Statistics
| Branch: | Revision:

ffmpeg / libavformat / avformat.h @ 3ba1438d

History | View | Annotate | Download (20.4 KB)

1 fb025625 Fabrice Bellard
#ifndef AVFORMAT_H
2
#define AVFORMAT_H
3 de6d9b64 Fabrice Bellard
4 02d697aa Zdenek Kabelac
#ifdef __cplusplus
5
extern "C" {
6
#endif
7
8 3ba1438d Michael Niedermayer
#define LIBAVFORMAT_BUILD       4619
9 8026c3b5 Alex Beregszaszi
10 7b7d86f1 Fabrice Bellard
#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 4b1f4f23 Juanjo
14 f71869a4 Fabrice Bellard
#include <time.h>
15 67070e4f Zdenek Kabelac
#include <stdio.h>  /* FILE */
16 de6d9b64 Fabrice Bellard
#include "avcodec.h"
17
18
#include "avio.h"
19
20
/* packet functions */
21
22 ee404803 Fabrice Bellard
#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 de6d9b64 Fabrice Bellard
typedef struct AVPacket {
31 fb2758c8 Fabrice Bellard
    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 0c1a9eda Zdenek Kabelac
    uint8_t *data;
36 6fa5a56c Fabrice Bellard
    int   size;
37
    int   stream_index;
38
    int   flags;
39 fb2758c8 Fabrice Bellard
    int   duration; /* presentation duration (0 if not available) */
40 6fa5a56c Fabrice Bellard
    void  (*destruct)(struct AVPacket *);
41
    void  *priv;
42 de6d9b64 Fabrice Bellard
} AVPacket; 
43 6fa5a56c Fabrice Bellard
#define PKT_FLAG_KEY   0x0001
44
45 63dd1377 Michael Niedermayer
void av_destruct_packet_nofree(AVPacket *pkt);
46
47 da24c5e3 Fabrice Bellard
/* initialize optional fields of a packet */
48 6fa5a56c Fabrice Bellard
static inline void av_init_packet(AVPacket *pkt)
49
{
50
    pkt->pts   = AV_NOPTS_VALUE;
51 fb2758c8 Fabrice Bellard
    pkt->dts   = AV_NOPTS_VALUE;
52
    pkt->duration = 0;
53 6fa5a56c Fabrice Bellard
    pkt->flags = 0;
54
    pkt->stream_index = 0;
55 63dd1377 Michael Niedermayer
    pkt->destruct= av_destruct_packet_nofree;
56 6fa5a56c Fabrice Bellard
}
57 de6d9b64 Fabrice Bellard
58
int av_new_packet(AVPacket *pkt, int size);
59 fb2758c8 Fabrice Bellard
int av_dup_packet(AVPacket *pkt);
60 6fa5a56c Fabrice Bellard
61
/**
62
 * Free a packet
63
 *
64
 * @param pkt packet to free
65
 */
66
static inline void av_free_packet(AVPacket *pkt)
67
{
68 342474ab Michael Niedermayer
    if (pkt && pkt->destruct) {
69
        pkt->destruct(pkt);
70
    }
71 6fa5a56c Fabrice Bellard
}
72 de6d9b64 Fabrice Bellard
73
/*************************************************/
74 916c80e9 Fabrice Bellard
/* 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 0c1a9eda Zdenek Kabelac
    int64_t val, num, den; 
80 916c80e9 Fabrice Bellard
} AVFrac;
81
82 0c1a9eda Zdenek Kabelac
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 916c80e9 Fabrice Bellard
86
/*************************************************/
87 b9a281db Fabrice Bellard
/* input/output formats */
88 de6d9b64 Fabrice Bellard
89
struct AVFormatContext;
90 b9a281db Fabrice Bellard
91
/* this structure contains the data a format has to probe a file */
92
typedef struct AVProbeData {
93 5c91a675 Zdenek Kabelac
    const char *filename;
94 b9a281db Fabrice Bellard
    unsigned char *buf;
95
    int buf_size;
96
} AVProbeData;
97
98
#define AVPROBE_SCORE_MAX 100
99 de6d9b64 Fabrice Bellard
100
typedef struct AVFormatParameters {
101
    int frame_rate;
102 14bea432 Michael Niedermayer
    int frame_rate_base;
103 de6d9b64 Fabrice Bellard
    int sample_rate;
104
    int channels;
105
    int width;
106
