Statistics
| Branch: | Revision:

ffmpeg / libavformat / avformat.h @ 576ae256

History | View | Annotate | Download (20.1 KB)

1
#ifndef AVFORMAT_H
2
#define AVFORMAT_H
3

    
4
#ifdef __cplusplus
5
extern "C" {
6
#endif
7

    
8
#define LIBAVFORMAT_BUILD       4618
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
} AVFormatParameters;
119

    
120
#define AVFMT_NOFILE        0x0001 /* no file should be opened */
121
#define AVFMT_NEEDNUMBER    0x0002 /* needs '%d' in filename */ 
122
#define AVFMT_SHOW_IDS      0x0008 /* show format stream IDs numbers */
123
#define AVFMT_RAWPICTURE    0x0020 /* format wants AVPicture structure for
124
                                      raw picture data */
125

    
126
typedef struct AVOutputFormat {
127
    const char *name;
128
    const char *long_name;
129
    const char *mime_type;
130
    const char *extensions; /* comma separated extensions */
131
    /* size of private data so that it can be allocated in the wrapper */
132
    int priv_data_size;
133
    /* output support */
134
    enum CodecID audio_codec; /* default audio codec */
135
    enum CodecID video_codec; /* default video codec */
136
    int (*write_header)(struct AVFormatContext *);
137
    int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
138
    int (*write_trailer)(struct AVFormatContext *);
139
    /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
140
    int flags;
141
    /* currently only used to set pixel format if not YUV420P */
142
    int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
143
    int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
144
    /* private fields */
145
    struct AVOutputFormat *next;
146
} AVOutputFormat;
147

    
148
typedef struct AVInputFormat {
149
    const char *name;
150
    const char *long_name;
151
    /* size of private data so that it can be allocated in the wrapper */
152
    int priv_data_size;
153
    /* tell if a given file has a chance of being parsing by this format */
154
    int (*read_probe)(AVProbeData *);
155
    /* read the format header and initialize the AVFormatContext
156
       structure. Return 0 if OK. 'ap' if non NULL contains
157
       additionnal paramters. Only used in raw format right
158
       now. 'av_new_stream' should be called to create new streams.  */
159
    int (*read_header)(struct AVFormatContext *,
160
                       AVFormatParameters *ap);
161
    /* read one packet and put it in 'pkt'. pts and flags are also
162
       set. 'av_new_stream' can be called only if the flag
163
       AVFMTCTX_NOHEADER is used. */
164
    int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
165
    /* close the stream. The AVFormatContext and AVStreams are not
166
       freed by this function */
167
    int (*read_close)(struct AVFormatContext *);
168
    /* seek at or before a given timestamp (given in AV_TIME_BASE
169
       units) relative to the frames in stream component stream_index */
170
    int (*read_seek)(struct AVFormatContext *, 
171
                     int stream_index, int64_t timestamp);
172
    /**
173
     * gets the next timestamp in AV_TIME_BASE units.
174
     */
175
    int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
176
                              int64_t *pos, int64_t pos_limit);
177
    /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
178
    int flags;
179
    /* if extensions are defined, then no probe is done. You should
180
       usually not use extension format guessing because it is not
181
       reliable enough */
182
    const char *extensions;
183
    /* general purpose read only value that the format can use */
184
    int value;
185

    
186
    /* start/resume playing - only meaningful if using a network based format
187
       (RTSP) */
188
    int (*read_play)(struct AVFormatContext *);
189

    
190
    /* pause playing - only meaningful if using a network based format
191
       (RTSP) */
192
    int (*read_pause)(struct AVFormatContext *);
193

    
194
    /* private fields */
195
    struct AVInputFormat *next;
196
} AVInputFormat;
197

    
198
typedef struct AVIndexEntry {
199
    int64_t pos;
200
    int64_t timestamp;
201
#define AVINDEX_KEYFRAME 0x0001
202
/* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed */
203
    int flags;
204
    int min_distance;         /* min distance between this and the previous keyframe, used to avoid unneeded searching */
205
} AVIndexEntry;
206

