[Bug 742087] videoconvert fails to map buffer from v4l2src

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=742087
  GStreamer | gst-plugins-base | 1.x

--- Comment #2 from hptsf <hptsf at 163.com> 2014-12-31 06:42:35 UTC ---
"buffer could not be mapped", why?
And
i have tried the newer gstreamer(1.4.4).
but the problem still appear.

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