    int height;
107 4606ac8d Zdenek Kabelac
    enum PixelFormat pix_fmt;
108 290c5fa6 Fabrice Bellard
    struct AVImageFormat *image_format;
109 7f172339 Fabrice Bellard
    int channel; /* used to select dv channel */
110
    const char *device; /* video4linux, audio or DV device */
111 e3ee3283 Alex Beregszaszi
    const char *standard; /* tv standard, NTSC, PAL, SECAM */
112 da24c5e3 Fabrice Bellard
    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 fb2758c8 Fabrice Bellard
    int initial_pause:1;       /* do not begin to play the stream
117
                                  immediately (RTSP only) */
118 de6d9b64 Fabrice Bellard
} AVFormatParameters;
119
120 b9a281db Fabrice Bellard
#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 fb025625 Fabrice Bellard
#define AVFMT_RAWPICTURE    0x0020 /* format wants AVPicture structure for
124
                                      raw picture data */
125 b9a281db Fabrice Bellard
126
typedef struct AVOutputFormat {
127 de6d9b64 Fabrice Bellard
    const char *name;
128
    const char *long_name;
129
    const char *mime_type;
130
    const char *extensions; /* comma separated extensions */
131 b9a281db Fabrice Bellard
    /* size of private data so that it can be allocated in the wrapper */
132
    int priv_data_size;
133 de6d9b64 Fabrice Bellard
    /* 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 e928649b Michael Niedermayer
    int (*write_packet)(struct AVFormatContext *, AVPacket *pkt);
138 de6d9b64 Fabrice Bellard
    int (*write_trailer)(struct AVFormatContext *);
139 b9a281db Fabrice Bellard
    /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
140
    int flags;
141 290c5fa6 Fabrice Bellard
    /* currently only used to set pixel format if not YUV420P */
142
    int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *);
143 fe2d6fe2 Michael Niedermayer
    int (*interleave_packet)(struct AVFormatContext *, AVPacket *out, AVPacket *in, int flush);
144 b9a281db Fabrice Bellard
    /* private fields */
145
    struct AVOutputFormat *next;
146
} AVOutputFormat;
147 de6d9b64 Fabrice Bellard
148 b9a281db Fabrice Bellard
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 de6d9b64 Fabrice Bellard
       structure. Return 0 if OK. 'ap' if non NULL contains
157 b9a281db Fabrice Bellard
       additionnal paramters. Only used in raw format right
158
       now. 'av_new_stream' should be called to create new streams.  */
159 de6d9b64 Fabrice Bellard
    int (*read_header)(struct AVFormatContext *,
160
                       AVFormatParameters *ap);
161 b9a281db Fabrice Bellard
    /* 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 da24c5e3 Fabrice Bellard
       AVFMTCTX_NOHEADER is used. */
164 de6d9b64 Fabrice Bellard
    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 3ba1438d Michael Niedermayer
    /** 
169
     * seek to a given timestamp relative to the frames in 
170
     * stream component stream_index
171
     * @param stream_index must not be -1
172
     * @param flags selects which direction should be preferred if no exact 
173
     *              match is available
174
     */
175 fb2758c8 Fabrice Bellard
    int (*read_seek)(struct AVFormatContext *, 
176 3ba1438d Michael Niedermayer
                     int stream_index, int64_t timestamp, int flags);
177 8d14a25c Michael Niedermayer
    /**
178
     * gets the next timestamp in AV_TIME_BASE units.
