Framerate range in abitscope filter not set correctly.

[Gyan]

ffmpeg -f lavfi -i sine -lavfi abitscope=rate=24 -f null - 2> log.txt

ffmpeg version N-84673-ga044f8df6a Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 6.3.0 (Rev2, Built by MSYS2 project)
  configuration:  --enable-avisynth --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-cuda --enable-cuvid --enable-schannel --enable-decklink --enable-fontconfig --enable-frei0r --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libmfx --enable-libmodplug --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libwavpack --enable-libwebp --enable-libxavs --enable-libxvid --enable-libzimg --enable-openssl --enable-libsnappy --enable-gpl --enable-opencl --enable-opengl --enable-libcdio --enable-libfdk-aac --enable-libkvazaar --enable-librubberband --enable-libssh --enable-libtesseract --enable-libzvbi --enable-chromaprint --enable-libopenh264 --enable-libopenmpt --enable-netcdf --enable-sdl2 --enable-libzmq --extra-cflags=-DLIBTWOLAME_STATIC --extra-cflags=-fopenmp --extra-libs=-lgomp --extra-libs=-lstdc++ --extra-cflags=-DLIBSSH_STATIC --extra-ldflags='-Wl,--allow-multiple-definition' --extra-cflags=-DCACA_STATIC --extra-cflags=-DMODPLUG_STATIC --extra-cflags=-DCHROMAPRINT_NODLL --extra-libs=-lstdc++ --extra-cflags=-DZMQ_STATIC --disable-w32threads --extra-cflags=-DPTW32_STATIC_LIB --extra-libs=-lpthread --extra-libs=-lwsock32 --extra-cflags=-DKVZ_STATIC_LIB --enable-version3 --enable-nonfree --enable-filter=frei0r --disable-debug
  libavutil      55. 51.100 / 55. 51.100
  libavcodec     57. 86.103 / 57. 86.103
  libavformat    57. 67.100 / 57. 67.100
  libavdevice    57.  3.101 / 57.  3.101
  libavfilter     6. 78.100 /  6. 78.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
[opencl @ 0000000142f69140] Same kernel code has been registered
    Last message repeated 1 times
Input #0, lavfi, from 'sine':
  Duration: N/A, start: 0.000000, bitrate: 705 kb/s
    Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
[abitscope @ 00000000035a63e0] Value 24.000000 for parameter 'rate' out of range [0 - 0]
    Last message repeated 1 times
[abitscope @ 00000000035a63e0] Error setting option rate to value 24.
[Parsed_abitscope_0 @ 00000000005ae8c0] Error applying options to the filter.
[AVFilterGraph @ 00000000005a98c0] Error initializing filter 'abitscope' with args 'rate=24'
Error initializing complex filters.
Result too large

Patch was sent to ffmpeg-devel on 23-03-2017. See ​http://www.ffmpeg.org/pipermail/ffmpeg-devel/2017-March/209031.html

[Gyan]

Patch was applied.

[llogan]

Fixed in 2104e3383fd1e9340c693451d9c7abb6501683ac.