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 "avcodec.h"
28 #include "h264qpel.h"
29 #include "rv34dsp.h"
30 #include "libavutil/common.h"
31 
32 #define RV40_LOWPASS(OPNAME, OP) \
33 static av_unused void OPNAME ## rv40_qpel8_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
34  const int h, const int C1, const int C2, const int SHIFT){\
35  const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
36  int i;\
37  for(i = 0; i < h; i++)\
38  {\
39  OP(dst[0], (src[-2] + src[ 3] - 5*(src[-1]+src[2]) + src[0]*C1 + src[1]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
40  OP(dst[1], (src[-1] + src[ 4] - 5*(src[ 0]+src[3]) + src[1]*C1 + src[2]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
41  OP(dst[2], (src[ 0] + src[ 5] - 5*(src[ 1]+src[4]) + src[2]*C1 + src[3]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
42  OP(dst[3], (src[ 1] + src[ 6] - 5*(src[ 2]+src[5]) + src[3]*C1 + src[4]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
43  OP(dst[4], (src[ 2] + src[ 7] - 5*(src[ 3]+src[6]) + src[4]*C1 + src[5]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
44  OP(dst[5], (src[ 3] + src[ 8] - 5*(src[ 4]+src[7]) + src[5]*C1 + src[6]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
45  OP(dst[6], (src[ 4] + src[ 9] - 5*(src[ 5]+src[8]) + src[6]*C1 + src[7]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
46  OP(dst[7], (src[ 5] + src[10] - 5*(src[ 6]+src[9]) + src[7]*C1 + src[8]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
47  dst += dstStride;\
48  src += srcStride;\
49  }\
50 }\
51 \
52 static void OPNAME ## rv40_qpel8_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
53  const int w, const int C1, const int C2, const int SHIFT){\
54  const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;\
55  int i;\
56  for(i = 0; i < w; i++)\
57  {\
58  const int srcB = src[-2*srcStride];\
59  const int srcA = src[-1*srcStride];\
60  const int src0 = src[0 *srcStride];\
61  const int src1 = src[1 *srcStride];\
62  const int src2 = src[2 *srcStride];\
63  const int src3 = src[3 *srcStride];\
64  const int src4 = src[4 *srcStride];\
65  const int src5 = src[5 *srcStride];\
66  const int src6 = src[6 *srcStride];\
67  const int src7 = src[7 *srcStride];\
68  const int src8 = src[8 *srcStride];\
69  const int src9 = src[9 *srcStride];\
70  const int src10 = src[10*srcStride];\
71  OP(dst[0*dstStride], (srcB + src3 - 5*(srcA+src2) + src0*C1 + src1*C2 + (1<<(SHIFT-1))) >> SHIFT);\
72  OP(dst[1*dstStride], (srcA + src4 - 5*(src0+src3) + src1*C1 + src2*C2 + (1<<(SHIFT-1))) >> SHIFT);\
73  OP(dst[2*dstStride], (src0 + src5 - 5*(src1+src4) + src2*C1 + src3*C2 + (1<<(SHIFT-1))) >> SHIFT);\
74  OP(dst[3*dstStride], (src1 + src6 - 5*(src2+src5) + src3*C1 + src4*C2 + (1<<(SHIFT-1))) >> SHIFT);\
75  OP(dst[4*dstStride], (src2 + src7 - 5*(src3+src6) + src4*C1 + src5*C2 + (1<<(SHIFT-1))) >> SHIFT);\
76  OP(dst[5*dstStride], (src3 + src8 - 5*(src4+src7) + src5*C1 + src6*C2 + (1<<(SHIFT-1))) >> SHIFT);\
77  OP(dst[6*dstStride], (src4 + src9 - 5*(src5+src8) + src6*C1 + src7*C2 + (1<<(SHIFT-1))) >> SHIFT);\
78  OP(dst[7*dstStride], (src5 + src10 - 5*(src6+src9) + src7*C1 + src8*C2 + (1<<(SHIFT-1))) >> SHIFT);\
79  dst++;\
80  src++;\
81  }\
82 }\
83 \
84 static void OPNAME ## rv40_qpel16_v_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
85  const int w, const int C1, const int C2, const int SHIFT){\
86  OPNAME ## rv40_qpel8_v_lowpass(dst , src , dstStride, srcStride, 8, C1, C2, SHIFT);\
87  OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
88  src += 8*srcStride;\
89  dst += 8*dstStride;\
90  OPNAME ## rv40_qpel8_v_lowpass(dst , src , dstStride, srcStride, w-8, C1, C2, SHIFT);\
