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postprocess.c
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1 /*
2  * Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at)
3  *
4  * AltiVec optimizations (C) 2004 Romain Dolbeau <romain@dolbeau.org>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * postprocessing.
26  */
27 
28 /*
29  C MMX MMX2 3DNow AltiVec
30 isVertDC Ec Ec Ec
31 isVertMinMaxOk Ec Ec Ec
32 doVertLowPass E e e Ec
33 doVertDefFilter Ec Ec e e Ec
34 isHorizDC Ec Ec Ec
35 isHorizMinMaxOk a E Ec
36 doHorizLowPass E e e Ec
37 doHorizDefFilter Ec Ec e e Ec
38 do_a_deblock Ec E Ec E
39 deRing E e e* Ecp
40 Vertical RKAlgo1 E a a
41 Horizontal RKAlgo1 a a
42 Vertical X1# a E E
43 Horizontal X1# a E E
44 LinIpolDeinterlace e E E*
45 CubicIpolDeinterlace a e e*
46 LinBlendDeinterlace e E E*
47 MedianDeinterlace# E Ec Ec
48 TempDeNoiser# E e e Ec
49 
50 * I do not have a 3DNow! CPU -> it is untested, but no one said it does not work so it seems to work
51 # more or less selfinvented filters so the exactness is not too meaningful
52 E = Exact implementation
53 e = almost exact implementation (slightly different rounding,...)
54 a = alternative / approximate impl
55 c = checked against the other implementations (-vo md5)
56 p = partially optimized, still some work to do
57 */
58 
59 /*
60 TODO:
61 reduce the time wasted on the mem transfer
62 unroll stuff if instructions depend too much on the prior one
63 move YScale thing to the end instead of fixing QP
64 write a faster and higher quality deblocking filter :)
65 make the mainloop more flexible (variable number of blocks at once
66  (the if/else stuff per block is slowing things down)
67 compare the quality & speed of all filters
68 split this huge file
69 optimize c versions
70 try to unroll inner for(x=0 ... loop to avoid these damn if(x ... checks
71 ...
72 */
73 
74 //Changelog: use git log
75 
76 #include "config.h"
77 #include "libavutil/avutil.h"
78 #include "libavutil/avassert.h"
79 #include <inttypes.h>
80 #include <stdio.h>
81 #include <stdlib.h>
82 #include <string.h>
83 //#undef HAVE_MMXEXT_INLINE
84 //#define HAVE_AMD3DNOW_INLINE
85 //#undef HAVE_MMX_INLINE
86 //#undef ARCH_X86
87 //#define DEBUG_BRIGHTNESS
88 #include "postprocess.h"
89 #include "postprocess_internal.h"
90 #include "libavutil/avstring.h"
91 
92 unsigned postproc_version(void)
93 {
94  av_assert0(LIBPOSTPROC_VERSION_MICRO >= 100);
95  return LIBPOSTPROC_VERSION_INT;
96 }
97 
98 const char *postproc_configuration(void)
99 {
100  return FFMPEG_CONFIGURATION;
101 }
102 
103 const char *postproc_license(void)
104 {
105 #define LICENSE_PREFIX "libpostproc license: "
106  return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
107 }
108 
109 #if HAVE_ALTIVEC_H
110 #include <altivec.h>
111 #endif
112 
113 #define GET_MODE_BUFFER_SIZE 500
114 #define OPTIONS_ARRAY_SIZE 10
115 #define BLOCK_SIZE 8
116 #define TEMP_STRIDE 8
117 //#define NUM_BLOCKS_AT_ONCE 16 //not used yet
118 
119 #if ARCH_X86 && HAVE_INLINE_ASM
120 DECLARE_ASM_CONST(8, uint64_t, w05)= 0x0005000500050005LL;
121 DECLARE_ASM_CONST(8, uint64_t, w04)= 0x0004000400040004LL;
122 DECLARE_ASM_CONST(8, uint64_t, w20)= 0x0020002000200020LL;
123 DECLARE_ASM_CONST(8, uint64_t, b00)= 0x0000000000000000LL;
124 DECLARE_ASM_CONST(8, uint64_t, b01)= 0x0101010101010101LL;
125 DECLARE_ASM_CONST(8, uint64_t, b02)= 0x0202020202020202LL;
126 DECLARE_ASM_CONST(8, uint64_t, b08)= 0x0808080808080808LL;
127 DECLARE_ASM_CONST(8, uint64_t, b80)= 0x8080808080808080LL;
128 #endif
129 
130 DECLARE_ASM_CONST(8, int, deringThreshold)= 20;
131 
132 
133 static const struct PPFilter filters[]=
134 {
135  {"hb", "hdeblock", 1, 1, 3, H_DEBLOCK},
136  {"vb", "vdeblock", 1, 2, 4, V_DEBLOCK},
137 /* {"hr", "rkhdeblock", 1, 1, 3, H_RK1_FILTER},
138  {"vr", "rkvdeblock", 1, 2, 4, V_RK1_FILTER},*/
139  {"h1", "x1hdeblock", 1, 1, 3, H_X1_FILTER},
140  {"v1", "x1vdeblock", 1, 2, 4, V_X1_FILTER},
141  {"ha", "ahdeblock", 1, 1, 3, H_A_DEBLOCK},
142  {"va", "avdeblock", 1, 2, 4, V_A_DEBLOCK},
143  {"dr", "dering", 1, 5, 6, DERING},
144  {"al", "autolevels", 0, 1, 2, LEVEL_FIX},
145  {"lb", "linblenddeint", 1, 1, 4, LINEAR_BLEND_DEINT_FILTER},
