-
Notifications
You must be signed in to change notification settings - Fork 3
/
av.c
2909 lines (2629 loc) · 88.4 KB
/
av.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2013 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Chung Leong <cleong@cal.berkeley.edu> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef _MSC_VER
int isnan(double x) {
return x != x;
}
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_av.h"
ZEND_DECLARE_MODULE_GLOBALS(av)
/* True global resources - no need for thread safety here */
static int le_av_file;
static int le_av_strm;
static int le_gd = -1;
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_file_open, 0, 0, 2)
ZEND_ARG_INFO(0, path)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_file_close, 0, 0, 1)
ZEND_ARG_INFO(0, file)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_file_seek, 0, 0, 2)
ZEND_ARG_INFO(0, file)
ZEND_ARG_INFO(0, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_file_eof, 0, 0, 1)
ZEND_ARG_INFO(0, file)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_file_stat, 0, 0, 1)
ZEND_ARG_INFO(0, stream)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_file_optimize, 0, 0, 1)
ZEND_ARG_INFO(0, path)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_open, 0, 0, 2)
ZEND_ARG_INFO(0, file)
ZEND_ARG_INFO(0, id)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_close, 0, 0, 1)
ZEND_ARG_INFO(0, file)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_read_image, 0, 0, 2)
ZEND_ARG_INFO(0, stream)
ZEND_ARG_INFO(0, image)
ZEND_ARG_INFO(1, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_read_pcm, 0, 0, 2)
ZEND_ARG_INFO(0, stream)
ZEND_ARG_INFO(1, buffer)
ZEND_ARG_INFO(1, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_read_subtitle, 0, 0, 3)
ZEND_ARG_INFO(0, stream)
ZEND_ARG_INFO(1, buffer)
ZEND_ARG_INFO(1, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_write_image, 0, 0, 2)
ZEND_ARG_INFO(0, stream)
ZEND_ARG_INFO(0, image)
ZEND_ARG_INFO(0, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_write_pcm, 0, 0, 2)
ZEND_ARG_INFO(0, stream)
ZEND_ARG_INFO(0, buffer)
ZEND_ARG_INFO(0, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_stream_write_subtitle, 0, 0, 3)
ZEND_ARG_INFO(0, stream)
ZEND_ARG_INFO(0, buffer)
ZEND_ARG_INFO(0, time)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_get_encoders, 0, 0, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_av_get_decoders, 0, 0, 0)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ av_functions[]
*
* Every user visible function must have an entry in av_functions[].
*/
const zend_function_entry av_functions[] = {
PHP_FE(av_file_open, arginfo_av_file_open)
PHP_FE(av_file_close, arginfo_av_file_close)
PHP_FE(av_file_seek, arginfo_av_file_seek)
PHP_FE(av_file_eof, arginfo_av_file_eof)
PHP_FE(av_file_stat, arginfo_av_file_stat)
PHP_FE(av_file_optimize, arginfo_av_file_optimize)
PHP_FE(av_stream_open, arginfo_av_stream_open)
PHP_FE(av_stream_close, arginfo_av_stream_close)
PHP_FE(av_stream_read_image, arginfo_av_stream_read_image)
PHP_FE(av_stream_read_pcm, arginfo_av_stream_read_pcm)
PHP_FE(av_stream_read_subtitle, arginfo_av_stream_read_subtitle)
PHP_FE(av_stream_write_image, arginfo_av_stream_write_image)
PHP_FE(av_stream_write_pcm, arginfo_av_stream_write_pcm)
