FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/h264dsp_template.c
Date: 2025-09-01 20:07:09
Exec Total Coverage
Lines: 162 162 100.0%
Functions: 74 140 52.9%
Branches: 70 70 100.0%
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1 /*
2 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
3 * Copyright (c) 2003-2011 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 / MPEG-4 part10 DSP functions.
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #include "bit_depth_template.c"
29
30 #define op_scale1(x) block[x] = av_clip_pixel( (block[x]*weight + offset) >> log2_denom )
31 #define op_scale2(x) dst[x] = av_clip_pixel( (src[x]*weights + dst[x]*weightd + offset) >> (log2_denom+1))
32 #define H264_WEIGHT(W) \
33 static void FUNCC(weight_h264_pixels ## W)(uint8_t *_block, ptrdiff_t stride, int height, \
34 int log2_denom, int weight, int offset) \
35 { \
36 int y; \
37 pixel *block = (pixel*)_block; \
38 stride >>= sizeof(pixel)-1; \
39 offset = (unsigned)offset << (log2_denom + (BIT_DEPTH-8)); \
40 if(log2_denom) offset += 1<<(log2_denom-1); \
41 for (y = 0; y < height; y++, block += stride) { \
42 op_scale1(0); \
43 op_scale1(1); \
44 if(W==2) continue; \
45 op_scale1(2); \
46 op_scale1(3); \
47 if(W==4) continue; \
48 op_scale1(4); \
49 op_scale1(5); \
50 op_scale1(6); \
51 op_scale1(7); \
52 if(W==8) continue; \
53 op_scale1(8); \
54 op_scale1(9); \
55 op_scale1(10); \
56 op_scale1(11); \
57 op_scale1(12); \
58 op_scale1(13); \
59 op_scale1(14); \
60 op_scale1(15); \
61 } \
62 } \
63 static void FUNCC(biweight_h264_pixels ## W)(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride, int height, \
64 int log2_denom, int weightd, int weights, int offset) \
65 { \
66 int y; \
67 pixel *dst = (pixel*)_dst; \
68 pixel *src = (pixel*)_src; \
69 stride >>= sizeof(pixel)-1; \
70 offset = (unsigned)offset << (BIT_DEPTH-8); \
71 offset = (unsigned)((offset + 1) | 1) << log2_denom; \
72 for (y = 0; y < height; y++, dst += stride, src += stride) { \
73 op_scale2(0); \
74 op_scale2(1); \
75 if(W==2) continue; \
76 op_scale2(2); \
77 op_scale2(3); \
78 if(W==4) continue; \
79 op_scale2(4); \
80 op_scale2(5); \
81 op_scale2(6); \
82 op_scale2(7); \
83 if(W==8) continue; \
84 op_scale2(8); \
85 op_scale2(9); \
86 op_scale2(10); \
87 op_scale2(11); \
88 op_scale2(12); \
89 op_scale2(13); \
90 op_scale2(14); \
91 op_scale2(15); \
92 } \
93 }
94
95
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 27771454 H264_WEIGHT(16)
96
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 16679572 H264_WEIGHT(8)
97
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 9074776 H264_WEIGHT(4)
98
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 4005176 H264_WEIGHT(2)
99
100 #undef op_scale1
101 #undef op_scale2
102 #undef H264_WEIGHT
103
104 75396082 static av_always_inline av_flatten void FUNCC(h264_loop_filter_luma)(uint8_t *p_pix, ptrdiff_t xstride, ptrdiff_t ystride, int inner_iters, int alpha, int beta, int8_t *tc0)
105 {
106 75396082 pixel *pix = (pixel*)p_pix;
107 int i, d;
108 75396082 xstride >>= sizeof(pixel)-1;
109 75396082 ystride >>= sizeof(pixel)-1;
110 75396082 alpha <<= BIT_DEPTH - 8;
111 75396082 beta <<= BIT_DEPTH - 8;
112
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 376980410 for( i = 0; i < 4; i++ ) {
113 301584328 const int tc_orig = tc0[i] * (1 << (BIT_DEPTH - 8));
114
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 301584328 if( tc_orig < 0 ) {
