Hi, I'm using overlay2sink to display my video stream and alsasink with audio stream. The problem is when the bit rate is too high and the CPU usage reach to 90%, some frames are droped in overlay2. for example, decoder show its output is 200frames, and overlay2 shows it has displayed 150frames, or even less. I guess it is because the yuv frames reach overlay2 later than the audio stream reach alsasink, so I set the timestamps of yuv frames later than the original ones in decoder plugin, such as 50ms. It work well, overlay2 will display all the frames or most of them, and people can't feel the video is later than the audio. What I want to ask is that is there any negative effect or risk? Or you have other comment? Thanks!