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Code Issues Releases Activity

Remove snow/dwt test program

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This test program so full of programming errors it is impossible
to make sense of it.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-07-17 20:43:15 +01:00
parent 1b4a17094e
commit 89cc8a316d
2 changed files with 1 additions and 122 deletions
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2
libavcodec/Makefile
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@ -667,7 +667,7 @@ SKIPHEADERS-$(CONFIG_XVMC) += xvmc.h
EXAMPLES = api
TESTPROGS = cabac dct fft fft-fixed h264 iirfilter rangecoder snow
TESTPROGS = cabac dct fft fft-fixed h264 iirfilter rangecoder
TESTPROGS-$(HAVE_MMX) += motion
TESTOBJS = dctref.o

121
libavcodec/snow.c
View File

@ -3689,124 +3689,3 @@ AVCodec ff_snow_encoder = {
.long_name = NULL_IF_CONFIG_SMALL("Snow"),
};
#endif
#ifdef TEST
#undef malloc
#undef free
#undef printf
#include "libavutil/lfg.h"
#include "libavutil/mathematics.h"
int main(void){
int width=256;
int height=256;
int buffer[2][width*height];
SnowContext s;
int i;
AVLFG prng;
s.spatial_decomposition_count=6;
s.spatial_decomposition_type=1;
av_lfg_init(&prng, 1);
printf("testing 5/3 DWT\n");
for(i=0; i<width*height; i++)
buffer[0][i] = buffer[1][i] = av_lfg_get(&prng) % 54321 - 12345;
ff_spatial_dwt(buffer[0], width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
ff_spatial_idwt(buffer[0], width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
for(i=0; i<width*height; i++)
if(buffer[0][i]!= buffer[1][i]) printf("fsck: %6d %12d %7d\n",i, buffer[0][i], buffer[1][i]);
printf("testing 9/7 DWT\n");
s.spatial_decomposition_type=0;
for(i=0; i<width*height; i++)
buffer[0][i] = buffer[1][i] = av_lfg_get(&prng) % 54321 - 12345;
ff_spatial_dwt(buffer[0], width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
ff_spatial_idwt(buffer[0], width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
for(i=0; i<width*height; i++)
if(FFABS(buffer[0][i] - buffer[1][i])>20) printf("fsck: %6d %12d %7d\n",i, buffer[0][i], buffer[1][i]);
{
int level, orientation, x, y;
int64_t errors[8][4];
int64_t g=0;
memset(errors, 0, sizeof(errors));
s.spatial_decomposition_count=3;
s.spatial_decomposition_type=0;
for(level=0; level<s.spatial_decomposition_count; level++){
for(orientation=level ? 1 : 0; orientation<4; orientation++){
int w= width >> (s.spatial_decomposition_count-level);
int h= height >> (s.spatial_decomposition_count-level);
int stride= width << (s.spatial_decomposition_count-level);
DWTELEM *buf= buffer[0];
int64_t error=0;
if(orientation&1) buf+=w;
if(orientation>1) buf+=stride>>1;
memset(buffer[0], 0, sizeof(int)*width*height);
buf[w/2 + h/2*stride]= 256*256;
ff_spatial_idwt(buffer[0], width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
for(y=0; y<height; y++){
for(x=0; x<width; x++){
int64_t d= buffer[0][x + y*width];
error += d*d;
if(FFABS(width/2-x)<9 && FFABS(height/2-y)<9 && level==2) printf("%8"PRId64" ", d);
}
if(FFABS(height/2-y)<9 && level==2) printf("\n");
}
error= (int)(sqrt(error)+0.5);
errors[level][orientation]= error;
if(g) g=av_gcd(g, error);
else g= error;
}
}
printf("static int const visual_weight[][4]={\n");
for(level=0; level<s.spatial_decomposition_count; level++){
printf(" {");
for(orientation=0; orientation<4; orientation++){
printf("%8"PRId64",", errors[level][orientation]/g);
}
printf("},\n");
}
printf("};\n");
{
int level=2;
int w= width >> (s.spatial_decomposition_count-level);
//int h= height >> (s.spatial_decomposition_count-level);
int stride= width << (s.spatial_decomposition_count-level);
DWTELEM *buf= buffer[0];
int64_t error=0;
buf+=w;
buf+=stride>>1;
memset(buffer[0], 0, sizeof(int)*width*height);
for(y=0; y<height; y++){
for(x=0; x<width; x++){
int tab[4]={0,2,3,1};
buffer[0][x+width*y]= 256*256*tab[(x&1) + 2*(y&1)];
}
}
ff_spatial_dwt(buffer[0], width, height, width, s.spatial_decomposition_type, s.spatial_decomposition_count);
for(y=0; y<height; y++){
for(x=0; x<width; x++){
int64_t d= buffer[0][x + y*width];
error += d*d;
if(FFABS(width/2-x)<9 && FFABS(height/2-y)<9) printf("%8"PRId64" ", d);
}
if(FFABS(height/2-y)<9) printf("\n");
}
}
}
return 0;
}
#endif /* TEST */