Libav
rv40dsp.c
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1 /*
2  * RV40 decoder motion compensation functions
3  * Copyright (c) 2008 Konstantin Shishkov
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
27 #include "libavutil/common.h"
28 #include "libavutil/intreadwrite.h"
29 #include "avcodec.h"
30 #include "h264qpel.h"
31 #include "mathops.h"
32 #include "pixels.h"
33 #include "rnd_avg.h"
34 #include "rv34dsp.h"
35 
36 #define RV40_LOWPASS(OPNAME, OP) \
37 static av_unused void OPNAME ## rv40_qpel8_h_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
38  const int h, const int C1, const int C2, const int SHIFT){\
39  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
40  int i;\
41  for(i = 0; i < h; i++)\
42  {\
43  OP(dst[0], (src[-2] + src[ 3] - 5*(src[-1]+src[2]) + src[0]*C1 + src[1]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
44  OP(dst[1], (src[-1] + src[ 4] - 5*(src[ 0]+src[3]) + src[1]*C1 + src[2]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
45  OP(dst[2], (src[ 0] + src[ 5] - 5*(src[ 1]+src[4]) + src[2]*C1 + src[3]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
46  OP(dst[3], (src[ 1] + src[ 6] - 5*(src[ 2]+src[5]) + src[3]*C1 + src[4]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
47  OP(dst[4], (src[ 2] + src[ 7] - 5*(src[ 3]+src[6]) + src[4]*C1 + src[5]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
48  OP(dst[5], (src[ 3] + src[ 8] - 5*(src[ 4]+src[7]) + src[5]*C1 + src[6]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
49  OP(dst[6], (src[ 4] + src[ 9] - 5*(src[ 5]+src[8]) + src[6]*C1 + src[7]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
50  OP(dst[7], (src[ 5] + src[10] - 5*(src[ 6]+src[9]) + src[7]*C1 + src[8]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
51  dst += dstStride;\
52  src += srcStride;\
53  }\
54 }\
55 \
56 static void OPNAME ## rv40_qpel8_v_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
57  const int w, const int C1, const int C2, const int SHIFT){\
58  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
59  int i;\
60  for(i = 0; i < w; i++)\
61  {\
62  const int srcB = src[-2*srcStride];\
63  const int srcA = src[-1*srcStride];\
64  const int src0 = src[0 *srcStride];\
65  const int src1 = src[1 *srcStride];\
66  const int src2 = src[2 *srcStride];\
67  const int src3 = src[3 *srcStride];\
68  const int src4 = src[4 *srcStride];\
69  const int src5 = src[5 *srcStride];\
70  const int src6 = src[6 *srcStride];\
71  const int src7 = src[7 *srcStride];\
72  const int src8 = src[8 *srcStride];\
73  const int src9 = src[9 *srcStride];\
74  const int src10 = src[10*srcStride];\
75  OP(dst[0*dstStride], (srcB + src3 - 5*(srcA+src2) + src0*C1 + src1*C2 + (1<<(SHIFT-1))) >> SHIFT);\
76  OP(dst[1*dstStride], (srcA + src4 - 5*(src0+src3) + src1*C1 + src2*C2 + (1<<(SHIFT-1))) >> SHIFT);\
77  OP(dst[2*dstStride], (src0 + src5 - 5*(src1+src4) + src2*C1 + src3*C2 + (1<<(SHIFT-1))) >> SHIFT);\
78  OP(dst[3*dstStride], (src1 + src6 - 5*(src2+src5) + src3*C1 + src4*C2 + (1<<(SHIFT-1))) >> SHIFT);\
79  OP(dst[4*dstStride], (src2 + src7 - 5*(src3+src6) + src4*C1 + src5*C2 + (1<<(SHIFT-1))) >> SHIFT);\
80  OP(dst[5*dstStride], (src3 + src8 - 5*(src4+src7) + src5*C1 + src6*C2 + (1<<(SHIFT-1))) >> SHIFT);\
81  OP(dst[6*dstStride], (src4 + src9 - 5*(src5+src8) + src6*C1 + src7*C2 + (1<<(SHIFT-1))) >> SHIFT);\
82  OP(dst[7*dstStride], (src5 + src10 - 5*(src6+src9) + src7*C1 + src8*C2 + (1<<(SHIFT-1))) >> SHIFT);\
83  dst++;\
84  src++;\
85  }\
86 }\
87 \
88 static void OPNAME ## rv40_qpel16_v_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
89  const int w, const int C1, const int C2, const int SHIFT){\
90  OPNAME ## rv40_qpel8_v_lowpass(dst , src , dstStride, srcStride, 8, C1, C2, SHIFT);\
