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fb025625 FB |
1 | #ifndef AVFORMAT_H |
2 | #define AVFORMAT_H | |
de6d9b64 | 3 | |
94988531 FB |
4 | #define LIBAVFORMAT_VERSION_INT 0x000406 |
5 | #define LIBAVFORMAT_VERSION "0.4.6" | |
2a10020b | 6 | #define LIBAVFORMAT_BUILD 4602 |
4b1f4f23 | 7 | |
de6d9b64 FB |
8 | #include "avcodec.h" |
9 | ||
de6d9b64 FB |
10 | #include "avio.h" |
11 | ||
12 | /* packet functions */ | |
13 | ||
fb025625 FB |
14 | #define AV_NOPTS_VALUE 0 |
15 | ||
de6d9b64 | 16 | typedef struct AVPacket { |
916c80e9 | 17 | INT64 pts; /* presentation time stamp in stream units (set av_set_pts_info) */ |
de6d9b64 FB |
18 | UINT8 *data; |
19 | int size; | |
20 | int stream_index; | |
21 | int flags; | |
6d9872f4 | 22 | int duration; |
de6d9b64 | 23 | #define PKT_FLAG_KEY 0x0001 |
4606ac8d | 24 | #define PKT_FLAG_DROPPED_FRAME 0x0002 |
de6d9b64 FB |
25 | } AVPacket; |
26 | ||
27 | int av_new_packet(AVPacket *pkt, int size); | |
28 | void av_free_packet(AVPacket *pkt); | |
29 | ||
30 | /*************************************************/ | |
916c80e9 FB |
31 | /* fractional numbers for exact pts handling */ |
32 | ||
33 | /* the exact value of the fractional number is: 'val + num / den'. num | |
34 | is assumed to be such as 0 <= num < den */ | |
35 | typedef struct AVFrac { | |
36 | INT64 val, num, den; | |
37 | } AVFrac; | |
38 | ||
39 | void av_frac_init(AVFrac *f, INT64 val, INT64 num, INT64 den); | |
40 | void av_frac_add(AVFrac *f, INT64 incr); | |
41 | void av_frac_set(AVFrac *f, INT64 val); | |
42 | ||
43 | /*************************************************/ | |
b9a281db | 44 | /* input/output formats */ |
de6d9b64 FB |
45 | |
46 | struct AVFormatContext; | |
b9a281db FB |
47 | |
48 | /* this structure contains the data a format has to probe a file */ | |
49 | typedef struct AVProbeData { | |
50 | char *filename; | |
51 | unsigned char *buf; | |
52 | int buf_size; | |
53 | } AVProbeData; | |
54 | ||
55 | #define AVPROBE_SCORE_MAX 100 | |
de6d9b64 FB |
56 | |
57 | typedef struct AVFormatParameters { | |
58 | int frame_rate; | |
59 | int sample_rate; | |
60 | int channels; | |
61 | int width; | |
62 | int height; | |
4606ac8d | 63 | enum PixelFormat pix_fmt; |
de6d9b64 FB |
64 | } AVFormatParameters; |
65 | ||
b9a281db FB |
66 | #define AVFMT_NOFILE 0x0001 /* no file should be opened */ |
67 | #define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */ | |
68 | #define AVFMT_NOHEADER 0x0004 /* signal that no header is present | |
69 | (streams are added dynamically) */ | |
70 | #define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */ | |
71 | #define AVFMT_RGB24 0x0010 /* force RGB24 output for ppm (hack | |
72 | - need better api) */ | |
fb025625 FB |
73 | #define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for |
74 | raw picture data */ | |
b9a281db FB |
75 | |
76 | typedef struct AVOutputFormat { | |
de6d9b64 FB |
77 | const char *name; |
78 | const char *long_name; | |
79 | const char *mime_type; | |
80 | const char *extensions; /* comma separated extensions */ | |
b9a281db FB |
81 | /* size of private data so that it can be allocated in the wrapper */ |
82 | int priv_data_size; | |
de6d9b64 FB |
83 | /* output support */ |
84 | enum CodecID audio_codec; /* default audio codec */ | |
85 | enum CodecID video_codec; /* default video codec */ | |
86 | int (*write_header)(struct AVFormatContext *); | |
87 | int (*write_packet)(struct AVFormatContext *, | |
88 | int stream_index, | |
10bb7023 | 89 | unsigned char *buf, int size, int force_pts); |
de6d9b64 | 90 | int (*write_trailer)(struct AVFormatContext *); |
