FFmpeg
cavsdsp.c
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1 /*
2  * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
3  *
4  * DSP functions
5  *
6  * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
7  *
8  * This file is part of FFmpeg.
9  *
10  * FFmpeg is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Lesser General Public
12  * License as published by the Free Software Foundation; either
13  * version 2.1 of the License, or (at your option) any later version.
14  *
15  * FFmpeg is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18  * Lesser General Public License for more details.
19  *
20  * You should have received a copy of the GNU Lesser General Public
21  * License along with FFmpeg; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23  */
24 
25 #include "idctdsp.h"
26 #include "mathops.h"
27 #include "cavsdsp.h"
28 #include "libavutil/common.h"
29 
30 /*****************************************************************************
31  *
32  * in-loop deblocking filter
33  *
34  ****************************************************************************/
35 
36 #define P2 p0_p[-3*stride]
37 #define P1 p0_p[-2*stride]
38 #define P0 p0_p[-1*stride]
39 #define Q0 p0_p[ 0*stride]
40 #define Q1 p0_p[ 1*stride]
41 #define Q2 p0_p[ 2*stride]
42 
43 static inline void loop_filter_l2(uint8_t *p0_p, ptrdiff_t stride, int alpha, int beta)
44 {
45  int p0 = P0;
46  int q0 = Q0;
47 
48  if(abs(p0-q0)<alpha && abs(P1-p0)<beta && abs(Q1-q0)<beta) {
49  int s = p0 + q0 + 2;
50  alpha = (alpha>>2) + 2;
51  if(abs(P2-p0) < beta && abs(p0-q0) < alpha) {
52  P0 = (P1 + p0 + s) >> 2;
53  P1 = (2*P1 + s) >> 2;
54  } else
55  P0 = (2*P1 + s) >> 2;
56  if(abs(Q2-q0) < beta && abs(q0-p0) < alpha) {
57  Q0 = (Q1 + q0 + s) >> 2;
58  Q1 = (2*Q1 + s) >> 2;
59  } else
60  Q0 = (2*Q1 + s) >> 2;
61  }
62 }
63 
64 static inline void loop_filter_l1(uint8_t *p0_p, ptrdiff_t stride, int alpha, int beta, int tc)
65 {
66  int p0 = P0;
67  int q0 = Q0;
68 
69  if(abs(p0-q0)<alpha && abs(P1-p0)<beta && abs(Q1-q0)<beta) {
70  int delta = av_clip(((q0-p0)*3+P1-Q1+4)>>3,-tc, tc);
71  P0 = av_clip_uint8(p0+delta);
72  Q0 = av_clip_uint8(q0-delta);
73  if(abs(P2-p0)<beta) {
74  delta = av_clip(((P0-P1)*3+P2-Q0+4)>>3, -tc, tc);
75  P1 = av_clip_uint8(P1+delta);
76  }
77  if(abs(Q2-q0)<beta) {
78  delta = av_clip(((Q1-Q0)*3+P0-Q2+4)>>3, -tc, tc);
79  Q1 = av_clip_uint8(Q1-delta);
80  }
81  }
82 }
83 
84 static inline void loop_filter_c2(uint8_t *p0_p, ptrdiff_t stride, int alpha, int beta)
85 {
86  int p0 = P0;
87  int q0 = Q0;
88 
89  if(abs(p0-q0)<alpha && abs(P1-p0)<beta && abs(Q1-q0)<beta) {
90  int s = p0 + q0 + 2;
91  alpha = (alpha>>2) + 2;
92  if(abs(P2-p0) < beta && abs(p0-q0) < alpha) {
93  P0 = (P1 + p0 + s) >> 2;
94  } else
95  P0 = (2*P1 + s) >> 2;
96  if(abs(Q2-q0) < beta && abs(q0-p0) < alpha) {
97  Q0 = (Q1 + q0 + s) >> 2;
98  } else
99  Q0 = (2*Q1 + s) >> 2;
100  }
101 }
102 
