[Flac-dev] Is there any way to tell what level the flac was encoded at?

[hjalmar nilsson]

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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