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View Full Version : Dealing with Blocks


Lorek
5th November 2007, 00:52
I'm kind of new to encoding with x264 and i've been running up against a problem with blocks in my gradients, shadows, and dark colors. Typically I encode from a DVD progressive source so no de-interlacing takes place. Upping the Bitrate seems to have no effect, i'm usually encoding @2500, and having more reference frames seems to only make the blocking worse. My encodes with a CE-High Profile seem better and more clearer then my encodes on HQ-Insane. I only seem to run up against this with animated content though. Are there any suggestions I can use to clear up this annoying block issue?

Dark Shikari
5th November 2007, 00:53
Adaptive quantization is your friend, use --aq-strength 0.5 or higher.

Lorek
5th November 2007, 04:31
That's odd its saying unknown command when i add that to my CLI. I must be doing something wrong.

Zanejin
5th November 2007, 04:35
AQ (adaptive quantization) is not available in the SVN builds of x264. It's a patch that's included in builds by Cef (http://mirror05.x264.nl/Cef/).

vpupkind
10th November 2007, 00:10
AQ (adaptive quantization) is not available in the SVN builds of x264. It's a patch that's included in builds by Cef (http://mirror05.x264.nl/Cef/).
Where can I get the patches themselves?

Sagekilla
10th November 2007, 00:34
You'll find the patches under the "patches directory" if you checked the link out.

Zanejin
10th November 2007, 01:22
For clarification, the said patch's file name is "x264_aq-brdo.diff".