[vorbis] Various Ogg Vorbis largefile notes and/or patches

Stan Seibert volsung at mailsnare.net
Mon May 24 07:54:14 PDT 2004



Michael Smith wrote:

>On Monday 24 May 2004 16:41, Barry Bouwsma wrote:
>  
>
>>The problems I've noted, to be addressed in following messages (if
>>this one makes it through), include:
>>*)  WAV files (that store the alleged file size in a 32-bit header
>>    field) can easily be many gigs in size, but oggenc believes the
>>    header value rather than the actual file size;
>>    
>>
>
>It does that for good reasons, though... When it didn't (in an older version) 
>we got bug reports because it was incorrectly using data that wasn't part of 
>the audio. So we can't just blindly read to the end of the file. You can 
>always use raw files and pass the rest of the info on the command line.
>
>Is there actually some way to get the real data size for 'big' WAV files? Or 
>is there a magic constant for the data size that is used to mean 'ignore 
>this, just read to the end of the file'? If there is, I'd be happy to look at 
>a patch for that. 
>  
>

Indeed, I would also like to know if such a magic constant exists.  
There is an AUDIO_UNKNOWN_SIZE value for the AU format, but I was never 
able to find one for WAV files.

Is there a PCM format that uses 64 bit length values at all?


---
Stan Seibert

--- >8 ----
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