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fb025625 FB |
1 | #ifndef AVFORMAT_H |
2 | #define AVFORMAT_H | |
de6d9b64 | 3 | |
02d697aa ZK |
4 | #ifdef __cplusplus |
5 | extern "C" { | |
6 | #endif | |
7 | ||
94988531 FB |
8 | #define LIBAVFORMAT_VERSION_INT 0x000406 |
9 | #define LIBAVFORMAT_VERSION "0.4.6" | |
290c5fa6 | 10 | #define LIBAVFORMAT_BUILD 4603 |
4b1f4f23 | 11 | |
de6d9b64 FB |
12 | #include "avcodec.h" |
13 | ||
de6d9b64 FB |
14 | #include "avio.h" |
15 | ||
16 | /* packet functions */ | |
17 | ||
fb025625 FB |
18 | #define AV_NOPTS_VALUE 0 |
19 | ||
de6d9b64 | 20 | typedef struct AVPacket { |
916c80e9 | 21 | INT64 pts; /* presentation time stamp in stream units (set av_set_pts_info) */ |
de6d9b64 FB |
22 | UINT8 *data; |
23 | int size; | |
24 | int stream_index; | |
25 | int flags; | |
6d9872f4 | 26 | int duration; |
de6d9b64 FB |
27 | #define PKT_FLAG_KEY 0x0001 |
28 | } AVPacket; | |
29 | ||
30 | int av_new_packet(AVPacket *pkt, int size); | |
31 | void av_free_packet(AVPacket *pkt); | |
32 | ||
33 | /*************************************************/ | |
916c80e9 FB |
34 | /* fractional numbers for exact pts handling */ |
35 | ||
36 | /* the exact value of the fractional number is: 'val + num / den'. num | |
37 | is assumed to be such as 0 <= num < den */ | |
38 | typedef struct AVFrac { | |
39 | INT64 val, num, den; | |
40 | } AVFrac; | |
41 | ||
42 | void av_frac_init(AVFrac *f, INT64 val, INT64 num, INT64 den); | |
43 | void av_frac_add(AVFrac *f, INT64 incr); | |
44 | void av_frac_set(AVFrac *f, INT64 val); | |
45 | ||
46 | /*************************************************/ | |
b9a281db | 47 | /* input/output formats */ |
de6d9b64 FB |
48 | |
49 | struct AVFormatContext; | |
b9a281db FB |
50 | |
51 | /* this structure contains the data a format has to probe a file */ | |
52 | typedef struct AVProbeData { | |
53 | char *filename; | |
54 | unsigned char *buf; | |
55 | int buf_size; | |
56 | } AVProbeData; | |
57 | ||
58 | #define AVPROBE_SCORE_MAX 100 | |
de6d9b64 FB |
59 | |
60 | typedef struct AVFormatParameters { | |
61 | int frame_rate; | |
62 | int sample_rate; | |
63 | int channels; | |
64 | int width; | |
65 | int height; | |
4606ac8d | 66 | enum PixelFormat pix_fmt; |
290c5fa6 | 67 | struct AVImageFormat *image_format; |
7f172339 FB |
68 | int channel; /* used to select dv channel */ |
69 | const char *device; /* video4linux, audio or DV device */ | |
de6d9b64 FB |
70 | } AVFormatParameters; |
71 | ||
b9a281db FB |
72 | #define AVFMT_NOFILE 0x0001 /* no file should be opened */ |
73 | #define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */ | |
74 | #define AVFMT_NOHEADER 0x0004 /* signal that no header is present | |
75 | (streams are added dynamically) */ | |
76 | #define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */ | |
fb025625 FB |
77 | #define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for |
78 | raw picture data */ | |
b9a281db FB |
79 | |
80 | typedef struct AVOutputFormat { | |
de6d9b64 FB |
81 | const char *name; |
82 | const char *long_name; | |
83 | const char *mime_type; | |
84 | const char *extensions; /* comma separated extensions */ | |
b9a281db FB |
85 | /* size of private data so that it can be allocated in the wrapper */ |
86 | int priv_data_size; | |
de6d9b64 FB |
87 | /* output support */ |
88 | enum CodecID audio_codec; /* default audio codec */ | |
89 | enum CodecID video_codec; /* default video codec */ | |
90 | int (*write_header)(struct AVFormatContext *); | |
