librtmp-dev 2.4+20121230.gitdf6c518-1ubuntu0.1 (arm64 binary) in ubuntu trusty

 A small dumper for media content streamed over the RTMP protocol (like BBC's
 iPlayer high quality streams). Supplying an RTMP URL will result in a dumped
 flv file, which can be played/transcoded with standard tools.
 .
 This package contains the development libraries, header files needed by
 programs that want to compile with librtmp.