moving postprocess to ffmpeg/libavcodec

Originally committed as revision 1586 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 9427 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
Originally committed as revision 9428 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc

1 files changed, 875 insertions, 0 deletions

diff --git a/libavcodec/libpostproc/postprocess.c b/libavcodec/libpostproc/postprocess.c
new file mode 100644
index 0000000000..d9261b4b1c
--- /dev/null
+++ b/libavcodec/libpostproc/postprocess.c
@@ -0,0 +1,875 @@
+/*
+    Copyright (C) 2001-2003 Michael Niedermayer (michaelni@gmx.at)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/*
+			C	MMX	MMX2	3DNow
+isVertDC		Ec	Ec
+isVertMinMaxOk		Ec	Ec
+doVertLowPass		E		e	e
+doVertDefFilter		Ec	Ec	e	e
+isHorizDC		Ec	Ec
+isHorizMinMaxOk		a	E
+doHorizLowPass		E		e	e
+doHorizDefFilter	Ec	Ec	e	e
+deRing			E		e	e*
+Vertical RKAlgo1	E		a	a
+Horizontal RKAlgo1			a	a
+Vertical X1#		a		E	E
+Horizontal X1#		a		E	E
+LinIpolDeinterlace	e		E	E*
+CubicIpolDeinterlace	a		e	e*
+LinBlendDeinterlace	e		E	E*
+MedianDeinterlace#	E	Ec	Ec
+TempDeNoiser#		E		e	e
+
+* i dont have a 3dnow CPU -> its untested, but noone said it doesnt work so it seems to work
+# more or less selfinvented filters so the exactness isnt too meaningfull
+E = Exact implementation
+e = allmost exact implementation (slightly different rounding,...)
+a = alternative / approximate impl
+c = checked against the other implementations (-vo md5)
+*/
+
+/*
+TODO:
+reduce the time wasted on the mem transfer
+unroll stuff if instructions depend too much on the prior one
+move YScale thing to the end instead of fixing QP
+write a faster and higher quality deblocking filter :)
+make the mainloop more flexible (variable number of blocks at once
+	(the if/else stuff per block is slowing things down)
+compare the quality & speed of all filters
+split this huge file
+optimize c versions
+try to unroll inner for(x=0 ... loop to avoid these damn if(x ... checks
+...
+*/
+
+//Changelog: use the CVS log
+
+#include "config.h"
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+//#undef HAVE_MMX2
+//#define HAVE_3DNOW
+//#undef HAVE_MMX
+//#undef ARCH_X86
+//#define DEBUG_BRIGHTNESS
+#ifdef USE_FASTMEMCPY
+#include "libvo/fastmemcpy.h"
+#endif
+#include "postprocess.h"
+#include "postprocess_internal.h"
+
+#include "mangle.h" //FIXME should be supressed
+
+#define MIN(a,b) ((a) > (b) ? (b) : (a))
+#define MAX(a,b) ((a) < (b) ? (b) : (a))
+#define ABS(a) ((a) > 0 ? (a) : (-(a)))
+#define SIGN(a) ((a) > 0 ? 1 : -1)
+
+#define GET_MODE_BUFFER_SIZE 500
+#define OPTIONS_ARRAY_SIZE 10
+#define BLOCK_SIZE 8
+#define TEMP_STRIDE 8
+//#define NUM_BLOCKS_AT_ONCE 16 //not used yet
+
+#ifdef ARCH_X86
+static uint64_t __attribute__((aligned(8))) w05=		0x0005000500050005LL;
+static uint64_t __attribute__((aligned(8))) w20=		0x0020002000200020LL;
+static uint64_t __attribute__((aligned(8))) b00= 		0x0000000000000000LL;
+static uint64_t __attribute__((aligned(8))) b01= 		0x0101010101010101LL;
+static uint64_t __attribute__((aligned(8))) b02= 		0x0202020202020202LL;
