FFmpeg  4.0
rv40dsp.c
Go to the documentation of this file.
1 /*
2  * RV40 decoder motion compensation functions
3  * Copyright (c) 2008 Konstantin Shishkov
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  * RV40 decoder motion compensation functions
25  */
26 
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 #include "libavutil/avassert.h"
36 
37 #define RV40_LOWPASS(OPNAME, OP) \
38 static void OPNAME ## rv40_qpel8_h_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
39  const int h, const int C1, const int C2, const int SHIFT){\
40  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
41  int i;\
42  for(i = 0; i < h; i++)\
43  {\
44  OP(dst[0], (src[-2] + src[ 3] - 5*(src[-1]+src[2]) + src[0]*C1 + src[1]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
45  OP(dst[1], (src[-1] + src[ 4] - 5*(src[ 0]+src[3]) + src[1]*C1 + src[2]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
46  OP(dst[2], (src[ 0] + src[ 5] - 5*(src[ 1]+src[4]) + src[2]*C1 + src[3]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
47  OP(dst[3], (src[ 1] + src[ 6] - 5*(src[ 2]+src[5]) + src[3]*C1 + src[4]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
48  OP(dst[4], (src[ 2] + src[ 7] - 5*(src[ 3]+src[6]) + src[4]*C1 + src[5]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
49  OP(dst[5], (src[ 3] + src[ 8] - 5*(src[ 4]+src[7]) + src[5]*C1 + src[6]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
50  OP(dst[6], (src[ 4] + src[ 9] - 5*(src[ 5]+src[8]) + src[6]*C1 + src[7]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
51  OP(dst[7], (src[ 5] + src[10] - 5*(src[ 6]+src[9]) + src[7]*C1 + src[8]*C2 + (1<<(SHIFT-1))) >> SHIFT);\
52  dst += dstStride;\
53  src += srcStride;\
54  }\
55 }\
56 \
57 static void OPNAME ## rv40_qpel8_v_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
58  const int w, const int C1, const int C2, const int SHIFT){\
59  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
60  int i;\
61  for(i = 0; i < w; i++)\
62  {\
63  const int srcB = src[-2*srcStride];\
64  const int srcA = src[-1*srcStride];\
65  const int src0 = src[0 *srcStride];\
66  const int src1 = src[1 *srcStride];\
67  const int src2 = src[2 *srcStride];\
68  const int src3 = src[3 *srcStride];\
69  const int src4 = src[4 *srcStride];\
70  const int src5 = src[5 *srcStride];\
71  const int src6 = src[6 *srcStride];\
72  const int src7 = src[7 *srcStride];\
73  const int src8 = src[8 *srcStride];\
74  const int src9 = src[9 *srcStride];\
75  const int src10 = src[10*srcStride];\
76  OP(dst[0*dstStride], (srcB + src3 - 5*(srcA+src2) + src0*C1 + src1*C2 + (1<<(SHIFT-1))) >> SHIFT);\
77  OP(dst[1*dstStride], (srcA + src4 - 5*(src0+src3) + src1*C1 + src2*C2 + (1<<(SHIFT-1))) >> SHIFT);\
78  OP(dst[2*dstStride], (src0 + src5 - 5*(src1+src4) + src2*C1 + src3*C2 + (1<<(SHIFT-1))) >> SHIFT);\
79  OP(dst[3*dstStride], (src1 + src6 - 5*(src2+src5) + src3*C1 + src4*C2 + (1<<(SHIFT-1))) >> SHIFT);\
80  OP(dst[4*dstStride], (src2 + src7 - 5*(src3+src6) + src4*C1 + src5*C2 + (1<<(SHIFT-1))) >> SHIFT);\
81  OP(dst[5*dstStride], (src3 + src8 - 5*(src4+src7) + src5*C1 + src6*C2 + (1<<(SHIFT-1))) >> SHIFT);\
82  OP(dst[6*dstStride], (src4 + src9 - 5*(src5+src8) + src6*C1 + src7*C2 + (1<<(SHIFT-1))) >> SHIFT);\
83  OP(dst[7*dstStride], (src5 + src10 - 5*(src6+src9) + src7*C1 + src8*C2 + (1<<(SHIFT-1))) >> SHIFT);\
84  dst++;\
85  src++;\
86  }\
87 }\
88 \
89 static void OPNAME ## rv40_qpel16_v_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
90  const int w, const int C1, const int C2, const int SHIFT){\
91  OPNAME ## rv40_qpel8_v_lowpass(dst , src , dstStride, srcStride, 8, C1, C2, SHIFT);\
92  OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
93  src += 8*srcStride;\
94  dst += 8*dstStride;\
95  OPNAME ## rv40_qpel8_v_lowpass(dst , src , dstStride, srcStride, w-8, C1, C2, SHIFT);\
96  OPNAME ## rv40_qpel8_v_lowpass(dst+8, src+8, dstStride, srcStride, w-8, C1, C2, SHIFT);\
97 }\
98 \
99 static void OPNAME ## rv40_qpel16_h_lowpass(uint8_t *dst, const uint8_t *src, int dstStride, int srcStride,\
