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FFmpeg/libpostproc/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 postprocess.c

  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 = allmost 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 the Subversion log

  75. 

  76. #include "config.h"

  77. #include "avutil.h"

  78. #include <inttypes.h>

  79. #include <stdio.h>

  80. #include <stdlib.h>

  81. #include <string.h>

  82. #ifdef HAVE_MALLOC_H

  83. #include <malloc.h>

  84. #endif

  85. //#undef HAVE_MMX2

  86. //#define HAVE_3DNOW

  87. //#undef HAVE_MMX

  88. //#undef ARCH_X86

  89. //#define DEBUG_BRIGHTNESS

  90. #include "postprocess.h"

  91. #include "postprocess_internal.h"

  92. 

  93. #ifdef HAVE_ALTIVEC_H

  94. #include <altivec.h>

  95. #endif

  96. 

  97. #define GET_MODE_BUFFER_SIZE 500

  98. #define OPTIONS_ARRAY_SIZE 10

  99. #define BLOCK_SIZE 8

  100. #define TEMP_STRIDE 8

  101. //#define NUM_BLOCKS_AT_ONCE 16 //not used yet

  102. 

  103. #if defined(ARCH_X86)

  104. DECLARE_ASM_CONST(8, uint64_t, w05)= 0x0005000500050005LL;

  105. DECLARE_ASM_CONST(8, uint64_t, w04)= 0x0004000400040004LL;

  106. DECLARE_ASM_CONST(8, uint64_t, w20)= 0x0020002000200020LL;

  107. DECLARE_ASM_CONST(8, uint64_t, b00)= 0x0000000000000000LL;

  108. DECLARE_ASM_CONST(8, uint64_t, b01)= 0x0101010101010101LL;

  109. DECLARE_ASM_CONST(8, uint64_t, b02)= 0x0202020202020202LL;

  110. DECLARE_ASM_CONST(8, uint64_t, b08)= 0x0808080808080808LL;

  111. DECLARE_ASM_CONST(8, uint64_t, b80)= 0x8080808080808080LL;

  112. #endif

  113. 

  114. DECLARE_ASM_CONST(8, int, deringThreshold)= 20;

  115. 

  116. 

  117. static struct PPFilter filters[]=

  118. {

  119.         {"hb", "hdeblock",              1, 1, 3, H_DEBLOCK},

  120.         {"vb", "vdeblock",              1, 2, 4, V_DEBLOCK},

  121. /*      {"hr", "rkhdeblock",            1, 1, 3, H_RK1_FILTER},

  122.         {"vr", "rkvdeblock",            1, 2, 4, V_RK1_FILTER},*/

  123.         {"h1", "x1hdeblock",            1, 1, 3, H_X1_FILTER},

  124.         {"v1", "x1vdeblock",            1, 2, 4, V_X1_FILTER},

  125.         {"ha", "ahdeblock",             1, 1, 3, H_A_DEBLOCK},

  126.         {"va", "avdeblock",             1, 2, 4, V_A_DEBLOCK},

  127.         {"dr", "dering",                1, 5, 6, DERING},

  128.         {"al", "autolevels",            0, 1, 2, LEVEL_FIX},

  129.         {"lb", "linblenddeint",         1, 1, 4, LINEAR_BLEND_DEINT_FILTER},

  130.         {"li", "linipoldeint",          1, 1, 4, LINEAR_IPOL_DEINT_FILTER},

  131.         {"ci", "cubicipoldeint",        1, 1, 4, CUBIC_IPOL_DEINT_FILTER},

  132.         {"md", "mediandeint",           1, 1, 4, MEDIAN_DEINT_FILTER},

  133.         {"fd", "ffmpegdeint",           1, 1, 4, FFMPEG_DEINT_FILTER},

  134.         {"l5", "lowpass5",              1, 1, 4, LOWPASS5_DEINT_FILTER},

  135.         {"tn", "tmpnoise",              1, 7, 8, TEMP_NOISE_FILTER},

  136.         {"fq", "forcequant",            1, 0, 0, FORCE_QUANT},

  137.         {NULL, NULL,0,0,0,0} //End Marker

  138. };

  139. 

  140. static const char *replaceTable[]=

  141. {

  142.         "default",      "hb:a,vb:a,dr:a",

  143.         "de",           "hb:a,vb:a,dr:a",

  144.         "fast",         "h1:a,v1:a,dr:a",

  145.         "fa",           "h1:a,v1:a,dr:a",

  146.         "ac",           "ha:a:128:7,va:a,dr:a",

  147.         NULL //End Marker

  148. };

  149. 

  150. 

  151. #if defined(ARCH_X86)

  152. static inline void prefetchnta(void *p)

  153. {

  154.         asm volatile(   "prefetchnta (%0)\n\t"

  155.                 : : "r" (p)

  156.         );

  157. }

  158. 

  159. static inline void prefetcht0(void *p)

  160. {

  161.         asm volatile(   "prefetcht0 (%0)\n\t"

  162.                 : : "r" (p)

  163.         );

  164. }

  165. 

  166. static inline void prefetcht1(void *p)

  167. {

  168.         asm volatile(   "prefetcht1 (%0)\n\t"

  169.                 : : "r" (p)

  170.         );

  171. }

  172. 

  173. static inline void prefetcht2(void *p)

  174. {

  175.         asm volatile(   "prefetcht2 (%0)\n\t"

  176.                 : : "r" (p)

  177.         );

  178. }

  179. #endif

  180. 

  181. // The horizontal Functions exist only in C cuz the MMX code is faster with vertical filters and transposing

  182. 

  183. /**

  184.  * Check if the given 8x8 Block is mostly "flat"

  185.  */

  186. static inline int isHorizDC_C(uint8_t src[], int stride, PPContext *c)

  187. {

  188.         int numEq= 0;

  189.         int y;

  190.         const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;

  191.         const int dcThreshold= dcOffset*2 + 1;

  192. 

