mirror of https://github.com/mpv-player/mpv
111 lines
3.4 KiB
C
111 lines
3.4 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_TYPE_RAWVIDEO 2
|
|
#define MUXER_TYPE_LAVF 3
|
|
#define MUXER_TYPE_RAWAUDIO 4
|
|
|
|
|
|
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;
|
|
float aspect; // aspect ratio of this stream (set by ve_*.c)
|
|
// buffering:
|
|
unsigned char *buffer;
|
|
unsigned int buffer_size;
|
|
unsigned int buffer_len;
|
|
// mpeg block buffer:
|
|
unsigned char *b_buffer;
|
|
unsigned int b_buffer_size; //size of b_buffer
|
|
unsigned int b_buffer_ptr; //index to next data to write
|
|
unsigned int b_buffer_len; //len of next data to write
|
|
// muxer frame buffer:
|
|
unsigned int muxbuf_seen;
|
|
// 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:
|
|
size_t ipb[3]; // sizes of I/P/B frames
|
|
// muxer of that stream
|
|
struct muxer_t *muxer;
|
|
void *priv; // private stream specific data stored by the muxer
|
|
|
|
int vbv_size;
|
|
int max_rate;
|
|
} muxer_stream_t;
|
|
|
|
typedef struct {
|
|
uint32_t id;
|
|
char *text;
|
|
} muxer_info_t;
|
|
|
|
typedef struct muxer_t{
|
|
// encoding:
|
|
MainAVIHeader avih;
|
|
off_t movi_start;
|
|
off_t movi_end;
|
|
off_t 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
|
|
int num_audios;
|
|
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];
|
|
// muxer frame buffer:
|
|
struct muxbuf_t * muxbuf;
|
|
int muxbuf_num;
|
|
int muxbuf_skip_buffer;
|
|
// functions:
|
|
void (*fix_stream_parameters)(muxer_stream_t *);
|
|
void (*cont_write_chunk)(muxer_stream_t *,size_t,unsigned int, double dts, double pts);
|
|
void (*cont_write_header)(struct muxer_t *);
|
|
void (*cont_write_index)(struct muxer_t *);
|
|
muxer_stream_t* (*cont_new_stream)(struct muxer_t *,int);
|
|
FILE* file;
|
|
void *priv;
|
|
} muxer_t;
|
|
|
|
/* muxer frame buffer */
|
|
typedef struct muxbuf_t {
|
|
muxer_stream_t *stream; /* pointer back to corresponding stream */
|
|
double dts; /* decode timestamp / time at which this packet should be feeded into the decoder */
|
|
double pts; /* presentation timestamp / time at which the data in this packet will be presented to the user */
|
|
unsigned char *buffer;
|
|
size_t len;
|
|
unsigned int flags;
|
|
} muxbuf_t;
|
|
|
|
#define MP_NOPTS_VALUE (-1LL<<63) //both int64_t and double should be able to represent this exactly
|
|
|
|
muxer_t *muxer_new_muxer(int type,FILE *);
|
|
#define muxer_new_stream(muxer,a) muxer->cont_new_stream(muxer,a)
|
|
#define muxer_stream_fix_parameters(muxer, a) muxer->fix_stream_parameters(a)
|
|
void muxer_write_chunk(muxer_stream_t *s, size_t len, unsigned int flags, double dts, double pts);
|
|
#define muxer_write_header(muxer) muxer->cont_write_header(muxer)
|
|
#define muxer_write_index(muxer) muxer->cont_write_index(muxer)
|
|
|
|
int muxer_init_muxer_avi(muxer_t *);
|
|
int muxer_init_muxer_mpeg(muxer_t *);
|
|
int muxer_init_muxer_rawvideo(muxer_t *);
|
|
int muxer_init_muxer_lavf(muxer_t *);
|
|
int muxer_init_muxer_rawaudio(muxer_t *);
|