MP4 related CLI software

Hello, I'm currently planning on writing a own GUI (cross platform) for creating MP4's that I can use on my PS3. I know there are some nice apps out there atm, but I'm just a dickhead... Because I'm not a really hardcore video converter, I'll have to learn a lot while I'm working on this "project". In short I would plan to encode video's following these steps: - Demuxing - Encoding audio / video seperatly - Muxing I'm looking for CLI programs or DLL's that would help me doing this job. Currently I listed these: - Audio encoders: --- AACenc --- Faac --- Fastenc - Audio decoders: --- FAAD - Video encoders: --- x264 (helped by AviSynth and the right codecs to read source files) - Muxers: --- MP4Box Currently I didn't figure out which demuxer to use, so I'm still looking for one. I'm open to suggestions, so please fire all possible programs/ combinations you know. Kind regards, l:x PS: Of course, this whole app will be Open-Source...

have you taken a look at this entire forum?

You have no reason to demux, just serve both audio and video using avisynth.