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 "aviheader.h"
  23 #include "ms_hdr.h"
  24 struct MPOpts;
  25 struct demuxer;
  26
  27 // Stream headers:
  28
  29 typedef struct sh_audio {
  30   struct MPOpts *opts;
  31   int aid;
  32   struct demux_stream *ds;
  33   struct codecs *codec;
  34   unsigned int format;
  35   int initialized;
  36   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  37   // output format:
  38   int sample_format;
  39   int samplerate;
  40   int samplesize;
  41   int channels;
  42   int o_bps; // == samplerate*samplesize*channels   (uncompr. bytes/sec)
  43   int i_bps; // == bitrate  (compressed bytes/sec)
  44   // in buffers:
  45   int audio_in_minsize; // max. compressed packet size (== min. in buffer size)
  46   char* a_in_buffer;
  47   int a_in_buffer_len;
  48   int a_in_buffer_size;
  49   // decoder buffers:
  50   int audio_out_minsize; // max. uncompressed packet size (==min. out buffsize)
  51   char* a_buffer;
  52   int a_buffer_len;
  53   int a_buffer_size;
  54   // output buffers:
  55   char* a_out_buffer;
  56   int a_out_buffer_len;
  57   int a_out_buffer_size;
  58 //  void* audio_out;        // the audio_out handle, used for this audio stream
  59   struct af_stream *afilter;          // the audio filter stream
  60   struct ad_functions *ad_driver;
  61 #ifdef CONFIG_DYNAMIC_PLUGINS
  62   void *dec_handle;
  63 #endif
  64   // win32-compatible codec parameters:
  65   AVIStreamHeader audio;
  66   WAVEFORMATEX* wf;
  67   // codec-specific:
  68   void* context; // codec-specific stuff (usually HANDLE or struct pointer)
  69   unsigned char* codecdata; // extra header data passed from demuxer to codec
  70   int codecdata_len;
  71   double pts;  // last known pts value in output from decoder
  72   int pts_bytes; // bytes output by decoder after last known pts
  73   char* lang; // track language
  74   int default_track;
  75 } sh_audio_t;
  76
  77 typedef struct sh_video {
  78   struct MPOpts *opts;
  79   int vid;
  80   struct demux_stream *ds;
  81   struct codecs *codec;
  82   unsigned int format;
  83   int initialized;
  84   float timer;            // absolute time in video stream, since last start/seek
  85   float stream_delay; // number of seconds stream should be delayed (according to dwStart or similar)
  86   // frame counters:
  87   float num_frames;       // number of frames played
  88   int num_frames_decoded; // number of frames decoded
  89   // timing (mostly for mpeg):
  90   double pts;     // predicted/interpolated PTS of the current frame
  91   double i_pts;   // PTS for the _next_ I/P frame
  92   float next_frame_time;
  93   double last_pts;
  94   double buffered_pts[20];
  95   int num_buffered_pts;
  96   // output format: (set by demuxer)
  97   float fps;              // frames per second (set only if constant fps)
  98   float frametime;        // 1/fps
  99   float aspect;           // aspect ratio stored in the file (for prescaling)
 100   float stream_aspect;  // aspect ratio stored in the media headers (e.g. in DVD IFO files)
 101   int i_bps;              // == bitrate  (compressed bytes/sec)
 102   int disp_w,disp_h;      // display size (filled by fileformat parser)
 103   // output driver/filters: (set by libmpcodecs core)
 104   unsigned int outfmtidx;
 105   struct vf_instance *vfilter;          // the video filter chain, used for this video stream
 106   int output_flags;       // query_format() results for output filters+vo
 107   const struct vd_functions *vd_driver;
 108   int vf_initialized;
 109 #ifdef CONFIG_DYNAMIC_PLUGINS
 110   void *dec_handle;
 111 #endif
 112   // win32-compatible codec parameters:
 113   AVIStreamHeader video;
 114   BITMAPINFOHEADER* bih;
 115   void* ImageDesc; // for quicktime codecs
 116   // codec-specific:
 117   void* context;   // codec-specific stuff (usually HANDLE or struct pointer)
 118 } sh_video_t;
 119
 120 typedef struct sh_sub {
 121   struct MPOpts *opts;
 122   int sid;
 123   char type;                    // t = text, v = VobSub, a = SSA/ASS
 124   unsigned char* extradata; // extra header data passed from demuxer
 125   int extradata_len;
 126   struct ass_track *ass_track;  // for SSA/ASS streams (type == 'a')
 127   char* lang; // track language
 128   int default_track;
 129 } sh_sub_t;
 130
 131 // demuxer.c:
 132 #define new_sh_audio(d, i) new_sh_audio_aid(d, i, i)
 133 sh_audio_t* new_sh_audio_aid(struct demuxer *demuxer,int id,int aid);
 134 #define new_sh_video(d, i) new_sh_video_vid(d, i, i)
 135 sh_video_t* new_sh_video_vid(struct demuxer *demuxer,int id,int vid);
 136 #define new_sh_sub(d, i) new_sh_sub_sid(d, i, i)
 137 sh_sub_t *new_sh_sub_sid(struct demuxer *demuxer, int id, int sid);
 138 void free_sh_audio(struct demuxer *demuxer, int id);
 139 void free_sh_video(sh_video_t *sh);
 140
 141 // video.c:
 142 int video_read_properties(sh_video_t *sh_video);
 143 int video_read_frame(sh_video_t* sh_video,float* frame_time_ptr,unsigned char** start,int force_fps);
 144
 145 #endif /* MPLAYER_STHEADER_H */