate = ist->dec_ctx->sample_rate;
622 ist->resample_channels = ist->dec_ctx->channels;
623 ist->resample_channel_layout = ist->dec_ctx->channel_layout;
624
625 break;
626 case AVMEDIA_TYPE_DATA:
627 case AVMEDIA_TYPE_SUBTITLE:
628 case AVMEDIA_TYPE_ATTACHMENT:
629 case AVMEDIA_TYPE_UNKNOWN:
630 break;
631 default:
632 abort();
633 }
634 }
635 }
636
637 static void assert_file_overwrite(const char *filename)
638 {
639 if (file_overwrite && file_skip) {
640 fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
641 exit_program(1);
642 }
643
644 if (!file_overwrite &&
645 (!strchr(filename, ':') || filename[1] == ':' ||
646 av_strstart(filename, "file:", NULL))) {
647 if (avio_check(filename, 0) == 0) {
648 if (!using_stdin && !file_skip) {
649 fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
650 fflush(stderr);
651 if (!read_yesno()) {
652 fprintf(stderr, "Not overwriting - exiting\n");
653 exit_program(1);
654 }
655 }
656 else {
657 fprintf(stderr,"File '%s' already exists. Exiting.\n", filename);
658 exit_program(1);
659 }
660 }
661 }
662 }
663
664 static void dump_attachment(AVStream *st, const char *filename)
665 {
666 int ret;
667 AVIOContext *out = NULL;
668 AVDictionaryEntry *e;
669
670 if (!st->codecpar->extradata_size) {
671 av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
672 nb_input_files - 1, st->index);
673 return;
674 }
675 if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
676 filename = e->value;
677 if (!*filename) {
678 av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
679 "in stream #%d:%d.\n", nb_input_files - 1, st->index);
680 exit_program(1);
681 }
682
683 assert_file_overwrite(filename);
684
685 if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
686 av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
687 filename);
688 exit_program(1);
689 }
690
691 avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
692 avio_flush(out);
693 avio_close(out);
694 }
695
696 static int open_input_file(OptionsContext *o, const char *filename)
697 {
698 InputFile *f;
699 AVFormatContext *ic;
700 AVInputFormat *file_iformat = NULL;
701 int err, i, ret;
702 int64_t timestamp;
703 uint8_t buf[128];
704 AVDictionary **opts;
705 AVDictionary *unused_opts = NULL;
706 AVDictionaryEntry *e = NULL;
707 int orig_nb_streams; // number of streams before avformat_find_stream_info
708
709 if (o->format) {
710 if (!(file_iformat = av_find_input_format(o->format))) {
711 av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
712 exit_program(1);
713 }
714 }
715
716 if (!strcmp(filename, "-"))
717 filename = "pipe:";
718
719 using_stdin |= !strncmp(filename, "pipe:", 5) ||
720 !strcmp(filename, "/dev/stdin");
721
722 /* get default parameters from command line */
723 ic = avformat_alloc_context();
724 if (!ic) {
725 print_error(filename, AVERROR(ENOMEM));
726 exit_program(1);
727 }
728 if (o->nb_audio_sample_rate) {
729 snprintf(buf, sizeof(buf), "%d", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i);
730 av_dict_set(&o->g->format_opts, "sample_rate", buf, 0);
731 }
732 if (o->nb_audio_channels) {
733 /* because we set audio_channels based on both the "ac" and
734 * "channel_layout" options, we need to check that the specified
735 * demuxer actually has the "channels" option before setting it */
736 if (file_iformat && file_iformat->priv_class &&
737 av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
738 AV_OPT_SEARCH_FAKE_OBJ)) {
739 snprintf(buf, sizeof(buf), "%d",
740 o->audio_channels[o->nb_audio_channels - 1].u.i);
741 av_dict_set(&o->g->format_opts, "channels", buf, 0);
742 }
743 }
744 if (o->nb_frame_rates) {
745 /* set the format-level framerate option;
746 * this is important for video grabbers, e.g. x11 */
747 if (file_iformat && file_iformat->priv_class &&
748 av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
749 AV_OPT_SEARCH_FAKE_OBJ)) {
750 av_dict_set(&o->g->format_opts, "framerate",
751 o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
752 }
753 }
754 if (o->nb_frame_sizes) {
755 av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
756 }
757 if (o->nb_frame_pix_fmts)
758 av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
759
760 ic->flags |= AVFMT_FLAG_NONBLOCK;
761 ic->interrupt_callback = int_cb;
762
763 /* open the input file with generic Libav function */
764 err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
765 if (err < 0) {
766 print_error(filename, err);
767 exit_program(1);
768 }
769 assert_avoptions(o->g->format_opts);
770
771 /* apply forced codec ids */
772 for (i = 0; i < ic->nb_streams; i++)
773 choose_decoder(o, ic, ic->streams[i]);
774
775 /* Set AVCodecContext options for avformat_find_stream_info */
776 opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
777 orig_nb_streams = ic->nb_streams;
778
779 /* If not enough info to get the stream parameters, we decode the
780 first frames to get it. (used in mpeg case for example) */
781 ret = avformat_find_stream_info(ic, opts);
782 if (ret < 0) {
783 av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
784 avformat_close_input(&ic);
785 exit_program(1);
786 }
787
788 timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
789 /* add the stream start time */