146  {"li", "linipoldeint", 1, 1, 4, LINEAR_IPOL_DEINT_FILTER},
147  {"ci", "cubicipoldeint", 1, 1, 4, CUBIC_IPOL_DEINT_FILTER},
148  {"md", "mediandeint", 1, 1, 4, MEDIAN_DEINT_FILTER},
149  {"fd", "ffmpegdeint", 1, 1, 4, FFMPEG_DEINT_FILTER},
150  {"l5", "lowpass5", 1, 1, 4, LOWPASS5_DEINT_FILTER},
151  {"tn", "tmpnoise", 1, 7, 8, TEMP_NOISE_FILTER},
152  {"fq", "forcequant", 1, 0, 0, FORCE_QUANT},
153  {"be", "bitexact", 1, 0, 0, BITEXACT},
154  {NULL, NULL,0,0,0,0} //End Marker
155 };
156 
157 static const char *replaceTable[]=
158 {
159  "default", "hb:a,vb:a,dr:a",
160  "de", "hb:a,vb:a,dr:a",
161  "fast", "h1:a,v1:a,dr:a",
162  "fa", "h1:a,v1:a,dr:a",
163  "ac", "ha:a:128:7,va:a,dr:a",
164  NULL //End Marker
165 };
166 
167 
168 #if ARCH_X86 && HAVE_INLINE_ASM
169 static inline void prefetchnta(void *p)
170 {
171  __asm__ volatile( "prefetchnta (%0)\n\t"
172  : : "r" (p)
173  );
174 }
175 
176 static inline void prefetcht0(void *p)
177 {
178  __asm__ volatile( "prefetcht0 (%0)\n\t"
179  : : "r" (p)
180  );
181 }
182 
183 static inline void prefetcht1(void *p)
184 {
185  __asm__ volatile( "prefetcht1 (%0)\n\t"
186  : : "r" (p)
187  );
188 }
189 
190 static inline void prefetcht2(void *p)
191 {
192  __asm__ volatile( "prefetcht2 (%0)\n\t"
193  : : "r" (p)
194  );
195 }
196 #endif
197 
198 /* The horizontal functions exist only in C because the MMX
199  * code is faster with vertical filters and transposing. */
200 
201 /**
202  * Check if the given 8x8 Block is mostly "flat"
203  */
204 static inline int isHorizDC_C(const uint8_t src[], int stride, const PPContext *c)
205 {
206  int numEq= 0;
207  int y;
208  const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
209  const int dcThreshold= dcOffset*2 + 1;
210 
211  for(y=0; y<BLOCK_SIZE; y++){
212  if(((unsigned)(src[0] - src[1] + dcOffset)) < dcThreshold) numEq++;
213  if(((unsigned)(src[1] - src[2] + dcOffset)) < dcThreshold) numEq++;
214  if(((unsigned)(src[2] - src[3] + dcOffset)) < dcThreshold) numEq++;
215  if(((unsigned)(src[3] - src[4] + dcOffset)) < dcThreshold) numEq++;
216  if(((unsigned)(src[4] - src[5] + dcOffset)) < dcThreshold) numEq++;
217  if(((unsigned)(src[5] - src[6] + dcOffset)) < dcThreshold) numEq++;
218  if(((unsigned)(src[6] - src[7] + dcOffset)) < dcThreshold) numEq++;
219  src+= stride;
220  }
221  return numEq > c->ppMode.flatnessThreshold;
222 }
223 
224 /**
225  * Check if the middle 8x8 Block in the given 8x16 block is flat
226  */
227 static inline int isVertDC_C(const uint8_t src[], int stride, const PPContext *c)
228 {
229  int numEq= 0;
230  int y;
231  const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
232  const int dcThreshold= dcOffset*2 + 1;
233 
234  src+= stride*4; // src points to begin of the 8x8 Block
235  for(y=0; y<BLOCK_SIZE-1; y++){
236  if(((unsigned)(src[0] - src[0+stride] + dcOffset)) < dcThreshold) numEq++;
237  if(((unsigned)(src[1] - src[1+stride] + dcOffset)) < dcThreshold) numEq++;
238  if(((unsigned)(src[2] - src[2+stride] + dcOffset)) < dcThreshold) numEq++;
239  if(((unsigned)(src[3] - src[3+stride] + dcOffset)) < dcThreshold) numEq++;
240  if(((unsigned)(src[4] - src[4+stride] + dcOffset)) < dcThreshold) numEq++;
241  if(((unsigned)(src[5] - src[5+stride] + dcOffset)) < dcThreshold) numEq++;
242  if(((unsigned)(src[6] - src[6+stride] + dcOffset)) < dcThreshold) numEq++;
243  if(((unsigned)(src[7] - src[7+stride] + dcOffset)) < dcThreshold) numEq++;
244  src+= stride;
245  }
246  return numEq > c->ppMode.flatnessThreshold;
247 }
248 
249 static inline int isHorizMinMaxOk_C(const uint8_t src[], int stride, int QP)
250 {
251  int i;
252  for(i=0; i<2; i++){
253  if((unsigned)(src[0] - src[5] + 2*QP) > 4*QP) return 0;
254  src += stride;
255  if((unsigned)(src[2] - src[7] + 2*QP) > 4*QP) return 0;
256  src += stride;
257  if((unsigned)(src[4] - src[1] + 2*QP) > 4*QP) return 0;
258  src += stride;
259  if((unsigned)(src[6] - src[3] + 2*QP) > 4*QP) return 0;
260  src += stride;
261  }
262  return 1;
263 }
264 
265 static inline int isVertMinMaxOk_C(const uint8_t src[], int stride, int QP)
266 {
267  int x;
268  src+= stride*4;
269  for(x=0; x<BLOCK_SIZE; x+=4){
