4 ms·
Could it be some kind of buffer with the previous image data held in memory?
by staunch 16y ago
Could it be some kind of buffer with the previous image data held in memory?
- darren_ 16y agoThis does seem most likely, but the other thing is that this previous image data is from times when no-one was using the camera. So the question is where did the previous image data come from?
- Lazlo_Nibble 16y agoMy first guess at an explanation would be that the camera is actually a self-contained little image/video engine that's "running" (i.e., capturing images internally) anytime the phone is powered up, and that under certain circumstances tickled by FaceTime, polling the camera engine results in a cached frame getting kicked out of a camera-internal buffer. Mind you, that's based on absolutely no actual understanding of the hardware, software or APIs involved.