Hi,
I'm developing a flac decoder in an embedded environment. I have it fully up
and running but I am trying to optimise the performance vs. the power it takes
to decode the stream.
Using the reference decoder code with a few optimisations for the hw I'm on I
experience quite a difference in mips depending on the level.
For instance, on a 192kHz/24 bit file the difference is almost that it takes
twice as many mips on level 8 vs. level 1.
Unfortunately I can't tell our customer that they need to decode at a certain
level, BUT I want to minimize the frequency the processor is running on.
Since I have no problem reading a 441/16 from a memory stick and decode it on
40 MHz, but I require almost 240 MHz on a 192/24 file, I would like to
dynamically change the frequency depending on the file I'm about to decode.
Now, since you managed to plough through all this, I would really appreciate if
you could answer one simple question:
Is there any way I can read out the compression level from the encoding process
from the file?
Thanks in advance!
Hjalmar
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