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