PHP_FE(av_stream_write_subtitle, arginfo_av_stream_write_subtitle)
PHP_FE(av_get_encoders, arginfo_av_get_encoders)
PHP_FE(av_get_decoders, arginfo_av_get_decoders)
#ifdef PHP_FE_END
PHP_FE_END /* Must be the last line in av_functions[] */
#else
{NULL, NULL, NULL}
#endif
};
/* }}} */
/* {{{ av_module_entry
*/
zend_module_entry av_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
"av",
av_functions,
PHP_MINIT(av),
PHP_MSHUTDOWN(av),
PHP_RINIT(av), /* Replace with NULL if there's nothing to do at request start */
PHP_RSHUTDOWN(av), /* Replace with NULL if there's nothing to do at request end */
PHP_MINFO(av),
#if ZEND_MODULE_API_NO >= 20010901
STRING(AV_MAJOR_VERSION) "." STRING(AV_MINOR_VERSION), /* Replace with version number for your extension */
#endif
STANDARD_MODULE_PROPERTIES
};
/* }}} */
#ifdef COMPILE_DL_AV
ZEND_GET_MODULE(av)
#endif
/* {{{ PHP_INI
*/
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("av.optimize_output", "1", PHP_INI_ALL, OnUpdateBool, optimize_output, zend_av_globals, av_globals)
STD_PHP_INI_ENTRY("av.verbose_reporting", "0", PHP_INI_ALL, OnUpdateBool, verbose_reporting, zend_av_globals, av_globals)
STD_PHP_INI_ENTRY("av.max_threads_per_stream", "2", PHP_INI_SYSTEM, OnUpdateLong, max_threads_per_stream, zend_av_globals, av_globals)
STD_PHP_INI_ENTRY("av.threads_per_video_stream", "2", PHP_INI_ALL, OnUpdateLong, threads_per_video_stream, zend_av_globals, av_globals)
STD_PHP_INI_ENTRY("av.threads_per_audio_stream", "2", PHP_INI_ALL, OnUpdateLong, threads_per_audio_stream, zend_av_globals, av_globals)
PHP_INI_END()
/* }}} */
/* {{{ php_av_init_globals
*/
static void php_av_init_globals(zend_av_globals *av_globals)
{
av_globals->optimize_output = TRUE;
av_globals->verbose_reporting = FALSE;
av_globals->max_threads_per_stream = 2;
av_globals->threads_per_video_stream = 2;
av_globals->threads_per_audio_stream = 2;
}
/* }}} */
static int av_is_qt_format(AVOutputFormat *of) {
AVOutputFormat *qt = av_guess_format("mov", NULL, NULL);
if(qt && qt->write_header == of->write_header && qt->write_packet == of->write_packet && qt->write_trailer == of->write_trailer) {
return TRUE;
}
return FALSE;
}
static int av_flush_pending_packets(av_file *file);
#ifndef HAVE_AVCODEC_FREE_FRAME
void avcodec_free_frame(AVFrame **frame)
{
if (!frame || !*frame)
return;
av_freep(frame);
}
#endif
static void av_free_file(av_file *file) {
file->flags |= AV_FILE_FREED;
// don't free anything until all streams are closed
if(file->open_stream_count == 0) {
uint32_t i = 0, j = 0;
if(file->flags & AV_FILE_WRITE) {
av_flush_pending_packets(file);
if(file->flags & AV_FILE_HEADER_WRITTEN) {
av_write_trailer(file->format_cxt);
}
}
// free the streams
for(i = 0; i < file->stream_count; i++) {
av_stream *strm = file->streams[i];
if(strm) {
avcodec_close(strm->codec_cxt);
if(strm->frame) {
if(strm->flags & AV_STREAM_FRAME_BUFFER_ALLOCATED) {
avpicture_free((AVPicture *) strm->frame);
} else if(strm->flags & AV_STREAM_AUDIO_BUFFER_ALLOCATED) {
efree(strm->frame->data[0]);
strm->frame->data[0] = NULL;
}
avcodec_free_frame(&strm->frame);
}
if(strm->next_frame) {
avcodec_free_frame(&strm->next_frame);
}
if(strm->picture) {
avpicture_free((AVPicture *) strm->picture);
avcodec_free_frame(&strm->picture);
}