b9a281db FB |
91 | /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */ |
92 | int flags; | |
93 | /* private fields */ | |
94 | struct AVOutputFormat *next; | |
95 | } AVOutputFormat; | |
de6d9b64 | 96 | |
b9a281db FB |
97 | typedef struct AVInputFormat { |
98 | const char *name; | |
99 | const char *long_name; | |
100 | /* size of private data so that it can be allocated in the wrapper */ | |
101 | int priv_data_size; | |
102 | /* tell if a given file has a chance of being parsing by this format */ | |
103 | int (*read_probe)(AVProbeData *); | |
104 | /* read the format header and initialize the AVFormatContext | |
de6d9b64 | 105 | structure. Return 0 if OK. 'ap' if non NULL contains |
b9a281db FB |
106 | additionnal paramters. Only used in raw format right |
107 | now. 'av_new_stream' should be called to create new streams. */ | |
de6d9b64 FB |
108 | int (*read_header)(struct AVFormatContext *, |
109 | AVFormatParameters *ap); | |
b9a281db FB |
110 | /* read one packet and put it in 'pkt'. pts and flags are also |
111 | set. 'av_new_stream' can be called only if the flag | |
112 | AVFMT_NOHEADER is used. */ | |
de6d9b64 FB |
113 | int (*read_packet)(struct AVFormatContext *, AVPacket *pkt); |
114 | /* close the stream. The AVFormatContext and AVStreams are not | |
115 | freed by this function */ | |
116 | int (*read_close)(struct AVFormatContext *); | |
117 | /* seek at or before a given pts (given in microsecond). The pts | |
118 | origin is defined by the stream */ | |
119 | int (*read_seek)(struct AVFormatContext *, INT64 pts); | |
b9a281db | 120 | /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_NOHEADER */ |
de6d9b64 | 121 | int flags; |
b9a281db FB |
122 | /* if extensions are defined, then no probe is done. You should |
123 | usually not use extension format guessing because it is not | |
124 | reliable enough */ | |
125 | const char *extensions; | |
126 | /* general purpose read only value that the format can use */ | |
127 | int value; | |
128 | /* private fields */ | |
129 | struct AVInputFormat *next; | |
130 | } AVInputFormat; | |
de6d9b64 FB |
131 | |
132 | typedef struct AVStream { | |
b9a281db FB |
133 | int index; /* stream index in AVFormatContext */ |
134 | int id; /* format specific stream id */ | |
de6d9b64 | 135 | AVCodecContext codec; /* codec context */ |
76c0441b | 136 | int r_frame_rate; /* real frame rate of the stream */ |
2a10020b ZK |
137 | uint64_t time_length; /* real length of the stream in miliseconds */ |
138 | void* extra_data; /* some extra data - i.e. longer WAVEFORMATEX */ | |
139 | int extra_data_size; /* size of extra data chunk */ | |
de6d9b64 | 140 | void *priv_data; |
b9a281db FB |
141 | /* internal data used in av_find_stream_info() */ |
142 | int codec_info_state; | |
143 | int codec_info_nb_repeat_frames; | |
144 | int codec_info_nb_real_frames; | |
a48b7a6b FB |
145 | /* ffmpeg.c private use */ |
146 | int stream_copy; /* if TRUE, just copy stream */ | |
de6d9b64 FB |
147 | } AVStream; |
148 | ||
149 | #define MAX_STREAMS 20 | |
150 | ||
151 | /* format I/O context */ | |
152 | typedef struct AVFormatContext { | |
b9a281db FB |
153 | /* can only be iformat or oformat, not both at the same time */ |
154 | struct AVInputFormat *iformat; | |
155 | struct AVOutputFormat *oformat; | |
de6d9b64 FB |
156 | void *priv_data; |
157 | ByteIOContext pb; | |
158 | int nb_streams; | |
159 | AVStream *streams[MAX_STREAMS]; | |
160 | char filename[1024]; /* input or output filename */ | |
161 | /* stream info */ | |
162 | char title[512]; | |
163 | char author[512]; | |
164 | char copyright[512]; | |
