AAC Audio and VideoFileReader compatibility
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Hello!
I need to analyse the frames of a video along with the audio of the said frames. VideoFileReader's `step' function has worked nicely but when I try to use it with an mp4 file with AAC-encoded audio it gives weird results (the audio frames are 6 columns wide and don't really seem to represent any audio). If I convert the video to WMV things are good. If I use `audioread' the AAC-encoded audio is read fine.
Is there a way to make VideoFileReader work with AAC, and if not, what is the easiest way to analyse audio and video frame-by-frame? Converting the video each time would be highly impractical for me.
Many Thanks,
Joachim
8 个评论
Walter Roberson
2013-3-30
Hmmm... When I look at VideoFileReader it is not clear that it supports AAC audio on any system. It does support H.264 video for MPEG-4 but that is a video standard, not an audio standard, and AAC is not listed under audio for any platform.
I am not sure which tool you could use to look at the audio channel information. Possibly Windows Explorer file properties might be able to tell you, or possibly QuickTime.
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