What’s CBR/ABR/VBR?

Jan 13th, 2010 by dvdxplayer 1,396 views |Comments Off

CBR means that the stream’s bitrate is constant and never changes.
VBR means that the stream’s bitrate is variable, and changes in according to the amount of information that needed to be encoded.
ABR has a variable bitrate for each frame, but its average bitrate is a constant.

Conclusion:
CBR is a private-case of ABR which is a private-case of VBR.

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