100  const int h, const int C1, const int C2, const int SHIFT){\
101  OPNAME ## rv40_qpel8_h_lowpass(dst , src , dstStride, srcStride, 8, C1, C2, SHIFT);\
102  OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, 8, C1, C2, SHIFT);\
103  src += 8*srcStride;\
104  dst += 8*dstStride;\
105  OPNAME ## rv40_qpel8_h_lowpass(dst , src , dstStride, srcStride, h-8, C1, C2, SHIFT);\
106  OPNAME ## rv40_qpel8_h_lowpass(dst+8, src+8, dstStride, srcStride, h-8, C1, C2, SHIFT);\
107 }\
108 \
109 
110 #define RV40_MC(OPNAME, SIZE) \
111 static void OPNAME ## rv40_qpel ## SIZE ## _mc10_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
112 {\
113  OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
114 }\
115 \
116 static void OPNAME ## rv40_qpel ## SIZE ## _mc30_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
117 {\
118  OPNAME ## rv40_qpel ## SIZE ## _h_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
119 }\
120 \
121 static void OPNAME ## rv40_qpel ## SIZE ## _mc01_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
122 {\
123  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 52, 20, 6);\
124 }\
125 \
126 static void OPNAME ## rv40_qpel ## SIZE ## _mc11_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
127 {\
128  uint8_t full[SIZE*(SIZE+5)];\
129  uint8_t * const full_mid = full + SIZE*2;\
130  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
131  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
132 }\
133 \
134 static void OPNAME ## rv40_qpel ## SIZE ## _mc21_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
135 {\
136  uint8_t full[SIZE*(SIZE+5)];\
137  uint8_t * const full_mid = full + SIZE*2;\
138  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
139  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
140 }\
141 \
142 static void OPNAME ## rv40_qpel ## SIZE ## _mc31_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
143 {\
144  uint8_t full[SIZE*(SIZE+5)];\
145  uint8_t * const full_mid = full + SIZE*2;\
146  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
147  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 52, 20, 6);\
148 }\
149 \
150 static void OPNAME ## rv40_qpel ## SIZE ## _mc12_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
151 {\
152  uint8_t full[SIZE*(SIZE+5)];\
153  uint8_t * const full_mid = full + SIZE*2;\
154  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
155  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
156 }\
157 \
158 static void OPNAME ## rv40_qpel ## SIZE ## _mc22_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
159 {\
160  uint8_t full[SIZE*(SIZE+5)];\
161  uint8_t * const full_mid = full + SIZE*2;\
162  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
163  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
164 }\
165 \
166 static void OPNAME ## rv40_qpel ## SIZE ## _mc32_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
167 {\
168  uint8_t full[SIZE*(SIZE+5)];\
169  uint8_t * const full_mid = full + SIZE*2;\
170  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 52, 6);\
171  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 20, 5);\
172 }\
173 \
174 static void OPNAME ## rv40_qpel ## SIZE ## _mc03_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
175 {\
176  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, src, stride, stride, SIZE, 20, 52, 6);\
177 }\
178 \
179 static void OPNAME ## rv40_qpel ## SIZE ## _mc13_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
180 {\
181  uint8_t full[SIZE*(SIZE+5)];\
182  uint8_t * const full_mid = full + SIZE*2;\
183  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 52, 20, 6);\
184  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
185 }\
186 \
187 static void OPNAME ## rv40_qpel ## SIZE ## _mc23_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
188 {\
189  uint8_t full[SIZE*(SIZE+5)];\
190  uint8_t * const full_mid = full + SIZE*2;\
191  put_rv40_qpel ## SIZE ## _h_lowpass(full, src - 2*stride, SIZE, stride, SIZE+5, 20, 20, 5);\
