Artifacting can be pushed even further through oversaturation. Using any graphics software, you can export a JPG image-sequence at very low quality. As long as the codec is willing to decode the video stream with missing frames, data moshing will result. In the absence of frames, the codec attempts to fill in missing frames. The MPEG-4 codecs specify these different types of frames, which, like you say, is like a kind of motion vector. This article explains the relation between the different kinds of frames and how they're combined, but I think it's just missing frames in general and the codec's attempt to reconstruct: I have played MPEG-4 videos with large megabyte chunks missing, and gotten similar results - these would probably be missing any or all of the frame types.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |