]> git.sesse.net Git - ffmpeg/blobdiff - postproc/swscale.c
simplify the init
[ffmpeg] / postproc / swscale.c
index 0f58c4d75651d79f48d5fbb2449e2af130591c4f..891352121c4e2696a9fb37ebd94d07024f484bee 100644 (file)
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2001-2002 Michael Niedermayer <michaelni@gmx.at>
+    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
 */
 
 /*
-  supported Input formats: YV12, I420/IYUV, YUY2, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09
-  supported output formats: YV12, I420/IYUV, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
-  BGR15/16 support dithering
+  supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09
+  supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
+  {BGR,RGB}{1,4,8,15,16} support dithering
   
-  unscaled special converters
-  YV12/I420/IYUV -> BGR15/BGR16/BGR24/BGR32
-  YV12/I420/IYUV -> YV12/I420/IYUV
-  YUY2/BGR15/BGR16/BGR24/BGR32/RGB24/RGB32 -> same format
+  unscaled special converters (YV12=I420=IYUV, Y800=Y8)
+  YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
+  x -> x
+  YUV9 -> YV12
+  YUV9/YV12 -> Y800
+  Y800 -> YUV9/YV12
   BGR24 -> BGR32 & RGB24 -> RGB32
   BGR32 -> BGR24 & RGB32 -> RGB24
   BGR15 -> BGR16
 */
 
 /* 
-tested special converters
- YV12/I420 -> BGR16
+tested special converters (most are tested actually but i didnt write it down ...)
+ YV12 -> BGR16
  YV12 -> YV12
  BGR15 -> BGR16
  BGR16 -> BGR16
+ YVU9 -> YV12
 
 untested special converters
   YV12/I420 -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
@@ -58,20 +61,16 @@ untested special converters
 #else
 #include <stdlib.h>
 #endif
+#ifdef HAVE_ALTIVEC_H
+#include <altivec.h>
+#endif
 #include "swscale.h"
+#include "swscale_internal.h"
 #include "../cpudetect.h"
 #include "../bswap.h"
 #include "../libvo/img_format.h"
 #include "rgb2rgb.h"
 #include "../libvo/fastmemcpy.h"
-#include "../mp_msg.h"
-
-#define MSG_WARN(args...) mp_msg(MSGT_SWS,MSGL_WARN, ##args )
-#define MSG_FATAL(args...) mp_msg(MSGT_SWS,MSGL_FATAL, ##args )
-#define MSG_ERR(args...) mp_msg(MSGT_SWS,MSGL_ERR, ##args )
-#define MSG_V(args...) mp_msg(MSGT_SWS,MSGL_V, ##args )
-#define MSG_DBG2(args...) mp_msg(MSGT_SWS,MSGL_DBG2, ##args )
-#define MSG_INFO(args...) mp_msg(MSGT_SWS,MSGL_INFO, ##args )
 
 #undef MOVNTQ
 #undef PAVGB
@@ -100,19 +99,22 @@ untested special converters
 #endif
 
 //FIXME replace this with something faster
-#define isPlanarYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_YVU9)
-#define isYUV(x)       ((x)==IMGFMT_YUY2 || isPlanarYUV(x))
+#define isPlanarYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_YVU9 \
+                       || (x)==IMGFMT_444P || (x)==IMGFMT_422P || (x)==IMGFMT_411P)
+#define isYUV(x)       ((x)==IMGFMT_UYVY || (x)==IMGFMT_YUY2 || isPlanarYUV(x))
 #define isGray(x)      ((x)==IMGFMT_Y800)
 #define isRGB(x)       (((x)&IMGFMT_RGB_MASK)==IMGFMT_RGB)
 #define isBGR(x)       (((x)&IMGFMT_BGR_MASK)==IMGFMT_BGR)
-#define isSupportedIn(x)  ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_YUY2 \
+#define isSupportedIn(x)  ((x)==IMGFMT_YV12 || (x)==IMGFMT_YUY2 || (x)==IMGFMT_UYVY\
                        || (x)==IMGFMT_BGR32|| (x)==IMGFMT_BGR24|| (x)==IMGFMT_BGR16|| (x)==IMGFMT_BGR15\
                        || (x)==IMGFMT_RGB32|| (x)==IMGFMT_RGB24\
-                       || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9)
-#define isSupportedOut(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 \
+                       || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9\
+                       || (x)==IMGFMT_444P || (x)==IMGFMT_422P || (x)==IMGFMT_411P)
+#define isSupportedOut(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_YUY2 || (x)==IMGFMT_UYVY\
+                       || (x)==IMGFMT_444P || (x)==IMGFMT_422P || (x)==IMGFMT_411P\
                        || isRGB(x) || isBGR(x)\
                        || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9)
-#define isPacked(x)    ((x)==IMGFMT_YUY2 || isRGB(x) || isBGR(x))
+#define isPacked(x)    ((x)==IMGFMT_YUY2 || (x)==IMGFMT_UYVY ||isRGB(x) || isBGR(x))
 
 #define RGB2YUV_SHIFT 16
 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
@@ -125,7 +127,8 @@ untested special converters
 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
 
-extern int verbose; // defined in mplayer.c
+extern const int32_t Inverse_Table_6_9[8][4];
+
 /*
 NOTES
 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
@@ -139,7 +142,6 @@ add support for Y8 output
 optimize bgr24 & bgr32
 add BGR4 output support
 write special BGR->BGR scaler
-deglobalize yuv2rgb*.c
 */
 
 #define ABS(a) ((a) > 0 ? (a) : (-(a)))
@@ -147,30 +149,19 @@ deglobalize yuv2rgb*.c
 #define MAX(a,b) ((a) < (b) ? (b) : (a))
 
 #ifdef ARCH_X86
-#define CAN_COMPILE_X86_ASM
-#endif
-
-#ifdef CAN_COMPILE_X86_ASM
-static uint64_t __attribute__((aligned(8))) yCoeff=    0x2568256825682568LL;
-static uint64_t __attribute__((aligned(8))) vrCoeff=   0x3343334333433343LL;
-static uint64_t __attribute__((aligned(8))) ubCoeff=   0x40cf40cf40cf40cfLL;
-static uint64_t __attribute__((aligned(8))) vgCoeff=   0xE5E2E5E2E5E2E5E2LL;
-static uint64_t __attribute__((aligned(8))) ugCoeff=   0xF36EF36EF36EF36ELL;
-static uint64_t __attribute__((aligned(8))) bF8=       0xF8F8F8F8F8F8F8F8LL;
-static uint64_t __attribute__((aligned(8))) bFC=       0xFCFCFCFCFCFCFCFCLL;
-static uint64_t __attribute__((aligned(8))) w400=      0x0400040004000400LL;
-static uint64_t __attribute__((aligned(8))) w80=       0x0080008000800080LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bF8=       0xF8F8F8F8F8F8F8F8LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bFC=       0xFCFCFCFCFCFCFCFCLL;
 static uint64_t __attribute__((aligned(8))) w10=       0x0010001000100010LL;
-static uint64_t __attribute__((aligned(8))) w02=       0x0002000200020002LL;
-static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
-static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
-static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
-static uint64_t __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) w02=       0x0002000200020002LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
 
-static volatile uint64_t __attribute__((aligned(8))) b5Dither;
-static volatile uint64_t __attribute__((aligned(8))) g5Dither;
-static volatile uint64_t __attribute__((aligned(8))) g6Dither;
-static volatile uint64_t __attribute__((aligned(8))) r5Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
 
 static uint64_t __attribute__((aligned(8))) dither4[2]={
        0x0103010301030103LL,
@@ -181,194 +172,51 @@ static uint64_t __attribute__((aligned(8))) dither8[2]={
        0x0004000400040004LL,};
 
 static uint64_t __attribute__((aligned(8))) b16Mask=   0x001F001F001F001FLL;
-static uint64_t __attribute__((aligned(8))) g16Mask=   0x07E007E007E007E0LL;
-static uint64_t __attribute__((aligned(8))) r16Mask=   0xF800F800F800F800LL;
+static uint64_t attribute_used __attribute__((aligned(8))) g16Mask=   0x07E007E007E007E0LL;
+static uint64_t attribute_used __attribute__((aligned(8))) r16Mask=   0xF800F800F800F800LL;
 static uint64_t __attribute__((aligned(8))) b15Mask=   0x001F001F001F001FLL;
-static uint64_t __attribute__((aligned(8))) g15Mask=   0x03E003E003E003E0LL;
-static uint64_t __attribute__((aligned(8))) r15Mask=   0x7C007C007C007C00LL;
+static uint64_t attribute_used __attribute__((aligned(8))) g15Mask=   0x03E003E003E003E0LL;
+static uint64_t attribute_used __attribute__((aligned(8))) r15Mask=   0x7C007C007C007C00LL;
 
-static uint64_t __attribute__((aligned(8))) M24A=   0x00FF0000FF0000FFLL;
-static uint64_t __attribute__((aligned(8))) M24B=   0xFF0000FF0000FF00LL;
-static uint64_t __attribute__((aligned(8))) M24C=   0x0000FF0000FF0000LL;
+static uint64_t attribute_used __attribute__((aligned(8))) M24A=   0x00FF0000FF0000FFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) M24B=   0xFF0000FF0000FF00LL;
+static uint64_t attribute_used __attribute__((aligned(8))) M24C=   0x0000FF0000FF0000LL;
 
 #ifdef FAST_BGR2YV12
-static const uint64_t bgr2YCoeff  __attribute__((aligned(8))) = 0x000000210041000DULL;
-static const uint64_t bgr2UCoeff  __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
-static const uint64_t bgr2VCoeff  __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
+static const uint64_t bgr2YCoeff  attribute_used __attribute__((aligned(8))) = 0x000000210041000DULL;
+static const uint64_t bgr2UCoeff  attribute_used __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
+static const uint64_t bgr2VCoeff  attribute_used __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
 #else
-static const uint64_t bgr2YCoeff  __attribute__((aligned(8))) = 0x000020E540830C8BULL;
-static const uint64_t bgr2UCoeff  __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
-static const uint64_t bgr2VCoeff  __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
+static const uint64_t bgr2YCoeff  attribute_used __attribute__((aligned(8))) = 0x000020E540830C8BULL;
+static const uint64_t bgr2UCoeff  attribute_used __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
+static const uint64_t bgr2VCoeff  attribute_used __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
 #endif
-static const uint64_t bgr2YOffset __attribute__((aligned(8))) = 0x1010101010101010ULL;
-static const uint64_t bgr2UVOffset __attribute__((aligned(8)))= 0x8080808080808080ULL;
-static const uint64_t w1111       __attribute__((aligned(8))) = 0x0001000100010001ULL;
+static const uint64_t bgr2YOffset attribute_used __attribute__((aligned(8))) = 0x1010101010101010ULL;
+static const uint64_t bgr2UVOffset attribute_used __attribute__((aligned(8)))= 0x8080808080808080ULL;
+static const uint64_t w1111       attribute_used __attribute__((aligned(8))) = 0x0001000100010001ULL;
 #endif
 
 // clipping helper table for C implementations:
 static unsigned char clip_table[768];
 
