libmpdemux/stheader.h

   1 #ifndef MPLAYER_STHEADER_H
   2 #define MPLAYER_STHEADER_H
   3
   4 #include "demuxer.h"
   5 #include "aviheader.h"
   6 #include "ms_hdr.h"
   7
   8 // Stream headers:
   9
  10 typedef struct {
  11   int aid;
  12   demux_stream_t *ds;
  13   struct codecs_st *codec;
  14   unsigned int format;
  15   int initialized;
  16   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  17   // output format:
  18   int sample_format;
  19   int samplerate;
  20   int samplesize;
  21   int channels;
  22   int o_bps; // == samplerate*samplesize*channels   (uncompr. bytes/sec)
  23   int i_bps; // == bitrate  (compressed bytes/sec)
  24   // in buffers:
  25   int audio_in_minsize; // max. compressed packet size (== min. in buffer size)
  26   char* a_in_buffer;
  27   int a_in_buffer_len;
  28   int a_in_buffer_size;
  29   // decoder buffers:
  30   int audio_out_minsize; // max. uncompressed packet size (==min. out buffsize)
  31   char* a_buffer;
  32   int a_buffer_len;
  33   int a_buffer_size;
  34   // output buffers:
  35   char* a_out_buffer;
  36   int a_out_buffer_len;
  37   int a_out_buffer_size;
  38 //  void* audio_out;        // the audio_out handle, used for this audio stream
  39   struct af_stream_s *afilter;          // the audio filter stream
  40   struct ad_functions_s* ad_driver;
  41 #ifdef CONFIG_DYNAMIC_PLUGINS
  42   void *dec_handle;
  43 #endif
  44   // win32-compatible codec parameters:
  45   AVIStreamHeader audio;
  46   WAVEFORMATEX* wf;
  47   // codec-specific:
  48   void* context; // codec-specific stuff (usually HANDLE or struct pointer)
  49   unsigned char* codecdata; // extra header data passed from demuxer to codec
  50   int codecdata_len;
  51   double pts;  // last known pts value in output from decoder
  52   int pts_bytes; // bytes output by decoder after last known pts
  53   char* lang; // track language
  54   int default_track;
  55 } sh_audio_t;
  56
  57 typedef struct {
  58   int vid;
  59   demux_stream_t *ds;
  60   struct codecs_st *codec;
  61   unsigned int format;
  62   int initialized;
  63   float timer;            // absolute time in video stream, since last start/seek
  64   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  65   // frame counters:
  66   float num_frames;       // number of frames played
  67   int num_frames_decoded; // number of frames decoded
  68   // timing (mostly for mpeg):
  69   double pts;     // predicted/interpolated PTS of the current frame
  70   double i_pts;   // PTS for the _next_ I/P frame
  71   float next_frame_time;
  72   double last_pts;
  73   double buffered_pts[20];
  74   int num_buffered_pts;
  75   // output format: (set by demuxer)
  76   float fps;              // frames per second (set only if constant fps)
  77   float frametime;        // 1/fps
  78   float aspect;           // aspect ratio stored in the file (for prescaling)
  79   float stream_aspect;  // aspect ratio stored in the media headers (e.g. in DVD IFO files)
  80   int i_bps;              // == bitrate  (compressed bytes/sec)
  81   int disp_w,disp_h;      // display size (filled by fileformat parser)
  82   // output driver/filters: (set by libmpcodecs core)
  83   unsigned int outfmtidx;
  84   struct vf_instance_s *vfilter;          // the video filter chain, used for this video stream
  85   int vf_initialized;
  86 #ifdef CONFIG_DYNAMIC_PLUGINS
  87   void *dec_handle;
  88 #endif
  89   // win32-compatible codec parameters:
  90   AVIStreamHeader video;
  91   BITMAPINFOHEADER* bih;
  92   void* ImageDesc; // for quicktime codecs
  93   // codec-specific:
  94   void* context;   // codec-specific stuff (usually HANDLE or struct pointer)
  95 } sh_video_t;
  96
  97 typedef struct {
  98   int sid;
  99   char type;                    // t = text, v = VobSub, a = SSA/ASS
 100   unsigned char* extradata; // extra header data passed from demuxer
 101   int extradata_len;
 102 #ifdef CONFIG_ASS
 103   ass_track_t* ass_track;  // for SSA/ASS streams (type == 'a')
 104 #endif
 105   char* lang; // track language
 106   int default_track;
 107 } sh_sub_t;
 108
 109 // demuxer.c:
 110 #define new_sh_audio(d, i) new_sh_audio_aid(d, i, i)
 111 sh_audio_t* new_sh_audio_aid(demuxer_t *demuxer,int id,int aid);
 112 #define new_sh_video(d, i) new_sh_video_vid(d, i, i)
 113 sh_video_t* new_sh_video_vid(demuxer_t *demuxer,int id,int vid);
 114 #define new_sh_sub(d, i) new_sh_sub_sid(d, i, i)
 115 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid);
 116 void free_sh_audio(demuxer_t *demuxer, int id);
 117 void free_sh_video(sh_video_t *sh);
 118
 119 // video.c:
 120 int video_read_properties(sh_video_t *sh_video);
 121 int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps);
 122
 123 #endif /* MPLAYER_STHEADER_H */