| Flag |
Description |
14.7.0.9 |
14.6.0.4-r1 |
14.4.5.1 |
14.4.4.1-r1 |
14.4.2_p20210509-r3 |
| alsa |
Add support for media-libs/alsa-lib (Advanced Linux Sound Architecture)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| amr |
Enables Adaptive Multi-Rate Audio support
|
✓ |
✓ |
✓ |
✓ |
✓ |
| ao |
Use libao audio output library for sound playback
|
✓ |
✓ |
✓ |
✓ |
✓ |
| dolbyb |
Support Dolby B like noise reduction with <pkg>media-libs/libdolbyb</pkg>
|
✓ |
✗ |
✗ |
✗ |
✗ |
| encode |
Add support for encoding of audio or video files
|
✓ |
✓ |
✓ |
✓ |
✓ |
| ffmpeg |
Enable ffmpeg/libav-based audio/video codec support
|
⊕ |
⊕ |
✗ |
✗ |
✗ |
| fftw |
Use FFTW library for computing Fourier transforms
|
✓ |
✓ |
✗ |
✗ |
✗ |
| flac |
Add support for FLAC: Free Lossless Audio Codec
|
✓ |
✓ |
✓ |
✓ |
✓ |
| id3tag |
Enables ID3 tagging with id3tag library
|
✓ |
✓ |
✓ |
✓ |
✓ |
| ladspa |
Enable the ability to support ladspa plugins
|
✓ |
✓ |
✓ |
✓ |
✓ |
| loudness |
Support loudness normalisation according to the EBU R128 standard using <pkg>media-libs/libebur128</pkg>
|
✓ |
✗ |
✗ |
✗ |
✗ |
| mad |
Add support for mad (high-quality mp3 decoder library and cli frontend)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| ogg |
Add support for the Ogg container format (commonly used by Vorbis, Theora and flac)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| openmp |
Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE="openmp"
|
✓ |
✓ |
✓ |
✓ |
✓ |
| opus |
Enable Opus audio codec support
|
✓ |
✓ |
✓ |
✓ |
✓ |
| oss |
Add support for OSS (Open Sound System)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| png |
Add support for libpng (PNG images)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| pulseaudio |
Add sound server support via media-libs/libpulse (may be PulseAudio or PipeWire)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| sndfile |
Add support for libsndfile
|
✓ |
✓ |
✓ |
✓ |
✓ |
| sndio |
Enable support for sndio
|
✓ |
✓ |
✓ |
✓ |
✓ |
| speexdsp |
Support for automatic gain control, denoise and dereverb with <pkg>media-libs/speexdsp</pkg>
|
✓ |
✓ |
✗ |
✗ |
✗ |
| twolame |
Enables twolame support (MPEG Audio Layer 2 encoder)
|
✓ |
✓ |
✓ |
✓ |
✓ |
| wavpack |
Add support for wavpack audio compression tools
|
✓ |
✓ |
✓ |
✓ |
✓ |