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1 /*
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2 * Copyright (c) 2003-2010 Michael Niedermayer <michaelni@gmx.at>
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3 *
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4 * This file is part of FFmpeg.
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5 *
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6 * FFmpeg is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
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8 * License as published by the Free Software Foundation; either
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9 * version 2.1 of the License, or (at your option) any later version.
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10 *
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11 * FFmpeg is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Lesser General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Lesser General Public
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17 * License along with FFmpeg; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 */
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20
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21 /**
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22 * @file
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23 * H.264 DSP functions.
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24 * @author Michael Niedermayer <michaelni@gmx.at>
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25 */
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26
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27 #ifndef AVCODEC_H264DSP_H
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28 #define AVCODEC_H264DSP_H
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29
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30 #include <stdint.h>
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31 #include "dsputil.h"
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32
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33 //typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
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34 typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
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35 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
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36
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37 /**
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38 * Context for storing H.264 DSP functions
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39 */
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40 typedef struct H264DSPContext{
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41 /* weighted MC */
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42 h264_weight_func weight_h264_pixels_tab[10];
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43 h264_biweight_func biweight_h264_pixels_tab[10];
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44
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45 /* loop filter */
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46 void (*h264_v_loop_filter_luma)(uint8_t *pix/*align 16*/, int stride, int alpha, int beta, int8_t *tc0);
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47 void (*h264_h_loop_filter_luma)(uint8_t *pix/*align 4 */, int stride, int alpha, int beta, int8_t *tc0);
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48 /* v/h_loop_filter_luma_intra: align 16 */
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49 void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);
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50 void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta);
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51 void (*h264_v_loop_filter_chroma)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta, int8_t *tc0);
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52 void (*h264_h_loop_filter_chroma)(uint8_t *pix/*align 4*/, int stride, int alpha, int beta, int8_t *tc0);
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53 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);
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54 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix/*align 8*/, int stride, int alpha, int beta);
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55 // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
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56 void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
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57 int bidir, int edges, int step, int mask_mv0, int mask_mv1, int field);
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58
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59 /* IDCT */
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60 /* NOTE!!! if you implement any of h264_idct8_add, h264_idct8_add4 then you must implement all of them
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61 NOTE!!! if you implement any of h264_idct_add, h264_idct_add16, h264_idct_add16intra, h264_idct_add8 then you must implement all of them
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62 The reason for above, is that no 2 out of one list may use a different permutation.
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63 */
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64 void (*h264_idct_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);
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65 void (*h264_idct8_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);
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66 void (*h264_idct_dc_add)(uint8_t *dst/*align 4*/, DCTELEM *block/*align 16*/, int stride);
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67 void (*h264_idct8_dc_add)(uint8_t *dst/*align 8*/, DCTELEM *block/*align 16*/, int stride);
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68 void (*h264_dct)(DCTELEM block[4][4]);
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69 void (*h264_idct_add16)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
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70 void (*h264_idct8_add4)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
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71 void (*h264_idct_add8)(uint8_t **dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
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72 void (*h264_idct_add16intra)(uint8_t *dst/*align 16*/, const int *blockoffset, DCTELEM *block/*align 16*/, int stride, const uint8_t nnzc[6*8]);
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73
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74 qpel_mc_func (*qpel_put)[16];
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75 qpel_mc_func (*qpel_avg)[16];
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76 }H264DSPContext;
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77
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78 void ff_h264dsp_init(H264DSPContext *c);
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79 void ff_h264dsp_init_arm(H264DSPContext *c);
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80 void ff_h264dsp_init_ppc(H264DSPContext *c);
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81 void ff_h264dsp_init_x86(H264DSPContext *c);
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82
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83 #endif /* AVCODEC_H264DSP_H */
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