[gst-devel] YUV420p buffer plane alignmentg.
thibault.jochem at amundis.fr
Wed Feb 24 11:54:58 CET 2010
I'm working with an YUV buffer taken from a fake sink, and I have some
troubles to find the right data alignment.
For "standard" resolution, it's ok, but with Big Buck Bunny 480p for
example, which is 854x480 there is some kind of alignment :
I figured out that for U and V buffer, each row is aligned to
even-numbered bytes (as buffers are 427x240).
But I'm still missing something, as my total buffer size is 616320b
(reported by gstreamer), whereas my datas + alignment weight 615360b
..... so I'm still missing 960b
I also noticed that by U and V buffer are "offsetted" .... so I guess
that there is some padding between buffers ... but I'd like to know
exactly what's going on.
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