added CONFIG_AC3, CONFIG_MPGLIB, CONFIG_DECODERS and CONFIG_ENCODERS (Arpi: don't...
[libav.git] / libav / avformat.h
1
2 #include "avcodec.h"
3
4 #define FFMPEG_VERSION "0.4.5"
5
6 #include "avio.h"
7
8 /* packet functions */
9
10 typedef struct AVPacket {
11 INT64 pts;
12 UINT8 *data;
13 int size;
14 int stream_index;
15 int flags;
16 #define PKT_FLAG_KEY 0x0001
17 } AVPacket;
18
19 int av_new_packet(AVPacket *pkt, int size);
20 void av_free_packet(AVPacket *pkt);
21
22 /*************************************************/
23 /* output formats */
24
25 struct AVFormatContext;
26 struct AVFormatInputContext;
27
28 typedef struct AVFormatParameters {
29 int frame_rate;
30 int sample_rate;
31 int channels;
32 int width;
33 int height;
34 int pix_fmt;
35 } AVFormatParameters;
36
37 typedef struct AVFormat {
38 const char *name;
39 const char *long_name;
40 const char *mime_type;
41 const char *extensions; /* comma separated extensions */
42
43 /* output support */
44 enum CodecID audio_codec; /* default audio codec */
45 enum CodecID video_codec; /* default video codec */
46 int (*write_header)(struct AVFormatContext *);
47 int (*write_packet)(struct AVFormatContext *,
48 int stream_index,
49 unsigned char *buf, int size);
50 int (*write_trailer)(struct AVFormatContext *);
51
52 /* optional input support */
53 /* read the format header and initialize the AVFormatInputContext
54 structure. Return 0 if OK. 'ap' if non NULL contains
55 additionnal paramters. Only used in raw format right now */
56 int (*read_header)(struct AVFormatContext *,
57 AVFormatParameters *ap);
58 /* read one packet and put it in 'pkt'. pts and flags are also set */
59 int (*read_packet)(struct AVFormatContext *, AVPacket *pkt);
60 /* close the stream. The AVFormatContext and AVStreams are not
61 freed by this function */
62 int (*read_close)(struct AVFormatContext *);
63 /* seek at or before a given pts (given in microsecond). The pts
64 origin is defined by the stream */
65 int (*read_seek)(struct AVFormatContext *, INT64 pts);
66 int flags;
67 #define AVFMT_NOFILE 0x0001 /* no file should be opened */
68 struct AVFormat *next;
69 } AVFormat;
70
71 typedef struct AVStream {
72 int id; /* internal stream id */
73 AVCodecContext codec; /* codec context */
74 void *priv_data;
75 } AVStream;
76
77 #define MAX_STREAMS 20
78
79 /* format I/O context */
80 typedef struct AVFormatContext {
81 struct AVFormat *format;
82 void *priv_data;
83 ByteIOContext pb;
84 int nb_streams;
85 AVStream *streams[MAX_STREAMS];
86 char filename[1024]; /* input or output filename */
87 /* stream info */
88 char title[512];
89 char author[512];
90 char copyright[512];
91 char comment[512];
92 /* This buffer is only needed when packets were already buffered but
93 not decoded, for example to get the codec parameters in mpeg
94 streams */
95 struct AVPacketList *packet_buffer;
96 } AVFormatContext;
97
98 typedef struct AVPacketList {
99 AVPacket pkt;
100 struct AVPacketList *next;
101 } AVPacketList;
102
103 extern AVFormat *first_format;
104
105 /* rv10enc.c */
106 extern AVFormat rm_format;
107
108 /* mpegmux.c */
109 extern AVFormat mpeg_mux_format;
110
111 /* asfenc.c */
112 extern AVFormat asf_format;
113
114 /* avienc.c */
115 extern AVFormat avi_format;
116
117 /* jpegenc.c */
118 extern AVFormat mpjpeg_format;
119 extern AVFormat jpeg_format;
120
121 /* swfenc.c */
122 extern AVFormat swf_format;
123
124 /* wav.c */
125 extern AVFormat wav_format;
126
127 /* img.c */
128 extern AVFormat pgm_format;
129 extern AVFormat pgmyuv_format;
130 extern AVFormat imgyuv_format;
131 extern AVFormat pgmpipe_format;
132
133 /* raw.c */
134 extern AVFormat mp2_format;
135 extern AVFormat ac3_format;
136 extern AVFormat h263_format;
137 extern AVFormat mpeg1video_format;
138 extern AVFormat pcm_format;
139 extern AVFormat rawvideo_format;
140
141 /* ffm.c */
142 extern AVFormat ffm_format;
143
144 /* formats.c */
145
146 #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
147 #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
148
149 void register_avformat(AVFormat *format);
150 AVFormat *guess_format(const char *short_name, const char *filename, const char *mime_type);
151
152 int strstart(const char *str, const char *val, const char **ptr);
153 void nstrcpy(char *buf, int buf_size, const char *str);
154 int match_ext(const char *filename, const char *extensions);
155
156 void register_all(void);
157
158 INT64 gettime(void);
159
160 typedef struct FifoBuffer {
161 UINT8 *buffer;
162 UINT8 *rptr, *wptr, *end;
163 } FifoBuffer;
164
165 int fifo_init(FifoBuffer *f, int size);
166 void fifo_free(FifoBuffer *f);
167 int fifo_size(FifoBuffer *f, UINT8 *rptr);
168 int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr);
169 void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr);
170
171 AVFormatContext *av_open_input_file(const char *filename, int buf_size);
172 int av_read_packet(AVFormatContext *s, AVPacket *pkt);
173 void av_close_input_file(AVFormatContext *s);
174
175 int av_write_packet(AVFormatContext *s, AVPacket *pkt);
176
177 void dump_format(AVFormatContext *ic,
178 int index,
179 const char *url,
180 int is_output);
181 int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
182 INT64 gettime(void);
183 INT64 parse_date(const char *datestr, int duration);
184
185 /* ffm specific for ffserver */
186 #define FFM_PACKET_SIZE 4096
187 offset_t ffm_read_write_index(int fd);
188 void ffm_write_write_index(int fd, offset_t pos);
189 void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
190
191 int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);
192