91  OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, w-8, C1, C2, SHIFT);\
92 }\
93 \
94 static void OPNAME ## rv40_qpel16_h_lowpass(uint8_t *dst, uint8_t *src, int dstStride, int srcStride,\
95  const int h, const int C1, const int C2, const int SHIFT){\
96  OPNAME ## rv40_qpel8_h_lowpass(dst , src , dstStride, srcStride, 8, C1, C2, SHIFT);\
97  OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
98  src += 8*srcStride;\
99  dst += 8*dstStride;\
100  OPNAME ## rv40_qpel8_h_lowpass(dst , src , dstStride, srcStride, h-8, C1, C2, SHIFT);\
101  OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, h-8, C1, C2, SHIFT);\
102 }\
103 \
104 
105 #define RV40_MC(OPNAME, SIZE) \
106 static void OPNAME ## rv40_qpel ## SIZE ## _mc10_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
107 {\
108  OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
109 }\
110 \
111 static void OPNAME ## rv40_qpel ## SIZE ## _mc30_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
112 {\
113  OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
114 }\
115 \
116 static void OPNAME ## rv40_qpel ## SIZE ## _mc01_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
117 {\
118  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
119 }\
120 \
121 static void OPNAME ## rv40_qpel ## SIZE ## _mc11_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
122 {\
123  uint8_t full[SIZE*(SIZE+5)];\
124  uint8_t * const full_mid = full + SIZE*2;\
125  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
126  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
127 }\
128 \
129 static void OPNAME ## rv40_qpel ## SIZE ## _mc21_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
130 {\
131  uint8_t full[SIZE*(SIZE+5)];\
132  uint8_t * const full_mid = full + SIZE*2;\
133  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
134  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
135 }\
136 \
137 static void OPNAME ## rv40_qpel ## SIZE ## _mc31_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
138 {\
139  uint8_t full[SIZE*(SIZE+5)];\
140  uint8_t * const full_mid = full + SIZE*2;\
141  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
142  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
143 }\
144 \
145 static void OPNAME ## rv40_qpel ## SIZE ## _mc12_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
146 {\
147  uint8_t full[SIZE*(SIZE+5)];\
148  uint8_t * const full_mid = full + SIZE*2;\
149  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
150  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
151 }\
152 \
153 static void OPNAME ## rv40_qpel ## SIZE ## _mc22_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
154 {\
155  uint8_t full[SIZE*(SIZE+5)];\
156  uint8_t * const full_mid = full + SIZE*2;\
157  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
158  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
159 }\
160 \
161 static void OPNAME ## rv40_qpel ## SIZE ## _mc32_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
162 {\
163  uint8_t full[SIZE*(SIZE+5)];\
164  uint8_t * const full_mid = full + SIZE*2;\
165  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
166  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
167 }\
168 \
169 static void OPNAME ## rv40_qpel ## SIZE ## _mc03_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
170 {\
171  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
172 }\
173 \
174 static void OPNAME ## rv40_qpel ## SIZE ## _mc13_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
175 {\
176  uint8_t full[SIZE*(SIZE+5)];\
177  uint8_t * const full_mid = full + SIZE*2;\
