FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/tests/checkasm/h264dsp.c
Date: 2024-05-03 05:27:13
Exec Total Coverage
Lines: 174 176 98.9%
Functions: 11 11 100.0%
Branches: 243 391 62.1%
Line Branch Exec Source
1 /*
2 * Copyright (c) 2016 Martin Storsjo
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License along
17 * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20
21 #include <string.h>
22 #include "checkasm.h"
23 #include "libavcodec/h264dsp.h"
24 #include "libavcodec/h264data.h"
25 #include "libavcodec/h264_parse.h"
26 #include "libavutil/common.h"
27 #include "libavutil/intreadwrite.h"
28 #include "libavutil/mem_internal.h"
29
30 static const uint32_t pixel_mask[3] = { 0xffffffff, 0x01ff01ff, 0x03ff03ff };
31 static const uint32_t pixel_mask_lf[3] = { 0xff0fff0f, 0x01ff000f, 0x03ff000f };
32
33 #define SIZEOF_PIXEL ((bit_depth + 7) / 8)
34 #define SIZEOF_COEF (2 * ((bit_depth + 7) / 8))
35 #define PIXEL_STRIDE 16
36
37 #define randomize_buffers() \
38 do { \
39 int x, y; \
40 uint32_t mask = pixel_mask[bit_depth - 8]; \
41 for (y = 0; y < sz; y++) { \
42 for (x = 0; x < PIXEL_STRIDE; x += 4) { \
43 AV_WN32A(src + y * PIXEL_STRIDE + x, rnd() & mask); \
44 AV_WN32A(dst + y * PIXEL_STRIDE + x, rnd() & mask); \
45 } \
46 for (x = 0; x < sz; x++) { \
47 if (bit_depth == 8) { \
48 coef[y * sz + x] = src[y * PIXEL_STRIDE + x] - \
49 dst[y * PIXEL_STRIDE + x]; \
50 } else { \
51 ((int32_t *)coef)[y * sz + x] = \
52 ((uint16_t *)src)[y * (PIXEL_STRIDE/2) + x] - \
53 ((uint16_t *)dst)[y * (PIXEL_STRIDE/2) + x]; \
54 } \
55 } \
56 } \
57 } while (0)
58
59 #define dct4x4_impl(size, dctcoef) \
60 static void dct4x4_##size(dctcoef *coef) \
61 { \
62 int i, y, x; \
63 dctcoef tmp[16]; \
64 for (i = 0; i < 4; i++) { \
65 const int z0 = coef[i*4 + 0] + coef[i*4 + 3]; \
66 const int z1 = coef[i*4 + 1] + coef[i*4 + 2]; \
67 const int z2 = coef[i*4 + 0] - coef[i*4 + 3]; \
68 const int z3 = coef[i*4 + 1] - coef[i*4 + 2]; \
69 tmp[i + 4*0] = z0 + z1; \
70 tmp[i + 4*1] = 2*z2 + z3; \
71 tmp[i + 4*2] = z0 - z1; \
72 tmp[i + 4*3] = z2 - 2*z3; \
73 } \
74 for (i = 0; i < 4; i++) { \
75 const int z0 = tmp[i*4 + 0] + tmp[i*4 + 3]; \
76 const int z1 = tmp[i*4 + 1] + tmp[i*4 + 2]; \
77 const int z2 = tmp[i*4 + 0] - tmp[i*4 + 3]; \
78 const int z3 = tmp[i*4 + 1] - tmp[i*4 + 2]; \
79 coef[i*4 + 0] = z0 + z1; \
80 coef[i*4 + 1] = 2*z2 + z3; \
81 coef[i*4 + 2] = z0 - z1; \
82 coef[i*4 + 3] = z2 - 2*z3; \
83 } \
84 for (y = 0; y < 4; y++) { \
85 for (x = 0; x < 4; x++) { \
86 static const int scale[] = { 13107 * 10, 8066 * 13, 5243 * 16 }; \
87 const int idx = (y & 1) + (x & 1); \
88 coef[y*4 + x] = (coef[y*4 + x] * scale[idx] + (1 << 14)) >> 15; \
89 } \
90 } \
91 }
92
93 #define DCT8_1D(src, srcstride, dst, dststride) do { \
94 const int a0 = (src)[srcstride * 0] + (src)[srcstride * 7]; \
95 const int a1 = (src)[srcstride * 0] - (src)[srcstride * 7]; \
96 const int a2 = (src)[srcstride * 1] + (src)[srcstride * 6]; \
97 const int a3 = (src)[srcstride * 1] - (src)[srcstride * 6]; \
98 const int a4 = (src)[srcstride * 2] + (src)[srcstride * 5]; \
99 const int a5 = (src)[srcstride * 2] - (src)[srcstride * 5]; \
100 const int a6 = (src)[srcstride * 3] + (src)[srcstride * 4]; \
101 const int a7 = (src)[srcstride * 3] - (src)[srcstride * 4]; \
102 const int b0 = a0 + a6; \
103 const int b1 = a2 + a4; \
104 const int b2 = a0 - a6; \
105 const int b3 = a2 - a4; \
106 const int b4 = a3 + a5 + (a1 + (a1 >> 1)); \