  193.         for(y=0; y<BLOCK_SIZE; y++)

  194.         {

  195.                 if(((unsigned)(src[0] - src[1] + dcOffset)) < dcThreshold) numEq++;

  196.                 if(((unsigned)(src[1] - src[2] + dcOffset)) < dcThreshold) numEq++;

  197.                 if(((unsigned)(src[2] - src[3] + dcOffset)) < dcThreshold) numEq++;

  198.                 if(((unsigned)(src[3] - src[4] + dcOffset)) < dcThreshold) numEq++;

  199.                 if(((unsigned)(src[4] - src[5] + dcOffset)) < dcThreshold) numEq++;

  200.                 if(((unsigned)(src[5] - src[6] + dcOffset)) < dcThreshold) numEq++;

  201.                 if(((unsigned)(src[6] - src[7] + dcOffset)) < dcThreshold) numEq++;

  202.                 src+= stride;

  203.         }

  204.         return numEq > c->ppMode.flatnessThreshold;

  205. }

  206. 

  207. /**

  208.  * Check if the middle 8x8 Block in the given 8x16 block is flat

  209.  */

  210. static inline int isVertDC_C(uint8_t src[], int stride, PPContext *c){

  211.         int numEq= 0;

  212.         int y;

  213.         const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;

  214.         const int dcThreshold= dcOffset*2 + 1;

  215. 

  216.         src+= stride*4; // src points to begin of the 8x8 Block

  217.         for(y=0; y<BLOCK_SIZE-1; y++)

  218.         {

  219.                 if(((unsigned)(src[0] - src[0+stride] + dcOffset)) < dcThreshold) numEq++;

  220.                 if(((unsigned)(src[1] - src[1+stride] + dcOffset)) < dcThreshold) numEq++;

  221.                 if(((unsigned)(src[2] - src[2+stride] + dcOffset)) < dcThreshold) numEq++;

  222.                 if(((unsigned)(src[3] - src[3+stride] + dcOffset)) < dcThreshold) numEq++;

  223.                 if(((unsigned)(src[4] - src[4+stride] + dcOffset)) < dcThreshold) numEq++;

  224.                 if(((unsigned)(src[5] - src[5+stride] + dcOffset)) < dcThreshold) numEq++;

  225.                 if(((unsigned)(src[6] - src[6+stride] + dcOffset)) < dcThreshold) numEq++;

  226.                 if(((unsigned)(src[7] - src[7+stride] + dcOffset)) < dcThreshold) numEq++;

  227.                 src+= stride;

  228.         }

  229.         return numEq > c->ppMode.flatnessThreshold;

  230. }

  231. 

  232. static inline int isHorizMinMaxOk_C(uint8_t src[], int stride, int QP)

  233. {

  234.         int i;

  235. #if 1

  236.         for(i=0; i<2; i++){

  237.                 if((unsigned)(src[0] - src[5] + 2*QP) > 4*QP) return 0;

  238.                 src += stride;

  239.                 if((unsigned)(src[2] - src[7] + 2*QP) > 4*QP) return 0;

  240.                 src += stride;

  241.                 if((unsigned)(src[4] - src[1] + 2*QP) > 4*QP) return 0;

  242.                 src += stride;

  243.                 if((unsigned)(src[6] - src[3] + 2*QP) > 4*QP) return 0;

  244.                 src += stride;

  245.         }

  246. #else

  247.         for(i=0; i<8; i++){

  248.                 if((unsigned)(src[0] - src[7] + 2*QP) > 4*QP) return 0;

  249.                 src += stride;

  250.         }

  251. #endif

  252.         return 1;

  253. }

  254. 

  255. static inline int isVertMinMaxOk_C(uint8_t src[], int stride, int QP)

  256. {

  257. #if 1

  258. #if 1

  259.         int x;

  260.         src+= stride*4;

  261.         for(x=0; x<BLOCK_SIZE; x+=4)

  262.         {

  263.                 if((unsigned)(src[  x + 0*stride] - src[  x + 5*stride] + 2*QP) > 4*QP) return 0;

  264.                 if((unsigned)(src[1+x + 2*stride] - src[1+x + 7*stride] + 2*QP) > 4*QP) return 0;

  265.                 if((unsigned)(src[2+x + 4*stride] - src[2+x + 1*stride] + 2*QP) > 4*QP) return 0;

  266.                 if((unsigned)(src[3+x + 6*stride] - src[3+x + 3*stride] + 2*QP) > 4*QP) return 0;

  267.         }

  268. #else

  269.         int x;

  270.         src+= stride*3;

  271.         for(x=0; x<BLOCK_SIZE; x++)

  272.         {

  273.                 if((unsigned)(src[x + stride] - src[x + (stride<<3)] + 2*QP) > 4*QP) return 0;

  274.         }

  275. #endif

  276.         return 1;

  277. #else

  278.         int x;

  279.         src+= stride*4;

  280.         for(x=0; x<BLOCK_SIZE; x++)

  281.         {

  282.                 int min=255;

  283.                 int max=0;

  284.                 int y;

  285.                 for(y=0; y<8; y++){

  286.                         int v= src[x + y*stride];

  287.                         if(v>max) max=v;

  288.                         if(v<min) min=v;

  289.                 }

  290.                 if(max-min > 2*QP) return 0;

  291.         }

  292.         return 1;

  293. #endif

  294. }

  295. 

  296. static inline int horizClassify_C(uint8_t src[], int stride, PPContext *c){

  297.         if( isHorizDC_C(src, stride, c) ){

  298.                 if( isHorizMinMaxOk_C(src, stride, c->QP) )

  299.                         return 1;

  300.                 else

  301.                         return 0;

  302.         }else{

  303.                 return 2;

  304.         }

  305. }

  306. 

  307. static inline int vertClassify_C(uint8_t src[], int stride, PPContext *c){

  308.         if( isVertDC_C(src, stride, c) ){

  309.                 if( isVertMinMaxOk_C(src, stride, c->QP) )

  310.                         return 1;

  311.                 else

  312.                         return 0;

  313.         }else{

  314.                 return 2;

  315.         }

  316. }

  317. 

  318. static inline void doHorizDefFilter_C(uint8_t dst[], int stride, PPContext *c)

  319. {

  320.         int y;

  321.         for(y=0; y<BLOCK_SIZE; y++)

  322.         {

  323.                 const int middleEnergy= 5*(dst[4] - dst[3]) + 2*(dst[2] - dst[5]);

  324. 

  325.                 if(FFABS(middleEnergy) < 8*c->QP)

  326.                 {

  327.                         const int q=(dst[3] - dst[4])/2;

  328.                         const int leftEnergy=  5*(dst[2] - dst[1]) + 2*(dst[0] - dst[3]);

  329.                         const int rightEnergy= 5*(dst[6] - dst[5]) + 2*(dst[4] - dst[7]);

  330. 

