Move postproc ---> libswscale

Originally committed as revision 18866 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

1 files changed, 216 insertions, 0 deletions

diff --git a/libswscale/swscale-example.c b/libswscale/swscale-example.c
new file mode 100644
index 0000000000..f8e0ef4e8e
--- /dev/null
+++ b/libswscale/swscale-example.c
@@ -0,0 +1,216 @@
+/*
+    Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <stdarg.h>
+
+#include "config.h"
+
+#include "swscale.h"
+#include "libvo/img_format.h"
+
+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;
+
+//printf("%d %d\n", w, h);
+        
+	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;
+//printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 );
+		}
+//printf("\n");
+	}
+	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;
+	struct SwsContext *srcContext, *dstContext, *outContext;
+	
+	for(i=0; i<3; i++){
+		// avoid stride % bpp != 0
+		if(srcFormat==IMGFMT_RGB24 || srcFormat==IMGFMT_BGR24)
+			srcStride[i]= srcW*3;
+		else
+			srcStride[i]= srcW*4;
+		
+		if(dstFormat==IMGFMT_RGB24 || dstFormat==IMGFMT_BGR24)
+			dstStride[i]= dstW*3;
+		else
+			dstStride[i]= dstW*4;
+	
+		src[i]= (uint8_t*) malloc(srcStride[i]*srcH);
+		dst[i]= (uint8_t*) malloc(dstStride[i]*dstH);
+		out[i]= (uint8_t*) malloc(refStride[i]*h);
+	}
+
+	srcContext= sws_getContext(w, h, IMGFMT_YV12, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
+	dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
+	outContext= sws_getContext(dstW, dstH, dstFormat, w, h, IMGFMT_YV12, flags, NULL, 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]);
+
+	sws_scale(srcContext, ref, refStride, 0, h   , src, srcStride);
+	sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
+	sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
+
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+	asm volatile ("emms\n\t");
+#endif
+	     
+	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(srcFormat == IMGFMT_Y800 || dstFormat==IMGFMT_Y800) 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>100 || ssdV>100){
+		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:
+	
+	sws_freeContext(srcContext);
+	sws_freeContext(dstContext);
+	sws_freeContext(outContext);
+
+	for(i=0; i<3; i++){
+		free(src[i]);
+		free(dst[i]);
+		free(out[i]);
+	}
+}
+
+void mp_msg( int x, int y, const char *format, ... ){
+    va_list va;
+    va_start(va, format);
+    vfprintf(stderr, format, va);
+    va_end(va);
+}
+
+void fast_memcpy(void *a, void *b, int s){ //FIXME
+    memcpy(a, b, s);
+}
+
+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;
+printf("%s -> %s\n", 
+	vo_format_name(srcFormat),
+	vo_format_name(dstFormat));
+ 
+			srcW= w;
+			srcH= h;
+			for(dstW=w - w/3; dstW<= 4*w/3; dstW+= w/3){
+				for(dstH=h - h/3; dstH<= 4*h/3; dstH+= h/3){
+					for(flags=1; flags<33; flags*=2)
+						doTest(src, stride, w, h, srcFormat, dstFormat,
+							srcW, srcH, dstW, dstH, flags);
+				}
+			}
+		}
+	}
+}
+
+#define W 96
+#define H 96
+
+int main(int argc, char **argv){
+	uint8_t rgb_data[W*H*4];
+	uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
+	int rgb_stride[3]={4*W, 0, 0};
+	uint8_t data[3][W*H];
+	uint8_t *src[3]= {data[0], data[1], data[2]};
+	int stride[3]={W, W, W};
+	int x, y;
+	struct SwsContext *sws;
+
+	sws= sws_getContext(W/12, H/12, IMGFMT_BGR32, W, H, IMGFMT_YV12, 2, NULL, NULL, NULL);
+        
+	for(y=0; y<H; y++){
+		for(x=0; x<W*4; x++){
+			rgb_data[ x + y*4*W]= random();
+		}
+	}
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+	sws_rgb2rgb_init(SWS_CPU_CAPS_MMX*0);
+#else
+	sws_rgb2rgb_init(0);
+#endif
+	sws_scale(sws, rgb_src, rgb_stride, 0, H   , src, stride);
+
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+	asm volatile ("emms\n\t");
+#endif
+
+	selfTest(src,  stride, W, H);
+
+        return 123;
+}