1e51d801 | 91 | /* XXX: change prototype for 64 bit pts */ |
de6d9b64 FB |
92 | int (*write_packet)(struct AVFormatContext *, |
93 | int stream_index, | |
10bb7023 | 94 | unsigned char *buf, int size, int force_pts); |
de6d9b64 | 95 | int (*write_trailer)(struct AVFormatContext *); |
b9a281db FB |
96 | /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */ |
97 | int flags; | |
290c5fa6 FB |
98 | /* currently only used to set pixel format if not YUV420P */ |
99 | int (*set_parameters)(struct AVFormatContext *, AVFormatParameters *); | |
b9a281db FB |
100 | /* private fields */ |
101 | struct AVOutputFormat *next; | |
102 | } AVOutputFormat; | |
de6d9b64 | 103 | |
b9a281db FB |
104 | typedef struct AVInputFormat { |
105 | const char *name; | |
106 | const char *long_name; | |
107 | /* size of private data so that it can be allocated in the wrapper */ | |
108 | int priv_data_size; | |
109 | /* tell if a given file has a chance of being parsing by this format */ | |
110 | int (*read_probe)(AVProbeData *); | |
111 | /* read the format header and initialize the AVFormatContext | |
de6d9b64 | 112 | structure. Return 0 if OK. 'ap' if non NULL contains |
b9a281db FB |
113 | additionnal paramters. Only used in raw format right |
114 | now. 'av_new_stream' should be called to create new streams. */ | |
de6d9b64 FB |
115 | int (*read_header)(struct AVFormatContext *, |
116 | AVFormatParameters *ap); | |
b9a281db FB |
117 | /* read one packet and put it in 'pkt'. pts and flags are also |
118 | set. 'av_new_stream' can be called only if the flag | |
119 | AVFMT_NOHEADER is used. */ | |
de6d9b64 FB |
120 | int (*read_packet)(struct AVFormatContext *, AVPacket *pkt); |
121 | /* close the stream. The AVFormatContext and AVStreams are not | |
122 | freed by this function */ | |
123 | int (*read_close)(struct AVFormatContext *); | |
124 | /* seek at or before a given pts (given in microsecond). The pts | |
125 | origin is defined by the stream */ | |
126 | int (*read_seek)(struct AVFormatContext *, INT64 pts); | |
b9a281db | 127 | /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_NOHEADER */ |
de6d9b64 | 128 | int flags; |
b9a281db FB |
129 | /* if extensions are defined, then no probe is done. You should |
130 | usually not use extension format guessing because it is not | |
131 | reliable enough */ | |
132 | const char *extensions; | |
133 | /* general purpose read only value that the format can use */ | |
134 | int value; | |
135 | /* private fields */ | |
136 | struct AVInputFormat *next; | |
137 | } AVInputFormat; | |
de6d9b64 FB |
138 | |
139 | typedef struct AVStream { | |
b9a281db FB |
140 | int index; /* stream index in AVFormatContext */ |
141 | int id; /* format specific stream id */ | |
de6d9b64 | 142 | AVCodecContext codec; /* codec context */ |
76c0441b | 143 | int r_frame_rate; /* real frame rate of the stream */ |
2a10020b | 144 | uint64_t time_length; /* real length of the stream in miliseconds */ |
de6d9b64 | 145 | void *priv_data; |
b9a281db FB |
146 | /* internal data used in av_find_stream_info() */ |
147 | int codec_info_state; | |
148 | int codec_info_nb_repeat_frames; | |
149 | int codec_info_nb_real_frames; | |
1e51d801 FB |
150 | /* PTS generation when outputing stream */ |
151 | AVFrac pts; | |
a48b7a6b FB |
152 | /* ffmpeg.c private use */ |
153 | int stream_copy; /* if TRUE, just copy stream */ | |
1e491e29 MN |
154 | /* quality, as it has been removed from AVCodecContext and put in AVVideoFrame |
155 | * MN:dunno if thats the right place, for it */ | |
