>
> On 1 Mar 2023, at 11:53, Bouke / Videotoolshed
> wrote:
>
> Hi,
> Trying to get a visualisation of my levels during record / stream.
> This works fine for file based material:
>
> ffplay -f lavfi -i
> "amovie=/Users/bouke/Downloads/test.wav,ebur128=video=1:meter=18:target=-16
> [out0][out1]"
>
> But I would like to have a live source (I’m on Mac, AVfoundation I guess.)
Tried the following:
ffplay -f lavfi -i
"amovie='\:2':f=avfoundation,ebur128=video=1:meter=18:target=-16 [out0][out1]”
Closer, but still no cigar:
It does not throw an error, but nothing is shown, as if input is not fed to the
ebur128 filter
ffplay version git-2021-03-31-b3e9a84 Copyright (c) 2003-2021 the FFmpeg
developers
built with Apple clang version 12.0.0 (clang-1200.0.32.29)
configuration: --enable-videotoolbox --enable-nonfree --enable-gpl
--enable-lv2 --enable-openssl --enable-libsvtav1 --enable-libx264
--enable-libx265 --enable-libvpx --enable-libxvid --enable-libvidstab
--enable-libaom --enable-libopencore_amrnb --enable-libopencore_amrwb
--enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libtheora
--enable-libfdk-aac --enable-libwebp --enable-libsrt --disable-debug
--disable-doc --disable-shared --enable-pthreads --enable-static --enable-small
--enable-version3 --enable-libfreetype --enable-libfontconfig --enable-decklink
--extra-cflags='-I/Users/bouke/ffmpeg-build-script/workspace/include
-I/Users/bouke/ffmpeg-build-script/include' --extra-ldexeflags=
--extra-ldflags='-L/Users/bouke/ffmpeg-build-script/workspace/lib
-L/Users/bouke/ffmpeg-build-script/include' --extra-libs='-ldl -lpthread -lm
-lz' --pkgconfigdir=/Users/bouke/ffmpeg-build-script/workspace/lib/pkgconfig
--pkg-config-flags=--static --prefix=/Users/bouke/ffmpeg-build-script/workspace
libavutil 56. 63.101 / 56. 63.101
libavcodec 58.117.101 / 58.117.101
libavformat58. 65.101 / 58. 65.101
libavdevice58. 11.103 / 58. 11.103
libavfilter 7. 96.100 / 7. 96.100
libswscale 5. 8.100 / 5. 8.100
libswresample 3. 8.100 / 3. 8.100
libpostproc55. 8.100 / 55. 8.100
nan: 0.000 fd= 0 aq=0KB vq=0KB sq=0B f=0/0
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