exaile / moodbar

Audio timeline visualization

Exaile

Exaile is a music player with a simple interface and powerful music management capabilities. Features include automatic fetching of album art, lyrics fetching, streaming internet radio, tabbed playlists, smart playlists with extensive filtering/search capabilities, and much more.

Exaile is written using Python and GTK+ and is easily extensible via plugins. There are over 50 plugins distributed with Exaile that include advanced track tagging, last.fm scrobbling, support for portable media players, podcasts, internet radio such as icecast and Soma.FM, ReplayGain, output via a secondary output device (great for DJs!), and much more.

For more information see https://www.exaile.org/

moodbar's Issues

Describe Moodbar

The readme currently points to my personal blog post with Exaile-specific info (some of it outdated) and a dead link to the demo page.

What I want to do:

• Add short description of Moodbar and a screenshot or two to the readme.
• Add more detailed description, e.g. from the "What do the colours mean?" section of my blog post, to the wiki.
• Figure out what to do with the demo. It uses audio elements and some JavaScript for playback control, so the wiki isn't going to cut it. GitHub Pages is a possibility, but it seems like a lot of work for one page….

How to: Deployment

This is not an issue, but a question:

Do you want to get this code deployed downstream? If yes, then I'd like to contact some downstream maintainers of the moodbar package and ask them to include this new version instead of the GStreamer 0.10-based version.

• Fedora
• Debian (only in oldstable, but maybe the maintainer wants to include it into testing)
• Launchpad
• Release-Monitoring upstream tracker

Compilation instructions

Meson gives oblique error messages when compiling, for example:

Meson encountered an error in file meson.build, line 14, column 0:
Native dependency 'gstreamer-audio-1.0' not found

For Debian and Ubuntu, there is no "gstreamer-audio-1.0", so it is hard to guess what Meson wants. (It turns out to be gstreamer-plugins-base1.0-dev). Perhaps it would be good to mention this error message and more explicitly state that the development version of the plugins are needed for building in the README.md.

It also wouldn't be bad if the prerequisites section included an example. I believe you only need this one line to install all prerequisites on Debian and Ubuntu:

apt install gstreamer-plugins-base1.0-dev fftw3-dev meson pkgconf

OSX Runtime error: Mutex lock failed

On OSX during runtime, error shows:

libc++abi.dylib: terminating with uncaught exception of type std::__1::system_error: mutex lock failed: Invalid argument

So I've traced the error and found the code:
in gstfastspecrum.cpp at line 139:

GstFastSpectrumClass* klass = reinterpret_cast<GstFastSpectrumClass*>(
      G_OBJECT_GET_CLASS(spectrum));
  {
    // Debug: mutex lock failed - trace
    std::lock_guard<decltype(klass->fftw_lock)> l(klass->fftw_lock);  // <= This line!

    spectrum->plan = fftw_plan_dft_r2c_1d(
        nfft,
        spectrum->fft_input,
        spectrum->fft_output,
        FFTW_ESTIMATE);
  }

After i removed this line: std::lock_guard<decltype(klass->fftw_lock)> l(klass->fftw_lock);, moodbar successfully produced the data in output file.

Wood & O'Keefe pdf link is dead

Instead of linking to Amarok's 404 page, try the PDF here:
https://scholar.google.com/scholar?oi=bibs&cluster=1548353732052211254&btnI=1&hl=en

Sort out the installation step

Currently we just need to install one file but I'd still prefer to use the standard Meson way for doing it, in case in the future we want to add a manpage or whatnot.

Also, add instructions to the readme for setting prefix & destdir, to help package maintainers who are not familiar with Meson.

Check why the output doesn't perfectly match Clementine's

The colors seem slightly different?

There is still more files not found

../gst/moodbar/gstfastspectrum.h:36:10: fatal error: 'gst/audio/gstaudiofilter.h' file not found
#include <gst/audio/gstaudiofilter.h>

Originally posted by @lupino22 in #6 (comment)

Meson encountered an error : Unknown method "set_quoted" in object.

When trying to build this code
on
Ubuntu 16.04.2

I get the following error:
user@hostname:~/programs/moodbar$ meson --buildtype=release build/
The Meson build system
Version: 0.29.0
Source dir: /home/user/programs/moodbar
Build dir: /home/user/programs/moodbar/build
Build type: native build
Build machine cpu family: x86_64
Build machine cpu: x86_64
Project name: moodbar
Native cpp compiler: c++ (gcc 5.4.0-6ubuntu1)

Meson encountered an error in file meson.build, line 8, column 5:
Unknown method "set_quoted" in object.

[Regression 1.0 to 1.1] Tests fail on some architectures (ppc64le, aarch64, 390x)

Steps to reproduce:

1. Build both moodbar 1.0 and 1.1 for some architectures

What happens:
With moodbar 1.0, the meson test is successful for all architectures. With moodbar 1.1, the test fails on ppc64le, aarch64, 390x.

What should happen:
Run tests successfully on all platforms.

Additional information:
Fedora package build

• moodbar 1.1: https://koji.fedoraproject.org/koji/taskinfo?taskID=34490175
• moodbar 1.0: https://koji.fedoraproject.org/koji/taskinfo?taskID=34490248

Ninja error "'gst/app/gstappsink.h' file not found"

After building with meson i got error message:

1 error generated.
[4/7] Compiling C++ object 'moodbar@exe/moodbar_exe.cpp.o'.
FAILED: moodbar@exe/moodbar_exe.cpp.o 
...
...

./src/moodbar/moodbarpipeline.h:22:10: fatal error: 'gst/app/gstappsink.h' file not found
#include <gst/app/gstappsink.h>

i'm running on macos system

Change number of segments?

Infos on wiki state 1000 slices are generated, but I can't seem to find a way to alter it the source.