103 static inline void loop_filter_c1(uint8_t *p0_p, ptrdiff_t stride, int alpha, int beta,
104  int tc)
105 {
106  if(abs(P0-Q0)<alpha && abs(P1-P0)<beta && abs(Q1-Q0)<beta) {
107  int delta = av_clip(((Q0-P0)*3+P1-Q1+4)>>3, -tc, tc);
108  P0 = av_clip_uint8(P0+delta);
109  Q0 = av_clip_uint8(Q0-delta);
110  }
111 }
112 
113 #undef P0
114 #undef P1
115 #undef P2
116 #undef Q0
117 #undef Q1
118 #undef Q2
119 
120 static void cavs_filter_lv_c(uint8_t *d, ptrdiff_t stride, int alpha, int beta, int tc,
121  int bs1, int bs2)
122 {
123  int i;
124  if(bs1==2)
125  for(i=0;i<16;i++)
126  loop_filter_l2(d + i*stride,1,alpha,beta);
127  else {
128  if(bs1)
129  for(i=0;i<8;i++)
130  loop_filter_l1(d + i*stride,1,alpha,beta,tc);
131  if (bs2)
132  for(i=8;i<16;i++)
133  loop_filter_l1(d + i*stride,1,alpha,beta,tc);
134  }
135 }
136 
137 static void cavs_filter_lh_c(uint8_t *d, ptrdiff_t stride, int alpha, int beta, int tc,
138  int bs1, int bs2)
139 {
140  int i;
141  if(bs1==2)
142  for(i=0;i<16;i++)
143  loop_filter_l2(d + i,stride,alpha,beta);
144  else {
145  if(bs1)
146  for(i=0;i<8;i++)
147  loop_filter_l1(d + i,stride,alpha,beta,tc);
148  if (bs2)
149  for(i=8;i<16;i++)
150  loop_filter_l1(d + i,stride,alpha,beta,tc);
151  }
152 }
153 
154 static void cavs_filter_cv_c(uint8_t *d, ptrdiff_t stride, int alpha, int beta, int tc,
155  int bs1, int bs2)
156 {
157  int i;
158  if(bs1==2)
159  for(i=0;i<8;i++)
160  loop_filter_c2(d + i*stride,1,alpha,beta);
161  else {
162  if(bs1)
163  for(i=0;i<4;i++)
164  loop_filter_c1(d + i*stride,1,alpha,beta,tc);
165  if (bs2)
166  for(i=4;i<8;i++)
167  loop_filter_c1(d + i*stride,1,alpha,beta,tc);
168  }
169 }
170 
171 static void cavs_filter_ch_c(uint8_t *d, ptrdiff_t stride, int alpha, int beta, int tc,
172  int bs1, int bs2)
173 {
174  int i;
175  if(bs1==2)
176  for(i=0;i<8;i++)
177  loop_filter_c2(d + i,stride,alpha,beta);
178  else {
179  if(bs1)
180  for(i=0;i<4;i++)
181  loop_filter_c1(d + i,stride,alpha,beta,tc);
182  if (bs2)
183  for(i=4;i<8;i++)
184  loop_filter_c1(d + i,stride,alpha,beta,tc);
185  }
186 }
187 
188 /*****************************************************************************
189  *
190  * inverse transform
191  *
192  ****************************************************************************/
193 
194 static void cavs_idct8_add_c(uint8_t *dst, int16_t *block, ptrdiff_t stride)
195 {
196  int i;
197  int16_t (*src)[8] = (int16_t(*)[8])block;
198 
199  src[0][0] += 8;
200 
201  for( i = 0; i < 8; i++ ) {
202  const int a0 = 3 * src[i][1] - 2 * src[i][7];
203  const int a1 = 3 * src[i][3] + 2 * src[i][5];
204  const int a2 = 2 * src[i][3] - 3 * src[i][5];
205  const int a3 = 2 * src[i][1] + 3 * src[i][7];
206 
207  const int b4 = 2 * (a0 + a1 + a3) + a1;
208  const int b5 = 2 * (a0 - a1 + a2) + a0;
209  const int b6 = 2 * (a3 - a2 - a1) + a3;
210  const int b7 = 2 * (a0 - a2 - a3) - a2;
211 
212  const int a7 = 4 * src[i][2] - 10 * src[i][6];
213  const int a6 = 4 * src[i][6] + 10 * src[i][2];
