I used DirectShowSource as the script to open mp4 with AAC audio. VirtualDub can open it and show that both video and audio stream exist. My problems are:
- VirtualDub freezes when it tries to play the clip.
- The output clip has video but no audio.
If I work with an avi file with mp3 track, DirectShowSource works as expected.
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Thread: Avisynth problem with VirtualDub
Is the AAC audio more than 2 channels? Is the mp3 track? What I've experienced is when I'm working with 5.1 channels the display shows all channels of the audio, but won't play it. However if I change the script to limit to 2 channels, it plays fine. (Or as well as it ever plays in VDub. As noted by manono, it's not a good player.) The audio output from AviSynth is effectively uncompressed and I don't think VDub is equipped to handle more than 2 channels."Shut up Wesley!" -- Captain Jean-Luc Picard
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