790 if (ic->start_time != AV_NOPTS_VALUE)
791 timestamp += ic->start_time;
792
793 /* if seeking requested, we execute it */
794 if (o->start_time != AV_NOPTS_VALUE) {
795 ret = av_seek_frame(ic, -1, timestamp, AVSEEK_FLAG_BACKWARD);
796 if (ret < 0) {
797 av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
798 filename, (double)timestamp / AV_TIME_BASE);
799 }
800 }
801
802 /* update the current parameters so that they match the one of the input stream */
803 add_input_streams(o, ic);
804
805 /* dump the file content */
806 av_dump_format(ic, nb_input_files, filename, 0);
807
808 GROW_ARRAY(input_files, nb_input_files);
809 f = av_mallocz(sizeof(*f));
810 if (!f)
811 exit_program(1);
812 input_files[nb_input_files - 1] = f;
813
814 f->ctx = ic;
815 f->ist_index = nb_input_streams - ic->nb_streams;
816 f->start_time = o->start_time;
817 f->recording_time = o->recording_time;
818 f->ts_offset = o->input_ts_offset - (copy_ts ? 0 : timestamp);
819 f->nb_streams = ic->nb_streams;
820 f->rate_emu = o->rate_emu;
821 f->accurate_seek = o->accurate_seek;
822 f->loop = o->loop;
823 f->duration = 0;
824 f->time_base = (AVRational){ 1, 1 };
825
826 /* check if all codec options have been used */
827 unused_opts = strip_specifiers(o->g->codec_opts);
828 for (i = f->ist_index; i < nb_input_streams; i++) {
829 e = NULL;
830 while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
831 AV_DICT_IGNORE_SUFFIX)))
832 av_dict_set(&unused_opts, e->key, NULL, 0);
833 }
834
835 e = NULL;
836 while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
837 const AVClass *class = avcodec_get_class();
838 const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
839 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
840 if (!option)
841 continue;
842 if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
843 av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
844 "input file #%d (%s) is not a decoding option.\n", e->key,
845 option->help ? option->help : "", nb_input_files - 1,
846 filename);
847 exit_program(1);
848 }
849
850 av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
851 "input file #%d (%s) has not been used for any stream. The most "
852 "likely reason is either wrong type (e.g. a video option with "
853 "no video streams) or that it is a private option of some decoder "
854 "which was not actually used for any stream.\n", e->key,
855 option->help ? option->help : "", nb_input_files - 1, filename);
856 }
857 av_dict_free(&unused_opts);
858
859 for (i = 0; i < o->nb_dump_attachment; i++) {
860 int j;
861
862 for (j = 0; j < ic->nb_streams; j++) {
863 AVStream *st = ic->streams[j];
864
865 if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
866 dump_attachment(st, o->dump_attachment[i].u.str);
867 }
868 }
869
870 for (i = 0; i < orig_nb_streams; i++)
871 av_dict_free(&opts[i]);
872 av_freep(&opts);
873
874 return 0;
875 }
876
877 static uint8_t *get_line(AVIOContext *s)
878 {
879 AVIOContext *line;
880 uint8_t *buf;
881 char c;
882
883 if (avio_open_dyn_buf(&line) < 0) {
884 av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
885 exit_program(1);
886 }
887
888 while ((c = avio_r8(s)) && c != '\n')
889 avio_w8(line, c);
890 avio_w8(line, 0);
891 avio_close_dyn_buf(line, &buf);
892
893 return buf;
894 }
895
896 static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
897 {
898 int i, ret = -1;
899 char filename[1000];
900 const char *base[3] = { getenv("AVCONV_DATADIR"),
901 getenv("HOME"),
902 AVCONV_DATADIR,
903 };
904
905 for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
906 if (!base[i])
907 continue;
908 if (codec_name) {
909 snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
910 i != 1 ? "" : "/.avconv", codec_name, preset_name);
911 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
912 }
913 if (ret < 0) {
914 snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
915 i != 1 ? "" : "/.avconv", preset_name);
916 ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
917 }
918 }
919 return ret;
920 }
921
922 static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
923 {
924 enum AVMediaType type = ost->st->codecpar->codec_type;
925 char *codec_name = NULL;
926
927 if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
928 MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
929 if (!codec_name) {
930 ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
931 NULL, ost->st->codecpar->codec_type);
932 ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
933 if (!ost->enc) {
934 av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
935 "output stream #%d:%d. Default encoder for format %s is "
936 "probably disabled. Please choose an encoder manually.\n",
937 ost->file_index, ost->index, s->oformat->name);
938 return AVERROR_ENCODER_NOT_FOUND;
939 }
940 } else if (!strcmp(codec_name, "copy"))
941 ost->stream_copy = 1;
942 else {
943 ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
944 ost->st->codecpar->codec_id = ost->enc->id;
945 }
946
947 ost->encoding_needed = !ost->stream_copy;
948 } else {
949 /* no encoding supported for other media types */
950 ost->stream_copy = 1;
951 ost->encoding_needed = 0;
952 }
953
954 return 0;
955 }
956
