update

[libav.git] / postproc / postprocess.c

/*
    Copyright (C) 2001-2002 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#	 	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:
remove global/static vars
reduce the time wasted on the mem transfer
unroll stuff if instructions depend too much on the prior one
we use 8x8 blocks for the horizontal filters, opendivx seems to use 8x4?
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
put fastmemcpy back
...
*/

//Changelog: use the CVS log

#include "../config.h"
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
//#undef HAVE_MMX2
//#define HAVE_3DNOW
//#undef HAVE_MMX
//#undef ARCH_X86
//#define DEBUG_BRIGHTNESS
#include "../libvo/fastmemcpy.h"
#include "postprocess.h"
#include "../cpudetect.h"
#include "../mangle.h"

#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

extern int divx_quality;
static int firstTime2 = 0;

extern int verbose;

int deringThreshold= 20;

//amount of "black" u r willing to loose to get a brightness corrected picture
double maxClippedThreshold= 0.01;

struct PPFilter{
	char *shortName;
	char *longName;
	int chromDefault; 	// is chrominance filtering on by default if this filter is manually activated
	int minLumQuality; 	// minimum quality to turn luminance filtering on
	int minChromQuality;	// minimum quality to turn chrominance filtering on
	int mask; 		// Bitmask to turn this filter on
};

typedef struct PPContext{
	uint8_t *tempBlocks; //used for the horizontal code