165 | char comment[512]; | |
92b3e125 | 166 | int flags; /* format specific flags */ |
916c80e9 FB |
167 | /* private data for pts handling (do not modify directly) */ |
168 | int pts_wrap_bits; /* number of bits in pts (used for wrapping control) */ | |
169 | int pts_num, pts_den; /* value to convert to seconds */ | |
de6d9b64 FB |
170 | /* This buffer is only needed when packets were already buffered but |
171 | not decoded, for example to get the codec parameters in mpeg | |
172 | streams */ | |
173 | struct AVPacketList *packet_buffer; | |
174 | } AVFormatContext; | |
175 | ||
176 | typedef struct AVPacketList { | |
177 | AVPacket pkt; | |
178 | struct AVPacketList *next; | |
179 | } AVPacketList; | |
180 | ||
b9a281db FB |
181 | extern AVInputFormat *first_iformat; |
182 | extern AVOutputFormat *first_oformat; | |
de6d9b64 | 183 | |
b9a281db FB |
184 | /* XXX: use automatic init with either ELF sections or C file parser */ |
185 | /* modules */ | |
de6d9b64 | 186 | |
b9a281db | 187 | /* mpeg.c */ |
b9a281db FB |
188 | int mpegps_init(void); |
189 | ||
190 | /* mpegts.c */ | |
191 | extern AVInputFormat mpegts_demux; | |
192 | int mpegts_init(void); | |
de6d9b64 | 193 | |
b9a281db FB |
194 | /* rm.c */ |
195 | int rm_init(void); | |
196 | ||
197 | /* crc.c */ | |
198 | int crc_init(void); | |
199 | ||
200 | /* img.c */ | |
201 | int img_init(void); | |
202 | ||
203 | /* asf.c */ | |
204 | int asf_init(void); | |
de6d9b64 FB |
205 | |
206 | /* avienc.c */ | |
b9a281db | 207 | int avienc_init(void); |
de6d9b64 | 208 | |
b9a281db FB |
209 | /* avidec.c */ |
210 | int avidec_init(void); | |
6cea494e | 211 | |
b9a281db FB |
212 | /* swf.c */ |
213 | int swf_init(void); | |
214 | ||
215 | /* mov.c */ | |
216 | int mov_init(void); | |
de6d9b64 | 217 | |
b9a281db FB |
218 | /* jpeg.c */ |
219 | int jpeg_init(void); | |
de6d9b64 | 220 | |
6cea494e | 221 | /* gif.c */ |
b9a281db FB |
222 | int gif_init(void); |
223 | ||
6cea494e | 224 | /* au.c */ |
b9a281db | 225 | int au_init(void); |
6cea494e | 226 | |
de6d9b64 | 227 | /* wav.c */ |
b9a281db | 228 | int wav_init(void); |
de6d9b64 FB |
229 | |
230 | /* raw.c */ | |
b9a281db | 231 | int raw_init(void); |
de6d9b64 | 232 | |
81e0d0b4 MH |
233 | /* ogg.c */ |
234 | int ogg_init(void); | |
235 | ||
f20dca40 FB |
236 | /* dv.c */ |
237 | int dv_init(void); | |
238 | ||
de6d9b64 | 239 | /* ffm.c */ |
b9a281db | 240 | int ffm_init(void); |
de6d9b64 | 241 | |
fb025625 FB |
242 | /* rtsp.c */ |
243 | extern AVInputFormat redir_demux; | |
244 | int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f); | |
245 | ||
246 | #include "rtp.h" | |
247 | ||
248 | #include "rtsp.h" | |
249 | ||
b9a281db | 250 | /* utils.c */ |
de6d9b64 FB |
251 | #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24)) |
252 | #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24)) | |
253 | ||
b9a281db FB |
254 | void av_register_input_format(AVInputFormat *format); |
255 | void av_register_output_format(AVOutputFormat *format); | |
36ada60c PG |
256 | AVOutputFormat *guess_stream_format(const char *short_name, |
257 | const char *filename, const char *mime_type); | |
b9a281db FB |
258 | AVOutputFormat *guess_format(const char *short_name, |
259 | const char *filename, const char *mime_type); | |
de6d9b64 | 260 | |
b9a281db | 261 | void av_hex_dump(UINT8 *buf, int size); |
de6d9b64 | 262 | |
94988531 | 263 | void av_register_all(void); |
de6d9b64 FB |
264 | |
265 | typedef struct FifoBuffer { | |
266 | UINT8 *buffer; | |
267 | UINT8 *rptr, *wptr, *end; | |
268 | } FifoBuffer; | |
269 | ||
270 | int fifo_init(FifoBuffer *f, int size); | |
