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

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: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Dave Rice <dave@dericed.com>

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

Signed-off-by: Dave Rice <dave@dericed.com>
Reviewed-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Partially fixes Ticket #3404 (xbr filter remaining)

Based on suggested change by Clément Bœsch.

Signed-off-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Resolution can be 1920x1080 or 960x540.

Signed-off-by: Lou Logan <lou@lrcd.com>

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: Lou Logan <lou@lrcd.com>

Found-by: bloody123
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: ValdikSS <iam@valdikss.org.ru>

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

Introduce the `font` option and make it optional to pass a fontfile.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This adds a new "replaygain_noclip" option to the filter, and, if enabled,
limits the gain applied for tracks where clipping would occur.

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

This aims to standardize the English used in the libavfilter
documentation, describing the same thing in the same way more often,
and significantly reduce the amount of outright errors, including
run-on sentences and sentence fragments.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

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>

This adds a new "replaygain_preamp" option to the filter, and simply adds its
value to the replaygain gain value.

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

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

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

Signed-off-by: Nicholas Robbins <nickrobbins@yahoo.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

There were a few grammar and spelling mistakes in this filter
description. I went through it and corrected them without changing
the meaning.

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

Signed-off-by: Jean First <jeanfirst@gmail.com>

Signed-off-by: Jean First <jeanfirst@gmail.com>

Metadata injection and logging. Not yet present visually.

Signed-off-by: Jean First <jeanfirst@gmail.com>

State the escaping rules more explicitly, reword various sentences and
drop confusing quoting example.

Should fix trac issue #3334.

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

This change makes it possible to transform the glyph or get its border before
turning it into a bitmap.

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

Improve consistency with the rest of the documentation.

In particular:
* set default value for accuracy to 15 (max)
* add zoomspeed for dynamic zoom (optzoom=2)
* make camera path optimization algorithm configurable
* update optzoom documenation in code to use new localmotions calculation function commandline arguments
* add debug option in vidstabtransform

Signed-off-by: Georg Martius <martius@mis.mpg.de>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>