107 const int b5 = a1 - a7 - (a5 + (a5 >> 1)); \
108 const int b6 = a1 + a7 - (a3 + (a3 >> 1)); \
109 const int b7 = a3 - a5 + (a7 + (a7 >> 1)); \
110 (dst)[dststride * 0] = b0 + b1; \
111 (dst)[dststride * 1] = b4 + (b7 >> 2); \
112 (dst)[dststride * 2] = b2 + (b3 >> 1); \
113 (dst)[dststride * 3] = b5 + (b6 >> 2); \
114 (dst)[dststride * 4] = b0 - b1; \
115 (dst)[dststride * 5] = b6 - (b5 >> 2); \
116 (dst)[dststride * 6] = (b2 >> 1) - b3; \
117 (dst)[dststride * 7] = (b4 >> 2) - b7; \
118 } while (0)
119
120 #define dct8x8_impl(size, dctcoef) \
121 static void dct8x8_##size(dctcoef *coef) \
122 { \
123 int i, x, y; \
124 dctcoef tmp[64]; \
125 for (i = 0; i < 8; i++) \
126 DCT8_1D(coef + i, 8, tmp + i, 8); \
127 \
128 for (i = 0; i < 8; i++) \
129 DCT8_1D(tmp + 8*i, 1, coef + i, 8); \
130 \
131 for (y = 0; y < 8; y++) { \
132 for (x = 0; x < 8; x++) { \
133 static const int scale[] = { \
134 13107 * 20, 11428 * 18, 20972 * 32, \
135 12222 * 19, 16777 * 25, 15481 * 24, \
136 }; \
137 static const int idxmap[] = { \
138 0, 3, 4, 3, \
139 3, 1, 5, 1, \
140 4, 5, 2, 5, \
141 3, 1, 5, 1, \
142 }; \
143 const int idx = idxmap[(y & 3) * 4 + (x & 3)]; \
144 coef[y*8 + x] = ((int64_t)coef[y*8 + x] * \
145 scale[idx] + (1 << 17)) >> 18; \
146 } \
147 } \
148 }
149
150
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 12441 dct4x4_impl(16, int16_t)
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 24882 dct4x4_impl(32, int32_t)
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 5785 dct8x8_impl(16, int16_t)
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 11570 dct8x8_impl(32, int32_t)
155
156 1287 static void dct4x4(int16_t *coef, int bit_depth)
157 {
158
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 1287 if (bit_depth == 8)
159 429 dct4x4_16(coef);
160 else
161 858 dct4x4_32((int32_t *) coef);
162 1287 }
163
164 195 static void dct8x8(int16_t *coef, int bit_depth)
165 {
166
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 195 if (bit_depth == 8) {
167 65 dct8x8_16(coef);
168 } else {
169 130 dct8x8_32((int32_t *) coef);
170 }
171 195 }
172
173
174 13 static void check_idct(void)
175 {
176 13 LOCAL_ALIGNED_16(uint8_t, src, [8 * 8 * 2]);
177 13 LOCAL_ALIGNED_16(uint8_t, dst, [8 * 8 * 2]);
178 13 LOCAL_ALIGNED_16(uint8_t, dst0, [8 * 8 * 2]);
179 13 LOCAL_ALIGNED_16(uint8_t, dst1_base, [8 * 8 * 2 + 32]);
180 13 LOCAL_ALIGNED_16(int16_t, coef, [8 * 8 * 2]);
181 13 LOCAL_ALIGNED_16(int16_t, subcoef0, [8 * 8 * 2]);
182 13 LOCAL_ALIGNED_16(int16_t, subcoef1, [8 * 8 * 2]);
183 H264DSPContext h;
184 int bit_depth, sz, align, dc;
185
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 13 declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, int16_t *block, int stride);
186
187
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 52 for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
188 39 ff_h264dsp_init(&h, bit_depth, 1);
189
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 117 for (sz = 4; sz <= 8; sz += 4) {
190
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 5538 randomize_buffers();
191
192
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 78 if (sz == 4)
193 39 dct4x4(coef, bit_depth);
194 else
195 39 dct8x8(coef, bit_depth);
196
197
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 234 for (dc = 0; dc <= 1; dc++) {
198 156 void (*idct)(uint8_t *, int16_t *, int) = NULL;
199
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 156 switch ((sz << 1) | dc) {
