Bug#795020: [pitivi] no longer responds after deleting the audio track of a video

[Simon Wenner]

Package: pitivi
Version: 0.94-2
Severity: normal

Add the attached video to the timeline. Ungroupe audio and video. Delete
the audio. Application no longer responds.
The bug happens abut 50% of the time. Probably a race condition.

Terminal output:

ERROR 17:42:24 pipeline             _handleErrorMessage: error from
<__main__.GstVideoTestSrc object at 0x7f1f9c0663f0 (GstVideoTestSrc at
0x33e2400)>: gst-stream-error-quark: Interner Fehler im Datenfluss. (1)
(gstbasesrc.c(2933): gst_base_src_loop ():
/pitivi+utils+pipeline+Pipeline:pitivi+utils+pipeline+pipeline0/GESTimeline:gestimeline0/GESVideoTrack:gesvideotrack0/GnlComposition:gnlcomposition0/GnlSource:gnlsource20/GstBin:bin17/GstVideoTestSrc:src:
streaming task paused, reason not-negotiated (-4))
(../../usr/lib/x86_64-linux-gnu/pitivi/python/pitivi/utils/pipeline.py:481)


--- System information. ---
Architecture: amd64
Kernel: Linux 3.16.0-4-amd64

Debian Release: 8.1
990 stable security.debian.org
990 stable mirror.switch.ch
500 testing security.debian.org
500 testing mirror.switch.ch
200 unstable mirror.switch.ch
150 experimental mirror.switch.ch

--- Package information. ---
Depends (Version) | Installed
==========================================-+-===========
libc6 (>= 2.2.5) |
libcairo2 (>= 1.2.4) |
python (>= 2.7) |
python-gi (>= 3.10) |
gir1.2-glib-2.0 |
gir1.2-gstreamer-1.0 (>= 1.2.3) |
gir1.2-gst-plugins-base-1.0 (>= 1.2.3) |
gir1.2-ges-1.0 (>= 1.2.0) |
gir1.2-pango-1.0 |
gir1.2-gdkpixbuf-2.0 |
gir1.2-gtk-3.0 |
gir1.2-clutter-1.0 |
gir1.2-clutter-gst-2.0 |
gir1.2-gtkclutter-1.0 |
python-gst-1.0 |
python-numpy |
python-matplotlib |
python-xdg |
python-cairo |
python-gi-cairo |
python-dbus |
gstreamer1.0-plugins-base (>= 1.2.3) |
gstreamer1.0-plugins-good (>= 1.2.3) |
gstreamer1.0-pulseaudio |
OR gstreamer1.0-audiosink |
gstreamer1.0-x |
OR gstreamer1.0-videosink |
gstreamer1.0-gnonlin (>= 1.2.0) |
gnome-icon-theme |


Package's Recommends field is empty.

Suggests (Version) | Installed
========================================-+-===========
gstreamer1.0-plugins-ugly | 1.4.4-2+b1
gstreamer1.0-plugins-bad | 1.4.4-2.1+b1
gstreamer1.0-libav | 1.4.4-2
frei0r-plugins | 1.4-3
gir1.2-notify-0.7 | 0.7.6-2
gir1.2-gnomedesktop-3.0 | 3.14.1-1
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