suppressed mpglib
[libav.git] / libav / avformat.h
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1
2#include "avcodec.h"
3
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4#include "avio.h"
5
6/* packet functions */
7
8typedef struct AVPacket {
9 INT64 pts;
10 UINT8 *data;
11 int size;
12 int stream_index;
13 int flags;
14#define PKT_FLAG_KEY 0x0001
15} AVPacket;
16
17int av_new_packet(AVPacket *pkt, int size);
18void av_free_packet(AVPacket *pkt);
19
20/*************************************************/
21/* output formats */
22
23struct AVFormatContext;
24struct AVFormatInputContext;
25
26typedef struct AVFormatParameters {
27 int frame_rate;
28 int sample_rate;
29 int channels;
30 int width;
31 int height;
32 int pix_fmt;
33} AVFormatParameters;
34
35typedef struct AVFormat {
36 const char *name;
37 const char *long_name;
38 const char *mime_type;
39 const char *extensions; /* comma separated extensions */
40
41 /* output support */
42 enum CodecID audio_codec; /* default audio codec */
43 enum CodecID video_codec; /* default video codec */
44 int (*write_header)(struct AVFormatContext *);
45 int (*write_packet)(struct AVFormatContext *,
46 int stream_index,
47 unsigned char *buf, int size);
48 int (*write_trailer)(struct AVFormatContext *);
49
50 /* optional input support */
51 /* read the format header and initialize the AVFormatInputContext
52 structure. Return 0 if OK. 'ap' if non NULL contains
53 additionnal paramters. Only used in raw format right now */
54 int (*read_header)(struct AVFormatContext *,
55 AVFormatParameters *ap);
56 /* read one packet and put it in 'pkt'. pts and flags are also set */
57 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
58 /* close the stream. The AVFormatContext and AVStreams are not
59 freed by this function */
60 int (*read_close)(struct AVFormatContext *);
61 /* seek at or before a given pts (given in microsecond). The pts
62 origin is defined by the stream */
63 int (*read_seek)(struct AVFormatContext *, INT64 pts);
64 int flags;
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65#define AVFMT_NOFILE 0x0001 /* no file should be opened */
66#define AVFMT_NEEDNUMBER 0x0002 /* needs '%d' in filename */
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67 struct AVFormat *next;
68} AVFormat;
69
70typedef struct AVStream {
71 int id; /* internal stream id */
72 AVCodecContext codec; /* codec context */
73 void *priv_data;
74} AVStream;
75
76#define MAX_STREAMS 20
77
78/* format I/O context */
79typedef struct AVFormatContext {
80 struct AVFormat *format;
81 void *priv_data;
82 ByteIOContext pb;
83 int nb_streams;
84 AVStream *streams[MAX_STREAMS];
85 char filename[1024]; /* input or output filename */
86 /* stream info */
87 char title[512];
88 char author[512];
89 char copyright[512];
90 char comment[512];
91 /* This buffer is only needed when packets were already buffered but
92 not decoded, for example to get the codec parameters in mpeg
93 streams */
94 struct AVPacketList *packet_buffer;
95} AVFormatContext;
96
97typedef struct AVPacketList {
98 AVPacket pkt;
99 struct AVPacketList *next;
100} AVPacketList;
101
102extern AVFormat *first_format;
103
104/* rv10enc.c */
105extern AVFormat rm_format;
106
107/* mpegmux.c */
108extern AVFormat mpeg_mux_format;
109
110/* asfenc.c */
111extern AVFormat asf_format;
112
113/* avienc.c */
114extern AVFormat avi_format;
115
116/* jpegenc.c */
117extern AVFormat mpjpeg_format;
118extern AVFormat jpeg_format;
eea23282 119extern AVFormat single_jpeg_format;
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120
121/* swfenc.c */
122extern AVFormat swf_format;
123
124/* wav.c */
125extern AVFormat wav_format;
126
127/* img.c */
128extern AVFormat pgm_format;
6775c758 129extern AVFormat ppm_format;
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130extern AVFormat pgmyuv_format;
131extern AVFormat imgyuv_format;
6775c758 132
de6d9b64 133extern AVFormat pgmpipe_format;
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134extern AVFormat pgmyuvpipe_format;
135extern AVFormat ppmpipe_format;
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136
137/* raw.c */
138extern AVFormat mp2_format;
139extern AVFormat ac3_format;
140extern AVFormat h263_format;
141extern AVFormat mpeg1video_format;
eea23282 142extern AVFormat mjpeg_format;
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143extern AVFormat pcm_format;
144extern AVFormat rawvideo_format;
145
146/* ffm.c */
147extern AVFormat ffm_format;
148
149/* formats.c */
150
151#define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
152#define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
153
154void register_avformat(AVFormat *format);
155AVFormat *guess_format(const char *short_name, const char *filename, const char *mime_type);
156
157int strstart(const char *str, const char *val, const char **ptr);
158void nstrcpy(char *buf, int buf_size, const char *str);
159int match_ext(const char *filename, const char *extensions);
160
161void register_all(void);
162
163INT64 gettime(void);
164
165typedef struct FifoBuffer {
166 UINT8 *buffer;
167 UINT8 *rptr, *wptr, *end;
168} FifoBuffer;
169
170int fifo_init(FifoBuffer *f, int size);
171void fifo_free(FifoBuffer *f);
172int fifo_size(FifoBuffer *f, UINT8 *rptr);
173int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr);
174void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr);
175
176AVFormatContext *av_open_input_file(const char *filename, int buf_size);
177int av_read_packet(AVFormatContext *s, AVPacket *pkt);
178void av_close_input_file(AVFormatContext *s);
179
180int av_write_packet(AVFormatContext *s, AVPacket *pkt);
181
182void dump_format(AVFormatContext *ic,
183 int index,
184 const char *url,
185 int is_output);
186int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
187INT64 gettime(void);
188INT64 parse_date(const char *datestr, int duration);
189
190/* ffm specific for ffserver */
191#define FFM_PACKET_SIZE 4096
192offset_t ffm_read_write_index(int fd);
193void ffm_write_write_index(int fd, offset_t pos);
194void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
195
196int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
197
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198int get_frame_filename(char *buf, int buf_size,
199 const char *path, int number);