if(strm->scaler_cxt) { // buffer for planar to interleave conversion
sws_freeContext(strm->scaler_cxt);
}
if(strm->resampler_cxt) {
#if defined(HAVE_SWRESAMPLE)
swr_free(&strm->resampler_cxt);
#elif defined(HAVE_AVRESAMPLE)
avresample_close(strm->resampler_cxt);
avresample_free(&strm->resampler_cxt);
#else
audio_resample_close(strm->resampler_cxt);
#endif
if(strm->resampler_queue) {
efree(strm->resampler_queue);
}
}
if(strm->subtitle) {
avsubtitle_free(strm->subtitle);
}
if(strm->packet) {
av_free_packet(strm->packet);
efree(strm->packet);
}
if(strm->packet_queue) {
for(j = 0; j < strm->packet_count; j++) {
av_free_packet(strm->packet_queue[j]);
efree(strm->packet_queue[j]);
}
efree(strm->packet_queue);
}
if(strm->samples) {
efree(strm->samples);
}
efree(strm);
}
}
if(file->streams) {
efree(file->streams);
}
if(file->flags & AV_FILE_WRITE) {
TSRMLS_FETCH();
if(AV_G(optimize_output)) {
if(av_is_qt_format(file->format_cxt->oformat)) {
avio_flush(file->format_cxt->pb);
av_optimize_mov_file(file->format_cxt->pb);
}
}
avio_close(file->format_cxt->pb);
avformat_free_context(file->format_cxt);
} else {
avformat_close_input(&file->format_cxt);
}
efree(file);
}
}
static void av_flush_remaining_frames(av_stream *strm);
static void av_free_stream(av_stream *strm) {
if(!(strm->flags & AV_STREAM_FREED)) {
av_file *file = strm->file;
file->open_stream_count--;
if(file->flags & AV_FILE_WRITE) {
if(file->flags & AV_FILE_HEADER_WRITTEN) {
av_flush_remaining_frames(strm);
}
}
strm->flags |= AV_STREAM_FREED;
if(file->open_stream_count == 0) {
if(file->flags & AV_FILE_FREED) {
// free the file if no zval is referencing it
av_free_file(file);
}
}
}
}
static void php_free_av_file(zend_rsrc_list_entry *rsrc TSRMLS_DC) {
av_free_file(rsrc->ptr);
}
static void php_free_av_stream(zend_rsrc_list_entry *rsrc TSRMLS_DC) {
av_free_stream(rsrc->ptr);
}
static int av_get_stream_type(const char *type TSRMLS_DC) {
if(strcmp(type, "video") == 0) {
return AVMEDIA_TYPE_VIDEO;
} else if(strcmp(type, "audio") == 0) {
return AVMEDIA_TYPE_AUDIO;
} else if(strcmp(type, "subtitle") == 0) {
return AVMEDIA_TYPE_SUBTITLE;
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "'%s' is not a recognized stream type", type);
return -1;
}
}
static void av_push_packet(av_stream *strm, AVPacket *packet) {
if(!strm->packet) {
strm->packet = packet;
strm->packet_bytes_remaining = packet->size;
return;
}
if(strm->packet_count >= strm->packet_queue_size) {
strm->packet_queue_size += 16;
strm->packet_queue = erealloc(strm->packet_queue, sizeof(AVPacket *) * strm->packet_queue_size);
}
strm->packet_queue[strm->packet_count] = packet;
strm->packet_count++;
}
static int av_shift_packet(av_stream *strm) {
if(strm->packet) {
av_free_packet(strm->packet);
efree(strm->packet);
}
if(strm->packet_count > 0) {
strm->packet = strm->packet_queue[0];
strm->packet_bytes_remaining = strm->packet->size;
strm->packet_count--;
memmove(&strm->packet_queue[0], &strm->packet_queue[1], sizeof(AVPacket *) * strm->packet_count);
return TRUE;
} else {
strm->packet = NULL;
return FALSE;
}
}
static void av_set_log_level(TSRMLS_D) {
if(AV_G(verbose_reporting)) {
av_log_set_level(AV_LOG_VERBOSE);
} else {
av_log_set_level(AV_LOG_FATAL);
}
}
/* {{{ PHP_MINIT_FUNCTION
*/
PHP_MINIT_FUNCTION(av)
