draw a color line for the max level in the given duration

linear (current behaviour) or log display (more close to classic audio meter)

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

Remove not needed code.

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

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

0 means no correction, not 0.5.

Also document ranges and defaults for options.

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

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Info about default value of bind_address option and its abbreviated
version (b). Example modified to have named instanced filter and to show
its use.

Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu>
Signed-off-by: Lou Logan <lou@lrcd.com>

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

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

possible value are h or v.

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

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

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

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

So user can pick which channels to extract.

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

This makes output more visible when overlayed.

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

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

Also use macros for xflat and aflat mode.

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

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

This patch makes it possible to dinamically close the current segment
and step to the next one by introducing command handling capabilities
into the filter. This new feature is very usefull when working with
real-time sources or live streams as source. Combinig usage with zmqsend
tool you can interactively end the current segment and step to next one.

Signed-off-by: Bela Bodecs <bodecsb@vivanet.hu>

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

This is a common use case.

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

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

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

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

Signed-off-by: Kyle Swanson <k@ylo.ph>

Include some example programs.

This way it can be also used for other format.

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

Support for zeros/poles syntax on Z-plane.

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

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

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

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

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

- normalize score to [0..100] instead of [0..85]
- change the default score to 8.2 to roughly keep existing behaviour
- take into account bit depth
- do not truncate to integer

Signed-off-by: Marton Balint <cus@passwd.hu>

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

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

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

If the user-supplied color in drawbox and drawgrid filters is non-opaque,
the box & grid painting overwrites the input's pixels (including alpha).
Users typically expect the alpha of the specified color to only act as a key
for compositing on top of the main input.

Added option allows users to select between replacement and composition.
Tested and documented.

Additionally:
* Mention that allrgb and allyuv do not support the "size" option.
* Separate examples into subsection.

Fixes ticket #6906.

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

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

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

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

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

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

The present value name for maximum thickness is 'max' which results in a
parse error of any thickness expression containing 'max(val1,val2)'.

Value renamed to 'fill'. Tested locally and documented.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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