keyframe & non keyframe index fixes
[libav.git] / libavformat / avformat.h
1 #ifndef AVFORMAT_H
2 #define AVFORMAT_H
3
4 #ifdef __cplusplus
5 extern "C" {
6 #endif
7
8 #define LIBAVFORMAT_BUILD 4622
9
10 #define LIBAVFORMAT_VERSION_INT FFMPEG_VERSION_INT
11 #define LIBAVFORMAT_VERSION FFMPEG_VERSION
12 #define LIBAVFORMAT_IDENT "FFmpeg" FFMPEG_VERSION "b" AV_STRINGIFY(LIBAVFORMAT_BUILD)
13
14 #include <time.h>
15 #include <stdio.h> /* FILE */
16 #include "avcodec.h"
17
18 #include "avio.h"
19
20 /* packet functions */
21
22 #ifndef MAXINT64
23 #define MAXINT64 int64_t_C(0x7fffffffffffffff)
24 #endif
25
26 #ifndef MININT64
27 #define MININT64 int64_t_C(0x8000000000000000)
28 #endif
29
30 typedef struct AVPacket {
31 int64_t pts; /* presentation time stamp in AV_TIME_BASE units (or
32 pts_den units in muxers or demuxers) */
33 int64_t dts; /* decompression time stamp in AV_TIME_BASE units (or
34 pts_den units in muxers or demuxers) */
35 uint8_t *data;
36 int size;
37 int stream_index;
38 int flags;
39 int duration; /* presentation duration (0 if not available) */
40 void (*destruct)(struct AVPacket *);
41 void *priv;
42 } AVPacket;
43 #define PKT_FLAG_KEY 0x0001
44
45 void av_destruct_packet_nofree(AVPacket *pkt);
46
47 /* initialize optional fields of a packet */
48 static inline void av_init_packet(AVPacket *pkt)
49 {
50 pkt->pts = AV_NOPTS_VALUE;
51 pkt->dts = AV_NOPTS_VALUE;
52 pkt->duration = 0;
53 pkt->flags = 0;
54 pkt->stream_index = 0;
55 pkt->destruct= av_destruct_packet_nofree;
56 }
57
58 int av_new_packet(AVPacket *pkt, int size);
59 int av_dup_packet(AVPacket *pkt);
60
61 /**
62 * Free a packet
63 *
64 * @param pkt packet to free
65 */
66 static inline void av_free_packet(AVPacket *pkt)
67 {
68 if (pkt && pkt->destruct) {
69 pkt->destruct(pkt);
70 }
71 }
72
73 /*************************************************/
74 /* fractional numbers for exact pts handling */
75
76 /* the exact value of the fractional number is: 'val + num / den'. num
77 is assumed to be such as 0 <= num < den */
78 typedef struct AVFrac {
79 int64_t val, num, den;
80 } AVFrac;
81
82 void av_frac_init(AVFrac *f, int64_t val, int64_t num, int64_t den);
83 void av_frac_add(AVFrac *f, int64_t incr);
84 void av_frac_set(AVFrac *f, int64_t val);
85
86 /*************************************************/
87 /* input/output formats */
88
89 struct AVFormatContext;
90
91 /* this structure contains the data a format has to probe a file */
92 typedef struct AVProbeData {
93 const char *filename;
94 unsigned char *buf;
95 int buf_size;
96 } AVProbeData;
97
98 #define AVPROBE_SCORE_MAX 100
99
100 typedef struct AVFormatParameters {
101 int frame_rate;
102 int frame_rate_base;
103 int sample_rate;
104 int channels;
105 int width;
106 int height;
107 enum PixelFormat pix_fmt;
108 struct AVImageFormat *image_format;
109 int channel; /* used to select dv channel */
110 const char *device; /* video4linux, audio or DV device */
111 const char *standard; /* tv standard, NTSC, PAL, SECAM */
112 int mpeg2ts_raw:1; /* force raw MPEG2 transport stream output, if possible */
113 int mpeg2ts_compute_pcr:1; /* compute exact PCR for each transport
114 stream packet (only meaningful if
115 mpeg2ts_raw is TRUE */
116 int initial_pause:1; /* do not begin to play the stream
117 immediately (RTSP only) */
118 enum CodecID video_codec_id;
119 enum CodecID audio_codec_id;
120 } AVFormatParameters;
121
122 #define AVFMT_NOFILE 0x0001 /* no file should be opened */
123 #define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
124 #define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */
125 #define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for
126 raw picture data */
127
128 typedef struct AVOutputFormat {
129 const char *name;
130 const char *long_name;
131 const char *mime_type;
132 const char *extensions; /* comma separated extensions */
133 /* size of private data so that it can be allocated in the wrapper */
134 int priv_data_size;