957 static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
958 {
959 OutputStream *ost;
960 AVStream *st = avformat_new_stream(oc, NULL);
961 int idx = oc->nb_streams - 1, ret = 0;
962 const char *bsfs = NULL;
963 char *next, *codec_tag = NULL;
964 double qscale = -1;
965
966 if (!st) {
967 av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
968 exit_program(1);
969 }
970
971 if (oc->nb_streams - 1 < o->nb_streamid_map)
972 st->id = o->streamid_map[oc->nb_streams - 1];
973
974 GROW_ARRAY(output_streams, nb_output_streams);
975 if (!(ost = av_mallocz(sizeof(*ost))))
976 exit_program(1);
977 output_streams[nb_output_streams - 1] = ost;
978
979 ost->file_index = nb_output_files - 1;
980 ost->index = idx;
981 ost->st = st;
982 st->codecpar->codec_type = type;
983
984 ret = choose_encoder(o, oc, ost);
985 if (ret < 0) {
986 av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
987 "%d:%d\n", ost->file_index, ost->index);
988 exit_program(1);
989 }
990
991 ost->enc_ctx = avcodec_alloc_context3(ost->enc);
992 if (!ost->enc_ctx) {
993 av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
994 exit_program(1);
995 }
996 ost->enc_ctx->codec_type = type;
997
998 if (ost->enc) {
999 AVIOContext *s = NULL;
1000 char *buf = NULL, *arg = NULL, *preset = NULL;
1001
1002 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
1003
1004 MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
1005 if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
1006 do {
1007 buf = get_line(s);
1008 if (!buf[0] || buf[0] == '#') {
1009 av_free(buf);
1010 continue;
1011 }
1012 if (!(arg = strchr(buf, '='))) {
1013 av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
1014 exit_program(1);
1015 }
1016 *arg++ = 0;
1017 av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
1018 av_free(buf);
1019 } while (!s->eof_reached);
1020 avio_close(s);
1021 }
1022 if (ret) {
1023 av_log(NULL, AV_LOG_FATAL,
1024 "Preset %s specified for stream %d:%d, but could not be opened.\n",
1025 preset, ost->file_index, ost->index);
1026 exit_program(1);
1027 }
1028 } else {
1029 ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
1030 }
1031
1032 ost->max_frames = INT64_MAX;
1033 MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
1034
1035 MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
1036 while (bsfs && *bsfs) {
1037 const AVBitStreamFilter *filter;
1038 char *bsf;
1039
1040 bsf = av_get_token(&bsfs, ",");
1041 if (!bsf)
1042 exit_program(1);
1043
1044 filter = av_bsf_get_by_name(bsf);
1045 if (!filter) {
1046 av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf);
1047 exit_program(1);
1048 }
1049 av_freep(&bsf);
1050
1051 ost->bitstream_filters = av_realloc_array(ost->bitstream_filters,
1052 ost->nb_bitstream_filters + 1,
1053 sizeof(*ost->bitstream_filters));
1054 if (!ost->bitstream_filters)
1055 exit_program(1);
1056
1057 ost->bitstream_filters[ost->nb_bitstream_filters++] = filter;
1058 if (*bsfs)
1059 bsfs++;
1060 }
1061
1062 MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
1063 if (codec_tag) {
1064 uint32_t tag = strtol(codec_tag, &next, 0);
1065 if (*next)
1066 tag = AV_RL32(codec_tag);
1067 ost->enc_ctx->codec_tag = tag;
1068 }
1069
1070 MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
1071 if (qscale >= 0) {
1072 ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
1073 ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
1074 }
1075
1076 ost->max_muxing_queue_size = 128;
1077 MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
1078 ost->max_muxing_queue_size *= sizeof(AVPacket);
1079
1080 if (oc->oformat->flags & AVFMT_GLOBALHEADER)
1081 ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
1082
1083 av_opt_get_int(o->g->sws_opts, "sws_flags", 0, &ost->sws_flags);
1084
1085 av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
1086
1087 ost->pix_fmts[0] = ost->pix_fmts[1] = AV_PIX_FMT_NONE;
1088 ost->last_mux_dts = AV_NOPTS_VALUE;
1089
1090 ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
1091 if (!ost->muxing_queue)
1092 exit_program(1);
1093
1094 return ost;
1095 }
1096
1097 static void parse_matrix_coeffs(uint16_t *dest, const char *str)
1098 {
1099 int i;
1100 const char *p = str;
1101 for (i = 0;; i++) {
1102 dest[i] = atoi(p);
1103 if (i == 63)
1104 break;
1105 p = strchr(p, ',');
1106 if (!p) {
1107 av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
1108 exit_program(1);
1109 }
1110 p++;
1111 }
1112 }
1113
1114 /* read file contents into a string */
1115 static uint8_t *read_file(const char *filename)
1116 {
1117 AVIOContext *pb = NULL;
1118 AVIOContext *dyn_buf = NULL;
1119 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1120 uint8_t buf[1024], *str;
1121
1122 if (ret < 0) {
1123 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1124 return NULL;
1125 }
1126
1127 ret = avio_open_dyn_buf(&dyn_buf);
1128 if (ret < 0) {
1129 avio_closep(&pb);
1130 return NULL;
1131 }
1132 while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
1133 avio_write(dyn_buf, buf, ret);
1134 avio_w8(dyn_buf, 0);
1135 avio_closep(&pb);
1136
1137 ret = avio_close_dyn_buf(dyn_buf, &str);
1138 if (ret < 0)
1139 return NULL;
1140 return str;
1141 }
1142
1143 static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
