Quote:
Originally Posted by mandarinka
I'm hoping that the final version of the encoder won't be so smooth-happy...
|
I did a test a while back and apparently tune=psnr is the
default. As in, both encodes (no tunings and psnr tuned) produce exactly the same filesize/metrics, the
doc website states something similarly,
tune=ssim has been broken for several weeks, and oh,
they don't even appear to be testing with ssim.
That said, at low bitrates where things get desperate, graceful quantization (a la x264) doesn't mean as much as simply having a larger mathematical buffer and getting as much into one bit as possible.