{
ZEND_INIT_MODULE_GLOBALS(av, php_av_init_globals, NULL);
REGISTER_INI_ENTRIES();
av_set_log_level(TSRMLS_C);
av_register_all();
avcodec_register_all();
le_av_file = zend_register_list_destructors_ex(php_free_av_file, NULL, "av file", module_number);
le_av_strm = zend_register_list_destructors_ex(php_free_av_stream, NULL, "av stream", module_number);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION
*/
PHP_MSHUTDOWN_FUNCTION(av)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* Remove if there's nothing to do at request start */
/* {{{ PHP_RINIT_FUNCTION
*/
PHP_RINIT_FUNCTION(av)
{
if(le_gd == -1) {
le_gd = zend_fetch_list_dtor_id("gd");
}
#if !defined(HAVE_AVCODEC_ENCODE_VIDEO2) || !defined(HAVE_AVCODEC_ENCODE_AUDIO2) || !defined(HAVE_AVCODEC_ENCODE_SUBTITLE2)
AV_G(encoding_buffer) = NULL;
AV_G(encoding_buffer_size) = 0;
#endif
#ifdef USE_CUSTOM_MALLOC
av_install_custom_malloc();
#endif
return SUCCESS;
}
/* }}} */
/* Remove if there's nothing to do at request end */
/* {{{ PHP_RSHUTDOWN_FUNCTION
*/
PHP_RSHUTDOWN_FUNCTION(av)
{
#if !defined(HAVE_AVCODEC_ENCODE_VIDEO2) || !defined(HAVE_AVCODEC_ENCODE_AUDIO2) || !defined(HAVE_AVCODEC_ENCODE_SUBTITLE2)
if(AV_G(encoding_buffer)) {
efree(AV_G(encoding_buffer));
}
#endif
return SUCCESS;
}
/* }}} */
static char *av_insert_spaces(const char *list, char *buffer, size_t buffer_size) {
if(list && list[0]) {
// add space after comma so the list doesn't blow out the table
uint32_t i, j;
for(i = 0, j = 0; list[i] != '\0'; i++) {
if(list[i] == ',') {
if(list[i + 1] != ' ' && list[i + 1] != '\0') {
buffer[j++] = ',';
buffer[j++] = ' ';
} else {
buffer[j++] = ',';
}
} else {
buffer[j++] = list[i];
}
if(j + 2 > buffer_size) {
break;
}
}
buffer[j] = '\0';
return buffer;
} else {
return NULL;
}
}
/* {{{ PHP_MINFO_FUNCTION
*/
PHP_MINFO_FUNCTION(av)
{
AVOutputFormat *ofmt = NULL;
AVInputFormat *ifmt = NULL;
char name_buffer[1024], ext_buffer[1024];
php_info_print_table_start();
php_info_print_table_header(2, "av support", "enabled");
php_info_print_table_row(2, "Version", STRING(AV_MAJOR_VERSION) "." STRING(AV_MINOR_VERSION));
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
php_info_print_table_start();
php_info_print_table_colspan_header(4, "Output formats");
php_info_print_table_header(4, "Name", "Short name", "MIME type", "Extensions");
while((ofmt = av_oformat_next(ofmt))) {
php_info_print_table_row(4, ofmt->long_name, av_insert_spaces(ofmt->name, name_buffer, sizeof(name_buffer)), ofmt->mime_type, av_insert_spaces(ofmt->extensions, ext_buffer, sizeof(ext_buffer)));
}
php_info_print_table_end();
php_info_print_table_start();
php_info_print_table_colspan_header(3, "Input formats");
php_info_print_table_header(3, "Name", "Short name", "Extensions");
while((ifmt = av_iformat_next(ifmt))) {
php_info_print_table_row(3, ifmt->long_name, av_insert_spaces(ifmt->name, name_buffer, sizeof(name_buffer)), av_insert_spaces(ifmt->extensions, ext_buffer, sizeof(ext_buffer)));
}
php_info_print_table_end();
}
/* }}} */
int av_copy_metadata(AVDictionary **dict, zval *options TSRMLS_DC) {
if(options) {
zval **p_metadata;
if(zend_hash_find(Z_ARRVAL_P(options), "metadata", 9, (void **) &p_metadata) == SUCCESS) {
zval *metadata = *p_metadata;
if(Z_TYPE_P(metadata) == IS_ARRAY) {