270  if((unsigned)(src[ x + 0*stride] - src[ x + 5*stride] + 2*QP) > 4*QP) return 0;
271  if((unsigned)(src[1+x + 2*stride] - src[1+x + 7*stride] + 2*QP) > 4*QP) return 0;
272  if((unsigned)(src[2+x + 4*stride] - src[2+x + 1*stride] + 2*QP) > 4*QP) return 0;
273  if((unsigned)(src[3+x + 6*stride] - src[3+x + 3*stride] + 2*QP) > 4*QP) return 0;
274  }
275  return 1;
276 }
277 
278 static inline int horizClassify_C(const uint8_t src[], int stride, const PPContext *c)
279 {
280  if( isHorizDC_C(src, stride, c) ){
281  if( isHorizMinMaxOk_C(src, stride, c->QP) )
282  return 1;
283  else
284  return 0;
285  }else{
286  return 2;
287  }
288 }
289 
290 static inline int vertClassify_C(const uint8_t src[], int stride, const PPContext *c)
291 {
292  if( isVertDC_C(src, stride, c) ){
293  if( isVertMinMaxOk_C(src, stride, c->QP) )
294  return 1;
295  else
296  return 0;
297  }else{
298  return 2;
299  }
300 }
301 
302 static inline void doHorizDefFilter_C(uint8_t dst[], int stride, const PPContext *c)
303 {
304  int y;
305  for(y=0; y<BLOCK_SIZE; y++){
306  const int middleEnergy= 5*(dst[4] - dst[3]) + 2*(dst[2] - dst[5]);
307 
308  if(FFABS(middleEnergy) < 8*c->QP){
309  const int q=(dst[3] - dst[4])/2;
310  const int leftEnergy= 5*(dst[2] - dst[1]) + 2*(dst[0] - dst[3]);
311  const int rightEnergy= 5*(dst[6] - dst[5]) + 2*(dst[4] - dst[7]);
312 
313  int d= FFABS(middleEnergy) - FFMIN( FFABS(leftEnergy), FFABS(rightEnergy) );
314  d= FFMAX(d, 0);
315 
316  d= (5*d + 32) >> 6;
317  d*= FFSIGN(-middleEnergy);
318 
319  if(q>0)
320  {
321  d= d<0 ? 0 : d;
322  d= d>q ? q : d;
323  }
324  else
325  {
326  d= d>0 ? 0 : d;
327  d= d<q ? q : d;
328  }
329 
330  dst[3]-= d;
331  dst[4]+= d;
332  }
333  dst+= stride;
334  }
335 }
336 
337 /**
338  * Do a horizontal low pass filter on the 10x8 block (dst points to middle 8x8 Block)
339  * using the 9-Tap Filter (1,1,2,2,4,2,2,1,1)/16 (C version)
340  */
341 static inline void doHorizLowPass_C(uint8_t dst[], int stride, const PPContext *c)
342 {
343  int y;
344  for(y=0; y<BLOCK_SIZE; y++){
345  const int first= FFABS(dst[-1] - dst[0]) < c->QP ? dst[-1] : dst[0];
346  const int last= FFABS(dst[8] - dst[7]) < c->QP ? dst[8] : dst[7];
347 
348  int sums[10];
349  sums[0] = 4*first + dst[0] + dst[1] + dst[2] + 4;
350  sums[1] = sums[0] - first + dst[3];
351  sums[2] = sums[1] - first + dst[4];
352  sums[3] = sums[2] - first + dst[5];
353  sums[4] = sums[3] - first + dst[6];
354  sums[5] = sums[4] - dst[0] + dst[7];
355  sums[6] = sums[5] - dst[1] + last;
356  sums[7] = sums[6] - dst[2] + last;
357  sums[8] = sums[7] - dst[3] + last;
358  sums[9] = sums[8] - dst[4] + last;
359 
360  dst[0]= (sums[0] + sums[2] + 2*dst[0])>>4;
361  dst[1]= (sums[1] + sums[3] + 2*dst[1])>>4;
362  dst[2]= (sums[2] + sums[4] + 2*dst[2])>>4;
363  dst[3]= (sums[3] + sums[5] + 2*dst[3])>>4;
364  dst[4]= (sums[4] + sums[6] + 2*dst[4])>>4;
365  dst[5]= (sums[5] + sums[7] + 2*dst[5])>>4;
366  dst[6]= (sums[6] + sums[8] + 2*dst[6])>>4;
367  dst[7]= (sums[7] + sums[9] + 2*dst[7])>>4;
368 
369  dst+= stride;
370  }
371 }
372 
373 /**
374  * Experimental Filter 1 (Horizontal)
375  * will not damage linear gradients
376  * Flat blocks should look like they were passed through the (1,1,2,2,4,2,2,1,1) 9-Tap filter
377  * can only smooth blocks at the expected locations (it cannot smooth them if they did move)
378  * MMX2 version does correct clipping C version does not
379  * not identical with the vertical one
380  */
381 static inline void horizX1Filter(uint8_t *src, int stride, int QP)
382 {
383  int y;
384  static uint64_t lut[256];
385  if(!lut[255])
386  {
387  int i;
388  for(i=0; i<256; i++)
389  {
390  int v= i < 128 ? 2*i : 2*(i-256);
391 /*
392 //Simulate 112242211 9-Tap filter
393  uint64_t a= (v/16) & 0xFF;
394  uint64_t b= (v/8) & 0xFF;
395  uint64_t c= (v/4) & 0xFF;
396  uint64_t d= (3*v/8) & 0xFF;
397 */
398 //Simulate piecewise linear interpolation
399  uint64_t a= (v/16) & 0xFF;
400  uint64_t b= (v*3/16) & 0xFF;
401  uint64_t c= (v*5/16) & 0xFF;
402  uint64_t d= (7*v/16) & 0xFF;
403  uint64_t A= (0x100 - a)&0xFF;
404  uint64_t B= (0x100 - b)&0xFF;
405  uint64_t C= (0x100 - c)&0xFF;