179
     */
180
    int64_t (*read_timestamp)(struct AVFormatContext *s, int stream_index,
181
                              int64_t *pos, int64_t pos_limit);
182 da24c5e3 Fabrice Bellard
    /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
183 de6d9b64 Fabrice Bellard
    int flags;
184 b9a281db Fabrice Bellard
    /* if extensions are defined, then no probe is done. You should
185
       usually not use extension format guessing because it is not
186
       reliable enough */
187
    const char *extensions;
188
    /* general purpose read only value that the format can use */
189
    int value;
190 fb2758c8 Fabrice Bellard
191
    /* start/resume playing - only meaningful if using a network based format
192
       (RTSP) */
193
    int (*read_play)(struct AVFormatContext *);
194
195
    /* pause playing - only meaningful if using a network based format
196
       (RTSP) */
197
    int (*read_pause)(struct AVFormatContext *);
198
199 b9a281db Fabrice Bellard
    /* private fields */
200
    struct AVInputFormat *next;
201
} AVInputFormat;
202 de6d9b64 Fabrice Bellard
203 fb2758c8 Fabrice Bellard
typedef struct AVIndexEntry {
204
    int64_t pos;
205
    int64_t timestamp;
206
#define AVINDEX_KEYFRAME 0x0001
207 b754978a Michael Niedermayer
/* the following 2 flags indicate that the next/prev keyframe is known, and scaning for it isnt needed */
208 fb2758c8 Fabrice Bellard
    int flags;
209 3e9245a9 Michael Niedermayer
    int min_distance;         /* min distance between this and the previous keyframe, used to avoid unneeded searching */
210 fb2758c8 Fabrice Bellard
} AVIndexEntry;
211
212 de6d9b64 Fabrice Bellard
typedef struct AVStream {
213 b9a281db Fabrice Bellard
    int index;    /* stream index in AVFormatContext */
214
    int id;       /* format specific stream id */
215 de6d9b64 Fabrice Bellard
    AVCodecContext codec; /* codec context */
216 76c0441b Juanjo
    int r_frame_rate;     /* real frame rate of the stream */
217 14bea432 Michael Niedermayer
    int r_frame_rate_base;/* real frame rate base of the stream */
218 de6d9b64 Fabrice Bellard
    void *priv_data;
219 b9a281db Fabrice Bellard
    /* internal data used in av_find_stream_info() */
220 fb2758c8 Fabrice Bellard
    int64_t codec_info_duration;     
221
    int codec_info_nb_frames;
222 da24c5e3 Fabrice Bellard
    /* encoding: PTS generation when outputing stream */
223 1e51d801 Fabrice Bellard
    AVFrac pts;
224 9ee91c2f Michael Niedermayer
    AVRational time_base;
225
    int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */
226 a48b7a6b Fabrice Bellard
    /* ffmpeg.c private use */
227
    int stream_copy; /* if TRUE, just copy stream */
228 1e491e29 Michael Niedermayer
    /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame
229
     * MN:dunno if thats the right place, for it */
230
    float quality; 
231 ee404803 Fabrice Bellard
    /* decoding: position of the first frame of the component, in
232
       AV_TIME_BASE fractional seconds. */
233
    int64_t start_time; 
234
    /* decoding: duration of the stream, in AV_TIME_BASE fractional
235
       seconds. */
236
    int64_t duration;
237 fb2758c8 Fabrice Bellard
238
    /* av_read_frame() support */
239
    int need_parsing;
240
    struct AVCodecParserContext *parser;
241 6ec87caa Fabrice Bellard
242 fb2758c8 Fabrice Bellard
    int64_t cur_dts;
243
    int last_IP_duration;
244 77405fc8 Michael Niedermayer
    int64_t last_IP_pts;
245 fb2758c8 Fabrice Bellard
    /* av_seek_frame() support */
246
    AVIndexEntry *index_entries; /* only used if the format does not
