[Bug 973014] Re: gstreamer0.10-plugins-bad, (libgstvideoparsersbad.so), causes a failure to decode many common video files encoded as AVC 1 Baseline - L2.1, Baseline - L1.1 & others

[Launchpad Bug Tracker]

** Branch linked: lp:ubuntu/gst-plugins-bad0.10

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Title:
  gstreamer0.10-plugins-bad, (libgstvideoparsersbad.so), causes a
  failure to decode many common video files encoded as AVC 1 Baseline -
  L2.1, Baseline - L1.1 & others

Status in The GStreamer Multimedia Framework:
  Fix Released
Status in “gst-plugins-bad0.10” package in Ubuntu:
  Confirmed
Status in “gst-plugins-bad0.10” source package in Precise:
  Confirmed
Status in “gst-plugins-bad0.10” source package in Quantal:
  Confirmed
Status in “gst-plugins-bad0.10” package in Debian:
  New

Bug description:
  Sponsors: Please start by uploading raring.debdiff

  SRU Justification (for both Quantal and Precise):

  [Impact]
  Several H264 video files are playing back without video output in 12.04 and 12.10. Applications such as totem, totem-mozilla, banshee, minitube, gnome-sushi and transmageddon are affected.

  [Testcase]
  Download novideo2.mp4 and open it in totem. The bug shows it self as black screen video output. If it has correct video, the bug is fixed.

  [Regression Potential]
  The patch size is quite big. Recommend testing of several types for h264 files to make sure there are no regressions. However; the patch originates from upstream, and a lot of people are already using it without regressions (according to comment #73).

  Given the number of users affected and duplicates of this bug, I would
  consider it worth the risk.

  Please consider this for SRU.

  =======

  Current workaround:
  The fix has been packaged in this PPA:
   https://launchpad.net/~diwic/+archive/gstreamer-h264-testing

  sudo add-apt-repository ppa:diwic/gstreamer-h264-testing
  sudo apt-get update
  sudo apt-get dist-upgrade

  Restart the affected application(s) and retry.
  ======

  *Adjusted description so as not to show as email to non logged in people
  Most affected files are   Baseline at L2.1, Baseline at L1.1 *

  Those would be the most likely to fail to be decoded but certainly  not limited to kust them.
  These files are commonly found online though many users will have locally.
  Also affected  other than totem, totem youtube plugin, &  banshee would be the mozilla-plugin & minitube.
  Typically the audio will play with no video though sometimes neither

  *Moving libgstvideoparsersbad.so to a .bak allows decoding to take
  place on the previously affected files, but *is not the recommended
  fix*

  Upstream has provided a commit to fix in both gstreamer 1.0 & .10 (gst-plugins-bad0.10.23
  Attached below is a patch taken from the 0.10.23 commit to be applied to 0.10.22 that's currently used in 12.04

  Also attached is a cut small sample file, noting the file plays fine in all non gstreamer players & in all gstreamer players in 11.10 & earlier
  The file should be playable in totem, banshee & firefox with totem-mozilla plugin installed but only audio is decoded

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: libgstreamer0.10-0 0.10.36-1
  ProcVersionSignature: Ubuntu 3.2.0-21.34-generic-pae 3.2.13
  Uname: Linux 3.2.0-21-generic-pae i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0-0ubuntu3
  Architecture: i386
  Date: Tue Apr  3 21:33:08 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: gstreamer0.10
  UpgradeStatus: No upgrade log present (probably fresh install)

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