![]() It stands for bi-directional frame and I believe the difference is that they look at not only the previous frames, but also frames ahead of it. They load some pixels and tell existing ones where to move.įor all intents and purposes think of B-frames as the same thing as P-frames. ![]() In addition to having a small amount of pixels, P-frames contain tracking data for how the already existing pixels (from the previous I-frame and P-frames) and the new pixels move within the scene. They are the frames that allow for the file size to be smaller since not all these frames have an entire batch of new pixels. P- frames are types of frames that only contain partial pixels of an entire image. It is what the other types of frames look for to know how to present themselves. Throughout a video there will be many I-frames and the purpose of them is to load an entire new set of pixels into the video. They do this by not loading an entire new image in every frame and instead telling existing pixels where to move from the previous frame.Īn I-frame is a frame that consists of an entire image. The whole purpose of these frames is to reduce the size of the file while retaining the quality. ![]() Avi video files consist of 3 types of frames. ![]()
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