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 FFmpeg.
6 *
7 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * H.264 / AVC / MPEG-4 prediction functions.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #ifndef AVCODEC_H264PRED_H
29 #define AVCODEC_H264PRED_H
30
31 #include <stddef.h>
32 #include <stdint.h>
33
34 /**
35 * Prediction types
36 */
37 //@{
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
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 ///< "True Motion", used instead of plane
60 #define VERT_VP8_PRED 10
///< for VP8, #VERT_PRED is the average of
61 ///< (left col+cur col x2+right col) / 4;
62 ///< this is the "unaveraged" one
63 #define HOR_VP8_PRED 14
///< unaveraged version of #HOR_PRED, see
64 ///< #VERT_VP8_PRED for details
65 #define DC_127_PRED 12
66 #define DC_129_PRED 13
67
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 // H.264/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
89 /**
90 * Context for storing H.264 prediction functions
91 */
93 void(*
pred4x4[9 + 3 + 3])(uint8_t *
src,
const uint8_t *topright,
95 void(*
pred8x8l[9 + 3])(uint8_t *
src,
int topleft,
int topright,
99
105 int16_t *
block /*align 16*/,
int topleft,
int topright, ptrdiff_t
stride);
107 const int *block_offset,
110 const int *block_offset,
113
115 const int bit_depth,
const int chroma_format_idc);
118 const int chroma_format_idc);
120 const int bit_depth,
const int chroma_format_idc);
122 const int bit_depth,
const int chroma_format_idc);
124 const int bit_depth,
const int chroma_format_idc);
126 const int bit_depth,
const int chroma_format_idc);
127
128 #endif /* AVCODEC_H264PRED_H */