200 39 case (4 << 1) | 0: idct = h.h264_idct_add; break;
201 39 case (4 << 1) | 1: idct = h.h264_idct_dc_add; break;
202 39 case (8 << 1) | 0: idct = h.h264_idct8_add; break;
203 39 case (8 << 1) | 1: idct = h.h264_idct8_dc_add; break;
204 }
205
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 156 if (check_func(idct, "h264_idct%d_add%s_%dbpp", sz, dc ? "_dc" : "", bit_depth)) {
206
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 82 for (align = 0; align < 16; align += sz * SIZEOF_PIXEL) {
207 56 uint8_t *dst1 = dst1_base + align;
208
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 56 if (dc) {
209 28 memset(subcoef0, 0, sz * sz * SIZEOF_COEF);
210 28 memcpy(subcoef0, coef, SIZEOF_COEF);
211 } else {
212 28 memcpy(subcoef0, coef, sz * sz * SIZEOF_COEF);
213 }
214 56 memcpy(dst0, dst, sz * PIXEL_STRIDE);
215 56 memcpy(dst1, dst, sz * PIXEL_STRIDE);
216 56 memcpy(subcoef1, subcoef0, sz * sz * SIZEOF_COEF);
217 56 call_ref(dst0, subcoef0, PIXEL_STRIDE);
218 56 call_new(dst1, subcoef1, PIXEL_STRIDE);
219
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 56 if (memcmp(dst0, dst1, sz * PIXEL_STRIDE) ||
220
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 56 memcmp(subcoef0, subcoef1, sz * sz * SIZEOF_COEF))
221 ✗ fail();
222
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 56 bench_new(dst1, subcoef1, sz * SIZEOF_PIXEL);
223 }
224 }
225 }
226 }
227 }
228 13 }
229
230 13 static void check_idct_multiple(void)
231 {
232 13 LOCAL_ALIGNED_16(uint8_t, dst_full, [16 * 16 * 2]);
233 13 LOCAL_ALIGNED_16(int16_t, coef_full, [16 * 16 * 2]);
234 13 LOCAL_ALIGNED_16(uint8_t, dst0, [16 * 16 * 2]);
235 13 LOCAL_ALIGNED_16(uint8_t, dst1, [16 * 16 * 2]);
236 13 LOCAL_ALIGNED_16(int16_t, coef0, [16 * 16 * 2]);
237 13 LOCAL_ALIGNED_16(int16_t, coef1, [16 * 16 * 2]);
238 13 LOCAL_ALIGNED_16(uint8_t, nnzc, [15 * 8]);
239 H264DSPContext h;
240 int bit_depth, i, y, func;
241
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 13 declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, const int *block_offset, int16_t *block, int stride, const uint8_t nnzc[15*8]);
242
243
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 52 for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
244 39 ff_h264dsp_init(&h, bit_depth, 1);
245
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 156 for (func = 0; func < 3; func++) {
246 117 void (*idct)(uint8_t *, const int *, int16_t *, int, const uint8_t[]) = NULL;
247 const char *name;
248 117 int sz = 4, intra = 0;
249 117 int block_offset[16] = { 0 };
250
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 117 switch (func) {
251 39 case 0:
252 39 idct = h.h264_idct_add16;
253 39 name = "h264_idct_add16";
254 39 break;
255 39 case 1:
256 39 idct = h.h264_idct_add16intra;
257 39 name = "h264_idct_add16intra";
258 39 intra = 1;
259 39 break;
260 39 case 2:
261 39 idct = h.h264_idct8_add4;
262 39 name = "h264_idct8_add4";
263 39 sz = 8;
264 39 break;
265 }
266 117 memset(nnzc, 0, 15 * 8);
267 117 memset(coef_full, 0, 16 * 16 * SIZEOF_COEF);
268
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 1521 for (i = 0; i < 16 * 16; i += sz * sz) {
269 uint8_t src[8 * 8 * 2];
270 uint8_t dst[8 * 8 * 2];
271 int16_t coef[8 * 8 * 2];
272 1404 int index = i / sz;
273 1404 int block_y = (index / 16) * sz;
274 1404 int block_x = index % 16;
275 1404 int offset = (block_y * 16 + block_x) * SIZEOF_PIXEL;
276 1404 int nnz = rnd() % 3;
277
278