  331.                         int d= FFABS(middleEnergy) - FFMIN( FFABS(leftEnergy), FFABS(rightEnergy) );

  332.                         d= FFMAX(d, 0);

  333. 

  334.                         d= (5*d + 32) >> 6;

  335.                         d*= FFSIGN(-middleEnergy);

  336. 

  337.                         if(q>0)

  338.                         {

  339.                                 d= d<0 ? 0 : d;

  340.                                 d= d>q ? q : d;

  341.                         }

  342.                         else

  343.                         {

  344.                                 d= d>0 ? 0 : d;

  345.                                 d= d<q ? q : d;

  346.                         }

  347. 

  348.                         dst[3]-= d;

  349.                         dst[4]+= d;

  350.                 }

  351.                 dst+= stride;

  352.         }

  353. }

  354. 

  355. /**

  356.  * Do a horizontal low pass filter on the 10x8 block (dst points to middle 8x8 Block)

  357.  * using the 9-Tap Filter (1,1,2,2,4,2,2,1,1)/16 (C version)

  358.  */

  359. static inline void doHorizLowPass_C(uint8_t dst[], int stride, PPContext *c)

  360. {

  361.         int y;

  362.         for(y=0; y<BLOCK_SIZE; y++)

  363.         {

  364.                 const int first= FFABS(dst[-1] - dst[0]) < c->QP ? dst[-1] : dst[0];

  365.                 const int last= FFABS(dst[8] - dst[7]) < c->QP ? dst[8] : dst[7];

  366. 

  367.                 int sums[10];

  368.                 sums[0] = 4*first + dst[0] + dst[1] + dst[2] + 4;

  369.                 sums[1] = sums[0] - first  + dst[3];

  370.                 sums[2] = sums[1] - first  + dst[4];

  371.                 sums[3] = sums[2] - first  + dst[5];

  372.                 sums[4] = sums[3] - first  + dst[6];

  373.                 sums[5] = sums[4] - dst[0] + dst[7];

  374.                 sums[6] = sums[5] - dst[1] + last;

  375.                 sums[7] = sums[6] - dst[2] + last;

  376.                 sums[8] = sums[7] - dst[3] + last;

  377.                 sums[9] = sums[8] - dst[4] + last;

  378. 

  379.                 dst[0]= (sums[0] + sums[2] + 2*dst[0])>>4;

  380.                 dst[1]= (sums[1] + sums[3] + 2*dst[1])>>4;

  381.                 dst[2]= (sums[2] + sums[4] + 2*dst[2])>>4;

  382.                 dst[3]= (sums[3] + sums[5] + 2*dst[3])>>4;

  383.                 dst[4]= (sums[4] + sums[6] + 2*dst[4])>>4;

  384.                 dst[5]= (sums[5] + sums[7] + 2*dst[5])>>4;

  385.                 dst[6]= (sums[6] + sums[8] + 2*dst[6])>>4;

  386.                 dst[7]= (sums[7] + sums[9] + 2*dst[7])>>4;

  387. 

  388.                 dst+= stride;

  389.         }

  390. }

  391. 

  392. /**

  393.  * Experimental Filter 1 (Horizontal)

  394.  * will not damage linear gradients

  395.  * Flat blocks should look like they where passed through the (1,1,2,2,4,2,2,1,1) 9-Tap filter

  396.  * can only smooth blocks at the expected locations (it cannot smooth them if they did move)

  397.  * MMX2 version does correct clipping C version does not

  398.  * not identical with the vertical one

  399.  */

  400. static inline void horizX1Filter(uint8_t *src, int stride, int QP)

  401. {

  402.         int y;

  403.         static uint64_t *lut= NULL;

  404.         if(lut==NULL)

  405.         {

  406.                 int i;

  407.                 lut = av_malloc(256*8);

  408.                 for(i=0; i<256; i++)

  409.                 {

  410.                         int v= i < 128 ? 2*i : 2*(i-256);

  411. /*

  412. //Simulate 112242211 9-Tap filter

  413.                         uint64_t a= (v/16) & 0xFF;

  414.                         uint64_t b= (v/8) & 0xFF;

  415.                         uint64_t c= (v/4) & 0xFF;

  416.                         uint64_t d= (3*v/8) & 0xFF;

  417. */

  418. //Simulate piecewise linear interpolation

  419.                         uint64_t a= (v/16) & 0xFF;

  420.                         uint64_t b= (v*3/16) & 0xFF;

  421.                         uint64_t c= (v*5/16) & 0xFF;

  422.                         uint64_t d= (7*v/16) & 0xFF;

  423.                         uint64_t A= (0x100 - a)&0xFF;

  424.                         uint64_t B= (0x100 - b)&0xFF;

  425.                         uint64_t C= (0x100 - c)&0xFF;

  426.                         uint64_t D= (0x100 - c)&0xFF;

  427. 

  428.                         lut[i]   = (a<<56) | (b<<48) | (c<<40) | (d<<32) |

  429.                                 (D<<24) | (C<<16) | (B<<8) | (A);

  430.                         //lut[i] = (v<<32) | (v<<24);

  431.                 }

  432.         }

  433. 

  434.         for(y=0; y<BLOCK_SIZE; y++)

  435.         {

  436.                 int a= src[1] - src[2];

  437.                 int b= src[3] - src[4];

  438.                 int c= src[5] - src[6];

  439. 

  440.                 int d= FFMAX(FFABS(b) - (FFABS(a) + FFABS(c))/2, 0);

  441. 

  442.                 if(d < QP)

  443.                 {

  444.                         int v = d * FFSIGN(-b);

  445. 

  446.                         src[1] +=v/8;

  447.                         src[2] +=v/4;

  448.                         src[3] +=3*v/8;

  449.                         src[4] -=3*v/8;

  450.                         src[5] -=v/4;

  451.                         src[6] -=v/8;

  452. 

  453.                 }

  454.                 src+=stride;

  455.         }

  456. }

  457. 

  458. /**

  459.  * accurate deblock filter

  460.  */

  461. static av_always_inline void do_a_deblock_C(uint8_t *src, int step, int stride, PPContext *c){

  462.         int y;

  463.         const int QP= c->QP;

  464.         const int dcOffset= ((c->nonBQP*c->ppMode.baseDcDiff)>>8) + 1;

  465.         const int dcThreshold= dcOffset*2 + 1;

  466. //START_TIMER

  467.         src+= step*4; // src points to begin of the 8x8 Block

  468.         for(y=0; y<8; y++){

  469.                 int numEq= 0;

  470. 

