mirror of https://github.com/mpv-player/mpv
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
|
|
#define MUXER_MAX_STREAMS 16
|
|
|
|
#define MUXER_TYPE_VIDEO 0
|
|
#define MUXER_TYPE_AUDIO 1
|
|
|
|
#define MUXER_TYPE_AVI 0
|
|
#define MUXER_TYPE_MPEG 1
|
|
|
|
#define MUXER_MPEG_BLOCKSIZE 2048 // 2048 or 2324 - ?
|
|
|
|
typedef struct {
|
|
// muxer data:
|
|
int type; // audio or video
|
|
int id; // stream no
|
|
uint32_t ckid; // chunk id (00dc 01wb etc)
|
|
double timer;
|
|
off_t size;
|
|
// buffering:
|
|
unsigned char *buffer;
|
|
unsigned int buffer_size;
|
|
unsigned int buffer_len;
|
|
// mpeg block buffer:
|
|
unsigned char *b_buffer;
|
|
unsigned int b_buffer_ptr;
|
|
// source stream:
|
|
void* source; // sh_audio or sh_video
|
|
int codec; // codec used for encoding. 0 means copy
|
|
// avi stream header:
|
|
AVIStreamHeader h; // Rate/Scale and SampleSize must be filled by caller!
|
|
// stream specific:
|
|
WAVEFORMATEX *wf;
|
|
BITMAPINFOHEADER *bih; // in format
|
|
// mpeg specific:
|
|
unsigned int gop_start; // frame number of this GOP start
|
|
size_t ipb[3]; // sizes of I/P/B frames
|
|
} muxer_stream_t;
|
|
|
|
typedef struct {
|
|
uint32_t id;
|
|
char *text;
|
|
} muxer_info_t;
|
|
|
|
typedef struct muxer_t{
|
|
// encoding:
|
|
MainAVIHeader avih;
|
|
unsigned int movi_start;
|
|
unsigned int movi_end;
|
|
unsigned int file_end; // for MPEG it's system timestamp in 1/90000 s
|
|
// index:
|
|
AVIINDEXENTRY *idx;
|
|
int idx_pos;
|
|
int idx_size;
|
|
// streams:
|
|
int num_videos; // for MPEG recalculations
|
|
unsigned int sysrate; // max rate in bytes/s
|
|
//int num_streams;
|
|
muxer_stream_t* def_v; // default video stream (for general headers)
|
|
muxer_stream_t* streams[MUXER_MAX_STREAMS];
|
|
void (*cont_write_chunk)(struct muxer_t *,muxer_stream_t *,FILE *,size_t,unsigned int);
|
|
void (*cont_write_header)(struct muxer_t *,FILE *);
|
|
void (*cont_write_index)(struct muxer_t *,FILE *);
|
|
muxer_stream_t* (*cont_new_stream)(struct muxer_t *,int);
|
|
} muxer_t;
|
|
|
|
muxer_t* muxer_new_muxer(int type);
|
|
#define muxer_new_stream(muxer,a) muxer->cont_new_stream(muxer,a)
|
|
#define muxer_write_chunk(muxer,a,b,c,d) muxer->cont_write_chunk(muxer,a,b,c,d)
|
|
#define muxer_write_header(muxer,f) muxer->cont_write_header(muxer,f)
|
|
#define muxer_write_index(muxer,f) muxer->cont_write_index(muxer,f)
|
|
|
|
void muxer_init_muxer_avi(muxer_t *);
|
|
void muxer_init_muxer_mpeg(muxer_t *);
|
|
|