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 #include "vl_vertex_buffers.h"
  34
  35 struct vl_mpg12_bs
  36 {
  37    unsigned width, height;
  38
  39    struct vl_vlc vlc;
  40
  41    unsigned *num_ycbcr_blocks;
  42
  43    struct vl_ycbcr_block *ycbcr_stream[VL_MAX_PLANES];
  44    short *ycbcr_buffer[VL_MAX_PLANES];
  45
  46    struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
  47 };
  48
  49 void
  50 vl_mpg12_bs_init(struct vl_mpg12_bs *bs, unsigned width, unsigned height);
  51
  52 void
  53 vl_mpg12_bs_set_buffers(struct vl_mpg12_bs *bs, struct vl_ycbcr_block *ycbcr_stream[VL_MAX_PLANES],
  54                         short *ycbcr_buffer[VL_MAX_PLANES], struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES]);
  55
  56 void
  57 vl_mpg12_bs_decode(struct vl_mpg12_bs *bs, unsigned num_bytes, const void *buffer,
  58                    struct pipe_mpeg12_picture_desc *picture, unsigned num_ycbcr_blocks[3]);
  59
  60 #endif /* vl_mpeg12_bitstream_h */