fixed NTSC end of line bug
[libav.git] / libav / avformat.h
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1#ifndef AVFORMAT_H
2#define AVFORMAT_H
de6d9b64 3
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4#define LIBAVFORMAT_VERSION_INT 0x000406
5#define LIBAVFORMAT_VERSION "0.4.6"
2a10020b 6#define LIBAVFORMAT_BUILD 4602
4b1f4f23 7
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8#include "avcodec.h"
9
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10#include "avio.h"
11
12/* packet functions */
13
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14#define AV_NOPTS_VALUE 0
15
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16typedef struct AVPacket {
17 INT64 pts;
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
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25} AVPacket;
26
27int av_new_packet(AVPacket *pkt, int size);
28void av_free_packet(AVPacket *pkt);
29
30/*************************************************/
b9a281db 31/* input/output formats */
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32
33struct AVFormatContext;
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34
35/* this structure contains the data a format has to probe a file */
36typedef struct AVProbeData {
37 char *filename;
38 unsigned char *buf;
39 int buf_size;
40} AVProbeData;
41
42#define AVPROBE_SCORE_MAX 100
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43
44typedef struct AVFormatParameters {
45 int frame_rate;
46 int sample_rate;
47 int channels;
48 int width;
49 int height;
4606ac8d 50 enum PixelFormat pix_fmt;
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51} AVFormatParameters;
52
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53#define AVFMT_NOFILE 0x0001 /* no file should be opened */
54#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
55#define AVFMT_NOHEADER 0x0004 /* signal that no header is present
56 (streams are added dynamically) */
57#define AVFMT_SHOW_IDS 0x0008 /* show format stream IDs numbers */
58#define AVFMT_RGB24 0x0010 /* force RGB24 output for ppm (hack
59 - need better api) */
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60#define AVFMT_RAWPICTURE 0x0020 /* format wants AVPicture structure for
61 raw picture data */
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62
63typedef struct AVOutputFormat {
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64 const char *name;
65 const char *long_name;
66 const char *mime_type;
67 const char *extensions; /* comma separated extensions */
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68 /* size of private data so that it can be allocated in the wrapper */
69 int priv_data_size;
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70 /* output support */
71 enum CodecID audio_codec; /* default audio codec */
72 enum CodecID video_codec; /* default video codec */
73 int (*write_header)(struct AVFormatContext *);
74 int (*write_packet)(struct AVFormatContext *,
75 int stream_index,
10bb7023 76 unsigned char *buf, int size, int force_pts);
de6d9b64 77 int (*write_trailer)(struct AVFormatContext *);
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78 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER */
79 int flags;
80 /* private fields */
81 struct AVOutputFormat *next;
82} AVOutputFormat;
de6d9b64 83
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84typedef struct AVInputFormat {
85 const char *name;
86 const char *long_name;
87 /* size of private data so that it can be allocated in the wrapper */
88 int priv_data_size;
89 /* tell if a given file has a chance of being parsing by this format */
90 int (*read_probe)(AVProbeData *);
91 /* read the format header and initialize the AVFormatContext
de6d9b64 92 structure. Return 0 if OK. 'ap' if non NULL contains
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93 additionnal paramters. Only used in raw format right
94 now. 'av_new_stream' should be called to create new streams. */
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95 int (*read_header)(struct AVFormatContext *,
96 AVFormatParameters *ap);
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97 /* read one packet and put it in 'pkt'. pts and flags are also
98 set. 'av_new_stream' can be called only if the flag
99 AVFMT_NOHEADER is used. */
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100 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
101 /* close the stream. The AVFormatContext and AVStreams are not
102 freed by this function */
103 int (*read_close)(struct AVFormatContext *);
104 /* seek at or before a given pts (given in microsecond). The pts
105 origin is defined by the stream */
106 int (*read_seek)(struct AVFormatContext *, INT64 pts);
b9a281db 107 /* can use flags: AVFMT_NOFILE, AVFMT_NEEDNUMBER, AVFMT_NOHEADER */
de6d9b64 108 int flags;
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109 /* if extensions are defined, then no probe is done. You should
110 usually not use extension format guessing because it is not
111 reliable enough */
112 const char *extensions;
113 /* general purpose read only value that the format can use */
114 int value;
115 /* private fields */
116 struct AVInputFormat *next;
117} AVInputFormat;
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118
119typedef struct AVStream {
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120 int index; /* stream index in AVFormatContext */
121 int id; /* format specific stream id */
de6d9b64 122 AVCodecContext codec; /* codec context */
76c0441b 123 int r_frame_rate; /* real frame rate of the stream */
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124 uint64_t time_length; /* real length of the stream in miliseconds */
125 void* extra_data; /* some extra data - i.e. longer WAVEFORMATEX */
126 int extra_data_size; /* size of extra data chunk */
de6d9b64 127 void *priv_data;
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128 /* internal data used in av_find_stream_info() */
129 int codec_info_state;
130 int codec_info_nb_repeat_frames;
131 int codec_info_nb_real_frames;
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132} AVStream;
133
134#define MAX_STREAMS 20
135
136/* format I/O context */
137typedef struct AVFormatContext {
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138 /* can only be iformat or oformat, not both at the same time */
139 struct AVInputFormat *iformat;
140 struct AVOutputFormat *oformat;
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141 void *priv_data;
142 ByteIOContext pb;
143 int nb_streams;
144 AVStream *streams[MAX_STREAMS];
145 char filename[1024]; /* input or output filename */
146 /* stream info */
147 char title[512];
148 char author[512];
149 char copyright[512];
150 char comment[512];
92b3e125 151 int flags; /* format specific flags */