135 /* output support */
136 enum CodecID audio_codec; /* default audio codec */
137 enum CodecID video_codec; /* default video codec */
138 int (*write_header)(struct AVFormatContext *);
139 int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
140 int (*write_trailer)(struct AVFormatContext *);
141 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
142 int flags;
143 /* currently only used to set pixel format if not YUV420P */
144 int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
145 int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
146 /* private fields */
147 struct AVOutputFormat *next;
148 } AVOutputFormat;
149
150 typedef struct AVInputFormat {
151 const char *name;
152 const char *long_name;
153 /* size of private data so that it can be allocated in the wrapper */
154 int priv_data_size;
155 /* tell if a given file has a chance of being parsing by this format */
156 int (*read_probe)(AVProbeData *);
157 /* read the format header and initialize the AVFormatContext
158 structure. Return 0 if OK. 'ap' if non NULL contains
159 additionnal paramters. Only used in raw format right
160 now. 'av_new_stream' should be called to create new streams. */
161 int (*read_header)(struct AVFormatContext *,
162 AVFormatParameters *ap);
163 /* read one packet and put it in 'pkt'. pts and flags are also
164 set. 'av_new_stream' can be called only if the flag
165 AVFMTCTX_NOHEADER is used. */
166 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
167 /* close the stream. The AVFormatContext and AVStreams are not
168 freed by this function */
169 int (*read_close)(struct AVFormatContext *);
170 /**
171 * seek to a given timestamp relative to the frames in
172 * stream component stream_index
173 * @param stream_index must not be -1
174 * @param flags selects which direction should be preferred if no exact
175 * match is available
176 */
177 int (*read_seek)(struct AVFormatContext *,
178 int stream_index, int64_t timestamp, int flags);
179 /**
180 * gets the next timestamp in AV_TIME_BASE units.
181 */
182 int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
183 int64_t *pos, int64_t pos_limit);
184 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
185 int flags;
186 /* if extensions are defined, then no probe is done. You should
187 usually not use extension format guessing because it is not
188 reliable enough */
189 const char *extensions;
190 /* general purpose read only value that the format can use */
191 int value;
192
193 /* start/resume playing - only meaningful if using a network based format
194 (RTSP) */
195 int (*read_play)(struct AVFormatContext *);
196
197 /* pause playing - only meaningful if using a network based format
198 (RTSP) */
199 int (*read_pause)(struct AVFormatContext *);
200
201 /* private fields */
202 struct AVInputFormat *next;
203 } AVInputFormat;
204
205 typedef struct AVIndexEntry {
206 int64_t pos;
207 int64_t timestamp;
208 #define AVINDEX_KEYFRAME 0x0001
209 /* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed */
210 int flags;
211 int min_distance; /* min distance between this and the previous keyframe, used to avoid unneeded searching */
212 } AVIndexEntry;
213
214 typedef struct AVStream {
215 int index; /* stream index in AVFormatContext */
216 int id; /* format specific stream id */
217 AVCodecContext codec; /* codec context */
218 int r_frame_rate; /* real frame rate of the stream */
219 int r_frame_rate_base;/* real frame rate base of the stream */
220 void *priv_data;
221 /* internal data used in av_find_stream_info() */
222 int64_t codec_info_duration;
223 int codec_info_nb_frames;
224 /* encoding: PTS generation when outputing stream */
225 AVFrac pts;
226 AVRational time_base;
227 int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
228 /* ffmpeg.c private use */
229 int stream_copy; /* if TRUE, just copy stream */
230 int discard; ///< if 1, packets can be discarded at will and dont need to be demuxed
231 //FIXME move stuff to a flags field?
