[Flac] Is FLAC hardware independent?

[Nicholas Wilson]

Dear Fernando,

The flac codec is not independent of anything—the format doesn't
specify what the output file must be, just what it could be. The
encoder is free to pick better or worse interpolations as long as it
stores the residuals and outputs it all in a properly formatted
container. If you run the same encoder ported to different
architectures, then the same software will output the same encoded
file, but the crucial thing is that on any architecture, with any
conforming implementation, the audio will decode to exactly match the
original. The intervening stages are uniquely determined, but the
whole process is certainly independent of everything (except software
or hardware bugs!).

Nicholas

-----
Nicholas Wilson: nicholas at nicholaswilson.me.uk (ncw33)
Site and blog: www.nicholaswilson.me.uk
Peterhouse, CB2 1RD • 86 Heath Road, GU31 4EL



2011/5/17 Fernando Alberto Marengo Rodriguez <fmarengorodriguez at yahoo.com.ar>:
> Dear list,
>> Which "output file" are you referring to?  Also, your question is
>> incompletely specified, because you do not qualify whether the input is the
>> same when you expect the output to be the same.
> My question is the following: For any encoding option (e.g. -5, default),
> does the flac encoder produce the same byte-for-byte output regardless of
> the CPU?
>
> Regards,
> Fernando
> PS: Here is the answer of David Bryant, the developer of WavPack: "The
> WavPack codec is hardware independent; the standard "C" encoder will produce
> the same byte-for-byte output regardless of the CPU it is running on
> (assuming a properly working C compiler, of course)."
>
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