192  OPNAME ## rv40_qpel ## SIZE ## _v_lowpass(dst, full_mid, stride, SIZE, SIZE, 20, 52, 6);\
193 }\
194 \
195 
196 #define op_avg(a, b) a = (((a)+cm[b]+1)>>1)
197 #define op_put(a, b) a = cm[b]
198 
199 RV40_LOWPASS(put_ , op_put)
200 RV40_LOWPASS(avg_ , op_avg)
201 
202 #undef op_avg
203 #undef op_put
204 
205 RV40_MC(put_, 8)
206 RV40_MC(put_, 16)
207 RV40_MC(avg_, 8)
208 RV40_MC(avg_, 16)
209 
210 #define PIXOP2(OPNAME, OP) \
211 static inline void OPNAME ## _pixels8_xy2_8_c(uint8_t *block, \
212  const uint8_t *pixels, \
213  ptrdiff_t line_size, \
214  int h) \
215 { \
216  /* FIXME HIGH BIT DEPTH */ \
217  int j; \
218  \
219  for (j = 0; j < 2; j++) { \
220  int i; \
221  const uint32_t a = AV_RN32(pixels); \
222  const uint32_t b = AV_RN32(pixels + 1); \
223  uint32_t l0 = (a & 0x03030303UL) + \
224  (b & 0x03030303UL) + \
225  0x02020202UL; \
226  uint32_t h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
227  ((b & 0xFCFCFCFCUL) >> 2); \
228  uint32_t l1, h1; \
229  \
230  pixels += line_size; \
231  for (i = 0; i < h; i += 2) { \
232  uint32_t a = AV_RN32(pixels); \
233  uint32_t b = AV_RN32(pixels + 1); \
234  l1 = (a & 0x03030303UL) + \
235  (b & 0x03030303UL); \
236  h1 = ((a & 0xFCFCFCFCUL) >> 2) + \
237  ((b & 0xFCFCFCFCUL) >> 2); \
238  OP(*((uint32_t *) block), \
239  h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
240  pixels += line_size; \
241  block += line_size; \
242  a = AV_RN32(pixels); \
243  b = AV_RN32(pixels + 1); \
244  l0 = (a & 0x03030303UL) + \
245  (b & 0x03030303UL) + \
246  0x02020202UL; \
247  h0 = ((a & 0xFCFCFCFCUL) >> 2) + \
248  ((b & 0xFCFCFCFCUL) >> 2); \
249  OP(*((uint32_t *) block), \
250  h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL)); \
251  pixels += line_size; \
252  block += line_size; \
253  } \
254  pixels += 4 - line_size * (h + 1); \
255  block += 4 - line_size * h; \
256  } \
257 } \
258  \
259 CALL_2X_PIXELS(OPNAME ## _pixels16_xy2_8_c, \
260  OPNAME ## _pixels8_xy2_8_c, \
261  8) \
262 
263 #define op_avg(a, b) a = rnd_avg32(a, b)
264 #define op_put(a, b) a = b
265 PIXOP2(avg, op_avg)
266 PIXOP2(put, op_put)
267 #undef op_avg
268 #undef op_put
269 
270 static void put_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
271 {
272  put_pixels16_xy2_8_c(dst, src, stride, 16);
273 }
274 static void avg_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
275 {
276  avg_pixels16_xy2_8_c(dst, src, stride, 16);
277 }
278 static void put_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
279 {
280  put_pixels8_xy2_8_c(dst, src, stride, 8);
281 }
282 static void avg_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
283 {
284  avg_pixels8_xy2_8_c(dst, src, stride, 8);
285 }
286 
287 static const int rv40_bias[4][4] = {
288  { 0, 16, 32, 16 },
289  { 32, 28, 32, 28 },
290  { 0, 32, 16, 32 },
291  { 32, 28, 32, 28 }
292 };
293 
294 #define RV40_CHROMA_MC(OPNAME, OP)\
295 static void OPNAME ## rv40_chroma_mc4_c(uint8_t *dst /*align 8*/,\
296  uint8_t *src /*align 1*/,\
297  ptrdiff_t stride, int h, int x, int y)\
298 {\
299  const int A = (8-x) * (8-y);\
300  const int B = ( x) * (8-y);\
301  const int C = (8-x) * ( y);\
302  const int D = ( x) * ( y);\
303  int i;\
304  int bias = rv40_bias[y>>1][x>>1];\
305  \
306  av_assert2(x<8 && y<8 && x>=0 && y>=0);\
307 \
308  if(D){\
309  for(i = 0; i < h; i++){\
310  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
311  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
312  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
313  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
314  dst += stride;\
315  src += stride;\
316  }\
317  }else{\
318  const int E = B + C;\
319  const ptrdiff_t step = C ? stride : 1;\
320  for(i = 0; i < h; i++){\
321  OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
322  OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
323  OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
324  OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
325  dst += stride;\
326  src += stride;\