214  const int a5 = 8 * (src[i][0] - src[i][4]) + 4;
215  const int a4 = 8 * (src[i][0] + src[i][4]) + 4;
216 
217  const int b0 = a4 + a6;
218  const int b1 = a5 + a7;
219  const int b2 = a5 - a7;
220  const int b3 = a4 - a6;
221 
222  src[i][0] = (b0 + b4) >> 3;
223  src[i][1] = (b1 + b5) >> 3;
224  src[i][2] = (b2 + b6) >> 3;
225  src[i][3] = (b3 + b7) >> 3;
226  src[i][4] = (b3 - b7) >> 3;
227  src[i][5] = (b2 - b6) >> 3;
228  src[i][6] = (b1 - b5) >> 3;
229  src[i][7] = (b0 - b4) >> 3;
230  }
231  for( i = 0; i < 8; i++ ) {
232  const int a0 = 3 * src[1][i] - 2 * src[7][i];
233  const int a1 = 3 * src[3][i] + 2 * src[5][i];
234  const int a2 = 2 * src[3][i] - 3 * src[5][i];
235  const int a3 = 2 * src[1][i] + 3 * src[7][i];
236 
237  const int b4 = 2 * (a0 + a1 + a3) + a1;
238  const int b5 = 2 * (a0 - a1 + a2) + a0;
239  const int b6 = 2 * (a3 - a2 - a1) + a3;
240  const int b7 = 2 * (a0 - a2 - a3) - a2;
241 
242  const int a7 = 4 * src[2][i] - 10 * src[6][i];
243  const int a6 = 4 * src[6][i] + 10 * src[2][i];
244  const int a5 = 8 * (src[0][i] - src[4][i]);
245  const int a4 = 8 * (src[0][i] + src[4][i]);
246 
247  const int b0 = a4 + a6;
248  const int b1 = a5 + a7;
249  const int b2 = a5 - a7;
250  const int b3 = a4 - a6;
251 
252  dst[i + 0*stride] = av_clip_uint8( dst[i + 0*stride] + ((b0 + b4) >> 7));
253  dst[i + 1*stride] = av_clip_uint8( dst[i + 1*stride] + ((b1 + b5) >> 7));
254  dst[i + 2*stride] = av_clip_uint8( dst[i + 2*stride] + ((b2 + b6) >> 7));
255  dst[i + 3*stride] = av_clip_uint8( dst[i + 3*stride] + ((b3 + b7) >> 7));
256  dst[i + 4*stride] = av_clip_uint8( dst[i + 4*stride] + ((b3 - b7) >> 7));
257  dst[i + 5*stride] = av_clip_uint8( dst[i + 5*stride] + ((b2 - b6) >> 7));
258  dst[i + 6*stride] = av_clip_uint8( dst[i + 6*stride] + ((b1 - b5) >> 7));
259  dst[i + 7*stride] = av_clip_uint8( dst[i + 7*stride] + ((b0 - b4) >> 7));
260  }
261 }
262 
263 /*****************************************************************************
264  *
265  * motion compensation
266  *
267  ****************************************************************************/
268 
269 #define CAVS_SUBPIX(OPNAME, OP, NAME, A, B, C, D, E, F) \
270 static void OPNAME ## cavs_filt8_h_ ## NAME(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
271 { \
272  const int h=8;\
273  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
274  int i;\
275  for(i=0; i<h; i++)\
276  {\
277  OP(dst[0], A*src[-2] + B*src[-1] + C*src[0] + D*src[1] + E*src[2] + F*src[3]);\
278  OP(dst[1], A*src[-1] + B*src[ 0] + C*src[1] + D*src[2] + E*src[3] + F*src[4]);\
279  OP(dst[2], A*src[ 0] + B*src[ 1] + C*src[2] + D*src[3] + E*src[4] + F*src[5]);\
280  OP(dst[3], A*src[ 1] + B*src[ 2] + C*src[3] + D*src[4] + E*src[5] + F*src[6]);\
281  OP(dst[4], A*src[ 2] + B*src[ 3] + C*src[4] + D*src[5] + E*src[6] + F*src[7]);\
282  OP(dst[5], A*src[ 3] + B*src[ 4] + C*src[5] + D*src[6] + E*src[7] + F*src[8]);\
283  OP(dst[6], A*src[ 4] + B*src[ 5] + C*src[6] + D*src[7] + E*src[8] + F*src[9]);\
