vl_mpeg12_bitstream.h revision 31096e13f858daf896c0c53077fb25e92da089a6 
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
35struct vl_mpg12_bs
36{
37   unsigned width, height;
38
39   struct vl_vlc vlc;
40
41   unsigned block_num;
42   unsigned *num_ycbcr_blocks;
43
44   struct vl_ycbcr_block *ycbcr_stream[VL_MAX_PLANES];
45   short *ycbcr_buffer;
46
47   struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
48};
49
50void
51vl_mpg12_bs_init(struct vl_mpg12_bs *bs, unsigned width, unsigned height);
52
53void
54vl_mpg12_bs_set_buffers(struct vl_mpg12_bs *bs, struct vl_ycbcr_block *ycbcr_stream[VL_MAX_PLANES],
55                        short *ycbcr_buffer, struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES]);
56
57void
58vl_mpg12_bs_decode(struct vl_mpg12_bs *bs, unsigned num_bytes, const void *buffer,
59                   struct pipe_mpeg12_picture_desc *picture, unsigned num_ycbcr_blocks[3]);
60
61#endif /* vl_mpeg12_bitstream_h */
62