406  uint64_t D= (0x100 - c)&0xFF;
407 
408  lut[i] = (a<<56) | (b<<48) | (c<<40) | (d<<32) |
409  (D<<24) | (C<<16) | (B<<8) | (A);
410  //lut[i] = (v<<32) | (v<<24);
411  }
412  }
413 
414  for(y=0; y<BLOCK_SIZE; y++){
415  int a= src[1] - src[2];
416  int b= src[3] - src[4];
417  int c= src[5] - src[6];
418 
419  int d= FFMAX(FFABS(b) - (FFABS(a) + FFABS(c))/2, 0);
420 
421  if(d < QP){
422  int v = d * FFSIGN(-b);
423 
424  src[1] +=v/8;
425  src[2] +=v/4;
426  src[3] +=3*v/8;
427  src[4] -=3*v/8;
428  src[5] -=v/4;
429  src[6] -=v/8;
430  }
431  src+=stride;
432  }
433 }
434 
435 /**
436  * accurate deblock filter
437  */
438 static av_always_inline void do_a_deblock_C(uint8_t *src, int step,
439  int stride, const PPContext *c)
440 {
441  int y;
442  const int QP= c->QP;
443  const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;
444  const int dcThreshold= dcOffset*2 + 1;
445 //START_TIMER
446  src+= step*4; // src points to begin of the 8x8 Block
447  for(y=0; y<8; y++){
448  int numEq= 0;
449 
450  if(((unsigned)(src[-1*step] - src[0*step] + dcOffset)) < dcThreshold) numEq++;
451  if(((unsigned)(src[ 0*step] - src[1*step] + dcOffset)) < dcThreshold) numEq++;
452  if(((unsigned)(src[ 1*step] - src[2*step] + dcOffset)) < dcThreshold) numEq++;
453  if(((unsigned)(src[ 2*step] - src[3*step] + dcOffset)) < dcThreshold) numEq++;
454  if(((unsigned)(src[ 3*step] - src[4*step] + dcOffset)) < dcThreshold) numEq++;
455  if(((unsigned)(src[ 4*step] - src[5*step] + dcOffset)) < dcThreshold) numEq++;
456  if(((unsigned)(src[ 5*step] - src[6*step] + dcOffset)) < dcThreshold) numEq++;
457  if(((unsigned)(src[ 6*step] - src[7*step] + dcOffset)) < dcThreshold) numEq++;
458  if(((unsigned)(src[ 7*step] - src[8*step] + dcOffset)) < dcThreshold) numEq++;
459  if(numEq > c->ppMode.flatnessThreshold){
460  int min, max, x;
461 
462  if(src[0] > src[step]){
463  max= src[0];
464  min= src[step];
465  }else{
466  max= src[step];
467  min= src[0];
468  }
469  for(x=2; x<8; x+=2){
470  if(src[x*step] > src[(x+1)*step]){
471  if(src[x *step] > max) max= src[ x *step];
472  if(src[(x+1)*step] < min) min= src[(x+1)*step];
473  }else{
474  if(src[(x+1)*step] > max) max= src[(x+1)*step];
475  if(src[ x *step] < min) min= src[ x *step];
476  }
477  }
478  if(max-min < 2*QP){
479  const int first= FFABS(src[-1*step] - src[0]) < QP ? src[-1*step] : src[0];
480  const int last= FFABS(src[8*step] - src[7*step]) < QP ? src[8*step] : src[7*step];
481 
482  int sums[10];
483  sums[0] = 4*first + src[0*step] + src[1*step] + src[2*step] + 4;
484  sums[1] = sums[0] - first + src[3*step];
485  sums[2] = sums[1] - first + src[4*step];
486  sums[3] = sums[2] - first + src[5*step];
487  sums[4] = sums[3] - first + src[6*step];
488  sums[5] = sums[4] - src[0*step] + src[7*step];
489  sums[6] = sums[5] - src[1*step] + last;
490  sums[7] = sums[6] - src[2*step] + last;
491  sums[8] = sums[7] - src[3*step] + last;
492  sums[9] = sums[8] - src[4*step] + last;
493 
494  src[0*step]= (sums[0] + sums[2] + 2*src[0*step])>>4;
495  src[1*step]= (sums[1] + sums[3] + 2*src[1*step])>>4;
496  src[2*step]= (sums[2] + sums[4] + 2*src[2*step])>>4;
497  src[3*step]= (sums[3] + sums[5] + 2*src[3*step])>>4;
498  src[4*step]= (sums[4] + sums[6] + 2*src[4*step])>>4;
499  src[5*step]= (sums[5] + sums[7] + 2*src[5*step])>>4;
500  src[6*step]= (sums[6] + sums[8] + 2*src[6*step])>>4;
501  src[7*step]= (sums[7] + sums[9] + 2*src[7*step])>>4;
502  }
503  }else{
504  const int middleEnergy= 5*(src[4*step] - src[3*step]) + 2*(src[2*step] - src[5*step]);
505 
506  if(FFABS(middleEnergy) < 8*QP){
507  const int q=(src[3*step] - src[4*step])/2;
508  const int leftEnergy= 5*(src[2*step] - src[1*step]) + 2*(src[0*step] - src[3*step]);
509  const int rightEnergy= 5*(src[6*step] - src[5*step]) + 2*(src[4*step] - src[7*step]);
510 
511  int d= FFABS(middleEnergy) - FFMIN( FFABS(leftEnergy), FFABS(rightEnergy) );
512  d= FFMAX(d, 0);
513 
514  d= (5*d + 32) >> 6;
515  d*= FFSIGN(-middleEnergy);
516 
517  if(q>0){
518  d= d<0 ? 0 : d;
519  d= d>q ? q : d;
520  }else{
521  d= d>0 ? 0 : d;
522  d= d<q ? q : d;
523  }
524 
525  src[3*step]-= d;
526  src[4*step]+= d;
527  }
