libmpdemux/stheader.h

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #ifndef MPLAYER_STHEADER_H
  20 #define MPLAYER_STHEADER_H
  21
  22 #include "demuxer.h"
  23 #include "aviheader.h"
  24 #include "ms_hdr.h"
  25
  26 // Stream headers:
  27
  28 typedef struct {
  29   int aid;
  30   demux_stream_t *ds;
  31   struct codecs_st *codec;
  32   unsigned int format;
  33   int initialized;
  34   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  35   // output format:
  36   int sample_format;
  37   int samplerate;
  38   int samplesize;
  39   int channels;
  40   int o_bps; // == samplerate*samplesize*channels   (uncompr. bytes/sec)
  41   int i_bps; // == bitrate  (compressed bytes/sec)
  42   // in buffers:
  43   int audio_in_minsize; // max. compressed packet size (== min. in buffer size)
  44   char* a_in_buffer;
  45   int a_in_buffer_len;
  46   int a_in_buffer_size;
  47   // decoder buffers:
  48   int audio_out_minsize; // max. uncompressed packet size (==min. out buffsize)
  49   char* a_buffer;
  50   int a_buffer_len;
  51   int a_buffer_size;
  52   // output buffers:
  53   char* a_out_buffer;
  54   int a_out_buffer_len;
  55   int a_out_buffer_size;
  56 //  void* audio_out;        // the audio_out handle, used for this audio stream
  57   struct af_stream_s *afilter;          // the audio filter stream
  58   struct ad_functions_s* ad_driver;
  59 #ifdef CONFIG_DYNAMIC_PLUGINS
  60   void *dec_handle;
  61 #endif
  62   // win32-compatible codec parameters:
  63   AVIStreamHeader audio;
  64   WAVEFORMATEX* wf;
  65   // codec-specific:
  66   void* context; // codec-specific stuff (usually HANDLE or struct pointer)
  67   unsigned char* codecdata; // extra header data passed from demuxer to codec
  68   int codecdata_len;
  69   double pts;  // last known pts value in output from decoder
  70   int pts_bytes; // bytes output by decoder after last known pts
  71   char* lang; // track language
  72   int default_track;
  73 } sh_audio_t;
  74
  75 typedef struct {
  76   int vid;
  77   demux_stream_t *ds;
  78   struct codecs_st *codec;
  79   unsigned int format;
  80   int initialized;
  81   float timer;            // absolute time in video stream, since last start/seek
  82   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  83   // frame counters:
  84   float num_frames;       // number of frames played
  85   int num_frames_decoded; // number of frames decoded
  86   // timing (mostly for mpeg):
  87   double pts;     // predicted/interpolated PTS of the current frame
  88   double i_pts;   // PTS for the _next_ I/P frame
  89   float next_frame_time;
  90   double last_pts;
  91   double buffered_pts[20];
  92   int num_buffered_pts;
  93   // output format: (set by demuxer)
  94   float fps;              // frames per second (set only if constant fps)
  95   float frametime;        // 1/fps
  96   float aspect;           // aspect ratio stored in the file (for prescaling)
  97   float stream_aspect;  // aspect ratio stored in the media headers (e.g. in DVD IFO files)
  98   int i_bps;              // == bitrate  (compressed bytes/sec)
  99   int disp_w,disp_h;      // display size (filled by fileformat parser)
 100   // output driver/filters: (set by libmpcodecs core)
 101   unsigned int outfmtidx;
 102   struct vf_instance_s *vfilter;          // the video filter chain, used for this video stream
 103   int vf_initialized;
 104 #ifdef CONFIG_DYNAMIC_PLUGINS
 105   void *dec_handle;
 106 #endif
 107   // win32-compatible codec parameters:
 108   AVIStreamHeader video;
 109   BITMAPINFOHEADER* bih;
 110   void* ImageDesc; // for quicktime codecs
 111   // codec-specific:
 112   void* context;   // codec-specific stuff (usually HANDLE or struct pointer)
 113 } sh_video_t;
 114
 115 typedef struct {
 116   int sid;
 117   char type;                    // t = text, v = VobSub, a = SSA/ASS
 118   unsigned char* extradata; // extra header data passed from demuxer
 119   int extradata_len;
 120 #ifdef CONFIG_ASS
 121   ass_track_t* ass_track;  // for SSA/ASS streams (type == 'a')
 122 #endif
 123   char* lang; // track language
 124   int default_track;
 125 } sh_sub_t;
 126
 127 // demuxer.c:
 128 #define new_sh_audio(d, i) new_sh_audio_aid(d, i, i)
 129 sh_audio_t* new_sh_audio_aid(demuxer_t *demuxer,int id,int aid);
 130 #define new_sh_video(d, i) new_sh_video_vid(d, i, i)
 131 sh_video_t* new_sh_video_vid(demuxer_t *demuxer,int id,int vid);
 132 #define new_sh_sub(d, i) new_sh_sub_sid(d, i, i)
 133 sh_sub_t *new_sh_sub_sid(demuxer_t *demuxer, int id, int sid);
 134 void free_sh_audio(demuxer_t *demuxer, int id);
 135 void free_sh_video(sh_video_t *sh);
 136
 137 // video.c:
 138 int video_read_properties(sh_video_t *sh_video);
 139 int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps);
 140
 141 #endif /* MPLAYER_STHEADER_H */