247
                                    support seeking natively */
248
    int nb_index_entries;
249
    int index_entries_allocated_size;
250 de6d9b64 Fabrice Bellard
} AVStream;
251
252 da24c5e3 Fabrice Bellard
#define AVFMTCTX_NOHEADER      0x0001 /* signal that no header is present
253
                                         (streams are added dynamically) */
254
255 de6d9b64 Fabrice Bellard
#define MAX_STREAMS 20
256
257
/* format I/O context */
258
typedef struct AVFormatContext {
259 7fea94ce Zdenek Kabelac
    const AVClass *av_class; /* set by av_alloc_format_context */
260 b9a281db Fabrice Bellard
    /* can only be iformat or oformat, not both at the same time */
261
    struct AVInputFormat *iformat;
262
    struct AVOutputFormat *oformat;
263 de6d9b64 Fabrice Bellard
    void *priv_data;
264
    ByteIOContext pb;
265
    int nb_streams;
266
    AVStream *streams[MAX_STREAMS];
267
    char filename[1024]; /* input or output filename */
268
    /* stream info */
269 4568325a Roman Shaposhnik
    int64_t timestamp;
270 de6d9b64 Fabrice Bellard
    char title[512];
271
    char author[512];
272
    char copyright[512];
273
    char comment[512];
274 6a58e151 Fabrice Bellard
    char album[512];
275
    int year;  /* ID3 year, 0 if none */
276
    int track; /* track number, 0 if none */
277
    char genre[32]; /* ID3 genre */
278
279 da24c5e3 Fabrice Bellard
    int ctx_flags; /* format specific flags, see AVFMTCTX_xx */
280 916c80e9 Fabrice Bellard
    /* private data for pts handling (do not modify directly) */
281 de6d9b64 Fabrice Bellard
    /* This buffer is only needed when packets were already buffered but
282
       not decoded, for example to get the codec parameters in mpeg
283
       streams */
284 ee404803 Fabrice Bellard
    struct AVPacketList *packet_buffer;
285
286
    /* decoding: position of the first frame of the component, in
287
       AV_TIME_BASE fractional seconds. NEVER set this value directly:
288
       it is deduced from the AVStream values.  */
289
    int64_t start_time; 
290
    /* decoding: duration of the stream, in AV_TIME_BASE fractional
291
       seconds. NEVER set this value directly: it is deduced from the
292
       AVStream values.  */
293
    int64_t duration;
294
    /* decoding: total file size. 0 if unknown */
295
    int64_t file_size;
296
    /* decoding: total stream bitrate in bit/s, 0 if not
297
       available. Never set it directly if the file_size and the
298
       duration are known as ffmpeg can compute it automatically. */
299
    int bit_rate;
300 fb2758c8 Fabrice Bellard
301
    /* av_read_frame() support */
302
    AVStream *cur_st;
303
    const uint8_t *cur_ptr;
304
    int cur_len;
305
    AVPacket cur_pkt;
306
307
    /* av_seek_frame() support */
308
    int64_t data_offset; /* offset of the first packet */
309
    int index_built;
310 2db3c638 Michael Niedermayer
    
311
    int mux_rate;
312
    int packet_size;
313 de6d9b64 Fabrice Bellard
} AVFormatContext;
314
315
typedef struct AVPacketList {
316
    AVPacket pkt;
317
    struct AVPacketList *next;
318
} AVPacketList;
319
320 b9a281db Fabrice Bellard
extern AVInputFormat *first_iformat;
321
extern AVOutputFormat *first_oformat;
322 de6d9b64 Fabrice Bellard
323 290c5fa6 Fabrice Bellard
/* still image support */
324
struct AVInputImageContext;
325
typedef struct AVInputImageContext AVInputImageContext;
326
327
typedef struct AVImageInfo {
328
    enum PixelFormat pix_fmt; /* requested pixel format */
329
    int width; /* requested width */
330
    int height; /* requested height */
