/**
\fn processYuv
*/
uint8_t flyContrast::processYuv(ADMImage* in, ADMImage *out)
{
buildContrastTable (param.coef, param.offset, tableluma, tablechroma);
out->copyInfo(in);
if(param.doLuma)
doContrast(in,out,tableluma,PLANAR_Y);
else
out->copyPlane(in,out,PLANAR_Y);
if(param.doChromaU)
doContrast(in,out,tablechroma,PLANAR_U);
else
out->copyPlane(in,out,PLANAR_U);
if(param.doChromaV)
doContrast(in,out,tablechroma,PLANAR_V);
else
out->copyPlane(in,out,PLANAR_V);
return 1;
}
/**
\fn getNextFrame
*/
bool ADMVideoContrast::getNextFrame(uint32_t *fn,ADMImage *image)
{
if(!previousFilter->getNextFrame(fn,image)) return false;
if(_param.doLuma)
doContrast(image,image,_tableFlat,PLANAR_Y);
if(_param.doChromaU)
doContrast(image,image,_tableNZ,PLANAR_U);
if(_param.doChromaV)
doContrast(image,image,_tableNZ,PLANAR_V);
return 1;
}
/**
\fn processYuv
*/
uint8_t flyContrast::processYuv(ADMImage* in, ADMImage *out)
{
buildContrastTable (param.coef, param.offset, tableluma, tablechroma);
out->copyInfo(in);
if(!previewActivated)
{
out->copyPlane(in,out,PLANAR_Y);
out->copyPlane(in,out,PLANAR_U);
out->copyPlane(in,out,PLANAR_V);
}
else
{
if(param.doLuma)
doContrast(in,out,tableluma,PLANAR_Y);
else
out->copyPlane(in,out,PLANAR_Y);
if(param.doChromaU)
doContrast(in,out,tablechroma,PLANAR_U);
else
out->copyPlane(in,out,PLANAR_U);
if(param.doChromaV)
doContrast(in,out,tablechroma,PLANAR_V);
else
out->copyPlane(in,out,PLANAR_V);
}
if(!scene) return true;
// Draw luma histogram
uint8_t *luma=out->GetReadPtr(PLANAR_Y);
int stride=out->GetPitch(PLANAR_Y);
int decimate=4;
double sumsum[256];
for(int i=0;i<256;i++) sumsum[i]=0;
double totalSum=(double)(out->_width*out->_height)/decimate; // # of sampling points
for(int y=0;y<in->_height;y+=decimate)
{
uint8_t *p=luma;
for(int x=0;x<in->_width;x++)
{
sumsum[*p]++;
p++;
}
luma+=stride*decimate;
}
// normalize
for(int i=0;i<256;i++)
{
// zoom factor =10
sumsum[i]=(10*sumsum[i]*(127))/totalSum;
if(sumsum[i]>127) sumsum[i]=127;
}
int toggle=0;
scene->clear();
for(int i=0;i<256;i++)
{
QLineF qline(i,127,i,127-sumsum[i]);
scene->addLine(qline);
}
// Draw 16 and 235 line
QLineF qline(16,100,16,126);
scene->addLine(qline);
QLineF qline2(235,100,235,126);
scene->addLine(qline2);
return 1;
}