    
207
typedef struct AVStream {
208
    int index;    /* stream index in AVFormatContext */
209
    int id;       /* format specific stream id */
210
    AVCodecContext codec; /* codec context */
211
    int r_frame_rate;     /* real frame rate of the stream */
212
    int r_frame_rate_base;/* real frame rate base of the stream */
213
    void *priv_data;
214
    /* internal data used in av_find_stream_info() */
215
    int64_t codec_info_duration;     
216
    int codec_info_nb_frames;
217
    /* encoding: PTS generation when outputing stream */
218
    AVFrac pts;
219
    AVRational time_base;
220
    int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
221
    /* ffmpeg.c private use */
222
    int stream_copy; /* if TRUE, just copy stream */
223
    /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
224
     * MN:dunno if thats the right place, for it */
225
    float quality; 
226
    /* decoding: position of the first frame of the component, in
227
       AV_TIME_BASE fractional seconds. */
228
    int64_t start_time; 
229
    /* decoding: duration of the stream, in AV_TIME_BASE fractional
230
       seconds. */
231
    int64_t duration;
232

    
233
    /* av_read_frame() support */
234
    int need_parsing;
235
    struct AVCodecParserContext *parser;
236

    
237
    int64_t cur_dts;
238
    int last_IP_duration;
239
    int64_t last_IP_pts;
240
    /* av_seek_frame() support */
241
    AVIndexEntry *index_entries; /* only used if the format does not
242
                                    support seeking natively */
243
    int nb_index_entries;
244
    int index_entries_allocated_size;
245
} AVStream;
246

    
247
#define AVFMTCTX_NOHEADER      0x0001 /* signal that no header is present
248
                                         (streams are added dynamically) */
249

    
250
#define MAX_STREAMS 20
251

    
252
/* format I/O context */
253
typedef struct AVFormatContext {
254
    const AVClass *av_class; /* set by av_alloc_format_context */
255
    /* can only be iformat or oformat, not both at the same time */
256
    struct AVInputFormat *iformat;
257
    struct AVOutputFormat *oformat;
258
    void *priv_data;
259
    ByteIOContext pb;
260
    int nb_streams;
261
    AVStream *streams[MAX_STREAMS];
262
    char filename[1024]; /* input or output filename */
263
    /* stream info */
264
    int64_t timestamp;
265
    char title[512];
266
    char author[512];
267
    char copyright[512];
268
    char comment[512];
269
    char album[512];
270
    int year;  /* ID3 year, 0 if none */
271
    int track; /* track number, 0 if none */
272
    char genre[32]; /* ID3 genre */
273

    
274
    int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
275
    /* private data for pts handling (do not modify directly) */
276
    /* This buffer is only needed when packets were already buffered but
277
       not decoded, for example to get the codec parameters in mpeg
278
       streams */
279
    struct AVPacketList *packet_buffer;
280

    
281
    /* decoding: position of the first frame of the component, in
282
       AV_TIME_BASE fractional seconds. NEVER set this value directly:
283
       it is deduced from the AVStream values.  */
284
    int64_t start_time; 
285
    /* decoding: duration of the stream, in AV_TIME_BASE fractional
286
       seconds. NEVER set this value directly: it is deduced from the
287
       AVStream values.  */
288
    int64_t duration;
289
    /* decoding: total file size. 0 if unknown */
290
    int64_t file_size;
291
    /* decoding: total stream bitrate in bit/s, 0 if not
292
       available. Never set it directly if the file_size and the
293
       duration are known as ffmpeg can compute it automatically. */
294
    int bit_rate;
295

    
296
    /* av_read_frame() support */
297
    AVStream *cur_st;
298
    const uint8_t *cur_ptr;
299
    int cur_len;
300
    AVPacket cur_pkt;
301

    
302
    /* av_seek_frame() support */
303
    int64_t data_offset; /* offset of the first packet */
304
    int index_built;
305
    