528  }
529 
530  src += stride;
531  }
532 /*if(step==16){
533  STOP_TIMER("step16")
534 }else{
535  STOP_TIMER("stepX")
536 }*/
537 }
538 
539 //Note: we have C, MMX, MMX2, 3DNOW version there is no 3DNOW+MMX2 one
540 //Plain C versions
541 //we always compile C for testing which needs bitexactness
542 #define TEMPLATE_PP_C 1
543 #include "postprocess_template.c"
544 
545 #if HAVE_ALTIVEC
546 # define TEMPLATE_PP_ALTIVEC 1
547 # include "postprocess_altivec_template.c"
548 # include "postprocess_template.c"
549 #endif
550 
551 #if ARCH_X86 && HAVE_INLINE_ASM
552 # if CONFIG_RUNTIME_CPUDETECT
553 # define TEMPLATE_PP_MMX 1
554 # include "postprocess_template.c"
555 # define TEMPLATE_PP_MMXEXT 1
556 # include "postprocess_template.c"
557 # define TEMPLATE_PP_3DNOW 1
558 # include "postprocess_template.c"
559 # define TEMPLATE_PP_SSE2 1
560 # include "postprocess_template.c"
561 # else
562 # if HAVE_SSE2_INLINE
563 # define TEMPLATE_PP_SSE2 1
564 # include "postprocess_template.c"
565 # elif HAVE_MMXEXT_INLINE
566 # define TEMPLATE_PP_MMXEXT 1
567 # include "postprocess_template.c"
568 # elif HAVE_AMD3DNOW_INLINE
569 # define TEMPLATE_PP_3DNOW 1
570 # include "postprocess_template.c"
571 # elif HAVE_MMX_INLINE
572 # define TEMPLATE_PP_MMX 1
573 # include "postprocess_template.c"
574 # endif
575 # endif
576 #endif
577 
578 typedef void (*pp_fn)(const uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,
579  const QP_STORE_T QPs[], int QPStride, int isColor, PPContext *c2);
580 
581 static inline void postProcess(const uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,
582  const QP_STORE_T QPs[], int QPStride, int isColor, pp_mode *vm, pp_context *vc)
583 {
584  pp_fn pp = postProcess_C;
585  PPContext *c= (PPContext *)vc;
586  PPMode *ppMode= (PPMode *)vm;
587  c->ppMode= *ppMode; //FIXME
588 
589  if (!(ppMode->lumMode & BITEXACT)) {
590 #if CONFIG_RUNTIME_CPUDETECT
591 #if ARCH_X86 && HAVE_INLINE_ASM
592  // ordered per speed fastest first
593  if (c->cpuCaps & AV_CPU_FLAG_SSE2) pp = postProcess_SSE2;
594  else if (c->cpuCaps & AV_CPU_FLAG_MMXEXT) pp = postProcess_MMX2;
595  else if (c->cpuCaps & AV_CPU_FLAG_3DNOW) pp = postProcess_3DNow;
596  else if (c->cpuCaps & AV_CPU_FLAG_MMX) pp = postProcess_MMX;
597 #elif HAVE_ALTIVEC
598  if (c->cpuCaps & AV_CPU_FLAG_ALTIVEC) pp = postProcess_altivec;
599 #endif
600 #else /* CONFIG_RUNTIME_CPUDETECT */
601 #if HAVE_SSE2_INLINE
602  pp = postProcess_SSE2;
603 #elif HAVE_MMXEXT_INLINE
604  pp = postProcess_MMX2;
605 #elif HAVE_AMD3DNOW_INLINE
606  pp = postProcess_3DNow;
607 #elif HAVE_MMX_INLINE
608  pp = postProcess_MMX;
609 #elif HAVE_ALTIVEC
610  pp = postProcess_altivec;
611 #endif
612 #endif /* !CONFIG_RUNTIME_CPUDETECT */
613  }
614 
615  pp(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
616 }
617 
618 /* -pp Command line Help
619 */
620 const char pp_help[] =
621 "Available postprocessing filters:\n"
622 "Filters Options\n"
623 "short long name short long option Description\n"
624 "* * a autoq CPU power dependent enabler\n"
625 " c chrom chrominance filtering enabled\n"
626 " y nochrom chrominance filtering disabled\n"
627 " n noluma luma filtering disabled\n"
628 "hb hdeblock (2 threshold) horizontal deblocking filter\n"
629 " 1. difference factor: default=32, higher -> more deblocking\n"
630 " 2. flatness threshold: default=39, lower -> more deblocking\n"
631 " the h & v deblocking filters share these\n"
632 " so you can't set different thresholds for h / v\n"
633 "vb vdeblock (2 threshold) vertical deblocking filter\n"
634 "ha hadeblock (2 threshold) horizontal deblocking filter\n"
635 "va vadeblock (2 threshold) vertical deblocking filter\n"
636 "h1 x1hdeblock experimental h deblock filter 1\n"
637 "v1 x1vdeblock experimental v deblock filter 1\n"
638 "dr dering deringing filter\n"
639 "al autolevels automatic brightness / contrast\n"
640 " f fullyrange stretch luminance to (0..255)\n"
641 "lb linblenddeint linear blend deinterlacer\n"
642 "li linipoldeint linear interpolating deinterlace\n"
643 "ci cubicipoldeint cubic interpolating deinterlacer\n"
644 "md mediandeint median deinterlacer\n"
645 "fd ffmpegdeint ffmpeg deinterlacer\n"