327  }\
328  }\
329 }\
330 \
331 static void OPNAME ## rv40_chroma_mc8_c(uint8_t *dst/*align 8*/,\
332  uint8_t *src/*align 1*/,\
333  ptrdiff_t stride, int h, int x, int y)\
334 {\
335  const int A = (8-x) * (8-y);\
336  const int B = ( x) * (8-y);\
337  const int C = (8-x) * ( y);\
338  const int D = ( x) * ( y);\
339  int i;\
340  int bias = rv40_bias[y>>1][x>>1];\
341  \
342  av_assert2(x<8 && y<8 && x>=0 && y>=0);\
343 \
344  if(D){\
345  for(i = 0; i < h; i++){\
346  OP(dst[0], (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + bias));\
347  OP(dst[1], (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + bias));\
348  OP(dst[2], (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + bias));\
349  OP(dst[3], (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + bias));\
350  OP(dst[4], (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + bias));\
351  OP(dst[5], (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + bias));\
352  OP(dst[6], (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + bias));\
353  OP(dst[7], (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + bias));\
354  dst += stride;\
355  src += stride;\
356  }\
357  }else{\
358  const int E = B + C;\
359  const ptrdiff_t step = C ? stride : 1;\
360  for(i = 0; i < h; i++){\
361  OP(dst[0], (A*src[0] + E*src[step+0] + bias));\
362  OP(dst[1], (A*src[1] + E*src[step+1] + bias));\
363  OP(dst[2], (A*src[2] + E*src[step+2] + bias));\
364  OP(dst[3], (A*src[3] + E*src[step+3] + bias));\
365  OP(dst[4], (A*src[4] + E*src[step+4] + bias));\
366  OP(dst[5], (A*src[5] + E*src[step+5] + bias));\
367  OP(dst[6], (A*src[6] + E*src[step+6] + bias));\
368  OP(dst[7], (A*src[7] + E*src[step+7] + bias));\
369  dst += stride;\
370  src += stride;\
371  }\
372  }\
373 }
374 
375 #define op_avg(a, b) a = (((a)+((b)>>6)+1)>>1)
376 #define op_put(a, b) a = ((b)>>6)
377 
378 RV40_CHROMA_MC(put_, op_put)
379 RV40_CHROMA_MC(avg_, op_avg)
380 
381 #define RV40_WEIGHT_FUNC(size) \
382 static void rv40_weight_func_rnd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
383 {\
384  int i, j;\
385 \
386  for (j = 0; j < size; j++) {\
387  for (i = 0; i < size; i++)\
388  dst[i] = (((w2 * src1[i]) >> 9) + ((w1 * src2[i]) >> 9) + 0x10) >> 5;\
389  src1 += stride;\
390  src2 += stride;\
391  dst += stride;\
392  }\
393 }\
394 static void rv40_weight_func_nornd_ ## size (uint8_t *dst, uint8_t *src1, uint8_t *src2, int w1, int w2, ptrdiff_t stride)\
395 {\
396  int i, j;\
397 \
398  for (j = 0; j < size; j++) {\
399  for (i = 0; i < size; i++)\
400  dst[i] = (w2 * src1[i] + w1 * src2[i] + 0x10) >> 5;\
401  src1 += stride;\
402  src2 += stride;\
403  dst += stride;\
404  }\
405 }
406 
407 RV40_WEIGHT_FUNC(16)
408 RV40_WEIGHT_FUNC(8)
409 
410 /**
411  * dither values for deblocking filter - left/top values
412  */
413 static const uint8_t rv40_dither_l[16] = {
414  0x40, 0x50, 0x20, 0x60, 0x30, 0x50, 0x40, 0x30,
415  0x50, 0x40, 0x50, 0x30, 0x60, 0x20, 0x50, 0x40
416 };
417 
418 /**
419  * dither values for deblocking filter - right/bottom values
420  */
421 static const uint8_t rv40_dither_r[16] = {
422  0x40, 0x30, 0x60, 0x20, 0x50, 0x30, 0x30, 0x40,
423  0x40, 0x40, 0x50, 0x30, 0x20, 0x60, 0x30, 0x40
424 };
425 
426 #define CLIP_SYMM(a, b) av_clip(a, -(b), b)
427 /**
428  * weaker deblocking very similar to the one described in 4.4.2 of JVT-A003r1
429  */
430 static av_always_inline void rv40_weak_loop_filter(uint8_t *src,
431  const int step,
432  const ptrdiff_t stride,
433  const int filter_p1,
434  const int filter_q1,
435  const int alpha,
436  const int beta,
437  const int lim_p0q0,
438  const int lim_q1,
439  const int lim_p1)
440 {
441  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;
442  int i, t, u, diff;
443 
444  for (i = 0; i < 4; i++, src += stride) {
445  int diff_p1p0 = src[-2*step] - src[-1*step];
446  int diff_q1q0 = src[ 1*step] - src[ 0*step];
447  int diff_p1p2 = src[-2*step] - src[-3*step];
448  int diff_q1q2 = src[ 1*step] - src[ 2*step];
449 