306
    int mux_rate;
307
    int packet_size;
308
} AVFormatContext;
309

    
310
typedef struct AVPacketList {
311
    AVPacket pkt;
312
    struct AVPacketList *next;
313
} AVPacketList;
314

    
315
extern AVInputFormat *first_iformat;
316
extern AVOutputFormat *first_oformat;
317

    
318
/* still image support */
319
struct AVInputImageContext;
320
typedef struct AVInputImageContext AVInputImageContext;
321

    
322
typedef struct AVImageInfo {
323
    enum PixelFormat pix_fmt; /* requested pixel format */
324
    int width; /* requested width */
325
    int height; /* requested height */
326
    int interleaved; /* image is interleaved (e.g. interleaved GIF) */
327
    AVPicture pict; /* returned allocated image */
328
} AVImageInfo;
329

    
330
/* AVImageFormat.flags field constants */
331
#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
332

    
333
typedef struct AVImageFormat {
334
    const char *name;
335
    const char *extensions;
336
    /* tell if a given file has a chance of being parsing by this format */
337
    int (*img_probe)(AVProbeData *);
338
    /* read a whole image. 'alloc_cb' is called when the image size is
339
       known so that the caller can allocate the image. If 'allo_cb'
340
       returns non zero, then the parsing is aborted. Return '0' if
341
       OK. */
342
    int (*img_read)(ByteIOContext *, 
343
                    int (*alloc_cb)(void *, AVImageInfo *info), void *);
344
    /* write the image */
345
    int supported_pixel_formats; /* mask of supported formats for output */
346
    int (*img_write)(ByteIOContext *, AVImageInfo *);
347
    int flags;
348
    struct AVImageFormat *next;
349
} AVImageFormat;
350

    
351
void av_register_image_format(AVImageFormat *img_fmt);
352
AVImageFormat *av_probe_image_format(AVProbeData *pd);
353
AVImageFormat *guess_image_format(const char *filename);
354
int av_read_image(ByteIOContext *pb, const char *filename,
355
                  AVImageFormat *fmt,
356
                  int (*alloc_cb)(void *, AVImageInfo *info), void *opaque);
357
int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img);
358

    
359
extern AVImageFormat *first_image_format;
360

    
361
extern AVImageFormat pnm_image_format;
362
extern AVImageFormat pbm_image_format;
363
extern AVImageFormat pgm_image_format;
364
extern AVImageFormat ppm_image_format;
365
extern AVImageFormat pam_image_format;
366
extern AVImageFormat pgmyuv_image_format;
367
extern AVImageFormat yuv_image_format;
368
#ifdef CONFIG_ZLIB
369
extern AVImageFormat png_image_format;
370
#endif
371
extern AVImageFormat jpeg_image_format;
372
extern AVImageFormat gif_image_format;
373
extern AVImageFormat sgi_image_format;
374

    
375
/* XXX: use automatic init with either ELF sections or C file parser */
376
/* modules */
377

    
378
/* mpeg.c */
379
extern AVInputFormat mpegps_demux;
380
int mpegps_init(void);
381

    
382
/* mpegts.c */
383
extern AVInputFormat mpegts_demux;
384
int mpegts_init(void);
385

    
386
/* rm.c */
387
int rm_init(void);
388

    
389
/* crc.c */
390
int crc_init(void);
391

    
392
/* img.c */
393
int img_init(void);
394

    
395
/* img2.c */
396
int img2_init(void);
397

    
398
/* asf.c */
399
int asf_init(void);
400

    
401
/* avienc.c */
402
int avienc_init(void);
403

    
404
/* avidec.c */
405
int avidec_init(void);
406

    
407
/* swf.c */
408
int swf_init(void);
409

    
410
/* mov.c */
411
int mov_init(void);
412

    
413
/* movenc.c */
414
int movenc_init(void);
415

    
416
/* flvenc.c */
417
int flvenc_init(void);
418

    
419
/* flvdec.c */
420
int flvdec_init(void);
421

    
422
/* jpeg.c */
423
int jpeg_init(void);
424

    
425
/* gif.c */
426
int gif_init(void);
427

    
428
/* au.c */
429
int au_init(void);
430

    
431
/* amr.c */
432
int amr_init(void);
433

    
434
/* wav.c */
435
int ff_wav_init(void);
436

    
437
/* raw.c */
438
int pcm_read_seek(AVFormatContext *s, 
439
                  int stream_index, int64_t timestamp);
440
int raw_init(void);
441