646 "l5 lowpass5 FIR lowpass deinterlacer\n"
647 "de default hb:a,vb:a,dr:a\n"
648 "fa fast h1:a,v1:a,dr:a\n"
649 "ac ha:a:128:7,va:a,dr:a\n"
650 "tn tmpnoise (3 threshold) temporal noise reducer\n"
651 " 1. <= 2. <= 3. larger -> stronger filtering\n"
652 "fq forceQuant <quantizer> force quantizer\n"
653 "Usage:\n"
654 "<filterName>[:<option>[:<option>...]][[,|/][-]<filterName>[:<option>...]]...\n"
655 "long form example:\n"
656 "vdeblock:autoq/hdeblock:autoq/linblenddeint default,-vdeblock\n"
657 "short form example:\n"
658 "vb:a/hb:a/lb de,-vb\n"
659 "more examples:\n"
660 "tn:64:128:256\n"
661 "\n"
662 ;
663 
664 pp_mode *pp_get_mode_by_name_and_quality(const char *name, int quality)
665 {
666  char temp[GET_MODE_BUFFER_SIZE];
667  char *p= temp;
668  static const char filterDelimiters[] = ",/";
669  static const char optionDelimiters[] = ":|";
670  struct PPMode *ppMode;
671  char *filterToken;
672 
673  if (!name) {
674  av_log(NULL, AV_LOG_ERROR, "pp: Missing argument\n");
675  return NULL;
676  }
677 
678  if (!strcmp(name, "help")) {
679  const char *p;
680  for (p = pp_help; strchr(p, '\n'); p = strchr(p, '\n') + 1) {
681  av_strlcpy(temp, p, FFMIN(sizeof(temp), strchr(p, '\n') - p + 2));
682  av_log(NULL, AV_LOG_INFO, "%s", temp);
683  }
684  return NULL;
685  }
686 
687  ppMode= av_malloc(sizeof(PPMode));
688 
689  ppMode->lumMode= 0;
690  ppMode->chromMode= 0;
691  ppMode->maxTmpNoise[0]= 700;
692  ppMode->maxTmpNoise[1]= 1500;
693  ppMode->maxTmpNoise[2]= 3000;
694  ppMode->maxAllowedY= 234;
695  ppMode->minAllowedY= 16;
696  ppMode->baseDcDiff= 256/8;
697  ppMode->flatnessThreshold= 56-16-1;
698  ppMode->maxClippedThreshold= 0.01;
699  ppMode->error=0;
700 
701  memset(temp, 0, GET_MODE_BUFFER_SIZE);
702  av_strlcpy(temp, name, GET_MODE_BUFFER_SIZE - 1);
703 
704  av_log(NULL, AV_LOG_DEBUG, "pp: %s\n", name);
705 
706  for(;;){
707  char *filterName;
708  int q= 1000000; //PP_QUALITY_MAX;
709  int chrom=-1;
710  int luma=-1;
711  char *option;
712  char *options[OPTIONS_ARRAY_SIZE];
713  int i;
714  int filterNameOk=0;
715  int numOfUnknownOptions=0;
716  int enable=1; //does the user want us to enabled or disabled the filter
717 
718  filterToken= strtok(p, filterDelimiters);
719  if(filterToken == NULL) break;
720  p+= strlen(filterToken) + 1; // p points to next filterToken
721  filterName= strtok(filterToken, optionDelimiters);
722  av_log(NULL, AV_LOG_DEBUG, "pp: %s::%s\n", filterToken, filterName);
723 
724  if(*filterName == '-'){
725  enable=0;
726  filterName++;
727  }
728 
729  for(;;){ //for all options
730  option= strtok(NULL, optionDelimiters);
731  if(option == NULL) break;
732 
733  av_log(NULL, AV_LOG_DEBUG, "pp: option: %s\n", option);
734  if(!strcmp("autoq", option) || !strcmp("a", option)) q= quality;
735  else if(!strcmp("nochrom", option) || !strcmp("y", option)) chrom=0;
736  else if(!strcmp("chrom", option) || !strcmp("c", option)) chrom=1;
737  else if(!strcmp("noluma", option) || !strcmp("n", option)) luma=0;
738  else{
739  options[numOfUnknownOptions] = option;
740  numOfUnknownOptions++;
741  }
742  if(numOfUnknownOptions >= OPTIONS_ARRAY_SIZE-1) break;
743  }
744  options[numOfUnknownOptions] = NULL;
745 
746  /* replace stuff from the replace Table */
747  for(i=0; replaceTable[2*i]!=NULL; i++){
748  if(!strcmp(replaceTable[2*i], filterName)){
749  int newlen= strlen(replaceTable[2*i + 1]);
750  int plen;
751  int spaceLeft;
752 
753  p--, *p=',';
754 
755  plen= strlen(p);
756  spaceLeft= p - temp + plen;
757  if(spaceLeft + newlen >= GET_MODE_BUFFER_SIZE - 1){
758  ppMode->error++;
759  break;
760  }
761  memmove(p + newlen, p, plen+1);
762  memcpy(p, replaceTable[2*i + 1], newlen);
763  filterNameOk=1;
764  }
765  }
766 
767  for(i=0; filters[i].shortName!=NULL; i++){
768  if( !strcmp(filters[i].longName, filterName)
769  || !strcmp(filters[i].shortName, filterName)){
770  ppMode->lumMode &= ~filters[i].mask;
771  ppMode->chromMode &= ~filters[i].mask;
772 
773  filterNameOk=1;
774  if(!enable) break; // user wants to disable it
775 
776  if(q >= filters[i].minLumQuality && luma)
777  ppMode->lumMode|= filters[i].mask;
