[Bug 1698282] [NEW] Totem uses dramatically higher CPU than any other video player

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Daniel van Vugt (vanvugt):

Totem uses dramatically higher CPU than any other video player.

Example 1: software playback under Gnome Shell Wayland:

totem: 120% (but drops to 80% in Unity7)
mplayer: 40%
vlc: 40%
[all are using ffmpeg for decoding]

Example 2: hardware-accelerated playback under Gnome Shell Xorg:

totem: 11%
gst-play-1.0: 3%
[both are using gstreamer-vaapi for decoding]

Since the decoding libraries are theoretically the same it sounds like
totem's performance problems might be in its rendering path.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: libgstreamer1.0-0 1.12.0-2
ProcVersionSignature: Ubuntu 4.10.0-22.24-generic 4.10.15
Uname: Linux 4.10.0-22-generic x86_64
ApportVersion: 2.20.5-0ubuntu4
Architecture: amd64
Date: Fri Jun 16 12:57:11 2017
InstallationDate: Installed on 2017-05-03 (44 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170502)
LogAlsaMixer: Error: command ['/usr/bin/amixer'] failed with exit code 1: amixer: Mixer attach default error: No such file or directory
SourcePackage: gstreamer1.0
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: clutter-gtk
     Importance: Medium
         Status: Confirmed

** Affects: gstreamer1.0
     Importance: Medium
         Status: Fix Released

** Affects: clutter-1.0 (Ubuntu)
     Importance: Undecided
     Assignee: Daniel van Vugt (vanvugt)
         Status: Confirmed

** Affects: clutter-gst-3.0 (Ubuntu)
     Importance: Undecided
     Assignee: Daniel van Vugt (vanvugt)
         Status: Confirmed

** Affects: clutter-gtk (Ubuntu)
     Importance: High
     Assignee: Daniel van Vugt (vanvugt)
         Status: In Progress

** Affects: totem (Ubuntu)
     Importance: Medium
     Assignee: Daniel van Vugt (vanvugt)
         Status: Fix Released


** Tags: amd64 apport-bug artful performance
-- 
Totem uses dramatically higher CPU than any other video player
https://bugs.launchpad.net/bugs/1698282
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