232 /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
233 * MN:dunno if thats the right place, for it */
234 float quality;
235 /* decoding: position of the first frame of the component, in
236 AV_TIME_BASE fractional seconds. */
237 int64_t start_time;
238 /* decoding: duration of the stream, in AV_TIME_BASE fractional
239 seconds. */
240 int64_t duration;
241
242 /* av_read_frame() support */
243 int need_parsing;
244 struct AVCodecParserContext *parser;
245
246 int64_t cur_dts;
247 int last_IP_duration;
248 int64_t last_IP_pts;
249 /* av_seek_frame() support */
250 AVIndexEntry *index_entries; /* only used if the format does not
251 support seeking natively */
252 int nb_index_entries;
253 int index_entries_allocated_size;
254 } AVStream;
255
256 #define AVFMTCTX_NOHEADER 0x0001 /* signal that no header is present
257 (streams are added dynamically) */
258
259 #define MAX_STREAMS 20
260
261 /* format I/O context */
262 typedef struct AVFormatContext {
263 const AVClass *av_class; /* set by av_alloc_format_context */
264 /* can only be iformat or oformat, not both at the same time */
265 struct AVInputFormat *iformat;
266 struct AVOutputFormat *oformat;
267 void *priv_data;
268 ByteIOContext pb;
269 int nb_streams;
270 AVStream *streams[MAX_STREAMS];
271 char filename[1024]; /* input or output filename */
272 /* stream info */
273 int64_t timestamp;
274 char title[512];
275 char author[512];
276 char copyright[512];
277 char comment[512];
278 char album[512];
279 int year; /* ID3 year, 0 if none */
280 int track; /* track number, 0 if none */
281 char genre[32]; /* ID3 genre */
282
283 int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
284 /* private data for pts handling (do not modify directly) */
285 /* This buffer is only needed when packets were already buffered but
286 not decoded, for example to get the codec parameters in mpeg
287 streams */
288 struct AVPacketList *packet_buffer;
289
290 /* decoding: position of the first frame of the component, in
291 AV_TIME_BASE fractional seconds. NEVER set this value directly:
292 it is deduced from the AVStream values. */
293 int64_t start_time;
294 /* decoding: duration of the stream, in AV_TIME_BASE fractional
295 seconds. NEVER set this value directly: it is deduced from the
296 AVStream values. */
297 int64_t duration;
298 /* decoding: total file size. 0 if unknown */
299 int64_t file_size;
300 /* decoding: total stream bitrate in bit/s, 0 if not
301 available. Never set it directly if the file_size and the
302 duration are known as ffmpeg can compute it automatically. */
303 int bit_rate;
304
305 /* av_read_frame() support */
306 AVStream *cur_st;
307 const uint8_t *cur_ptr;
308 int cur_len;
309 AVPacket cur_pkt;
310
311 /* av_seek_frame() support */
312 int64_t data_offset; /* offset of the first packet */
313 int index_built;
314
315 int mux_rate;
316 int packet_size;
317 int preload;
318 int max_delay;
319 } AVFormatContext;
320
321 typedef struct AVPacketList {
322 AVPacket pkt;
323 struct AVPacketList *next;
324 } AVPacketList;
325
326 extern AVInputFormat *first_iformat;
327 extern AVOutputFormat *first_oformat;
328
329 /* still image support */
330 struct AVInputImageContext;
331 typedef struct AVInputImageContext AVInputImageContext;
332
333 typedef struct AVImageInfo {
334 enum PixelFormat pix_fmt; /* requested pixel format */
335 int width; /* requested width */
336 int height; /* requested height */
337 int interleaved; /* image is interleaved (e.g. interleaved GIF) */
338 AVPicture pict; /* returned allocated image */
339 } AVImageInfo;
340
341 /* AVImageFormat.flags field constants */
342 #define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
343
344 typedef struct AVImageFormat {
345 const char *name;
346 const char *extensions;
347 /* tell if a given file has a chance of being parsing by this format */
348 int (*img_probe)(AVProbeData *);
349 /* read a whole image. 'alloc_cb' is called when the image size is
350 known so that the caller can allocate the image. If 'allo_cb'
351 returns non zero, then the parsing is aborted. Return '0' if
352 OK. */
353 int (*img_read)(ByteIOContext *,
354 int (*alloc_cb)(void *, AVImageInfo *info), void *);
355 /* write the image */
356 int supported_pixel_formats; /* mask of supported formats for output */
357 int (*img_write)(ByteIOContext *, AVImageInfo *);
358 int flags;
359 struct AVImageFormat *next;
360 } AVImageFormat;
361
362 void av_register_image_format(AVImageFormat *img_fmt);
363 AVImageFormat *av_probe_image_format(AVProbeData *pd);