+static uint64_t __attribute__((aligned(8))) b08= 		0x0808080808080808LL;
+static uint64_t __attribute__((aligned(8))) b80= 		0x8080808080808080LL;
+#endif
+
+static int verbose= 0;
+
+static const int deringThreshold= 20;
+
+
+static struct PPFilter filters[]=
+{
+	{"hb", "hdeblock", 		1, 1, 3, H_DEBLOCK},
+	{"vb", "vdeblock", 		1, 2, 4, V_DEBLOCK},
+/*	{"hr", "rkhdeblock", 		1, 1, 3, H_RK1_FILTER},
+	{"vr", "rkvdeblock", 		1, 2, 4, V_RK1_FILTER},*/
+	{"h1", "x1hdeblock", 		1, 1, 3, H_X1_FILTER},
+	{"v1", "x1vdeblock", 		1, 2, 4, V_X1_FILTER},
+	{"dr", "dering", 		1, 5, 6, DERING},
+	{"al", "autolevels", 		0, 1, 2, LEVEL_FIX},
+	{"lb", "linblenddeint", 	1, 1, 4, LINEAR_BLEND_DEINT_FILTER},
+	{"li", "linipoldeint", 		1, 1, 4, LINEAR_IPOL_DEINT_FILTER},
+	{"ci", "cubicipoldeint",	1, 1, 4, CUBIC_IPOL_DEINT_FILTER},
+	{"md", "mediandeint", 		1, 1, 4, MEDIAN_DEINT_FILTER},
+	{"fd", "ffmpegdeint", 		1, 1, 4, FFMPEG_DEINT_FILTER},
+	{"tn", "tmpnoise", 		1, 7, 8, TEMP_NOISE_FILTER},
+	{"fq", "forcequant", 		1, 0, 0, FORCE_QUANT},
+	{NULL, NULL,0,0,0,0} //End Marker
+};
+
+static char *replaceTable[]=
+{
+	"default", 	"hdeblock:a,vdeblock:a,dering:a,autolevels,tmpnoise:a:150:200:400",
+	"de", 		"hdeblock:a,vdeblock:a,dering:a,autolevels,tmpnoise:a:150:200:400",
+	"fast", 	"x1hdeblock:a,x1vdeblock:a,dering:a,autolevels,tmpnoise:a:150:200:400",
+	"fa", 		"x1hdeblock:a,x1vdeblock:a,dering:a,autolevels,tmpnoise:a:150:200:400",
+	NULL //End Marker
+};
+
+#ifdef ARCH_X86
+static inline void unusedVariableWarningFixer()
+{
+	if(w05 + w20 + b00 + b01 + b02 + b08 + b80 == 0) b00=0;
+}
+#endif
+
+
+#ifdef ARCH_X86
+static inline void prefetchnta(void *p)
+{
+	asm volatile(	"prefetchnta (%0)\n\t"
+		: : "r" (p)
+	);
+}
+
+static inline void prefetcht0(void *p)
+{
+	asm volatile(	"prefetcht0 (%0)\n\t"
+		: : "r" (p)
+	);
+}
+
+static inline void prefetcht1(void *p)
+{
+	asm volatile(	"prefetcht1 (%0)\n\t"
+		: : "r" (p)
+	);
+}
+
+static inline void prefetcht2(void *p)
+{
+	asm volatile(	"prefetcht2 (%0)\n\t"
+		: : "r" (p)
+	);
+}
+#endif
+
+// The horizontal Functions exist only in C cuz the MMX code is faster with vertical filters and transposing
+
+/**
+ * Check if the given 8x8 Block is mostly "flat"
+ */
+static inline int isHorizDC(uint8_t src[], int stride, PPContext *c)
+{
+	int numEq= 0;
+	int y;
+	const int dcOffset= ((c->QP*c->ppMode.baseDcDiff)>>8) + 1;
+	const int dcThreshold= dcOffset*2 + 1;
+	for(y=0; y<BLOCK_SIZE; y++)
+	{
+		if(((unsigned)(src[0] - src[1] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[1] - src[2] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[2] - src[3] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[3] - src[4] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[4] - src[5] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[5] - src[6] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[6] - src[7] + dcOffset)) < dcThreshold) numEq++;
+		src+= stride;
+	}
+	return numEq > c->ppMode.flatnessThreshold;
+}
+
+/**
+ * Check if the middle 8x8 Block in the given 8x16 block is flat
+ */