178  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
179  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
180 }\
181 \
182 static void OPNAME ## rv40_qpel ## SIZE ## _mc23_c(uint8_t *dst, uint8_t *src, ptrdiff_t stride)\
183 {\
184  uint8_t full[SIZE*(SIZE+5)];\
185  uint8_t * const full_mid = full + SIZE*2;\
186  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
187  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
188 }\
189 \
190 
191 #define op_avg(a, b) a = (((a)+cm[b]+1)>>1)
192 #define op_put(a, b) a = cm[b]
193 
194 RV40_LOWPASS(put_ , op_put)
195 RV40_LOWPASS(avg_ , op_avg)
196 
197 #undef op_avg
198 #undef op_put
199 
200 RV40_MC(put_, 8)
201 RV40_MC(put_, 16)
202 RV40_MC(avg_, 8)
203 RV40_MC(avg_, 16)
204 
205 static const int rv40_bias[4][4] = {
206  { 0, 16, 32, 16 },
207  { 32, 28, 32, 28 },
208  { 0, 32, 16, 32 },
209  { 32, 28, 32, 28 }
210 };
211 
212 #define RV40_CHROMA_MC(OPNAME, OP)\
213 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){\
214  const int A = (8-x) * (8-y);\
215  const int B = ( x) * (8-y);\
216  const int C = (8-x) * ( y);\
217  const int D = ( x) * ( y);\
218  int i;\
219  int bias = rv40_bias[y>>1][x>>1];\
220  \
221  assert(x<8 && y<8 && x>=0 && y>=0);\
222 \
223  if(D){\
224  for(i = 0; i < h; i++){\
225  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
226  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
227  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
228  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
229  dst += stride;\
230  src += stride;\
231  }\
232  }else{\
233  const int E = B + C;\
234  const int step = C ? stride : 1;\
235  for(i = 0; i < h; i++){\
236  OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
237  OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
238  OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
239  OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
240  dst += stride;\
241  src += stride;\
242  }\
243  }\
244 }\
245 \
246 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){\
247  const int A = (8-x) * (8-y);\
248  const int B = ( x) * (8-y);\
249  const int C = (8-x) * ( y);\
250  const int D = ( x) * ( y);\
251  int i;\
252  int bias = rv40_bias[y>>1][x>>1];\
253  \
254  assert(x<8 && y<8 && x>=0 && y>=0);\
255 \
256  if(D){\
257  for(i = 0; i < h; i++){\
258  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
259  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
260  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
261  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
262  OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + bias));\
263  OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + bias));\
264  OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + bias));\
265  OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + bias));\
266  dst += stride;\
267  src += stride;\
268  }\
269  }else{\
270  const int E = B + C;\
271  const int step = C ? stride : 1;\
272  for(i = 0; i < h; i++){\
273  OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
274  OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
275  OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
276  OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
277  OP(dst[4], (A*src[4] + E*src[step+4] + bias));\
278  OP(dst[5], (A*src[5] + E*src[step+5] + bias));\
279  OP(dst[6], (A*src[6] + E*src[step+6] + bias));\
280  OP(dst[7], (A*src[7] + E*src[step+7] + bias));\
281  dst += stride;\
282  src += stride;\
283  }\
284  }\
285 }
286 
287 #define op_avg(a, b) a = (((a)+((b)>>6)+1)>>1)
288 #define op_put(a, b) a = ((b)>>6)
289 
290 RV40_CHROMA_MC(put_, op_put)
