I was told that by using PVR IPTV Simple + inputstream.ffmpegdirect it should be possible to ff and rw but I think your addon doesn't use inputstream.ffmpegdirect.
Also, I tried to compile you plugin on a Linux virtual x64 machine but I get this error:
Code
make[5]: *** [CMakeFiles/pvr.eon.dir/build.make:104: CMakeFiles/pvr.eon.dir/src/SHA256.cpp.o] Error 1
make[4]: *** [CMakeFiles/Makefile2:110: CMakeFiles/pvr.eon.dir/all] Error 2
make[3]: *** [Makefile:156: all] Error 2
make[2]: *** [CMakeFiles/pvr.eon.dir/build.make:88: pvr.eon-prefix/src/pvr.eon-stamp/pvr.eon-build] Error 2
make[1]: *** [CMakeFiles/Makefile2:132: CMakeFiles/pvr.eon.dir/all] Error 2
make: *** [Makefile:91: all] Error 2