+static inline int isVertDC_C(uint8_t src[], int stride, PPContext *c){
+	int numEq= 0;
+	int y;
+	const int dcOffset= ((c->QP*c->ppMode.baseDcDiff)>>8) + 1;
+	const int dcThreshold= dcOffset*2 + 1;
+	src+= stride*4; // src points to begin of the 8x8 Block
+	for(y=0; y<BLOCK_SIZE-1; y++)
+	{
+		if(((unsigned)(src[0] - src[0+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[1] - src[1+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[2] - src[2+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[3] - src[3+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[4] - src[4+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[5] - src[5+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[6] - src[6+stride] + dcOffset)) < dcThreshold) numEq++;
+		if(((unsigned)(src[7] - src[7+stride] + dcOffset)) < dcThreshold) numEq++;
+		src+= stride;
+	}
+	return numEq > c->ppMode.flatnessThreshold;
+}
+
+static inline int isHorizMinMaxOk(uint8_t src[], int stride, int QP)
+{
+	if(abs(src[0] - src[7]) > 2*QP) return 0;
+
+	return 1;
+}
+
+static inline void doHorizDefFilter(uint8_t dst[], int stride, int QP)
+{
+	int y;
+	for(y=0; y<BLOCK_SIZE; y++)
+	{
+		const int middleEnergy= 5*(dst[4] - dst[5]) + 2*(dst[2] - dst[5]);
+
+		if(ABS(middleEnergy) < 8*QP)
+		{
+			const int q=(dst[3] - dst[4])/2;
+			const int leftEnergy=  5*(dst[2] - dst[1]) + 2*(dst[0] - dst[3]);
+			const int rightEnergy= 5*(dst[6] - dst[5]) + 2*(dst[4] - dst[7]);
+
+			int d= ABS(middleEnergy) - MIN( ABS(leftEnergy), ABS(rightEnergy) );
+			d= MAX(d, 0);
+
+			d= (5*d + 32) >> 6;
+			d*= SIGN(-middleEnergy);
+
+			if(q>0)
+			{
+				d= d<0 ? 0 : d;
+				d= d>q ? q : d;
+			}
+			else
+			{
+				d= d>0 ? 0 : d;
+				d= d<q ? q : d;
+			}
+
+        		dst[3]-= d;
+	        	dst[4]+= d;
+		}
+		dst+= stride;
+	}
+}
+
+/**
+ * Do a horizontal low pass filter on the 10x8 block (dst points to middle 8x8 Block)
+ * using the 9-Tap Filter (1,1,2,2,4,2,2,1,1)/16 (C version)
+ */
+static inline void doHorizLowPass(uint8_t dst[], int stride, int QP)
+{
+
+	int y;
+	for(y=0; y<BLOCK_SIZE; y++)
+	{
+		const int first= ABS(dst[-1] - dst[0]) < QP ? dst[-1] : dst[0];
+		const int last= ABS(dst[8] - dst[7]) < QP ? dst[8] : dst[7];
+
+		int sums[9];
+		sums[0] = first + dst[0];
+		sums[1] = dst[0] + dst[1];
+		sums[2] = dst[1] + dst[2];
+		sums[3] = dst[2] + dst[3];
+		sums[4] = dst[3] + dst[4];
+		sums[5] = dst[4] + dst[5];
+		sums[6] = dst[5] + dst[6];
+		sums[7] = dst[6] + dst[7];
+		sums[8] = dst[7] + last;
+
+		dst[0]= ((sums[0]<<2) + ((first + sums[2])<<1) + sums[4] + 8)>>4;
+		dst[1]= ((dst[1]<<2) + ((first + sums[0] + sums[3])<<1) + sums[5] + 8)>>4;
+		dst[2]= ((dst[2]<<2) + ((first + sums[1] + sums[4])<<1) + sums[6] + 8)>>4;
+		dst[3]= ((dst[3]<<2) + ((sums[2] + sums[5])<<1) + sums[0] + sums[7] + 8)>>4;
+		dst[4]= ((dst[4]<<2) + ((sums[3] + sums[6])<<1) + sums[1] + sums[8] + 8)>>4;
+		dst[5]= ((dst[5]<<2) + ((last + sums[7] + sums[4])<<1) + sums[2] + 8)>>4;
+		dst[6]= (((last + dst[6])<<2) + ((dst[7] + sums[5])<<1) + sums[3] + 8)>>4;
+		dst[7]= ((sums[8]<<2) + ((last + sums[6])<<1) + sums[4] + 8)>>4;
+
+		dst+= stride;