156 | float quality; | |
de6d9b64 FB |
157 | } AVStream; |
158 | ||
159 | #define MAX_STREAMS 20 | |
160 | ||
161 | /* format I/O context */ | |
162 | typedef struct AVFormatContext { | |
b9a281db FB |
163 | /* can only be iformat or oformat, not both at the same time */ |
164 | struct AVInputFormat *iformat; | |
165 | struct AVOutputFormat *oformat; | |
de6d9b64 FB |
166 | void *priv_data; |
167 | ByteIOContext pb; | |
168 | int nb_streams; | |
169 | AVStream *streams[MAX_STREAMS]; | |
170 | char filename[1024]; /* input or output filename */ | |
171 | /* stream info */ | |
172 | char title[512]; | |
173 | char author[512]; | |
174 | char copyright[512]; | |
175 | char comment[512]; | |
92b3e125 | 176 | int flags; /* format specific flags */ |
916c80e9 FB |
177 | /* private data for pts handling (do not modify directly) */ |
178 | int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */ | |
179 | int pts_num, pts_den; /* value to convert to seconds */ | |
de6d9b64 FB |
180 | /* This buffer is only needed when packets were already buffered but |
181 | not decoded, for example to get the codec parameters in mpeg | |
182 | streams */ | |
183 | struct AVPacketList *packet_buffer; | |
184 | } AVFormatContext; | |
185 | ||
186 | typedef struct AVPacketList { | |
187 | AVPacket pkt; | |
188 | struct AVPacketList *next; | |
189 | } AVPacketList; | |
190 | ||
b9a281db FB |
191 | extern AVInputFormat *first_iformat; |
192 | extern AVOutputFormat *first_oformat; | |
de6d9b64 | 193 | |
290c5fa6 FB |
194 | /* still image support */ |
195 | struct AVInputImageContext; | |
196 | typedef struct AVInputImageContext AVInputImageContext; | |
197 | ||
198 | typedef struct AVImageInfo { | |
199 | enum PixelFormat pix_fmt; /* requested pixel format */ | |
200 | int width; /* requested width */ | |
201 | int height; /* requested height */ | |
202 | AVPicture pict; /* returned allocated image */ | |
203 | } AVImageInfo; | |
204 | ||
205 | typedef struct AVImageFormat { | |
206 | const char *name; | |
207 | const char *extensions; | |
208 | /* tell if a given file has a chance of being parsing by this format */ | |
209 | int (*img_probe)(AVProbeData *); | |
210 | /* read a whole image. 'alloc_cb' is called when the image size is | |
211 | known so that the caller can allocate the image. If 'allo_cb' | |
212 | returns non zero, then the parsing is aborted. Return '0' if | |
213 | OK. */ | |
214 | int (*img_read)(ByteIOContext *, | |
215 | int (*alloc_cb)(void *, AVImageInfo *info), void *); | |
216 | /* write the image */ | |
217 | int supported_pixel_formats; /* mask of supported formats for output */ | |
218 | int (*img_write)(ByteIOContext *, AVImageInfo *); | |
219 | struct AVImageFormat *next; | |
220 | } AVImageFormat; | |
221 | ||
222 | void av_register_image_format(AVImageFormat *img_fmt); | |
223 | AVImageFormat *av_probe_image_format(AVProbeData *pd); | |
224 | AVImageFormat *guess_image_format(const char *filename); | |
225 | int av_read_image(ByteIOContext *pb, const char *filename, | |
226 | AVImageFormat *fmt, | |
227 | int (*alloc_cb)(void *, AVImageInfo *info), void *opaque); | |
228 | int av_write_image(ByteIOContext *pb, AVImageFormat *fmt, AVImageInfo *img); | |
229 | ||
230 | extern AVImageFormat *first_image_format; | |
231 | ||
232 | extern AVImageFormat pnm_image_format; | |
233 | extern AVImageFormat pbm_image_format; | |
234 | extern AVImageFormat pgm_image_format; | |
235 | extern AVImageFormat ppm_image_format; | |