450  t = src[0*step] - src[-1*step];
451  if (!t)
452  continue;
453 
454  u = (alpha * FFABS(t)) >> 7;
455  if (u > 3 - (filter_p1 && filter_q1))
456  continue;
457 
458  t *= 1 << 2;
459  if (filter_p1 && filter_q1)
460  t += src[-2*step] - src[1*step];
461 
462  diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
463  src[-1*step] = cm[src[-1*step] + diff];
464  src[ 0*step] = cm[src[ 0*step] - diff];
465 
466  if (filter_p1 && FFABS(diff_p1p2) <= beta) {
467  t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
468  src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
469  }
470 
471  if (filter_q1 && FFABS(diff_q1q2) <= beta) {
472  t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
473  src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
474  }
475  }
476 }
477 
478 static void rv40_h_weak_loop_filter(uint8_t *src, const ptrdiff_t stride,
479  const int filter_p1, const int filter_q1,
480  const int alpha, const int beta,
481  const int lim_p0q0, const int lim_q1,
482  const int lim_p1)
483 {
484  rv40_weak_loop_filter(src, stride, 1, filter_p1, filter_q1,
485  alpha, beta, lim_p0q0, lim_q1, lim_p1);
486 }
487 
488 static void rv40_v_weak_loop_filter(uint8_t *src, const ptrdiff_t stride,
489  const int filter_p1, const int filter_q1,
490  const int alpha, const int beta,
491  const int lim_p0q0, const int lim_q1,
492  const int lim_p1)
493 {
494  rv40_weak_loop_filter(src, 1, stride, filter_p1, filter_q1,
495  alpha, beta, lim_p0q0, lim_q1, lim_p1);
496 }
497 
498 static av_always_inline void rv40_strong_loop_filter(uint8_t *src,
499  const int step,
500  const ptrdiff_t stride,
501  const int alpha,
502  const int lims,
503  const int dmode,
504  const int chroma)
505 {
506  int i;
507 
508  for(i = 0; i < 4; i++, src += stride){
509  int sflag, p0, q0, p1, q1;
510  int t = src[0*step] - src[-1*step];
511 
512  if (!t)
513  continue;
514 
515  sflag = (alpha * FFABS(t)) >> 7;
516  if (sflag > 1)
517  continue;
518 
519  p0 = (25*src[-3*step] + 26*src[-2*step] + 26*src[-1*step] +
520  26*src[ 0*step] + 25*src[ 1*step] +
521  rv40_dither_l[dmode + i]) >> 7;
522 
523  q0 = (25*src[-2*step] + 26*src[-1*step] + 26*src[ 0*step] +
524  26*src[ 1*step] + 25*src[ 2*step] +
525  rv40_dither_r[dmode + i]) >> 7;
526 
527  if (sflag) {
528  p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
529  q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
530  }
531 
532  p1 = (25*src[-4*step] + 26*src[-3*step] + 26*src[-2*step] + 26*p0 +
533  25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
534  q1 = (25*src[-1*step] + 26*q0 + 26*src[ 1*step] + 26*src[ 2*step] +
535  25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
536 
537  if (sflag) {
538  p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
539  q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
540  }
541 
542  src[-2*step] = p1;
543  src[-1*step] = p0;
544  src[ 0*step] = q0;
545  src[ 1*step] = q1;
546 
547  if(!chroma){
548  src[-3*step] = (25*src[-1*step] + 26*src[-2*step] +
549  51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
550  src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] +
551  51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
552  }
553  }
554 }
555 
556 static void rv40_h_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, stride, 1, alpha, lims, dmode, chroma);
561 }
562 
563 static void rv40_v_strong_loop_filter(uint8_t *src, const ptrdiff_t stride,
564  const int alpha, const int lims,
565  const int dmode, const int chroma)
566 {
567  rv40_strong_loop_filter(src, 1, stride, alpha, lims, dmode, chroma);
568 }
569 
570 static av_always_inline int rv40_loop_filter_strength(uint8_t *src,
571  int step, ptrdiff_t stride,
572  int beta, int beta2,
573  int edge,
574  int *p1, int *q1)
575 {
576  int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
577  int strong0 = 0, strong1 = 0;
578  uint8_t *ptr;
579  int i;
580 
581  for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
582  sum_p1p0 += ptr[-2*step] - ptr[-1*step];