  471.                 if(((unsigned)(src[-1*step] - src[0*step] + dcOffset)) < dcThreshold) numEq++;

  472.                 if(((unsigned)(src[ 0*step] - src[1*step] + dcOffset)) < dcThreshold) numEq++;

  473.                 if(((unsigned)(src[ 1*step] - src[2*step] + dcOffset)) < dcThreshold) numEq++;

  474.                 if(((unsigned)(src[ 2*step] - src[3*step] + dcOffset)) < dcThreshold) numEq++;

  475.                 if(((unsigned)(src[ 3*step] - src[4*step] + dcOffset)) < dcThreshold) numEq++;

  476.                 if(((unsigned)(src[ 4*step] - src[5*step] + dcOffset)) < dcThreshold) numEq++;

  477.                 if(((unsigned)(src[ 5*step] - src[6*step] + dcOffset)) < dcThreshold) numEq++;

  478.                 if(((unsigned)(src[ 6*step] - src[7*step] + dcOffset)) < dcThreshold) numEq++;

  479.                 if(((unsigned)(src[ 7*step] - src[8*step] + dcOffset)) < dcThreshold) numEq++;

  480.                 if(numEq > c->ppMode.flatnessThreshold){

  481.                         int min, max, x;

  482. 

  483.                         if(src[0] > src[step]){

  484.                             max= src[0];

  485.                             min= src[step];

  486.                         }else{

  487.                             max= src[step];

  488.                             min= src[0];

  489.                         }

  490.                         for(x=2; x<8; x+=2){

  491.                                 if(src[x*step] > src[(x+1)*step]){

  492.                                         if(src[x    *step] > max) max= src[ x   *step];

  493.                                         if(src[(x+1)*step] < min) min= src[(x+1)*step];

  494.                                 }else{

  495.                                         if(src[(x+1)*step] > max) max= src[(x+1)*step];

  496.                                         if(src[ x   *step] < min) min= src[ x   *step];

  497.                                 }

  498.                         }

  499.                         if(max-min < 2*QP){

  500.                                 const int first= FFABS(src[-1*step] - src[0]) < QP ? src[-1*step] : src[0];

  501.                                 const int last= FFABS(src[8*step] - src[7*step]) < QP ? src[8*step] : src[7*step];

  502. 

  503.                                 int sums[10];

  504.                                 sums[0] = 4*first + src[0*step] + src[1*step] + src[2*step] + 4;

  505.                                 sums[1] = sums[0] - first       + src[3*step];

  506.                                 sums[2] = sums[1] - first       + src[4*step];

  507.                                 sums[3] = sums[2] - first       + src[5*step];

  508.                                 sums[4] = sums[3] - first       + src[6*step];

  509.                                 sums[5] = sums[4] - src[0*step] + src[7*step];

  510.                                 sums[6] = sums[5] - src[1*step] + last;

  511.                                 sums[7] = sums[6] - src[2*step] + last;

  512.                                 sums[8] = sums[7] - src[3*step] + last;

  513.                                 sums[9] = sums[8] - src[4*step] + last;

  514. 

  515.                                 src[0*step]= (sums[0] + sums[2] + 2*src[0*step])>>4;

  516.                                 src[1*step]= (sums[1] + sums[3] + 2*src[1*step])>>4;

  517.                                 src[2*step]= (sums[2] + sums[4] + 2*src[2*step])>>4;

  518.                                 src[3*step]= (sums[3] + sums[5] + 2*src[3*step])>>4;

  519.                                 src[4*step]= (sums[4] + sums[6] + 2*src[4*step])>>4;

  520.                                 src[5*step]= (sums[5] + sums[7] + 2*src[5*step])>>4;

  521.                                 src[6*step]= (sums[6] + sums[8] + 2*src[6*step])>>4;

  522.                                 src[7*step]= (sums[7] + sums[9] + 2*src[7*step])>>4;

  523.                         }

  524.                 }else{

  525.                         const int middleEnergy= 5*(src[4*step] - src[3*step]) + 2*(src[2*step] - src[5*step]);

  526. 

  527.                         if(FFABS(middleEnergy) < 8*QP)

  528.                         {

  529.                                 const int q=(src[3*step] - src[4*step])/2;

  530.                                 const int leftEnergy=  5*(src[2*step] - src[1*step]) + 2*(src[0*step] - src[3*step]);

  531.                                 const int rightEnergy= 5*(src[6*step] - src[5*step]) + 2*(src[4*step] - src[7*step]);

  532. 

  533.                                 int d= FFABS(middleEnergy) - FFMIN( FFABS(leftEnergy), FFABS(rightEnergy) );

  534.                                 d= FFMAX(d, 0);

  535. 

  536.                                 d= (5*d + 32) >> 6;

  537.                                 d*= FFSIGN(-middleEnergy);

  538. 

  539.                                 if(q>0)

  540.                                 {

  541.                                         d= d<0 ? 0 : d;

  542.                                         d= d>q ? q : d;

  543.                                 }

  544.                                 else

  545.                                 {

  546.                                         d= d>0 ? 0 : d;

  547.                                         d= d<q ? q : d;

  548.                                 }

  549. 

  550.                                 src[3*step]-= d;

  551.                                 src[4*step]+= d;

  552.                         }

  553.                 }

  554. 

  555.                 src += stride;

  556.         }

  557. /*if(step==16){

  558.     STOP_TIMER("step16")

  559. }else{

  560.     STOP_TIMER("stepX")

  561. }*/

  562. }

  563. 

  564. //Note: we have C, MMX, MMX2, 3DNOW version there is no 3DNOW+MMX2 one

  565. //Plain C versions

  566. #if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)

  567. #define COMPILE_C

  568. #endif

  569. 

  570. #ifdef ARCH_POWERPC

  571. #ifdef HAVE_ALTIVEC

  572. #define COMPILE_ALTIVEC

  573. #endif //HAVE_ALTIVEC

  574. #endif //ARCH_POWERPC

  575. 

  576. #if defined(ARCH_X86)

  577. 

  578. #if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)

  579. #define COMPILE_MMX

  580. #endif

  581. 