284  OP(dst[7], A*src[ 5] + B*src[ 6] + C*src[7] + D*src[8] + E*src[9] + F*src[10]);\
285  dst+=dstStride;\
286  src+=srcStride;\
287  }\
288 }\
289 \
290 static void OPNAME ## cavs_filt8_v_ ## NAME(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
291 { \
292  const int w=8;\
293  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
294  int i;\
295  for(i=0; i<w; i++)\
296  {\
297  const int srcB= src[-2*srcStride];\
298  const int srcA= src[-1*srcStride];\
299  const int src0= src[0 *srcStride];\
300  const int src1= src[1 *srcStride];\
301  const int src2= src[2 *srcStride];\
302  const int src3= src[3 *srcStride];\
303  const int src4= src[4 *srcStride];\
304  const int src5= src[5 *srcStride];\
305  const int src6= src[6 *srcStride];\
306  const int src7= src[7 *srcStride];\
307  const int src8= src[8 *srcStride];\
308  const int src9= src[9 *srcStride];\
309  const int src10= src[10 *srcStride];\
310  OP(dst[0*dstStride], A*srcB + B*srcA + C*src0 + D*src1 + E*src2 + F*src3);\
311  OP(dst[1*dstStride], A*srcA + B*src0 + C*src1 + D*src2 + E*src3 + F*src4);\
312  OP(dst[2*dstStride], A*src0 + B*src1 + C*src2 + D*src3 + E*src4 + F*src5);\
313  OP(dst[3*dstStride], A*src1 + B*src2 + C*src3 + D*src4 + E*src5 + F*src6);\
314  OP(dst[4*dstStride], A*src2 + B*src3 + C*src4 + D*src5 + E*src6 + F*src7);\
315  OP(dst[5*dstStride], A*src3 + B*src4 + C*src5 + D*src6 + E*src7 + F*src8);\
316  OP(dst[6*dstStride], A*src4 + B*src5 + C*src6 + D*src7 + E*src8 + F*src9);\
317  OP(dst[7*dstStride], A*src5 + B*src6 + C*src7 + D*src8 + E*src9 + F*src10);\
318  dst++;\
319  src++;\
320  }\
321 }\
322 \
323 static void OPNAME ## cavs_filt16_v_ ## NAME(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
324 { \
325  OPNAME ## cavs_filt8_v_ ## NAME(dst , src , dstStride, srcStride);\
326  OPNAME ## cavs_filt8_v_ ## NAME(dst+8, src+8, dstStride, srcStride);\
327  src += 8*srcStride;\
328  dst += 8*dstStride;\
329  OPNAME ## cavs_filt8_v_ ## NAME(dst , src , dstStride, srcStride);\
330  OPNAME ## cavs_filt8_v_ ## NAME(dst+8, src+8, dstStride, srcStride);\
331 }\
332 \
333 static void OPNAME ## cavs_filt16_h_ ## NAME(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride)\
334 { \
335  OPNAME ## cavs_filt8_h_ ## NAME(dst , src , dstStride, srcStride);\
336  OPNAME ## cavs_filt8_h_ ## NAME(dst+8, src+8, dstStride, srcStride);\
337  src += 8*srcStride;\
338  dst += 8*dstStride;\
339  OPNAME ## cavs_filt8_h_ ## NAME(dst , src , dstStride, srcStride);\
340  OPNAME ## cavs_filt8_h_ ## NAME(dst+8, src+8, dstStride, srcStride);\
341 }\
342 
343 #define CAVS_SUBPIX_HV(OPNAME, OP, NAME, AH, BH, CH, DH, EH, FH, AV, BV, CV, DV, EV, FV, FULL) \
344 static void OPNAME ## cavs_filt8_hv_ ## NAME(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, ptrdiff_t dstStride, ptrdiff_t srcStride)\
345 { \
346  int16_t temp[8*(8+5)];\
347  int16_t *tmp = temp;\
348  const int h=8;\
349  const int w=8;\
350  const uint8_t *cm = ff_crop_tab + MAX_NEG_CROP;\
