I am using rvio on Win7 x64 and I was wondering how I could access some of the options provided by ffmpeg and libx264, specifically the crf parameter. So far I can successfully pass parameters like level and profile and every other parameter that is documented when I run "rvio -formats", but the crf value doesnt seem to be among them (which isnt suprising since the -formats seems to show only the .mov specific parameters?)
so far my commandline is sometling like:
rvio image.tif -codec libx264 -outparams profile=144 -level=31 vcc:qmin=11 vcc:qmax=51 etc.
but there doesnt seem to be a parameter for the crf value. If i try the logical solution "vcc:crf=15" ffmpeg outputs "Could not match option: vcc:crf".
Is there a way to somehow pass parameters to ffmpeg or x264 directly that are not exposed in the rvio-formats documentation? The method described in this thread: https://tweaksoftware.zendesk.com/entries/464107-h264-codec-on-osx-not-working- doesnt seem to apply to ffmpeg/libx264.
On a side note: is there a way to use all codecs offered by ffmpeg or are only a selected few supported by rvio? The "image codecs" section doesn't list libx264 or mpeg4 although they run fine from within rvio . Then again the codecs prores, prores_aw or prores_ks are not available from within rvio while they run perfectly with a standalone installation of ffmpeg.