1 /*****************************************************************************
2 *
3 * XVID MPEG-4 VIDEO CODEC
4 * - MB coding header -
5 *
6 * Copyright (C) 2002 Michael Militzer <isibaar@xvid.org>
7 *
8 * This program is free software ; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation ; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY ; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program ; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 * $Id: mbcoding.h 1985 2011-05-18 09:02:35Z Isibaar $
23 *
24 ****************************************************************************/
25
26 #ifndef _MB_CODING_H_
27 #define _MB_CODING_H_
28
29 #include "../portab.h"
30 #include "../global.h"
31 #include "vlc_codes.h"
32 #include "bitstream.h"
33
34 void init_vlc_tables(void);
35
36 int check_resync_marker(Bitstream * bs, int addbits);
37
38 void bs_put_spritetrajectory(Bitstream * bs, const int val);
39 int bs_get_spritetrajectory(Bitstream * bs);
40
41 int get_mcbpc_intra(Bitstream * bs);
42 int get_mcbpc_inter(Bitstream * bs);
43 int get_cbpy(Bitstream * bs,
44 int intra);
45 int get_mv(Bitstream * bs,
46 int fcode);
47
48 int get_dc_dif(Bitstream * bs,
49 uint32_t dc_size);
50 int get_dc_size_lum(Bitstream * bs);
51 int get_dc_size_chrom(Bitstream * bs);
52
53 void get_intra_block(Bitstream * bs,
54 int16_t * block,
55 int direction,
56 int coeff);
57 void get_inter_block_h263(
58 Bitstream * bs,
59 int16_t * block,
60 int direction,
61 const int quant,
62 const uint16_t *matrix);
63
64 void get_inter_block_mpeg(
65 Bitstream * bs,
66 int16_t * block,
67 int direction,
68 const int quant,
69 const uint16_t *matrix);
70
71
72 void MBCodingBVOP(const FRAMEINFO * const frame,
73 const MACROBLOCK * mb,
74 const int16_t qcoeff[6 * 64],
75 const int32_t fcode,
76 const int32_t bcode,
77 Bitstream * bs,
78 Statistics * pStat);
79
80
81 static __inline void
MBSkip(Bitstream * bs)82 MBSkip(Bitstream * bs)
83 {
84 BitstreamPutBit(bs, 1); /* not coded */
85 }
86
87 int CodeCoeffIntra_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
88 int CodeCoeffInter_CalcBits(const int16_t qcoeff[64], const uint16_t * zigzag);
89
90 #endif /* _MB_CODING_H_ */
91