91  OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
92  src += 8*srcStride;\
93  dst += 8*dstStride;\
94  OPNAME ## rv40_qpel8_v_lowpass(dst , src , dstStride, srcStride, w-8, C1, C2, SHIFT);\
95  OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, w-8, C1, C2, SHIFT);\
96 }\
97 \
98 static void OPNAME ## rv40_qpel16_h_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
99  const int h, const int C1, const int C2, const int SHIFT){\
100  OPNAME ## rv40_qpel8_h_lowpass(dst , src , dstStride, srcStride, 8, C1, C2, SHIFT);\
101  OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
102  src += 8*srcStride;\
103  dst += 8*dstStride;\
104  OPNAME ## rv40_qpel8_h_lowpass(dst , src , dstStride, srcStride, h-8, C1, C2, SHIFT);\
105  OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, h-8, C1, C2, SHIFT);\
106 }\
107 \
108 
109 #define RV40_MC(OPNAME, SIZE) \
110 static void OPNAME ## rv40_qpel ## SIZE ## _mc10_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
111 {\
112  OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
113 }\
114 \
115 static void OPNAME ## rv40_qpel ## SIZE ## _mc30_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
116 {\
117  OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
118 }\
119 \
120 static void OPNAME ## rv40_qpel ## SIZE ## _mc01_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
121 {\
122  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
123 }\
124 \
125 static void OPNAME ## rv40_qpel ## SIZE ## _mc11_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
126 {\
127  uint8_t full[SIZE*(SIZE+5)];\
128  uint8_t * const full_mid = full + SIZE*2;\
129  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
130  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
131 }\
132 \
133 static void OPNAME ## rv40_qpel ## SIZE ## _mc21_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
134 {\
135  uint8_t full[SIZE*(SIZE+5)];\
136  uint8_t * const full_mid = full + SIZE*2;\
137  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
138  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
139 }\
140 \
141 static void OPNAME ## rv40_qpel ## SIZE ## _mc31_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
142 {\
143  uint8_t full[SIZE*(SIZE+5)];\
144  uint8_t * const full_mid = full + SIZE*2;\
145  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
146  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
147 }\
148 \
149 static void OPNAME ## rv40_qpel ## SIZE ## _mc12_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
150 {\
151  uint8_t full[SIZE*(SIZE+5)];\
152  uint8_t * const full_mid = full + SIZE*2;\
153  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
154  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
155 }\
156 \
157 static void OPNAME ## rv40_qpel ## SIZE ## _mc22_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
158 {\
159  uint8_t full[SIZE*(SIZE+5)];\
160  uint8_t * const full_mid = full + SIZE*2;\
161  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
162  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
163 }\
164 \
165 static void OPNAME ## rv40_qpel ## SIZE ## _mc32_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
166 {\
167  uint8_t full[SIZE*(SIZE+5)];\
168  uint8_t * const full_mid = full + SIZE*2;\
169  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
170  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
171 }\
172 \
173 static void OPNAME ## rv40_qpel ## SIZE ## _mc03_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
174 {\
175  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
176 }\
177 \
178 static void OPNAME ## rv40_qpel ## SIZE ## _mc13_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