-//global sws_flags from the command line
-int sws_flags=2;
-
-//global srcFilter
-SwsFilter src_filter= {NULL, NULL, NULL, NULL};
-
-float sws_lum_gblur= 0.0;
-float sws_chr_gblur= 0.0;
-int sws_chr_vshift= 0;
-int sws_chr_hshift= 0;
-float sws_chr_sharpen= 0.0;
-float sws_lum_sharpen= 0.0;
-
-/* cpuCaps combined from cpudetect and whats actually compiled in
-   (if there is no support for something compiled in it wont appear here) */
-static CpuCaps cpuCaps;
-
-void (*swScale)(SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[])=NULL;
-
-static SwsVector *getConvVec(SwsVector *a, SwsVector *b);
-static inline void orderYUV(int format, uint8_t * sortedP[], int sortedStride[], uint8_t * p[], int stride[]);
-void *yuv2rgb_c_init (unsigned bpp, int mode, void *table_rV[256], void *table_gU[256], int table_gV[256], void *table_bU[256]);
-
+static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
+                 
 extern const uint8_t dither_2x2_4[2][8];
 extern const uint8_t dither_2x2_8[2][8];
 extern const uint8_t dither_8x8_32[8][8];
 extern const uint8_t dither_8x8_73[8][8];
 extern const uint8_t dither_8x8_220[8][8];
 
-#ifdef CAN_COMPILE_X86_ASM
+#ifdef ARCH_X86
 void in_asm_used_var_warning_killer()
 {
- volatile int i= yCoeff+vrCoeff+ubCoeff+vgCoeff+ugCoeff+bF8+bFC+w400+w80+w10+
+ volatile int i= bF8+bFC+w10+
  bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+
  M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
  if(i) i=0;
 }
 #endif
 
-static int testFormat[]={
-IMGFMT_YVU9,
-IMGFMT_YV12,
-//IMGFMT_IYUV,
-IMGFMT_I420,
-IMGFMT_BGR15,
-IMGFMT_BGR16,
-IMGFMT_BGR24,
-IMGFMT_BGR32,
-IMGFMT_RGB24,
-IMGFMT_RGB32,
-//IMGFMT_Y8,
-IMGFMT_Y800,
-//IMGFMT_YUY2,
-0
-};
-
-static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h){
-       int x,y;
-       uint64_t ssd=0;
-
-       for(y=0; y<h; y++){
-               for(x=0; x<w; x++){
-                       int d= src1[x + y*stride1] - src2[x + y*stride2];
-                       ssd+= d*d;
-               }
-       }
-       return ssd;
-}
-
-// test by ref -> src -> dst -> out & compare out against ref
-// ref & out are YV12
-static void doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat, 
-                   int srcW, int srcH, int dstW, int dstH, int flags){
-       uint8_t *src[3];
-       uint8_t *dst[3];
-       uint8_t *out[3];
-       int srcStride[3], dstStride[3];
-       int i;
-       uint64_t ssdY, ssdU, ssdV;
-       SwsContext *srcContext, *dstContext, *outContext;
-       
-       for(i=0; i<3; i++){
-               srcStride[i]= srcW*4;
-               dstStride[i]= dstW*4;
-               src[i]= malloc(srcStride[i]*srcH);
-               dst[i]= malloc(dstStride[i]*dstH);
-               out[i]= malloc(refStride[i]*h);
-       }
-
-       srcContext= getSwsContext(w, h, IMGFMT_YV12, srcW, srcH, srcFormat, flags, NULL, NULL);
-       dstContext= getSwsContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL);
-       outContext= getSwsContext(dstW, dstH, dstFormat, w, h, IMGFMT_YV12, flags, NULL, NULL);
-       if(srcContext==NULL ||dstContext==NULL ||outContext==NULL){
-               printf("Failed allocating swsContext\n");
-               goto end;
-       }
-//     printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
-//             (int)src[0], (int)src[1], (int)src[2]);
-
-       srcContext->swScale(srcContext, ref, refStride, 0, h   , src, srcStride);
-       dstContext->swScale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
-       outContext->swScale(outContext, dst, dstStride, 0, dstH, out, refStride);
-            
-       ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
-       ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
-       ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
-       
-       if(isGray(srcFormat) || isGray(dstFormat)) ssdU=ssdV=0; //FIXME check that output is really gray
-       
-       ssdY/= w*h;
-       ssdU/= w*h/4;
-       ssdV/= w*h/4;
-       
-       if(ssdY>100 || ssdU>50 || ssdV>50){
-               printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld\n", 
-                       vo_format_name(srcFormat), srcW, srcH, 
-                       vo_format_name(dstFormat), dstW, dstH,
-                       flags,
-                       ssdY, ssdU, ssdV);
-       }
-
-       end:
-       
-       freeSwsContext(srcContext);
-       freeSwsContext(dstContext);
-       freeSwsContext(outContext);
-
-       for(i=0; i<3; i++){
-               free(src[i]);
-               free(dst[i]);
-               free(out[i]);
-       }
-}
-
-static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
-       int srcFormat, dstFormat, srcFormatIndex, dstFormatIndex;
-       int srcW, srcH, dstW, dstH;
-       int flags;
-
-       for(srcFormatIndex=0; ;srcFormatIndex++){
-               srcFormat= testFormat[srcFormatIndex];
-               if(!srcFormat) break;
-               for(dstFormatIndex=0; ;dstFormatIndex++){
-                       dstFormat= testFormat[dstFormatIndex];
-                       if(!dstFormat) break;
-                       if(!isSupportedOut(dstFormat)) continue;
-
-                       srcW= w+w/3;
-                       srcH= h+h/3;
-                       for(dstW=w; dstW<w*2; dstW+= dstW/3){
-                               for(dstH=h; dstH<h*2; dstH+= dstH/3){
-                                       for(flags=1; flags<33; flags*=2)
-                                               doTest(src, stride, w, h, srcFormat, dstFormat,
-                                                       srcW, srcH, dstW, dstH, flags);
-                               }
-                       }
-               }
-       }
-}
-
 static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
                                    int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                    uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
@@ -377,7 +225,7 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
        int i;
        for(i=0; i<dstW; i++)
        {
-               int val=0;
+               int val=1<<18;
                int j;
                for(j=0; j<lumFilterSize; j++)
                        val += lumSrc[j][i] * lumFilter[j];
@@ -388,8 +236,8 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
        if(uDest != NULL)
                for(i=0; i<chrDstW; i++)
                {
-                       int u=0;
-                       int v=0;
+                       int u=1<<18;
+                       int v=1<<18;
                        int j;
                        for(j=0; j<chrFilterSize; j++)
                        {
@@ -402,13 +250,14 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
                }
 }
 
-#define YSCALE_YUV_2_RGBX_C(type) \
+
+#define YSCALE_YUV_2_PACKEDX_C(type) \
                for(i=0; i<(dstW>>1); i++){\
                        int j;\
-                       int Y1=0;\
-                       int Y2=0;\
-                       int U=0;\
-                       int V=0;\
+                       int Y1=1<<18;\
+                       int Y2=1<<18;\
+                       int U=1<<18;\
+                       int V=1<<18;\
                        type *r, *b, *g;\
                        const int i2= 2*i;\
                        \
@@ -436,48 +285,60 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
                                else if(U<0) U=0;\
                                if(V>255)    V=255;\
                                else if(V<0) V=0;\
-                       }\
+                       }
+                        
+#define YSCALE_YUV_2_RGBX_C(type) \
+                       YSCALE_YUV_2_PACKEDX_C(type)\
                        r = c->table_rV[V];\
                        g = c->table_gU[U] + c->table_gV[V];\
                        b = c->table_bU[U];\
 
-#define YSCALE_YUV_2_RGB2_C(type) \
+#define YSCALE_YUV_2_PACKED2_C \
                for(i=0; i<(dstW>>1); i++){\
                        const int i2= 2*i;\
                        int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>19;\
                        int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;\
                        int U= (uvbuf0[i     ]*uvalpha1+uvbuf1[i     ]*uvalpha)>>19;\
                        int V= (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;\
+
+#define YSCALE_YUV_2_RGB2_C(type) \
+                       YSCALE_YUV_2_PACKED2_C\
                        type *r, *b, *g;\
                        r = c->table_rV[V];\
                        g = c->table_gU[U] + c->table_gV[V];\
                        b = c->table_bU[U];\
 
-#define YSCALE_YUV_2_RGB1_C(type) \
+#define YSCALE_YUV_2_PACKED1_C \
                for(i=0; i<(dstW>>1); i++){\
                        const int i2= 2*i;\
                        int Y1= buf0[i2  ]>>7;\
                        int Y2= buf0[i2+1]>>7;\
                        int U= (uvbuf1[i     ])>>7;\
                        int V= (uvbuf1[i+2048])>>7;\
+
+#define YSCALE_YUV_2_RGB1_C(type) \
+                       YSCALE_YUV_2_PACKED1_C\
                        type *r, *b, *g;\
                        r = c->table_rV[V];\
                        g = c->table_gU[U] + c->table_gV[V];\
                        b = c->table_bU[U];\
 
-#define YSCALE_YUV_2_RGB1B_C(type) \
+#define YSCALE_YUV_2_PACKED1B_C \
                for(i=0; i<(dstW>>1); i++){\
                        const int i2= 2*i;\
                        int Y1= buf0[i2  ]>>7;\
                        int Y2= buf0[i2+1]>>7;\
                        int U= (uvbuf0[i     ] + uvbuf1[i     ])>>8;\
                        int V= (uvbuf0[i+2048] + uvbuf1[i+2048])>>8;\
+
+#define YSCALE_YUV_2_RGB1B_C(type) \
+                       YSCALE_YUV_2_PACKED1B_C\
                        type *r, *b, *g;\
                        r = c->table_rV[V];\
                        g = c->table_gU[U] + c->table_gV[V];\
                        b = c->table_bU[U];\
 
-#define YSCALE_YUV_2_ANYRGB_C(func)\
+#define YSCALE_YUV_2_ANYRGB_C(func, func2)\
        switch(c->dstFormat)\
        {\
        case IMGFMT_BGR32:\
@@ -495,7 +356,7 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
                        ((uint8_t*)dest)[3]= r[Y2];\
                        ((uint8_t*)dest)[4]= g[Y2];\
                        ((uint8_t*)dest)[5]= b[Y2];\
-                       ((uint8_t*)dest)+=6;\
+                       dest+=6;\
                }\
                break;\
        case IMGFMT_BGR24:\
@@ -506,7 +367,7 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
                        ((uint8_t*)dest)[3]= b[Y2];\
                        ((uint8_t*)dest)[4]= g[Y2];\
                        ((uint8_t*)dest)[5]= r[Y2];\
-                       ((uint8_t*)dest)+=6;\
+                       dest+=6;\
                }\
                break;\
        case IMGFMT_RGB16:\
@@ -552,6 +413,17 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
                break;\
        case IMGFMT_RGB4:\
        case IMGFMT_BGR4:\
+               {\
+                       const uint8_t * const d64= dither_8x8_73 [y&7];\
+                       const uint8_t * const d128=dither_8x8_220[y&7];\
+                       func(uint8_t)\
+                               ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
+                                                + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
+                       }\
+               }\
+               break;\
+       case IMGFMT_RG4B:\
+       case IMGFMT_BG4B:\
                {\
                        const uint8_t * const d64= dither_8x8_73 [y&7];\
                        const uint8_t * const d128=dither_8x8_220[y&7];\
@@ -577,7 +449,7 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
                                acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
                                acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
                                ((uint8_t*)dest)[0]= acc;\
-                               ((uint8_t*)dest)++;\
+                               dest++;\
                        }\
 \
 /*\
@@ -626,10 +498,26 @@ static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilt
 */\
                }\
                break;\
+       case IMGFMT_YUY2:\
+               func2\
+                       ((uint8_t*)dest)[2*i2+0]= Y1;\
+                       ((uint8_t*)dest)[2*i2+1]= U;\
+                       ((uint8_t*)dest)[2*i2+2]= Y2;\
+                       ((uint8_t*)dest)[2*i2+3]= V;\
+               }               \
+               break;\
+       case IMGFMT_UYVY:\
+               func2\
+                       ((uint8_t*)dest)[2*i2+0]= U;\
+                       ((uint8_t*)dest)[2*i2+1]= Y1;\
+                       ((uint8_t*)dest)[2*i2+2]= V;\
+                       ((uint8_t*)dest)[2*i2+3]= Y2;\
+               }               \
+               break;\
        }\
 