351  int i;\
352  src1 -= 2*srcStride;\
353  for(i=0; i<h+5; i++)\
354  {\
355  tmp[0]= AH*src1[-2] + BH*src1[-1] + CH*src1[0] + DH*src1[1] + EH*src1[2] + FH*src1[3];\
356  tmp[1]= AH*src1[-1] + BH*src1[ 0] + CH*src1[1] + DH*src1[2] + EH*src1[3] + FH*src1[4];\
357  tmp[2]= AH*src1[ 0] + BH*src1[ 1] + CH*src1[2] + DH*src1[3] + EH*src1[4] + FH*src1[5];\
358  tmp[3]= AH*src1[ 1] + BH*src1[ 2] + CH*src1[3] + DH*src1[4] + EH*src1[5] + FH*src1[6];\
359  tmp[4]= AH*src1[ 2] + BH*src1[ 3] + CH*src1[4] + DH*src1[5] + EH*src1[6] + FH*src1[7];\
360  tmp[5]= AH*src1[ 3] + BH*src1[ 4] + CH*src1[5] + DH*src1[6] + EH*src1[7] + FH*src1[8];\
361  tmp[6]= AH*src1[ 4] + BH*src1[ 5] + CH*src1[6] + DH*src1[7] + EH*src1[8] + FH*src1[9];\
362  tmp[7]= AH*src1[ 5] + BH*src1[ 6] + CH*src1[7] + DH*src1[8] + EH*src1[9] + FH*src1[10];\
363  tmp+=8;\
364  src1+=srcStride;\
365  }\
366  if(FULL) {\
367  tmp = temp+8*2; \
368  for(i=0; i<w; i++) \
369  { \
370  const int tmpB= tmp[-2*8]; \
371  const int tmpA= tmp[-1*8]; \
372  const int tmp0= tmp[0 *8]; \
373  const int tmp1= tmp[1 *8]; \
374  const int tmp2= tmp[2 *8]; \
375  const int tmp3= tmp[3 *8]; \
376  const int tmp4= tmp[4 *8]; \
377  const int tmp5= tmp[5 *8]; \
378  const int tmp6= tmp[6 *8]; \
379  const int tmp7= tmp[7 *8]; \
380  const int tmp8= tmp[8 *8]; \
381  const int tmp9= tmp[9 *8]; \
382  const int tmp10=tmp[10*8]; \
383  OP(dst[0*dstStride], AV*tmpB + BV*tmpA + CV*tmp0 + DV*tmp1 + EV*tmp2 + FV*tmp3 + 64*src2[0*srcStride]); \
384  OP(dst[1*dstStride], AV*tmpA + BV*tmp0 + CV*tmp1 + DV*tmp2 + EV*tmp3 + FV*tmp4 + 64*src2[1*srcStride]); \
385  OP(dst[2*dstStride], AV*tmp0 + BV*tmp1 + CV*tmp2 + DV*tmp3 + EV*tmp4 + FV*tmp5 + 64*src2[2*srcStride]); \
386  OP(dst[3*dstStride], AV*tmp1 + BV*tmp2 + CV*tmp3 + DV*tmp4 + EV*tmp5 + FV*tmp6 + 64*src2[3*srcStride]); \
387  OP(dst[4*dstStride], AV*tmp2 + BV*tmp3 + CV*tmp4 + DV*tmp5 + EV*tmp6 + FV*tmp7 + 64*src2[4*srcStride]); \
388  OP(dst[5*dstStride], AV*tmp3 + BV*tmp4 + CV*tmp5 + DV*tmp6 + EV*tmp7 + FV*tmp8 + 64*src2[5*srcStride]); \
389  OP(dst[6*dstStride], AV*tmp4 + BV*tmp5 + CV*tmp6 + DV*tmp7 + EV*tmp8 + FV*tmp9 + 64*src2[6*srcStride]); \
390  OP(dst[7*dstStride], AV*tmp5 + BV*tmp6 + CV*tmp7 + DV*tmp8 + EV*tmp9 + FV*tmp10 + 64*src2[7*srcStride]); \
391  dst++; \
392  tmp++; \
393  src2++; \
394  } \
395  } else {\
396  tmp = temp+8*2; \
397  for(i=0; i<w; i++) \
398  { \
399  const int tmpB= tmp[-2*8]; \
400  const int tmpA= tmp[-1*8]; \
401  const int tmp0= tmp[0 *8]; \
402  const int tmp1= tmp[1 *8]; \
403  const int tmp2= tmp[2 *8]; \
404  const int tmp3= tmp[3 *8]; \
405  const int tmp4= tmp[4 *8]; \
406  const int tmp5= tmp[5 *8]; \
407  const int tmp6= tmp[6 *8]; \
408  const int tmp7= tmp[7 *8]; \
409  const int tmp8= tmp[8 *8]; \
410  const int tmp9= tmp[9 *8]; \
411  const int tmp10=tmp[10*8]; \
412  OP(dst[0*dstStride], AV*tmpB + BV*tmpA + CV*tmp0 + DV*tmp1 + EV*tmp2 + FV*tmp3); \
413  OP(dst[1*dstStride], AV*tmpA + BV*tmp0 + CV*tmp1 + DV*tmp2 + EV*tmp3 + FV*tmp4); \
