In some cases the currently set GstVideoInfo is not interlaced, but
upstream caps are interlaced and the info is passed in the filter,
we should take that info into account and make sure that we do not
consider that case as a "pass through" case.
https://bugzilla.gnome.org/show_bug.cgi?id=741407
gstdeinterlace.c: In function 'gst_deinterlace_output_frame':
gstdeinterlace.c:1537:57: error: 'pattern.length' may be used uninitialized in this function [-Werror=maybe-uninitialized]
This actually is always initialized before it is used there, but
let's just silence gcc here.
The code handles a -1 pattern index, and it seems plausible
that a pattern might be found later, so it seems best to not
send an element error here.
Coverity 1139766
This only affects behaviour in telecine cases with pattern locking
enabled. The default case should be untouched.
This works with the output from fieldanalysis at least, but the field
order looks swapped for telecine mixed buffers with the
David_slides_Schleef clip.
I don't understand why these lines were added, they don't make sense to
me now and both David and I agree that removing them moves closer to
related logic being correct, therefore, they're being removed.
I've tested a few progressive, interlaced and telecine clips and they
all behave properly timestamp-wise and visually after these changes.
Handle G_MAXINT in the framerates better. If we cannot double or divide the
framerate, clamp to the smallest/largest possible value we can express instead
of failing.
Fixes https://bugzilla.gnome.org/show_bug.cgi?id=683861
Fix deinterlace unit test. Need to set right field on output caps.
Also remove right field (not old 0.10 "interlaced" boolean field)
from caps in unit test before comparing old and new.
Remove some bogus code I added during porting that would error out
on missing or variable framerates in input caps. Handle this like
we do in 0.10
Fixes test_mode_disabled_passthrough unit test check.
RFF only occurs on progressive frames in telecine sequences. For
deinterlace, we don't want these repeated fields as we will simply be
pushing the progressive frame and then moving on.
However, we need to consider RFF in order to correctly identify patterns
and adjust the timestamps.
The logic now works better if we filter orphans, then progressive, then
telecine interlaced fields which need to be woven and fall through to
interlace. Telecine interlaced fields will be regularly deinterlaced if
there is no pattern lock for us to be sure that we have a telecine
pattern.
Telecine sequences that aren't 24fps progressive with RFF flags can't
really be tested until fieldanalysis is ported.