 
-static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
+static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
                                    int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
                                    uint8_t *dest, int dstW, int y)
 {
@@ -651,7 +539,7 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
                        ((uint8_t*)dest)[3]= r[Y2];
                        ((uint8_t*)dest)[4]= g[Y2];
                        ((uint8_t*)dest)[5]= b[Y2];
-                       ((uint8_t*)dest)+=6;
+                       dest+=6;
                }
                break;
        case IMGFMT_BGR24:
@@ -662,7 +550,7 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
                        ((uint8_t*)dest)[3]= b[Y2];
                        ((uint8_t*)dest)[4]= g[Y2];
                        ((uint8_t*)dest)[5]= r[Y2];
-                       ((uint8_t*)dest)+=6;
+                       dest+=6;
                }
                break;
        case IMGFMT_RGB16:
@@ -708,6 +596,17 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
                break;
        case IMGFMT_RGB4:
        case IMGFMT_BGR4:
+               {
+                       const uint8_t * const d64= dither_8x8_73 [y&7];
+                       const uint8_t * const d128=dither_8x8_220[y&7];
+                       YSCALE_YUV_2_RGBX_C(uint8_t)
+                               ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]
+                                                 +((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);
+                       }
+               }
+               break;
+       case IMGFMT_RG4B:
+       case IMGFMT_BG4B:
                {
                        const uint8_t * const d64= dither_8x8_73 [y&7];
                        const uint8_t * const d128=dither_8x8_220[y&7];
@@ -725,8 +624,8 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
                        int acc=0;
                        for(i=0; i<dstW-1; i+=2){
                                int j;
-                               int Y1=0;
-                               int Y2=0;
+                               int Y1=1<<18;
+                               int Y2=1<<18;
 
                                for(j=0; j<lumFilterSize; j++)
                                {
@@ -746,11 +645,27 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
                                acc+= acc + g[Y2+d128[(i+1)&7]];
                                if((i&7)==6){
                                        ((uint8_t*)dest)[0]= acc;
-                                       ((uint8_t*)dest)++;
+                                       dest++;
                                }
                        }
                }
                break;
+       case IMGFMT_YUY2:
+               YSCALE_YUV_2_PACKEDX_C(void)
+                       ((uint8_t*)dest)[2*i2+0]= Y1;
+                       ((uint8_t*)dest)[2*i2+1]= U;
+                       ((uint8_t*)dest)[2*i2+2]= Y2;
+                       ((uint8_t*)dest)[2*i2+3]= V;
+               }
+                break;
+       case IMGFMT_UYVY:
+               YSCALE_YUV_2_PACKEDX_C(void)
+                       ((uint8_t*)dest)[2*i2+0]= U;
+                       ((uint8_t*)dest)[2*i2+1]= Y1;
+                       ((uint8_t*)dest)[2*i2+2]= V;
+                       ((uint8_t*)dest)[2*i2+3]= Y2;
+               }
+                break;
        }
 }
 
@@ -761,7 +676,13 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
 #define COMPILE_C
 #endif
 
-#ifdef CAN_COMPILE_X86_ASM
+#ifdef ARCH_POWERPC
+#ifdef HAVE_ALTIVEC
+#define COMPILE_ALTIVEC
+#endif //HAVE_ALTIVEC
+#endif //ARCH_POWERPC
+
+#ifdef ARCH_X86
 
 #if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
 #define COMPILE_MMX
@@ -774,7 +695,7 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
 #if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
 #define COMPILE_3DNOW
 #endif
-#endif //CAN_COMPILE_X86_ASM
+#endif //ARCH_X86
 
 #undef HAVE_MMX
 #undef HAVE_MMX2
@@ -784,11 +705,21 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
 #undef HAVE_MMX
 #undef HAVE_MMX2
 #undef HAVE_3DNOW
+#undef HAVE_ALTIVEC
 #define RENAME(a) a ## _C
 #include "swscale_template.c"
 #endif
 
-#ifdef CAN_COMPILE_X86_ASM
+#ifdef ARCH_POWERPC
+#ifdef COMPILE_ALTIVEC
+#undef RENAME
+#define HAVE_ALTIVEC
+#define RENAME(a) a ## _altivec
+#include "swscale_template.c"
+#endif
+#endif //ARCH_POWERPC
+
+#ifdef ARCH_X86
 
 //X86 versions
 /*
@@ -830,137 +761,21 @@ static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumS
 #include "swscale_template.c"
 #endif
 
-#endif //CAN_COMPILE_X86_ASM
-
-// minor note: the HAVE_xyz is messed up after that line so dont use it
-
-
-// old global scaler, dont use for new code
-// will use sws_flags from the command line
-void SwScale_YV12slice(unsigned char* src[], int srcStride[], int srcSliceY ,
-                            int srcSliceH, uint8_t* dst[], int dstStride, int dstbpp,
-                            int srcW, int srcH, int dstW, int dstH){
-
-       static SwsContext *context=NULL;
-       int dstFormat;
-       int dstStride3[3]= {dstStride, dstStride>>1, dstStride>>1};
-
-       switch(dstbpp)
-       {
-               case 8 : dstFormat= IMGFMT_Y8;          break;
-               case 12: dstFormat= IMGFMT_YV12;        break;
-               case 15: dstFormat= IMGFMT_BGR15;       break;
-               case 16: dstFormat= IMGFMT_BGR16;       break;
-               case 24: dstFormat= IMGFMT_BGR24;       break;
-               case 32: dstFormat= IMGFMT_BGR32;       break;
-               default: return;
-       }
-
-       if(!context) context=getSwsContextFromCmdLine(srcW, srcH, IMGFMT_YV12, dstW, dstH, dstFormat);
-
-       context->swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
-}
-
-void swsGetFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, SwsFilter **dstFilterParam)
-{
-       static int firstTime=1;
-       *flags=0;
-
-#ifdef ARCH_X86
-       if(gCpuCaps.hasMMX)
-               asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
-#endif
-       if(firstTime)
-       {
-               firstTime=0;
-               *flags= SWS_PRINT_INFO;
-       }
-       else if(verbose>1) *flags= SWS_PRINT_INFO;
-
-       if(src_filter.lumH) freeVec(src_filter.lumH);
-       if(src_filter.lumV) freeVec(src_filter.lumV);
-       if(src_filter.chrH) freeVec(src_filter.chrH);
-       if(src_filter.chrV) freeVec(src_filter.chrV);
-
-       if(sws_lum_gblur!=0.0){
-               src_filter.lumH= getGaussianVec(sws_lum_gblur, 3.0);
-               src_filter.lumV= getGaussianVec(sws_lum_gblur, 3.0);
-       }else{
-               src_filter.lumH= getIdentityVec();
-               src_filter.lumV= getIdentityVec();
-       }
-
-       if(sws_chr_gblur!=0.0){
-               src_filter.chrH= getGaussianVec(sws_chr_gblur, 3.0);
-               src_filter.chrV= getGaussianVec(sws_chr_gblur, 3.0);
-       }else{
-               src_filter.chrH= getIdentityVec();
-               src_filter.chrV= getIdentityVec();
-       }
-
-       if(sws_chr_sharpen!=0.0){
-               SwsVector *g= getConstVec(-1.0, 3);
-               SwsVector *id= getConstVec(10.0/sws_chr_sharpen, 1);
-               g->coeff[1]=2.0;
-               addVec(id, g);
-               convVec(src_filter.chrH, id);
-               convVec(src_filter.chrV, id);
-               freeVec(g);
-               freeVec(id);
-       }
-
-       if(sws_lum_sharpen!=0.0){
-               SwsVector *g= getConstVec(-1.0, 3);
-               SwsVector *id= getConstVec(10.0/sws_lum_sharpen, 1);
-               g->coeff[1]=2.0;
-               addVec(id, g);
-               convVec(src_filter.lumH, id);
-               convVec(src_filter.lumV, id);
-               freeVec(g);
-               freeVec(id);
-       }
-
-       if(sws_chr_hshift)
-               shiftVec(src_filter.chrH, sws_chr_hshift);
-
-       if(sws_chr_vshift)
-               shiftVec(src_filter.chrV, sws_chr_vshift);
+#endif //ARCH_X86
 
-       normalizeVec(src_filter.chrH, 1.0);
-       normalizeVec(src_filter.chrV, 1.0);
-       normalizeVec(src_filter.lumH, 1.0);
-       normalizeVec(src_filter.lumV, 1.0);
+// minor note: the HAVE_xyz is messed up after that line so don't use it
 
-       if(verbose > 1) printVec(src_filter.chrH);
-       if(verbose > 1) printVec(src_filter.lumH);
-
-       switch(sws_flags)
-       {
-               case 0: *flags|= SWS_FAST_BILINEAR; break;
-               case 1: *flags|= SWS_BILINEAR; break;
-               case 2: *flags|= SWS_BICUBIC; break;
-               case 3: *flags|= SWS_X; break;
-               case 4: *flags|= SWS_POINT; break;
-               case 5: *flags|= SWS_AREA; break;
-               case 6: *flags|= SWS_BICUBLIN; break;
-               default:*flags|= SWS_BILINEAR; break;
-       }
-       
-       *srcFilterParam= &src_filter;
-       *dstFilterParam= NULL;
-}
-
-// will use sws_flags & src_filter (from cmd line)
-SwsContext *getSwsContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat)
+static double getSplineCoeff(double a, double b, double c, double d, double dist)
 {
-       int flags;
-       SwsFilter *dstFilterParam, *srcFilterParam;
-       swsGetFlagsAndFilterFromCmdLine(&flags, &srcFilterParam, &dstFilterParam);
-
-       return getSwsContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, srcFilterParam, dstFilterParam);
+//     printf("%f %f %f %f %f\n", a,b,c,d,dist);
+       if(dist<=1.0)   return ((d*dist + c)*dist + b)*dist +a;
+       else            return getSplineCoeff(  0.0, 
+                                                b+ 2.0*c + 3.0*d,
+                                                       c + 3.0*d,
+                                               -b- 3.0*c - 6.0*d,
+                                               dist-1.0);
 }
 
-
 static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
                              int srcW, int dstW, int filterAlign, int one, int flags,
                              SwsVector *srcFilter, SwsVector *dstFilter)
@@ -972,7 +787,7 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
        double *filter=NULL;
        double *filter2=NULL;
 #ifdef ARCH_X86
-       if(gCpuCaps.hasMMX)
+       if(flags & SWS_CPU_CAPS_MMX)
                asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
 #endif
 
@@ -1010,7 +825,7 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
                        xDstInSrc+= xInc;
                }
        }
-       else if(xInc <= (1<<16) || (flags&SWS_FAST_BILINEAR)) // upscale
+       else if((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) // bilinear upscale
        {
                int i;
                int xDstInSrc;
@@ -1026,32 +841,6 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
                        int j;
 