Bucket *p;
HashTable *ht = Z_ARRVAL_P(metadata);
for(p = ht->pListHead; p; p = p->pListNext) {
if(p->nKeyLength > 0) {
zval **p_element = p->pData, *element = *p_element;
const char *key, *value;
convert_to_string(element);
key = p->arKey;
value = Z_STRVAL_P(element);
av_dict_set(dict, key, value, 0);
}
}
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Metadata should be an array");
return FALSE;
}
}
}
return TRUE;
}
/* Every user-visible function in PHP should document itself in the source */
/* {{{ proto string av_file_open(string arg, string mode [, array options])
Create an encoder */
PHP_FUNCTION(av_file_open)
{
char *filename, *mode;
int filename_len, mode_len;
zval *z_options = NULL;
char *code;
int32_t flags = 0;
av_file *file;
AVInputFormat *input_format = NULL;
AVOutputFormat *output_format = NULL;
AVFormatContext *format_cxt = NULL;
char *new_filename = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|a", &filename, &filename_len, &mode, &mode_len, &z_options) == FAILURE) {
return;
}
av_set_log_level(TSRMLS_C);
for(code = mode; *code; code++) {
if(*code == 'r') {
flags = AV_FILE_READ;
} else if(*code == 'w') {
flags = AV_FILE_WRITE;
}
}
if(strncmp(filename, "mms://", 6) == 0) {
new_filename = emalloc(filename_len + 2);
memcpy(new_filename, "mmsh://", 7);
memcpy(new_filename + 7, filename + 6, filename_len - 6 + 1);
filename = new_filename;
}
if(flags & AV_FILE_READ) {
if (avformat_open_input(&format_cxt, filename, NULL, NULL) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error opening file for reading: %s", filename);
return;
}
if (avformat_find_stream_info(format_cxt, NULL) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error finding stream info: %s", filename);
return;
}
input_format = format_cxt->iformat;
} else if(flags & AV_FILE_WRITE) {
AVIOContext *pb = NULL;
if(z_options) {
zval **p_value = NULL;
if(zend_hash_find(Z_ARRVAL_P(z_options), "format", 7, (void **) &p_value) != FAILURE) {
if(Z_TYPE_PP(p_value) == IS_STRING) {
char *short_name = Z_STRVAL_PP(p_value);
output_format = av_guess_format(short_name, NULL, NULL);
if(!output_format) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot find output format: %s", short_name);
return;
}
}
}
if(!output_format) {
if(zend_hash_find(Z_ARRVAL_P(z_options), "mime", 5, (void **) &p_value) != FAILURE) {
if(Z_TYPE_PP(p_value) == IS_STRING) {
char *mime_type = Z_STRVAL_PP(p_value);
output_format = av_guess_format(NULL, NULL, mime_type);
}
}
}
}
if(!output_format) {
output_format = av_guess_format(NULL, filename, NULL);
if(!output_format) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot deduce output format from filename: %s", filename);
return;
}
}
if(!(output_format->flags & AVFMT_NOFILE)) {
if(avio_open(&pb, filename, AVIO_FLAG_READ_WRITE) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error opening file for writing: %s", filename);
return;
}
}
format_cxt = avformat_alloc_context();
format_cxt->pb = pb;
format_cxt->oformat = output_format;
// copy metadata
av_copy_metadata(&format_cxt->metadata, z_options TSRMLS_CC);
}
if(new_filename) {
efree(new_filename);
}
file = emalloc(sizeof(av_file));
memset(file, 0, sizeof(av_file));
file->format_cxt = format_cxt;
file->input_format = input_format;
