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