xvmc_render.h

   1 #include <X11/Xlib.h>
   2 #include <X11/Xutil.h>
   3 #include <X11/Xatom.h>
   4 #include <X11/extensions/Xv.h>
   5 #include <X11/extensions/Xvlib.h>
   6 #include <X11/extensions/XvMClib.h>
   7
   8
   9 //the surface should be shown, video driver manipulate this
  10 #define MP_XVMC_STATE_DISPLAY_PENDING 1
  11 //the surface is needed for prediction, codec manipulate this
  12 #define MP_XVMC_STATE_PREDICTION 2
  13 //this surface is needed for subpicture rendering
  14 #define MP_XVMC_STATE_OSD_SOURCE 4
  15 //                     1337    IDCT MCo
  16 #define MP_XVMC_RENDER_MAGIC 0x1DC711C0
  17
  18 typedef   struct{
  19 //these are not changed by decoder!
  20   int  magic;
  21
  22   short * data_blocks;
  23   XvMCMacroBlock * mv_blocks;
  24   int total_number_of_mv_blocks;
  25   int total_number_of_data_blocks;
  26   int mc_type;//XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
  27   int idct;//does we use IDCT acceleration?
  28   int chroma_format;//420,422,444
  29   int unsigned_intra;//+-128 for intra pictures after clip
  30   int reserved1[12];//future extenstions (e.g. gmc,qpel)
  31   void * p_osd_target_surface_render;//pointer to the surface where subpicture is rendered
  32   XvMCSurface* p_surface;//pointer to rendered surface, never changed
  33
  34 //these are changed by decoder
  35 //used by XvMCRenderSurface function
  36   XvMCSurface* p_past_surface;//pointer to the past surface
  37   XvMCSurface* p_future_surface;//pointer to  the future prediction surface
  38
  39   unsigned int picture_structure;//top/bottom fields or frame  !
  40   unsigned int flags;//XVMC_SECOND_FIELD - 1'st or 2'd field in the sequence
  41   unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface,
  42
  43 //these are internal communication one
  44   int state;//0-free,1 Waiting to Display,2 Waiting for prediction
  45   int start_mv_blocks_num;//offset in the array for the current slice,updated by vo
  46   int filled_mv_blocks_num;//processed mv block in this slice,change by decoder
  47
  48   int next_free_data_block_num;//used in add_mv_block, pointer to next free block
  49
  50 } xvmc_render_state_t;