xvmc_render.h

   1 #ifndef XVMC_RENDER_H
   2 #define XVMC_RENDER_H
   3
   4 #include <X11/Xlib.h>
   5 #include <X11/Xutil.h>
   6 #include <X11/Xatom.h>
   7 #include <X11/extensions/Xv.h>
   8 #include <X11/extensions/Xvlib.h>
   9 #include <X11/extensions/XvMClib.h>
  10
  11
  12 //the surface should be shown, video driver manipulates this
  13 #define MP_XVMC_STATE_DISPLAY_PENDING 1
  14 //the surface is needed for prediction, codec manipulates this
  15 #define MP_XVMC_STATE_PREDICTION 2
  16 //this surface is needed for subpicture rendering
  17 #define MP_XVMC_STATE_OSD_SOURCE 4
  18 //                     1337    IDCT MCo
  19 #define MP_XVMC_RENDER_MAGIC 0x1DC711C0
  20
  21 typedef   struct{
  22 //these are not changed by the decoder!
  23   int  magic;
  24
  25   short * data_blocks;
  26   XvMCMacroBlock * mv_blocks;
  27   int total_number_of_mv_blocks;
  28   int total_number_of_data_blocks;
  29   int mc_type;//XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
  30   int idct;//Do we use IDCT acceleration?
  31   int chroma_format;//420,422,444
  32   int unsigned_intra;//+-128 for intra pictures after clip
  33   XvMCSurface* p_surface;//pointer to rendered surface, never changed
  34
  35 //these are changed by decoder
  36 //used by XvMCRenderSurface function
  37   XvMCSurface* p_past_surface;//pointer to the past surface
  38   XvMCSurface* p_future_surface;//pointer to  the future prediction surface
  39
  40   unsigned int picture_structure;//top/bottom fields or frame!
  41   unsigned int flags;//XVMC_SECOND_FIELD - 1'st or 2'd field in the sequence
  42   unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface,
  43
  44 //these are internal communication ones
  45   int state;//0-free, 1 Waiting to Display, 2 Waiting for prediction
  46   int start_mv_blocks_num;//offset in the array for the current slice, updated by vo
  47   int filled_mv_blocks_num;//processed mv block in this slice, changed by decoder
  48
  49   int next_free_data_block_num;//used in add_mv_block, pointer to next free block
  50 //extensions
  51   void * p_osd_target_surface_render;//pointer to the surface where subpicture is rendered
  52
  53 } xvmc_render_state_t;
  54
  55 #endif /* XVMC_RENDER_H */