115 50624672 pix += inner_iters*ystride;
116 50624672 continue;
117 }
118
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 1249988984 for( d = 0; d < inner_iters; d++ ) {
119 999029328 const int p0 = pix[-1*xstride];
120 999029328 const int p1 = pix[-2*xstride];
121 999029328 const int p2 = pix[-3*xstride];
122 999029328 const int q0 = pix[0];
123 999029328 const int q1 = pix[1*xstride];
124 999029328 const int q2 = pix[2*xstride];
125
126
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 999029328 if( FFABS( p0 - q0 ) < alpha &&
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 856497180 FFABS( p1 - p0 ) < beta &&
128
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 644040656 FFABS( q1 - q0 ) < beta ) {
129
130 539223222 int tc = tc_orig;
131 int i_delta;
132
133
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 539223222 if( FFABS( p2 - p0 ) < beta ) {
134
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 457033262 if(tc_orig)
135 426873718 pix[-2*xstride] = p1 + av_clip( (( p2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - p1, -tc_orig, tc_orig );
136 457033262 tc++;
137 }
138
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 539223222 if( FFABS( q2 - q0 ) < beta ) {
139
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 454693342 if(tc_orig)
140 424590826 pix[ xstride] = q1 + av_clip( (( q2 + ( ( p0 + q0 + 1 ) >> 1 ) ) >> 1) - q1, -tc_orig, tc_orig );
141 454693342 tc++;
142 }
143
144 539223222 i_delta = av_clip( (((q0 - p0 ) * 4) + (p1 - q1) + 4) >> 3, -tc, tc );
145 539223222 pix[-xstride] = av_clip_pixel( p0 + i_delta ); /* p0' */
146 539223222 pix[0] = av_clip_pixel( q0 - i_delta ); /* q0' */
147 }
148 999029328 pix += ystride;
149 }
150 }
151 75396082 }
152 38261246 static void FUNCC(h264_v_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
153 {
154 38261246 FUNCC(h264_loop_filter_luma)(pix, stride, sizeof(pixel), 4, alpha, beta, tc0);
155 38261246 }
156 36533674 static void FUNCC(h264_h_loop_filter_luma)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
157 {
158 36533674 FUNCC(h264_loop_filter_luma)(pix, sizeof(pixel), stride, 4, alpha, beta, tc0);
159 36533674 }
160 601162 static void FUNCC(h264_h_loop_filter_luma_mbaff)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
161 {
162 601162 FUNCC(h264_loop_filter_luma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0);
163 601162 }
164
165 11276096 static av_always_inline av_flatten void FUNCC(h264_loop_filter_luma_intra)(uint8_t *p_pix, ptrdiff_t xstride, ptrdiff_t ystride, int inner_iters, int alpha, int beta)
166 {
167 11276096 pixel *pix = (pixel*)p_pix;
168 int d;
169 11276096 xstride >>= sizeof(pixel)-1;
170 11276096 ystride >>= sizeof(pixel)-1;
171 11276096 alpha <<= BIT_DEPTH - 8;
172 11276096 beta <<= BIT_DEPTH - 8;
173
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 185680016 for( d = 0; d < 4 * inner_iters; d++ ) {
174 174403920 const int p2 = pix[-3*xstride];
175 174403920 const int p1 = pix[-2*xstride];
176 174403920 const int p0 = pix[-1*xstride];
177
178 174403920 const int q0 = pix[ 0*xstride];
179 174403920 const int q1 = pix[ 1*xstride];
180 174403920 const int q2 = pix[ 2*xstride];
181
182
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 174403920 if( FFABS( p0 - q0 ) < alpha &&
183
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 153396024 FFABS( p1 - p0 ) < beta &&
184
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 122980262 FFABS( q1 - q0 ) < beta ) {
185
186
