[Bug 731280] New: vp8 Graphical Decode Error on iOS

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=731280
  GStreamer | gst-plugins-good | 1.2.4

           Summary: vp8 Graphical Decode Error on iOS
    Classification: Platform
           Product: GStreamer
           Version: 1.2.4
        OS/Version: other
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.freedesktop.org
        ReportedBy: 0 at psycoti.ca
         QAContact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---


Created an attachment (id=277966)
 --> (https://bugzilla.gnome.org/attachment.cgi?id=277966)
Screenshot of garbled frames

Using a playbin on iOS to play a webm file, like
http://video.webmfiles.org/big-buck-bunny_trailer.webm results in most pixels
on the screen being incorrect when running on an actual device.

They change all over the image and some frames seem to have more glitches than
others.
If you squint, you can tell what the frame should look like, so some pixels are
getting through, but not a lot.

We've tried other webm files and they have the same problem.
Running the above video on the emulator works mostly, but garbles a little
towards the end.
Running on a real device is unwatchable.

Other videos don't seem to have any trouble with the emulator, but don't work
on the phone either.

Watching videos in h264 works fine everywhere.

The test device is an iphone5s and I believe it's running ios7.0.6

The only things on the console are 
0:01:08.923024000 [335m10720[00m  0x2bc26f8 [33;01mWARN   [00m [00m          
osxaudio 
                                         
./gstosxcoreaudioremoteio.c:74:gst_core_audio_get_samples_and_latency_impl:<GstCoreAudio at 0x3430848>[00m
Failed to get latency: \316\377\377\377

and
 0:00:00.949570000 [335m10720[00m  0x2bc2ba8 [33;01mWARN   [00m [00m       
osxaudiosink
gstosxaudiosink.c:556:gst_osx_audio_sink_allowed_caps:<osxaudiosink0>[00m This
driver does 
                                          not support
kAudioDevicePropertyPreferredChannelLayout.

Which don't seem relevant but I'll include them anyway.

I've attached a screenshot:

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