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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* |
| 2 | * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder |
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| 3 | * Copyright (c) 2003-2011 Michael Niedermayer |
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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 | |||
| 22 | /** |
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| 23 | * @file |
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| 24 | * H.264 / AVC / MPEG4 part10 DSP functions. |
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| 25 | * @author Michael Niedermayer |
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| 26 | */ |
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| 27 | |||
| 28 | #include "bit_depth_template.c" |
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| 29 | |||
| 30 | #define op_scale1(x) block[x] = av_clip_pixel( (block[x]*weight + offset) >> log2_denom ) |
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| 31 | #define op_scale2(x) dst[x] = av_clip_pixel( (src[x]*weights + dst[x]*weightd + offset) >> (log2_denom+1)) |
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| 32 | #define H264_WEIGHT(W) \ |
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| 33 | static void FUNCC(weight_h264_pixels ## W)(uint8_t *_block, int stride, int height, \ |
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| 34 | int log2_denom, int weight, int offset) \ |
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| 35 | { \ |
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| 36 | int y; \ |
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| 37 | pixel *block = (pixel*)_block; \ |
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| 38 | stride >>= sizeof(pixel)-1; \ |
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| 39 | offset <<= (log2_denom + (BIT_DEPTH-8)); \ |
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| 40 | if(log2_denom) offset += 1<<(log2_denom-1); \ |
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| 41 | for (y = 0; y < height; y++, block += stride) { \ |
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| 42 | op_scale1(0); \ |
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| 43 | op_scale1(1); \ |
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| 44 | if(W==2) continue; \ |
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| 45 | op_scale1(2); \ |
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| 46 | op_scale1(3); \ |
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| 47 | if(W==4) continue; \ |
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| 48 | op_scale1(4); \ |
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| 49 | op_scale1(5); \ |
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| 50 | op_scale1(6); \ |
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| 51 | op_scale1(7); \ |
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| 52 | if(W==8) continue; \ |
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| 53 | op_scale1(8); \ |
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| 54 | op_scale1(9); \ |
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| 55 | op_scale1(10); \ |
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| 56 | op_scale1(11); \ |
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| 57 | op_scale1(12); \ |
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| 58 | op_scale1(13); \ |
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| 59 | op_scale1(14); \ |
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| 60 | op_scale1(15); \ |
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| 61 | } \ |
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| 62 | } \ |
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| 63 | static void FUNCC(biweight_h264_pixels ## W)(uint8_t *_dst, uint8_t *_src, int stride, int height, \ |
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| 64 | int log2_denom, int weightd, int weights, int offset) \ |
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| 65 | { \ |
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| 66 | int y; \ |
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| 67 | pixel *dst = (pixel*)_dst; \ |
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| 68 | pixel *src = (pixel*)_src; \ |
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| 69 | stride >>= sizeof(pixel)-1; \ |
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| 70 | offset <<= (BIT_DEPTH-8); \ |
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| 71 | offset = ((offset + 1) | 1) << log2_denom; \ |
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| 72 | for (y = 0; y < height; y++, dst += stride, src += stride) { \ |
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| 73 | op_scale2(0); \ |
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| 74 | op_scale2(1); \ |
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| 75 | if(W==2) continue; \ |
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| 76 | op_scale2(2); \ |
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| 77 | op_scale2(3); \ |
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| 78 | if(W==4) continue; \ |
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| 79 | op_scale2(4); \ |
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| 80 | op_scale2(5); \ |
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| 81 | op_scale2(6); \ |
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| 82 | op_scale2(7); \ |
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| 83 | if(W==8) continue; \ |
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| 84 | op_scale2(8); \ |
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| 85 | op_scale2(9); \ |
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| 86 | op_scale2(10); \ |
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| 87 | op_scale2(11); \ |
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| 88 | op_scale2(12); \ |
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| 89 | op_scale2(13); \ |
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| 90 | op_scale2(14); \ |
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| 91 | op_scale2(15); \ |
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| 92 | } \ |
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| 93 | } |
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| 94 | |||
| 95 | H264_WEIGHT(16) |
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| 96 | H264_WEIGHT(8) |
