[Bug 738102] v4l2bufferpool: cleanly handle streamon failure for output device

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=738102
  GStreamer | gst-plugins-good | git

Aurélien Zanelli <aurelien.zanelli> changed:

           What    |Removed                     |Added
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 Attachment #288036|0                           |1
        is obsolete|                            |

--- Comment #10 from Aurélien Zanelli <aurelien.zanelli at parrot.com> 2014-10-09 16:12:43 UTC ---
Created an attachment (id=288141)
 View: https://bugzilla.gnome.org/attachment.cgi?id=288141
 Review: https://bugzilla.gnome.org/review?bug=738102&attachment=288141

v4l2bufferpool: implement dispose method

Update commit message and add a comment about non moving gst_object_unref
(pool->obj->element) to dispose method.

pool->obj->element can't be set to NULL here since it's part of the v4l2object
and dispose could be called multiple times.

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