                        (*filterPos)[i]= xx;
-                       if((flags & SWS_BICUBIC) || (flags & SWS_X))
-                       {
-                               double d= ABS(((xx+1)<<16) - xDstInSrc)/(double)(1<<16);
-                               double y1,y2,y3,y4;
-                               double A= -0.6;
-                               if(flags & SWS_BICUBIC){
-                                               // Equation is from VirtualDub
-                                       y1 = (        +     A*d -       2.0*A*d*d +       A*d*d*d);
-                                       y2 = (+ 1.0             -     (A+3.0)*d*d + (A+2.0)*d*d*d);
-                                       y3 = (        -     A*d + (2.0*A+3.0)*d*d - (A+2.0)*d*d*d);
-                                       y4 = (                  +           A*d*d -       A*d*d*d);
-                               }else{
-                                               // cubic interpolation (derived it myself)
-                                       y1 = (    -2.0*d + 3.0*d*d - 1.0*d*d*d)/6.0;
-                                       y2 = (6.0 -3.0*d - 6.0*d*d + 3.0*d*d*d)/6.0;
-                                       y3 = (    +6.0*d + 3.0*d*d - 3.0*d*d*d)/6.0;
-                                       y4 = (    -1.0*d           + 1.0*d*d*d)/6.0;
-                               }
-
-                               filter[i*filterSize + 0]= y1;
-                               filter[i*filterSize + 1]= y2;
-                               filter[i*filterSize + 2]= y3;
-                               filter[i*filterSize + 3]= y4;
-                       }
-                       else
-                       {
                                //Bilinear upscale / linear interpolate / Area averaging
                                for(j=0; j<filterSize; j++)
                                {
@@ -1061,35 +850,51 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
                                        filter[i*filterSize + j]= coeff;
                                        xx++;
                                }
-                       }
                        xDstInSrc+= xInc;
                }
        }
-       else // downscale
+       else
        {
-               int xDstInSrc;
-               ASSERT(dstW <= srcW)
+               double xDstInSrc;
+               double sizeFactor, filterSizeInSrc;
+               const double xInc1= (double)xInc / (double)(1<<16);
+               int param= (flags&SWS_PARAM_MASK)>>SWS_PARAM_SHIFT;
+
+               if     (flags&SWS_BICUBIC)      sizeFactor= 4.0;
+               else if(flags&SWS_X)            sizeFactor= 8.0;
+               else if(flags&SWS_AREA)         sizeFactor= 1.0; //downscale only, for upscale it is bilinear
+               else if(flags&SWS_GAUSS)        sizeFactor= 8.0;   // infinite ;)
+               else if(flags&SWS_LANCZOS)      sizeFactor= param ? 2.0*param : 6.0;
+               else if(flags&SWS_SINC)         sizeFactor= 20.0; // infinite ;)
+               else if(flags&SWS_SPLINE)       sizeFactor= 20.0;  // infinite ;)
+               else if(flags&SWS_BILINEAR)     sizeFactor= 2.0;
+               else {
+                       sizeFactor= 0.0; //GCC warning killer
+                       ASSERT(0)
+               }
+               
+               if(xInc1 <= 1.0)        filterSizeInSrc= sizeFactor; // upscale
+               else                    filterSizeInSrc= sizeFactor*srcW / (double)dstW;
 
-               if(flags&SWS_BICUBIC)   filterSize= (int)ceil(1 + 4.0*srcW / (double)dstW);
-               else if(flags&SWS_X)    filterSize= (int)ceil(1 + 4.0*srcW / (double)dstW);
-               else if(flags&SWS_AREA) filterSize= (int)ceil(1 + 1.0*srcW / (double)dstW);
-               else /* BILINEAR */     filterSize= (int)ceil(1 + 2.0*srcW / (double)dstW);
-               filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
+               filterSize= (int)ceil(1 + filterSizeInSrc); // will be reduced later if possible
+               if(filterSize > srcW-2) filterSize=srcW-2;
 
-               xDstInSrc= xInc/2 - 0x8000;
+               filter= (double*)memalign(16, dstW*sizeof(double)*filterSize);
+
+               xDstInSrc= xInc1 / 2.0 - 0.5;
                for(i=0; i<dstW; i++)
                {
-                       int xx= (int)((double)xDstInSrc/(double)(1<<16) - (filterSize-1)*0.5 + 0.5);
+                       int xx= (int)(xDstInSrc - (filterSize-1)*0.5 + 0.5);
                        int j;
                        (*filterPos)[i]= xx;
                        for(j=0; j<filterSize; j++)
                        {
-                               double d= ABS((xx<<16) - xDstInSrc)/(double)xInc;
+                               double d= ABS(xx - xDstInSrc)/filterSizeInSrc*sizeFactor;
                                double coeff;
-                               if((flags & SWS_BICUBIC) || (flags & SWS_X))
+                               if(flags & SWS_BICUBIC)
                                {
-                                       double A= -0.75;
-//                                     d*=2;
+                                       double A= param ? -param*0.01 : -0.60;
+                                       
                                        // Equation is from VirtualDub
                                        if(d<1.0)
                                                coeff = (1.0 - (A+3.0)*d*d + (A+2.0)*d*d*d);
@@ -1098,22 +903,65 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
                                        else
                                                coeff=0.0;
                                }
+/*                             else if(flags & SWS_X)
+                               {
+                                       double p= param ? param*0.01 : 0.3;
+                                       coeff = d ? sin(d*PI)/(d*PI) : 1.0;
+                                       coeff*= pow(2.0, - p*d*d);
+                               }*/
+                               else if(flags & SWS_X)
+                               {
+                                       double A= param ? param*0.1 : 1.0;
+                                       
+                                       if(d<1.0)
+                                               coeff = cos(d*PI);
+                                       else
+                                               coeff=-1.0;
+                                       if(coeff<0.0)   coeff= -pow(-coeff, A);
+                                       else            coeff=  pow( coeff, A);
+                                       coeff= coeff*0.5 + 0.5;
+                               }
                                else if(flags & SWS_AREA)
                                {
-                                       double srcPixelSize= (1<<16)/(double)xInc;
+                                       double srcPixelSize= 1.0/xInc1;
                                        if(d + srcPixelSize/2 < 0.5) coeff= 1.0;
                                        else if(d - srcPixelSize/2 < 0.5) coeff= (0.5-d)/srcPixelSize + 0.5;
                                        else coeff=0.0;
                                }
-                               else
+                               else if(flags & SWS_GAUSS)
+                               {
+                                       double p= param ? param*0.1 : 3.0;
+                                       coeff = pow(2.0, - p*d*d);
+                               }
+                               else if(flags & SWS_SINC)
+                               {
+                                       coeff = d ? sin(d*PI)/(d*PI) : 1.0;
+                               }
+                               else if(flags & SWS_LANCZOS)
+                               {
+                                       double p= param ? param : 3.0; 
+                                       coeff = d ? sin(d*PI)*sin(d*PI/p)/(d*d*PI*PI/p) : 1.0;
+                                       if(d>p) coeff=0;
+                               }
+                               else if(flags & SWS_BILINEAR)
                                {
                                        coeff= 1.0 - d;
                                        if(coeff<0) coeff=0;
                                }
+                               else if(flags & SWS_SPLINE)
+                               {
+                                       double p=-2.196152422706632;
+                                       coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, d);
+                               }
+                               else {
+                                       coeff= 0.0; //GCC warning killer
+                                       ASSERT(0)
+                               }
+
                                filter[i*filterSize + j]= coeff;
                                xx++;
                        }
-                       xDstInSrc+= xInc;
+                       xDstInSrc+= xInc1;
                }
        }
 
@@ -1136,7 +984,7 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
                scaleFilter.coeff= filter + i*filterSize;
                scaleFilter.length= filterSize;
 
-               if(srcFilter) outVec= getConvVec(srcFilter, &scaleFilter);
+               if(srcFilter) outVec= sws_getConvVec(srcFilter, &scaleFilter);
                else          outVec= &scaleFilter;
 
                ASSERT(outVec->length == filter2Size)
@@ -1149,7 +997,7 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
 
                (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
 
-               if(outVec != &scaleFilter) freeVec(outVec);
+               if(outVec != &scaleFilter) sws_freeVec(outVec);
        }
        free(filter); filter=NULL;
 
@@ -1170,7 +1018,7 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
 
                        if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
 
-                       /* preserve Monotonicity because the core cant handle the filter otherwise */
+                       /* preserve Monotonicity because the core can't handle the filter otherwise */
                        if(i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
 
                        // Move filter coeffs left
@@ -1193,6 +1041,21 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
                if(min>minFilterSize) minFilterSize= min;
        }
 
+        if (flags & SWS_CPU_CAPS_ALTIVEC) {
+          // we can handle the special case 4,
+          // so we don't want to go to the full 8
+          if (minFilterSize < 5)
+            filterAlign = 4;
+
+          // we really don't want to waste our time
+          // doing useless computation, so fall-back on
+          // the scalar C code for very small filter.
+          // vectorizing is worth it only if you have
+          // decent-sized vector.
+          if (minFilterSize < 3)
+            filterAlign = 1;
+        }
+
        ASSERT(minFilterSize > 0)
        filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
        ASSERT(filterSize > 0)
@@ -1255,16 +1118,21 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
        for(i=0; i<dstW; i++)
        {
                int j;
+               double error=0;
                double sum=0;
                double scale= one;
+
                for(j=0; j<filterSize; j++)
                {
                        sum+= filter[i*filterSize + j];
                }
                scale/= sum;
-               for(j=0; j<filterSize; j++)
+               for(j=0; j<*outFilterSize; j++)
                {
-                       (*outFilter)[i*(*outFilterSize) + j]= (int)(filter[i*filterSize + j]*scale);
+                       double v= filter[i*filterSize + j]*scale + error;
+                       int intV= floor(v + 0.5);
+                       (*outFilter)[i*(*outFilterSize) + j]= intV;
+                       error = v - intV;
                }
        }
        
@@ -1451,10 +1319,6 @@ static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *fil
 }
 #endif // ARCH_X86
 
-//FIXME remove
-void SwScale_Init(){
-}
-
 static void globalInit(){
     // generating tables:
     int i;
@@ -1462,43 +1326,47 @@ static void globalInit(){
        int c= MIN(MAX(i-256, 0), 255);
        clip_table[i]=c;
     }
+}
 
-cpuCaps= gCpuCaps;
-
+static SwsFunc getSwsFunc(int flags){
+    
 #ifdef RUNTIME_CPUDETECT
-#ifdef CAN_COMPILE_X86_ASM
+#ifdef ARCH_X86
        // ordered per speed fasterst first
-       if(gCpuCaps.hasMMX2)
-               swScale= swScale_MMX2;
-       else if(gCpuCaps.has3DNow)
-               swScale= swScale_3DNow;
-       else if(gCpuCaps.hasMMX)
-               swScale= swScale_MMX;
+       if(flags & SWS_CPU_CAPS_MMX2)
+               return swScale_MMX2;
+       else if(flags & SWS_CPU_CAPS_3DNOW)
+               return swScale_3DNow;
+       else if(flags & SWS_CPU_CAPS_MMX)
+               return swScale_MMX;
        else
-               swScale= swScale_C;
+               return swScale_C;
 
 #else
-       swScale= swScale_C;
-       cpuCaps.hasMMX2 = cpuCaps.hasMMX = cpuCaps.has3DNow = 0;
+#ifdef ARCH_POWERPC
+       if(flags & SWS_CPU_CAPS_ALTIVEC)
+         return swScale_altivec;
+       else
+         return swScale_C;
+#endif
+       return swScale_C;
 #endif
 #else //RUNTIME_CPUDETECT
 #ifdef HAVE_MMX2
-       swScale= swScale_MMX2;
-       cpuCaps.has3DNow = 0;
+       return swScale_MMX2;
 #elif defined (HAVE_3DNOW)
-       swScale= swScale_3DNow;
-       cpuCaps.hasMMX2 = 0;
+       return swScale_3DNow;
 #elif defined (HAVE_MMX)
-       swScale= swScale_MMX;
-       cpuCaps.hasMMX2 = cpuCaps.has3DNow = 0;
+       return swScale_MMX;
+#elif defined (HAVE_ALTIVEC)
+       return swScale_altivec;
 #else
-       swScale= swScale_C;
-       cpuCaps.hasMMX2 = cpuCaps.hasMMX = cpuCaps.has3DNow = 0;
+       return swScale_C;
 #endif
 #endif //!RUNTIME_CPUDETECT
 }
 