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| 97 | H264_WEIGHT(4) |
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| 98 | H264_WEIGHT(2) |
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| 99 | |||
| 100 | #undef op_scale1 |
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| 101 | #undef op_scale2 |
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| 102 | #undef H264_WEIGHT |
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| 103 | |||
| 104 | static av_always_inline av_flatten void FUNCC(h264_loop_filter_luma)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta, int8_t *tc0) |
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| 105 | { |
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| 106 | pixel *pix = (pixel*)p_pix; |
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| 107 | int i, d; |
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| 108 | xstride >>= sizeof(pixel)-1; |
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| 109 | ystride >>= sizeof(pixel)-1; |
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| 110 | alpha <<= BIT_DEPTH - 8; |
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| 111 | beta <<= BIT_DEPTH - 8; |
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| 112 | for( i = 0; i < 4; i++ ) { |
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| 113 | const int tc_orig = tc0[i] << (BIT_DEPTH - 8); |
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| 114 | if( tc_orig < 0 ) { |
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| 115 | pix += inner_iters*ystride; |
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| 116 | continue; |
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| 117 | } |
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| 118 | for( d = 0; d < inner_iters; d++ ) { |
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| 119 | const int p0 = pix[-1*xstride]; |
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| 120 | const int p1 = pix[-2*xstride]; |
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| 121 | const int p2 = pix[-3*xstride]; |
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| 122 | const int q0 = pix[0]; |
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| 123 | const int q1 = pix[1*xstride]; |
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| 124 | const int q2 = pix[2*xstride]; |
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| 125 | |||
| 126 | if( FFABS( p0 - q0 ) < alpha && |
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| 127 | FFABS( p1 - p0 ) < beta && |
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| 128 | FFABS( q1 - q0 ) < beta ) { |
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| 129 | |||
| 130 | int tc = tc_orig; |
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| 131 | int i_delta; |
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| 132 | |||
| 133 | if( FFABS( p2 - p0 ) < beta ) { |
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| 134 | if(tc_orig) |
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| 135 | pix[-2*xstride] = p1 + av_clip( (( p2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - p1, -tc_orig, tc_orig ); |
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| 136 | tc++; |
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| 137 | } |
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| 138 | if( FFABS( q2 - q0 ) < beta ) { |
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| 139 | if(tc_orig) |
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| 140 | pix[ xstride] = q1 + av_clip( (( q2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - q1, -tc_orig, tc_orig ); |
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| 141 | tc++; |
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| 142 | } |
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| 143 | |||
| 144 | i_delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc ); |
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| 145 | pix[-xstride] = av_clip_pixel( p0 + i_delta ); /* p0' */ |
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| 146 | pix[0] = av_clip_pixel( q0 - i_delta ); /* q0' */ |
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| 147 | } |
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| 148 | pix += ystride; |
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| 149 | } |
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| 150 | } |
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| 151 | } |
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| 152 | static void FUNCC(h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 153 | { |
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| 154 | FUNCC(h264_loop_filter_luma)(pix, stride, sizeof(pixel), 4, alpha, beta, tc0); |
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| 155 | } |
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| 156 | static void FUNCC(h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 157 | { |
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| 158 | FUNCC(h264_loop_filter_luma)(pix, sizeof(pixel), stride, 4, alpha, beta, tc0); |
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| 159 | } |
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| 160 | static void FUNCC(h264_h_loop_filter_luma_mbaff)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 161 | { |
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| 162 | FUNCC(h264_loop_filter_luma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0); |
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| 163 | } |
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| 164 | |||
| 165 | static av_always_inline av_flatten void FUNCC(h264_loop_filter_luma_intra)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta) |
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| 166 | { |
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| 167 | pixel *pix = (pixel*)p_pix; |
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| 168 | int d; |
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| 169 | xstride >>= sizeof(pixel)-1; |
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| 170 | ystride >>= sizeof(pixel)-1; |
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| 171 | alpha <<= BIT_DEPTH - 8; |
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| 172 | beta <<= BIT_DEPTH - 8; |
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| 173 | for( d = 0; d < 4 * inner_iters; d++ ) { |
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| 174 | const int p2 = pix[-3*xstride]; |
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| 175 | const int p1 = pix[-2*xstride]; |
