[Bug 1031439] Re: transcoding fails to start: NameError: global name 'Gst' is not defined

[Iain Lane]

The transmageddon SRU fix doesn't need tracking in its own bug; I'll
just reupload it.

** Description changed:

- All transcoding attempts fail the same - 
+ = gst0.10-python =
+ 
+ [ Description ]
+ 
+ gst-python0.10 didn't expose preset_set_app_dir, which the SRUed
+ transmageddon (0.20-1ubuntu0.1) relied upon.
+ 
+ [ Proposed fix ]
+ 
+ Cherry-pick upstream patch to expose this. Upload transmageddon with
+ appropriate versioned dep.
+ 
+ [ Development release fix ]
+ 
+ Identical.
+ 
+ [ Regression potential ]
+ 
+ Applications could rely on the new exposed functions without an
+ appropriate versioned dep, leading to runtime failures.
+ 
+ [ Test plan ]
+ 
+ Launch `transmageddon' from a terminal. Attempt to transcode a video.
+ Note that an error referring to preset_set_app_dir appears before the
+ update, and transcoding does not proceed. After the update, note that
+ transcoding does proceed without this specific error.
+ 
+ [ Original description ]
+ 
+ All transcoding attempts fail the same -
  ~$ transmageddon
  Traceback (most recent call last):
-   File "transmageddon.py", line 863, in on_transcodebutton_clicked
-     self._start_transcoding()
-   File "transmageddon.py", line 736, in _start_transcoding
-     self.videopasstoggle, self.interlaced, self.inputvideocaps)
-   File "/usr/share/transmageddon/transcoder_engine.py", line 60, in __init__
-     Gst.preset_set_app_dir("/usr/share/transmageddon/presets/")
+   File "transmageddon.py", line 863, in on_transcodebutton_clicked
+     self._start_transcoding()
+   File "transmageddon.py", line 736, in _start_transcoding
+     self.videopasstoggle, self.interlaced, self.inputvideocaps)
+   File "/usr/share/transmageddon/transcoder_engine.py", line 60, in __init__
+     Gst.preset_set_app_dir("/usr/share/transmageddon/presets/")
  NameError: global name 'Gst' is not defined
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: transmageddon 0.20-1ubuntu2
  ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0
  Uname: Linux 3.5.0-6-generic x86_64
  ApportVersion: 2.4-0ubuntu6
  Architecture: amd64
  Date: Tue Jul 31 13:42:04 2012
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120707)
  PackageArchitecture: all
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, user)
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, user)
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: transmageddon
  UpgradeStatus: No upgrade log present (probably fresh install)

** Summary changed:

- transcoding fails to start: NameError: global name 'Gst' is not defined
+ transmageddon fails to transcode because python-gst0.10 doesn't expose gst.preset_set_app_dir

** No longer affects: transmageddon (Ubuntu Precise)

** Changed in: gst0.10-python (Ubuntu Precise)
       Status: New => In Progress

** Changed in: gst0.10-python (Ubuntu Precise)
     Assignee: (unassigned) => Iain Lane (laney)

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https://bugs.launchpad.net/bugs/1031439

Title:
  transmageddon fails to transcode because python-gst0.10 doesn't expose
  gst.preset_set_app_dir

Status in “gst0.10-python” package in Ubuntu:
  Fix Released
Status in “transmageddon” package in Ubuntu:
  Fix Released
Status in “gst0.10-python” source package in Precise:
  In Progress
Status in “gst0.10-python” package in Debian:
  Unknown

Bug description:
  = gst0.10-python =

  [ Description ]

  gst-python0.10 didn't expose preset_set_app_dir, which the SRUed
  transmageddon (0.20-1ubuntu0.1) relied upon.

  [ Proposed fix ]

  Cherry-pick upstream patch to expose this. Upload transmageddon with
  appropriate versioned dep.

  [ Development release fix ]

  Identical.

  [ Regression potential ]

  Applications could rely on the new exposed functions without an
  appropriate versioned dep, leading to runtime failures.

  [ Test plan ]

  Launch `transmageddon' from a terminal. Attempt to transcode a video.
  Note that an error referring to preset_set_app_dir appears before the
  update, and transcoding does not proceed. After the update, note that
  transcoding does proceed without this specific error.

  [ Original description ]

  All transcoding attempts fail the same -
  ~$ transmageddon
  Traceback (most recent call last):
    File "transmageddon.py", line 863, in on_transcodebutton_clicked
      self._start_transcoding()
    File "transmageddon.py", line 736, in _start_transcoding
      self.videopasstoggle, self.interlaced, self.inputvideocaps)
    File "/usr/share/transmageddon/transcoder_engine.py", line 60, in __init__
      Gst.preset_set_app_dir("/usr/share/transmageddon/presets/")
  NameError: global name 'Gst' is not defined

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: transmageddon 0.20-1ubuntu2
  ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0
  Uname: Linux 3.5.0-6-generic x86_64
  ApportVersion: 2.4-0ubuntu6
  Architecture: amd64
  Date: Tue Jul 31 13:42:04 2012
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120707)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: transmageddon
  UpgradeStatus: No upgrade log present (probably fresh install)

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