179 {\
180  uint8_t full[SIZE*(SIZE+5)];\
181  uint8_t * const full_mid = full + SIZE*2;\
182  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
183  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
184 }\
185 \
186 static void OPNAME ## rv40_qpel ## SIZE ## _mc23_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
187 {\
188  uint8_t full[SIZE*(SIZE+5)];\
189  uint8_t * const full_mid = full + SIZE*2;\
190  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
191  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
192 }\
193 \
194 
195 #define op_avg(a, b) a = (((a)+cm[b]+1)>>1)
196 #define op_put(a, b) a = cm[b]
197 
198 RV40_LOWPASS(put_ , op_put)
199 RV40_LOWPASS(avg_ , op_avg)
200 
201 #undef op_avg
202 #undef op_put
203 
204 RV40_MC(put_, 8)
205 RV40_MC(put_, 16)
206 RV40_MC(avg_, 8)
207 RV40_MC(avg_, 16)
208 
209 #define PIXOP2(OPNAME, OP) \
210 static inline void OPNAME ## _pixels8_xy2_8_c(uint8_t *block, \
211  const uint8_t *pixels, \
212  ptrdiff_t line_size, \
213  int h) \
214 { \
215  /* FIXME HIGH BIT DEPTH */ \
216  int j; \
217  \
218  for (j = 0; j < 2; j++) { \
219  int i; \
220  const uint32_t a = AV_RN32(pixels); \
221  const uint32_t b = AV_RN32(pixels + 1); \
222  uint32_t l0 = (a & 0x03030303UL) + \
223  (b & 0x03030303UL) + \
224  0x02020202UL; \
225  uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
226  ((b & 0xFCFCFCFCUL) >> 2); \
227  uint32_t l1, h1; \
228  \
229  pixels += line_size; \
230  for (i = 0; i < h; i += 2) { \
231  uint32_t a = AV_RN32(pixels); \
232  uint32_t b = AV_RN32(pixels + 1); \
233  l1 = (a & 0x03030303UL) + \
234  (b & 0x03030303UL); \
235  h1 = ((a & 0xFCFCFCFCUL) >> 2) + \
236  ((b & 0xFCFCFCFCUL) >> 2); \
237  OP(*((uint32_t *) block), \
238  h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
239  pixels += line_size; \
240  block += line_size; \
241  a = AV_RN32(pixels); \
242  b = AV_RN32(pixels + 1); \
243  l0 = (a & 0x03030303UL) + \
244  (b & 0x03030303UL) + \
245  0x02020202UL; \
246  h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
247  ((b & 0xFCFCFCFCUL) >> 2); \
248  OP(*((uint32_t *) block), \
249  h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
250  pixels += line_size; \
251  block += line_size; \
252  } \
253  pixels += 4 - line_size * (h + 1); \
254  block += 4 - line_size * h; \
255  } \
256 } \
257  \
258 CALL_2X_PIXELS(OPNAME ## _pixels16_xy2_8_c, \
259  OPNAME ## _pixels8_xy2_8_c, \
260  8) \
261 
262 #define op_avg(a, b) a = rnd_avg32(a, b)
263 #define op_put(a, b) a = b
264 PIXOP2(avg, op_avg)
265 PIXOP2(put, op_put)
266 #undef op_avg
267 #undef op_put
268 
269 static void put_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
270 {
271  put_pixels16_xy2_8_c(dst, src, stride, 16);
272 }
273 static void avg_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
274 {
275  avg_pixels16_xy2_8_c(dst, src, stride, 16);
276 }
277 static void put_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
278 {
279  put_pixels8_xy2_8_c(dst, src, stride, 8);
280 }
281 static void avg_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
282 {
283  avg_pixels8_xy2_8_c(dst, src, stride, 8);
284 }
285 
286 static const int rv40_bias[4][4] = {
287  { 0, 16, 32, 16 },
288  { 32, 28, 32, 28 },
289  { 0, 32, 16, 32 },
290  { 32, 28, 32, 28 }
291 };
292 
293 #define RV40_CHROMA_MC(OPNAME, OP)\
294 static void OPNAME ## rv40_chroma_mc4_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\
295  const int A = (8-x) * (8-y);\
296  const int B = ( x) * (8-y);\
297  const int C = (8-x) * ( y);\
298  const int D = ( x) * ( y);\
299  int i;\
300  int bias = rv40_bias[y>>1][x>>1];\
301  \
302  assert(x<8 && y<8 && x>=0 && y>=0);\
303 \
304  if(D){\
305  for(i = 0; i < h; i++){\