+	}
+}
+
+/**
+ * Experimental Filter 1 (Horizontal)
+ * will not damage linear gradients
+ * Flat blocks should look like they where passed through the (1,1,2,2,4,2,2,1,1) 9-Tap filter
+ * can only smooth blocks at the expected locations (it cant smooth them if they did move)
+ * MMX2 version does correct clipping C version doesnt
+ * not identical with the vertical one
+ */
+static inline void horizX1Filter(uint8_t *src, int stride, int QP)
+{
+	int y;
+	static uint64_t *lut= NULL;
+	if(lut==NULL)
+	{
+		int i;
+		lut= (uint64_t*)memalign(8, 256*8);
+		for(i=0; i<256; i++)
+		{
+			int v= i < 128 ? 2*i : 2*(i-256);
+/*
+//Simulate 112242211 9-Tap filter
+			uint64_t a= (v/16) & 0xFF;
+			uint64_t b= (v/8) & 0xFF;
+			uint64_t c= (v/4) & 0xFF;
+			uint64_t d= (3*v/8) & 0xFF;
+*/
+//Simulate piecewise linear interpolation
+			uint64_t a= (v/16) & 0xFF;
+			uint64_t b= (v*3/16) & 0xFF;
+			uint64_t c= (v*5/16) & 0xFF;
+			uint64_t d= (7*v/16) & 0xFF;
+			uint64_t A= (0x100 - a)&0xFF;
+			uint64_t B= (0x100 - b)&0xFF;
+			uint64_t C= (0x100 - c)&0xFF;
+			uint64_t D= (0x100 - c)&0xFF;
+
+			lut[i]   = (a<<56) | (b<<48) | (c<<40) | (d<<32) |
+				(D<<24) | (C<<16) | (B<<8) | (A);
+			//lut[i] = (v<<32) | (v<<24);
+		}
+	}
+
+	for(y=0; y<BLOCK_SIZE; y++)
+	{
+		int a= src[1] - src[2];
+		int b= src[3] - src[4];
+		int c= src[5] - src[6];
+
+		int d= MAX(ABS(b) - (ABS(a) + ABS(c))/2, 0);
+
+		if(d < QP)
+		{
+			int v = d * SIGN(-b);
+
+			src[1] +=v/8;
+			src[2] +=v/4;
+			src[3] +=3*v/8;
+			src[4] -=3*v/8;
+			src[5] -=v/4;
+			src[6] -=v/8;
+
+		}
+		src+=stride;
+	}
+}
+
+
+//Note: we have C, MMX, MMX2, 3DNOW version there is no 3DNOW+MMX2 one
+//Plain C versions
+#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)
+#define COMPILE_C
+#endif
+
+#ifdef ARCH_X86
+
+#if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
+#define COMPILE_MMX
+#endif
+
+#if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)
+#define COMPILE_MMX2
+#endif
+
+#if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
+#define COMPILE_3DNOW
+#endif
+#endif //ARCH_X86
+
+#undef HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#undef ARCH_X86
+
+#ifdef COMPILE_C
+#undef HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#undef ARCH_X86
+#define RENAME(a) a ## _C
+#include "postprocess_template.c"
+#endif
+
+//MMX versions
+#ifdef COMPILE_MMX
+#undef RENAME
+#define HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#define ARCH_X86
+#define RENAME(a) a ## _MMX
+#include "postprocess_template.c"
+#endif
+
+//MMX2 versions
+#ifdef COMPILE_MMX2
+#undef RENAME
+#define HAVE_MMX
+#define HAVE_MMX2
+#undef HAVE_3DNOW
+#define ARCH_X86
+#define RENAME(a) a ## _MMX2
+#include "postprocess_template.c"
+#endif
+
+//3DNOW versions
+#ifdef COMPILE_3DNOW
+#undef RENAME
+#define HAVE_MMX
+#undef HAVE_MMX2
+#define HAVE_3DNOW
+#define ARCH_X86
+#define RENAME(a) a ## _3DNow
+#include "postprocess_template.c"
+#endif
+
+// minor note: the HAVE_xyz is messed up after that line so dont use it
+
+static inline void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,
