Advice to tweak settings to reduce blockiness

General questions or discussion about HandBrake, Video and/or audio transcoding, trends etc.
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Nymmie
Posts: 8
Joined: Sun Mar 06, 2016 4:30 am

Advice to tweak settings to reduce blockiness

Post by Nymmie »

Some of my encodes in HandbrakeCLI if there is some film grain end up getting some large visible blocks that are a bit jarring to see. They seem to only appear in darker scenes which film grain is present.

Code: Select all

HandBrakeCLI -i "Episode 01 'Evolution'.mkv" -o "/home/ryan/Videos/TV/Star Trek The Next Generation/Season 03/Episode 01 'Evolution'.mkv" --encoder x265 --encoder-preset placebo --vb 3000 --rate 23.976 --cfr --audio 1,2,3 --aencoder copy:dtshd,copy:ac3,copy:ac3 --aname Remastered,Original,Japanese --width 1440 --height 1080 --crop 0:0:240:240 --non-anamorphic --subtitle 1,7
echo "Episode 01 Encoded"
./Episode\ 02.sh
Should I attack this problem by reducing film grain? Increasing bitrate? or reducing the encoder-preset?
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BradleyS
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Posts: 1860
Joined: Thu Aug 09, 2007 12:16 pm

Re: Advice to tweak settings to reduce blockiness

Post by BradleyS »

I recently gave related advice on this thread, perhaps it will help you: viewtopic.php?f=11&t=37295
Nymmie
Posts: 8
Joined: Sun Mar 06, 2016 4:30 am

Re: Advice to tweak settings to reduce blockiness

Post by Nymmie »

OK, I checked that out... so I will do some test encodes to find out how much denoising will be optimal.

Hopefully it what I need doesnt destroy detail too bad in scenes that are fine.
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