Blender Git Loki

Merging r50226 through r50236 from trunk into soc-2011-tomato

remove incorrect comment, add in useful one.

fix [#32417] Grease Pencil color change + DopeSheet 'Summary' = crash

summery wasn't checking fcurve types.

Sequencer: fix for wrong color space sequencer effects were working in

BGE: Make sure lib loaded cameras are added to the active scene's camera list.

ensure there are always the same number of feather points and non feather points when drawing.

Sequencer: typo fix

code cleanup: quiet warning for dead assignment.

code cleanup: remove dead assignments, gave mask vars clearer names & moved some mask evaluation funcs into mask_evaluate.c

Merging r50224 through r50225 from trunk into soc-2011-tomato

Fix zooming in/out preview in sequencer

It was a regression since disabling Y-axis zooming in sequencer.
Now check region type and allow all kind of zooming for preview
region.

Merging r50192 through r50223 from trunk into soc-2011-tomato

code cleanup: split out mask spline evaluation into its own file.

Color Management: correction to previous commit

fix for build error without ffmpeg

style cleanup: whitespace

Color Management: CMake should detect yaml-cpp and tinyxml libraries automatically

This makes Blender compilable with CMake and OCIO libraries from SVN.

Style cleanup: whitespace

Some FFmpeg changes

- Make FFmpeg initialization called from creator, not from functions
which requires FFmpeg. Makes it easier to follow when initialization
should happen.

- Enable DNxHD codec. It was commented a while ago due to some strange
behavior on some platforms. Re-tested it on Linux and Windows and
it seemd to be working quite nice. Would let it be tested further,
if it wouldn't be stable enough, easy to comment it again.

- Make non-error messages from writeffmpeg.c printed only if ffmpeg
debug argument was passed to blender. Reduces console pollution
with messages which are not useful for general troubleshooting.
Error messages would still be printed to the console.

- Show FFmpeg error message when video stream failed to allocate.
makes it easier to understand what exactly is wrong from Blender
interface, no need to restart blender with FFmpeg debug flag and
check for console messages.

Used custom log callback for this which stores last error message
in static variable. This is not thread safe, but with current
design FFmpeg routines could not be called form several threads
anyway, so think it's fine solution/

Bugfix [#32410] Create New Group (CTRL+G) tried to activate even when nothing is
selected

Some group operators were missing poll() callbacks