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| 176 | const int p0 = pix[-1*xstride]; |
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| 177 | |||
| 178 | const int q0 = pix[ 0*xstride]; |
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| 179 | const int q1 = pix[ 1*xstride]; |
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| 180 | const int q2 = pix[ 2*xstride]; |
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| 181 | |||
| 182 | if( FFABS( p0 - q0 ) < alpha && |
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| 183 | FFABS( p1 - p0 ) < beta && |
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| 184 | FFABS( q1 - q0 ) < beta ) { |
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| 185 | |||
| 186 | if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){ |
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| 187 | if( FFABS( p2 - p0 ) < beta) |
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| 188 | { |
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| 189 | const int p3 = pix[-4*xstride]; |
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| 190 | /* p0', p1', p2' */ |
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| 191 | pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3; |
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| 192 | pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2; |
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| 193 | pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3; |
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| 194 | } else { |
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| 195 | /* p0' */ |
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| 196 | pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; |
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| 197 | } |
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| 198 | if( FFABS( q2 - q0 ) < beta) |
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| 199 | { |
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| 200 | const int q3 = pix[3*xstride]; |
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| 201 | /* q0', q1', q2' */ |
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| 202 | pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3; |
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| 203 | pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2; |
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| 204 | pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3; |
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| 205 | } else { |
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| 206 | /* q0' */ |
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| 207 | pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2; |
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| 208 | } |
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| 209 | }else{ |
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| 210 | /* p0', q0' */ |
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| 211 | pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; |
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| 212 | pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2; |
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| 213 | } |
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| 214 | } |
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| 215 | pix += ystride; |
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| 216 | } |
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| 217 | } |
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| 218 | static void FUNCC(h264_v_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 219 | { |
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| 220 | FUNCC(h264_loop_filter_luma_intra)(pix, stride, sizeof(pixel), 4, alpha, beta); |
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| 221 | } |
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| 222 | static void FUNCC(h264_h_loop_filter_luma_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 223 | { |
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| 224 | FUNCC(h264_loop_filter_luma_intra)(pix, sizeof(pixel), stride, 4, alpha, beta); |
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| 225 | } |
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| 226 | static void FUNCC(h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 227 | { |
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| 228 | FUNCC(h264_loop_filter_luma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta); |
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| 229 | } |
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| 230 | |||
| 231 | static av_always_inline av_flatten void FUNCC(h264_loop_filter_chroma)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta, int8_t *tc0) |
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| 232 | { |
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| 233 | pixel *pix = (pixel*)p_pix; |
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| 234 | int i, d; |
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| 235 | alpha <<= BIT_DEPTH - 8; |
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| 236 | beta <<= BIT_DEPTH - 8; |
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| 237 | xstride >>= sizeof(pixel)-1; |
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| 238 | ystride >>= sizeof(pixel)-1; |
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| 239 | for( i = 0; i < 4; i++ ) { |
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| 240 | const int tc = ((tc0[i] - 1) << (BIT_DEPTH - 8)) + 1; |
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| 241 | if( tc <= 0 ) { |
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| 242 | pix += inner_iters*ystride; |
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| 243 | continue; |
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| 244 | } |
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| 245 | for( d = 0; d < inner_iters; d++ ) { |
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| 246 | const int p0 = pix[-1*xstride]; |
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| 247 | const int p1 = pix[-2*xstride]; |
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| 248 | const int q0 = pix[0]; |
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| 249 | const int q1 = pix[1*xstride]; |
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| 250 | |||
| 251 | if( FFABS( p0 - q0 ) < alpha && |
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| 252 | FFABS( p1 - p0 ) < beta && |
