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Detecting codec in a stream, aac adts vs mp3
stigc
post Oct 7 2012, 12:46
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How does e.g. VLC detects the codec when opening a http stream?

Both AAC and MP3 has a very short sync mark which often appears in other streams.

http://www.flickr.com/photos/52807817@N00/4423485655/
http://www.mp3-tech.org/programmer/frame_header.html

This post has been edited by stigc: Oct 7 2012, 12:53
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Posts in this topic
- stigc   Detecting codec in a stream   Oct 7 2012, 12:46
- - stigc   I guess VLC parses the frame length number and see...   Oct 7 2012, 13:07
- - benski   The first four bytes of an ADTS AAC frame header l...   Oct 7 2012, 18:38

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