Multithreading
Unlike VirtualDub, in Video Enhancer all filters, coders and decoders work simultaneously in separate threads. For example, if you process your video with two filters, then at the time coder compresses the first frame second filter is already processing second frame, first filter is processing third frame and decoder decompresses fourth frame. Simple test with processing DV video with 3 filters and compressing it with XviD showed 1.9 times higher speed than VirtualDub on Dual Core AMD Opteron. Just check "Use multithreading" box to optimize parallel processing:

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