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 62556 randomize_buffers();
279
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 1404 if (sz == 4)
280 1248 dct4x4(coef, bit_depth);
281 else
282 156 dct8x8(coef, bit_depth);
283
284
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 7644 for (y = 0; y < sz; y++)
285 6240 memcpy(&dst_full[offset + y * 16 * SIZEOF_PIXEL],
286 6240 &dst[PIXEL_STRIDE * y], sz * SIZEOF_PIXEL);
287
288
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 1404 if (nnz > 1)
289 432 nnz = sz * sz;
290 1404 memcpy(&coef_full[i * SIZEOF_COEF/sizeof(coef[0])],
291 1404 coef, nnz * SIZEOF_COEF);
292
293
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 1404 if (intra && nnz == 1)
294 199 nnz = 0;
295
296 1404 nnzc[scan8[i / 16]] = nnz;
297 1404 block_offset[i / 16] = offset;
298 }
299
300
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 117 if (check_func(idct, "%s_%dbpp", name, bit_depth)) {
301 18 memcpy(coef0, coef_full, 16 * 16 * SIZEOF_COEF);
302 18 memcpy(coef1, coef_full, 16 * 16 * SIZEOF_COEF);
303 18 memcpy(dst0, dst_full, 16 * 16 * SIZEOF_PIXEL);
304 18 memcpy(dst1, dst_full, 16 * 16 * SIZEOF_PIXEL);
305 18 call_ref(dst0, block_offset, coef0, 16 * SIZEOF_PIXEL, nnzc);
306 18 call_new(dst1, block_offset, coef1, 16 * SIZEOF_PIXEL, nnzc);
307
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 18 if (memcmp(dst0, dst1, 16 * 16 * SIZEOF_PIXEL) ||
308
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 18 memcmp(coef0, coef1, 16 * 16 * SIZEOF_COEF))
309 ✗ fail();
310
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 18 bench_new(dst1, block_offset, coef1, 16 * SIZEOF_PIXEL, nnzc);
311 }
312 }
313 }
314 13 }
315
316
317 13 static void check_loop_filter(void)
318 {
319 13 LOCAL_ALIGNED_16(uint8_t, dst, [32 * 16 * 2]);
320 13 LOCAL_ALIGNED_16(uint8_t, dst0, [32 * 16 * 2]);
321 13 LOCAL_ALIGNED_16(uint8_t, dst1, [32 * 16 * 2]);
322 H264DSPContext h;
323 int bit_depth;
324 int alphas[36], betas[36];
325 int8_t tc0[36][4];
326
327
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 13 declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *pix, ptrdiff_t stride,
328 int alpha, int beta, int8_t *tc0);
329
330
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 52 for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
331 int i, j, a, c;
332 39 uint32_t mask = pixel_mask_lf[bit_depth - 8];
333 39 ff_h264dsp_init(&h, bit_depth, 1);
334
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 1443 for (i = 35, a = 255, c = 250; i >= 0; i--) {
335 1404 alphas[i] = a << (bit_depth - 8);
336 1404 betas[i] = (i + 1) / 2 << (bit_depth - 8);
337 1404 tc0[i][0] = tc0[i][3] = (c + 6) / 10;
338 1404 tc0[i][1] = (c + 7) / 15;
339 1404 tc0[i][2] = (c + 9) / 20;
340 1404 a = a*9/10;
341 1404 c = c*9/10;
342 }
343
344 #define CHECK_LOOP_FILTER(name, align, idc) \
345 do { \
346 if (check_func(h.name, #name #idc "_%dbpp", bit_depth)) { \
347 for (j = 0; j < 36; j++) { \
348 intptr_t off = 8 * 32 + (j & 15) * 4 * !align; \
349 for (i = 0; i < 1024; i+=4) { \
350 AV_WN32A(dst + i, rnd() & mask); \
351 } \
352 memcpy(dst0, dst, 32 * 16 * 2); \
353 memcpy(dst1, dst, 32 * 16 * 2); \
354 \
355 call_ref(dst0 + off, 32, alphas[j], betas[j], tc0[j]); \
356 call_new(dst1 + off, 32, alphas[j], betas[j], tc0[j]); \
357 if (memcmp(dst0, dst1, 32 * 16 * SIZEOF_PIXEL)) { \
358 fprintf(stderr, #name #idc ": j:%d, alpha:%d beta:%d " \
359 "tc0:{%d,%d,%d,%d}\n", j, alphas[j], betas[j], \