file->output_format = output_format;
file->flags = flags;
if(format_cxt->nb_streams) {
file->streams = emalloc(sizeof(av_stream) * format_cxt->nb_streams);
file->stream_count = format_cxt->nb_streams;
memset(file->streams, 0, sizeof(av_stream) * format_cxt->nb_streams);
}
ZEND_REGISTER_RESOURCE(return_value, file, le_av_file);
}
/* }}} */
/* {{{ proto string av_file_close(resource file)
Close an av file */
PHP_FUNCTION(av_file_close)
{
zval *z_file;
av_file *file;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &z_file) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(file, av_file *, &z_file, -1, "av file", le_av_file);
av_set_log_level(TSRMLS_C);
if(file->open_stream_count == 0) {
RETVAL_TRUE;
} else {
RETVAL_FALSE;
}
zend_list_delete(Z_LVAL_P(z_file));
}
/* }}} */
static int av_seek_file(av_file *file, double time, int precise) {
double time_unit;
int64_t min_time_stamp, time_stamp, max_time_stamp;
int32_t stream_index = -1;
uint32_t i;
// get rid of packets that were placed in each stream's queue
for(i = 0; i < file->stream_count; i++) {
av_stream *strm = file->streams[i];
if(strm) {
while(strm->packet) {
av_shift_packet(strm);
}
if(strm->next_frame) {
// remove the next frame as well(retrieved by a previous precise seek)
avcodec_free_frame(&strm->next_frame);
strm->next_frame = NULL;
strm->next_frame_time = 0;
}
}
}
// use the video stream if there's one opened
for(i = 0; i < file->stream_count; i++) {
av_stream *strm = file->streams[i];
if(strm && !(strm->flags & AV_STREAM_FREED)) {
if(strm->codec->type == AVMEDIA_TYPE_VIDEO) {
stream_index = i;
break;
}
}
}
// use the first opened stream
if(stream_index == -1) {
for(i = 0; i < file->stream_count; i++) {
av_stream *strm = file->streams[i];
if(strm && !(strm->flags & AV_STREAM_FREED)) {
stream_index = i;
break;
}
}
}
// use the best video stream if no stream was opened
if(stream_index == -1) {
int32_t best_stream_index = av_find_best_stream(file->format_cxt, AVMEDIA_TYPE_VIDEO, -1, -1, NULL, 0);
if(best_stream_index >= 0) {
stream_index = best_stream_index;
}
}
// let ffmpeg choose the stream otherwise
if(stream_index == -1) {
time_unit = 1.0 / AV_TIME_BASE;
} else {
AVStream *s = file->format_cxt->streams[stream_index];
time_unit = av_q2d(s->time_base);
}
// not setting a minimum--decode to the correct position if we have to
// never seek beyond the time given
min_time_stamp = (int64_t) (-1 / time_unit);
time_stamp = (int64_t) (time / time_unit);
max_time_stamp = time_stamp;
if(avformat_seek_file(file->format_cxt, stream_index, min_time_stamp, time_stamp, max_time_stamp, 0) < 0) {
return FALSE;
}
// note that a seek has occured
for(i = 0; i < file->stream_count; i++) {
av_stream *strm = file->streams[i];
if(strm) {
if(precise) {
// note the time so we can decode to it
strm->flags |= AV_STREAM_SOUGHT;
strm->time_sought = time;
} else {
// just in case a seek had occurred before
strm->flags &= ~AV_STREAM_SOUGHT;
strm->time_sought = 0;
}
}
}
// clear eof flag
file->flags &= ~AV_FILE_EOF_REACHED;
return TRUE;
}
/* {{{ proto string av_file_seek(resource file, double time)
Seek to a specific time */
PHP_FUNCTION(av_file_seek)
{
zval *z_file;
av_file *file;
double time;
