Bug 259914

Summary:	media-libs/audiofile-0.2.6-r3 produces wrong wav headers
Product:	Gentoo Linux	Reporter:	Thomas <Thomas.Eschenbacher>
Component:	[OLD] Library	Assignee:	Gentoo Linux Gnome Desktop Team <gnome>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	sound
Priority:	High
Version:	unspecified
Hardware:	All
OS:	All
URL:	http://bugs.launchpad.net/ubuntu/+source/audiofile/+bug/327018
Whiteboard:
Package list:		Runtime testing required:	---

Description Thomas 2009-02-22 15:48:47 UTC

Libaudiofile in this version produces wrong length information in the data and RIFF chunk of wav files because it internally uses the data type "float" for length calculations, with loss of precision.

Reproducible: Always

Steps to Reproduce:
1. create a wav file with 77.777.777 frames, 8 bit/sample, stereo
2. check the length written in the RIFF and data chunk, it will be wrong





I already filed a bug report and a patch to ubuntu launchpad, see:

https://bugs.launchpad.net/ubuntu/+source/audiofile/+bug/327018

Comment 1 Gilles Dartiguelongue (RETIRED) gentoo-dev

2009-02-22 18:31:24 UTC

did you try 0.2.6-r4 ?

Comment 2 Thomas 2009-02-22 21:52:21 UTC

now yes, media-libs/audiofile-0.2.6-r4 behaves exactly the same.

Comment 3 Samuli Suominen (RETIRED) gentoo-dev

2009-05-13 18:52:32 UTC

http://launchpadlibrarian.net/22320508/audiofile-no-float.diff

Comment 4 Daniel Gryniewicz (RETIRED) gentoo-dev

2009-05-14 01:35:01 UTC

Won't that patch just fail if you tack more decimals on the end?  Or is there some format restriction that keeps that from happening?

Comment 5 Samuli Suominen (RETIRED) gentoo-dev

2010-04-28 16:05:42 UTC

try 0.2.7 for update

Comment 6 Thomas 2010-05-08 09:59:42 UTC

I tested with v0.2.7 and was not able to reproduce the bug with the size mentioned above.

I also tested several other chunk sizes that are not representable in a "float", 
like (2^24 - 1) and around, but everything worked fine.

From my point of view we could set this bug to "resolved".