Ah yeah ok, now it's more clear
Btw about what your reported, yes we did some tests and in fact by selecting the "COPY" the stream is not re-encoded and this means that if somebody selects it on the video or audio activity, then the video or audio stream remain the same in the output file. Of course this also means that if you select "COPY" in both audio or video activities everything else should be disabled because the options selected would not have effect. So this is finally the answer to your question:
you can just avoid the re-encode of audio/video streams just selecting the COPY option in the corresponding activity. @sterval, I have to be honest, this was another great suggestion, you have the possibility to appear two times in the changelog of next release
Of course we accepted the second report in the bug tracker. About the other thing, the communication, of course we will continue to use this forum because, as you wrote, can be useful for other users, and of course this is the main utility of this forum. But I prefer to exchange informations strictly related to the builds we will make you test on the mail, just for a matter of convenience.
Ok said it, we are implementing everything, the application is still in alpha stage but it is much stable now. From 2-3 days we will post again here and we will make you see how to get the development builds to test, we will publish also the development version of the codec because it is needed to update it too. Do you use a common ARMv7 Neon CPU right?