zend_bool precise = TRUE;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "rd|b", &z_file, &time, &precise) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(file, av_file *, &z_file, -1, "av file", le_av_file);
av_set_log_level(TSRMLS_C);
if(av_seek_file(file, time, precise)) {
RETVAL_TRUE;
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto string av_file_eof(resource file)
Indicate whether there's more contents */
PHP_FUNCTION(av_file_eof)
{
zval *z_file;
av_file *file;
int32_t eof = FALSE;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &z_file) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(file, av_file *, &z_file, -1, "av file", le_av_file);
if(file->flags & AV_FILE_EOF_REACHED) {
uint32_t i;
eof = TRUE;
for(i = 0; i < file->stream_count; i++) {
av_stream *strm = file->streams[i];
if(strm) {
if((strm->packet && strm->packet_bytes_remaining > 0) || strm->packet_count > 0) {
eof = FALSE;
}
}
}
}
RETVAL_BOOL(eof);
}
/* }}} */
static uint32_t av_get_name_length(const char *s) {
uint32_t i = 0;
while(s && s[i] != ',' && s[i] != '\0') {
i++;
}
return i;
}
/* {{{ proto string av_file_stat(resource file)
Return information about media file */
PHP_FUNCTION(av_file_stat)
{
zval *z_file;
av_file *file;
AVFormatContext *f;
zval *streams, *metadata;
uint32_t i;
AVDictionaryEntry *e;
const char *format, *format_name;
double overall_duration;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "r", &z_file) == FAILURE) {
return;
}
ZEND_FETCH_RESOURCE(file, av_file *, &z_file, -1, "av file", le_av_file);
f = file->format_cxt;
av_set_log_level(TSRMLS_C);
array_init(return_value);
format = (f->iformat) ? f->iformat->name : f->oformat->name;
format_name = (f->iformat) ? f->iformat->long_name : f->oformat->long_name;
if(f->duration != AV_NOPTS_VALUE) {
overall_duration = (double) f->duration / AV_TIME_BASE;
} else {
overall_duration = INFINITY;
}
av_set_element_stringl(return_value, "format", format, av_get_name_length(format));
av_set_element_string(return_value, "format_name", format_name);
av_set_element_long(return_value, "bit_rate", f->bit_rate);
av_set_element_double(return_value, "duration", overall_duration);
// add metadata of file
MAKE_STD_ZVAL(metadata);
array_init(metadata);
zend_hash_update(HASH_OF(return_value), "metadata", sizeof("metadata"), (void *) &metadata, sizeof(zval *), NULL);
for(e = NULL; (e = av_dict_get(f->metadata, "", e, AV_DICT_IGNORE_SUFFIX)); ) {
av_set_element_string(metadata, e->key, e->value);
}
MAKE_STD_ZVAL(streams);
array_init(streams);
zend_hash_update(HASH_OF(return_value), "streams", (uint32_t) strlen("streams") + 1, (void *) &streams, sizeof(zval *), NULL);
for(i = 0; i < f->nb_streams; i++) {
zval *stream;
AVStream *s = f->streams[i];
AVCodecContext *c = s->codec;
AVCodec *d = avcodec_find_decoder(c->codec_id);
const char *stream_type, *codec, *codec_name;
double duration;
MAKE_STD_ZVAL(stream);
array_init(stream);
zend_hash_next_index_insert(HASH_OF(streams), (void *) &stream, sizeof(zval *), NULL);
switch (c->codec_type) {
case AVMEDIA_TYPE_VIDEO: stream_type = "video"; break;
case AVMEDIA_TYPE_AUDIO: stream_type = "audio"; break;
case AVMEDIA_TYPE_DATA: stream_type = "data"; break;
case AVMEDIA_TYPE_SUBTITLE: stream_type = "subtitle"; break;
case AVMEDIA_TYPE_ATTACHMENT: stream_type = "attachment"; break;
default: stream_type = NULL;