778  if(chrom==1 || (chrom==-1 && filters[i].chromDefault))
779  if(q >= filters[i].minChromQuality)
780  ppMode->chromMode|= filters[i].mask;
781 
782  if(filters[i].mask == LEVEL_FIX){
783  int o;
784  ppMode->minAllowedY= 16;
785  ppMode->maxAllowedY= 234;
786  for(o=0; options[o]!=NULL; o++){
787  if( !strcmp(options[o],"fullyrange")
788  ||!strcmp(options[o],"f")){
789  ppMode->minAllowedY= 0;
790  ppMode->maxAllowedY= 255;
791  numOfUnknownOptions--;
792  }
793  }
794  }
795  else if(filters[i].mask == TEMP_NOISE_FILTER)
796  {
797  int o;
798  int numOfNoises=0;
799 
800  for(o=0; options[o]!=NULL; o++){
801  char *tail;
802  ppMode->maxTmpNoise[numOfNoises]=
803  strtol(options[o], &tail, 0);
804  if(tail!=options[o]){
805  numOfNoises++;
806  numOfUnknownOptions--;
807  if(numOfNoises >= 3) break;
808  }
809  }
810  }
811  else if(filters[i].mask == V_DEBLOCK || filters[i].mask == H_DEBLOCK
812  || filters[i].mask == V_A_DEBLOCK || filters[i].mask == H_A_DEBLOCK){
813  int o;
814 
815  for(o=0; options[o]!=NULL && o<2; o++){
816  char *tail;
817  int val= strtol(options[o], &tail, 0);
818  if(tail==options[o]) break;
819 
820  numOfUnknownOptions--;
821  if(o==0) ppMode->baseDcDiff= val;
822  else ppMode->flatnessThreshold= val;
823  }
824  }
825  else if(filters[i].mask == FORCE_QUANT){
826  int o;
827  ppMode->forcedQuant= 15;
828 
829  for(o=0; options[o]!=NULL && o<1; o++){
830  char *tail;
831  int val= strtol(options[o], &tail, 0);
832  if(tail==options[o]) break;
833 
834  numOfUnknownOptions--;
835  ppMode->forcedQuant= val;
836  }
837  }
838  }
839  }
840  if(!filterNameOk) ppMode->error++;
841  ppMode->error += numOfUnknownOptions;
842  }
843 
844  av_log(NULL, AV_LOG_DEBUG, "pp: lumMode=%X, chromMode=%X\n", ppMode->lumMode, ppMode->chromMode);
845  if(ppMode->error){
846  av_log(NULL, AV_LOG_ERROR, "%d errors in postprocess string \"%s\"\n", ppMode->error, name);
847  av_free(ppMode);
848  return NULL;
849  }
850  return ppMode;
851 }
852 
853 void pp_free_mode(pp_mode *mode){
854  av_free(mode);
855 }
856 
857 static void reallocAlign(void **p, int alignment, int size){
858  av_free(*p);
859  *p= av_mallocz(size);
860 }
861 
862 static void reallocBuffers(PPContext *c, int width, int height, int stride, int qpStride){
863  int mbWidth = (width+15)>>4;
864  int mbHeight= (height+15)>>4;
865  int i;
866 
867  c->stride= stride;
868  c->qpStride= qpStride;
869 
870  reallocAlign((void **)&c->tempDst, 8, stride*24+32);
871  reallocAlign((void **)&c->tempSrc, 8, stride*24);
872  reallocAlign((void **)&c->tempBlocks, 8, 2*16*8);
873  reallocAlign((void **)&c->yHistogram, 8, 256*sizeof(uint64_t));
874  for(i=0; i<256; i++)
875  c->yHistogram[i]= width*height/64*15/256;
876 
877  for(i=0; i<3; i++){
878  //Note: The +17*1024 is just there so I do not have to worry about r/w over the end.
879  reallocAlign((void **)&c->tempBlurred[i], 8, stride*mbHeight*16 + 17*1024);
880  reallocAlign((void **)&c->tempBlurredPast[i], 8, 256*((height+7)&(~7))/2 + 17*1024);//FIXME size
881  }
882 
883  reallocAlign((void **)&c->deintTemp, 8, 2*width+32);
884  reallocAlign((void **)&c->nonBQPTable, 8, qpStride*mbHeight*sizeof(QP_STORE_T));
885  reallocAlign((void **)&c->stdQPTable, 8, qpStride*mbHeight*sizeof(QP_STORE_T));
886  reallocAlign((void **)&c->forcedQPTable, 8, mbWidth*sizeof(QP_STORE_T));
887 }
888 
889 static const char * context_to_name(void * ptr) {
890  return "postproc";
891 }
892 
893 static const AVClass av_codec_context_class = { "Postproc", context_to_name, NULL };
894 
895 pp_context *pp_get_context(int width, int height, int cpuCaps){
896  PPContext *c= av_malloc(sizeof(PPContext));
897  int stride= FFALIGN(width, 16); //assumed / will realloc if needed
898  int qpStride= (width+15)/16 + 2; //assumed / will realloc if needed
899 
900  memset(c, 0, sizeof(PPContext));
901  c->av_class = &av_codec_context_class;
902  if(cpuCaps&PP_FORMAT){
903  c->hChromaSubSample= cpuCaps&0x3;
904  c->vChromaSubSample= (cpuCaps>>4)&0x3;
905  }else{
906  c->hChromaSubSample= 1;
907  c->vChromaSubSample= 1;
908  }
909  if (cpuCaps & PP_CPU_CAPS_AUTO) {
910  c->cpuCaps = av_get_cpu_flags();
911  } else {
912  c->cpuCaps = 0;
