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

2011-03-23 Thread Ivailo Karamanolev
As many people have pointed out, storing compression level is generally meaningless, as even the reference encoder can be configured to not be on any predefined compression level. I see two approaches for your case: 1. Monitor the CPU usage and adjust the frequency. The possible problems with this

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

2011-03-23 Thread Pierre-Yves Thoulon
I would also add that the "level" is only relevant to the reference encoder, as it is an alias to quickly set a number of parameters. Other encoders might make different choices. Also, I haven't looked in details at how the encoder works, but I think it is based on heuristics to decide which is the

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

2011-03-23 Thread Brian Willoughby
Hjalmar, I recall that many hardware decoders have a limit on the level that they can handle. At the very least, hardware encoders may only support a subset of the compression levels. As for the decoders, I cannot remember specifically whether they are all capable of decoding all compres

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

2011-03-23 Thread 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