[Bug 757254] Generic GstMeta not copied because buffer is not writable

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=757254

--- Comment #2 from Thiago Sousa Santos <thiagossantos at gmail.com> ---
Unfortunately it is not that simple, using the no-ref flag can be dangerous as
in some scenarios the buffer in a video frame is replaced and unref'd directly
while libav seems to still possess a reference to the frame, causing it to try
and unref it again.

Some further investigation is needed, it seems wrong to unref a mapped buffer.

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