913  if (cpuCaps & PP_CPU_CAPS_MMX) c->cpuCaps |= AV_CPU_FLAG_MMX;
914  if (cpuCaps & PP_CPU_CAPS_MMX2) c->cpuCaps |= AV_CPU_FLAG_MMXEXT;
915  if (cpuCaps & PP_CPU_CAPS_3DNOW) c->cpuCaps |= AV_CPU_FLAG_3DNOW;
916  if (cpuCaps & PP_CPU_CAPS_ALTIVEC) c->cpuCaps |= AV_CPU_FLAG_ALTIVEC;
917  }
918 
919  reallocBuffers(c, width, height, stride, qpStride);
920 
921  c->frameNum=-1;
922 
923  return c;
924 }
925 
926 void pp_free_context(void *vc){
927  PPContext *c = (PPContext*)vc;
928  int i;
929 
930  for(i=0; i<3; i++) av_free(c->tempBlurred[i]);
931  for(i=0; i<3; i++) av_free(c->tempBlurredPast[i]);
932 
933  av_free(c->tempBlocks);
934  av_free(c->yHistogram);
935  av_free(c->tempDst);
936  av_free(c->tempSrc);
937  av_free(c->deintTemp);
938  av_free(c->stdQPTable);
939  av_free(c->nonBQPTable);
940  av_free(c->forcedQPTable);
941 
942  memset(c, 0, sizeof(PPContext));
943 
944  av_free(c);
945 }
946 
947 void pp_postprocess(const uint8_t * src[3], const int srcStride[3],
948  uint8_t * dst[3], const int dstStride[3],
949  int width, int height,
950  const QP_STORE_T *QP_store, int QPStride,
951  pp_mode *vm, void *vc, int pict_type)
952 {
953  int mbWidth = (width+15)>>4;
954  int mbHeight= (height+15)>>4;
955  PPMode *mode = (PPMode*)vm;
956  PPContext *c = (PPContext*)vc;
957  int minStride= FFMAX(FFABS(srcStride[0]), FFABS(dstStride[0]));
958  int absQPStride = FFABS(QPStride);
959 
960  // c->stride and c->QPStride are always positive
961  if(c->stride < minStride || c->qpStride < absQPStride)
962  reallocBuffers(c, width, height,
963  FFMAX(minStride, c->stride),
964  FFMAX(c->qpStride, absQPStride));
965 
966  if(QP_store==NULL || (mode->lumMode & FORCE_QUANT)){
967  int i;
968  QP_store= c->forcedQPTable;
969  absQPStride = QPStride = 0;
970  if(mode->lumMode & FORCE_QUANT)
971  for(i=0; i<mbWidth; i++) c->forcedQPTable[i]= mode->forcedQuant;
972  else
973  for(i=0; i<mbWidth; i++) c->forcedQPTable[i]= 1;
974  }
975 
976  if(pict_type & PP_PICT_TYPE_QP2){
977  int i;
978  const int count= mbHeight * absQPStride;
979  for(i=0; i<(count>>2); i++){
980  ((uint32_t*)c->stdQPTable)[i] = (((const uint32_t*)QP_store)[i]>>1) & 0x7F7F7F7F;
981  }
982  for(i<<=2; i<count; i++){
983  c->stdQPTable[i] = QP_store[i]>>1;
984  }
985  QP_store= c->stdQPTable;
986  QPStride= absQPStride;
987  }
988 
989  if(0){
990  int x,y;
991  for(y=0; y<mbHeight; y++){
992  for(x=0; x<mbWidth; x++){
993  av_log(c, AV_LOG_INFO, "%2d ", QP_store[x + y*QPStride]);
994  }
995  av_log(c, AV_LOG_INFO, "\n");
996  }
997  av_log(c, AV_LOG_INFO, "\n");
998  }
999 
1000  if((pict_type&7)!=3){
1001  if (QPStride >= 0){
1002  int i;
1003  const int count= mbHeight * QPStride;
1004  for(i=0; i<(count>>2); i++){
1005  ((uint32_t*)c->nonBQPTable)[i] = ((const uint32_t*)QP_store)[i] & 0x3F3F3F3F;
1006  }
1007  for(i<<=2; i<count; i++){
1008  c->nonBQPTable[i] = QP_store[i] & 0x3F;
1009  }
1010  } else {
1011  int i,j;
1012  for(i=0; i<mbHeight; i++) {
1013  for(j=0; j<absQPStride; j++) {
1014  c->nonBQPTable[i*absQPStride+j] = QP_store[i*QPStride+j] & 0x3F;
1015  }
1016  }
1017  }
1018  }
1019 
1020  av_log(c, AV_LOG_DEBUG, "using npp filters 0x%X/0x%X\n",
1021  mode->lumMode, mode->chromMode);
1022 
1023  postProcess(src[0], srcStride[0], dst[0], dstStride[0],
1024  width, height, QP_store, QPStride, 0, mode, c);
1025 
1026  width = (width )>>c->hChromaSubSample;
1027  height = (height)>>c->vChromaSubSample;
1028 
1029  if(mode->chromMode){
1030  postProcess(src[1], srcStride[1], dst[1], dstStride[1],
1031  width, height, QP_store, QPStride, 1, mode, c);
1032  postProcess(src[2], srcStride[2], dst[2], dstStride[2],
1033  width, height, QP_store, QPStride, 2, mode, c);
1034  }
1035  else if(srcStride[1] == dstStride[1] && srcStride[2] == dstStride[2]){
1036  linecpy(dst[1], src[1], height, srcStride[1]);
1037  linecpy(dst[2], src[2], height, srcStride[2]);
1038  }else{
1039  int y;
1040  for(y=0; y<height; y++){
1041  memcpy(&(dst[1][y*dstStride[1]]), &(src[1][y*srcStride[1]]), width);
1042  memcpy(&(dst[2][y*dstStride[2]]), &(src[2][y*srcStride[2]]), width);
1043  }
1044  }
1045 }
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