271 | void fifo_free(FifoBuffer *f); | |
272 | int fifo_size(FifoBuffer *f, UINT8 *rptr); | |
273 | int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr); | |
274 | void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr); | |
275 | ||
b9a281db FB |
276 | /* media file input */ |
277 | AVInputFormat *av_find_input_format(const char *short_name); | |
94988531 | 278 | AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened); |
b9a281db FB |
279 | int av_open_input_file(AVFormatContext **ic_ptr, const char *filename, |
280 | AVInputFormat *fmt, | |
281 | int buf_size, | |
282 | AVFormatParameters *ap); | |
283 | ||
284 | #define AVERROR_UNKNOWN (-1) /* unknown error */ | |
285 | #define AVERROR_IO (-2) /* i/o error */ | |
286 | #define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */ | |
287 | #define AVERROR_INVALIDDATA (-4) /* invalid data found */ | |
288 | #define AVERROR_NOMEM (-5) /* not enough memory */ | |
289 | #define AVERROR_NOFMT (-6) /* unknown format */ | |
290 | ||
291 | int av_find_stream_info(AVFormatContext *ic); | |
de6d9b64 FB |
292 | int av_read_packet(AVFormatContext *s, AVPacket *pkt); |
293 | void av_close_input_file(AVFormatContext *s); | |
b9a281db | 294 | AVStream *av_new_stream(AVFormatContext *s, int id); |
916c80e9 FB |
295 | void av_set_pts_info(AVFormatContext *s, int pts_wrap_bits, |
296 | int pts_num, int pts_den); | |
de6d9b64 | 297 | |
b9a281db FB |
298 | /* media file output */ |
299 | int av_write_header(AVFormatContext *s); | |
10bb7023 | 300 | int av_write_packet(AVFormatContext *s, AVPacket *pkt, int force_pts); |
b9a281db | 301 | int av_write_trailer(AVFormatContext *s); |
de6d9b64 FB |
302 | |
303 | void dump_format(AVFormatContext *ic, | |
304 | int index, | |
305 | const char *url, | |
306 | int is_output); | |
307 | int parse_image_size(int *width_ptr, int *height_ptr, const char *str); | |
de6d9b64 FB |
308 | INT64 parse_date(const char *datestr, int duration); |
309 | ||
94988531 FB |
310 | INT64 av_gettime(void); |
311 | ||
de6d9b64 FB |
312 | /* ffm specific for ffserver */ |
313 | #define FFM_PACKET_SIZE 4096 | |
314 | offset_t ffm_read_write_index(int fd); | |
315 | void ffm_write_write_index(int fd, offset_t pos); | |
316 | void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size); | |
317 | ||
318 | int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info); | |
319 | ||
813cae4b FB |
320 | int get_frame_filename(char *buf, int buf_size, |
321 | const char *path, int number); | |
b9a281db | 322 | int filename_number_test(const char *filename); |
96baaa6a | 323 | |
b9a281db FB |
324 | /* grab specific */ |
325 | int video_grab_init(void); | |
326 | int audio_init(void); | |
96baaa6a FB |
327 | |
328 | extern const char *v4l_device; | |
329 | extern const char *audio_device; | |
fb025625 FB |
330 | |
331 | #ifdef HAVE_AV_CONFIG_H | |
332 | int strstart(const char *str, const char *val, const char **ptr); | |
333 | int stristart(const char *str, const char *val, const char **ptr); | |
334 | void pstrcpy(char *buf, int buf_size, const char *str); | |
335 | char *pstrcat(char *buf, int buf_size, const char *s); | |
336 | int match_ext(const char *filename, const char *extensions); | |
337 | ||
338 | struct in_addr; | |
339 | int resolve_host(struct in_addr *sin_addr, const char *hostname); | |
340 | ||
341 | void url_split(char *proto, int proto_size, | |
342 | char *hostname, int hostname_size, | |
343 | int *port_ptr, | |
344 | char *path, int path_size, | |
345 | const char *url); | |
346 | ||
347 | #endif /* HAVE_AV_CONFIG_H */ | |
348 | ||
349 | #endif /* AVFORMAT_H */ |