The current code is memsetting the GstVideoFrame.data address to 0s (which
causes a segfault). This member is actually an array of data buffers (one for
each plane). This fix iterates over each data plane to clear them all.
https://bugzilla.gnome.org/show_bug.cgi?id=695655
This reverts part of "visual: enable commented out code again."
(commit 8222ba16c8).
The shader code does indeed look broken (or rather,
it makes assumptions that are not necessarily true here,
namly that pixel stride is 4, for example), which
makes totem very crashy and causes other weird behaviour.
Also see https://bugzilla.gnome.org/show_bug.cgi?id=683527
Add support for GstVideoMeta and GstVideoFrame.
Remove some redundant fields that are also in GstVideoInfo
Disable the shader code, it looks broken.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=681719