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 105916446 if(FFABS( p0 - q0 ) < (( alpha >> 2 ) + 2 )){
187
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 88009196 if( FFABS( p2 - p0 ) < beta)
188 {
189 79240476 const int p3 = pix[-4*xstride];
190 /* p0', p1', p2' */
191 79240476 pix[-1*xstride] = ( p2 + 2*p1 + 2*p0 + 2*q0 + q1 + 4 ) >> 3;
192 79240476 pix[-2*xstride] = ( p2 + p1 + p0 + q0 + 2 ) >> 2;
193 79240476 pix[-3*xstride] = ( 2*p3 + 3*p2 + p1 + p0 + q0 + 4 ) >> 3;
194 } else {
195 /* p0' */
196 8768720 pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
197 }
198
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 88009196 if( FFABS( q2 - q0 ) < beta)
199 {
200 78781654 const int q3 = pix[3*xstride];
201 /* q0', q1', q2' */
202 78781654 pix[0*xstride] = ( p1 + 2*p0 + 2*q0 + 2*q1 + q2 + 4 ) >> 3;
203 78781654 pix[1*xstride] = ( p0 + q0 + q1 + q2 + 2 ) >> 2;
204 78781654 pix[2*xstride] = ( 2*q3 + 3*q2 + q1 + q0 + p0 + 4 ) >> 3;
205 } else {
206 /* q0' */
207 9227542 pix[0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
208 }
209 }else{
210 /* p0', q0' */
211 17907250 pix[-1*xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2;
212 17907250 pix[ 0*xstride] = ( 2*q1 + q0 + p1 + 2 ) >> 2;
213 }
214 }
215 174403920 pix += ystride;
216 }
217 11276096 }
218 4658386 static void FUNCC(h264_v_loop_filter_luma_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
219 {
220 4658386 FUNCC(h264_loop_filter_luma_intra)(pix, stride, sizeof(pixel), 4, alpha, beta);
221 4658386 }
222 5866008 static void FUNCC(h264_h_loop_filter_luma_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
223 {
224 5866008 FUNCC(h264_loop_filter_luma_intra)(pix, sizeof(pixel), stride, 4, alpha, beta);
225 5866008 }
226 751702 static void FUNCC(h264_h_loop_filter_luma_mbaff_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
227 {
228 751702 FUNCC(h264_loop_filter_luma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta);
229 751702 }
230
231 89574918 static av_always_inline av_flatten void FUNCC(h264_loop_filter_chroma)(uint8_t *p_pix, ptrdiff_t xstride, ptrdiff_t ystride, int inner_iters, int alpha, int beta, int8_t *tc0)
232 {
233 89574918 pixel *pix = (pixel*)p_pix;
234 int i, d;
235 89574918 alpha <<= BIT_DEPTH - 8;
236 89574918 beta <<= BIT_DEPTH - 8;
237 89574918 xstride >>= sizeof(pixel)-1;
238 89574918 ystride >>= sizeof(pixel)-1;
239
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 447874590 for( i = 0; i < 4; i++ ) {
240 358299672 const int tc = ((tc0[i] - 1U) << (BIT_DEPTH - 8)) + 1;
241
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 358299672 if( tc <= 0 ) {
242 47841976 pix += inner_iters*ystride;
243 47841976 continue;
244 }
245
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 948306004 for( d = 0; d < inner_iters; d++ ) {
246 637848308 const int p0 = pix[-1*xstride];
247 637848308 const int p1 = pix[-2*xstride];
248 637848308 const int q0 = pix[0];
249 637848308 const int q1 = pix[1*xstride];
250
251
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 637848308 if( FFABS( p0 - q0 ) < alpha &&
252
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 624708614 FFABS( p1 - p0 ) < beta &&
253
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 587468202 FFABS( q1 - q0 ) < beta ) {
254
255 562557514 int delta = av_clip( ((q0 - p0) * 4 + (p1 - q1) + 4) >> 3, -tc, tc );
256
257 562557514 pix[-xstride] = av_clip_pixel( p0 + delta ); /* p0' */