360 tc0[j][0], tc0[j][1], tc0[j][2], tc0[j][3]); \
361 fail(); \
362 } \
363 bench_new(dst1, 32, alphas[j], betas[j], tc0[j]); \
364 } \
365 } \
366 } while (0)
367
368
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 64803 CHECK_LOOP_FILTER(h264_v_loop_filter_luma, 1,);
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 64803 CHECK_LOOP_FILTER(h264_h_loop_filter_luma, 0,);
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 46299 CHECK_LOOP_FILTER(h264_h_loop_filter_luma_mbaff, 0,);
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 64803 CHECK_LOOP_FILTER(h264_v_loop_filter_chroma, 1,);
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 64803 CHECK_LOOP_FILTER(h264_h_loop_filter_chroma, 0,);
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 27795 CHECK_LOOP_FILTER(h264_h_loop_filter_chroma_mbaff, 0,);
374
375 39 ff_h264dsp_init(&h, bit_depth, 2);
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 64803 CHECK_LOOP_FILTER(h264_h_loop_filter_chroma, 0, 422);
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 27795 CHECK_LOOP_FILTER(h264_h_loop_filter_chroma_mbaff, 0, 422);
378 #undef CHECK_LOOP_FILTER
379 }
380 13 }
381
382 13 static void check_loop_filter_intra(void)
383 {
384 13 LOCAL_ALIGNED_16(uint8_t, dst, [32 * 16 * 2]);
385 13 LOCAL_ALIGNED_16(uint8_t, dst0, [32 * 16 * 2]);
386 13 LOCAL_ALIGNED_16(uint8_t, dst1, [32 * 16 * 2]);
387 H264DSPContext h;
388 int bit_depth;
389 int alphas[36], betas[36];
390
391
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 13 declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *pix, ptrdiff_t stride,
392 int alpha, int beta);
393
394
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 52 for (bit_depth = 8; bit_depth <= 10; bit_depth++) {
395 int i, j, a;
396 39 uint32_t mask = pixel_mask_lf[bit_depth - 8];
397 39 ff_h264dsp_init(&h, bit_depth, 1);
398
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 1443 for (i = 35, a = 255; i >= 0; i--) {
399 1404 alphas[i] = a << (bit_depth - 8);
400 1404 betas[i] = (i + 1) / 2 << (bit_depth - 8);
401 1404 a = a*9/10;
402 }
403
404 #define CHECK_LOOP_FILTER(name, align, idc) \
405 do { \
406 if (check_func(h.name, #name #idc "_%dbpp", bit_depth)) { \
407 for (j = 0; j < 36; j++) { \
408 intptr_t off = 8 * 32 + (j & 15) * 4 * !align; \
409 for (i = 0; i < 1024; i+=4) { \
410 AV_WN32A(dst + i, rnd() & mask); \
411 } \
412 memcpy(dst0, dst, 32 * 16 * 2); \
413 memcpy(dst1, dst, 32 * 16 * 2); \
414 \
415 call_ref(dst0 + off, 32, alphas[j], betas[j]); \
416 call_new(dst1 + off, 32, alphas[j], betas[j]); \
417 if (memcmp(dst0, dst1, 32 * 16 * SIZEOF_PIXEL)) { \
418 fprintf(stderr, #name #idc ": j:%d, alpha:%d beta:%d\n", \
419 j, alphas[j], betas[j]); \
420 fail(); \
421 } \
422 bench_new(dst1, 32, alphas[j], betas[j]); \
423 } \
424 } \
425 } while (0)
426
427
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 64803 CHECK_LOOP_FILTER(h264_v_loop_filter_luma_intra, 1,);
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433
434 39 ff_h264dsp_init(&h, bit_depth, 2);
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 27795 CHECK_LOOP_FILTER(h264_h_loop_filter_chroma_mbaff_intra, 0, 422);
437 #undef CHECK_LOOP_FILTER
438 }
439 13 }
440
441 13 void checkasm_check_h264dsp(void)
442 {
443 13 check_idct();
444 13 check_idct_multiple();
445 13 report("idct");
446
447 13 check_loop_filter();
448 13 report("loop_filter");
449
450 13 check_loop_filter_intra();
451 13 report("loop_filter_intra");
452 13 }
453