291 RV40_CHROMA_MC(avg_, op_avg)
292 
293 #define RV40_WEIGHT_FUNC(size) \
294 static void rv40_weight_func_rnd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
295 {\
296  int i, j;\
297 \
298  for (j = 0; j < size; j++) {\
299  for (i = 0; i < size; i++)\
300  dst[i] = (((w2 * src1[i]) >> 9) + ((w1 * src2[i]) >> 9) + 0x10) >> 5;\
301  src1 += stride;\
302  src2 += stride;\
303  dst += stride;\
304  }\
305 }\
306 static void rv40_weight_func_nornd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
307 {\
308  int i, j;\
309 \
310  for (j = 0; j < size; j++) {\
311  for (i = 0; i < size; i++)\
312  dst[i] = (w2 * src1[i] + w1 * src2[i] + 0x10) >> 5;\
313  src1 += stride;\
314  src2 += stride;\
315  dst += stride;\
316  }\
317 }
318 
321 
325 static const uint8_t rv40_dither_l[16] = {
326  0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30,
327  0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40
328 };
329 
333 static const uint8_t rv40_dither_r[16] = {
334  0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40,
335  0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40
336 };
337 
338 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
339 
343  const int step,
344  const ptrdiff_t stride,
345  const int filter_p1,
346  const int filter_q1,
347  const int alpha,
348  const int beta,
349  const int lim_p0q0,
350  const int lim_q1,
351  const int lim_p1)
352 {
353  const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
354  int i, t, u, diff;
355 
356  for (i = 0; i < 4; i++, src += stride) {
357  int diff_p1p0 = src[-2*step] - src[-1*step];
358  int diff_q1q0 = src[ 1*step] - src[ 0*step];
359  int diff_p1p2 = src[-2*step] - src[-3*step];
360  int diff_q1q2 = src[ 1*step] - src[ 2*step];
361 
362  t = src[0*step] - src[-1*step];
363  if (!t)
364  continue;
365 
366  u = (alpha * FFABS(t)) >> 7;
367  if (u > 3 - (filter_p1 && filter_q1))
368  continue;
369 
370  t <<= 2;
371  if (filter_p1 && filter_q1)
372  t += src[-2*step] - src[1*step];
373 
374  diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
375  src[-1*step] = cm[src[-1*step] + diff];
376  src[ 0*step] = cm[src[ 0*step] - diff];
377 
378  if (filter_p1 && FFABS(diff_p1p2) <= beta) {
379  t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
380  src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
381  }
382 
383  if (filter_q1 && FFABS(diff_q1q2) <= beta) {
384  t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
385  src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
386  }
387  }
388 }
389 
390 static void rv40_h_weak_loop_filter(uint8_t *src, const ptrdiff_t stride,
391  const int filter_p1, const int filter_q1,
392  const int alpha, const int beta,
393  const int lim_p0q0, const int lim_q1,
394  const int lim_p1)
395 {
396  rv40_weak_loop_filter(src, stride, 1, filter_p1, filter_q1,
397  alpha, beta, lim_p0q0, lim_q1, lim_p1);
398 }
399 
400 static void rv40_v_weak_loop_filter(uint8_t *src, const ptrdiff_t stride,
401  const int filter_p1, const int filter_q1,
402  const int alpha, const int beta,
403  const int lim_p0q0, const int lim_q1,
404  const int lim_p1)
405 {
406  rv40_weak_loop_filter(src, 1, stride, filter_p1, filter_q1,
407  alpha, beta, lim_p0q0, lim_q1, lim_p1);
408 }
409 
411  const int step,
412  const ptrdiff_t stride,
413  const int alpha,
414  const int lims,
415  const int dmode,
416  const int chroma)
417 {
418  int i;
419 
420  for(i = 0; i < 4; i++, src += stride){
421  int sflag, p0, q0, p1, q1;
422  int t = src[0*step] - src[-1*step];
423 
424  if (!t)
425  continue;
426 
427  sflag = (alpha * FFABS(t)) >> 7;
428  if (sflag > 1)
