mp=eq2 was ported to a native libavfilter filter in commit
4c38e960d0.

Code adapted from James Darnley's port
Some fixes from Paul B Mahol <onemda@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Filter does not work, asserts here.
scale=interl=1,format=yuv422p should be used instead.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

The filter was ported to a native libavfilter filter in
a299cd5ab3.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

The only difference with mp=pp7 is that default mode is "medium", as stated
in the MPlayer docs, rather than "hard".

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

It has been ported to libavfilter.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Found-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This can be useful for determining telecine.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This can be useful for videos in which the interlacing pattern changes.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket #4008.

Found-by: Kierank
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

The documentation is mostly based on ass.h public header.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

In particular, allow pad_len and whole_len to have value set to 0, which
means that no padding will be added. Previously a value set to 0 meant
that that the filter had to pad forever.

The new semantics is clearer, also simplifies scripting since the option
value might be automatically computed, so that no checks need to be done
in case it is 0.

The old semantics was never documented and the logic was broken (the
filter was always adding samples indefinitely), so this should not break
backward compatibility.

8x8 is about 5x faster than 16x16 on 1080p input. Since a block size of
8x8 makes the filter almost usable (time wise) and it's not obvious if
8x8 or 16x16 is better from a quality PoV (it really depends on the
input and parameters), the filter now defaults to 8x8, and as a result
libavfilter is micro bumped.

This reverts commit 35b05c5184.
A warning is introduced in case this option is used.

Allow to dynamically evaluate the font color.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

It evaluates expression and outputs it as integer value, using specified
format.

Address trac ticket #3699.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Fixes ticket #3758

Reviewed-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Partially fixes Ticket #3404 (xbr filter remaining)

Signed-off-by: Mark Heath <silicontrip@gmail.com>
Signed-off-by: Dave Rice <dave@dericed.com>
Signed-off-by: Clément Bœsch <u@pkh.me>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

this filter is the same as showspectrum but with constant Q transform,
so frequency is spaced logarithmically

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Ported asettb (including the sr option for audio sample rate) from FFmpeg,
and copied/modified the existing settb documentation for asettb.

Signed-off-by: Katerina Barone-Adesi <katerinab+libav@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>