+	QP_STORE_T QPs[], int QPStride, int isColor, pp_mode_t *vm, pp_context_t *vc)
+{
+	PPContext *c= (PPContext *)vc;
+	PPMode *ppMode= (PPMode *)vm;
+	c->ppMode= *ppMode; //FIXME
+
+	// useing ifs here as they are faster than function pointers allthough the
+	// difference wouldnt be messureable here but its much better because
+	// someone might exchange the cpu whithout restarting mplayer ;)
+#ifdef RUNTIME_CPUDETECT
+#ifdef ARCH_X86
+	// ordered per speed fasterst first
+	if(c->cpuCaps & PP_CPU_CAPS_MMX2)
+		postProcess_MMX2(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+	else if(c->cpuCaps & PP_CPU_CAPS_3DNOW)
+		postProcess_3DNow(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+	else if(c->cpuCaps & PP_CPU_CAPS_MMX)
+		postProcess_MMX(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+	else
+		postProcess_C(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+#else
+		postProcess_C(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+#endif
+#else //RUNTIME_CPUDETECT
+#ifdef HAVE_MMX2
+		postProcess_MMX2(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+#elif defined (HAVE_3DNOW)
+		postProcess_3DNow(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+#elif defined (HAVE_MMX)
+		postProcess_MMX(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+#else
+		postProcess_C(src, srcStride, dst, dstStride, width, height, QPs, QPStride, isColor, c);
+#endif
+#endif //!RUNTIME_CPUDETECT
+}
+
+//static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height,
+//	QP_STORE_T QPs[], int QPStride, int isColor, struct PPMode *ppMode);
+
+/* -pp Command line Help
+*/
+char *pp_help=
+"<filterName>[:<option>[:<option>...]][[,|/][-]<filterName>[:<option>...]]...\n"
+"long form example:\n"
+"vdeblock:autoq/hdeblock:autoq/linblenddeint	default,-vdeblock\n"
+"short form example:\n"
+"vb:a/hb:a/lb					de,-vb\n"
+"more examples:\n"
+"tn:64:128:256\n"
+"Filters			Options\n"
+"short	long name	short	long option	Description\n"
+"*	*		a	autoq		cpu power dependant enabler\n"
+"			c	chrom		chrominance filtring enabled\n"
+"			y	nochrom		chrominance filtring disabled\n"
+"hb	hdeblock	(2 Threshold)		horizontal deblocking filter\n"
+"	1. difference factor: default=64, higher -> more deblocking\n"
+"	2. flatness threshold: default=40, lower -> more deblocking\n"
+"			the h & v deblocking filters share these\n"
+"			so u cant set different thresholds for h / v\n"
+"vb	vdeblock	(2 Threshold)		vertical deblocking filter\n"
+"h1	x1hdeblock				Experimental h deblock filter 1\n"
+"v1	x1vdeblock				Experimental v deblock filter 1\n"
+"dr	dering					Deringing filter\n"
+"al	autolevels				automatic brightness / contrast\n"
+"			f	fullyrange	stretch luminance to (0..255)\n"
+"lb	linblenddeint				linear blend deinterlacer\n"
+"li	linipoldeint				linear interpolating deinterlace\n"
+"ci	cubicipoldeint				cubic interpolating deinterlacer\n"
+"md	mediandeint				median deinterlacer\n"
+"fd	ffmpegdeint				ffmpeg deinterlacer\n"
+"de	default					hb:a,vb:a,dr:a,al\n"
+"fa	fast					h1:a,v1:a,dr:a,al\n"
+"tn	tmpnoise	(3 Thresholds)		Temporal Noise Reducer\n"
