[FFmpeg-user] Low-quality transcode

Wouter Verhelst wouter at grep.be
Mon Feb 17 10:57:59 EET 2020

Hi Ted,

On Mon, Feb 17, 2020 at 03:03:26AM -0500, Ted Park wrote:
> Those settings seem like it would set up the encoder for constrained quality
> mode rather than VBR as you are expecting, setting a maximum quality. So as
> long as you kept the crf same in all your attempts not seeing an increase in
> quality is expected.

Ah, right. Thanks; that explains it.

> Check out this article on vp9 rc. It uses ffmpeg as an example.
> https://developers.google.com/media/vp9/bitrate-modes <https://developers.google.com/media/vp9/bitrate-modes>

Yeah, I'm aware of that article, I based those settings on that
documentation.  I should have just gone there again ;-)

Thanks for reminding me of crf,

<Lo-lan-do> Home is where you have to wash the dishes.
  -- #debian-devel, Freenode, 2004-09-22

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