}
codec = (d) ? d->name : "unknown";
codec_name = (d) ? d->long_name : "unknown";
if(s->duration != AV_NOPTS_VALUE) {
duration = (double) s->duration * av_q2d(s->time_base);
} else if(s->nb_frames != 0) {
// not sure why duration isn't set if it could be calculated this way
duration = (double) s->nb_frames * av_q2d(s->time_base);
} else {
// use the overall duration
duration = overall_duration;
}
av_set_element_string(stream, "type", stream_type);
av_set_element_stringl(stream, "codec", codec, av_get_name_length(codec));
av_set_element_string(stream, "codec_name", codec_name);
av_set_element_long(stream, "bit_rate", c->bit_rate);
av_set_element_double(stream, "duration", duration);
switch(c->codec_type) {
case AVMEDIA_TYPE_VIDEO: {
double frame_rate = 0;
if(c->codec_type == AVMEDIA_TYPE_VIDEO) {
if(s->avg_frame_rate.den != 0) {
frame_rate = av_q2d(s->avg_frame_rate);
} else if(s->r_frame_rate.den != 0) {
frame_rate = av_q2d(s->r_frame_rate);
}
}
av_set_element_double(stream, "frame_rate", frame_rate);
av_set_element_long(stream, "height", c->height);
av_set_element_long(stream, "width", c->width);
} break;
case AVMEDIA_TYPE_AUDIO: {
av_set_element_long(stream, "channel_layout", (long) c->channel_layout);
av_set_element_long(stream, "channels", c->channels);
av_set_element_long(stream, "sample_rate", c->sample_rate);
} break;
case AVMEDIA_TYPE_SUBTITLE: {
if(c->subtitle_header_size > 0) {
av_set_element_stringl(stream, "subtitle_header", (char *) c->subtitle_header, (long) c->subtitle_header_size);
}
} break;
default:
break;
}
// add metadata of stream
MAKE_STD_ZVAL(metadata);
array_init(metadata);
zend_hash_update(HASH_OF(stream), "metadata", sizeof("metadata"), (void *) &metadata, sizeof(zval *), NULL);
for(e = NULL; (e = av_dict_get(s->metadata, "", e, AV_DICT_IGNORE_SUFFIX)); ) {
av_set_element_string(metadata, e->key, e->value);
}
// refer to stream using string key if it happens to be the best stream of a given type
if(i == av_find_best_stream(f, c->codec_type, -1, -1, NULL, 0)) {
Z_ADDREF_P(stream);
zend_hash_update(HASH_OF(streams), stream_type, (uint32_t) strlen(stream_type) + 1, (void *) &stream, sizeof(zval *), NULL);
}
}
}
/* }}} */
static int av_optimize_file(AVIOContext *pb) {
return av_optimize_mov_file(pb);
}
/* {{{ proto string av_file_optimize(string arg)
Optimize a file */
PHP_FUNCTION(av_file_optimize)
{
char *filename;
int filename_len;
int result = FALSE;
AVIOContext *pb = NULL;
AVDictionary *options = NULL;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &filename, &filename_len) == FAILURE) {
return;
}
av_set_log_level(TSRMLS_C);
av_dict_set(&options, "truncate", "0", 0);
if(avio_open2(&pb, filename, AVIO_FLAG_READ_WRITE, NULL, &options) < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error opening file for writing: %s", filename);
av_dict_free(&options);
return;
}
result = av_optimize_file(pb);
avio_close(pb);
av_dict_free(&options);
RETURN_BOOL(result);
}
/* }}} */
#ifdef HAVE_AVCODEC_DEFAULT_GET_BUFFER2
static int av_stream_get_buffer2(AVCodecContext *c, AVFrame *pic, int flags) {
av_stream *strm = c->opaque;
int ret = avcodec_default_get_buffer2(c, pic, flags);
if(strm->frame_pts == AV_NOPTS_VALUE) {
strm->frame_pts = strm->packet->pts;
}
return ret;
}