Warning: no plugins found! about loudness-scanner HOT 6 OPEN

Are there any input plugins built at all? For example "libinput_sndfile.so" or "libinput_ffmpeg.so" should be built alongside the loudness binary if the needed binaries are found.

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There are no libinput_xxxx.so libraries being built.

I believe one of the dependencies is gmodule-2. On Ubuntu, I installed libgtk2.0-dev to get gmodule-2.

But still got no libinput_xxxx.so libraries.

Is there another dependency I need?

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Can you show me the output of the cmake command and of make input_ffmpeg?
The first one should look more or less like this:

-- speexdsp library dirs: /usr/local/lib
-- speexdsp cflags: 
-- speexdsp include dirs: /usr/local/include
-- speexdsp libraries: speexdsp
-- speexdsp ldflags: 
-- Could NOT find MPCDEC (missing:  MPCDEC_LIBRARY MPCDEC_INCLUDE_DIR) 
-- status          found / disabled --
-- queue.h:        yes     using system copy of queue.h
-- speexdsp:       yes     no 
-- glib-2.0:       yes     no 
-- gthread-2.0:    yes     no 
-- sndfile:        yes     no 
-- taglib:         yes     no 
-- mpg123:         yes     no 
-- mpcdec:         no      no 
-- gstreamer:      yes     no 
-- ffmpeg:         yes     no 
-- rsvg2:          yes     no 
-- gtk2:           yes     no 
-- qt4:            yes     no 
-- Configuring done
-- Generating done

The second one should build the ffmpeg input module.
I've committed some build fixes for the input modules needed on my machine. Maybe it works for you now?

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Thanks.

I've resolved the issue I believe.

At first, I was having difficulty getting loudness-scanner to build with the ebur128 submodule.

So I had to do some tinkering with the CMakeFiles.txt

As I was able to successfully build the standalone libebur128, I tried to get the loudness-scanner to link to the standalone libebur128 that was build. So I commented out the line: add_subdirectory(ebur128)

Commenting this line out apparently prevented the building of input plugins for some reason.

After some more tinkering with the CMAKE command arguments, I got the loudness-scanner project to build with the ebur128 submodule. Now the input plugins are built.

Questions:

1. How do I get loudness-scanner to link to the standalone libebur128 instead? If I build loudness-scanner with the ebur128 submodule, it will link to the library in the build directory. I copy loudness-scanner to a target bin directory. So I want loudness-scanner to link to libebur128.so from the target lib directory.

2. It appears loudness-scanner only works with s16le wav files using the ffmpeg plugin. Non-wav files or f32le wav files fail.

Thanks!

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I can't reproduce your issue with ffmpeg plugin.

$ ffprobe tonef32.wav
Input #0, wav, from '/Users/audionuma/Audiofiles/tonef32.wav':
  Duration: 00:00:10.00, bitrate: 2822 kb/s
    Stream #0:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, 2 channels, flt, 2822 kb/s
$ loudness scan --force-plugin=ffmpeg /Users/audionuma/Audiofiles/tonef32.wav 
  Loudness                                                                      
 -2.6 LUFS, tonef32.wav

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I was initially getting this same error on macOS. My solution was to add set(CMAKE_MACOSX_RPATH 1) to CMakeLists.txt, build the mac version of all the missing required libraries with brew, and then re-run cmake .. and make. Works fine now.

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