331 7e2e1abf Fabrice Bellard
    int interleaved; /* image is interleaved (e.g. interleaved GIF) */
332 290c5fa6 Fabrice Bellard
    AVPicture pict; /* returned allocated image */
333
} AVImageInfo;
334
335 3b1a27e0 Fabrice Bellard
/* AVImageFormat.flags field constants */
336 7e2e1abf Fabrice Bellard
#define AVIMAGE_INTERLEAVED 0x0001 /* image format support interleaved output */
337 3b1a27e0 Fabrice Bellard
338 290c5fa6 Fabrice Bellard
typedef struct AVImageFormat {
339
    const char *name;
340
    const char *extensions;
341
    /* tell if a given file has a chance of being parsing by this format */
342
    int (*img_probe)(AVProbeData *);
343
    /* read a whole image. 'alloc_cb' is called when the image size is
344
       known so that the caller can allocate the image. If 'allo_cb'
345
       returns non zero, then the parsing is aborted. Return '0' if
346
       OK. */
347
    int (*img_read)(ByteIOContext *, 
348
                    int (*alloc_cb)(void *, AVImageInfo *info), void *);
349
    /* write the image */
350
    int supported_pixel_formats; /* mask of supported formats for output */
351
    int (*img_write)(ByteIOContext *, AVImageInfo *);
352 3b1a27e0 Fabrice Bellard
    int flags;
353 290c5fa6 Fabrice Bellard
    struct AVImageFormat *next;
354
} AVImageFormat;
355
356
void av_register_image_format(AVImageFormat *img_fmt);
357
AVImageFormat *av_probe_image_format(AVProbeData *pd);
358
AVImageFormat *guess_image_format(const char *filename);
359
int av_read_image(ByteIOContext *pb, const char *filename,
360
                  AVImageFormat *fmt,
361
                  int (*alloc_cb)(void *, AVImageInfo *info), void *opaque);
362
int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img);
363
364
extern AVImageFormat *first_image_format;
365
366
extern AVImageFormat pnm_image_format;
367
extern AVImageFormat pbm_image_format;
368
extern AVImageFormat pgm_image_format;
369
extern AVImageFormat ppm_image_format;
370 8975ba81 Fabrice Bellard
extern AVImageFormat pam_image_format;
371 290c5fa6 Fabrice Bellard
extern AVImageFormat pgmyuv_image_format;
372
extern AVImageFormat yuv_image_format;
373 3a13f6bd Zdenek Kabelac
#ifdef CONFIG_ZLIB
374 0e04e4e9 Fabrice Bellard
extern AVImageFormat png_image_format;
375 3a13f6bd Zdenek Kabelac
#endif
376 0250738f Fabrice Bellard
extern AVImageFormat jpeg_image_format;
377 cdc90af0 Fabrice Bellard
extern AVImageFormat gif_image_format;
378 6a91ec51 Mike Melanson
extern AVImageFormat sgi_image_format;
379 290c5fa6 Fabrice Bellard
380 b9a281db Fabrice Bellard
/* XXX: use automatic init with either ELF sections or C file parser */
381
/* modules */
382 de6d9b64 Fabrice Bellard
383 b9a281db Fabrice Bellard
/* mpeg.c */
384 ee404803 Fabrice Bellard
extern AVInputFormat mpegps_demux;
385 b9a281db Fabrice Bellard
int mpegps_init(void);
386
387
/* mpegts.c */
388
extern AVInputFormat mpegts_demux;
389
int mpegts_init(void);
390 de6d9b64 Fabrice Bellard
391 b9a281db Fabrice Bellard
/* rm.c */
392
int rm_init(void);
393
394
/* crc.c */
395
int crc_init(void);
396
397
/* img.c */
398
int img_init(void);
399
400 03cfe134 Michael Niedermayer
/* img2.c */
401
int img2_init(void);
402
403 b9a281db Fabrice Bellard
/* asf.c */
404
int asf_init(void);
405 de6d9b64 Fabrice Bellard
406
/* avienc.c */
407 b9a281db Fabrice Bellard
int avienc_init(void);
408 de6d9b64 Fabrice Bellard
409 b9a281db Fabrice Bellard
/* avidec.c */
410
int avidec_init(void);
411 6cea494e Zdenek Kabelac
412 b9a281db Fabrice Bellard
/* swf.c */
413
int swf_init(void);
414
415
/* mov.c */
416
int mov_init(void);
