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Create an Hyperion image 

Former-commit-id: ea4c1a605f618b8581456c4db1ab015bcb46508b
This commit is contained in:
johan 2014-01-12 20:04:22 +01:00
parent c65cf872d1
commit f90f076ca4
2 changed files with 10 additions and 7 deletions
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13
test/v4l2_to_png/V4L2Grabber.cpp
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@ -593,8 +593,7 @@ void V4L2Grabber::process_image(const uint8_t * data)
int width = (_width + _pixelDecimation/2) / _pixelDecimation;
int height = (_height + _pixelDecimation/2) / _pixelDecimation;
QImage image(width, height, QImage::Format_RGB888);
Image<ColorRgb> image(width, height);
for (int ySource = _pixelDecimation/2, yDest = 0; ySource < _height; ySource += _pixelDecimation, ++yDest)
{
@ -605,14 +604,14 @@ void V4L2Grabber::process_image(const uint8_t * data)
uint8_t u = (xSource%2 == 0) ? data[index] : data[index-2];
uint8_t v = (xSource%2 == 0) ? data[index+2] : data[index];
uint8_t r, g, b;
yuv2rgb(y, u, v, r, g, b);
image.setPixel(xDest, yDest, qRgb(r, g, b));
ColorRgb & rgb = image(xDest, yDest);
yuv2rgb(y, u, v, rgb.red, rgb.green, rgb.blue);
}
}
image.save("screenshot.png");
// store as PNG
QImage pngImage((const uint8_t *) image.memptr(), width, height, 3*width, QImage::Format_RGB888);
pngImage.save("screenshot.png");
}
int V4L2Grabber::xioctl(int request, void *arg)

4
test/v4l2_to_png/V4L2Grabber.h
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@ -4,6 +4,10 @@
#include <string>
#include <vector>
// util includes
#include <utils/Image.h>
#include <utils/ColorRgb.h>
/// Capture class for V4L2 devices
///
/// @see http://linuxtv.org/downloads/v4l-dvb-apis/capture-example.html