429  continue;
430 
431  p0 = (25*src[-3*step] + 26*src[-2*step] + 26*src[-1*step] +
432  26*src[ 0*step] + 25*src[ 1*step] +
433  rv40_dither_l[dmode + i]) >> 7;
434 
435  q0 = (25*src[-2*step] + 26*src[-1*step] + 26*src[ 0*step] +
436  26*src[ 1*step] + 25*src[ 2*step] +
437  rv40_dither_r[dmode + i]) >> 7;
438 
439  if (sflag) {
440  p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
441  q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
442  }
443 
444  p1 = (25*src[-4*step] + 26*src[-3*step] + 26*src[-2*step] + 26*p0 +
445  25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
446  q1 = (25*src[-1*step] + 26*q0 + 26*src[ 1*step] + 26*src[ 2*step] +
447  25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
448 
449  if (sflag) {
450  p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
451  q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
452  }
453 
454  src[-2*step] = p1;
455  src[-1*step] = p0;
456  src[ 0*step] = q0;
457  src[ 1*step] = q1;
458 
459  if(!chroma){
460  src[-3*step] = (25*src[-1*step] + 26*src[-2*step] +
461  51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
462  src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] +
463  51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
464  }
465  }
466 }
467 
468 static void rv40_h_strong_loop_filter(uint8_t *src, const ptrdiff_t stride,
469  const int alpha, const int lims,
470  const int dmode, const int chroma)
471 {
472  rv40_strong_loop_filter(src, stride, 1, alpha, lims, dmode, chroma);
473 }
474 
475 static void rv40_v_strong_loop_filter(uint8_t *src, const ptrdiff_t stride,
476  const int alpha, const int lims,
477  const int dmode, const int chroma)
478 {
479  rv40_strong_loop_filter(src, 1, stride, alpha, lims, dmode, chroma);
480 }
481 
483  int step, ptrdiff_t stride,
484  int beta, int beta2,
485  int edge,
486  int *p1, int *q1)
487 {
488  int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
489  int strong0 = 0, strong1 = 0;
490  uint8_t *ptr;
491  int i;
492 
493  for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
494  sum_p1p0 += ptr[-2*step] - ptr[-1*step];
495  sum_q1q0 += ptr[ 1*step] - ptr[ 0*step];
496  }
497 
498  *p1 = FFABS(sum_p1p0) < (beta << 2);
499  *q1 = FFABS(sum_q1q0) < (beta << 2);
500 
501  if(!*p1 && !*q1)
502  return 0;
503 
504  if (!edge)
505  return 0;
506 
507  for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
508  sum_p1p2 += ptr[-2*step] - ptr[-3*step];
509  sum_q1q2 += ptr[ 1*step] - ptr[ 2*step];
510  }
511 
512  strong0 = *p1 && (FFABS(sum_p1p2) < beta2);
513  strong1 = *q1 && (FFABS(sum_q1q2) < beta2);
514 
515  return strong0 && strong1;
516 }
517 
518 static int rv40_h_loop_filter_strength(uint8_t *src, ptrdiff_t stride,
519  int beta, int beta2, int edge,
520  int *p1, int *q1)
521 {
522  return rv40_loop_filter_strength(src, stride, 1, beta, beta2, edge, p1, q1);
523 }
524 
525 static int rv40_v_loop_filter_strength(uint8_t *src, ptrdiff_t stride,
526  int beta, int beta2, int edge,
527  int *p1, int *q1)
528 {
529  return rv40_loop_filter_strength(src, 1, stride, beta, beta2, edge, p1, q1);
530 }
531 
533 {
534  H264QpelContext qpel;
535 
536  ff_rv34dsp_init(c);
537  ff_h264qpel_init(&qpel, 8);
538 
539  c->put_pixels_tab[0][ 0] = qpel.put_h264_qpel_pixels_tab[0][0];
540  c->put_pixels_tab[0][ 1] = put_rv40_qpel16_mc10_c;
541  c->put_pixels_tab[0][ 2] = qpel.put_h264_qpel_pixels_tab[0][2];
542  c->put_pixels_tab[0][ 3] = put_rv40_qpel16_mc30_c;
543  c->put_pixels_tab[0][ 4] = put_rv40_qpel16_mc01_c;
544  c->put_pixels_tab[0][ 5] = put_rv40_qpel16_mc11_c;
545  c->put_pixels_tab[0][ 6] = put_rv40_qpel16_mc21_c;
