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1 /*
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2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
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3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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4 *
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5 * This file is part of FFmpeg.
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6 *
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7 * FFmpeg is free software; you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public
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9 * License as published by the Free Software Foundation; either
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10 * version 2.1 of the License, or (at your option) any later version.
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11 *
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12 * FFmpeg is distributed in the hope that it will be useful,
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13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with FFmpeg; if not, write to the Free Software
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19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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20 */
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21
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22 /**
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23 * @file
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24 * H.264 / AVC / MPEG4 prediction functions.
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25 * @author Michael Niedermayer <michaelni@gmx.at>
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26 */
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27
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28 #ifndef AVCODEC_H264PRED_H
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29 #define AVCODEC_H264PRED_H
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30
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31 #include "libavutil/common.h"
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32 #include "dsputil.h"
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33
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34 /**
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35 * Prediction types
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36 */
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37 //@{
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38 #define VERT_PRED 0
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39 #define HOR_PRED 1
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40 #define DC_PRED 2
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41 #define DIAG_DOWN_LEFT_PRED 3
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42 #define DIAG_DOWN_RIGHT_PRED 4
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43 #define VERT_RIGHT_PRED 5
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44 #define HOR_DOWN_PRED 6
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45 #define VERT_LEFT_PRED 7
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46 #define HOR_UP_PRED 8
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47
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48 #define LEFT_DC_PRED 9
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49 #define TOP_DC_PRED 10
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50 #define DC_128_PRED 11
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51
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52 #define DIAG_DOWN_LEFT_PRED_RV40_NODOWN 12
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53 #define HOR_UP_PRED_RV40_NODOWN 13
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54 #define VERT_LEFT_PRED_RV40_NODOWN 14
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55
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56 #define DC_PRED8x8 0
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57 #define HOR_PRED8x8 1
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58 #define VERT_PRED8x8 2
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59 #define PLANE_PRED8x8 3
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60
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61 #define LEFT_DC_PRED8x8 4
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62 #define TOP_DC_PRED8x8 5
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63 #define DC_128_PRED8x8 6
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64
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65 #define ALZHEIMER_DC_L0T_PRED8x8 7
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66 #define ALZHEIMER_DC_0LT_PRED8x8 8
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67 #define ALZHEIMER_DC_L00_PRED8x8 9
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68 #define ALZHEIMER_DC_0L0_PRED8x8 10
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69 //@}
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70
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71 /**
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72 * Context for storing H.264 prediction functions
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73 */
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74 typedef struct H264PredContext{
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75 void (*pred4x4 [9+3+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
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76 void (*pred8x8l [9+3])(uint8_t *src, int topleft, int topright, int stride);
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77 void (*pred8x8 [4+3+4])(uint8_t *src, int stride);
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78 void (*pred16x16[4+3])(uint8_t *src, int stride);
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79
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80 void (*pred4x4_add [2])(uint8_t *pix/*align 4*/, const DCTELEM *block/*align 16*/, int stride);
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81 void (*pred8x8l_add [2])(uint8_t *pix/*align 8*/, const DCTELEM *block/*align 16*/, int stride);
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82 void (*pred8x8_add [3])(uint8_t *pix/*align 8*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
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83 void (*pred16x16_add[3])(uint8_t *pix/*align 16*/, const int *block_offset, const DCTELEM *block/*align 16*/, int stride);
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84 }H264PredContext;
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85
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86 void ff_h264_pred_init(H264PredContext *h);
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87 void ff_h264_pred_init_arm(H264PredContext *h);
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88
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89
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90 #endif /* AVCODEC_H264PRED_H */
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