236 | extern AVImageFormat pgmyuv_image_format; | |
237 | extern AVImageFormat yuv_image_format; | |
0e04e4e9 | 238 | extern AVImageFormat png_image_format; |
0250738f | 239 | extern AVImageFormat jpeg_image_format; |
cdc90af0 | 240 | extern AVImageFormat gif_image_format; |
290c5fa6 | 241 | |
b9a281db FB |
242 | /* XXX: use automatic init with either ELF sections or C file parser */ |
243 | /* modules */ | |
de6d9b64 | 244 | |
b9a281db | 245 | /* mpeg.c */ |
b9a281db FB |
246 | int mpegps_init(void); |
247 | ||
248 | /* mpegts.c */ | |
249 | extern AVInputFormat mpegts_demux; | |
250 | int mpegts_init(void); | |
de6d9b64 | 251 | |
b9a281db FB |
252 | /* rm.c */ |
253 | int rm_init(void); | |
254 | ||
255 | /* crc.c */ | |
256 | int crc_init(void); | |
257 | ||
258 | /* img.c */ | |
259 | int img_init(void); | |
260 | ||
261 | /* asf.c */ | |
262 | int asf_init(void); | |
de6d9b64 FB |
263 | |
264 | /* avienc.c */ | |
b9a281db | 265 | int avienc_init(void); |
de6d9b64 | 266 | |
b9a281db FB |
267 | /* avidec.c */ |
268 | int avidec_init(void); | |
6cea494e | 269 | |
b9a281db FB |
270 | /* swf.c */ |
271 | int swf_init(void); | |
272 | ||
273 | /* mov.c */ | |
274 | int mov_init(void); | |
de6d9b64 | 275 | |
b9a281db FB |
276 | /* jpeg.c */ |
277 | int jpeg_init(void); | |
de6d9b64 | 278 | |
6cea494e | 279 | /* gif.c */ |
b9a281db FB |
280 | int gif_init(void); |
281 | ||
6cea494e | 282 | /* au.c */ |
b9a281db | 283 | int au_init(void); |
6cea494e | 284 | |
de6d9b64 | 285 | /* wav.c */ |
b9a281db | 286 | int wav_init(void); |
de6d9b64 FB |
287 | |
288 | /* raw.c */ | |
b9a281db | 289 | int raw_init(void); |
de6d9b64 | 290 | |
81e0d0b4 MH |
291 | /* ogg.c */ |
292 | int ogg_init(void); | |
293 | ||
f20dca40 FB |
294 | /* dv.c */ |
295 | int dv_init(void); | |
296 | ||
de6d9b64 | 297 | /* ffm.c */ |
b9a281db | 298 | int ffm_init(void); |
de6d9b64 | 299 | |
fb025625 FB |
300 | /* rtsp.c */ |
301 | extern AVInputFormat redir_demux; | |
302 | int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f); | |
303 | ||
304 | #include "rtp.h" | |
305 | ||
306 | #include "rtsp.h" | |
307 | ||
290c5fa6 FB |
308 | /* yuv4mpeg.c */ |
309 | extern AVOutputFormat yuv4mpegpipe_oformat; | |
310 | ||
b9a281db | 311 | /* utils.c */ |
de6d9b64 FB |
312 | #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24)) |
313 | #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24)) | |
314 | ||
b9a281db FB |
315 | void av_register_input_format(AVInputFormat *format); |
316 | void av_register_output_format(AVOutputFormat *format); | |
36ada60c PG |
317 | AVOutputFormat *guess_stream_format(const char *short_name, |
318 | const char *filename, const char *mime_type); | |
b9a281db FB |
319 | AVOutputFormat *guess_format(const char *short_name, |
320 | const char *filename, const char *mime_type); | |
de6d9b64 | 321 | |
b9a281db | 322 | void av_hex_dump(UINT8 *buf, int size); |
de6d9b64 | 323 | |
94988531 | 324 | void av_register_all(void); |
de6d9b64 FB |
325 | |
326 | typedef struct FifoBuffer { | |
327 | UINT8 *buffer; | |
328 | UINT8 *rptr, *wptr, *end; | |
329 | } FifoBuffer; | |
330 | ||
331 | int fifo_init(FifoBuffer *f, int size); | |
332 | void fifo_free(FifoBuffer *f); | |
333 | int fifo_size(FifoBuffer *f, UINT8 *rptr); | |
334 | int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr); | |
335 | void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr); | |
336 | ||
b9a281db FB |
337 | /* media file input */ |
338 | AVInputFormat *av_find_input_format(const char *short_name); | |
