[Bug 981803] Re: 720P video lagging, massive framedrops and out of sync

[James M. Leddy]

We're still blocking on bug 945987.

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Title:
  720P video lagging, massive framedrops and out of sync

Status in Cheese Camera Application:
  Expired
Status in OEM Priority Project:
  In Progress
Status in OEM Priority Project precise series:
  In Progress
Status in “cheese” package in Ubuntu:
  Fix Released
Status in “gst-plugins-bad0.10” package in Ubuntu:
  Fix Released
Status in “cheese” source package in Precise:
  Confirmed
Status in “gst-plugins-bad0.10” source package in Precise:
  Confirmed

Bug description:
  [ Impact ]

  This affects the entire distribution, on any laptop with a camera. The
  default "camera app" doesn't work well on Ubuntu. Cheese takes up all
  most all cpu cycles, and even so the recorded video is choppy. This
  reflects poorly on Ubuntu as an OS

  [ Test Case ]

  * Record video with cheese. t
  * Play back in Totem
  * Notice how choppy it is

  [ Regression Potential ]

  Low: The patch just adds another profile to gstreamer that makes it a
  higher priority process, and then tells cheese to use that profile.
  It's just a configuration change. I have tested and the patches have
  the intended result, the video is smoother than before.

  The side effect is that, on a fully loaded system, other processes
  will not be able to get cpu time as effectively. This should not be a
  problem because it's assumed that when you're recording the video, you
  won't be using other applications on your machine.

  [ Original Report ]

  When recording a video with Cheese with a 1280x720 resolution, the
  image is blurry whenever there is motion (this might be a webcam
  limitation) but after a few seconds there are also massive framedrops.
  This results in a jerky video at best, where the audio is at times
  completely out of sync with the video.

  When scaling back to 640x480 (the next 'best' thing), things are
  smoother (at least there are no massive framedrops). But 640x480 is
  not widescreen and not even close to HD, making Cheese useless for my
  aim of being able to create quick-yet-good-enough-looking headshot
  videos for online use.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: cheese 3.4.0-0ubuntu1
  ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
  Uname: Linux 3.2.0-23-generic x86_64
  ApportVersion: 2.0.1-0ubuntu3
  Architecture: amd64
  Date: Sat Apr 14 20:30:34 2012
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/cheese
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
  MachineType: Hewlett-Packard HP ProBook 6550b
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  RelatedPackageVersions:
   cheese        3.4.0-0ubuntu1
   cheese-common 3.4.0-0ubuntu1
  SourcePackage: cheese
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/04/2010
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68CDE Ver. F.03
  dmi.board.name: 146D
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 73.11
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68CDEVer.F.03:bd10/04/2010:svnHewlett-Packard:pnHPProBook6550b:pvr:rvnHewlett-Packard:rn146D:rvrKBCVersion73.11:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ProBook 6550b
  dmi.sys.vendor: Hewlett-Packar

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