414  OP(dst[2*dstStride], AV*tmp0 + BV*tmp1 + CV*tmp2 + DV*tmp3 + EV*tmp4 + FV*tmp5); \
415  OP(dst[3*dstStride], AV*tmp1 + BV*tmp2 + CV*tmp3 + DV*tmp4 + EV*tmp5 + FV*tmp6); \
416  OP(dst[4*dstStride], AV*tmp2 + BV*tmp3 + CV*tmp4 + DV*tmp5 + EV*tmp6 + FV*tmp7); \
417  OP(dst[5*dstStride], AV*tmp3 + BV*tmp4 + CV*tmp5 + DV*tmp6 + EV*tmp7 + FV*tmp8); \
418  OP(dst[6*dstStride], AV*tmp4 + BV*tmp5 + CV*tmp6 + DV*tmp7 + EV*tmp8 + FV*tmp9); \
419  OP(dst[7*dstStride], AV*tmp5 + BV*tmp6 + CV*tmp7 + DV*tmp8 + EV*tmp9 + FV*tmp10); \
420  dst++; \
421  tmp++; \
422  } \
423  }\
424 }\
425 \
426 static void OPNAME ## cavs_filt16_hv_ ## NAME(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, ptrdiff_t dstStride, ptrdiff_t srcStride)\
427 { \
428  OPNAME ## cavs_filt8_hv_ ## NAME(dst , src1, FULL ? src2 : NULL, dstStride, srcStride); \
429  OPNAME ## cavs_filt8_hv_ ## NAME(dst+8, src1+8, FULL ? src2 + 8 : NULL, dstStride, srcStride); \
430  src1 += 8*srcStride;\
431  if (FULL) \
432  src2 += 8*srcStride;\
433  dst += 8*dstStride;\
434  OPNAME ## cavs_filt8_hv_ ## NAME(dst , src1, FULL ? src2 : NULL, dstStride, srcStride); \
435  OPNAME ## cavs_filt8_hv_ ## NAME(dst+8, src1+8, FULL ? src2 + 8 : NULL, dstStride, srcStride); \
436 }\
437 
438 #define CAVS_MC(OPNAME, SIZE) \
439 static void OPNAME ## cavs_qpel ## SIZE ## _mc10_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
440 {\
441  OPNAME ## cavs_filt ## SIZE ## _h_qpel_l(dst, src, stride, stride);\
442 }\
443 \
444 static void OPNAME ## cavs_qpel ## SIZE ## _mc20_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
445 {\
446  OPNAME ## cavs_filt ## SIZE ## _h_hpel(dst, src, stride, stride);\
447 }\
448 \
449 static void OPNAME ## cavs_qpel ## SIZE ## _mc30_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
450 {\
451  OPNAME ## cavs_filt ## SIZE ## _h_qpel_r(dst, src, stride, stride);\
452 }\
453 \
454 static void OPNAME ## cavs_qpel ## SIZE ## _mc01_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
455 {\
456  OPNAME ## cavs_filt ## SIZE ## _v_qpel_l(dst, src, stride, stride);\
457 }\
458 \
459 static void OPNAME ## cavs_qpel ## SIZE ## _mc02_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
460 {\
461  OPNAME ## cavs_filt ## SIZE ## _v_hpel(dst, src, stride, stride);\
462 }\
463 \
464 static void OPNAME ## cavs_qpel ## SIZE ## _mc03_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
465 {\
466  OPNAME ## cavs_filt ## SIZE ## _v_qpel_r(dst, src, stride, stride);\
467 }\
468 \
469 static void OPNAME ## cavs_qpel ## SIZE ## _mc22_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
470 {\
471  OPNAME ## cavs_filt ## SIZE ## _hv_jj(dst, src, NULL, stride, stride); \
472 }\
473 \
474 static void OPNAME ## cavs_qpel ## SIZE ## _mc11_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
475 {\
476  OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src, stride, stride); \
477 }\
478 \
479 static void OPNAME ## cavs_qpel ## SIZE ## _mc13_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