306  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
307  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
308  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
309  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
310  dst += stride;\
311  src += stride;\
312  }\
313  }else{\
314  const int E = B + C;\
315  const int step = C ? stride : 1;\
316  for(i = 0; i < h; i++){\
317  OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
318  OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
319  OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
320  OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
321  dst += stride;\
322  src += stride;\
323  }\
324  }\
325 }\
326 \
327 static void OPNAME ## rv40_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){\
328  const int A = (8-x) * (8-y);\
329  const int B = ( x) * (8-y);\
330  const int C = (8-x) * ( y);\
331  const int D = ( x) * ( y);\
332  int i;\
333  int bias = rv40_bias[y>>1][x>>1];\
334  \
335  assert(x<8 && y<8 && x>=0 && y>=0);\
336 \
337  if(D){\
338  for(i = 0; i < h; i++){\
339  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
340  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
341  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
342  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
343  OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + bias));\
344  OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + bias));\
345  OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + bias));\
346  OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + bias));\
347  dst += stride;\
348  src += stride;\
349  }\
350  }else{\
351  const int E = B + C;\
352  const int step = C ? stride : 1;\
353  for(i = 0; i < h; i++){\
354  OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
355  OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
356  OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
357  OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
358  OP(dst[4], (A*src[4] + E*src[step+4] + bias));\
359  OP(dst[5], (A*src[5] + E*src[step+5] + bias));\
360  OP(dst[6], (A*src[6] + E*src[step+6] + bias));\
361  OP(dst[7], (A*src[7] + E*src[step+7] + bias));\
362  dst += stride;\
363  src += stride;\
364  }\
365  }\
366 }
367 
368 #define op_avg(a, b) a = (((a)+((b)>>6)+1)>>1)
369 #define op_put(a, b) a = ((b)>>6)
370 
371 RV40_CHROMA_MC(put_, op_put)
372 RV40_CHROMA_MC(avg_, op_avg)
373 
374 #define RV40_WEIGHT_FUNC(size) \
375 static void rv40_weight_func_rnd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
376 {\
377  int i, j;\
378 \
379  for (j = 0; j < size; j++) {\
380  for (i = 0; i < size; i++)\
381  dst[i] = (((w2 * src1[i]) >> 9) + ((w1 * src2[i]) >> 9) + 0x10) >> 5;\
382  src1 += stride;\
383  src2 += stride;\
384  dst += stride;\
385  }\
386 }\
387 static void rv40_weight_func_nornd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
388 {\
389  int i, j;\
390 \
391  for (j = 0; j < size; j++) {\
392  for (i = 0; i < size; i++)\
393  dst[i] = (w2 * src1[i] + w1 * src2[i] + 0x10) >> 5;\
394  src1 += stride;\
395  src2 += stride;\
396  dst += stride;\
397  }\
398 }
399 
402 
406 static const uint8_t rv40_dither_l[16] = {
407  0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30,
408  0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40
409 };
410 
414 static const uint8_t rv40_dither_r[16] = {
415  0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40,
416  0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40
417 };
418 
419 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
420 
424  const int step,
425  const ptrdiff_t stride,
426  const int filter_p1,
427  const int filter_q1,
428  const int alpha,
429  const int beta,