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| 253 | FFABS( q1 - q0 ) < beta ) { |
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| 254 | |||
| 255 | int delta = av_clip( (((q0 - p0 ) << 2) + (p1 - q1) + 4) >> 3, -tc, tc ); |
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| 256 | |||
| 257 | pix[-xstride] = av_clip_pixel( p0 + delta ); /* p0' */ |
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| 258 | pix[0] = av_clip_pixel( q0 - delta ); /* q0' */ |
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| 259 | } |
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| 260 | pix += ystride; |
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| 261 | } |
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| 262 | } |
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| 263 | } |
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| 264 | static void FUNCC(h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 265 | { |
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| 266 | FUNCC(h264_loop_filter_chroma)(pix, stride, sizeof(pixel), 2, alpha, beta, tc0); |
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| 267 | } |
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| 268 | static void FUNCC(h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 269 | { |
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| 270 | FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0); |
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| 271 | } |
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| 272 | static void FUNCC(h264_h_loop_filter_chroma_mbaff)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 273 | { |
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| 274 | FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 1, alpha, beta, tc0); |
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| 275 | } |
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| 276 | static void FUNCC(h264_h_loop_filter_chroma422)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 277 | { |
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| 278 | FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 4, alpha, beta, tc0); |
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| 279 | } |
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| 280 | static void FUNCC(h264_h_loop_filter_chroma422_mbaff)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0) |
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| 281 | { |
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| 282 | FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0); |
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| 283 | } |
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| 284 | |||
| 285 | static av_always_inline av_flatten void FUNCC(h264_loop_filter_chroma_intra)(uint8_t *p_pix, int xstride, int ystride, int inner_iters, int alpha, int beta) |
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| 286 | { |
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| 287 | pixel *pix = (pixel*)p_pix; |
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| 288 | int d; |
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| 289 | xstride >>= sizeof(pixel)-1; |
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| 290 | ystride >>= sizeof(pixel)-1; |
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| 291 | alpha <<= BIT_DEPTH - 8; |
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| 292 | beta <<= BIT_DEPTH - 8; |
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| 293 | for( d = 0; d < 4 * inner_iters; d++ ) { |
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| 294 | const int p0 = pix[-1*xstride]; |
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| 295 | const int p1 = pix[-2*xstride]; |
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| 296 | const int q0 = pix[0]; |
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| 297 | const int q1 = pix[1*xstride]; |
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| 298 | |||
| 299 | if( FFABS( p0 - q0 ) < alpha && |
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| 300 | FFABS( p1 - p0 ) < beta && |
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| 301 | FFABS( q1 - q0 ) < beta ) { |
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| 302 | |||
| 303 | pix[-xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */ |
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| 304 | pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */ |
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| 305 | } |
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| 306 | pix += ystride; |
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| 307 | } |
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| 308 | } |
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| 309 | static void FUNCC(h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 310 | { |
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| 311 | FUNCC(h264_loop_filter_chroma_intra)(pix, stride, sizeof(pixel), 2, alpha, beta); |
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| 312 | } |
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| 313 | static void FUNCC(h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 314 | { |
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| 315 | FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta); |
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| 316 | } |
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| 317 | static void FUNCC(h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 318 | { |
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| 319 | FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 1, alpha, beta); |
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| 320 | } |
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| 321 | static void FUNCC(h264_h_loop_filter_chroma422_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 322 | { |
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| 323 | FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 4, alpha, beta); |
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| 324 | } |
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| 325 | static void FUNCC(h264_h_loop_filter_chroma422_mbaff_intra)(uint8_t *pix, int stride, int alpha, int beta) |
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| 326 | { |
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| 327 | FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta); |
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| 328 | } |