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MPEG-2 works by compressing in two different ways. Within a frame, it looks at groups of pixels (blocks) and compresses them based on patterns it finds within them. This is kind of similar to how JPEG compression work. the Macroblock quantization level describes how loosely the encoded block can represent the original block. The lower the number, the ...


After some deep Googling, I did find explanations for a few of these options: MPEG macroblock quantization level. Valid values are from 2 to 31. Low values of this variable mean higher quality and higher bitrate, so 2 is the highest quality and 31 is the lowest quality. VBV buffer size in units of 16k bits. The meaning of this parameter is ...

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