430  const int lim_p0q0,
431  const int lim_q1,
432  const int lim_p1)
433 {
434  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
435  int i, t, u, diff;
436 
437  for (i = 0; i < 4; i++, src += stride) {
438  int diff_p1p0 = src[-2*step] - src[-1*step];
439  int diff_q1q0 = src[ 1*step] - src[ 0*step];
440  int diff_p1p2 = src[-2*step] - src[-3*step];
441  int diff_q1q2 = src[ 1*step] - src[ 2*step];
442 
443  t = src[0*step] - src[-1*step];
444  if (!t)
445  continue;
446 
447  u = (alpha * FFABS(t)) >> 7;
448  if (u > 3 - (filter_p1 && filter_q1))
449  continue;
450 
451  t <<= 2;
452  if (filter_p1 && filter_q1)
453  t += src[-2*step] - src[1*step];
454 
455  diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
456  src[-1*step] = cm[src[-1*step] + diff];
457  src[ 0*step] = cm[src[ 0*step] - diff];
458 
459  if (filter_p1 && FFABS(diff_p1p2) <= beta) {
460  t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
461  src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
462  }
463 
464  if (filter_q1 && FFABS(diff_q1q2) <= beta) {
465  t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
466  src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
467  }
468  }
469 }
470 
471 static void rv40_h_weak_loop_filter(uint8_t *src, const ptrdiff_t stride,
472  const int filter_p1, const int filter_q1,
473  const int alpha, const int beta,
474  const int lim_p0q0, const int lim_q1,
475  const int lim_p1)
476 {
477  rv40_weak_loop_filter(src, stride, 1, filter_p1, filter_q1,
478  alpha, beta, lim_p0q0, lim_q1, lim_p1);
479 }
480 
481 static void rv40_v_weak_loop_filter(uint8_t *src, const ptrdiff_t stride,
482  const int filter_p1, const int filter_q1,
483  const int alpha, const int beta,
484  const int lim_p0q0, const int lim_q1,
485  const int lim_p1)
486 {
487  rv40_weak_loop_filter(src, 1, stride, filter_p1, filter_q1,
488  alpha, beta, lim_p0q0, lim_q1, lim_p1);
489 }
490 
492  const int step,
493  const ptrdiff_t stride,
494  const int alpha,
495  const int lims,
496  const int dmode,
497  const int chroma)
498 {
499  int i;
500 
501  for(i = 0; i < 4; i++, src += stride){
502  int sflag, p0, q0, p1, q1;
503  int t = src[0*step] - src[-1*step];
504 
505  if (!t)
506  continue;
507 
508  sflag = (alpha * FFABS(t)) >> 7;
509  if (sflag > 1)
510  continue;
511 
512  p0 = (25*src[-3*step] + 26*src[-2*step] + 26*src[-1*step] +
513  26*src[ 0*step] + 25*src[ 1*step] +
514  rv40_dither_l[dmode + i]) >> 7;
515 
516  q0 = (25*src[-2*step] + 26*src[-1*step] + 26*src[ 0*step] +
517  26*src[ 1*step] + 25*src[ 2*step] +
518  rv40_dither_r[dmode + i]) >> 7;
519 
520  if (sflag) {
521  p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
522  q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
523  }
524 
525  p1 = (25*src[-4*step] + 26*src[-3*step] + 26*src[-2*step] + 26*p0 +
526  25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
527  q1 = (25*src[-1*step] + 26*q0 + 26*src[ 1*step] + 26*src[ 2*step] +
528  25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
529 
530  if (sflag) {
531  p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
532  q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
533  }
534 
535  src[-2*step] = p1;
536  src[-1*step] = p0;
537  src[ 0*step] = q0;
538  src[ 1*step] = q1;
539 
540  if(!chroma){
541  src[-3*step] = (25*src[-1*step] + 26*src[-2*step] +
542  51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
543  src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] +
544  51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
545  }
546  }
547 }
548 
549 static void rv40_h_strong_loop_filter(uint8_t *src, const ptrdiff_t stride,
550  const int alpha, const int lims,
551  const int dmode, const int chroma)
552 {
553  rv40_strong_loop_filter(src, stride, 1, alpha, lims, dmode, chroma);
554 }
555 
556 static void rv40_v_strong_loop_filter(uint8_t *src, const ptrdiff_t stride,
557  const int alpha, const int lims,
558  const int dmode, const int chroma)
559 {
560  rv40_strong_loop_filter(src, 1, stride, alpha, lims, dmode, chroma);
561 }
562 
564  int step, ptrdiff_t stride,
565  int beta, int beta2,
566  int edge,
567  int *p1, int *q1)
568 {
569  int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
570  int strong0 = 0, strong1 = 0;
571  uint8_t *ptr;
572  int i;
573 
574  for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
575  sum_p1p0 += ptr[-2*step] - ptr[-1*step];
576  sum_q1q0 += ptr[ 1*step] - ptr[ 0*step];
577  }
578 
579  *p1 = FFABS(sum_p1p0) < (beta << 2);
580  *q1 = FFABS(sum_q1q0) < (beta << 2);
581 
582  if(!*p1 && !*q1)
583  return 0;
584 
585  if (!edge)
586  return 0;
587 
588  for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
589  sum_p1p2 += ptr[-2*step] - ptr[-3*step];
590  sum_q1q2 += ptr[ 1*step] - ptr[ 2*step];
591  }
592 
593  strong0 = *p1 && (FFABS(sum_p1p2) < beta2);
594  strong1 = *q1 && (FFABS(sum_q1q2) < beta2);
595 
596  return strong0 && strong1;
597 }
598 
599 static int rv40_h_loop_filter_strength(uint8_t *src, ptrdiff_t stride,
600  int beta, int beta2, int edge,
601  int *p1, int *q1)
602 {
603  return rv40_loop_filter_strength(src, stride, 1, beta, beta2, edge, p1, q1);
604 }
605 
606 static int rv40_v_loop_filter_strength(uint8_t *src, ptrdiff_t stride,
607  int beta, int beta2, int edge,
608  int *p1, int *q1)
609 {
610  return rv40_loop_filter_strength(src, 1, stride, beta, beta2, edge, p1, q1);
611 }
612 
614 {
615  H264QpelContext qpel;
616 
617  ff_rv34dsp_init(c);
618  ff_h264qpel_init(&qpel, 8);
619 
620  c->put_pixels_tab[0][ 0] = qpel.put_h264_qpel_pixels_tab[0][0];
621  c->put_pixels_tab[0][ 1] = put_rv40_qpel16_mc10_c;
622  c->put_pixels_tab[0][ 2] = qpel.put_h264_qpel_pixels_tab[0][2];
623  c->put_pixels_tab[0][ 3] = put_rv40_qpel16_mc30_c;
624  c->put_pixels_tab[0][ 4] = put_rv40_qpel16_mc01_c;
625  c->put_pixels_tab[0][ 5] = put_rv40_qpel16_mc11_c;
626  c->put_pixels_tab[0][ 6] = put_rv40_qpel16_mc21_c;
627  c->put_pixels_tab[0][ 7] = put_rv40_qpel16_mc31_c;
628  c->put_pixels_tab[0][ 8] = qpel.put_h264_qpel_pixels_tab[0][8];
629  c->put_pixels_tab[0][ 9] = put_rv40_qpel16_mc12_c;
630  c->put_pixels_tab[0][10] = put_rv40_qpel16_mc22_c;
631  c->put_pixels_tab[0][11] = put_rv40_qpel16_mc32_c;
632  c->put_pixels_tab[0][12] = put_rv40_qpel16_mc03_c;
633  c->put_pixels_tab[0][13] = put_rv40_qpel16_mc13_c;
634  c->put_pixels_tab[0][14] = put_rv40_qpel16_mc23_c;
636  c->avg_pixels_tab[0][ 0] = qpel.avg_h264_qpel_pixels_tab[0][0];
637  c->avg_pixels_tab[0][ 1] = avg_rv40_qpel16_mc10_c;
638  c->avg_pixels_tab[0][ 2] = qpel.avg_h264_qpel_pixels_tab[0][2];
639  c->avg_pixels_tab[0][ 3] = avg_rv40_qpel16_mc30_c;
640  c->avg_pixels_tab[0][ 4] = avg_rv40_qpel16_mc01_c;
641  c->avg_pixels_tab[0][ 5] = avg_rv40_qpel16_mc11_c;
642  c->avg_pixels_tab[0][ 6] = avg_rv40_qpel16_mc21_c;
643  c->avg_pixels_tab[0][ 7] = avg_rv40_qpel16_mc31_c;
644  c->avg_pixels_tab[0][ 8] = qpel.avg_h264_qpel_pixels_tab[0][8];
645  c->avg_pixels_tab[0][ 9] = avg_rv40_qpel16_mc12_c;
646  c->avg_pixels_tab[0][10] = avg_rv40_qpel16_mc22_c;
647  c->avg_pixels_tab[0][11] = avg_rv40_qpel16_mc32_c;
648  c->avg_pixels_tab[0][12] = avg_rv40_qpel16_mc03_c;
649  c->avg_pixels_tab[0][13] = avg_rv40_qpel16_mc13_c;
650  c->avg_pixels_tab[0][14] = avg_rv40_qpel16_mc23_c;
652  c->put_pixels_tab[1][ 0] = qpel.put_h264_qpel_pixels_tab[1][0];
653  c->put_pixels_tab[1][ 1] = put_rv40_qpel8_mc10_c;
654  c->put_pixels_tab[1][ 2] = qpel.put_h264_qpel_pixels_tab[1][2];
655  c->put_pixels_tab[1][ 3] = put_rv40_qpel8_mc30_c;
656  c->put_pixels_tab[1][ 4] = put_rv40_qpel8_mc01_c;
657  c->put_pixels_tab[1][ 5] = put_rv40_qpel8_mc11_c;
658  c->put_pixels_tab[1][ 6] = put_rv40_qpel8_mc21_c;
659  c->put_pixels_tab[1][ 7] = put_rv40_qpel8_mc31_c;
660  c->put_pixels_tab[1][ 8] = qpel.put_h264_qpel_pixels_tab[1][8];
661  c->put_pixels_tab[1][ 9] = put_rv40_qpel8_mc12_c;
662  c->put_pixels_tab[1][10] = put_rv40_qpel8_mc22_c;
663  c->put_pixels_tab[1][11] = put_rv40_qpel8_mc32_c;
664  c->put_pixels_tab[1][12] = put_rv40_qpel8_mc03_c;
665  c->put_pixels_tab[1][13] = put_rv40_qpel8_mc13_c;
666  c->put_pixels_tab[1][14] = put_rv40_qpel8_mc23_c;
668  c->avg_pixels_tab[1][ 0] = qpel.avg_h264_qpel_pixels_tab[1][0];
669  c->avg_pixels_tab[1][ 1] = avg_rv40_qpel8_mc10_c;
670  c->avg_pixels_tab[1][ 2] = qpel.avg_h264_qpel_pixels_tab[1][2];
671  c->avg_pixels_tab[1][ 3] = avg_rv40_qpel8_mc30_c;
672  c->avg_pixels_tab[1][ 4] = avg_rv40_qpel8_mc01_c;
673  c->avg_pixels_tab[1][ 5] = avg_rv40_qpel8_mc11_c;
674  c->avg_pixels_tab[1][ 6] = avg_rv40_qpel8_mc21_c;
675  c->avg_pixels_tab[1][ 7] = avg_rv40_qpel8_mc31_c;
676  c->avg_pixels_tab[1][ 8] = qpel.avg_h264_qpel_pixels_tab[1][8];
677  c->avg_pixels_tab[1][ 9] = avg_rv40_qpel8_mc12_c;
678  c->avg_pixels_tab[1][10] = avg_rv40_qpel8_mc22_c;
679  c->avg_pixels_tab[1][11] = avg_rv40_qpel8_mc32_c;
680  c->avg_pixels_tab[1][12] = avg_rv40_qpel8_mc03_c;
681  c->avg_pixels_tab[1][13] = avg_rv40_qpel8_mc13_c;
682  c->avg_pixels_tab[1][14] = avg_rv40_qpel8_mc23_c;
684 
685  c->put_chroma_pixels_tab[0] = put_rv40_chroma_mc8_c;
686  c->put_chroma_pixels_tab[1] = put_rv40_chroma_mc4_c;
687  c->avg_chroma_pixels_tab[0] = avg_rv40_chroma_mc8_c;
688  c->avg_chroma_pixels_tab[1] = avg_rv40_chroma_mc4_c;
689 
690  c->rv40_weight_pixels_tab[0][0] = rv40_weight_func_rnd_16;
691  c->rv40_weight_pixels_tab[0][1] = rv40_weight_func_rnd_8;
692  c->rv40_weight_pixels_tab[1][0] = rv40_weight_func_nornd_16;
693  c->rv40_weight_pixels_tab[1][1] = rv40_weight_func_nornd_8;
694 
701 
702  if (ARCH_AARCH64)
704  if (ARCH_ARM)
706  if (ARCH_X86)
708 }
qpel_mc_func put_pixels_tab[4][16]
Definition: rv34dsp.h:58
#define ARCH_ARM
Definition: config.h:14
static void rv40_h_weak_loop_filter(uint8_t *src, const ptrdiff_t stride, const int filter_p1, const int filter_q1, const int alpha, const int beta, const int lim_p0q0, const int lim_q1, const int lim_p1)
Definition: rv40dsp.c:471
static void rv40_h_strong_loop_filter(uint8_t *src, const ptrdiff_t stride, const int alpha, const int lims, const int dmode, const int chroma)
Definition: rv40dsp.c:549
#define av_always_inline
Definition: attributes.h:40
rv40_loop_filter_strength_func rv40_loop_filter_strength[2]
Definition: rv34dsp.h:74
av_cold void ff_rv40dsp_init_arm(RV34DSPContext *c)
#define ARCH_X86
Definition: config.h:33
#define MAX_NEG_CROP
Definition: mathops.h:30
int stride
Definition: mace.c:144
static av_always_inline void rv40_strong_loop_filter(uint8_t *src, const int step, const ptrdiff_t stride, const int alpha, const int lims, const int dmode, const int chroma)
Definition: rv40dsp.c:491
av_cold void ff_h264qpel_init(H264QpelContext *c, int bit_depth)
Definition: h264qpel.c:37
#define ARCH_AARCH64
Definition: config.h:12
uint8_t
#define RV40_LOWPASS(OPNAME, OP)
Definition: rv40dsp.c:36
static void put_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:277
rv40_weak_loop_filter_func rv40_weak_loop_filter[2]
Definition: rv34dsp.h:72
static void avg_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:273
rv40_weight_func rv40_weight_pixels_tab[2][2]
Biweight functions, first dimension is transform size (16/8), second is whether the weight is prescal...