    
442
/* mp3.c */
443
int mp3_init(void);
444

    
445
/* yuv4mpeg.c */
446
int yuv4mpeg_init(void);
447

    
448
/* ogg.c */
449
int ogg_init(void);
450

    
451
/* dv.c */
452
int ff_dv_init(void);
453

    
454
/* ffm.c */
455
int ffm_init(void);
456

    
457
/* rtsp.c */
458
extern AVInputFormat redir_demux;
459
int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
460

    
461
/* 4xm.c */
462
int fourxm_init(void);
463

    
464
/* psxstr.c */
465
int str_init(void);
466

    
467
/* idroq.c */
468
int roq_init(void);
469

    
470
/* ipmovie.c */
471
int ipmovie_init(void);
472

    
473
/* nut.c */
474
int nut_init(void);
475

    
476
/* wc3movie.c */
477
int wc3_init(void);
478

    
479
/* westwood.c */
480
int westwood_init(void);
481

    
482
/* segafilm.c */
483
int film_init(void);
484

    
485
/* idcin.c */
486
int idcin_init(void);
487

    
488
/* flic.c */
489
int flic_init(void);
490

    
491
/* sierravmd.c */
492
int vmd_init(void);
493

    
494
/* matroska.c */
495
int matroska_init(void);
496

    
497
/* sol.c */
498
int sol_init(void);
499

    
500
#include "rtp.h"
501

    
502
#include "rtsp.h"
503

    
504
/* yuv4mpeg.c */
505
extern AVOutputFormat yuv4mpegpipe_oformat;
506

    
507
/* utils.c */
508
void av_register_input_format(AVInputFormat *format);
509
void av_register_output_format(AVOutputFormat *format);
510
AVOutputFormat *guess_stream_format(const char *short_name, 
511
                                    const char *filename, const char *mime_type);
512
AVOutputFormat *guess_format(const char *short_name, 
513
                             const char *filename, const char *mime_type);
514

    
515
void av_hex_dump(FILE *f, uint8_t *buf, int size);
516
void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
517

    
518
void av_register_all(void);
519

    
520
typedef struct FifoBuffer {
521
    uint8_t *buffer;
522
    uint8_t *rptr, *wptr, *end;
523
} FifoBuffer;
524

    
525
int fifo_init(FifoBuffer *f, int size);
526
void fifo_free(FifoBuffer *f);
527
int fifo_size(FifoBuffer *f, uint8_t *rptr);
528
int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
529
void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr);
530
int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
531

    
532
/* media file input */
533
AVInputFormat *av_find_input_format(const char *short_name);
534
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
535
int av_open_input_stream(AVFormatContext **ic_ptr, 
536
                         ByteIOContext *pb, const char *filename, 
537
                         AVInputFormat *fmt, AVFormatParameters *ap);
538
int av_open_input_file(AVFormatContext **ic_ptr, const char *filename, 
539
                       AVInputFormat *fmt,
540
                       int buf_size,
541
                       AVFormatParameters *ap);
542
/* no av_open for output, so applications will need this: */
543
AVFormatContext *av_alloc_format_context(void);
544