417 de6d9b64 Fabrice Bellard
418 1cb5f7fd Michael Niedermayer
/* movenc.c */
419
int movenc_init(void);
420
421 d4f5d74a Garrick Meeker
/* flvenc.c */
422
int flvenc_init(void);
423
424
/* flvdec.c */
425
int flvdec_init(void);
426
427 b9a281db Fabrice Bellard
/* jpeg.c */
428
int jpeg_init(void);
429 de6d9b64 Fabrice Bellard
430 6cea494e Zdenek Kabelac
/* gif.c */
431 b9a281db Fabrice Bellard
int gif_init(void);
432
433 6cea494e Zdenek Kabelac
/* au.c */
434 b9a281db Fabrice Bellard
int au_init(void);
435 6cea494e Zdenek Kabelac
436 bc634f6f Zdenek Kabelac
/* amr.c */
437
int amr_init(void);
438
439 de6d9b64 Fabrice Bellard
/* wav.c */
440 c3775e54 Ronald S. Bultje
int ff_wav_init(void);
441 de6d9b64 Fabrice Bellard
442
/* raw.c */
443 fb2758c8 Fabrice Bellard
int pcm_read_seek(AVFormatContext *s, 
444
                  int stream_index, int64_t timestamp);
445 b9a281db Fabrice Bellard
int raw_init(void);
446 de6d9b64 Fabrice Bellard
447 6a58e151 Fabrice Bellard
/* mp3.c */
448
int mp3_init(void);
449
450 2864dfd5 D Richard Felker III
/* yuv4mpeg.c */
451
int yuv4mpeg_init(void);
452
453 81e0d0b4 Mark Hills
/* ogg.c */
454
int ogg_init(void);
455
456 f20dca40 Fabrice Bellard
/* dv.c */
457 c3775e54 Ronald S. Bultje
int ff_dv_init(void);
458 f20dca40 Fabrice Bellard
459 de6d9b64 Fabrice Bellard
/* ffm.c */
460 b9a281db Fabrice Bellard
int ffm_init(void);
461 de6d9b64 Fabrice Bellard
462 fb025625 Fabrice Bellard
/* rtsp.c */
463
extern AVInputFormat redir_demux;
464
int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
465
466 3c96b4ef Mike Melanson
/* 4xm.c */
467
int fourxm_init(void);
468
469 3f16d933 Mike Melanson
/* psxstr.c */
470
int str_init(void);
471
472 3ef8be2b Mike Melanson
/* idroq.c */
473
int roq_init(void);
474
475
/* ipmovie.c */
476
int ipmovie_init(void);
477
478 3aa180b8 Alex Beregszaszi
/* nut.c */
479
int nut_init(void);
480
481 493645eb Mike Melanson
/* wc3movie.c */
482
int wc3_init(void);
483
484 2fdf638b Mike Melanson
/* westwood.c */
485
int westwood_init(void);
486
487
/* segafilm.c */
488
int film_init(void);
489
490 4120a53a Mike Melanson
/* idcin.c */
491
int idcin_init(void);
492
493 42cad81a Mike Melanson
/* flic.c */
494
int flic_init(void);
495
496 a7eb3c8d Mike Melanson
/* sierravmd.c */
497
int vmd_init(void);
498
499 08abe0fd Michael Niedermayer
/* matroska.c */
500
int matroska_init(void);
501
502 d08d7142 Mike Melanson
/* sol.c */
503
int sol_init(void);
504
505 fb025625 Fabrice Bellard
#include "rtp.h"
506
507
#include "rtsp.h"
508
509 290c5fa6 Fabrice Bellard
/* yuv4mpeg.c */
510
extern AVOutputFormat yuv4mpegpipe_oformat;
511
512 b9a281db Fabrice Bellard
/* utils.c */
513
void av_register_input_format(AVInputFormat *format);
514
void av_register_output_format(AVOutputFormat *format);
515 36ada60c Philip Gladstone
AVOutputFormat *guess_stream_format(const char *short_name, 
516
                                    const char *filename, const char *mime_type);
517 b9a281db Fabrice Bellard
AVOutputFormat *guess_format(const char *short_name, 
518
                             const char *filename, const char *mime_type);
519 de6d9b64 Fabrice Bellard
520 fb2758c8 Fabrice Bellard
void av_hex_dump(FILE *f, uint8_t *buf, int size);
521
void av_pkt_dump(FILE *f, AVPacket *pkt, int dump_payload);
522 de6d9b64 Fabrice Bellard
523 94988531 Fabrice Bellard
void av_register_all(void);
524 de6d9b64 Fabrice Bellard
525
typedef struct FifoBuffer {
526 0c1a9eda Zdenek Kabelac
    uint8_t *buffer;
527
    uint8_t *rptr, *wptr, *end;
528 de6d9b64 Fabrice Bellard
} FifoBuffer;
529
530
