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FLAC Checksum off
post Jun 24 2006, 11:01
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From: San Diego and VA
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I'm sorry if this has previously been asked, but I was unable to find anything pertaining to it.

I encoded a WAV into FLAC and calculated the MD5 for each and converted it back. Both WAV files had the same checksum, but when I did --show-md5sum it gave me a compltely different value, that value didnt match the FLAC or the WAV.

If the result of the --show-md5sum is supposed to be different what is that hash calculated from?

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post Jun 24 2006, 12:45
Post #2

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Member No.: 29404

http://flac.sourceforge.net/documentation.html says:
"Also included in the STREAMINFO block is the MD5 signature of the unencoded audio data."

--show-md5sum (.flac) != md5 (.wav)
--show-md5sum (.flac) == md5 (.raw)

.raw is audio data only.. no headers, no riff chunks..
(.raw = .wav - nonAudioData)

on my machine, flac.exe decodes to .raw via
flac -d --force-raw-format --sign=signed --endian=little <flac-file>
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