[gstreamer-bugs] [Bug 572285] Buffer Array

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: git




------- Comment #7 from David Schleef  2009-02-20 17:47 UTC -------
I've been meaning to add disjoint buffers to GStreamer for years.  Thank you
for actually moving on the issue.

My plan was to split GstBuffer into 2 layers, the lower layer being a simple
wrapper of a contiguous memory region into a GstMiniObject, with reference
counting but no metadata.  The upper layer would contain the metadata and point
to one or more MemoryRegions to hold the data, including an offset and size to
specify a subregion of the MemoryRegion.

This rearrangement would subsume subbuffers and most buffer subclasses.  It
might even take over GstAdapter, since adapters are an attempt to get around
the disjoint buffer limitation.  It would allow buffers to share underlying
data while having different (writeable) metadata.

Obviously, all this requires an ABI change, so would be for 0.11 at least,
assuming someone does it.  I wouldn't be opposed to having something like this
in 0.10.

An actual comment on the patch:  Couldn't this be better solved by extending
(ahem, hacking to death) GstBuffer in a compatible way?


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