[FFmpeg-user] Lossless x264

Rodney Baker rodney.baker at iinet.net.au
Mon Jan 16 22:31:51 CET 2012

On Tue, 17 Jan 2012 00:59:21 dE . wrote:

> [...]
> Or is it -qscale (for some codecs) and qp=<0 to 50>? I think these are
> better. These are the real quality scales right?

qscale = quantizer scale, not quality scale.

qp = p-frame quantization factor
qi = i=frame quantization factor

The higher the number, the higher the compression (and the lower the quality). 
The q-factor has a direct bearing on the bitrate of the output. 

Rodney Baker VK5ZTV
rodney.baker at iinet.net.au

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