<br><br><div><span class="gmail_quote">2007/10/19, Josh Coalson <<a href="mailto:xflac@yahoo.com">xflac@yahoo.com</a>>:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
--- Harry Sack <<a href="mailto:tranzedude@gmail.com">tranzedude@gmail.com</a>> wrote:<br>> hi<br>><br>> here some questions about the md5 checksum:<br>><br>> - what happens when the md5 checksum of the decoded audio is
<br>> different<br>> of the internally stored checksum due to file corruption ? Will<br>> playing/decoding still be possible (with some error frames) or will<br>> playing /decoding be not possible at all (so all audio data is lost)?
<br><br>md5 does not affect decoding at all, it is a just a checksum to<br>tell you at the end if it matches the whole audio or not.</blockquote><div><br><br>thanks for the answer, but then there is wrong information on some sites that tell about flac :s.
<br>There is written the flac decoder doesn't decode the audio at all when the md5 checksum doesn't match.<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
> - what happens when the metadata blocks get corrupt? will the audio<br>> part still be decodable even when non-audio blocks are corrupt?<br><br>yes<br><br>> - since there is only a md5 checksum on the audio blocks itself, what
<br>> happens when some wav metadata gets corrupt and you want to decode<br>> that data? How can the decoder detect it's corrupt or not because<br>> there is no md5 checksum for this data?<br><br>depends on the corruption, some kinds are recoverable, some are not.
<br>read the format spec first and it should become clear.</blockquote><div><br><br>Why is there no md5 checksum on the WAV metadata? Because how can flac otherwise be called a 'lossless' codec when the metadata of the WAV file can't be guaranteed 100% identical to the original, when there is file corruption, because there is no md5 checksum on it?
<br><br>thx <br>Harry<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Josh<br><br><br>__________________________________________________
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