+"			1. <= 2. <= 3.		larger -> stronger filtering\n"
+"fq	forceQuant	<quantizer>		Force quantizer\n"
+;
+
+pp_mode_t *pp_get_mode_by_name_and_quality(char *name, int quality)
+{
+	char temp[GET_MODE_BUFFER_SIZE];
+	char *p= temp;
+	char *filterDelimiters= ",/";
+	char *optionDelimiters= ":";
+	struct PPMode *ppMode;
+	char *filterToken;
+
+	ppMode= memalign(8, sizeof(PPMode));
+	
+	ppMode->lumMode= 0;
+	ppMode->chromMode= 0;
+	ppMode->maxTmpNoise[0]= 700;
+	ppMode->maxTmpNoise[1]= 1500;
+	ppMode->maxTmpNoise[2]= 3000;
+	ppMode->maxAllowedY= 234;
+	ppMode->minAllowedY= 16;
+	ppMode->baseDcDiff= 256/4;
+	ppMode->flatnessThreshold= 56-16;
+	ppMode->maxClippedThreshold= 0.01;
+	ppMode->error=0;
+
+	strncpy(temp, name, GET_MODE_BUFFER_SIZE);
+
+	if(verbose>1) printf("pp: %s\n", name);
+
+	for(;;){
+		char *filterName;
+		int q= 1000000; //PP_QUALITY_MAX;
+		int chrom=-1;
+		char *option;
+		char *options[OPTIONS_ARRAY_SIZE];
+		int i;
+		int filterNameOk=0;
+		int numOfUnknownOptions=0;
+		int enable=1; //does the user want us to enabled or disabled the filter
+
+		filterToken= strtok(p, filterDelimiters);
+		if(filterToken == NULL) break;
+		p+= strlen(filterToken) + 1; // p points to next filterToken
+		filterName= strtok(filterToken, optionDelimiters);
+		if(verbose>1) printf("pp: %s::%s\n", filterToken, filterName);
+
+		if(*filterName == '-')
+		{
+			enable=0;
+			filterName++;
+		}
+
+		for(;;){ //for all options
+			option= strtok(NULL, optionDelimiters);
+			if(option == NULL) break;
+
+			if(verbose>1) printf("pp: option: %s\n", option);
+			if(!strcmp("autoq", option) || !strcmp("a", option)) q= quality;
+			else if(!strcmp("nochrom", option) || !strcmp("y", option)) chrom=0;
+			else if(!strcmp("chrom", option) || !strcmp("c", option)) chrom=1;
+			else
+			{
+				options[numOfUnknownOptions] = option;
+				numOfUnknownOptions++;
+			}
+			if(numOfUnknownOptions >= OPTIONS_ARRAY_SIZE-1) break;
+		}
+		options[numOfUnknownOptions] = NULL;
+
+		/* replace stuff from the replace Table */
+		for(i=0; replaceTable[2*i]!=NULL; i++)
+		{
+			if(!strcmp(replaceTable[2*i], filterName))
+			{
+				int newlen= strlen(replaceTable[2*i + 1]);
+				int plen;
+				int spaceLeft;
+
+				if(p==NULL) p= temp, *p=0; 	//last filter
+				else p--, *p=',';		//not last filter
+
+				plen= strlen(p);
+				spaceLeft= p - temp + plen;
+				if(spaceLeft + newlen  >= GET_MODE_BUFFER_SIZE)
+				{
+					ppMode->error++;
+					break;
+				}
+				memmove(p + newlen, p, plen+1);
+				memcpy(p, replaceTable[2*i + 1], newlen);
+				filterNameOk=1;
+			}
+		}
+
+		for(i=0; filters[i].shortName!=NULL; i++)
+		{
+//			printf("Compareing %s, %s, %s\n", filters[i].shortName,filters[i].longName, filterName);
+			if(   !strcmp(filters[i].longName, filterName)
+			   || !strcmp(filters[i].shortName, filterName))
+			{
+				ppMode->lumMode &= ~filters[i].mask;
+				ppMode->chromMode &= ~filters[i].mask;
+
+				filterNameOk=1;
+				if(!enable) break; // user wants to disable it
+
+				if(q >= filters[i].minLumQuality)
+					ppMode->lumMode|= filters[i].mask;
+				if(chrom==1 || (chrom==-1 && filters[i].chromDefault))