364 AVImageFormat *guess_image_format(const char *filename);
365 enum CodecID av_guess_image2_codec(const char *filename);
366 int av_read_image(ByteIOContext *pb, const char *filename,
367 AVImageFormat *fmt,
368 int (*alloc_cb)(void *, AVImageInfo *info), void *opaque);
369 int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img);
370
371 extern AVImageFormat *first_image_format;
372
373 extern AVImageFormat pnm_image_format;
374 extern AVImageFormat pbm_image_format;
375 extern AVImageFormat pgm_image_format;
376 extern AVImageFormat ppm_image_format;
377 extern AVImageFormat pam_image_format;
378 extern AVImageFormat pgmyuv_image_format;
379 extern AVImageFormat yuv_image_format;
380 #ifdef CONFIG_ZLIB
381 extern AVImageFormat png_image_format;
382 #endif
383 extern AVImageFormat jpeg_image_format;
384 extern AVImageFormat gif_image_format;
385 extern AVImageFormat sgi_image_format;
386
387 /* XXX: use automatic init with either ELF sections or C file parser */
388 /* modules */
389
390 /* mpeg.c */
391 extern AVInputFormat mpegps_demux;
392 int mpegps_init(void);
393
394 /* mpegts.c */
395 extern AVInputFormat mpegts_demux;
396 int mpegts_init(void);
397
398 /* rm.c */
399 int rm_init(void);
400
401 /* crc.c */
402 int crc_init(void);
403
404 /* img.c */
405 int img_init(void);
406
407 /* img2.c */
408 int img2_init(void);
409
410 /* asf.c */
411 int asf_init(void);
412
413 /* avienc.c */
414 int avienc_init(void);
415
416 /* avidec.c */
417 int avidec_init(void);
418
419 /* swf.c */
420 int swf_init(void);
421
422 /* mov.c */
423 int mov_init(void);
424
425 /* movenc.c */
426 int movenc_init(void);
427
428 /* flvenc.c */
429 int flvenc_init(void);
430
431 /* flvdec.c */
432 int flvdec_init(void);
433
434 /* jpeg.c */
435 int jpeg_init(void);
436
437 /* gif.c */
438 int gif_init(void);
439
440 /* au.c */
441 int au_init(void);
442
443 /* amr.c */
444 int amr_init(void);
445
446 /* wav.c */
447 int ff_wav_init(void);
448
449 /* raw.c */
450 int pcm_read_seek(AVFormatContext *s,
451 int stream_index, int64_t timestamp, int flags);
452 int raw_init(void);
453
454 /* mp3.c */
455 int mp3_init(void);
456
457 /* yuv4mpeg.c */
458 int yuv4mpeg_init(void);
459
460 /* ogg.c */
461 int ogg_init(void);
462
463 /* dv.c */
464 int ff_dv_init(void);
465
466 /* ffm.c */
467 int ffm_init(void);
468
469 /* rtsp.c */
470 extern AVInputFormat redir_demux;
471 int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
472
473 /* 4xm.c */
474 int fourxm_init(void);
475
476 /* psxstr.c */
477 int str_init(void);
478
479 /* idroq.c */
480 int roq_init(void);
481
482 /* ipmovie.c */
483 int ipmovie_init(void);
484
485 /* nut.c */
486 int nut_init(void);
487
488 /* wc3movie.c */
489 int wc3_init(void);
490
491 /* westwood.c */
492 int westwood_init(void);
493
494 /* segafilm.c */
495 int film_init(void);
496
497 /* idcin.c */
498 int idcin_init(void);
499
500 /* flic.c */
501 int flic_init(void);
502
503 /* sierravmd.c */
504 int vmd_init(void);
505
506 /* matroska.c */
507 int matroska_init(void);
508
509 /* sol.c */
510 int sol_init(void);
511
512 /* electronicarts.c */
513 int ea_init(void);
514
515 /* nsvdec.c */
516 int nsvdec_init(void);
517
518 #include "rtp.h"
519
520 #include "rtsp.h"
521
522 /* yuv4mpeg.c */
523 extern AVOutputFormat yuv4mpegpipe_oformat;
524
525 /* utils.c */
526 void av_register_input_format(AVInputFormat *format);
527 void av_register_output_format(AVOutputFormat *format);
528 AVOutputFormat *guess_stream_format(const char *short_name,
529 const char *filename, const char *mime_type);
530 AVOutputFormat *guess_format(const char *short_name,
531 const char *filename, const char *mime_type);
532 enum CodecID av_guess_codec(AVOutputFormat *fmt, const char *short_name,
533 const char *filename, const char *mime_type, enum CodecType type);
534
535 void av_hex_dump(FILE *f, uint8_t *buf, int size);
536 void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
537
538 void av_register_all(void);
539
540 typedef struct FifoBuffer {
541 uint8_t *buffer;
542 uint8_t *rptr, *wptr, *end;
543 } FifoBuffer;
544
545 int fifo_init(FifoBuffer *f, int size);
546 void fifo_free(FifoBuffer *f);
547 int fifo_size(FifoBuffer *f, uint8_t *rptr);
548 int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
549 void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr);
550 int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
551 void fifo_realloc(FifoBuffer *f, unsigned int size);
552
553 /* media file input */
554 AVInputFormat *av_find_input_format(const char *short_name);
555 AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