  582. #if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)

  583. #define COMPILE_MMX2

  584. #endif

  585. 

  586. #if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)

  587. #define COMPILE_3DNOW

  588. #endif

  589. #endif /* defined(ARCH_X86) */

  590. 

  591. #undef HAVE_MMX

  592. #undef HAVE_MMX2

  593. #undef HAVE_3DNOW

  594. #undef HAVE_ALTIVEC

  595. 

  596. #ifdef COMPILE_C

  597. #undef HAVE_MMX

  598. #undef HAVE_MMX2

  599. #undef HAVE_3DNOW

  600. #define RENAME(a) a ## _C

  601. #include "postprocess_template.c"

  602. #endif

  603. 

  604. #ifdef ARCH_POWERPC

  605. #ifdef COMPILE_ALTIVEC

  606. #undef RENAME

  607. #define HAVE_ALTIVEC

  608. #define RENAME(a) a ## _altivec

  609. #include "postprocess_altivec_template.c"

  610. #include "postprocess_template.c"

  611. #endif

  612. #endif //ARCH_POWERPC

  613. 

  614. //MMX versions

  615. #ifdef COMPILE_MMX

  616. #undef RENAME

  617. #define HAVE_MMX

  618. #undef HAVE_MMX2

  619. #undef HAVE_3DNOW

  620. #define RENAME(a) a ## _MMX

  621. #include "postprocess_template.c"

  622. #endif

  623. 

  624. //MMX2 versions

  625. #ifdef COMPILE_MMX2

  626. #undef RENAME

  627. #define HAVE_MMX

  628. #define HAVE_MMX2

  629. #undef HAVE_3DNOW

  630. #define RENAME(a) a ## _MMX2

  631. #include "postprocess_template.c"

  632. #endif

  633. 

  634. //3DNOW versions

  635. #ifdef COMPILE_3DNOW

  636. #undef RENAME

  637. #define HAVE_MMX

  638. #undef HAVE_MMX2

  639. #define HAVE_3DNOW

  640. #define RENAME(a) a ## _3DNow

  641. #include "postprocess_template.c"

  642. #endif

  643. 

  644. // minor note: the HAVE_xyz is messed up after that line so do not use it.

  645. 

  646. static inline void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,

  647.         QP_STORE_T QPs[], int QPStride, int isColor, pp_mode_t *vm, pp_context_t *vc)

  648. {

  649.         PPContext *c= (PPContext *)vc;

  650.         PPMode *ppMode= (PPMode *)vm;

  651.         c->ppMode= *ppMode; //FIXME

  652. 

  653.         // Using ifs here as they are faster than function pointers although the

  654.         // difference would not be measureable here but it is much better because

  655.         // someone might exchange the CPU whithout restarting MPlayer ;)

  656. #ifdef RUNTIME_CPUDETECT

  657. #if defined(ARCH_X86)

  658.         // ordered per speed fasterst first

  659.         if(c->cpuCaps & PP_CPU_CAPS_MMX2)

  660.                 postProcess_MMX2(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  661.         else if(c->cpuCaps & PP_CPU_CAPS_3DNOW)

  662.                 postProcess_3DNow(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  663.         else if(c->cpuCaps & PP_CPU_CAPS_MMX)

  664.                 postProcess_MMX(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  665.         else

  666.                 postProcess_C(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  667. #else

  668. #ifdef ARCH_POWERPC

  669. #ifdef HAVE_ALTIVEC

  670.         if(c->cpuCaps & PP_CPU_CAPS_ALTIVEC)

  671.                 postProcess_altivec(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  672.         else

  673. #endif

  674. #endif

  675.                 postProcess_C(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  676. #endif

  677. #else //RUNTIME_CPUDETECT

  678. #ifdef HAVE_MMX2

  679.                 postProcess_MMX2(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  680. #elif defined (HAVE_3DNOW)

  681.                 postProcess_3DNow(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  682. #elif defined (HAVE_MMX)

  683.                 postProcess_MMX(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  684. #elif defined (HAVE_ALTIVEC)

  685.                 postProcess_altivec(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  686. #else

  687.                 postProcess_C(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);

  688. #endif

  689. #endif //!RUNTIME_CPUDETECT

  690. }

  691. 

  692. //static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,

  693. //        QP_STORE_T QPs[], int QPStride, int isColor, struct PPMode *ppMode);

  694. 

  695. /* -pp Command line Help

  696. */

  697. #if LIBPOSTPROC_VERSION_INT < (52<<16)

  698. const char *const pp_help=

  699. #else

  700. const char pp_help[] =

  701. #endif

  702. "Available postprocessing filters:\n"

  703. "Filters                        Options\n"

  704. "short  long name       short   long option     Description\n"

  705. "*      *               a       autoq           CPU power dependent enabler\n"

  706. "                       c       chrom           chrominance filtering enabled\n"

  707. "                       y       nochrom         chrominance filtering disabled\n"

  708. "                       n       noluma          luma filtering disabled\n"

  709. "hb     hdeblock        (2 threshold)           horizontal deblocking filter\n"

  710. "       1. difference factor: default=32, higher -> more deblocking\n"

  711. "       2. flatness threshold: default=39, lower -> more deblocking\n"

  712. "                       the h & v deblocking filters share these\n"

  713. "                       so you can't set different thresholds for h / v\n"

  714. "vb     vdeblock        (2 threshold)           vertical deblocking filter\n"

  715. "ha     hadeblock       (2 threshold)           horizontal deblocking filter\n"

  716. "va     vadeblock       (2 threshold)           vertical deblocking filter\n"

  717. "h1     x1hdeblock                              experimental h deblock filter 1\n"

  718. "v1     x1vdeblock                              experimental v deblock filter 1\n"

  719. "dr     dering                                  deringing filter\n"

  720. "al     autolevels                              automatic brightness / contrast\n"

  721. "                       f        fullyrange     stretch luminance to (0..255)\n"

  722. "lb     linblenddeint                           linear blend deinterlacer\n"

  723. "li     linipoldeint                            linear interpolating deinterlace\n"

  724. "ci     cubicipoldeint                          cubic interpolating deinterlacer\n"

  725. "md     mediandeint                             median deinterlacer\n"

  726. "fd     ffmpegdeint                             ffmpeg deinterlacer\n"

  727. "l5     lowpass5                                FIR lowpass deinterlacer\n"

