[Vorbis] Wrong WAV AudioFormat

[Erik de Castro Lopo]

Richi Plana wrote:

> Hi,
> 
> I am using vorbis-tools 1.4.0 on Fedora 14 to convert Ogg Vorbis files
> to MS WAV format. It seems that ogg123 is encoding the wrong AudioFormat
> value. For Uncompressed PCM, the AudioFormat should be 1 but for some
> reason, it is being encoded in the WAV file as -1.

Not necessarily. A format of 0xffff specifies the WAVE_FORMAT_EXTENSIBLE
file type. Assuming the file isn't malformed, any program whcih does
accept WAVE_FORMAT_EXTENSIBLE files is broken.


> This used to work on some prior version of either Fedora or
> vorbis-tools. I thought I'd ask in the email list in case it's a known
> matter.

May I suggest you look at libsndfile:

    http://www.mega-nerd.com/libsndfile/

which includes two programs:

    sndfile-info    - Prints out information about files.

    sndfile-convert - Converts between file formats including Ogg
                      and WAV.


If you use sndfile-info on the file produced by off123 then it
will tell you if the file is malformed or now.

sndfile-convert will convert to a standard old format WAV file.

Erik
-- 
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Erik de Castro Lopo
http://www.mega-nerd.com/