    
545
#define AVERROR_UNKNOWN     (-1)  /* unknown error */
546
#define AVERROR_IO          (-2)  /* i/o error */
547
#define AVERROR_NUMEXPECTED (-3)  /* number syntax expected in filename */
548
#define AVERROR_INVALIDDATA (-4)  /* invalid data found */
549
#define AVERROR_NOMEM       (-5)  /* not enough memory */
550
#define AVERROR_NOFMT       (-6)  /* unknown format */
551
#define AVERROR_NOTSUPP     (-7)  /* operation not supported */
552
 
553
int av_find_stream_info(AVFormatContext *ic);
554
int av_read_packet(AVFormatContext *s, AVPacket *pkt);
555
int av_read_frame(AVFormatContext *s, AVPacket *pkt);
556
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp);
557
int av_read_play(AVFormatContext *s);
558
int av_read_pause(AVFormatContext *s);
559
void av_close_input_file(AVFormatContext *s);
560
AVStream *av_new_stream(AVFormatContext *s, int id);
561
void av_set_pts_info(AVStream *s, int pts_wrap_bits,
562
                     int pts_num, int pts_den);
563

    
564
int av_find_default_stream_index(AVFormatContext *s);
565
int av_index_search_timestamp(AVStream *st, int timestamp);
566
int av_add_index_entry(AVStream *st,
567
                       int64_t pos, int64_t timestamp, int distance, int flags);
568
int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts);
569

    
570
/* media file output */
571
int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
572
int av_write_header(AVFormatContext *s);
573
int av_write_frame(AVFormatContext *s, AVPacket *pkt);
574
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
575

    
576
int av_write_trailer(AVFormatContext *s);
577

    
578
void dump_format(AVFormatContext *ic,
579
                 int index, 
580
                 const char *url,
581
                 int is_output);
582
int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
583
int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
584
int64_t parse_date(const char *datestr, int duration);
585

    
586
int64_t av_gettime(void);
587

    
588
/* ffm specific for ffserver */
589
#define FFM_PACKET_SIZE 4096
590
offset_t ffm_read_write_index(int fd);
591
void ffm_write_write_index(int fd, offset_t pos);
592
void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
593

    
594
int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
595

    
596
int get_frame_filename(char *buf, int buf_size,
597
                       const char *path, int number);
598
int filename_number_test(const char *filename);
599

    
600
/* grab specific */
601
int video_grab_init(void);
602
int audio_init(void);
603

    
604
/* DV1394 */
605
int dv1394_init(void);
606

    
607
#ifdef HAVE_AV_CONFIG_H
608

    
609
#include "os_support.h"
610

    
611
int strstart(const char *str, const char *val, const char **ptr);
612
int stristart(const char *str, const char *val, const char **ptr);
613
void pstrcpy(char *buf, int buf_size, const char *str);
614
char *pstrcat(char *buf, int buf_size, const char *s);
615

    
616
void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
617

    
618
#ifdef __GNUC__
619
#define dynarray_add(tab, nb_ptr, elem)\
620
do {\
621
    typeof(tab) _tab = (tab);\
622
    typeof(elem) _elem = (elem);\
623
    (void)sizeof(**_tab == _elem); /* check that types are compatible */\
624
    __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
625
} while(0)
626
#else
627
#define dynarray_add(tab, nb_ptr, elem)\
628
do {\
629
    __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
630
} while(0)
631
#endif
632

    
633
time_t mktimegm(struct tm *tm);
634
struct tm *brktimegm(time_t secs, struct tm *tm);
635
const char *small_strptime(const char *p, const char *fmt, 
636
                           struct tm *dt);
637

    
638
struct in_addr;
639
int resolve_host(struct in_addr *sin_addr, const char *hostname);
640

    
641
void url_split(char *proto, int proto_size,
642
               char *authorization, int authorization_size,
643
               char *hostname, int hostname_size,
644
               int *port_ptr,
645
               char *path, int path_size,
646
               const char *url);
647

    
648
int match_ext(const char *filename, const char *extensions);
649

    
650
#endif /* HAVE_AV_CONFIG_H */
651

    
652
#ifdef __cplusplus
653
}
654
#endif
655

    
656
#endif /* AVFORMAT_H */