480 {\
481  OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src+stride, stride, stride); \
482 }\
483 \
484 static void OPNAME ## cavs_qpel ## SIZE ## _mc31_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
485 {\
486  OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src+1, stride, stride); \
487 }\
488 \
489 static void OPNAME ## cavs_qpel ## SIZE ## _mc33_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
490 {\
491  OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src+stride+1,stride, stride); \
492 }\
493 \
494 static void OPNAME ## cavs_qpel ## SIZE ## _mc21_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
495 {\
496  OPNAME ## cavs_filt ## SIZE ## _hv_ff(dst, src, NULL, stride, stride); \
497 }\
498 \
499 static void OPNAME ## cavs_qpel ## SIZE ## _mc12_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
500 {\
501  OPNAME ## cavs_filt ## SIZE ## _hv_ii(dst, src, NULL, stride, stride); \
502 }\
503 \
504 static void OPNAME ## cavs_qpel ## SIZE ## _mc32_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
505 {\
506  OPNAME ## cavs_filt ## SIZE ## _hv_kk(dst, src, NULL, stride, stride); \
507 }\
508 \
509 static void OPNAME ## cavs_qpel ## SIZE ## _mc23_c(uint8_t *dst, const uint8_t *src, ptrdiff_t stride)\
510 {\
511  OPNAME ## cavs_filt ## SIZE ## _hv_qq(dst, src, NULL, stride, stride); \
512 }\
513 
514 #define op_put1(a, b) a = cm[((b)+4)>>3]
515 #define op_put2(a, b) a = cm[((b)+64)>>7]
516 #define op_put3(a, b) a = cm[((b)+32)>>6]
517 #define op_put4(a, b) a = cm[((b)+512)>>10]
518 #define op_avg1(a, b) a = ((a)+cm[((b)+4)>>3] +1)>>1
519 #define op_avg2(a, b) a = ((a)+cm[((b)+64)>>7] +1)>>1
520 #define op_avg3(a, b) a = ((a)+cm[((b)+32)>>6] +1)>>1
521 #define op_avg4(a, b) a = ((a)+cm[((b)+512)>>10]+1)>>1
522 CAVS_SUBPIX(put_ , op_put1, hpel, 0, -1, 5, 5, -1, 0)
523 CAVS_SUBPIX(put_ , op_put2, qpel_l, -1, -2, 96, 42, -7, 0)
524 CAVS_SUBPIX(put_ , op_put2, qpel_r, 0, -7, 42, 96, -2, -1)
525 CAVS_SUBPIX_HV(put_, op_put3, jj, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 0)
526 CAVS_SUBPIX_HV(put_, op_put4, ff, 0, -1, 5, 5, -1, 0, -1, -2, 96, 42, -7, 0, 0)
527 CAVS_SUBPIX_HV(put_, op_put4, ii, -1, -2, 96, 42, -7, 0, 0, -1, 5, 5, -1, 0, 0)
528 CAVS_SUBPIX_HV(put_, op_put4, kk, 0, -7, 42, 96, -2, -1, 0, -1, 5, 5, -1, 0, 0)
529 CAVS_SUBPIX_HV(put_, op_put4, qq, 0, -1, 5, 5, -1, 0, 0, -7, 42, 96, -2,-1, 0)
530 CAVS_SUBPIX_HV(put_, op_put2, egpr, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 1)
531 CAVS_SUBPIX(avg_ , op_avg1, hpel, 0, -1, 5, 5, -1, 0)
532 CAVS_SUBPIX(avg_ , op_avg2, qpel_l, -1, -2, 96, 42, -7, 0)
533 CAVS_SUBPIX(avg_ , op_avg2, qpel_r, 0, -7, 42, 96, -2, -1)
534 CAVS_SUBPIX_HV(avg_, op_avg3, jj, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 0)
535 CAVS_SUBPIX_HV(avg_, op_avg4, ff, 0, -1, 5, 5, -1, 0, -1, -2, 96, 42, -7, 0, 0)
536 CAVS_SUBPIX_HV(avg_, op_avg4, ii, -1, -2, 96, 42, -7, 0, 0, -1, 5, 5, -1, 0, 0)