94988531 | 339 | AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened); |
b9a281db FB |
340 | int av_open_input_file(AVFormatContext **ic_ptr, const char *filename, |
341 | AVInputFormat *fmt, | |
342 | int buf_size, | |
343 | AVFormatParameters *ap); | |
344 | ||
345 | #define AVERROR_UNKNOWN (-1) /* unknown error */ | |
346 | #define AVERROR_IO (-2) /* i/o error */ | |
347 | #define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */ | |
348 | #define AVERROR_INVALIDDATA (-4) /* invalid data found */ | |
349 | #define AVERROR_NOMEM (-5) /* not enough memory */ | |
350 | #define AVERROR_NOFMT (-6) /* unknown format */ | |
351 | ||
352 | int av_find_stream_info(AVFormatContext *ic); | |
de6d9b64 FB |
353 | int av_read_packet(AVFormatContext *s, AVPacket *pkt); |
354 | void av_close_input_file(AVFormatContext *s); | |
b9a281db | 355 | AVStream *av_new_stream(AVFormatContext *s, int id); |
916c80e9 FB |
356 | void av_set_pts_info(AVFormatContext *s, int pts_wrap_bits, |
357 | int pts_num, int pts_den); | |
de6d9b64 | 358 | |
b9a281db | 359 | /* media file output */ |
290c5fa6 | 360 | int av_set_parameters(AVFormatContext *s, AVFormatParameters *ap); |
b9a281db | 361 | int av_write_header(AVFormatContext *s); |
1e51d801 FB |
362 | int av_write_frame(AVFormatContext *s, int stream_index, const uint8_t *buf, |
363 | int size); | |
b9a281db | 364 | int av_write_trailer(AVFormatContext *s); |
de6d9b64 FB |
365 | |
366 | void dump_format(AVFormatContext *ic, | |
367 | int index, | |
368 | const char *url, | |
369 | int is_output); | |
370 | int parse_image_size(int *width_ptr, int *height_ptr, const char *str); | |
de6d9b64 FB |
371 | INT64 parse_date(const char *datestr, int duration); |
372 | ||
94988531 FB |
373 | INT64 av_gettime(void); |
374 | ||
de6d9b64 FB |
375 | /* ffm specific for ffserver */ |
376 | #define FFM_PACKET_SIZE 4096 | |
377 | offset_t ffm_read_write_index(int fd); | |
378 | void ffm_write_write_index(int fd, offset_t pos); | |
379 | void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size); | |
380 | ||
381 | int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info); | |
382 | ||
813cae4b FB |
383 | int get_frame_filename(char *buf, int buf_size, |
384 | const char *path, int number); | |
b9a281db | 385 | int filename_number_test(const char *filename); |
96baaa6a | 386 | |
b9a281db FB |
387 | /* grab specific */ |
388 | int video_grab_init(void); | |
389 | int audio_init(void); | |
96baaa6a | 390 | |
86fd51fb FB |
391 | /* DV1394 */ |
392 | int dv1394_init(void); | |
fb025625 FB |
393 | |
394 | #ifdef HAVE_AV_CONFIG_H | |
395 | int strstart(const char *str, const char *val, const char **ptr); | |
396 | int stristart(const char *str, const char *val, const char **ptr); | |
397 | void pstrcpy(char *buf, int buf_size, const char *str); | |
398 | char *pstrcat(char *buf, int buf_size, const char *s); | |
fb025625 FB |
399 | |
400 | struct in_addr; | |
401 | int resolve_host(struct in_addr *sin_addr, const char *hostname); | |
402 | ||
403 | void url_split(char *proto, int proto_size, | |
404 | char *hostname, int hostname_size, | |
405 | int *port_ptr, | |
406 | char *path, int path_size, | |
407 | const char *url); | |
408 | ||
a941f391 FB |
409 | int match_ext(const char *filename, const char *extensions); |
410 | ||
fb025625 FB |
411 | #endif /* HAVE_AV_CONFIG_H */ |
412 | ||
02d697aa ZK |
413 | #ifdef __cplusplus |
414 | } | |
415 | #endif | |
416 | ||
fb025625 | 417 | #endif /* AVFORMAT_H */ |