int fifo_init(FifoBuffer *f, int size);
531
void fifo_free(FifoBuffer *f);
532 0c1a9eda Zdenek Kabelac
int fifo_size(FifoBuffer *f, uint8_t *rptr);
533
int fifo_read(FifoBuffer *f, uint8_t *buf, int buf_size, uint8_t **rptr_ptr);
534
void fifo_write(FifoBuffer *f, uint8_t *buf, int size, uint8_t **wptr_ptr);
535 7000a175 Michael Niedermayer
int put_fifo(ByteIOContext *pb, FifoBuffer *f, int buf_size, uint8_t **rptr_ptr);
536 de6d9b64 Fabrice Bellard
537 b9a281db Fabrice Bellard
/* media file input */
538
AVInputFormat *av_find_input_format(const char *short_name);
539 94988531 Fabrice Bellard
AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
540 da24c5e3 Fabrice Bellard
int av_open_input_stream(AVFormatContext **ic_ptr, 
541
                         ByteIOContext *pb, const char *filename, 
542
                         AVInputFormat *fmt, AVFormatParameters *ap);
543 b9a281db Fabrice Bellard
int av_open_input_file(AVFormatContext **ic_ptr, const char *filename, 
544
                       AVInputFormat *fmt,
545
                       int buf_size,
546
                       AVFormatParameters *ap);
547 bc874dae Michel Bardiaux
/* no av_open for output, so applications will need this: */
548
AVFormatContext *av_alloc_format_context(void);
549 b9a281db Fabrice Bellard
550
#define AVERROR_UNKNOWN     (-1)  /* unknown error */
551
#define AVERROR_IO          (-2)  /* i/o error */
552
#define AVERROR_NUMEXPECTED (-3)  /* number syntax expected in filename */
553
#define AVERROR_INVALIDDATA (-4)  /* invalid data found */
554
#define AVERROR_NOMEM       (-5)  /* not enough memory */
555
#define AVERROR_NOFMT       (-6)  /* unknown format */
556 fb2758c8 Fabrice Bellard
#define AVERROR_NOTSUPP     (-7)  /* operation not supported */
557
 
558 b9a281db Fabrice Bellard
int av_find_stream_info(AVFormatContext *ic);
559 de6d9b64 Fabrice Bellard
int av_read_packet(AVFormatContext *s, AVPacket *pkt);
560 fb2758c8 Fabrice Bellard
int av_read_frame(AVFormatContext *s, AVPacket *pkt);
561 3ba1438d Michael Niedermayer
int av_seek_frame(AVFormatContext *s, int stream_index, int64_t timestamp, int flags);
562 fb2758c8 Fabrice Bellard
int av_read_play(AVFormatContext *s);
563
int av_read_pause(AVFormatContext *s);
564 de6d9b64 Fabrice Bellard
void av_close_input_file(AVFormatContext *s);
565 b9a281db Fabrice Bellard
AVStream *av_new_stream(AVFormatContext *s, int id);
566 9ee91c2f Michael Niedermayer
void av_set_pts_info(AVStream *s, int pts_wrap_bits,
567 916c80e9 Fabrice Bellard
                     int pts_num, int pts_den);
568 de6d9b64 Fabrice Bellard
569 3ba1438d Michael Niedermayer
#define AVSEEK_FLAG_BACKWARD 1 ///< seek backward
570
#define AVSEEK_FLAG_BYTE     2 ///< seeking based on position in bytes
571
572 b754978a Michael Niedermayer
int av_find_default_stream_index(AVFormatContext *s);
573 3ba1438d Michael Niedermayer
int av_index_search_timestamp(AVStream *st, int timestamp, int flags);
574 3e9245a9 Michael Niedermayer
int av_add_index_entry(AVStream *st,
575
                       int64_t pos, int64_t timestamp, int distance, int flags);
576 3ba1438d Michael Niedermayer
int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts, int flags);
577 b754978a Michael Niedermayer
578 b9a281db Fabrice Bellard
/* media file output */
579 290c5fa6 Fabrice Bellard
int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap);
580 b9a281db Fabrice Bellard
int av_write_header(AVFormatContext *s);
581 e928649b Michael Niedermayer
int av_write_frame(AVFormatContext *s, AVPacket *pkt);
582 3c895fc0 Michael Niedermayer