546  c->put_pixels_tab[0][ 7] = put_rv40_qpel16_mc31_c;
547  c->put_pixels_tab[0][ 8] = qpel.put_h264_qpel_pixels_tab[0][8];
548  c->put_pixels_tab[0][ 9] = put_rv40_qpel16_mc12_c;
549  c->put_pixels_tab[0][10] = put_rv40_qpel16_mc22_c;
550  c->put_pixels_tab[0][11] = put_rv40_qpel16_mc32_c;
551  c->put_pixels_tab[0][12] = put_rv40_qpel16_mc03_c;
552  c->put_pixels_tab[0][13] = put_rv40_qpel16_mc13_c;
553  c->put_pixels_tab[0][14] = put_rv40_qpel16_mc23_c;
555  c->avg_pixels_tab[0][ 0] = qpel.avg_h264_qpel_pixels_tab[0][0];
556  c->avg_pixels_tab[0][ 1] = avg_rv40_qpel16_mc10_c;
557  c->avg_pixels_tab[0][ 2] = qpel.avg_h264_qpel_pixels_tab[0][2];
558  c->avg_pixels_tab[0][ 3] = avg_rv40_qpel16_mc30_c;
559  c->avg_pixels_tab[0][ 4] = avg_rv40_qpel16_mc01_c;
560  c->avg_pixels_tab[0][ 5] = avg_rv40_qpel16_mc11_c;
561  c->avg_pixels_tab[0][ 6] = avg_rv40_qpel16_mc21_c;
562  c->avg_pixels_tab[0][ 7] = avg_rv40_qpel16_mc31_c;
563  c->avg_pixels_tab[0][ 8] = qpel.avg_h264_qpel_pixels_tab[0][8];
564  c->avg_pixels_tab[0][ 9] = avg_rv40_qpel16_mc12_c;
565  c->avg_pixels_tab[0][10] = avg_rv40_qpel16_mc22_c;
566  c->avg_pixels_tab[0][11] = avg_rv40_qpel16_mc32_c;
567  c->avg_pixels_tab[0][12] = avg_rv40_qpel16_mc03_c;
568  c->avg_pixels_tab[0][13] = avg_rv40_qpel16_mc13_c;
569  c->avg_pixels_tab[0][14] = avg_rv40_qpel16_mc23_c;
571  c->put_pixels_tab[1][ 0] = qpel.put_h264_qpel_pixels_tab[1][0];
572  c->put_pixels_tab[1][ 1] = put_rv40_qpel8_mc10_c;
573  c->put_pixels_tab[1][ 2] = qpel.put_h264_qpel_pixels_tab[1][2];
574  c->put_pixels_tab[1][ 3] = put_rv40_qpel8_mc30_c;
575  c->put_pixels_tab[1][ 4] = put_rv40_qpel8_mc01_c;
576  c->put_pixels_tab[1][ 5] = put_rv40_qpel8_mc11_c;
577  c->put_pixels_tab[1][ 6] = put_rv40_qpel8_mc21_c;
578  c->put_pixels_tab[1][ 7] = put_rv40_qpel8_mc31_c;
579  c->put_pixels_tab[1][ 8] = qpel.put_h264_qpel_pixels_tab[1][8];
580  c->put_pixels_tab[1][ 9] = put_rv40_qpel8_mc12_c;
581  c->put_pixels_tab[1][10] = put_rv40_qpel8_mc22_c;
582  c->put_pixels_tab[1][11] = put_rv40_qpel8_mc32_c;
583  c->put_pixels_tab[1][12] = put_rv40_qpel8_mc03_c;
584  c->put_pixels_tab[1][13] = put_rv40_qpel8_mc13_c;
585  c->put_pixels_tab[1][14] = put_rv40_qpel8_mc23_c;
587  c->avg_pixels_tab[1][ 0] = qpel.avg_h264_qpel_pixels_tab[1][0];
588  c->avg_pixels_tab[1][ 1] = avg_rv40_qpel8_mc10_c;
589  c->avg_pixels_tab[1][ 2] = qpel.avg_h264_qpel_pixels_tab[1][2];
590  c->avg_pixels_tab[1][ 3] = avg_rv40_qpel8_mc30_c;
591  c->avg_pixels_tab[1][ 4] = avg_rv40_qpel8_mc01_c;
592  c->avg_pixels_tab[1][ 5] = avg_rv40_qpel8_mc11_c;
593  c->avg_pixels_tab[1][ 6] = avg_rv40_qpel8_mc21_c;
594  c->avg_pixels_tab[1][ 7] = avg_rv40_qpel8_mc31_c;
595  c->avg_pixels_tab[1][ 8] = qpel.avg_h264_qpel_pixels_tab[1][8];
596  c->avg_pixels_tab[1][ 9] = avg_rv40_qpel8_mc12_c;
597  c->avg_pixels_tab[1][10] = avg_rv40_qpel8_mc22_c;
598  c->avg_pixels_tab[1][11] = avg_rv40_qpel8_mc32_c;
599  c->avg_pixels_tab[1][12] = avg_rv40_qpel8_mc03_c;
600  c->avg_pixels_tab[1][13] = avg_rv40_qpel8_mc13_c;
601  c->avg_pixels_tab[1][14] = avg_rv40_qpel8_mc23_c;
603 
604  c->put_chroma_pixels_tab[0] = put_rv40_chroma_mc8_c;
605  c->put_chroma_pixels_tab[1] = put_rv40_chroma_mc4_c;
606  c->avg_chroma_pixels_tab[0] = avg_rv40_chroma_mc8_c;
607  c->avg_chroma_pixels_tab[1] = avg_rv40_chroma_mc4_c;
608 
609  c->rv40_weight_pixels_tab[0][0] = rv40_weight_func_rnd_16;
610  c->rv40_weight_pixels_tab[0][1] = rv40_weight_func_rnd_8;
611  c->rv40_weight_pixels_tab[1][0] = rv40_weight_func_nornd_16;
612  c->rv40_weight_pixels_tab[1][1] = rv40_weight_func_nornd_8;
613 
620 
621  if (ARCH_AARCH64)
623  if (ARCH_ARM)
625  if (ARCH_X86)
627 }