556 int av_open_input_stream(AVFormatContext **ic_ptr,
557 ByteIOContext *pb, const char *filename,
558 AVInputFormat *fmt, AVFormatParameters *ap);
559 int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
560 AVInputFormat *fmt,
561 int buf_size,
562 AVFormatParameters *ap);
563 /* no av_open for output, so applications will need this: */
564 AVFormatContext *av_alloc_format_context(void);
565
566 #define AVERROR_UNKNOWN (-1) /* unknown error */
567 #define AVERROR_IO (-2) /* i/o error */
568 #define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */
569 #define AVERROR_INVALIDDATA (-4) /* invalid data found */
570 #define AVERROR_NOMEM (-5) /* not enough memory */
571 #define AVERROR_NOFMT (-6) /* unknown format */
572 #define AVERROR_NOTSUPP (-7) /* operation not supported */
573
574 int av_find_stream_info(AVFormatContext *ic);
575 int av_read_packet(AVFormatContext *s, AVPacket *pkt);
576 int av_read_frame(AVFormatContext *s, AVPacket *pkt);
577 int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
578 int av_read_play(AVFormatContext *s);
579 int av_read_pause(AVFormatContext *s);
580 void av_close_input_file(AVFormatContext *s);
581 AVStream *av_new_stream(AVFormatContext *s, int id);
582 void av_set_pts_info(AVStream *s, int pts_wrap_bits,
583 int pts_num, int pts_den);
584
585 #define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
586 #define AVSEEK_FLAG_BYTE 2 ///< seeking based on position in bytes
587 #define AVSEEK_FLAG_ANY 4 ///< seek to any frame, even non keyframes
588
589 int av_find_default_stream_index(AVFormatContext *s);
590 int av_index_search_timestamp(AVStream *st, int64_t timestamp, int flags);
591 int av_add_index_entry(AVStream *st,
592 int64_t pos, int64_t timestamp, int distance, int flags);
593 int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
594
595 /* media file output */
596 int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
597 int av_write_header(AVFormatContext *s);
598 int av_write_frame(AVFormatContext *s, AVPacket *pkt);
599 int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
600
601 int av_write_trailer(AVFormatContext *s);
602
603 void dump_format(AVFormatContext *ic,
604 int index,
605 const char *url,
606 int is_output);
607 int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
608 int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
609 int64_t parse_date(const char *datestr, int duration);
610
611 int64_t av_gettime(void);
612
613 /* ffm specific for ffserver */
614 #define FFM_PACKET_SIZE 4096
615 offset_t ffm_read_write_index(int fd);
616 void ffm_write_write_index(int fd, offset_t pos);
617 void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
618
619 int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
620
621 int get_frame_filename(char *buf, int buf_size,
622 const char *path, int number);
623 int filename_number_test(const char *filename);
624
625 /* grab specific */
626 int video_grab_init(void);
627 int audio_init(void);
628
629 /* DV1394 */
630 int dv1394_init(void);
631 int dc1394_init(void);
632
633 #ifdef HAVE_AV_CONFIG_H
634
635 #include "os_support.h"
636
637 int strstart(const char *str, const char *val, const char **ptr);
638 int stristart(const char *str, const char *val, const char **ptr);
639 void pstrcpy(char *buf, int buf_size, const char *str);
640 char *pstrcat(char *buf, int buf_size, const char *s);
641
642 void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
643
644 #ifdef __GNUC__
645 #define dynarray_add(tab, nb_ptr, elem)\
646 do {\
647 typeof(tab) _tab = (tab);\
648 typeof(elem) _elem = (elem);\
649 (void)sizeof(**_tab == _elem); /* check that types are compatible */\
650 __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
651 } while(0)
652 #else
653 #define dynarray_add(tab, nb_ptr, elem)\
654 do {\
655 __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
656 } while(0)
657 #endif
658
659 time_t mktimegm(struct tm *tm);
660 struct tm *brktimegm(time_t secs, struct tm *tm);
661 const char *small_strptime(const char *p, const char *fmt,
662 struct tm *dt);
663
664 struct in_addr;
665 int resolve_host(struct in_addr *sin_addr, const char *hostname);
666
667 void url_split(char *proto, int proto_size,
668 char *authorization, int authorization_size,
669 char *hostname, int hostname_size,
670 int *port_ptr,
671 char *path, int path_size,
672 const char *url);
673
674 int match_ext(const char *filename, const char *extensions);
675
676 #endif /* HAVE_AV_CONFIG_H */
677
678 #ifdef __cplusplus
679 }
680 #endif
681
682 #endif /* AVFORMAT_H */