1144 OutputStream *ost)
1145 {
1146 AVStream *st = ost->st;
1147 char *filter = NULL, *filter_script = NULL;
1148
1149 MATCH_PER_STREAM_OPT(filter_scripts, str, filter_script, oc, st);
1150 MATCH_PER_STREAM_OPT(filters, str, filter, oc, st);
1151
1152 if (filter_script && filter) {
1153 av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
1154 "output stream #%d:%d.\n", nb_output_files, st->index);
1155 exit_program(1);
1156 }
1157
1158 if (filter_script)
1159 return read_file(filter_script);
1160 else if (filter)
1161 return av_strdup(filter);
1162
1163 return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
1164 "null" : "anull");
1165 }
1166
1167 static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc)
1168 {
1169 AVStream *st;
1170 OutputStream *ost;
1171 AVCodecContext *video_enc;
1172 char *frame_aspect_ratio = NULL;
1173
1174 ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO);
1175 st = ost->st;
1176 video_enc = ost->enc_ctx;
1177
1178 MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
1179 if (frame_aspect_ratio)
1180 ost->frame_aspect_ratio = parse_frame_aspect_ratio(frame_aspect_ratio);
1181
1182 if (!ost->stream_copy) {
1183 const char *p = NULL;
1184 char *frame_rate = NULL, *frame_size = NULL;
1185 char *frame_pix_fmt = NULL;
1186 char *intra_matrix = NULL, *inter_matrix = NULL;
1187 int do_pass = 0;
1188 int i;
1189
1190 MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
1191 if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
1192 av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
1193 exit_program(1);
1194 }
1195
1196 MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
1197 if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
1198 av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
1199 exit_program(1);
1200 }
1201
1202 MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
1203 if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
1204 av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
1205 exit_program(1);
1206 }
1207 st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
1208
1209 MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
1210 if (intra_matrix) {
1211 if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
1212 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
1213 exit_program(1);
1214 }
1215 parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
1216 }
1217 MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
1218 if (inter_matrix) {
1219 if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
1220 av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
1221 exit_program(1);
1222 }
1223 parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
1224 }
1225
1226 MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
1227 for (i = 0; p; i++) {
1228 int start, end, q;
1229 int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
1230 if (e != 3) {
1231 av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
1232 exit_program(1);
1233 }
1234 video_enc->rc_override =
1235 av_realloc(video_enc->rc_override,
1236 sizeof(RcOverride) * (i + 1));
1237 if (!video_enc->rc_override) {
1238 av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
1239 exit_program(1);
1240 }
1241 video_enc->rc_override[i].start_frame = start;
1242 video_enc->rc_override[i].end_frame = end;
1243 if (q > 0) {
1244 video_enc->rc_override[i].qscale = q;
1245 video_enc->rc_override[i].quality_factor = 1.0;
1246 }
1247 else {
1248 video_enc->rc_override[i].qscale = 0;
1249 video_enc->rc_override[i].quality_factor = -q/100.0;
1250 }
1251 p = strchr(p, '/');
1252 if (p) p++;
1253 }
1254 video_enc->rc_override_count = i;
1255 video_enc->intra_dc_precision = intra_dc_precision - 8;
1256
1257 /* two pass mode */
1258 MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
1259 if (do_pass) {
1260 if (do_pass == 1) {
1261 video_enc->flags |= AV_CODEC_FLAG_PASS1;
1262 } else {
1263 video_enc->flags |= AV_CODEC_FLAG_PASS2;
1264 }
1265 }
1266
1267 MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
1268 if (ost->logfile_prefix &&
1269 !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
1270 exit_program(1);
1271
1272 if (do_pass) {
1273 char logfilename[1024];
1274 FILE *f;
1275
1276 snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
1277 ost->logfile_prefix ? ost->logfile_prefix :
1278 DEFAULT_PASS_LOGFILENAME_PREFIX,
1279 i);
1280 if (!strcmp(ost->enc->name, "libx264")) {
1281 av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
1282 } else {
1283 if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
1284 f = fopen(logfilename, "wb");
1285 if (!f) {
1286 av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n",
1287 logfilename, strerror(errno));
1288 exit_program(1);
1289 }
1290 ost->logfile = f;
1291 } else {
1292 char *logbuffer = read_file(logfilename);
1293
1294 if (!logbuffer) {
1295 av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
1296 logfilename);
1297 exit_program(1);
1298 }
1299 video_enc->stats_in = logbuffer;
1300 }
1301 }
1302 }
1303
1304 MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
1305 if (ost->forced_keyframes)
1306 ost->forced_keyframes = av_strdup(ost->forced_keyframes);
1307