int av_interleaved_write_frame(AVFormatContext *s, AVPacket *pkt);
583 e928649b Michael Niedermayer
584 b9a281db Fabrice Bellard
int av_write_trailer(AVFormatContext *s);
585 de6d9b64 Fabrice Bellard
586
void dump_format(AVFormatContext *ic,
587
                 int index, 
588
                 const char *url,
589
                 int is_output);
590
int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
591 445f1b83 Roman Shaposhnik
int parse_frame_rate(int *frame_rate, int *frame_rate_base, const char *arg);
592 0c1a9eda Zdenek Kabelac
int64_t parse_date(const char *datestr, int duration);
593 de6d9b64 Fabrice Bellard
594 0c1a9eda Zdenek Kabelac
int64_t av_gettime(void);
595 94988531 Fabrice Bellard
596 de6d9b64 Fabrice Bellard
/* ffm specific for ffserver */
597
#define FFM_PACKET_SIZE 4096
598
offset_t ffm_read_write_index(int fd);
599
void ffm_write_write_index(int fd, offset_t pos);
600
void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
601
602
int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
603
604 813cae4b Fabrice Bellard
int get_frame_filename(char *buf, int buf_size,
605
                       const char *path, int number);
606 b9a281db Fabrice Bellard
int filename_number_test(const char *filename);
607 96baaa6a Fabrice Bellard
608 b9a281db Fabrice Bellard
/* grab specific */
609
int video_grab_init(void);
610
int audio_init(void);
611 96baaa6a Fabrice Bellard
612 86fd51fb Fabrice Bellard
/* DV1394 */
613
int dv1394_init(void);
614 fb025625 Fabrice Bellard
615
#ifdef HAVE_AV_CONFIG_H
616 f71869a4 Fabrice Bellard
617
#include "os_support.h"
618
619 fb025625 Fabrice Bellard
int strstart(const char *str, const char *val, const char **ptr);
620
int stristart(const char *str, const char *val, const char **ptr);
621
void pstrcpy(char *buf, int buf_size, const char *str);
622
char *pstrcat(char *buf, int buf_size, const char *s);
623
624 39f472c3 Fabrice Bellard
void __dynarray_add(unsigned long **tab_ptr, int *nb_ptr, unsigned long elem);
625
626 e4e70d2e Falk Hüffner
#ifdef __GNUC__
627 39f472c3 Fabrice Bellard
#define dynarray_add(tab, nb_ptr, elem)\
628
do {\
629
    typeof(tab) _tab = (tab);\
630
    typeof(elem) _elem = (elem);\
631
    (void)sizeof(**_tab == _elem); /* check that types are compatible */\
632
    __dynarray_add((unsigned long **)_tab, nb_ptr, (unsigned long)_elem);\
633
} while(0)
634 e4e70d2e Falk Hüffner
#else
635
#define dynarray_add(tab, nb_ptr, elem)\
636
do {\
637
    __dynarray_add((unsigned long **)(tab), nb_ptr, (unsigned long)(elem));\
638
} while(0)
639
#endif
640 39f472c3 Fabrice Bellard
641 f71869a4 Fabrice Bellard
time_t mktimegm(struct tm *tm);
642 0c9fc6e1 Roman Shaposhnik
struct tm *brktimegm(time_t secs, struct tm *tm);
643 f71869a4 Fabrice Bellard
const char *small_strptime(const char *p, const char *fmt, 
644
                           struct tm *dt);
645
646 fb025625 Fabrice Bellard
struct in_addr;
647
int resolve_host(struct in_addr *sin_addr, const char *hostname);
648
649
void url_split(char *proto, int proto_size,
650 6ba5cbc6 Petr Doubek
               char *authorization, int authorization_size,
651 fb025625 Fabrice Bellard
               char *hostname, int hostname_size,
652
               int *port_ptr,
653
               char *path, int path_size,
654
               const char *url);
655
656 a941f391 Fabrice Bellard
int match_ext(const char *filename, const char *extensions);
657
658 fb025625 Fabrice Bellard
#endif /* HAVE_AV_CONFIG_H */
659
660 02d697aa Zdenek Kabelac
#ifdef __cplusplus
661
}
662
#endif
663
664 fb025625 Fabrice Bellard
#endif /* AVFORMAT_H */