soundconverter makes no progress while converting from mpg

[Rumpeltux]

Binary package hint: soundconverter

I wanted to extract the audio of a mpg video and thus wanted SoundConverter to convert it to mp3.
The progress starts, there is no error output or warning messages, but the progress never proceeds, i.e. the “estimated time remaining” increases without the job getting done at all.

The same problem is described here: http://ubuntuforums.org/showthread.php?t=865223
The suggested workaround is to use ffmpeg or mplayer to do the task.

Totem plays the input file just fine.

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/soundconverter
InterpreterPath: /usr/bin/python2.6
NonfreeKernelModules: nvidia
Package: soundconverter 1.4.1-0ubuntu1
PackageArchitecture: all
ProcEnviron:
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: soundconverter
Uname: Linux 2.6.28-15-generic x86_64

[Rumpeltux (rumpeltux)]

There is an undocumented --debug switch, that shows the launched pipeline:
giosrc location="file:///….mpg" name=src ! decodebin name=decoder ! audioconvert ! lame quality=2 vbr=4 vbr-quality=3 ! xingmux ! id3v2mux ! giosink location=file:///….mp3
Which (as gst-launch -v reveals) causes the hanging then.

So the bug seems rather to be in gstreamer’s decoder? (unless the pipeline should be different)

[GautierPortet (kassoulet)]

The hanging is caused by gstreamer indeed.
SoundConverter should not display stupid progress information like negative remaining time, and should try to detect hangs, but how ?