h264pred.h
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1 /*
2  * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3  * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
28 #ifndef AVCODEC_H264PRED_H
29 #define AVCODEC_H264PRED_H
30 
31 #include "libavutil/common.h"
32 #include "dsputil.h"
33 
38 #define VERT_PRED 0
39 #define HOR_PRED 1
40 #define DC_PRED 2
41 #define DIAG_DOWN_LEFT_PRED 3
42 #define DIAG_DOWN_RIGHT_PRED 4
43 #define VERT_RIGHT_PRED 5
44 #define HOR_DOWN_PRED 6
45 #define VERT_LEFT_PRED 7
46 #define HOR_UP_PRED 8
47 
48 // DC edge (not for VP8)
49 #define LEFT_DC_PRED 9
50 #define TOP_DC_PRED 10
51 #define DC_128_PRED 11
52 
53 // RV40 specific
54 #define DIAG_DOWN_LEFT_PRED_RV40_NODOWN 12
55 #define HOR_UP_PRED_RV40_NODOWN 13
56 #define VERT_LEFT_PRED_RV40_NODOWN 14
57 
58 // VP8 specific
59 #define TM_VP8_PRED 9
60 #define VERT_VP8_PRED 10
61 
62 
63 #define HOR_VP8_PRED 11
64 
65 #define DC_127_PRED 12
66 #define DC_129_PRED 13
67 
68 #define DC_PRED8x8 0
69 #define HOR_PRED8x8 1
70 #define VERT_PRED8x8 2
71 #define PLANE_PRED8x8 3
72 
73 // DC edge
74 #define LEFT_DC_PRED8x8 4
75 #define TOP_DC_PRED8x8 5
76 #define DC_128_PRED8x8 6
77 
78 // H264/SVQ3 (8x8) specific
79 #define ALZHEIMER_DC_L0T_PRED8x8 7
80 #define ALZHEIMER_DC_0LT_PRED8x8 8
81 #define ALZHEIMER_DC_L00_PRED8x8 9
82 #define ALZHEIMER_DC_0L0_PRED8x8 10
83 
84 // VP8 specific
85 #define DC_127_PRED8x8 7
86 #define DC_129_PRED8x8 8
87 
88 
92 typedef struct H264PredContext{
93  void (*pred4x4 [9+3+3])(uint8_t *src, const uint8_t *topright, int stride);//FIXME move to dsp?
94  void (*pred8x8l [9+3])(uint8_t *src, int topleft, int topright, int stride);
95  void (*pred8x8 [4+3+4])(uint8_t *src, int stride);
96  void (*pred16x16[4+3+2])(uint8_t *src, int stride);
97 
98  void (*pred4x4_add [2])(uint8_t *pix/*align 4*/, const DCTELEM *block/*align 16*/, int stride);
99  void (*pred8x8l_add [2])(uint8_t *pix/*align 8*/, const DCTELEM *block/*align 16*/, int stride);
100  void (*pred8x8_add [3])(uint8_t *pix/*align 8*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
101  void (*pred16x16_add[3])(uint8_t *pix/*align 16*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
103 
104 void ff_h264_pred_init(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc);
105 void ff_h264_pred_init_arm(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc);
106 void ff_h264_pred_init_x86(H264PredContext *h, int codec_id, const int bit_depth, const int chroma_format_idc);
107 
108 #endif /* AVCODEC_H264PRED_H */