[FFmpeg-user] Error configuring filters. (AudioBars)

[Moritz Barsnick]

On Mon, Jun 12, 2017 at 04:48:00 -0700, Manmathan wrote:
> Actually downloaded the ffmpeg,not the filters. Could you please guide *how
> to install the filter*. I am on Win7 and have git installed.

If you downloaded the Windows version of ffmpeg here:
https://ffmpeg.zeranoe.com/builds/
it should have the showvolume filter:

c:\Users\myuserid\Downloads>ffmpeg-20170605-4705edb-win64-static\bin\ffmpeg.exe -filters | find "showvol"
ffmpeg version N-86383-g4705edb Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 7.1.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 63.100 / 55. 63.100
  libavcodec     57. 96.101 / 57. 96.101
  libavformat    57. 72.101 / 57. 72.101
  libavdevice    57.  7.100 / 57.  7.100
  libavfilter     6. 91.100 /  6. 91.100
  libswscale      4.  7.101 /  4.  7.101
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100
 ... showvolume        A->V       Convert input audio volume to video output.

c:\Users\myuserid\Downloads>

By the way, I get:
[showvolume @ 0000000004d4cae0] Value 255.000000 for parameter 'f' out of range [0.001 - 1]

Documentation says:
‘f’

    Set fade, allowed range is [0.001, 1]. Default is 0.95.

What are you trying to achieve with 255?

Moritz