537 CAVS_SUBPIX_HV(avg_, op_avg4, kk, 0, -7, 42, 96, -2, -1, 0, -1, 5, 5, -1, 0, 0)
538 CAVS_SUBPIX_HV(avg_, op_avg4, qq, 0, -1, 5, 5, -1, 0, 0, -7, 42, 96, -2,-1, 0)
539 CAVS_SUBPIX_HV(avg_, op_avg2, egpr, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 1)
540 CAVS_MC(put_, 8)
541 CAVS_MC(put_, 16)
542 CAVS_MC(avg_, 8)
543 CAVS_MC(avg_, 16)
544 
545 #define put_cavs_qpel8_mc00_c ff_put_pixels8x8_c
546 #define avg_cavs_qpel8_mc00_c ff_avg_pixels8x8_c
547 #define put_cavs_qpel16_mc00_c ff_put_pixels16x16_c
548 #define avg_cavs_qpel16_mc00_c ff_avg_pixels16x16_c
549 
550 av_cold void ff_cavsdsp_init(CAVSDSPContext* c)
551 {
552 #define dspfunc(PFX, IDX, NUM) \
553  c->PFX ## _pixels_tab[IDX][ 0] = PFX ## NUM ## _mc00_c; \
554  c->PFX ## _pixels_tab[IDX][ 1] = PFX ## NUM ## _mc10_c; \
555  c->PFX ## _pixels_tab[IDX][ 2] = PFX ## NUM ## _mc20_c; \
556  c->PFX ## _pixels_tab[IDX][ 3] = PFX ## NUM ## _mc30_c; \
557  c->PFX ## _pixels_tab[IDX][ 4] = PFX ## NUM ## _mc01_c; \
558  c->PFX ## _pixels_tab[IDX][ 5] = PFX ## NUM ## _mc11_c; \
559  c->PFX ## _pixels_tab[IDX][ 6] = PFX ## NUM ## _mc21_c; \
560  c->PFX ## _pixels_tab[IDX][ 7] = PFX ## NUM ## _mc31_c; \
561  c->PFX ## _pixels_tab[IDX][ 8] = PFX ## NUM ## _mc02_c; \
562  c->PFX ## _pixels_tab[IDX][ 9] = PFX ## NUM ## _mc12_c; \
563  c->PFX ## _pixels_tab[IDX][10] = PFX ## NUM ## _mc22_c; \
564  c->PFX ## _pixels_tab[IDX][11] = PFX ## NUM ## _mc32_c; \
565  c->PFX ## _pixels_tab[IDX][12] = PFX ## NUM ## _mc03_c; \
566  c->PFX ## _pixels_tab[IDX][13] = PFX ## NUM ## _mc13_c; \
567  c->PFX ## _pixels_tab[IDX][14] = PFX ## NUM ## _mc23_c; \
568  c->PFX ## _pixels_tab[IDX][15] = PFX ## NUM ## _mc33_c
569  dspfunc(put_cavs_qpel, 0, 16);
570  dspfunc(put_cavs_qpel, 1, 8);
571  dspfunc(avg_cavs_qpel, 0, 16);
572  dspfunc(avg_cavs_qpel, 1, 8);
573  c->cavs_filter_lv = cavs_filter_lv_c;
574  c->cavs_filter_lh = cavs_filter_lh_c;
575  c->cavs_filter_cv = cavs_filter_cv_c;
576  c->cavs_filter_ch = cavs_filter_ch_c;
577  c->cavs_idct8_add = cavs_idct8_add_c;
578  c->idct_perm = FF_IDCT_PERM_NONE;
579 
580 #if ARCH_X86
581  ff_cavsdsp_init_x86(c);
582 #endif
583 }
Q0
#define Q0
Definition: cavsdsp.c:39
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Definition: cavsdsp.c:521
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Definition: common.h:98
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Definition: cavsdsp.c:120
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c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
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Definition: cavsdsp.c:438
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Definition: cavsdsp.c:137
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Definition: cavsdsp.c:517
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Definition: filter_design.txt:207
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Definition: regdef.h:49
cavsdsp.h
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