This is not public API, no it has no need for an alloc() and free()
functions. The struct can reside on stack.
Signed-off-by: James Almer <jamrial@gmail.com>
Because the interlacing filter halves the effective framerate, we
need to ensure that no CEA-708 data is lost as frames are merged.
Make use of the new ccfifo mechanism to ensure that caption data
is properly preserved as frames pass through the filter.
Thanks to Thomas Mundt for review and noticing a couple of
missed codepaths for injection on output. Thanks to Lance Wang
for pointing out a memory leak.
Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
This filter, when used in the "pad" mode, currently makes the
distinction between limited and full range solely by testing for YUVJ
pixel formats at link setup time. This is deprecated and should be
improved to perform the detection based on the per-frame metadata.
In order to make this distinction based on color range metadata, which
is only known at the time of filtering frames, for simplicity, we simply
allocate two copies of the "black" frame - one for limited range and the
other for full range metadata. This could be done more dynamically (e.g.
as-needed or simply by blitting the appropriate pixel value directly),
but this change is relatively simple and preserves the structure of the
existing code.
This commit actually fixes a bug in FATE - the new output is correct for
the first time. The previous md5 ref was of a frame that incorrectly
combined full-range pixel data with limited-range black fields. The
corresponding result has been updated.
Signed-off-by: Niklas Haas <git@haasn.dev>
The documentation still mentions numerical constants in addition to textual
ones. It is also wrong to use distinct modes as flags and it disallows us to
actually use the flags field for real flags in the future.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This complex (-1 2 6 2 -1) filter slightly less reduces interlace 'twitter' but better retain detail and subjective sharpness impression compared to the linear (1 2 1) filter.
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
Reported-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Inspired by discussion with Kieran Kunhya <kierank@obe.tv>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This permits replacing it by a optimized implementation
Based-on / Idea-from: 2e1704059a by Kieran Kunhya
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
James Almer
Devin Heitmueller
Niklas Haas
Paul B Mahol
Marton Balint
Thomas Mundt
Michael Niedermayer