  728. "de     default                                 hb:a,vb:a,dr:a\n"

  729. "fa     fast                                    h1:a,v1:a,dr:a\n"

  730. "ac                                             ha:a:128:7,va:a,dr:a\n"

  731. "tn     tmpnoise        (3 threshold)           temporal noise reducer\n"

  732. "                     1. <= 2. <= 3.            larger -> stronger filtering\n"

  733. "fq     forceQuant      <quantizer>             force quantizer\n"

  734. "Usage:\n"

  735. "<filterName>[:<option>[:<option>...]][[,|/][-]<filterName>[:<option>...]]...\n"

  736. "long form example:\n"

  737. "vdeblock:autoq/hdeblock:autoq/linblenddeint    default,-vdeblock\n"

  738. "short form example:\n"

  739. "vb:a/hb:a/lb                                   de,-vb\n"

  740. "more examples:\n"

  741. "tn:64:128:256\n"

  742. "\n"

  743. ;

  744. 

  745. pp_mode_t *pp_get_mode_by_name_and_quality(const char *name, int quality)

  746. {

  747.         char temp[GET_MODE_BUFFER_SIZE];

  748.         char *p= temp;

  749.         static const char filterDelimiters[] = ",/";

  750.         static const char optionDelimiters[] = ":";

  751.         struct PPMode *ppMode;

  752.         char *filterToken;

  753. 

  754.         ppMode= av_malloc(sizeof(PPMode));

  755. 

  756.         ppMode->lumMode= 0;

  757.         ppMode->chromMode= 0;

  758.         ppMode->maxTmpNoise[0]= 700;

  759.         ppMode->maxTmpNoise[1]= 1500;

  760.         ppMode->maxTmpNoise[2]= 3000;

  761.         ppMode->maxAllowedY= 234;

  762.         ppMode->minAllowedY= 16;

  763.         ppMode->baseDcDiff= 256/8;

  764.         ppMode->flatnessThreshold= 56-16-1;

  765.         ppMode->maxClippedThreshold= 0.01;

  766.         ppMode->error=0;

  767. 

  768.         strncpy(temp, name, GET_MODE_BUFFER_SIZE);

  769. 

  770.         av_log(NULL, AV_LOG_DEBUG, "pp: %s\n", name);

  771. 

  772.         for(;;){

  773.                 char *filterName;

  774.                 int q= 1000000; //PP_QUALITY_MAX;

  775.                 int chrom=-1;

  776.                 int luma=-1;

  777.                 char *option;

  778.                 char *options[OPTIONS_ARRAY_SIZE];

  779.                 int i;

  780.                 int filterNameOk=0;

  781.                 int numOfUnknownOptions=0;

  782.                 int enable=1; //does the user want us to enabled or disabled the filter

  783. 

  784.                 filterToken= strtok(p, filterDelimiters);

  785.                 if(filterToken == NULL) break;

  786.                 p+= strlen(filterToken) + 1; // p points to next filterToken

  787.                 filterName= strtok(filterToken, optionDelimiters);

  788.                 av_log(NULL, AV_LOG_DEBUG, "pp: %s::%s\n", filterToken, filterName);

  789. 

  790.                 if(*filterName == '-')

  791.                 {

  792.                         enable=0;

  793.                         filterName++;

  794.                 }

  795. 

  796.                 for(;;){ //for all options

  797.                         option= strtok(NULL, optionDelimiters);

  798.                         if(option == NULL) break;

  799. 

  800.                         av_log(NULL, AV_LOG_DEBUG, "pp: option: %s\n", option);

  801.                         if(!strcmp("autoq", option) || !strcmp("a", option)) q= quality;

  802.                         else if(!strcmp("nochrom", option) || !strcmp("y", option)) chrom=0;

  803.                         else if(!strcmp("chrom", option) || !strcmp("c", option)) chrom=1;

  804.                         else if(!strcmp("noluma", option) || !strcmp("n", option)) luma=0;

  805.                         else

  806.                         {

  807.                                 options[numOfUnknownOptions] = option;

  808.                                 numOfUnknownOptions++;

  809.                         }

  810.                         if(numOfUnknownOptions >= OPTIONS_ARRAY_SIZE-1) break;

  811.                 }

  812.                 options[numOfUnknownOptions] = NULL;

  813. 

  814.                 /* replace stuff from the replace Table */

  815.                 for(i=0; replaceTable[2*i]!=NULL; i++)

  816.                 {

  817.                         if(!strcmp(replaceTable[2*i], filterName))

  818.                         {

  819.                                 int newlen= strlen(replaceTable[2*i + 1]);

  820.                                 int plen;

  821.                                 int spaceLeft;

  822. 

  823.                                 if(p==NULL) p= temp, *p=0;      //last filter

  824.                                 else p--, *p=',';               //not last filter

  825. 

  826.                                 plen= strlen(p);

  827.                                 spaceLeft= p - temp + plen;

  828.                                 if(spaceLeft + newlen  >= GET_MODE_BUFFER_SIZE)

  829.                                 {

  830.                                         ppMode->error++;

  831.                                         break;

  832.                                 }

  833.                                 memmove(p + newlen, p, plen+1);

  834.                                 memcpy(p, replaceTable[2*i + 1], newlen);

  835.                                 filterNameOk=1;

  836.                         }

  837.                 }

  838. 

  839.                 for(i=0; filters[i].shortName!=NULL; i++)

  840.                 {

  841.                         if(   !strcmp(filters[i].longName, filterName)

  842.                            || !strcmp(filters[i].shortName, filterName))

  843.                         {

  844.                                 ppMode->lumMode &= ~filters[i].mask;

  845.                                 ppMode->chromMode &= ~filters[i].mask;

  846. 

  847.                                 filterNameOk=1;

  848.                                 if(!enable) break; // user wants to disable it

  849. 

  850.                                 if(q >= filters[i].minLumQuality && luma)

  851.                                         ppMode->lumMode|= filters[i].mask;

  852.                                 if(chrom==1 || (chrom==-1 && filters[i].chromDefault))

  853.                                         if(q >= filters[i].minChromQuality)

  854.                                                 ppMode->chromMode|= filters[i].mask;

  855. 