1308 MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
1309
1310 ost->top_field_first = -1;
1311 MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
1312
1313
1314 ost->avfilter = get_ost_filters(o, oc, ost);
1315 if (!ost->avfilter)
1316 exit_program(1);
1317 } else {
1318 MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
1319 }
1320
1321 return ost;
1322 }
1323
1324 static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc)
1325 {
1326 AVStream *st;
1327 OutputStream *ost;
1328 AVCodecContext *audio_enc;
1329
1330 ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO);
1331 st = ost->st;
1332
1333 audio_enc = ost->enc_ctx;
1334 audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
1335
1336 if (!ost->stream_copy) {
1337 char *sample_fmt = NULL;
1338
1339 MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
1340
1341 MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
1342 if (sample_fmt &&
1343 (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
1344 av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
1345 exit_program(1);
1346 }
1347
1348 MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
1349
1350 ost->avfilter = get_ost_filters(o, oc, ost);
1351 if (!ost->avfilter)
1352 exit_program(1);
1353 }
1354
1355 return ost;
1356 }
1357
1358 static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc)
1359 {
1360 OutputStream *ost;
1361
1362 ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA);
1363 if (!ost->stream_copy) {
1364 av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
1365 exit_program(1);
1366 }
1367
1368 return ost;
1369 }
1370
1371 static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc)
1372 {
1373 OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT);
1374 ost->stream_copy = 1;
1375 ost->finished = 1;
1376 return ost;
1377 }
1378
1379 static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc)
1380 {
1381 OutputStream *ost;
1382 AVCodecContext *subtitle_enc;
1383
1384 ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE);
1385 subtitle_enc = ost->enc_ctx;
1386
1387 subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
1388
1389 return ost;
1390 }
1391
1392 /* arg format is "output-stream-index:streamid-value". */
1393 static int opt_streamid(void *optctx, const char *opt, const char *arg)
1394 {
1395 OptionsContext *o = optctx;
1396 int idx;
1397 char *p;
1398 char idx_str[16];
1399
1400 av_strlcpy(idx_str, arg, sizeof(idx_str));
1401 p = strchr(idx_str, ':');
1402 if (!p) {
1403 av_log(NULL, AV_LOG_FATAL,
1404 "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
1405 arg, opt);
1406 exit_program(1);
1407 }
1408 *p++ = '\0';
1409 idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, INT_MAX);
1410 o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
1411 o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
1412 return 0;
1413 }
1414
1415 static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
1416 {
1417 AVFormatContext *is = ifile->ctx;
1418 AVFormatContext *os = ofile->ctx;
1419 AVChapter **tmp;
1420 int i;
1421
1422 tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
1423 if (!tmp)
1424 return AVERROR(ENOMEM);
1425 os->chapters = tmp;
1426
1427 for (i = 0; i < is->nb_chapters; i++) {
1428 AVChapter *in_ch = is->chapters[i], *out_ch;
1429 int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
1430 int64_t ts_off = av_rescale_q(start_time - ifile->ts_offset,
1431 AV_TIME_BASE_Q, in_ch->time_base);
1432 int64_t rt = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
1433 av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
1434
1435
1436 if (in_ch->end < ts_off)
1437 continue;
1438 if (rt != INT64_MAX && in_ch->start > rt + ts_off)
1439 break;
1440
1441 out_ch = av_mallocz(sizeof(AVChapter));
1442 if (!out_ch)
1443 return AVERROR(ENOMEM);
1444
1445 out_ch->id = in_ch->id;
1446 out_ch->time_base = in_ch->time_base;
1447 out_ch->start = FFMAX(0, in_ch->start - ts_off);
1448 out_ch->end = FFMIN(rt, in_ch->end - ts_off);
1449
1450 if (copy_metadata)
1451 av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
1452
1453 os->chapters[os->nb_chapters++] = out_ch;
1454 }
1455 return 0;
1456 }
1457
1458 static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
1459 AVFormatContext *oc)
1460 {
1461 OutputStream *ost;
1462
1463 switch (ofilter->type) {
1464 case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc); break;
1465 case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc); break;
1466 default:
1467 av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
1468 "currently.\n");
1469 exit_program(1);
1470 }
1471
1472 ost->source_index = -1;
1473 ost->filter = ofilter;
1474
1475 ofilter->ost = ost;
1476 ofilter->format = -1;
1477
1478 if (ost->stream_copy) {
1479 av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
1480 "which is fed from a complex filtergraph. Filtering and streamcopy "
1481 "cannot be used together.\n", ost->file_index, ost->index);
1482 exit_program(1);
1483 }
1484
1485 avfilter_inout_free(&ofilter->out_tmp);
1486 }
1487
1488 static int init_complex_filters(void)
1489 {
1490 int i, ret = 0;
1491
1492 for (i = 0; i < nb_filtergraphs; i++) {
1493 ret = init_complex_filtergraph(filtergraphs[i]);