-static void PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dstParam[], int dstStride[]){
        uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
        /* Copy Y plane */
@@ -1517,59 +1385,88 @@ static void PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[],
                }
        }
        dst = dstParam[1] + dstStride[1]*srcSliceY;
-       if(c->srcFormat==IMGFMT_YV12)
-               interleaveBytes( src[1],src[2],dst,c->srcW,srcSliceH,srcStride[1],srcStride[2],dstStride[0] );
-       else /* I420 & IYUV */
-               interleaveBytes( src[2],src[1],dst,c->srcW,srcSliceH,srcStride[2],srcStride[1],dstStride[0] );
-}
+       interleaveBytes( src[1],src[2],dst,c->srcW,srcSliceH,srcStride[1],srcStride[2],dstStride[0] );
 
+       return srcSliceH;
+}
 
-/* Warper functions for yuv2bgr */
-static void planarYuvToBgr(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dstParam[], int dstStride[]){
        uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
 
-       if(c->srcFormat==IMGFMT_YV12)
-               yuv2rgb( dst,src[0],src[1],src[2],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
-       else /* I420 & IYUV */
-               yuv2rgb( dst,src[0],src[2],src[1],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
+       yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
+
+       return srcSliceH;
 }
 
-static void PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dstParam[], int dstStride[]){
        uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
 
-       if(c->srcFormat==IMGFMT_YV12)
-               yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
-       else /* I420 & IYUV */
-               yv12toyuy2( src[0],src[2],src[1],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
-}
+       yv12touyvy( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
 
-static void bgr24to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*3==srcStride[0]*4)
-               rgb24to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+       return srcSliceH;
+}
 
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb24to32(srcPtr, dstPtr, c->srcW*3);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
+/* {RGB,BGR}{15,16,24,32} -> {RGB,BGR}{15,16,24,32} */
+static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                          int srcSliceH, uint8_t* dst[], int dstStride[]){
+       const int srcFormat= c->srcFormat;
+       const int dstFormat= c->dstFormat;
+       const int srcBpp= ((srcFormat&0xFF) + 7)>>3;
+       const int dstBpp= ((dstFormat&0xFF) + 7)>>3;
+       const int srcId= (srcFormat&0xFF)>>2; // 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 
+       const int dstId= (dstFormat&0xFF)>>2;
+       void (*conv)(const uint8_t *src, uint8_t *dst, unsigned src_size)=NULL;
+
+       /* BGR -> BGR */
+       if(   (isBGR(srcFormat) && isBGR(dstFormat))
+          || (isRGB(srcFormat) && isRGB(dstFormat))){
+               switch(srcId | (dstId<<4)){
+               case 0x34: conv= rgb16to15; break;
+               case 0x36: conv= rgb24to15; break;
+               case 0x38: conv= rgb32to15; break;
+               case 0x43: conv= rgb15to16; break;
+               case 0x46: conv= rgb24to16; break;
+               case 0x48: conv= rgb32to16; break;
+               case 0x63: conv= rgb15to24; break;
+               case 0x64: conv= rgb16to24; break;
+               case 0x68: conv= rgb32to24; break;
+               case 0x83: conv= rgb15to32; break;
+               case 0x84: conv= rgb16to32; break;
+               case 0x86: conv= rgb24to32; break;
+               default: MSG_ERR("swScaler: internal error %s -> %s converter\n", 
+                                vo_format_name(srcFormat), vo_format_name(dstFormat)); break;
+               }
+       }else if(   (isBGR(srcFormat) && isRGB(dstFormat))
+                || (isRGB(srcFormat) && isBGR(dstFormat))){
+               switch(srcId | (dstId<<4)){
+               case 0x33: conv= rgb15tobgr15; break;
+               case 0x34: conv= rgb16tobgr15; break;
+               case 0x36: conv= rgb24tobgr15; break;
+               case 0x38: conv= rgb32tobgr15; break;
+               case 0x43: conv= rgb15tobgr16; break;
+               case 0x44: conv= rgb16tobgr16; break;
+               case 0x46: conv= rgb24tobgr16; break;
+               case 0x48: conv= rgb32tobgr16; break;
+               case 0x63: conv= rgb15tobgr24; break;
+               case 0x64: conv= rgb16tobgr24; break;
+               case 0x66: conv= rgb24tobgr24; break;
+               case 0x68: conv= rgb32tobgr24; break;
+               case 0x83: conv= rgb15tobgr32; break;
+               case 0x84: conv= rgb16tobgr32; break;
+               case 0x86: conv= rgb24tobgr32; break;
+               case 0x88: conv= rgb32tobgr32; break;
+               default: MSG_ERR("swScaler: internal error %s -> %s converter\n", 
+                                vo_format_name(srcFormat), vo_format_name(dstFormat)); break;
                }
-       }     
-}
+       }else{
+               MSG_ERR("swScaler: internal error %s -> %s converter\n", 
+                        vo_format_name(srcFormat), vo_format_name(dstFormat));
+       }
 
-static void bgr24to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*3==srcStride[0]*2)
-               rgb24to16(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
+       if(dstStride[0]*srcBpp == srcStride[0]*dstBpp)
+               conv(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
        else
        {
                int i;
@@ -1578,248 +1475,94 @@ static void bgr24to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int
 
                for(i=0; i<srcSliceH; i++)
                {
-                       rgb24to16(srcPtr, dstPtr, c->srcW*3);
+                       conv(srcPtr, dstPtr, c->srcW*srcBpp);
                        srcPtr+= srcStride[0];
                        dstPtr+= dstStride[0];
                }
        }     
+       return srcSliceH;
 }
 
-static void bgr24to15Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*3==srcStride[0]*2)
-               rgb24to15(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
 
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb24to15(srcPtr, dstPtr, c->srcW*3);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
+       rgb24toyv12(
+               src[0], 
+               dst[0]+ srcSliceY    *dstStride[0], 
+               dst[1]+(srcSliceY>>1)*dstStride[1], 
+               dst[2]+(srcSliceY>>1)*dstStride[2],
+               c->srcW, srcSliceH, 
+               dstStride[0], dstStride[1], srcStride[0]);
+       return srcSliceH;
 }
 
-static void bgr32to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*4==srcStride[0]*3)
-               rgb32to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
+       int i;
+
+       /* copy Y */
+       if(srcStride[0]==dstStride[0]) 
+               memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
+       else{
                uint8_t *srcPtr= src[0];
                uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
 
                for(i=0; i<srcSliceH; i++)
                {
-                       rgb32to24(srcPtr, dstPtr, c->srcW<<2);
+                       memcpy(dstPtr, srcPtr, c->srcW);
                        srcPtr+= srcStride[0];
                        dstPtr+= dstStride[0];
                }
-       }     
+       }
+
+       if(c->dstFormat==IMGFMT_YV12){
+               planar2x(src[1], dst[1], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[1]);
+               planar2x(src[2], dst[2], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[2]);
+       }else{
+               planar2x(src[1], dst[2], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[2]);
+               planar2x(src[2], dst[1], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[1]);
+       }
+       return srcSliceH;
 }
 
-static void bgr32to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*4==srcStride[0]*2)
-               rgb32to16(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
+/**
+ * bring pointers in YUV order instead of YVU
+ */
+static inline void sws_orderYUV(int format, uint8_t * sortedP[], int sortedStride[], uint8_t * p[], int stride[]){
+       if(format == IMGFMT_YV12 || format == IMGFMT_YVU9
+           || format == IMGFMT_444P || format == IMGFMT_422P || format == IMGFMT_411P){
+               sortedP[0]= p[0];
+               sortedP[1]= p[2];
+               sortedP[2]= p[1];
+               sortedStride[0]= stride[0];
+               sortedStride[1]= stride[2];
+               sortedStride[2]= stride[1];
+       }
+       else if(isPacked(format) || isGray(format) || format == IMGFMT_Y8)
        {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb32to16(srcPtr, dstPtr, c->srcW<<2);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
+               sortedP[0]= p[0];
+               sortedP[1]= 
+               sortedP[2]= NULL;
+               sortedStride[0]= stride[0];
+               sortedStride[1]= 
+               sortedStride[2]= 0;
+       }
+       else if(format == IMGFMT_I420 || format == IMGFMT_IYUV)
+       {
+               sortedP[0]= p[0];
+               sortedP[1]= p[1];
+               sortedP[2]= p[2];
+               sortedStride[0]= stride[0];
+               sortedStride[1]= stride[1];
+               sortedStride[2]= stride[2];
+       }else{
+               MSG_ERR("internal error in orderYUV\n");
+       }
 }
 
-static void bgr32to15Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+/* unscaled copy like stuff (assumes nearly identical formats) */
+static int simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
              int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*4==srcStride[0]*2)
-               rgb32to15(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb32to15(srcPtr, dstPtr, c->srcW<<2);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
-}
-
-static void bgr15to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]==srcStride[0])
-               rgb15to16(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb15to16(srcPtr, dstPtr, c->srcW<<1);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
-}
-
-static void bgr15to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*2==srcStride[0]*3)
-               rgb15to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb15to24(srcPtr, dstPtr, c->srcW<<1);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
-}
-
-static void bgr15to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*2==srcStride[0]*4)
-               rgb15to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb15to32(srcPtr, dstPtr, c->srcW<<1);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
-}
-
-static void bgr16to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*2==srcStride[0]*3)
-               rgb16to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb16to24(srcPtr, dstPtr, c->srcW<<1);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
-}
-
-static void bgr16to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       
-       if(dstStride[0]*2==srcStride[0]*4)
-               rgb16to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       rgb16to32(srcPtr, dstPtr, c->srcW<<1);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }     
-}
-
-static void bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-
-       rgb24toyv12(
-               src[0], 
-               dst[0]+ srcSliceY    *dstStride[0], 
-               dst[1]+(srcSliceY>>1)*dstStride[1], 
-               dst[2]+(srcSliceY>>1)*dstStride[2],
-               c->srcW, srcSliceH, 
-               dstStride[0], dstStride[1], srcStride[0]);
-}
-
-/**
- * bring pointers in YUV order instead of YVU
- */
-static inline void orderYUV(int format, uint8_t * sortedP[], int sortedStride[], uint8_t * p[], int stride[]){
-       if(format == IMGFMT_YV12 || format == IMGFMT_YVU9){
-               sortedP[0]= p[0];
-               sortedP[1]= p[1];
-               sortedP[2]= p[2];
-               sortedStride[0]= stride[0];
-               sortedStride[1]= stride[1];
-               sortedStride[2]= stride[2];
-       }
-       else if(isPacked(format) || isGray(format))
-       {
-               sortedP[0]= p[0];
-               sortedP[1]= 
-               sortedP[2]= NULL;
-               sortedStride[0]= stride[0];
-               sortedStride[1]= 
-               sortedStride[2]= 0;
-       }
-       else /* I420 */
-       {
-               sortedP[0]= p[0];
-               sortedP[1]= p[2];
-               sortedP[2]= p[1];
-               sortedStride[0]= stride[0];
-               sortedStride[1]= stride[2];
-               sortedStride[2]= stride[1];
-       }
-}
-
-/* unscaled copy like stuff (assumes nearly identical formats) */
-static void simpleCopy(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
-             int srcSliceH, uint8_t* dstParam[], int dstStrideParam[]){
-
-       int srcStride[3];
-       int dstStride[3];
-       uint8_t *src[3];
-       uint8_t *dst[3];
-
-       orderYUV(c->srcFormat, src, srcStride, srcParam, srcStrideParam);
-       orderYUV(c->dstFormat, dst, dstStride, dstParam, dstStrideParam);
 