  856.                                 if(filters[i].mask == LEVEL_FIX)

  857.                                 {

  858.                                         int o;

  859.                                         ppMode->minAllowedY= 16;

  860.                                         ppMode->maxAllowedY= 234;

  861.                                         for(o=0; options[o]!=NULL; o++)

  862.                                         {

  863.                                                 if(  !strcmp(options[o],"fullyrange")

  864.                                                    ||!strcmp(options[o],"f"))

  865.                                                 {

  866.                                                         ppMode->minAllowedY= 0;

  867.                                                         ppMode->maxAllowedY= 255;

  868.                                                         numOfUnknownOptions--;

  869.                                                 }

  870.                                         }

  871.                                 }

  872.                                 else if(filters[i].mask == TEMP_NOISE_FILTER)

  873.                                 {

  874.                                         int o;

  875.                                         int numOfNoises=0;

  876. 

  877.                                         for(o=0; options[o]!=NULL; o++)

  878.                                         {

  879.                                                 char *tail;

  880.                                                 ppMode->maxTmpNoise[numOfNoises]=

  881.                                                         strtol(options[o], &tail, 0);

  882.                                                 if(tail!=options[o])

  883.                                                 {

  884.                                                         numOfNoises++;

  885.                                                         numOfUnknownOptions--;

  886.                                                         if(numOfNoises >= 3) break;

  887.                                                 }

  888.                                         }

  889.                                 }

  890.                                 else if(filters[i].mask == V_DEBLOCK   || filters[i].mask == H_DEBLOCK

  891.                                      || filters[i].mask == V_A_DEBLOCK || filters[i].mask == H_A_DEBLOCK)

  892.                                 {

  893.                                         int o;

  894. 

  895.                                         for(o=0; options[o]!=NULL && o<2; o++)

  896.                                         {

  897.                                                 char *tail;

  898.                                                 int val= strtol(options[o], &tail, 0);

  899.                                                 if(tail==options[o]) break;

  900. 

  901.                                                 numOfUnknownOptions--;

  902.                                                 if(o==0) ppMode->baseDcDiff= val;

  903.                                                 else ppMode->flatnessThreshold= val;

  904.                                         }

  905.                                 }

  906.                                 else if(filters[i].mask == FORCE_QUANT)

  907.                                 {

  908.                                         int o;

  909.                                         ppMode->forcedQuant= 15;

  910. 

  911.                                         for(o=0; options[o]!=NULL && o<1; o++)

  912.                                         {

  913.                                                 char *tail;

  914.                                                 int val= strtol(options[o], &tail, 0);

  915.                                                 if(tail==options[o]) break;

  916. 

  917.                                                 numOfUnknownOptions--;

  918.                                                 ppMode->forcedQuant= val;

  919.                                         }

  920.                                 }

  921.                         }

  922.                 }

  923.                 if(!filterNameOk) ppMode->error++;

  924.                 ppMode->error += numOfUnknownOptions;

  925.         }

  926. 

  927.         av_log(NULL, AV_LOG_DEBUG, "pp: lumMode=%X, chromMode=%X\n", ppMode->lumMode, ppMode->chromMode);

  928.         if(ppMode->error)

  929.         {

  930.                 av_log(NULL, AV_LOG_ERROR, "%d errors in postprocess string \"%s\"\n", ppMode->error, name);

  931.                 av_free(ppMode);

  932.                 return NULL;

  933.         }

  934.         return ppMode;

  935. }

  936. 

  937. void pp_free_mode(pp_mode_t *mode){

  938.     av_free(mode);

  939. }

  940. 

  941. static void reallocAlign(void **p, int alignment, int size){

  942.         av_free(*p);

  943.         *p= av_mallocz(size);

  944. }

  945. 

  946. static void reallocBuffers(PPContext *c, int width, int height, int stride, int qpStride){

  947.         int mbWidth = (width+15)>>4;

  948.         int mbHeight= (height+15)>>4;

  949.         int i;

  950. 

  951.         c->stride= stride;

  952.         c->qpStride= qpStride;

  953. 

  954.         reallocAlign((void **)&c->tempDst, 8, stride*24);

  955.         reallocAlign((void **)&c->tempSrc, 8, stride*24);

  956.         reallocAlign((void **)&c->tempBlocks, 8, 2*16*8);

  957.         reallocAlign((void **)&c->yHistogram, 8, 256*sizeof(uint64_t));

  958.         for(i=0; i<256; i++)

  959.                 c->yHistogram[i]= width*height/64*15/256;

  960. 

  961.         for(i=0; i<3; i++)

  962.         {

  963.                 //Note: The +17*1024 is just there so i do not have to worry about r/w over the end.

  964.                 reallocAlign((void **)&c->tempBlured[i], 8, stride*mbHeight*16 + 17*1024);

  965.                 reallocAlign((void **)&c->tempBluredPast[i], 8, 256*((height+7)&(~7))/2 + 17*1024);//FIXME size

  966.         }

  967. 

  968.         reallocAlign((void **)&c->deintTemp, 8, 2*width+32);

  969.         reallocAlign((void **)&c->nonBQPTable, 8, qpStride*mbHeight*sizeof(QP_STORE_T));

  970.         reallocAlign((void **)&c->stdQPTable, 8, qpStride*mbHeight*sizeof(QP_STORE_T));

  971.         reallocAlign((void **)&c->forcedQPTable, 8, mbWidth*sizeof(QP_STORE_T));

  972. }

  973. 

  974. static const char * context_to_name(void * ptr) {

  975.     return "postproc";

  976. }

  977. 

  978. static const AVClass av_codec_context_class = { "Postproc", context_to_name, NULL };

  979. 

  980. pp_context_t *pp_get_context(int width, int height, int cpuCaps){

  981.         PPContext *c= av_malloc(sizeof(PPContext));

  982.         int stride= (width+15)&(~15);    //assumed / will realloc if needed

  983.         int qpStride= (width+15)/16 + 2; //assumed / will realloc if needed

  984. 

  985.         memset(c, 0, sizeof(PPContext));

  986.         c->av_class = &av_codec_context_class;

  987.         c->cpuCaps= cpuCaps;

  988.         if(cpuCaps&PP_FORMAT){

  989.                 c->hChromaSubSample= cpuCaps&0x3;

  990.                 c->vChromaSubSample= (cpuCaps>>4)&0x3;

  991.         }else{

  992.                 c->hChromaSubSample= 1;

  993.                 c->vChromaSubSample= 1;

  994.         }

  995. 

