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Altera_Forum's avatar
Altera_Forum
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15 years ago

Mp3 decoder too slow on NiosII

Hi,all I'm now designing a mp3 player for DE2 board, which use libmad for mp3 decoding. But currently, the speed is too slow for real time playing. The core is NiosII fastest core,i cache=8kb, ...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Have you enabled -O2 or -O3 ?

If you rip out all calls into libc, can you fit the whole code into internal memory?

(It might be that the resident set fits in the cache though.)