        if(isPacked(c->srcFormat))
        {
@@ -1878,13 +1621,15 @@ static void simpleCopy(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[],
                        }
                }
        }
+       return srcSliceH;
 }
 
 static int remove_dup_fourcc(int fourcc)
 {
        switch(fourcc)
        {
-           case IMGFMT_IYUV: return IMGFMT_I420;
+           case IMGFMT_I420:
+           case IMGFMT_IYUV: return IMGFMT_YV12;
            case IMGFMT_Y8  : return IMGFMT_Y800;
            case IMGFMT_IF09: return IMGFMT_YVU9;
            default: return fourcc;
@@ -1893,12 +1638,12 @@ static int remove_dup_fourcc(int fourcc)
 
 static void getSubSampleFactors(int *h, int *v, int format){
        switch(format){
+       case IMGFMT_UYVY:
        case IMGFMT_YUY2:
                *h=1;
                *v=0;
                break;
        case IMGFMT_YV12:
-       case IMGFMT_I420:
        case IMGFMT_Y800: //FIXME remove after different subsamplings are fully implemented
                *h=1;
                *v=1;
@@ -1907,6 +1652,18 @@ static void getSubSampleFactors(int *h, int *v, int format){
                *h=2;
                *v=2;
                break;
+       case IMGFMT_444P:
+               *h=0;
+               *v=0;
+               break;
+       case IMGFMT_422P:
+               *h=1;
+               *v=0;
+               break;
+       case IMGFMT_411P:
+               *h=2;
+               *v=0;
+               break;
        default:
                *h=0;
                *v=0;
@@ -1914,26 +1671,122 @@ static void getSubSampleFactors(int *h, int *v, int format){
        }
 }
 
-SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
+static uint16_t roundToInt16(int64_t f){
+       int r= (f + (1<<15))>>16;
+            if(r<-0x7FFF) return 0x8000;
+       else if(r> 0x7FFF) return 0x7FFF;
+       else               return r;
+}
+
+/**
+ * @param inv_table the yuv2rgb coeffs, normally Inverse_Table_6_9[x]
+ * @param fullRange if 1 then the luma range is 0..255 if 0 its 16..235
+ * @return -1 if not supported
+ */
+int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation){
+       int64_t crv =  inv_table[0];
+       int64_t cbu =  inv_table[1];
+       int64_t cgu = -inv_table[2];
+       int64_t cgv = -inv_table[3];
+       int64_t cy  = 1<<16;
+       int64_t oy  = 0;
+
+       if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
+       memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
+       memcpy(c->dstColorspaceTable,     table, sizeof(int)*4);
+
+       c->brightness= brightness;
+       c->contrast  = contrast;
+       c->saturation= saturation;
+       c->srcRange  = srcRange;
+       c->dstRange  = dstRange;
+
+       c->uOffset=   0x0400040004000400LL;
+       c->vOffset=   0x0400040004000400LL;
+
+       if(!srcRange){
+               cy= (cy*255) / 219;
+               oy= 16<<16;
+       }
+
+       cy = (cy *contrast             )>>16;
+       crv= (crv*contrast * saturation)>>32;
+       cbu= (cbu*contrast * saturation)>>32;
+       cgu= (cgu*contrast * saturation)>>32;
+       cgv= (cgv*contrast * saturation)>>32;
+
+       oy -= 256*brightness;
+
+       c->yCoeff=    roundToInt16(cy *8192) * 0x0001000100010001ULL;
+       c->vrCoeff=   roundToInt16(crv*8192) * 0x0001000100010001ULL;
+       c->ubCoeff=   roundToInt16(cbu*8192) * 0x0001000100010001ULL;
+       c->vgCoeff=   roundToInt16(cgv*8192) * 0x0001000100010001ULL;
+       c->ugCoeff=   roundToInt16(cgu*8192) * 0x0001000100010001ULL;
+       c->yOffset=   roundToInt16(oy *   8) * 0x0001000100010001ULL;
+
+       yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
+       //FIXME factorize
+
+#ifdef HAVE_ALTIVEC
+       yuv2rgb_altivec_init_tables (c, inv_table);
+#endif 
+       return 0;
+}
+
+/**
+ * @return -1 if not supported
+ */
+int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation){
+       if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
+
+       *inv_table = c->srcColorspaceTable;
+       *table     = c->dstColorspaceTable;
+       *srcRange  = c->srcRange;
+       *dstRange  = c->dstRange;
+       *brightness= c->brightness;
+       *contrast  = c->contrast;
+       *saturation= c->saturation;
+       
+       return 0;       
+}
+
+SwsContext *sws_getContext(int srcW, int srcH, int origSrcFormat, int dstW, int dstH, int origDstFormat, int flags,
                          SwsFilter *srcFilter, SwsFilter *dstFilter){
 
        SwsContext *c;
        int i;
-       int usesFilter;
-       int unscaled;
+       int usesVFilter, usesHFilter;
+       int unscaled, needsDither;
+       int srcFormat, dstFormat;
        SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
 #ifdef ARCH_X86
-       if(gCpuCaps.hasMMX)
+       if(flags & SWS_CPU_CAPS_MMX)
                asm volatile("emms\n\t"::: "memory");
 #endif
-       if(swScale==NULL) globalInit();
-//srcFormat= IMGFMT_Y800;
-//srcFormat= IMGFMT_YVU9;
-       /* avoid dupplicate Formats, so we dont need to check to much */
-       srcFormat = remove_dup_fourcc(srcFormat);
-       dstFormat = remove_dup_fourcc(dstFormat);
+
+#ifndef RUNTIME_CPUDETECT //ensure that the flags match the compiled variant if cpudetect is off
+       flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC);
+#ifdef HAVE_MMX2
+       flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
+#elif defined (HAVE_3DNOW)
+       flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
+#elif defined (HAVE_MMX)
+       flags |= SWS_CPU_CAPS_MMX;
+#elif defined (HAVE_ALTIVEC)
+       flags |= SWS_CPU_CAPS_ALTIVEC;
+#endif
+#endif
+       if(clip_table[512] != 255) globalInit();
+       if(rgb15to16 == NULL) sws_rgb2rgb_init(flags);
+
+       /* avoid duplicate Formats, so we don't need to check to much */
+       srcFormat = remove_dup_fourcc(origSrcFormat);
+       dstFormat = remove_dup_fourcc(origDstFormat);
 
        unscaled = (srcW == dstW && srcH == dstH);
+       needsDither= (isBGR(dstFormat) || isRGB(dstFormat)) 
+                    && (dstFormat&0xFF)<24
+                    && ((dstFormat&0xFF)<(srcFormat&0xFF) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
 
        if(!isSupportedIn(srcFormat)) 
        {
@@ -1969,16 +1822,19 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
        c->flags= flags;
        c->dstFormat= dstFormat;
        c->srcFormat= srcFormat;
-
-       usesFilter=0;
-       if(dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesFilter=1;
-       if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesFilter=1;
-       if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesFilter=1;
-       if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesFilter=1;
-       if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesFilter=1;
-       if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesFilter=1;
-       if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesFilter=1;
-       if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesFilter=1;
+       c->origDstFormat= origDstFormat;
+       c->origSrcFormat= origSrcFormat;
+        c->vRounder= 4* 0x0001000100010001ULL;
+
+       usesHFilter= usesVFilter= 0;
+       if(dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesVFilter=1;
+       if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesHFilter=1;
+       if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesVFilter=1;
+       if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesHFilter=1;
+       if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesVFilter=1;
+       if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesHFilter=1;
+       if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesVFilter=1;
+       if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesHFilter=1;
 
        getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
        getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
@@ -1996,216 +1852,85 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
 
        c->chrIntHSubSample= c->chrDstHSubSample;
        c->chrIntVSubSample= c->chrSrcVSubSample;
-       
+
        // note the -((-x)>>y) is so that we allways round toward +inf
        c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
        c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
        c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
        c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
-       
-       if(isBGR(dstFormat))
-               c->yuvTable= yuv2rgb_c_init(dstFormat & 0xFF, MODE_RGB, c->table_rV, c->table_gU, c->table_gV, c->table_bU);
-       if(isRGB(dstFormat))
-               c->yuvTable= yuv2rgb_c_init(dstFormat & 0xFF, MODE_BGR, c->table_rV, c->table_gU, c->table_gV, c->table_bU);
+
+       sws_setColorspaceDetails(c, Inverse_Table_6_9[SWS_CS_DEFAULT], 0, Inverse_Table_6_9[SWS_CS_DEFAULT] /* FIXME*/, 0, 0, 1<<16, 1<<16); 
 
        /* unscaled special Cases */
-       if(unscaled && !usesFilter)
+       if(unscaled && !usesHFilter && !usesVFilter)
        {
                /* yv12_to_nv12 */
-               if((srcFormat == IMGFMT_YV12||srcFormat==IMGFMT_I420)&&dstFormat == IMGFMT_NV12)
+               if(srcFormat == IMGFMT_YV12 && dstFormat == IMGFMT_NV12)
                {
                        c->swScale= PlanarToNV12Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-               /* yv12_to_yuy2 */
-               if((srcFormat == IMGFMT_YV12||srcFormat==IMGFMT_I420)&&dstFormat == IMGFMT_YUY2)
-               {
-                       c->swScale= PlanarToYuy2Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
                }
                /* yuv2bgr */
-               if((srcFormat==IMGFMT_YV12 || srcFormat==IMGFMT_I420) && isBGR(dstFormat))
+               if((srcFormat==IMGFMT_YV12 || srcFormat==IMGFMT_422P) && (isBGR(dstFormat) || isRGB(dstFormat)))
                {
-                       // FIXME multiple yuv2rgb converters wont work that way cuz that thing is full of globals&statics
-                       //FIXME rgb vs. bgr ? 
-#ifdef WORDS_BIGENDIAN
-                       if(dstFormat==IMGFMT_BGR32)
-                               yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_BGR);
-                       else
-                               yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_RGB);
-#else
-                       yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_RGB);
-#endif
-                       c->swScale= planarYuvToBgr;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
+                       c->swScale= yuv2rgb_get_func_ptr(c);
                }
-#if 1
-               /* simple copy */
-               if(   srcFormat == dstFormat
-                  || (srcFormat==IMGFMT_YV12 && dstFormat==IMGFMT_I420)
-                  || (srcFormat==IMGFMT_I420 && dstFormat==IMGFMT_YV12)
-                  || (isPlanarYUV(srcFormat) && isGray(dstFormat))
-                  || (isPlanarYUV(dstFormat) && isGray(srcFormat))
-                 )
-               {
-                       c->swScale= simpleCopy;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-#endif
-               /* bgr32to24 & rgb32to24*/
-               if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR24)
-                ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB24))
-               {
-                       c->swScale= bgr32to24Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-
-               /* bgr32to16 & rgb32to16*/
-               if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR16)
-                ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB16))
-               {
-                       c->swScale= bgr32to16Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-
-               /* bgr32to15 & rgb32to15*/
-               if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR15)
-                ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB15))
-               {
-                       c->swScale= bgr32to15Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-
-               /* bgr24to32 & rgb24to32*/
-               if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR32)
-                ||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB32))
-               {
-                       c->swScale= bgr24to32Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-
-               /* bgr24to16 & rgb24to16*/
-               if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR16)
-                ||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB16))
-               {
-                       c->swScale= bgr24to16Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-
-               /* bgr24to15 & rgb24to15*/
-               if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR15)
-                ||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB15))
-               {
-                       c->swScale= bgr24to15Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
-
-               /* bgr15to16 */
-               if(srcFormat==IMGFMT_BGR15 && dstFormat==IMGFMT_BGR16)
+               
+               if( srcFormat==IMGFMT_YVU9 && dstFormat==IMGFMT_YV12 )
                {
-                       c->swScale= bgr15to16Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
+                       c->swScale= yvu9toyv12Wrapper;
                }
 