Definition: rv34dsp.h:67
av_cold void ff_rv40dsp_init_aarch64(RV34DSPContext *c)
av_cold void ff_rv34dsp_init(RV34DSPContext *c)
Definition: rv34dsp.c:131
static av_always_inline int rv40_loop_filter_strength(uint8_t *src, int step, ptrdiff_t stride, int beta, int beta2, int edge, int *p1, int *q1)
Definition: rv40dsp.c:563
qpel_mc_func avg_h264_qpel_pixels_tab[4][16]
Definition: h264qpel.h:29
#define cm
Definition: dvbsubdec.c:34
static void rv40_v_strong_loop_filter(uint8_t *src, const ptrdiff_t stride, const int alpha, const int lims, const int dmode, const int chroma)
Definition: rv40dsp.c:556
qpel_mc_func avg_pixels_tab[4][16]
Definition: rv34dsp.h:59
RV30/40 decoder motion compensation functions.
av_cold void ff_rv40dsp_init(RV34DSPContext *c)
Definition: rv40dsp.c:613
#define RV40_MC(OPNAME, SIZE)
Definition: rv40dsp.c:109
static av_always_inline void rv40_weak_loop_filter(uint8_t *src, const int step, const ptrdiff_t stride, const int filter_p1, const int filter_q1, const int alpha, const int beta, const int lim_p0q0, const int lim_q1, const int lim_p1)
weaker deblocking very similar to the one described in 4.4.2 of JVT-A003r1
Definition: rv40dsp.c:423
Libavcodec external API header.
qpel_mc_func put_h264_qpel_pixels_tab[4][16]
Definition: h264qpel.h:28
#define op_put(a, b)
Definition: rv40dsp.c:369
static const uint8_t rv40_dither_r[16]
dither values for deblocking filter - right/bottom values
Definition: rv40dsp.c:414
static void rv40_v_weak_loop_filter(uint8_t *src, const ptrdiff_t stride, const int filter_p1, const int filter_q1, const int alpha, const int beta, const int lim_p0q0, const int lim_q1, const int lim_p1)
Definition: rv40dsp.c:481
#define op_avg(a, b)
Definition: rv40dsp.c:368
static void avg_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:281
#define av_cold
Definition: attributes.h:66
static void put_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:269
#define CLIP_SYMM(a, b)
Definition: rv40dsp.c:419
static const int rv40_bias[4][4]
Definition: rv40dsp.c:286
static int step
Definition: avplay.c:247
#define RV40_WEIGHT_FUNC(size)
Definition: rv40dsp.c:374
void ff_rv40dsp_init_x86(RV34DSPContext *c)
Definition: rv40dsp_init.c:214
static const uint8_t rv40_dither_l[16]
dither values for deblocking filter - left/top values
Definition: rv40dsp.c:406
static int rv40_h_loop_filter_strength(uint8_t *src, ptrdiff_t stride, int beta, int beta2, int edge, int *p1, int *q1)
Definition: rv40dsp.c:599
rv40_strong_loop_filter_func rv40_strong_loop_filter[2]
Definition: rv34dsp.h:73
#define ff_crop_tab
static int rv40_v_loop_filter_strength(uint8_t *src, ptrdiff_t stride, int beta, int beta2, int edge, int *p1, int *q1)
Definition: rv40dsp.c:606
#define PIXOP2(OPNAME, OP)
Definition: rv40dsp.c:209
h264_chroma_mc_func avg_chroma_pixels_tab[3]
Definition: rv34dsp.h:61
#define FFABS(a)
Definition: common.h:52
h264_chroma_mc_func put_chroma_pixels_tab[3]
Definition: rv34dsp.h:60
#define RV40_CHROMA_MC(OPNAME, OP)
Definition: rv40dsp.c:293