Issue was caused by update RNA callbacks freeing the dependency
graph, which is only needed to tag depsgraph for rebuild.
Solved by using a flag for the depsgraph which indicated that it
is to be rebuilt.
D1751, remove this library since its quite a specific - only supports an older version of this codec.
Also ffmpeg has added support for recent versions of the codec.
The issue was caused by fix for 31017 which resulted in some
missing intersecitons recorded which screwed inner/outer checks.
This is an old bug, so didn't bother with forcing re-distribution
to happen on file open to avoid possible other regressions.
The issue was introduced by a fix for T44713 which only made GLSL
consistent with Cycles.
Now we do have conditional averaging or proper luma weighting based
on whether we're new old old shading system. Not totally ideal but
should work for until we re-design viewport possibly breaking how
Blender Internal does implicit conversion.
Original change in d631252 was not quite correct because it
was missing release since the acquire() will return NULL.
Hopefully now all the cases are covered.
Such configuration used to cause quite confusing situation when
stamp will use actual scene's statistics but metadata from strip
will be used for the saved file (basically, causing different
information stamped and saved as metadata).
Don't think it was desired behavior and it's something what
artists here in the studio wants to be fixed.
This way it's possible to have some color-correction modifications on
top of the render result and yet still have proper metadata stored.
Usecase: Access per-frame render-time of the movie frames from the
final export.
In some cases transform modes would use the custom-data pointer,
other times the transform conversion functions would.
However with some combinations (bone mirror + bend for eg),
both conversion & transform mode would use this pointer causing a crash.
Fix this by having 2 custom-data pointers:
one for the mode, another for the data-type.
This also simplifies time-slide which was conditionally mixing mode/type data in the one array.