583  sum_q1q0 += ptr[ 1*step] - ptr[ 0*step];
584  }
585 
586  *p1 = FFABS(sum_p1p0) < (beta << 2);
587  *q1 = FFABS(sum_q1q0) < (beta << 2);
588 
589  if(!*p1 && !*q1)
590  return 0;
591 
592  if (!edge)
593  return 0;
594 
595  for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
596  sum_p1p2 += ptr[-2*step] - ptr[-3*step];
597  sum_q1q2 += ptr[ 1*step] - ptr[ 2*step];
598  }
599 
600  strong0 = *p1 && (FFABS(sum_p1p2) < beta2);
601  strong1 = *q1 && (FFABS(sum_q1q2) < beta2);
602 
603  return strong0 && strong1;
604 }
605 
606 static int rv40_h_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, stride, 1, beta, beta2, edge, p1, q1);
611 }
612 
613 static int rv40_v_loop_filter_strength(uint8_t *src, ptrdiff_t stride,
614  int beta, int beta2, int edge,
615  int *p1, int *q1)
616 {
617  return rv40_loop_filter_strength(src, 1, stride, beta, beta2, edge, p1, q1);
618 }
619 
620 av_cold void ff_rv40dsp_init(RV34DSPContext *c)
621 {
622  H264QpelContext qpel;
623 
624  ff_rv34dsp_init(c);
625  ff_h264qpel_init(&qpel, 8);
626 
627  c->put_pixels_tab[0][ 0] = qpel.put_h264_qpel_pixels_tab[0][0];
628  c->put_pixels_tab[0][ 1] = put_rv40_qpel16_mc10_c;
629  c->put_pixels_tab[0][ 2] = qpel.put_h264_qpel_pixels_tab[0][2];
630  c->put_pixels_tab[0][ 3] = put_rv40_qpel16_mc30_c;
631  c->put_pixels_tab[0][ 4] = put_rv40_qpel16_mc01_c;
632  c->put_pixels_tab[0][ 5] = put_rv40_qpel16_mc11_c;
633  c->put_pixels_tab[0][ 6] = put_rv40_qpel16_mc21_c;
634  c->put_pixels_tab[0][ 7] = put_rv40_qpel16_mc31_c;
635  c->put_pixels_tab[0][ 8] = qpel.put_h264_qpel_pixels_tab[0][8];
636  c->put_pixels_tab[0][ 9] = put_rv40_qpel16_mc12_c;
637  c->put_pixels_tab[0][10] = put_rv40_qpel16_mc22_c;
638  c->put_pixels_tab[0][11] = put_rv40_qpel16_mc32_c;
639  c->put_pixels_tab[0][12] = put_rv40_qpel16_mc03_c;
640  c->put_pixels_tab[0][13] = put_rv40_qpel16_mc13_c;
641  c->put_pixels_tab[0][14] = put_rv40_qpel16_mc23_c;
642  c->put_pixels_tab[0][15] = put_rv40_qpel16_mc33_c;
643  c->avg_pixels_tab[0][ 0] = qpel.avg_h264_qpel_pixels_tab[0][0];
644  c->avg_pixels_tab[0][ 1] = avg_rv40_qpel16_mc10_c;
645  c->avg_pixels_tab[0][ 2] = qpel.avg_h264_qpel_pixels_tab[0][2];
646  c->avg_pixels_tab[0][ 3] = avg_rv40_qpel16_mc30_c;
647  c->avg_pixels_tab[0][ 4] = avg_rv40_qpel16_mc01_c;
648  c->avg_pixels_tab[0][ 5] = avg_rv40_qpel16_mc11_c;
649  c->avg_pixels_tab[0][ 6] = avg_rv40_qpel16_mc21_c;
650  c->avg_pixels_tab[0][ 7] = avg_rv40_qpel16_mc31_c;
651  c->avg_pixels_tab[0][ 8] = qpel.avg_h264_qpel_pixels_tab[0][8];
652  c->avg_pixels_tab[0][ 9] = avg_rv40_qpel16_mc12_c;
653  c->avg_pixels_tab[0][10] = avg_rv40_qpel16_mc22_c;
654  c->avg_pixels_tab[0][11] = avg_rv40_qpel16_mc32_c;
655  c->avg_pixels_tab[0][12] = avg_rv40_qpel16_mc03_c;
656  c->avg_pixels_tab[0][13] = avg_rv40_qpel16_mc13_c;
657  c->avg_pixels_tab[0][14] = avg_rv40_qpel16_mc23_c;
658  c->avg_pixels_tab[0][15] = avg_rv40_qpel16_mc33_c;
659  c->put_pixels_tab[1][ 0] = qpel.put_h264_qpel_pixels_tab[1][0];
660  c->put_pixels_tab[1][ 1] = put_rv40_qpel8_mc10_c;
661  c->put_pixels_tab[1][ 2] = qpel.put_h264_qpel_pixels_tab[1][2];
662  c->put_pixels_tab[1][ 3] = put_rv40_qpel8_mc30_c;
663  c->put_pixels_tab[1][ 4] = put_rv40_qpel8_mc01_c;
664  c->put_pixels_tab[1][ 5] = put_rv40_qpel8_mc11_c;
665  c->put_pixels_tab[1][ 6] = put_rv40_qpel8_mc21_c;
666  c->put_pixels_tab[1][ 7] = put_rv40_qpel8_mc31_c;
667  c->put_pixels_tab[1][ 8] = qpel.put_h264_qpel_pixels_tab[1][8];
668  c->put_pixels_tab[1][ 9] = put_rv40_qpel8_mc12_c;
669  c->put_pixels_tab[1][10] = put_rv40_qpel8_mc22_c;
670  c->put_pixels_tab[1][11] = put_rv40_qpel8_mc32_c;
671  c->put_pixels_tab[1][12] = put_rv40_qpel8_mc03_c;
672  c->put_pixels_tab[1][13] = put_rv40_qpel8_mc13_c;
673  c->put_pixels_tab[1][14] = put_rv40_qpel8_mc23_c;
674  c->put_pixels_tab[1][15] = put_rv40_qpel8_mc33_c;
675  c->avg_pixels_tab[1][ 0] = qpel.avg_h264_qpel_pixels_tab[1][0];
676  c->avg_pixels_tab[1][ 1] = avg_rv40_qpel8_mc10_c;
677  c->avg_pixels_tab[1][ 2] = qpel.avg_h264_qpel_pixels_tab[1][2];
