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[Bug 1531180] Re: Playing videos crashes in /android/system/lib/libgui.so

 

@Pat because we're using the Qt Multimedia components to play it from
the unity8 code, so that is the immediate place where to start
investigating.

Given the library it crashes it is probable the bug is in lower layers
(media-hub, something else) but it's may also be that the Qt Multimedia
components are using those lower layers wrong.

So after I could not find anything wrong in the unity8 side of the code
I decided to pass the bug to the layer unity8 uses, if someone that
knows Qt Multimedia investigates it and finds nothing wrong I guess it
should be passed down again.

Would you have prefered I had task it somewhere else?

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https://bugs.launchpad.net/bugs/1531180

Title:
  Playing videos crashes in /android/system/lib/libgui.so

Status in Canonical System Image:
  Incomplete
Status in qtmultimedia-opensource-src package in Ubuntu:
  New
Status in qtmultimedia-opensource-src package in Ubuntu RTM:
  New

Bug description:
  Using the code from
     https://code.launchpad.net/~unity-team/unity8/inline-dash-videos/+merge/280594

  One can play videos in unity8 dash directly.

  I have recorded 2 short videos (4 or 5 seconds) using the camera
  application, if i play them, at some point the dash will crash (on
  arale)

  Backtrace for current thread is not very useful
  [Switching to Thread 0xa78b4410 (LWP 4163)]
  0xb24a272e in ?? ()

  Other than to show the crash happens inside /android/system/lib/libgui.so
  $ grep libgui.so /proc/`pidof unity8-dash`/maps
  b2476000-b24cb000 r-xp 00000000 07:00 504        /android/system/lib/libgui.so
  b24cb000-b24d5000 r--p 00054000 07:00 504        /android/system/lib/libgui.so
  b24d5000-b24d6000 rw-p 0005e000 07:00 504        /android/system/lib/libgui.so

  The full thread backtrace is at http://paste.ubuntu.com/14411045/

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References