Bug 789254 – Create videos with vp9 instead of vp8 for much smaller file sizes

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Bug 789254 - Create videos with vp9 instead of vp8 for much smaller file sizes


Summary:	Create videos with vp9 instead of vp8 for much smaller file sizes


Status:	RESOLVED DUPLICATE of bug 791419

Product:	gnome-getting-started
Classification:	Applications
Component:	general
Version:	git master
Hardware:	Other Linux

Importance:	Normal normal
Target Milestone:	git master
Assigned To:	gnome-getting-started-maint
QA Contact:	gnome-getting-started-maint

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2017-10-20 15:22 UTC by Jeremy Bicha
Modified:	2017-12-10 21:51 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Jeremy Bicha 2017-10-20 15:22:54 UTC

During the GNOME 3.26 release cycle,  Will Cooke experimented with using vp9 to make the gnome-getting-started-docs videos instead of vp8. He estimated that it reduced the file size by about 50% and the videos still seemed to look ok.

I don't have an exact patch for you, but I believe this is the command he used:

ffmpeg -i gnome-change-wallpaper.webm -c:v libvpx-vp9 -b:v 0 -c:a libvorbis -threads 4 -deadline good gnome-change-wallpaper.vp9.webm 

More Details
============

$ ls -l
total 16332
-rw-rw-r-- 1 will will  446817 Jul  4 14:57 gnome-change-wallpaper.vp9.webm
-rw-r--r-- 1 will will  921900 Jul  4 14:46 gnome-change-wallpaper.webm
-rw-rw-r-- 1 will will  806369 Jul  4 14:59 gnome-launching-applications.vp9.webm
-rw-r--r-- 1 will will 1725848 Jul  4 14:46 gnome-launching-applications.webm
-rw-rw-r-- 1 will will  956065 Jul  4 15:00 gnome-responding-to-messages.vp9.webm
-rw-r--r-- 1 will will 2193467 Jul  4 14:46 gnome-responding-to-messages.webm
-rw-rw-r-- 1 will will 1056729 Jul  4 15:01 gnome-task-switching.vp9.webm
-rw-r--r-- 1 will will 2405018 Jul  4 14:46 gnome-task-switching.webm
-rw-rw-r-- 1 will will 2061501 Jul  4 15:03 gnome-windows-and-workspaces.vp9.webm
-rw-r--r-- 1 will will 4128723 Jul  4 14:46 gnome-windows-and-workspaces.webm



921900	gnome-change-wallpaper.webm		
1725848	gnome-launching-applications.webm		
2193467	gnome-responding-to-messages.webm		
2405018	gnome-task-switching.webm		
4128723	gnome-windows-and-workspaces.webm		
11374956	11108.35546875		10.8480033875
			
			
			
			
446817	gnome-change-wallpaper.vp9.webm		
806369	gnome-launching-applications.vp9.webm		
956065	gnome-responding-to-messages.vp9.webm		
1056729	gnome-task-switching.vp9.webm		
2061501	gnome-windows-and-workspaces.vp9.webm		
5327481	5202.6181640625		5.0806818008


Raw files:  https://drive.google.com/file/d/0B2Llf4FvOak-NTJ5WDNaUm8wRVk/view?usp=sharing

Comment 1 Petr Kovar 2017-12-10 21:51:53 UTC

Thanks for taking the time to report this.
This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.

*** This bug has been marked as a duplicate of bug 791419 ***