xvmc_render.h

   1 /*
   2  * Copyright (C) 2003 Ivan Kalvachev
   3  *
   4  * This file is part of FFmpeg.
   5  *
   6  * FFmpeg is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * FFmpeg is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with FFmpeg; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef AVCODEC_XVMC_RENDER_H
  22 #define AVCODEC_XVMC_RENDER_H
  23
  24 #include <X11/Xlib.h>
  25 #include <X11/Xutil.h>
  26 #include <X11/Xatom.h>
  27 #include <X11/extensions/Xv.h>
  28 #include <X11/extensions/Xvlib.h>
  29 #include <X11/extensions/XvMClib.h>
  30
  31
  32 //the surface should be shown, the video driver manipulates this
  33 #define MP_XVMC_STATE_DISPLAY_PENDING 1
  34 //the surface is needed for prediction, the codec manipulates this
  35 #define MP_XVMC_STATE_PREDICTION 2
  36 //this surface is needed for subpicture rendering
  37 #define MP_XVMC_STATE_OSD_SOURCE 4
  38 //                     1337    IDCT MCo
  39 #define MP_XVMC_RENDER_MAGIC 0x1DC711C0
  40
  41 struct xvmc_render_state {
  42     //these are not changed by the decoder!
  43     int  magic;
  44
  45     short * data_blocks;
  46     XvMCMacroBlock * mv_blocks;
  47     int total_number_of_mv_blocks;
  48     int total_number_of_data_blocks;
  49     int mc_type; //XVMC_MPEG1/2/4,XVMC_H263 without XVMC_IDCT
  50     int idct; //Do we use IDCT acceleration?
  51     int chroma_format; //420, 422, 444
  52     int unsigned_intra; //+-128 for intra pictures after clipping
  53     XvMCSurface* p_surface; //pointer to rendered surface, never changed
  54
  55     //these are changed by the decoder
  56     //used by the XvMCRenderSurface function
  57     XvMCSurface* p_past_surface; //pointer to the past surface
  58     XvMCSurface* p_future_surface; //pointer to the future prediction surface
  59
  60     unsigned int picture_structure; //top/bottom fields or frame!
  61     unsigned int flags; //XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
  62     unsigned int display_flags; //1,2 or 1+2 fields for XvMCPutSurface
  63
  64     //these are for internal communication
  65     int state; //0 - free, 1 - waiting to display, 2 - waiting for prediction
  66     int start_mv_blocks_num; //offset in the array for the current slice, updated by vo
  67     int filled_mv_blocks_num; //processed mv block in this slice, changed by decoder
  68
  69     int next_free_data_block_num; //used in add_mv_block, pointer to next free block
  70     //extensions
  71     void * p_osd_target_surface_render; //pointer to the surface where subpicture is rendered
  72
  73 };
  74
  75 #endif /* AVCODEC_XVMC_RENDER_H */