678  c->avg_pixels_tab[1][ 3] = avg_rv40_qpel8_mc30_c;
679  c->avg_pixels_tab[1][ 4] = avg_rv40_qpel8_mc01_c;
680  c->avg_pixels_tab[1][ 5] = avg_rv40_qpel8_mc11_c;
681  c->avg_pixels_tab[1][ 6] = avg_rv40_qpel8_mc21_c;
682  c->avg_pixels_tab[1][ 7] = avg_rv40_qpel8_mc31_c;
683  c->avg_pixels_tab[1][ 8] = qpel.avg_h264_qpel_pixels_tab[1][8];
684  c->avg_pixels_tab[1][ 9] = avg_rv40_qpel8_mc12_c;
685  c->avg_pixels_tab[1][10] = avg_rv40_qpel8_mc22_c;
686  c->avg_pixels_tab[1][11] = avg_rv40_qpel8_mc32_c;
687  c->avg_pixels_tab[1][12] = avg_rv40_qpel8_mc03_c;
688  c->avg_pixels_tab[1][13] = avg_rv40_qpel8_mc13_c;
689  c->avg_pixels_tab[1][14] = avg_rv40_qpel8_mc23_c;
690  c->avg_pixels_tab[1][15] = avg_rv40_qpel8_mc33_c;
691 
692  c->put_chroma_pixels_tab[0] = put_rv40_chroma_mc8_c;
693  c->put_chroma_pixels_tab[1] = put_rv40_chroma_mc4_c;
694  c->avg_chroma_pixels_tab[0] = avg_rv40_chroma_mc8_c;
695  c->avg_chroma_pixels_tab[1] = avg_rv40_chroma_mc4_c;
696 
697  c->rv40_weight_pixels_tab[0][0] = rv40_weight_func_rnd_16;
698  c->rv40_weight_pixels_tab[0][1] = rv40_weight_func_rnd_8;
699  c->rv40_weight_pixels_tab[1][0] = rv40_weight_func_nornd_16;
700  c->rv40_weight_pixels_tab[1][1] = rv40_weight_func_nornd_8;
701 
702  c->rv40_weak_loop_filter[0] = rv40_h_weak_loop_filter;
703  c->rv40_weak_loop_filter[1] = rv40_v_weak_loop_filter;
704  c->rv40_strong_loop_filter[0] = rv40_h_strong_loop_filter;
705  c->rv40_strong_loop_filter[1] = rv40_v_strong_loop_filter;
706  c->rv40_loop_filter_strength[0] = rv40_h_loop_filter_strength;
707  c->rv40_loop_filter_strength[1] = rv40_v_loop_filter_strength;
708 
709  if (ARCH_AARCH64)
710  ff_rv40dsp_init_aarch64(c);
711  if (ARCH_ARM)
712  ff_rv40dsp_init_arm(c);
713  if (ARCH_X86)
714  ff_rv40dsp_init_x86(c);
715 }
RV34DSPContext::put_pixels_tab
qpel_mc_func put_pixels_tab[4][16]
Definition: rv34dsp.h:58
rv40_h_weak_loop_filter
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:478
alpha
static float alpha(float a)
Definition: af_superequalizer.c:109
chroma
static av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror)
Definition: vf_waveform.c:1386
rv40_h_strong_loop_filter
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:556
RV34DSPContext::rv40_loop_filter_strength
rv40_loop_filter_strength_func rv40_loop_filter_strength[2]
Definition: rv34dsp.h:74
ff_rv40dsp_init_arm
av_cold void ff_rv40dsp_init_arm(RV34DSPContext *c)
Definition: rv40dsp_init_arm.c:144
MAX_NEG_CROP
#define MAX_NEG_CROP
Definition: mathops.h:31
q1
static const uint8_t q1[256]
Definition: twofish.c:96
src
#define src
Definition: vp8dsp.c:254
stride
int stride
Definition: mace.c:144
rv40_strong_loop_filter
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:498
uint8_t
uint8_t
Definition: audio_convert.c:194
av_cold
#define av_cold
Definition: attributes.h:82
RV40_LOWPASS
#define RV40_LOWPASS(OPNAME, OP)
Definition: rv40dsp.c:37
put_rv40_qpel8_mc33_c
static void put_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:278
RV34DSPContext::rv40_weak_loop_filter
rv40_weak_loop_filter_func rv40_weak_loop_filter[2]
Definition: rv34dsp.h:72
avg_rv40_qpel16_mc33_c
static void avg_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:274
u
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:344
RV34DSPContext::rv40_weight_pixels_tab
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
ff_rv40dsp_init_aarch64
av_cold void ff_rv40dsp_init_aarch64(RV34DSPContext *c)
Definition: rv40dsp_init_aarch64.c:38
ff_rv34dsp_init
av_cold void ff_rv34dsp_init(RV34DSPContext *c)
Definition: rv34dsp.c:131
rv40_loop_filter_strength
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:570
H264QpelContext::avg_h264_qpel_pixels_tab
qpel_mc_func avg_h264_qpel_pixels_tab[4][16]
Definition: h264qpel.h:29
cm
#define cm
Definition: dvbsubdec.c:37
rv40_v_strong_loop_filter
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:563
RV34DSPContext::avg_pixels_tab
qpel_mc_func avg_pixels_tab[4][16]
Definition: rv34dsp.h:59
rv34dsp.h
RV30/40 decoder motion compensation functions.
