libmpdemux/stheader.h

   1 #ifndef MPLAYER_STHEADER_H
   2 #define MPLAYER_STHEADER_H
   3
   4 #include "aviheader.h"
   5 #include "ms_hdr.h"
   6 struct MPOpts;
   7
   8 // Stream headers:
   9
  10 typedef struct sh_audio {
  11   struct MPOpts *opts;
  12   int aid;
  13   struct demux_stream *ds;
  14   struct codecs *codec;
  15   unsigned int format;
  16   int initialized;
  17   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  18   // output format:
  19   int sample_format;
  20   int samplerate;
  21   int samplesize;
  22   int channels;
  23   int o_bps; // == samplerate*samplesize*channels   (uncompr. bytes/sec)
  24   int i_bps; // == bitrate  (compressed bytes/sec)
  25   // in buffers:
  26   int audio_in_minsize; // max. compressed packet size (== min. in buffer size)
  27   char* a_in_buffer;
  28   int a_in_buffer_len;
  29   int a_in_buffer_size;
  30   // decoder buffers:
  31   int audio_out_minsize; // max. uncompressed packet size (==min. out buffsize)
  32   char* a_buffer;
  33   int a_buffer_len;
  34   int a_buffer_size;
  35   // output buffers:
  36   char* a_out_buffer;
  37   int a_out_buffer_len;
  38   int a_out_buffer_size;
  39 //  void* audio_out;        // the audio_out handle, used for this audio stream
  40   struct af_stream *afilter;          // the audio filter stream
  41   struct ad_functions *ad_driver;
  42 #ifdef CONFIG_DYNAMIC_PLUGINS
  43   void *dec_handle;
  44 #endif
  45   // win32-compatible codec parameters:
  46   AVIStreamHeader audio;
  47   WAVEFORMATEX* wf;
  48   // codec-specific:
  49   void* context; // codec-specific stuff (usually HANDLE or struct pointer)
  50   unsigned char* codecdata; // extra header data passed from demuxer to codec
  51   int codecdata_len;
  52   double pts;  // last known pts value in output from decoder
  53   int pts_bytes; // bytes output by decoder after last known pts
  54   char* lang; // track language
  55   int default_track;
  56 } sh_audio_t;
  57
  58 typedef struct sh_video {
  59   struct MPOpts *opts;
  60   int vid;
  61   struct demux_stream *ds;
  62   struct codecs *codec;
  63   unsigned int format;
  64   int initialized;
  65   float timer;            // absolute time in video stream, since last start/seek
  66   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  67   // frame counters:
  68   float num_frames;       // number of frames played
  69   int num_frames_decoded; // number of frames decoded
  70   // timing (mostly for mpeg):
  71   double pts;     // predicted/interpolated PTS of the current frame
  72   double i_pts;   // PTS for the _next_ I/P frame
  73   float next_frame_time;
  74   double last_pts;
  75   double buffered_pts[20];
  76   int num_buffered_pts;
  77   // output format: (set by demuxer)
  78   float fps;              // frames per second (set only if constant fps)
  79   float frametime;        // 1/fps
  80   float aspect;           // aspect ratio stored in the file (for prescaling)
  81   float stream_aspect;  // aspect ratio stored in the media headers (e.g. in DVD IFO files)
  82   int i_bps;              // == bitrate  (compressed bytes/sec)
  83   int disp_w,disp_h;      // display size (filled by fileformat parser)
  84   // output driver/filters: (set by libmpcodecs core)
  85   unsigned int outfmtidx;
  86   struct vf_instance *vfilter;          // the video filter chain, used for this video stream
  87   int output_flags;       // query_format() results for output filters+vo
  88   const struct vd_functions *vd_driver;
  89   int vf_initialized;
  90 #ifdef CONFIG_DYNAMIC_PLUGINS
  91   void *dec_handle;
  92 #endif
  93   // win32-compatible codec parameters:
  94   AVIStreamHeader video;
  95   BITMAPINFOHEADER* bih;
  96   void* ImageDesc; // for quicktime codecs
  97   // codec-specific:
  98   void* context;   // codec-specific stuff (usually HANDLE or struct pointer)
  99 } sh_video_t;
 100
 101 typedef struct sh_sub {
 102   struct MPOpts *opts;
 103   int sid;
 104   char type;                    // t = text, v = VobSub, a = SSA/ASS
 105   unsigned char* extradata; // extra header data passed from demuxer
 106   int extradata_len;
 107   struct ass_track_s *ass_track;  // for SSA/ASS streams (type == 'a')
 108   char* lang; // track language
 109   int default_track;
 110 } sh_sub_t;
 111
 112 // demuxer.c:
 113 #define new_sh_audio(d, i) new_sh_audio_aid(d, i, i)
 114 sh_audio_t* new_sh_audio_aid(demuxer_t *demuxer,int id,int aid);
 115 #define new_sh_video(d, i) new_sh_video_vid(d, i, i)
 116 sh_video_t* new_sh_video_vid(demuxer_t *demuxer,int id,int vid);
 117 #define new_sh_sub(d, i) new_sh_sub_sid(d, i, i)
 118 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid);
 119 void free_sh_audio(demuxer_t *demuxer, int id);
 120 void free_sh_video(sh_video_t *sh);
 121
 122 // video.c:
 123 int video_read_properties(sh_video_t *sh_video);
 124 int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps);
 125
 126 #endif /* MPLAYER_STHEADER_H */