This change applies only for automatic proxy building, when strip
is added to timeline. Manual building process is not affected.
Don't build proxy file if movie is already fast enough to seek.
To determine seek performance, check if whole GOP can be decoded
in 100 milliseconds.
To consider some variation in GOP size, large number of packets are
read, assuming that each packet will produce 1 frame. While this is not
technically correct, it does give quite accurate estimate of maximum GOP
size.
This test will ensure consistent performance on wide array of machines.
Check should be done in order of few milliseconds.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D11671
Note that these changes are limited simple cases as these kinds of
changes could allow for errors when refactoring code when the known
state is not so obvious.
Use LISTBASE_FOREACH instead.
SEQ_CURRENT_BEGIN did null checks, so now these must be explicit.
Reviewed By: campbellbarton
Differential Revision: https://developer.blender.org/D10823
Build proxies automatically when added to sequencer timeline and when
switching preview size.
This behavior can be disabled in user preferences.
Reviewed By: sergey, fsiddi
Differential Revision: https://developer.blender.org/D10363
Building proxy with meta strip selected resulted in attempt to render
meta strip itself and save result as image as is done when building
image proxies.
Remove meta strip from list of supported strips.
Multicam, Meta and scene strip are cleared from poll function in UI as well.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D10001
