[Bug 745372] vpxdec: Should try to avoid copies at output

GStreamer (GNOME Bugzilla) bugzilla at gnome.org
Mon Nov 30 16:29:17 PST 2015


https://bugzilla.gnome.org/show_bug.cgi?id=745372

--- Comment #12 from Nicolas Dufresne (stormer) <nicolas.dufresne at collabora.co.uk> ---
This is unfinished. I use a difference approach, where I simply use the
GstMemory to carry the memory further downstream (allowing to avoid one copy
for few sinks like the GL one). This give 15-20% improvement when decoding a
720p VP9 video, though it has the same side effect as FFMPEG where READWIRTE
mapped memory get pushed.

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