1494 if (ret < 0)
1495 return ret;
1496 }
1497 return 0;
1498 }
1499
1500 static int configure_complex_filters(void)
1501 {
1502 int i, j, ret = 0;
1503
1504 for (i = 0; i < nb_filtergraphs; i++) {
1505 FilterGraph *fg = filtergraphs[i];
1506
1507 if (filtergraph_is_simple(fg))
1508 continue;
1509
1510 for (j = 0; j < fg->nb_inputs; j++) {
1511 ret = ifilter_parameters_from_decoder(fg->inputs[j],
1512 fg->inputs[j]->ist->dec_ctx);
1513 if (ret < 0) {
1514 av_log(NULL, AV_LOG_ERROR,
1515 "Error initializing filtergraph %d input %d\n", i, j);
1516 return ret;
1517 }
1518 }
1519
1520 ret = configure_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 /* configure the complex filtergraphs */
2475 ret = configure_complex_filters();
2476 if (ret < 0) {
2477 av_log(NULL, AV_LOG_FATAL, "Error configuring complex filters.\n");
2478 goto fail;
2479 }
2480
2481 fail:
2482 uninit_parse_context(&octx);
2483 if (ret < 0) {
2484 av_strerror(ret, error, sizeof(error));
2485 av_log(NULL, AV_LOG_FATAL, "%s\n", error);
2486 }
2487 return ret;
2488 }
2489
2490 #define OFFSET(x) offsetof(OptionsContext, x)
2491 const OptionDef options[] = {
2492 /* main options */
2493 #include "cmdutils_common_opts.h"
2494 { "f", HAS_ARG | OPT_STRING | OPT_OFFSET |
2495 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(format) },
2496 "force format", "fmt" },
2497 { "y", OPT_BOOL, { &file_overwrite },
2498 "overwrite output files" },
2499 { "n", OPT_BOOL, { &file_skip },
2500 "never overwrite output files" },
2501 { "c", HAS_ARG | OPT_STRING | OPT_SPEC |
2502 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2503 "codec name", "codec" },
2504 { "codec", HAS_ARG | OPT_STRING | OPT_SPEC |
2505 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(codec_names) },
2506 "codec name", "codec" },
2507 { "pre", HAS_ARG | OPT_STRING | OPT_SPEC |
2508 OPT_OUTPUT, { .off = OFFSET(presets) },
2509 "preset name", "preset" },
2510 { "map", HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2511 OPT_OUTPUT, { .func_arg = opt_map },
2512 "set input stream mapping",
2513 "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
2514 { "map_metadata", HAS_ARG | OPT_STRING | OPT_SPEC |
2515 OPT_OUTPUT, { .off = OFFSET(metadata_map) },
2516 "set metadata information of outfile from infile",
2517 "outfile[,metadata]:infile[,metadata]" },
2518 { "map_chapters", HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
2519 OPT_OUTPUT, { .off = OFFSET(chapters_input_file) },
2520 "set chapters mapping", "input_file_index" },
2521 { "t", HAS_ARG | OPT_TIME | OPT_OFFSET |
2522 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(recording_time) },
2523 "record or transcode \"duration\" seconds of audio/video",
2524 "duration" },
2525 { "fs", HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
2526 "set the limit file size in bytes", "limit_size" },
2527 { "ss", HAS_ARG | OPT_TIME | OPT_OFFSET |
2528 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(start_time) },
2529 "set the start time offset", "time_off" },
2530 { "accurate_seek", OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
2531 OPT_INPUT, { .off = OFFSET(accurate_seek) },
2532 "enable/disable accurate seeking with -ss" },
2533 { "itsoffset", HAS_ARG | OPT_TIME | OPT_OFFSET |
2534 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(input_ts_offset) },
2535 "set the input ts offset", "time_off" },
2536 { "itsscale", HAS_ARG | OPT_DOUBLE | OPT_SPEC |
2537 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(ts_scale) },
2538 "set the input ts scale", "scale" },
2539 { "metadata", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
2540 "add metadata", "string=string" },
2541 { "dframes", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2542 OPT_OUTPUT, { .func_arg = opt_data_frames },
2543 "set the number of data frames to record", "number" },
2544 { "benchmark", OPT_BOOL | OPT_EXPERT, { &do_benchmark },
2545 "add timings for benchmarking" },
2546 { "timelimit", HAS_ARG | OPT_EXPERT, { .func_arg = opt_timelimit },
2547 "set max runtime in seconds", "limit" },
2548 { "dump", OPT_BOOL | OPT_EXPERT, { &do_pkt_dump },
2549 "dump each input packet" },
2550 { "hex", OPT_BOOL | OPT_EXPERT, { &do_hex_dump },
2551 "when dumping packets, also dump the payload" },
2552 { "re", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2553 OPT_INPUT, { .off = OFFSET(rate_emu) },
2554 "read input at native frame rate", "" },
2555 { "target", HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_target },
2556 "specify target file type (\"vcd\", \"svcd\", \"dvd\","
2557 " \"dv\", \"dv50\", \"pal-vcd\", \"ntsc-svcd\", ...)", "type" },
2558 { "vsync", HAS_ARG | OPT_EXPERT, { opt_vsync },
2559 "video sync method", "" },
2560 { "async", HAS_ARG | OPT_INT | OPT_EXPERT, { &audio_sync_method },
2561 "audio sync method", "" },
2562 { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &audio_drift_threshold },
2563 "audio drift threshold", "threshold" },
2564 { "copyts", OPT_BOOL | OPT_EXPERT, { &copy_ts },
2565 "copy timestamps" },
2566 { "copytb", OPT_BOOL | OPT_EXPERT, { &copy_tb },
2567 "copy input stream time base when stream copying" },
2568 { "shortest", OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