258 562557514 pix[0] = av_clip_pixel( q0 - delta ); /* q0' */
259 }
260 637848308 pix += ystride;
261 }
262 }
263 89574918 }
264 48620072 static void FUNCC(h264_v_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
265 {
266 48620072 FUNCC(h264_loop_filter_chroma)(pix, stride, sizeof(pixel), 2, alpha, beta, tc0);
267 48620072 }
268 36880318 static void FUNCC(h264_h_loop_filter_chroma)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
269 {
270 36880318 FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0);
271 36880318 }
272 1300824 static void FUNCC(h264_h_loop_filter_chroma_mbaff)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
273 {
274 1300824 FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 1, alpha, beta, tc0);
275 1300824 }
276 2773272 static void FUNCC(h264_h_loop_filter_chroma422)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
277 {
278 2773272 FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 4, alpha, beta, tc0);
279 2773272 }
280 432 static void FUNCC(h264_h_loop_filter_chroma422_mbaff)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta, int8_t *tc0)
281 {
282 432 FUNCC(h264_loop_filter_chroma)(pix, sizeof(pixel), stride, 2, alpha, beta, tc0);
283 432 }
284
285 21990134 static av_always_inline av_flatten void FUNCC(h264_loop_filter_chroma_intra)(uint8_t *p_pix, ptrdiff_t xstride, ptrdiff_t ystride, int inner_iters, int alpha, int beta)
286 {
287 21990134 pixel *pix = (pixel*)p_pix;
288 int d;
289 21990134 xstride >>= sizeof(pixel)-1;
290 21990134 ystride >>= sizeof(pixel)-1;
291 21990134 alpha <<= BIT_DEPTH - 8;
292 21990134 beta <<= BIT_DEPTH - 8;
293
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 213650374 for( d = 0; d < 4 * inner_iters; d++ ) {
294 191660240 const int p0 = pix[-1*xstride];
295 191660240 const int p1 = pix[-2*xstride];
296 191660240 const int q0 = pix[0];
297 191660240 const int q1 = pix[1*xstride];
298
299
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 191660240 if( FFABS( p0 - q0 ) < alpha &&
300
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 185897022 FFABS( p1 - p0 ) < beta &&
301
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 175822060 FFABS( q1 - q0 ) < beta ) {
302
303 168729610 pix[-xstride] = ( 2*p1 + p0 + q1 + 2 ) >> 2; /* p0' */
304 168729610 pix[0] = ( 2*q1 + q0 + p1 + 2 ) >> 2; /* q0' */
305 }
306 191660240 pix += ystride;
307 }
308 21990134 }
309 9012572 static void FUNCC(h264_v_loop_filter_chroma_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
310 {
311 9012572 FUNCC(h264_loop_filter_chroma_intra)(pix, stride, sizeof(pixel), 2, alpha, beta);
312 9012572 }
313 8975262 static void FUNCC(h264_h_loop_filter_chroma_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
314 {
315 8975262 FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta);
316 8975262 }
317 1063536 static void FUNCC(h264_h_loop_filter_chroma_mbaff_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
318 {
319 1063536 FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 1, alpha, beta);
320 1063536 }
321 2499164 static void FUNCC(h264_h_loop_filter_chroma422_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
322 {
323 2499164 FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 4, alpha, beta);
324 2499164 }
325 439600 static void FUNCC(h264_h_loop_filter_chroma422_mbaff_intra)(uint8_t *pix, ptrdiff_t stride, int alpha, int beta)
326 {
327 439600 FUNCC(h264_loop_filter_chroma_intra)(pix, sizeof(pixel), stride, 2, alpha, beta);
328 439600 }
329