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152 /* This buffer is only needed when packets were already buffered but
153 not decoded, for example to get the codec parameters in mpeg
154 streams */
155 struct AVPacketList *packet_buffer;
156} AVFormatContext;
157
158typedef struct AVPacketList {
159 AVPacket pkt;
160 struct AVPacketList *next;
161} AVPacketList;
162
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163extern AVInputFormat *first_iformat;
164extern AVOutputFormat *first_oformat;
de6d9b64 165
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166/* XXX: use automatic init with either ELF sections or C file parser */
167/* modules */
de6d9b64 168
b9a281db 169/* mpeg.c */
92b3e125 170#define AVF_FLAG_VCD 0x00000001 /* VCD compatible MPEG-PS */
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171int mpegps_init(void);
172
173/* mpegts.c */
174extern AVInputFormat mpegts_demux;
175int mpegts_init(void);
de6d9b64 176
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177/* rm.c */
178int rm_init(void);
179
180/* crc.c */
181int crc_init(void);
182
183/* img.c */
184int img_init(void);
185
186/* asf.c */
187int asf_init(void);
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188
189/* avienc.c */
b9a281db 190int avienc_init(void);
de6d9b64 191
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192/* avidec.c */
193int avidec_init(void);
6cea494e 194
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195/* swf.c */
196int swf_init(void);
197
198/* mov.c */
199int mov_init(void);
de6d9b64 200
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201/* jpeg.c */
202int jpeg_init(void);
de6d9b64 203
6cea494e 204/* gif.c */
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205int gif_init(void);
206
6cea494e 207/* au.c */
b9a281db 208int au_init(void);
6cea494e 209
de6d9b64 210/* wav.c */
b9a281db 211int wav_init(void);
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212
213/* raw.c */
b9a281db 214int raw_init(void);
de6d9b64 215
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216/* ogg.c */
217int ogg_init(void);
218
de6d9b64 219/* ffm.c */
b9a281db 220int ffm_init(void);
de6d9b64 221
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222/* rtsp.c */
223extern AVInputFormat redir_demux;
224int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f);
225
226#include "rtp.h"
227
228#include "rtsp.h"
229
b9a281db 230/* utils.c */
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231#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
232#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
233
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234void av_register_input_format(AVInputFormat *format);
235void av_register_output_format(AVOutputFormat *format);
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236AVOutputFormat *guess_stream_format(const char *short_name,
237 const char *filename, const char *mime_type);
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238AVOutputFormat *guess_format(const char *short_name,
239 const char *filename, const char *mime_type);
de6d9b64 240
b9a281db 241void av_hex_dump(UINT8 *buf, int size);
de6d9b64 242
94988531 243void av_register_all(void);
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244
245typedef struct FifoBuffer {
246 UINT8 *buffer;
247 UINT8 *rptr, *wptr, *end;
248} FifoBuffer;
249
250int fifo_init(FifoBuffer *f, int size);
251void fifo_free(FifoBuffer *f);
252int fifo_size(FifoBuffer *f, UINT8 *rptr);
253int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr);
254void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr);
255
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256/* media file input */
257AVInputFormat *av_find_input_format(const char *short_name);
94988531 258AVInputFormat *av_probe_input_format(AVProbeData *pd, int is_opened);
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259int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
260 AVInputFormat *fmt,
261 int buf_size,
262 AVFormatParameters *ap);
263
264#define AVERROR_UNKNOWN (-1) /* unknown error */
265#define AVERROR_IO (-2) /* i/o error */
266#define AVERROR_NUMEXPECTED (-3) /* number syntax expected in filename */
267#define AVERROR_INVALIDDATA (-4) /* invalid data found */
268#define AVERROR_NOMEM (-5) /* not enough memory */
269#define AVERROR_NOFMT (-6) /* unknown format */
270
271int av_find_stream_info(AVFormatContext *ic);
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272int av_read_packet(AVFormatContext *s, AVPacket *pkt);
273void av_close_input_file(AVFormatContext *s);
b9a281db 274AVStream *av_new_stream(AVFormatContext *s, int id);
de6d9b64 275
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276/* media file output */
277int av_write_header(AVFormatContext *s);
10bb7023 278int av_write_packet(AVFormatContext *s, AVPacket *pkt, int force_pts);
b9a281db 279int av_write_trailer(AVFormatContext *s);
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280
281void dump_format(AVFormatContext *ic,
282 int index,
283 const char *url,
284 int is_output);
285int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
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286INT64 parse_date(const char *datestr, int duration);
287
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288INT64 av_gettime(void);
289
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290/* ffm specific for ffserver */
291#define FFM_PACKET_SIZE 4096
292offset_t ffm_read_write_index(int fd);
293void ffm_write_write_index(int fd, offset_t pos);
294void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
295
296int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
297
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298int get_frame_filename(char *buf, int buf_size,
299 const char *path, int number);
b9a281db 300int filename_number_test(const char *filename);
96baaa6a 301
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302/* grab specific */
303int video_grab_init(void);
304int audio_init(void);
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305
306extern const char *v4l_device;
307extern const char *audio_device;
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308
309#ifdef HAVE_AV_CONFIG_H
310int strstart(const char *str, const char *val, const char **ptr);
311int stristart(const char *str, const char *val, const char **ptr);
312void pstrcpy(char *buf, int buf_size, const char *str);
313char *pstrcat(char *buf, int buf_size, const char *s);
314int match_ext(const char *filename, const char *extensions);
315
316struct in_addr;
317int resolve_host(struct in_addr *sin_addr, const char *hostname);
318
319void url_split(char *proto, int proto_size,
320 char *hostname, int hostname_size,
321 int *port_ptr,
322 char *path, int path_size,
323 const char *url);
324
325#endif /* HAVE_AV_CONFIG_H */
326
327#endif /* AVFORMAT_H */