src/gallium/auxiliary/vl/vl_mpeg12_bitstream.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2011 Christian König.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef vl_mpeg12_bitstream_h
  29 #define vl_mpeg12_bitstream_h
  30
  31 #include "vl_defines.h"
  32 #include "vl_vlc.h"
  33
  34 struct vl_mpg12_bs
  35 {
  36    struct pipe_video_codec *decoder;
  37
  38    struct pipe_mpeg12_picture_desc *desc;
  39    struct dct_coeff *intra_dct_tbl;
  40
  41    struct vl_vlc vlc;
  42    short pred_dc[3];
  43 };
  44
  45 void
  46 vl_mpg12_bs_init(struct vl_mpg12_bs *bs, struct pipe_video_codec *decoder);
  47
  48 void
  49 vl_mpg12_bs_decode(struct vl_mpg12_bs *bs,
  50                    struct pipe_video_buffer *target,
  51                    struct pipe_mpeg12_picture_desc *picture,
  52                    unsigned num_buffers,
  53                    const void * const *buffers,
  54                    const unsigned *sizes);
  55
  56 #endif /* vl_mpeg12_bitstream_h */