Inlcude AMR codec in the build

Packages describing “amr” as local USE flag

Package “amr” Flag Description
net-libs/pjproject Inlcude AMR codec in the build
media-sound/sox Enables Adaptive Multi-Rate Audio support
media-video/ffmpeg Enables Adaptive Multi-Rate Audio support
media-libs/avidemux-plugins Enable Adaptive Multi-Rate format support via media-libs/opencore-amr.

All packages providing a “amr” USE flag (4)