Hello:<div><br></div><div>My name is Wei and I am now a master student at University of Michigan. I am now using libx264 under Linux to do some projects. In one of these projects, I need to encode a frame into 2different QP : some specified macroblock to a higher QP, the other to a lower one. I tried to modified the file encoder/macroblock.c but it seems to be unstable and it will screw up the image. My question is: is there any way to specified QP for each macroblock? If i need to modify the code in x264, which part of code should I try?</div>
<div><br></div><div>Thank you very much.</div><div><br></div><div>Wei Miao</div>