https://bugs.documentfoundation.org/show_bug.cgi?id=139356

Buovjaga <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |ilmari.lauhakangas@libreoff
                   |                            |ice.org

--- Comment #4 from Buovjaga <[email protected]> ---
Created attachment 168653
  --> https://bugs.documentfoundation.org/attachment.cgi?id=168653&action=edit
Screencast of the issue

Note to Rizal, this is how I compressed your original file with two commands
(two passes):

ffmpeg -y -i tdf139356_issue.mp4 -c:v libaom-av1 -strict -2 -b:v 200K -g 60
-keyint_min 60 -sc_threshold 0 -row-mt 1 -tile-columns 1 -tile-rows 0 -threads
8 -cpu-used 4 -pass 1 -f matroska /dev/null

ffmpeg -y -i tdf139356_issue.mp4 -c:v libaom-av1 -strict -2 -b:v 200K -maxrate
400K -bufsize 400k -g 60 -keyint_min 60 -sc_threshold 0 -row-mt 1 -tile-columns
1 -an -tile-rows 0 -threads 8 -cpu-used 4 -pass 2 tdf139356_issue_av1.mkv

The second one took like 2 hours to complete, but the result is very nice :)

Adapted from the commands in
https://www.streamingmediaglobal.com/Articles/ReadArticle.aspx?ArticleID=143181

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