2569 OPT_OUTPUT, { .off = OFFSET(shortest) },
2570 "finish encoding within shortest input" },
2571 { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT, { &dts_delta_threshold },
2572 "timestamp discontinuity delta threshold", "threshold" },
2573 { "xerror", OPT_BOOL | OPT_EXPERT, { &exit_on_error },
2574 "exit on error", "error" },
2575 { "copyinkf", OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2576 OPT_OUTPUT, { .off = OFFSET(copy_initial_nonkeyframes) },
2577 "copy initial non-keyframes" },
2578 { "frames", OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
2579 "set the number of frames to record", "number" },
2580 { "tag", OPT_STRING | HAS_ARG | OPT_SPEC |
2581 OPT_EXPERT | OPT_OUTPUT | OPT_INPUT, { .off = OFFSET(codec_tags) },
2582 "force codec tag/fourcc", "fourcc/tag" },
2583 { "q", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2584 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2585 "use fixed quality scale (VBR)", "q" },
2586 { "qscale", HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
2587 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(qscale) },
2588 "use fixed quality scale (VBR)", "q" },
2589 { "filter", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
2590 "set stream filterchain", "filter_list" },
2591 { "filter_script", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
2592 "read stream filtergraph description from a file", "filename" },
2593 { "filter_complex", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex },
2594 "create a complex filtergraph", "graph_description" },
2595 { "filter_complex_script", HAS_ARG | OPT_EXPERT, { .func_arg = opt_filter_complex_script },
2596 "read complex filtergraph description from a file", "filename" },
2597 { "stats", OPT_BOOL, { &print_stats },
2598 "print progress report during encoding", },
2599 { "attach", HAS_ARG | OPT_PERFILE | OPT_EXPERT |
2600 OPT_OUTPUT, { .func_arg = opt_attach },
2601 "add an attachment to the output file", "filename" },
2602 { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
2603 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(dump_attachment) },
2604 "extract an attachment into a file", "filename" },
2605 { "loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
2606 OPT_OFFSET, { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
2607
2608 /* video options */
2609 { "vframes", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_frames },
2610 "set the number of video frames to record", "number" },
2611 { "r", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2612 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_rates) },
2613 "set frame rate (Hz value, fraction or abbreviation)", "rate" },
2614 { "s", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2615 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_sizes) },
2616 "set frame size (WxH or abbreviation)", "size" },
2617 { "aspect", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_SPEC |
2618 OPT_OUTPUT, { .off = OFFSET(frame_aspect_ratios) },
2619 "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
2620 { "pix_fmt", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2621 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(frame_pix_fmts) },
2622 "set pixel format", "format" },
2623 { "vn", OPT_VIDEO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(video_disable) },
2624 "disable video" },
2625 { "vdt", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &video_discard },
2626 "discard threshold", "n" },
2627 { "rc_override", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2628 OPT_OUTPUT, { .off = OFFSET(rc_overrides) },
2629 "rate control override for specific intervals", "override" },
2630 { "vcodec", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_INPUT |
2631 OPT_OUTPUT, { .func_arg = opt_video_codec },
2632 "force video codec ('copy' to copy stream)", "codec" },
2633 { "pass", OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT, { .off = OFFSET(pass) },
2634 "select the pass number (1 or 2)", "n" },
2635 { "passlogfile", OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
2636 OPT_OUTPUT, { .off = OFFSET(passlogfiles) },
2637 "select two pass log file name prefix", "prefix" },
2638 { "vstats", OPT_VIDEO | OPT_EXPERT , { &opt_vstats },
2639 "dump video coding statistics to file" },
2640 { "vstats_file", OPT_VIDEO | HAS_ARG | OPT_EXPERT , { opt_vstats_file },
2641 "dump video coding statistics to file", "file" },
2642 { "vf", OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_video_filters },
2643 "video filters", "filter list" },
2644 { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2645 OPT_OUTPUT, { .off = OFFSET(intra_matrices) },
2646 "specify intra matrix coeffs", "matrix" },
2647 { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_STRING | OPT_SPEC |
2648 OPT_OUTPUT, { .off = OFFSET(inter_matrices) },
2649 "specify inter matrix coeffs", "matrix" },
2650 { "top", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_INT| OPT_SPEC |
2651 OPT_OUTPUT, { .off = OFFSET(top_field_first) },
2652 "top=1/bottom=0/auto=-1 field first", "" },
2653 { "dc", OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT , { &intra_dc_precision },
