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rounding bugfix

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dering filter test patterns


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6414 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael 2002-06-13 13:18:50 +00:00
parent d704ca0b5c
commit 6ecb5a6b00
1 changed files with 51 additions and 3 deletions
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54
libmpcodecs/vf_test.c
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@ -42,6 +42,10 @@
#define WIDTH 512
#define HEIGHT 512
struct vf_priv_s {
int frame_num;
};
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
@ -103,7 +107,7 @@ static void idct(uint8_t *dst, int dstStride, int src[64])
for(k=0; k<8; k++)
sum+= c[k*8+i]*tmp[8*k+j];
v= (int)(sum+0.5);
v= (int)floor(sum+0.5);
if(v<0) v=0;
else if(v>255) v=255;
@ -170,7 +174,7 @@ static void freq1Test(uint8_t *dst, int stride, int off)
int x;
for(x=0; x<8*16; x+=16)
{
drawBasis(dst + x + y*stride, stride, 4*(128+off), freq, 128*8);
drawBasis(dst + x + y*stride, stride, 4*(96+off), freq, 128*8);
freq++;
}
}
@ -225,9 +229,48 @@ static void mv1Test(uint8_t *dst, int stride, int off)
}
}
static void ring1Test(uint8_t *dst, int stride, int off)
{
int y;
int color=0;
for(y=off; y<16*16; y+=16)
{
int x;
for(x=off; x<16*16; x+=16)
{
drawDc(dst + x + y*stride, stride, ((x+y)&16) ? color : -color, 16, 16);
// dst[x + y*stride]= 255 + (off&1);
color++;
}
}
}
static void ring2Test(uint8_t *dst, int stride, int off)
{
int y;
for(y=0; y<16*16; y++)
{
int x;
for(x=0; x<16*16; x++)
{
double d= sqrt((x-8*16)*(x-8*16) + (y-8*16)*(y-8*16));
double r= d/20 - (int)(d/20);
if(r<off/30.0)
{
dst[x + y*stride]= 255;
dst[x + y*stride+256]= 0;
}
else{
dst[x + y*stride]= x;
dst[x + y*stride+256]= x;
}
}
}
}
static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
mp_image_t *dmpi;
static int frame=0;
int frame= vf->priv->frame_num;
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,IMGFMT_YV12,
@ -251,11 +294,14 @@ static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
case 5: amp1Test(dmpi->planes[1], dmpi->stride[1], frame%30); break;
case 6: cbp1Test(dmpi->planes , dmpi->stride , frame%30); break;
case 7: mv1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
case 8: ring1Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
case 9: ring2Test(dmpi->planes[0], dmpi->stride[0], frame%30); break;
}
}
vf_next_put_image(vf,dmpi);
frame++;
vf->priv->frame_num= frame;
}
//===========================================================================//
@ -268,6 +314,8 @@ static int open(vf_instance_t *vf, char* args){
vf->config=config;
vf->put_image=put_image;
vf->query_format=query_format;
vf->priv=malloc(sizeof(struct vf_priv_s));
vf->priv->frame_num= args ? atoi(args) : 0;
initIdct();
return 1;
}