#include <>
// Assume that there is aconstructorto represent the video frame
typedef struct {
unsigned char* data; // Pixel data of the frame
int width; // width of the frame
int height; // height of the frame
} Frame;
// Loop filteringfunction (math.)
void loopFilter(Frame* frame) {
int width = frame->width;
int height = frame->height;
unsigned char* data = frame->data;
// Traverse the boundaries of each block
for (int y = 0; y < height; y += 16) { // filter in 16x16 blocks
for (int x = 0; x < width; x += 16) {
// Apply deblocking filtering
deblockFilter(x, y, data, width);
}
}
// Apply sample adaptive offset filtering
sampleAdaptiveOffsetFilter(frame);
}
// De-blocking filter function
void deblockFilter(int x, int y, unsigned char* data, int width) {
// Here the logic for de-blocking filtering is implemented.
// Typically includes edge detection and boundary strength calculation
// Pixels near block edges are then smoothed based on the boundary intensity
// The exact realization depends onencodersConfiguration and video content of the
}
// Sample adaptive offset filter function
void sampleAdaptiveOffsetFilter(Frame* frame) {
// The logic for implementing sample adaptive offset filtering is implemented here
// This filter is used to improve the quality of the edges and details of the image.
// It adjusts the pixel values according to the local image content
// The exact implementation depends on the encoder configuration and the video content
}
int main() {
// Assuming there is a video frame that has been encoded and quantized
Frame frame;
// Initialize frame data and parameters
// ...
// Apply loop filtering
loopFilter(&frame);
return 0;
}