+					if(q >= filters[i].minChromQuality)
+						ppMode->chromMode|= filters[i].mask;
+
+				if(filters[i].mask == LEVEL_FIX)
+				{
+					int o;
+					ppMode->minAllowedY= 16;
+					ppMode->maxAllowedY= 234;
+					for(o=0; options[o]!=NULL; o++)
+					{
+						if(  !strcmp(options[o],"fullyrange")
+						   ||!strcmp(options[o],"f"))
+						{
+							ppMode->minAllowedY= 0;
+							ppMode->maxAllowedY= 255;
+							numOfUnknownOptions--;
+						}
+					}
+				}
+				else if(filters[i].mask == TEMP_NOISE_FILTER)
+				{
+					int o;
+					int numOfNoises=0;
+
+					for(o=0; options[o]!=NULL; o++)
+					{
+						char *tail;
+						ppMode->maxTmpNoise[numOfNoises]=
+							strtol(options[o], &tail, 0);
+						if(tail!=options[o])
+						{
+							numOfNoises++;
+							numOfUnknownOptions--;
+							if(numOfNoises >= 3) break;
+						}
+					}
+				}
+				else if(filters[i].mask == V_DEBLOCK || filters[i].mask == H_DEBLOCK)
+				{
+					int o;
+
+					for(o=0; options[o]!=NULL && o<2; o++)
+					{
+						char *tail;
+						int val= strtol(options[o], &tail, 0);
+						if(tail==options[o]) break;
+
+						numOfUnknownOptions--;
+						if(o==0) ppMode->baseDcDiff= val;
+						else ppMode->flatnessThreshold= val;
+					}
+				}
+				else if(filters[i].mask == FORCE_QUANT)
+				{
+					int o;
+					ppMode->forcedQuant= 15;
+
+					for(o=0; options[o]!=NULL && o<1; o++)
+					{
+						char *tail;
+						int val= strtol(options[o], &tail, 0);
+						if(tail==options[o]) break;
+
+						numOfUnknownOptions--;
+						ppMode->forcedQuant= val;
+					}
+				}
+			}
+		}
+		if(!filterNameOk) ppMode->error++;
+		ppMode->error += numOfUnknownOptions;
+	}
+
+	if(verbose>1) printf("pp: lumMode=%X, chromMode=%X\n", ppMode->lumMode, ppMode->chromMode);
+	if(ppMode->error)
+	{
+		fprintf(stderr, "%d errors in postprocess string \"%s\"\n", ppMode->error, name);
+		free(ppMode);
+		return NULL;
+	}
+	return ppMode;
+}
+
+void pp_free_mode(pp_mode_t *mode){
+    if(mode) free(mode);
+}
+
+static void reallocAlign(void **p, int alignment, int size){
+	if(*p) free(*p);
+	*p= memalign(alignment, size);
+	memset(*p, 0, size);
+}
+
+static void reallocBuffers(PPContext *c, int width, int height, int stride){
+	int mbWidth = (width+15)>>4;
+	int mbHeight= (height+15)>>4;
+	int i;
+
+	c->stride= stride;
+
+	reallocAlign((void **)&c->tempDst, 8, stride*24);
+	reallocAlign((void **)&c->tempSrc, 8, stride*24);
+	reallocAlign((void **)&c->tempBlocks, 8, 2*16*8);
+	reallocAlign((void **)&c->yHistogram, 8, 256*sizeof(uint64_t));
+	for(i=0; i<256; i++)
+		c->yHistogram[i]= width*height/64*15/256;
+
+	for(i=0; i<3; i++)
+	{
+		//Note:the +17*1024 is just there so i dont have to worry about r/w over te end
+		reallocAlign((void **)&c->tempBlured[i], 8, stride*mbHeight*16 + 17*1024);
+		reallocAlign((void **)&c->tempBluredPast[i], 8, 256*((height+7)&(~7))/2 + 17*1024);//FIXME size
+	}
+
+	reallocAlign((void **)&c->deintTemp, 8, width+16);
+	reallocAlign((void **)&c->nonBQPTable, 8, mbWidth*mbHeight*sizeof(QP_STORE_T));
+	reallocAlign((void **)&c->forcedQPTable, 8, mbWidth*sizeof(QP_STORE_T));
