[Python-Dev] Expanding max chunk size to 4GB. (original) (raw)

Guido van Rossum gvanrossum at gmail.com
Wed Jul 6 21:17:22 CEST 2005

Looks ok to me, but have you tested this with other software that reads/writes wave files?

You seem to be speculating about the format where you should be reading the reference documentation for this file format (alas, I can't help you find it -- you can Google for it as well as I can :).

Also, patches, are best submitted to SourceForge. Read python.org/dev/.

On 7/6/05, Mark Rages <markrages at gmail.com> wrote:

The RIFF chunk size (used by the Python wave library) is 2GB, because the length is read as a signed 32-bit integer.

The attached patch to chunk.py raises the limit to 4GB by using a signed integer. Is this correct? Is there a more general solution to 32-bit addressing limitation in wave files? Multiple chunks? Set the length field to zero and let software assume we only have one chunk? Regards, Mark Rages markrages at gmail.com -- You think that it is a secret, but it never has been one. - fortune cookie

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