mirror of https://github.com/mpv-player/mpv
120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
#ifndef MUXER_H
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#define MUXER_H
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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_TYPE_RAWVIDEO 2
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#define MUXER_TYPE_LAVF 3
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#define MUXER_TYPE_RAWAUDIO 4
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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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float aspect; // aspect ratio of this stream (set by ve_*.c)
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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_size; //size of b_buffer
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unsigned int b_buffer_ptr; //index to next data to write
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unsigned int b_buffer_len; //len of next data to write
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// muxer frame buffer:
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unsigned int muxbuf_seen;
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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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int encoder_delay; // in number of frames
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int decoder_delay; // in number of frames
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int imgfmt;
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// mpeg specific:
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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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void *priv; // private stream specific data stored by the muxer
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int vbv_size;
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int max_rate;
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int avg_rate;
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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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off_t movi_start;
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off_t movi_end;
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off_t file_end; // for MPEG it's system timestamp in 1/90000 s
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float audio_delay_fix;
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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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int num_audios;
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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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// muxer frame buffer:
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struct muxbuf_t * muxbuf;
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int muxbuf_num;
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int muxbuf_skip_buffer;
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// functions:
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stream_t *stream;
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void (*fix_stream_parameters)(muxer_stream_t *);
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void (*cont_write_chunk)(muxer_stream_t *,size_t,unsigned int, double dts, double pts);
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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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void *priv;
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} muxer_t;
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/* muxer frame buffer */
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typedef struct muxbuf_t {
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muxer_stream_t *stream; /* pointer back to corresponding stream */
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double dts; /* decode timestamp / time at which this packet should be feeded into the decoder */
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double pts; /* presentation timestamp / time at which the data in this packet will be presented to the user */
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unsigned char *buffer;
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size_t len;
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unsigned int flags;
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} muxbuf_t;
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extern char *force_fourcc;
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muxer_t *muxer_new_muxer(int type,stream_t *stream);
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#define muxer_new_stream(muxer,a) muxer->cont_new_stream(muxer,a)
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#define muxer_stream_fix_parameters(muxer, a) muxer->fix_stream_parameters(a)
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void muxer_write_chunk(muxer_stream_t *s, size_t len, unsigned int flags, double dts, double pts);
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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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int muxer_init_muxer_avi(muxer_t *);
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int muxer_init_muxer_mpeg(muxer_t *);
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int muxer_init_muxer_rawvideo(muxer_t *);
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int muxer_init_muxer_lavf(muxer_t *);
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int muxer_init_muxer_rawaudio(muxer_t *);
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#endif /* MUXER_H */
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