ARCH_X86
#define ARCH_X86
Definition: config.h:38
ff_rv40dsp_init
av_cold void ff_rv40dsp_init(RV34DSPContext *c)
Definition: rv40dsp.c:620
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
RV40_MC
#define RV40_MC(OPNAME, SIZE)
Definition: rv40dsp.c:110
rv40_weak_loop_filter
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:430
H264QpelContext::put_h264_qpel_pixels_tab
qpel_mc_func put_h264_qpel_pixels_tab[4][16]
Definition: h264qpel.h:28
q0
static const uint8_t q0[256]
Definition: twofish.c:77
ARCH_ARM
#define ARCH_ARM
Definition: config.h:19
op_put
#define op_put(a, b)
Definition: rv40dsp.c:376
rv40_dither_r
static const uint8_t rv40_dither_r[16]
dither values for deblocking filter - right/bottom values
Definition: rv40dsp.c:421
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
rv40_v_weak_loop_filter
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:488
op_avg
#define op_avg(a, b)
Definition: rv40dsp.c:375
avg_rv40_qpel8_mc33_c
static void avg_rv40_qpel8_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:282
avcodec.h
Libavcodec external API header.
put_rv40_qpel16_mc33_c
static void put_rv40_qpel16_mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)
Definition: rv40dsp.c:270
CLIP_SYMM
#define CLIP_SYMM(a, b)
Definition: rv40dsp.c:426
rv40_bias
static const int rv40_bias[4][4]
Definition: rv40dsp.c:287
RV40_WEIGHT_FUNC
#define RV40_WEIGHT_FUNC(size)
Definition: rv40dsp.c:381
ff_rv40dsp_init_x86
void ff_rv40dsp_init_x86(RV34DSPContext *c)
Definition: rv40dsp_init.c:215
rv40_dither_l
static const uint8_t rv40_dither_l[16]
dither values for deblocking filter - left/top values
Definition: rv40dsp.c:413
rnd_avg.h
avg
#define avg(a, b, c, d)
Definition: colorspacedsp_template.c:28
rv40_h_loop_filter_strength
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:606
common.h
common internal and external API header
c
static double c[64]
Definition: vsrc_mptestsrc.c:87
RV34DSPContext::rv40_strong_loop_filter
rv40_strong_loop_filter_func rv40_strong_loop_filter[2]
Definition: rv34dsp.h:73
ff_crop_tab
#define ff_crop_tab
Definition: motionpixels_tablegen.c:26
rv40_v_loop_filter_strength
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:613
PIXOP2
#define PIXOP2(OPNAME, OP)
Definition: rv40dsp.c:210
diff
static av_always_inline int diff(const uint32_t a, const uint32_t b)
Definition: vf_palettegen.c:136
ARCH_AARCH64
#define ARCH_AARCH64
Definition: config.h:17
RV34DSPContext::avg_chroma_pixels_tab
h264_chroma_mc_func avg_chroma_pixels_tab[3]
Definition: rv34dsp.h:61
av_always_inline
#define av_always_inline
Definition: attributes.h:39
ff_h264qpel_init
av_cold void ff_h264qpel_init(H264QpelContext *c, int bit_depth)
Definition: h264qpel.c:49
RV34DSPContext::put_chroma_pixels_tab
h264_chroma_mc_func put_chroma_pixels_tab[3]
Definition: rv34dsp.h:60
RV40_CHROMA_MC
#define RV40_CHROMA_MC(OPNAME, OP)
Definition: rv40dsp.c:294
Generated on Tue May 22 2018 07:06:40 for FFmpeg by   doxygen 1.8.13