libmpdemux/muxer.h

   1 #ifndef MPLAYER_MUXER_H
   2 #define MPLAYER_MUXER_H
   3
   4 #include <stdint.h>
   5 #include <sys/types.h>
   6 #include "aviheader.h"
   7 #include "ms_hdr.h"
   8 #include "stream/stream.h"
   9
  10 #define MUXER_MAX_STREAMS 16
  11
  12 #define MUXER_TYPE_VIDEO 0
  13 #define MUXER_TYPE_AUDIO 1
  14
  15 #define MUXER_TYPE_AVI 0
  16 #define MUXER_TYPE_MPEG 1
  17 #define MUXER_TYPE_RAWVIDEO 2
  18 #define MUXER_TYPE_LAVF 3
  19 #define MUXER_TYPE_RAWAUDIO 4
  20
  21
  22 typedef struct {
  23   // muxer data:
  24   int type;  // audio or video
  25   int id;    // stream no
  26   uint32_t ckid; // chunk id (00dc 01wb etc)
  27   double timer;
  28   off_t size;
  29   float aspect; // aspect ratio of this stream (set by ve_*.c)
  30   // buffering:
  31   unsigned char *buffer;
  32   unsigned int buffer_size;
  33   unsigned int buffer_len;
  34   // mpeg block buffer:
  35   unsigned char *b_buffer;
  36   unsigned int b_buffer_size;   //size of b_buffer
  37   unsigned int b_buffer_ptr;    //index to next data to write
  38   unsigned int b_buffer_len;    //len of next data to write
  39   // muxer frame buffer:
  40   unsigned int muxbuf_seen;
  41   // source stream:
  42   void* source; // sh_audio or sh_video
  43   int codec; // codec used for encoding. 0 means copy
  44   // avi stream header:
  45   AVIStreamHeader h;  // Rate/Scale and SampleSize must be filled by caller!
  46   // stream specific:
  47   WAVEFORMATEX *wf;
  48   BITMAPINFOHEADER *bih;   // in format
  49   int encoder_delay; // in number of frames
  50   int decoder_delay; // in number of frames
  51   int imgfmt;
  52   // mpeg specific:
  53   size_t ipb[3]; // sizes of I/P/B frames
  54   // muxer of that stream
  55   struct muxer_t *muxer;
  56   void *priv; // private stream specific data stored by the muxer
  57
  58   int vbv_size;
  59   int max_rate;
  60   int avg_rate;
  61 } muxer_stream_t;
  62
  63 typedef struct {
  64   uint32_t id;
  65   char *text;
  66 } muxer_info_t;
  67
  68 typedef struct muxer_t{
  69   // encoding:
  70   MainAVIHeader avih;
  71   off_t movi_start;
  72   off_t movi_end;
  73   off_t file_end; // for MPEG it's system timestamp in 1/90000 s
  74   float audio_delay_fix;
  75   // index:
  76   AVIINDEXENTRY *idx;
  77   int idx_pos;
  78   int idx_size;
  79   // streams:
  80   int num_videos;       // for MPEG recalculations
  81   int num_audios;
  82   unsigned int sysrate; // max rate in bytes/s
  83   //int num_streams;
  84   muxer_stream_t* def_v;  // default video stream (for general headers)
  85   muxer_stream_t* streams[MUXER_MAX_STREAMS];
  86   // muxer frame buffer:
  87   struct muxbuf_t * muxbuf;
  88   int muxbuf_num;
  89   int muxbuf_skip_buffer;
  90   // functions:
  91   stream_t *stream;
  92   void (*fix_stream_parameters)(muxer_stream_t *);
  93   void (*cont_write_chunk)(muxer_stream_t *,size_t,unsigned int, double dts, double pts);
  94   void (*cont_write_header)(struct muxer_t *);
  95   void (*cont_write_index)(struct muxer_t *);
  96   muxer_stream_t* (*cont_new_stream)(struct muxer_t *,int);
  97   void *priv;
  98 } muxer_t;
  99
 100 /* muxer frame buffer */
 101 typedef struct muxbuf_t {
 102   muxer_stream_t *stream; /* pointer back to corresponding stream */
 103   double dts; /* decode timestamp / time at which this packet should be feeded into the decoder */
 104   double pts; /* presentation timestamp / time at which the data in this packet will be presented to the user */
 105   unsigned char *buffer;
 106   size_t len;
 107   unsigned int flags;
 108 } muxbuf_t;
 109
 110 extern char *force_fourcc;
 111
 112 muxer_t *muxer_new_muxer(int type,stream_t *stream);
 113 #define muxer_new_stream(muxer,a) muxer->cont_new_stream(muxer,a)
 114 #define muxer_stream_fix_parameters(muxer, a) muxer->fix_stream_parameters(a)
 115 void muxer_write_chunk(muxer_stream_t *s, size_t len, unsigned int flags, double dts, double pts);
 116 #define muxer_write_header(muxer) muxer->cont_write_header(muxer)
 117 #define muxer_write_index(muxer) muxer->cont_write_index(muxer)
 118
 119 int muxer_init_muxer_avi(muxer_t *);
 120 int muxer_init_muxer_mpeg(muxer_t *);
 121 int muxer_init_muxer_rawvideo(muxer_t *);
 122 int muxer_init_muxer_lavf(muxer_t *);
 123 int muxer_init_muxer_rawaudio(muxer_t *);
 124
 125 #endif /* MPLAYER_MUXER_H */