[Bug 773833] rtpL16depay, rtpL24depay: support depayloading in place

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=773833

--- Comment #5 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
(In reply to Petr Kulhavy from comment #4)
> I've starting writing the patch for the second part and I'm wondering if the
> gst_rtp_drop_meta() in gst_rtp_L16_depay_process() also requires
> gst_buffer_make_writable() to be called beforehand?
> 
> Because if yes then the copy is inevitable even in case the channels come
> already in the right order...

We could make it so that it only requires writability if there are metas to be
dropped. But your problem is not the make_writable() AFAIU, but that you need
to map the buffer writable. These are two different aspects. The writability of
the buffer (the metadata) and the memory (the actual media).

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