libmediastreamer-dev 1:5.1.64+dfsg-3 (riscv64 binary) in ubuntu lunar

 Mediastreamer2 is a powerful and lightweight streaming engine
 specially designed for voice/video telephony applications.
 .
 This open source library is responsible for all receiving and
 sending of multimedia streams in Linphone, including voice/video
 capture, encoding, decoding, and rendering.
 .
 This package contains the development files for the development library.