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 / MPEG4 prediction functions.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28#ifndef AVCODEC_H264PRED_H
29#define AVCODEC_H264PRED_H
30
31#include "libavutil/common.h"
32#include "dsputil.h"
33
34/**
35 * Prediction types
36 */
37//@{
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#define LEFT_DC_PRED          9
49#define TOP_DC_PRED           10
50#define DC_128_PRED           11
51
52#define DIAG_DOWN_LEFT_PRED_RV40_NODOWN   12
53#define HOR_UP_PRED_RV40_NODOWN           13
54#define VERT_LEFT_PRED_RV40_NODOWN        14
55
56#define DC_PRED8x8            0
57#define HOR_PRED8x8           1
58#define VERT_PRED8x8          2
59#define PLANE_PRED8x8         3
60
61#define LEFT_DC_PRED8x8       4
62#define TOP_DC_PRED8x8        5
63#define DC_128_PRED8x8        6
64
65#define ALZHEIMER_DC_L0T_PRED8x8 7
66#define ALZHEIMER_DC_0LT_PRED8x8 8
67#define ALZHEIMER_DC_L00_PRED8x8 9
68#define ALZHEIMER_DC_0L0_PRED8x8 10
69//@}
70
71/**
72 * Context for storing H.264 prediction functions
73 */
74typedef struct H264PredContext{
75    void (*pred4x4  [9+3+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
76    void (*pred8x8l [9+3])(uint8_t *src, int topleft, int topright, int stride);
77    void (*pred8x8  [4+3+4])(uint8_t *src, int stride);
78    void (*pred16x16[4+3])(uint8_t *src, int stride);
79
80    void (*pred4x4_add  [2])(uint8_t *pix/*align  4*/, const DCTELEM *block/*align 16*/, int stride);
81    void (*pred8x8l_add [2])(uint8_t *pix/*align  8*/, const DCTELEM *block/*align 16*/, int stride);
82    void (*pred8x8_add  [3])(uint8_t *pix/*align  8*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
83    void (*pred16x16_add[3])(uint8_t *pix/*align 16*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
84}H264PredContext;
85
86void ff_h264_pred_init(H264PredContext *h, int codec_id);
87void ff_h264_pred_init_arm(H264PredContext *h, int codec_id);
88
89#endif /* AVCODEC_H264PRED_H */
90