-               /* bgr15to24 */
-               if((srcFormat==IMGFMT_BGR15 && dstFormat==IMGFMT_BGR24)
-                ||(srcFormat==IMGFMT_RGB15 && dstFormat==IMGFMT_RGB24))
-               {
-                       c->swScale= bgr15to24Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
+               /* bgr24toYV12 */
+               if(srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_YV12)
+                       c->swScale= bgr24toyv12Wrapper;
+               
+               /* rgb/bgr -> rgb/bgr (no dither needed forms) */
+               if(   (isBGR(srcFormat) || isRGB(srcFormat))
+                  && (isBGR(dstFormat) || isRGB(dstFormat)) 
+                  && !needsDither)
+                       c->swScale= rgb2rgbWrapper;
+
+               /* LQ converters if -sws 0 or -sws 4*/
+               if(c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
+                       /* rgb/bgr -> rgb/bgr (dither needed forms) */
+                       if(  (isBGR(srcFormat) || isRGB(srcFormat))
+                         && (isBGR(dstFormat) || isRGB(dstFormat)) 
+                         && needsDither)
+                               c->swScale= rgb2rgbWrapper;
+
+                       /* yv12_to_yuy2 */
+                       if(srcFormat == IMGFMT_YV12 && 
+                           (dstFormat == IMGFMT_YUY2 || dstFormat == IMGFMT_UYVY))
+                       {
+                               if (dstFormat == IMGFMT_YUY2)
+                                   c->swScale= PlanarToYuy2Wrapper;
+                               else
+                                   c->swScale= PlanarToUyvyWrapper;
+                       }
                }
 
-#if 0 //segfaults
-               /* bgr15to32 */
-               if((srcFormat==IMGFMT_BGR15 && dstFormat==IMGFMT_BGR32)
-                ||(srcFormat==IMGFMT_RGB15 && dstFormat==IMGFMT_RGB32))
-               {
-                       c->swScale= bgr15to32Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
+#ifdef HAVE_ALTIVEC
+               if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
+                   ((srcFormat == IMGFMT_YV12 && 
+                     (dstFormat == IMGFMT_YUY2 || dstFormat == IMGFMT_UYVY)))) {
+                 // unscaled YV12 -> packed YUV, we want speed
+                 if (dstFormat == IMGFMT_YUY2)
+                   c->swScale= yv12toyuy2_unscaled_altivec;
+                 else
+                   c->swScale= yv12touyvy_unscaled_altivec;
                }
 #endif
-               /* bgr16to24 */
-               if((srcFormat==IMGFMT_BGR16 && dstFormat==IMGFMT_BGR24)
-                ||(srcFormat==IMGFMT_RGB16 && dstFormat==IMGFMT_RGB24))
-               {
-                       c->swScale= bgr16to24Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
-               }
 
-#if 0 //segfaults
-               /* bgr16to32 */
-               if((srcFormat==IMGFMT_BGR16 && dstFormat==IMGFMT_BGR32)
-                ||(srcFormat==IMGFMT_RGB16 && dstFormat==IMGFMT_RGB32))
+               /* simple copy */
+               if(   srcFormat == dstFormat
+                  || (isPlanarYUV(srcFormat) && isGray(dstFormat))
+                  || (isPlanarYUV(dstFormat) && isGray(srcFormat))
+                 )
                {
-                       c->swScale= bgr16to32Wrapper;
-
-                       if(flags&SWS_PRINT_INFO)
-                               MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
-                                       vo_format_name(srcFormat), vo_format_name(dstFormat));
-                       return c;
+                       c->swScale= simpleCopy;
                }
-#endif
-               /* bgr24toYV12 */
-               if(srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_YV12)
-               {
-                       c->swScale= bgr24toyv12Wrapper;
 
+               if(c->swScale){
                        if(flags&SWS_PRINT_INFO)
                                MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n", 
                                        vo_format_name(srcFormat), vo_format_name(dstFormat));
@@ -2213,7 +1938,7 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                }
        }
 
-       if(cpuCaps.hasMMX2)
+       if(flags & SWS_CPU_CAPS_MMX2)
        {
                c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
                if(!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
@@ -2221,6 +1946,7 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                        if(flags&SWS_PRINT_INFO)
                                MSG_INFO("SwScaler: output Width is not a multiple of 32 -> no MMX2 scaler\n");
                }
+               if(usesHFilter) c->canMMX2BeUsed=0;
        }
        else
                c->canMMX2BeUsed=0;
@@ -2241,8 +1967,8 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                        c->lumXInc+= 20;
                        c->chrXInc+= 20;
                }
-               //we dont use the x86asm scaler if mmx is available
-               else if(cpuCaps.hasMMX)
+               //we don't use the x86asm scaler if mmx is available
+               else if(flags & SWS_CPU_CAPS_MMX)
                {
                        c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
                        c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
@@ -2251,7 +1977,10 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
 
        /* precalculate horizontal scaler filter coefficients */
        {
-               const int filterAlign= cpuCaps.hasMMX ? 4 : 1;
+               const int filterAlign=
+                 (flags & SWS_CPU_CAPS_MMX) ? 4 :
+                 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
+                 1;
 
                initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
                                 srcW      ,       dstW, filterAlign, 1<<14,
@@ -2263,7 +1992,7 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                                 srcFilter->chrH, dstFilter->chrH);
 
 #ifdef ARCH_X86
-// cant downscale !!!
+// can't downscale !!!
                if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
                {
                        c->lumMmx2Filter   = (int16_t*)memalign(8, (dstW        /8+8)*sizeof(int16_t));
@@ -2280,16 +2009,22 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
 
 
        /* precalculate vertical scaler filter coefficients */
-       initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
-                       srcH      ,        dstH, 1, (1<<12)-4,
-                       (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC)  : flags,
-                       srcFilter->lumV, dstFilter->lumV);
-       initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
-                       c->chrSrcH, c->chrDstH, 1, (1<<12)-4,
-                       (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
-                       srcFilter->chrV, dstFilter->chrV);
-
-       // Calculate Buffer Sizes so that they wont run out while handling these damn slices
+       {
+               const int filterAlign=
+                 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
+                 1;
+
+               initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
+                               srcH      ,        dstH, filterAlign, (1<<12)-4,
+                               (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC)  : flags,
+                               srcFilter->lumV, dstFilter->lumV);
+               initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
+                               c->chrSrcH, c->chrDstH, filterAlign, (1<<12)-4,
+                               (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
+                               srcFilter->chrV, dstFilter->chrV);
+       }
+
+       // Calculate Buffer Sizes so that they won't run out while handling these damn slices
        c->vLumBufSize= c->vLumFilterSize;
        c->vChrBufSize= c->vChrFilterSize;
        for(i=0; i<dstH; i++)
@@ -2297,7 +2032,9 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                int chrI= i*c->chrDstH / dstH;
                int nextSlice= MAX(c->vLumFilterPos[i   ] + c->vLumFilterSize - 1,
                                 ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
-               nextSlice&= ~3; // Slices start at boundaries which are divisable through 4
+
+               nextSlice>>= c->chrSrcVSubSample;
+               nextSlice<<= c->chrSrcVSubSample;
                if(c->vLumFilterPos[i   ] + c->vLumBufSize < nextSlice)
                        c->vLumBufSize= nextSlice - c->vLumFilterPos[i   ];
                if(c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
@@ -2319,19 +2056,6 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
 
        ASSERT(c->chrDstH <= dstH)
 
-       // pack filter data for mmx code
-       if(cpuCaps.hasMMX)
-       {
-               c->lumMmxFilter= (int16_t*)memalign(8, c->vLumFilterSize*      dstH*4*sizeof(int16_t));
-               c->chrMmxFilter= (int16_t*)memalign(8, c->vChrFilterSize*c->chrDstH*4*sizeof(int16_t));
-               for(i=0; i<c->vLumFilterSize*dstH; i++)
-                       c->lumMmxFilter[4*i]=c->lumMmxFilter[4*i+1]=c->lumMmxFilter[4*i+2]=c->lumMmxFilter[4*i+3]=
-                               c->vLumFilter[i];
-               for(i=0; i<c->vChrFilterSize*c->chrDstH; i++)
-                       c->chrMmxFilter[4*i]=c->chrMmxFilter[4*i+1]=c->chrMmxFilter[4*i+2]=c->chrMmxFilter[4*i+3]=
-                               c->vChrFilter[i];
-       }
-
        if(flags&SWS_PRINT_INFO)
        {
 #ifdef DITHER1XBPP
@@ -2352,7 +2076,15 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                else if(flags&SWS_AREA)
                        MSG_INFO("\nSwScaler: Area Averageing scaler, ");
                else if(flags&SWS_BICUBLIN)
-                       MSG_INFO("\nSwScaler: luma BICUBIC / chroma BILINEAR, ");
+                       MSG_INFO("\nSwScaler: luma BICUBIC / chroma BILINEAR scaler, ");
+               else if(flags&SWS_GAUSS)
+                       MSG_INFO("\nSwScaler: Gaussian scaler, ");
+               else if(flags&SWS_SINC)
+                       MSG_INFO("\nSwScaler: Sinc scaler, ");
+               else if(flags&SWS_LANCZOS)
+                       MSG_INFO("\nSwScaler: Lanczos scaler, ");
+               else if(flags&SWS_SPLINE)
+                       MSG_INFO("\nSwScaler: Bicubic spline scaler, ");
                else
                        MSG_INFO("\nSwScaler: ehh flags invalid?! ");
 
@@ -2363,19 +2095,21 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                        MSG_INFO("from %s to %s ", 
                                vo_format_name(srcFormat), vo_format_name(dstFormat));
 
-               if(cpuCaps.hasMMX2)
+               if(flags & SWS_CPU_CAPS_MMX2)
                        MSG_INFO("using MMX2\n");
-               else if(cpuCaps.has3DNow)
+               else if(flags & SWS_CPU_CAPS_3DNOW)
                        MSG_INFO("using 3DNOW\n");
-               else if(cpuCaps.hasMMX)
+               else if(flags & SWS_CPU_CAPS_MMX)
                        MSG_INFO("using MMX\n");
-               else
+               else if(flags & SWS_CPU_CAPS_ALTIVEC)
+                       MSG_INFO("using AltiVec\n");
+               else 
                        MSG_INFO("using C\n");
        }
 
-       if((flags & SWS_PRINT_INFO) && verbose)
+       if(flags & SWS_PRINT_INFO)
        {
-               if(cpuCaps.hasMMX)
+               if(flags & SWS_CPU_CAPS_MMX)
                {
                        if(c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
                                MSG_V("SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
@@ -2410,34 +2144,34 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                if(isPlanarYUV(dstFormat))
                {
                        if(c->vLumFilterSize==1)
-                               MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
+                               MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                        else
-                               MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
+                               MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                }
                else
                {
                        if(c->vLumFilterSize==1 && c->vChrFilterSize==2)
                                MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
-                                      "SwScaler:       2-tap scaler for vertical chrominance scaling (BGR)\n",cpuCaps.hasMMX ? "MMX" : "C");
+                                      "SwScaler:       2-tap scaler for vertical chrominance scaling (BGR)\n",(flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                        else if(c->vLumFilterSize==2 && c->vChrFilterSize==2)
-                               MSG_V("SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", cpuCaps.hasMMX ? "MMX" : "C");
+                               MSG_V("SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                        else
-                               MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", cpuCaps.hasMMX ? "MMX" : "C");
+                               MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                }
 
                if(dstFormat==IMGFMT_BGR24)
                        MSG_V("SwScaler: using %s YV12->BGR24 Converter\n",
-                               cpuCaps.hasMMX2 ? "MMX2" : (cpuCaps.hasMMX ? "MMX" : "C"));
+                               (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
                else if(dstFormat==IMGFMT_BGR32)
-                       MSG_V("SwScaler: using %s YV12->BGR32 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
+                       MSG_V("SwScaler: using %s YV12->BGR32 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                else if(dstFormat==IMGFMT_BGR16)
-                       MSG_V("SwScaler: using %s YV12->BGR16 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
+                       MSG_V("SwScaler: using %s YV12->BGR16 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
                else if(dstFormat==IMGFMT_BGR15)
-                       MSG_V("SwScaler: using %s YV12->BGR15 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
+                       MSG_V("SwScaler: using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
 
