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Topic: Breaking General AAC Decoders (Read 1998 times) previous topic - next topic
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Breaking General AAC Decoders

Does anyone know if there is a set of dodgy AAC encoded songs that cause an AAC decoder to break. From my inital experiment i have corrupted the fixed header and variable header of the AL05_48.aac test song for all the individual fields. The decoder i have works well in that it bombs out safely when i corrupt these fields, though on some occasions it plays when it maybe should not, and also reports errors that have no relation to the original header error that i created.

I am now about to start corrupting the raw data block, but this may take a while though. What i'm really interested in is a file that will cause or possibly cause the decoder to lock up (is this possible?). Does anyone know of any files or has knowledge of ways of breaking (locking up) a decoder by corrupting the raw data block?