media-libs/openal

A cross-platform software implementation of the OpenAL 3D audio API.

Versions

Slot Version Repository Platforms
0 1.24.0 media ~amd64 arm? armv7? ~armv8 ~x86

Metadata

Homepage (
    https://github.com/kcat/openal-soft
    https://openal-soft.org
)
Summary A cross-platform software implementation of the OpenAL 3D audio API
Description This library is meant as a compatible update/replacement to the OpenAL Sample Implementation (the SI). The SI has been unmaintained for quite a while, and would require a lot of work to clean up. After attempting to work on the SI for a bit, I became overwhelmed with the amount of work needed, and I eventually decided to fork the old Windows version to attempt an accelerated ALSA version. The accelerated ALSA idea quickly fell through, but I ended up porting the software mixing code to be cross-platform, with multiple output backends: ALSA, OSS, DirectSound, and a .wav writer are currently implemented. OpenAL Soft supports mono, stereo, 4-channel, 5.1, 6.1, and 7.1 output, as opposed to the SI's 4-channel max (though it did have some provisions for 6 channel, this was not 5.1, and was seemingly a 'late' addition). OpenAL Soft does not support the Vorbis and MP3 extensions, however those were considered deprecated even in the SI. It does, though, support some of the newer extensions like AL_EXT_FLOAT32 and AL_EXT_MCFORMATS for multi-channel and floating-point formats, as well as ALC_EXT_EFX for environmental audio effects, and others.
Dependencies (
    (
        build:
        sys-kernel/linux-headers
        virtual/pkg-config
        build+run:
        alsa? (
            sys-sound/alsa-lib
        )
        jack? (
            media-sound/jack-audio-connection-kit
        )
        pipewire? (
            media/pipewire[>=0.3.23]
        )
        pulseaudio? (
            media-sound/pulseaudio
        )
        sdl? (
            media-libs/SDL:2
        )
        sndio? (
            sys-sound/sndio
        )
        test:
        dev-cpp/gtest
    )
    (
        build:
        sys-devel/cmake[>=3.24.0]
    )
)
Downloads https://github.com/kcat/openal-soft/archive/1.24.0.tar.gz -> openal-1.24.0.tar.gz
Licences LGPL-2

Choices

OPTIONS

alsa Support alsa audio output
jack Support jack audio output
pipewire Support pipewire audio output
pulseaudio Support pulseaudio audio output
sdl Adds support for Simple Direct Layer (media library)
sndio Support sndio audio output