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| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2003-2010 Michael Niedermayer |
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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 | |||
| 21 | /** |
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| 22 | * @file |
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| 23 | * H.264 DSP functions. |
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| 24 | * @author Michael Niedermayer |
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| 25 | */ |
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| 26 | |||
| 27 | #ifndef AVCODEC_H264DSP_H |
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| 28 | #define AVCODEC_H264DSP_H |
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| 29 | |||
| 30 | #include |
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| 31 | |||
| 32 | typedef void (*h264_weight_func)(uint8_t *block, int stride, int height, |
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| 33 | int log2_denom, int weight, int offset); |
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| 34 | typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, |
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| 35 | int stride, int height, int log2_denom, |
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| 36 | int weightd, int weights, int offset); |
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| 37 | |||
| 38 | /** |
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| 39 | * Context for storing H.264 DSP functions |
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| 40 | */ |
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| 41 | typedef struct H264DSPContext { |
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| 42 | /* weighted MC */ |
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| 43 | h264_weight_func weight_h264_pixels_tab[4]; |
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| 44 | h264_biweight_func biweight_h264_pixels_tab[4]; |
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| 45 | |||
| 46 | /* loop filter */ |
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| 47 | void (*h264_v_loop_filter_luma)(uint8_t *pix /*align 16*/, int stride, |
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| 48 | int alpha, int beta, int8_t *tc0); |
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| 49 | void (*h264_h_loop_filter_luma)(uint8_t *pix /*align 4 */, int stride, |
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| 50 | int alpha, int beta, int8_t *tc0); |
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| 51 | void (*h264_h_loop_filter_luma_mbaff)(uint8_t *pix /*align 16*/, int stride, |
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| 52 | int alpha, int beta, int8_t *tc0); |
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| 53 | /* v/h_loop_filter_luma_intra: align 16 */ |
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| 54 | void (*h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, |
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| 55 | int alpha, int beta); |
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| 56 | void (*h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, |
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| 57 | int alpha, int beta); |
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| 58 | void (*h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix /*align 16*/, |
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| 59 | int stride, int alpha, int beta); |
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| 60 | void (*h264_v_loop_filter_chroma)(uint8_t *pix /*align 8*/, int stride, |
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| 61 | int alpha, int beta, int8_t *tc0); |
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| 62 | void (*h264_h_loop_filter_chroma)(uint8_t *pix /*align 4*/, int stride, |
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| 63 | int alpha, int beta, int8_t *tc0); |
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| 64 | void (*h264_h_loop_filter_chroma_mbaff)(uint8_t *pix /*align 8*/, |
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| 65 | int stride, int alpha, int beta, |
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| 66 | int8_t *tc0); |
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| 67 | void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/, |
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| 68 | int stride, int alpha, int beta); |
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| 69 | void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix /*align 8*/, |
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| 70 | int stride, int alpha, int beta); |
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| 71 | void (*h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix /*align 8*/, |
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| 72 | int stride, int alpha, int beta); |
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| 73 | // h264_loop_filter_strength: simd only. the C version is inlined in h264.c |
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| 74 | void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40], |
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| 75 | int8_t ref[2][40], int16_t mv[2][40][2], |
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| 76 | int bidir, int edges, int step, |
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| 77 | int mask_mv0, int mask_mv1, int field); |
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| 78 | |||
| 79 | /* IDCT */ |
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| 80 | void (*h264_idct_add)(uint8_t *dst /*align 4*/, |
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| 81 | int16_t *block /*align 16*/, int stride); |
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| 82 | void (*h264_idct8_add)(uint8_t *dst /*align 8*/, |
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| 83 | int16_t *block /*align 16*/, int stride); |
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| 84 | void (*h264_idct_dc_add)(uint8_t *dst /*align 4*/, |
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| 85 | int16_t *block /*align 16*/, int stride); |
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| 86 | void (*h264_idct8_dc_add)(uint8_t *dst /*align 8*/, |
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| 87 | int16_t *block /*align 16*/, int stride); |
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| 88 | |||
| 89 | void (*h264_idct_add16)(uint8_t *dst /*align 16*/, const int *blockoffset, |
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| 90 | int16_t *block /*align 16*/, int stride, |
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| 91 | const uint8_t nnzc[15 * 8]); |
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| 92 | void (*h264_idct8_add4)(uint8_t *dst /*align 16*/, const int *blockoffset, |
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| 93 | int16_t *block /*align 16*/, int stride, |
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| 94 | const uint8_t nnzc[15 * 8]); |
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| 95 | void (*h264_idct_add8)(uint8_t **dst /*align 16*/, const int *blockoffset, |
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| 96 | int16_t *block /*align 16*/, int stride, |
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| 97 | const uint8_t nnzc[15 * 8]); |
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| 98 | void (*h264_idct_add16intra)(uint8_t *dst /*align 16*/, const int *blockoffset, |
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| 99 | int16_t *block /*align 16*/, |
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| 100 | int stride, const uint8_t nnzc[15 * 8]); |
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| 101 | void (*h264_luma_dc_dequant_idct)(int16_t *output, |
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| 102 | int16_t *input /*align 16*/, int qmul); |
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| 103 | void (*h264_chroma_dc_dequant_idct)(int16_t *block, int qmul); |
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| 104 | |||
| 105 | /* bypass-transform */ |
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| 106 | void (*h264_add_pixels8_clear)(uint8_t *dst, int16_t *block, int stride); |
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| 107 | void (*h264_add_pixels4_clear)(uint8_t *dst, int16_t *block, int stride); |
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| 108 | |||
| 109 | /** |
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| 110 | * Search buf from the start for up to size bytes. Return the index |
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| 111 | * of a zero byte, or >= size if not found. Ideally, use lookahead |
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| 112 | * to filter out any zero bytes that are known to not be followed by |
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| 113 | * one or more further zero bytes and a one byte. Better still, filter |
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| 114 | * out any bytes that form the trailing_zero_8bits syntax element too. |
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| 115 | */ |
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| 116 | int (*h264_find_start_code_candidate)(const uint8_t *buf, int size); |
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| 117 | } H264DSPContext; |
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| 118 | |||
| 119 | void ff_h264dsp_init(H264DSPContext *c, const int bit_depth, |
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| 120 | const int chroma_format_idc); |
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| 121 | void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth, |
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| 122 | const int chroma_format_idc); |
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| 123 | void ff_h264dsp_init_ppc(H264DSPContext *c, const int bit_depth, |
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| 124 | const int chroma_format_idc); |
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| 125 | void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth, |
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| 126 | const int chroma_format_idc); |
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| 127 | |||
| 128 | #endif /* AVCODEC_H264DSP_H */ |