4 #define FFMPEG_VERSION "0.4.5"
10 typedef struct AVPacket {
16 #define PKT_FLAG_KEY 0x0001
19 int av_new_packet(AVPacket *pkt, int size);
20 void av_free_packet(AVPacket *pkt);
22 /*************************************************/
25 struct AVFormatContext;
26 struct AVFormatInputContext;
28 typedef struct AVFormatParameters {
37 typedef struct AVFormat {
39 const char *long_name;
40 const char *mime_type;
41 const char *extensions; /* comma separated extensions */
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 *,
49 unsigned char *buf, int size);
50 int (*write_trailer)(struct AVFormatContext *);
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);
67 #define AVFMT_NOFILE 0x0001 /* no file should be opened */
68 struct AVFormat *next;
71 typedef struct AVStream {
72 int id; /* internal stream id */
73 AVCodecContext codec; /* codec context */
77 #define MAX_STREAMS 20
79 /* format I/O context */
80 typedef struct AVFormatContext {
81 struct AVFormat *format;
85 AVStream *streams[MAX_STREAMS];
86 char filename[1024]; /* input or output filename */
92 /* This buffer is only needed when packets were already buffered but
93 not decoded, for example to get the codec parameters in mpeg
95 struct AVPacketList *packet_buffer;
98 typedef struct AVPacketList {
100 struct AVPacketList *next;
103 extern AVFormat *first_format;
106 extern AVFormat rm_format;
109 extern AVFormat mpeg_mux_format;
112 extern AVFormat asf_format;
115 extern AVFormat avi_format;
118 extern AVFormat mpjpeg_format;
119 extern AVFormat jpeg_format;
122 extern AVFormat swf_format;
125 extern AVFormat wav_format;
128 extern AVFormat pgm_format;
129 extern AVFormat ppm_format;
130 extern AVFormat pgmyuv_format;
131 extern AVFormat imgyuv_format;
133 extern AVFormat pgmpipe_format;
134 extern AVFormat pgmyuvpipe_format;
135 extern AVFormat ppmpipe_format;
138 extern AVFormat mp2_format;
139 extern AVFormat ac3_format;
140 extern AVFormat h263_format;
141 extern AVFormat mpeg1video_format;
142 extern AVFormat pcm_format;
143 extern AVFormat rawvideo_format;
146 extern AVFormat ffm_format;
150 #define MKTAG(a,b,c,d) (a | (b << 8) | (c << 16) | (d << 24))
151 #define MKBETAG(a,b,c,d) (d | (c << 8) | (b << 16) | (a << 24))
153 void register_avformat(AVFormat *format);
154 AVFormat *guess_format(const char *short_name, const char *filename, const char *mime_type);
156 int strstart(const char *str, const char *val, const char **ptr);
157 void nstrcpy(char *buf, int buf_size, const char *str);
158 int match_ext(const char *filename, const char *extensions);
160 void register_all(void);
164 typedef struct FifoBuffer {
166 UINT8 *rptr, *wptr, *end;
169 int fifo_init(FifoBuffer *f, int size);
170 void fifo_free(FifoBuffer *f);
171 int fifo_size(FifoBuffer *f, UINT8 *rptr);
172 int fifo_read(FifoBuffer *f, UINT8 *buf, int buf_size, UINT8 **rptr_ptr);
173 void fifo_write(FifoBuffer *f, UINT8 *buf, int size, UINT8 **wptr_ptr);
175 AVFormatContext *av_open_input_file(const char *filename, int buf_size);
176 int av_read_packet(AVFormatContext *s, AVPacket *pkt);
177 void av_close_input_file(AVFormatContext *s);
179 int av_write_packet(AVFormatContext *s, AVPacket *pkt);
181 void dump_format(AVFormatContext *ic,
185 int parse_image_size(int *width_ptr, int *height_ptr, const char *str);
187 INT64 parse_date(const char *datestr, int duration);
189 /* ffm specific for ffserver */
190 #define FFM_PACKET_SIZE 4096
191 offset_t ffm_read_write_index(int fd);
192 void ffm_write_write_index(int fd, offset_t pos);
193 void ffm_set_write_index(AVFormatContext *s, offset_t pos, offset_t file_size);
195 int find_info_tag(char *arg, int arg_size, const char *tag1, const char *info);