                MSG_V("SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
        }
-       if((flags & SWS_PRINT_INFO) && verbose>1)
+       if(flags & SWS_PRINT_INFO)
        {
                MSG_DBG2("SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
                        c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
@@ -2445,16 +2179,105 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
                        c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
        }
 
-       c->swScale= swScale;
+       c->swScale= getSwsFunc(flags);
        return c;
 }
 
+/**
+ * swscale warper, so we don't need to export the SwsContext.
+ * assumes planar YUV to be in YUV order instead of YVU
+ */
+int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                           int srcSliceH, uint8_t* dst[], int dstStride[]){
+       //copy strides, so they can safely be modified
+       int srcStride2[3]= {srcStride[0], srcStride[1], srcStride[2]};
+       int dstStride2[3]= {dstStride[0], dstStride[1], dstStride[2]};
+       return c->swScale(c, src, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
+}
+
+/**
+ * swscale warper, so we don't need to export the SwsContext
+ */
+int sws_scale(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
+                           int srcSliceH, uint8_t* dstParam[], int dstStrideParam[]){
+       int srcStride[3];
+       int dstStride[3];
+       uint8_t *src[3];
+       uint8_t *dst[3];
+       sws_orderYUV(c->origSrcFormat, src, srcStride, srcParam, srcStrideParam);
+       sws_orderYUV(c->origDstFormat, dst, dstStride, dstParam, dstStrideParam);
+//printf("sws: slice %d %d\n", srcSliceY, srcSliceH);
+
+       return c->swScale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
+}
+
+SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, 
+                               float lumaSharpen, float chromaSharpen,
+                               float chromaHShift, float chromaVShift,
+                               int verbose)
+{
+       SwsFilter *filter= malloc(sizeof(SwsFilter));
+
+       if(lumaGBlur!=0.0){
+               filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
+               filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
+       }else{
+               filter->lumH= sws_getIdentityVec();
+               filter->lumV= sws_getIdentityVec();
+       }
+
+       if(chromaGBlur!=0.0){
+               filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
+               filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
+       }else{
+               filter->chrH= sws_getIdentityVec();
+               filter->chrV= sws_getIdentityVec();
+       }
+
+       if(chromaSharpen!=0.0){
+               SwsVector *g= sws_getConstVec(-1.0, 3);
+               SwsVector *id= sws_getConstVec(10.0/chromaSharpen, 1);
+               g->coeff[1]=2.0;
+               sws_addVec(id, g);
+               sws_convVec(filter->chrH, id);
+               sws_convVec(filter->chrV, id);
+               sws_freeVec(g);
+               sws_freeVec(id);
+       }
+
+       if(lumaSharpen!=0.0){
+               SwsVector *g= sws_getConstVec(-1.0, 3);
+               SwsVector *id= sws_getConstVec(10.0/lumaSharpen, 1);
+               g->coeff[1]=2.0;
+               sws_addVec(id, g);
+               sws_convVec(filter->lumH, id);
+               sws_convVec(filter->lumV, id);
+               sws_freeVec(g);
+               sws_freeVec(id);
+       }
+
+       if(chromaHShift != 0.0)
+               sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
+
+       if(chromaVShift != 0.0)
+               sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
+
+       sws_normalizeVec(filter->chrH, 1.0);
+       sws_normalizeVec(filter->chrV, 1.0);
+       sws_normalizeVec(filter->lumH, 1.0);
+       sws_normalizeVec(filter->lumV, 1.0);
+
+       if(verbose) sws_printVec(filter->chrH);
+       if(verbose) sws_printVec(filter->lumH);
+
+        return filter;
+}
+
 /**
  * returns a normalized gaussian curve used to filter stuff
  * quality=3 is high quality, lowwer is lowwer quality
  */
-
-SwsVector *getGaussianVec(double variance, double quality){
+SwsVector *sws_getGaussianVec(double variance, double quality){
        const int length= (int)(variance*quality + 0.5) | 1;
        int i;
        double *coeff= memalign(sizeof(double), length*sizeof(double));
@@ -2470,12 +2293,12 @@ SwsVector *getGaussianVec(double variance, double quality){
                coeff[i]= exp( -dist*dist/(2*variance*variance) ) / sqrt(2*variance*PI);
        }
 
-       normalizeVec(vec, 1.0);
+       sws_normalizeVec(vec, 1.0);
 
        return vec;
 }
 
-SwsVector *getConstVec(double c, int length){
+SwsVector *sws_getConstVec(double c, int length){
        int i;
        double *coeff= memalign(sizeof(double), length*sizeof(double));
        SwsVector *vec= malloc(sizeof(SwsVector));
@@ -2490,7 +2313,7 @@ SwsVector *getConstVec(double c, int length){
 }
 
 
-SwsVector *getIdentityVec(void){
+SwsVector *sws_getIdentityVec(void){
        double *coeff= memalign(sizeof(double), sizeof(double));
        SwsVector *vec= malloc(sizeof(SwsVector));
        coeff[0]= 1.0;
@@ -2501,7 +2324,7 @@ SwsVector *getIdentityVec(void){
        return vec;
 }
 
-void normalizeVec(SwsVector *a, double height){
+void sws_normalizeVec(SwsVector *a, double height){
        int i;
        double sum=0;
        double inv;
@@ -2512,17 +2335,17 @@ void normalizeVec(SwsVector *a, double height){
        inv= height/sum;
 
        for(i=0; i<a->length; i++)
-               a->coeff[i]*= height;
+               a->coeff[i]*= inv;
 }
 
-void scaleVec(SwsVector *a, double scalar){
+void sws_scaleVec(SwsVector *a, double scalar){
        int i;
 
        for(i=0; i<a->length; i++)
                a->coeff[i]*= scalar;
 }
 
-static SwsVector *getConvVec(SwsVector *a, SwsVector *b){
+static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b){
        int length= a->length + b->length - 1;
        double *coeff= memalign(sizeof(double), length*sizeof(double));
        int i, j;
@@ -2544,7 +2367,7 @@ static SwsVector *getConvVec(SwsVector *a, SwsVector *b){
        return vec;
 }
 
-static SwsVector *sumVec(SwsVector *a, SwsVector *b){
+static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b){
        int length= MAX(a->length, b->length);
        double *coeff= memalign(sizeof(double), length*sizeof(double));
        int i;
@@ -2561,7 +2384,7 @@ static SwsVector *sumVec(SwsVector *a, SwsVector *b){
        return vec;
 }
 
-static SwsVector *diffVec(SwsVector *a, SwsVector *b){
+static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b){
        int length= MAX(a->length, b->length);
        double *coeff= memalign(sizeof(double), length*sizeof(double));
        int i;
@@ -2579,7 +2402,7 @@ static SwsVector *diffVec(SwsVector *a, SwsVector *b){
 }
 
 /* shift left / or right if "shift" is negative */
-static SwsVector *getShiftedVec(SwsVector *a, int shift){
+static SwsVector *sws_getShiftedVec(SwsVector *a, int shift){
        int length= a->length + ABS(shift)*2;
        double *coeff= memalign(sizeof(double), length*sizeof(double));
        int i;
@@ -2598,39 +2421,39 @@ static SwsVector *getShiftedVec(SwsVector *a, int shift){
        return vec;
 }
 
-void shiftVec(SwsVector *a, int shift){
-       SwsVector *shifted= getShiftedVec(a, shift);
+void sws_shiftVec(SwsVector *a, int shift){
+       SwsVector *shifted= sws_getShiftedVec(a, shift);
        free(a->coeff);
        a->coeff= shifted->coeff;
        a->length= shifted->length;
        free(shifted);
 }
 
-void addVec(SwsVector *a, SwsVector *b){
-       SwsVector *sum= sumVec(a, b);
+void sws_addVec(SwsVector *a, SwsVector *b){
+       SwsVector *sum= sws_sumVec(a, b);
        free(a->coeff);
        a->coeff= sum->coeff;
        a->length= sum->length;
        free(sum);
 }
 
-void subVec(SwsVector *a, SwsVector *b){
-       SwsVector *diff= diffVec(a, b);
+void sws_subVec(SwsVector *a, SwsVector *b){
+       SwsVector *diff= sws_diffVec(a, b);
        free(a->coeff);
        a->coeff= diff->coeff;
        a->length= diff->length;
        free(diff);
 }
 
-void convVec(SwsVector *a, SwsVector *b){
-       SwsVector *conv= getConvVec(a, b);
-       free(a->coeff);
+void sws_convVec(SwsVector *a, SwsVector *b){
+       SwsVector *conv= sws_getConvVec(a, b);
+       free(a->coeff);  
        a->coeff= conv->coeff;
        a->length= conv->length;
        free(conv);
 }
 
-SwsVector *cloneVec(SwsVector *a){
+SwsVector *sws_cloneVec(SwsVector *a){
        double *coeff= memalign(sizeof(double), a->length*sizeof(double));
        int i;
        SwsVector *vec= malloc(sizeof(SwsVector));
@@ -2643,7 +2466,7 @@ SwsVector *cloneVec(SwsVector *a){
        return vec;
 }
 
-void printVec(SwsVector *a){
+void sws_printVec(SwsVector *a){
        int i;
        double max=0;
        double min=0;
@@ -2666,7 +2489,7 @@ void printVec(SwsVector *a){
        }
 }
 
-void freeVec(SwsVector *a){
+void sws_freeVec(SwsVector *a){
        if(!a) return;
        if(a->coeff) free(a->coeff);
        a->coeff=NULL;
@@ -2674,7 +2497,18 @@ void freeVec(SwsVector *a){
        free(a);
 }
 
-void freeSwsContext(SwsContext *c){
+void sws_freeFilter(SwsFilter *filter){
+       if(!filter) return;
+
+       if(filter->lumH) sws_freeVec(filter->lumH);
+       if(filter->lumV) sws_freeVec(filter->lumV);
+       if(filter->chrH) sws_freeVec(filter->chrH);
+       if(filter->chrV) sws_freeVec(filter->chrV);
+       free(filter);
+}
+
+
+void sws_freeContext(SwsContext *c){
        int i;
        if(!c) return;
 
@@ -2718,11 +2552,6 @@ void freeSwsContext(SwsContext *c){
        if(c->hChrFilterPos) free(c->hChrFilterPos);
        c->hChrFilterPos = NULL;
 
-       if(c->lumMmxFilter) free(c->lumMmxFilter);
-       c->lumMmxFilter = NULL;
-       if(c->chrMmxFilter) free(c->chrMmxFilter);
-       c->chrMmxFilter = NULL;
-
        if(c->lumMmx2Filter) free(c->lumMmx2Filter);
        c->lumMmx2Filter=NULL;
        if(c->chrMmx2Filter) free(c->chrMmx2Filter);
@@ -2737,4 +2566,3 @@ void freeSwsContext(SwsContext *c){
        free(c);
 }
 
-