  996.         reallocBuffers(c, width, height, stride, qpStride);

  997. 

  998.         c->frameNum=-1;

  999. 

  1000.         return c;

  1001. }

  1002. 

  1003. void pp_free_context(void *vc){

  1004.         PPContext *c = (PPContext*)vc;

  1005.         int i;

  1006. 

  1007.         for(i=0; i<3; i++) av_free(c->tempBlured[i]);

  1008.         for(i=0; i<3; i++) av_free(c->tempBluredPast[i]);

  1009. 

  1010.         av_free(c->tempBlocks);

  1011.         av_free(c->yHistogram);

  1012.         av_free(c->tempDst);

  1013.         av_free(c->tempSrc);

  1014.         av_free(c->deintTemp);

  1015.         av_free(c->stdQPTable);

  1016.         av_free(c->nonBQPTable);

  1017.         av_free(c->forcedQPTable);

  1018. 

  1019.         memset(c, 0, sizeof(PPContext));

  1020. 

  1021.         av_free(c);

  1022. }

  1023. 

  1024. void  pp_postprocess(uint8_t * src[3], int srcStride[3],

  1025.                  uint8_t * dst[3], int dstStride[3],

  1026.                  int width, int height,

  1027.                  QP_STORE_T *QP_store,  int QPStride,

  1028.                  pp_mode_t *vm,  void *vc, int pict_type)

  1029. {

  1030.         int mbWidth = (width+15)>>4;

  1031.         int mbHeight= (height+15)>>4;

  1032.         PPMode *mode = (PPMode*)vm;

  1033.         PPContext *c = (PPContext*)vc;

  1034.         int minStride= FFMAX(FFABS(srcStride[0]), FFABS(dstStride[0]));

  1035.         int absQPStride = FFABS(QPStride);

  1036. 

  1037.         // c->stride and c->QPStride are always positive

  1038.         if(c->stride < minStride || c->qpStride < absQPStride)

  1039.                 reallocBuffers(c, width, height,

  1040.                                 FFMAX(minStride, c->stride),

  1041.                                 FFMAX(c->qpStride, absQPStride));

  1042. 

  1043.         if(QP_store==NULL || (mode->lumMode & FORCE_QUANT))

  1044.         {

  1045.                 int i;

  1046.                 QP_store= c->forcedQPTable;

  1047.                 absQPStride = QPStride = 0;

  1048.                 if(mode->lumMode & FORCE_QUANT)

  1049.                         for(i=0; i<mbWidth; i++) QP_store[i]= mode->forcedQuant;

  1050.                 else

  1051.                         for(i=0; i<mbWidth; i++) QP_store[i]= 1;

  1052.         }

  1053. 

  1054.         if(pict_type & PP_PICT_TYPE_QP2){

  1055.                 int i;

  1056.                 const int count= mbHeight * absQPStride;

  1057.                 for(i=0; i<(count>>2); i++){

  1058.                         ((uint32_t*)c->stdQPTable)[i] = (((uint32_t*)QP_store)[i]>>1) & 0x7F7F7F7F;

  1059.                 }

  1060.                 for(i<<=2; i<count; i++){

  1061.                         c->stdQPTable[i] = QP_store[i]>>1;

  1062.                 }

  1063.                 QP_store= c->stdQPTable;

  1064.                 QPStride= absQPStride;

  1065.         }

  1066. 

  1067. if(0){

  1068. int x,y;

  1069. for(y=0; y<mbHeight; y++){

  1070.         for(x=0; x<mbWidth; x++){

  1071.                 av_log(c, AV_LOG_INFO, "%2d ", QP_store[x + y*QPStride]);

  1072.         }

  1073.         av_log(c, AV_LOG_INFO, "\n");

  1074. }

  1075.         av_log(c, AV_LOG_INFO, "\n");

  1076. }

  1077. 

  1078.         if((pict_type&7)!=3)

  1079.         {

  1080.                 if (QPStride >= 0) {

  1081.                         int i;

  1082.                         const int count= mbHeight * QPStride;

  1083.                         for(i=0; i<(count>>2); i++){

  1084.                                 ((uint32_t*)c->nonBQPTable)[i] = ((uint32_t*)QP_store)[i] & 0x3F3F3F3F;

  1085.                         }

  1086.                         for(i<<=2; i<count; i++){

  1087.                                 c->nonBQPTable[i] = QP_store[i] & 0x3F;

  1088.                         }

  1089.                 } else {

  1090.                         int i,j;

  1091.                         for(i=0; i<mbHeight; i++) {

  1092.                                     for(j=0; j<absQPStride; j++) {

  1093.                                         c->nonBQPTable[i*absQPStride+j] = QP_store[i*QPStride+j] & 0x3F;

  1094.                                 }

  1095.                         }

  1096.                 }

  1097.         }

  1098. 

  1099.         av_log(c, AV_LOG_DEBUG, "using npp filters 0x%X/0x%X\n",

  1100.                mode->lumMode, mode->chromMode);

  1101. 

  1102.         postProcess(src[0], srcStride[0], dst[0], dstStride[0],

  1103.                 width, height, QP_store, QPStride, 0, mode, c);

  1104. 

  1105.         width  = (width )>>c->hChromaSubSample;

  1106.         height = (height)>>c->vChromaSubSample;

  1107. 

  1108.         if(mode->chromMode)

  1109.         {

  1110.                 postProcess(src[1], srcStride[1], dst[1], dstStride[1],

  1111.                         width, height, QP_store, QPStride, 1, mode, c);

  1112.                 postProcess(src[2], srcStride[2], dst[2], dstStride[2],

  1113.                         width, height, QP_store, QPStride, 2, mode, c);

  1114.         }

  1115.         else if(srcStride[1] == dstStride[1] && srcStride[2] == dstStride[2])

  1116.         {

  1117.                 linecpy(dst[1], src[1], height, srcStride[1]);

  1118.                 linecpy(dst[2], src[2], height, srcStride[2]);

  1119.         }

  1120.         else

  1121.         {

  1122.                 int y;

  1123.                 for(y=0; y<height; y++)

  1124.                 {

  1125.                         memcpy(&(dst[1][y*dstStride[1]]), &(src[1][y*srcStride[1]]), width);

  1126.                         memcpy(&(dst[2][y*dstStride[2]]), &(src[2][y*srcStride[2]]), width);

  1127.                 }

  1128.         }

  1129. }