+}
+
+pp_context_t *pp_get_context(int width, int height, int cpuCaps){
+	PPContext *c= memalign(32, sizeof(PPContext));
+	int i;
+	int stride= (width+15)&(~15); //assumed / will realloc if needed
+        
+	memset(c, 0, sizeof(PPContext));
+	c->cpuCaps= cpuCaps;
+	if(cpuCaps&PP_FORMAT){
+		c->hChromaSubSample= cpuCaps&0x3;
+		c->vChromaSubSample= (cpuCaps>>4)&0x3;
+	}else{
+		c->hChromaSubSample= 1;
+		c->vChromaSubSample= 1;
+	}
+
+	reallocBuffers(c, width, height, stride);
+        
+	c->frameNum=-1;
+
+	return c;
+}
+
+void pp_free_context(void *vc){
+	PPContext *c = (PPContext*)vc;
+	int i;
+	
+	for(i=0; i<3; i++) free(c->tempBlured[i]);
+	for(i=0; i<3; i++) free(c->tempBluredPast[i]);
+	
+	free(c->tempBlocks);
+	free(c->yHistogram);
+	free(c->tempDst);
+	free(c->tempSrc);
+	free(c->deintTemp);
+	free(c->nonBQPTable);
+	free(c->forcedQPTable);
+        
+	memset(c, 0, sizeof(PPContext));
+
+	free(c);
+}
+
+void  pp_postprocess(uint8_t * src[3], int srcStride[3],
+                 uint8_t * dst[3], int dstStride[3],
+                 int width, int height,
+                 QP_STORE_T *QP_store,  int QPStride,
+		 pp_mode_t *vm,  void *vc, int pict_type)
+{
+	int mbWidth = (width+15)>>4;
+	int mbHeight= (height+15)>>4;
+	PPMode *mode = (PPMode*)vm;
+	PPContext *c = (PPContext*)vc;
+        int minStride= MAX(srcStride[0], dstStride[0]);
+	
+	if(c->stride < minStride)
+		reallocBuffers(c, width, height, minStride);
+
+	if(QP_store==NULL || (mode->lumMode & FORCE_QUANT)) 
+	{
+		int i;
+		QP_store= c->forcedQPTable;
+		QPStride= 0;
+		if(mode->lumMode & FORCE_QUANT)
+			for(i=0; i<mbWidth; i++) QP_store[i]= mode->forcedQuant;
+		else
+			for(i=0; i<mbWidth; i++) QP_store[i]= 1;
+	}
+if(0){
+int x,y;
+for(y=0; y<mbHeight; y++){
+	for(x=0; x<mbWidth; x++){
+		printf("%2d ", QP_store[x + y*QPStride]);
+	}
+	printf("\n");
+}
+	printf("\n");
+}
+//printf("pict_type:%d\n", pict_type);
+
+	if(pict_type!=3)
+	{
+		int x,y;
+		for(y=0; y<mbHeight; y++){
+			for(x=0; x<mbWidth; x++){
+				int qscale= QP_store[x + y*QPStride];
+				if(qscale&~31)
+				    qscale=31;
+				c->nonBQPTable[y*mbWidth + x]= qscale;
+			}
+		}
+	}
+
+	if(verbose>2)
+	{
+		printf("using npp filters 0x%X/0x%X\n", mode->lumMode, mode->chromMode);
+	}
+
+	postProcess(src[0], srcStride[0], dst[0], dstStride[0],
+		width, height, QP_store, QPStride, 0, mode, c);
+
+	width  = (width )>>c->hChromaSubSample;
+	height = (height)>>c->vChromaSubSample;
+
+	if(mode->chromMode)
+	{
+		postProcess(src[1], srcStride[1], dst[1], dstStride[1],
+			width, height, QP_store, QPStride, 1, mode, c);
+		postProcess(src[2], srcStride[2], dst[2], dstStride[2],
+			width, height, QP_store, QPStride, 2, mode, c);
+	}
+	else if(srcStride[1] == dstStride[1] && srcStride[2] == dstStride[2])
+	{
+		memcpy(dst[1], src[1], srcStride[1]*height);
+		memcpy(dst[2], src[2], srcStride[2]*height);
+	}
+	else
+	{
+		int y;
+		for(y=0; y<height; y++)
+		{
+			memcpy(&(dst[1][y*dstStride[1]]), &(src[1][y*srcStride[1]]), width);
+			memcpy(&(dst[2][y*dstStride[2]]), &(src[2][y*srcStride[2]]), width);
+		}
+	}
+}
+