[x264-devel] [libx264] About per-macroblock encoding

[Max Lapshin]

Looks like you want to encode ROI: region of interest like in IP cameras
that detect motion and encode motion area with better quality.



On Sun, Jul 6, 2014 at 3:28 PM, Wei Miao <miaowei at umich.edu> wrote:

> Hello:
>
> 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?
>
> Thank you very much.
>
> Wei Miao
>
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