2654 "intra_dc_precision", "precision" },
2655 { "vtag", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2656 OPT_OUTPUT, { .func_arg = opt_video_tag },
2657 "force video tag/fourcc", "fourcc/tag" },
2658 { "qphist", OPT_VIDEO | OPT_BOOL | OPT_EXPERT , { &qp_hist },
2659 "show QP histogram" },
2660 { "force_fps", OPT_VIDEO | OPT_BOOL | OPT_EXPERT | OPT_SPEC |
2661 OPT_OUTPUT, { .off = OFFSET(force_fps) },
2662 "force the selected framerate, disable the best supported framerate selection" },
2663 { "streamid", OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2664 OPT_OUTPUT, { .func_arg = opt_streamid },
2665 "set the value of an outfile streamid", "streamIndex:value" },
2666 { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2667 OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(forced_key_frames) },
2668 "force key frames at specified timestamps", "timestamps" },
2669 { "hwaccel", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2670 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccels) },
2671 "use HW accelerated decoding", "hwaccel name" },
2672 { "hwaccel_device", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2673 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_devices) },
2674 "select a device for HW acceleration", "devicename" },
2675 { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
2676 OPT_SPEC | OPT_INPUT, { .off = OFFSET(hwaccel_output_formats) },
2677 "select output format used with HW accelerated decoding", "format" },
2678
2679 { "hwaccels", OPT_EXIT, { .func_arg = show_hwaccels },
2680 "show available HW acceleration methods" },
2681 { "autorotate", HAS_ARG | OPT_BOOL | OPT_SPEC |
2682 OPT_EXPERT | OPT_INPUT, { .off = OFFSET(autorotate) },
2683 "automatically insert correct rotate filters" },
2684 { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT, { &hwaccel_lax_profile_check},
2685 "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
2686
2687 /* audio options */
2688 { "aframes", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_frames },
2689 "set the number of audio frames to record", "number" },
2690 { "aq", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_qscale },
2691 "set audio quality (codec-specific)", "quality", },
2692 { "ar", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2693 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_sample_rate) },
2694 "set audio sampling rate (in Hz)", "rate" },
2695 { "ac", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC |
2696 OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(audio_channels) },
2697 "set number of audio channels", "channels" },
2698 { "an", OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(audio_disable) },
2699 "disable audio" },
2700 { "acodec", OPT_AUDIO | HAS_ARG | OPT_PERFILE |
2701 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_audio_codec },
2702 "force audio codec ('copy' to copy stream)", "codec" },
2703 { "atag", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2704 OPT_OUTPUT, { .func_arg = opt_audio_tag },
2705 "force audio tag/fourcc", "fourcc/tag" },
2706 { "vol", OPT_AUDIO | HAS_ARG | OPT_INT, { &audio_volume },
2707 "change audio volume (256=normal)" , "volume" },
2708 { "sample_fmt", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_SPEC |
2709 OPT_STRING | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(sample_fmts) },
2710 "set sample format", "format" },
2711 { "channel_layout", OPT_AUDIO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
2712 OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_channel_layout },
2713 "set channel layout", "layout" },
2714 { "af", OPT_AUDIO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_audio_filters },
2715 "audio filters", "filter list" },
2716
2717 /* subtitle options */
2718 { "sn", OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
2719 "disable subtitle" },
2720 { "scodec", OPT_SUBTITLE | HAS_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
2721 "force subtitle codec ('copy' to copy stream)", "codec" },
2722 { "stag", OPT_SUBTITLE | HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_subtitle_tag }
2723 , "force subtitle tag/fourcc", "fourcc/tag" },
2724
2725 /* grab options */
2726 { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
2727
2728 /* muxer options */
2729 { "muxdelay", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
2730 "set the maximum demux-decode delay", "seconds" },
2731 { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
2732 "set the initial demux-decode delay", "seconds" },
2733
2734 { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
2735 "A comma-separated list of bitstream filters", "bitstream_filters" },
2736
2737 { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
2738 "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
2739
2740 /* data codec support */
2741 { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
2742 "force data codec ('copy' to copy stream)", "codec" },
2743
2744 #if CONFIG_VAAPI
2745 { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
2746 "set VAAPI hardware device (DRM path or X11 display name)", "device" },
2747 #endif
2748
2749 { NULL, },
2750 };