[Libav-user] wav VS raw

Carl Eugen Hoyos cehoyos at ag.or.at
Wed Apr 9 21:31:33 CEST 2014

ReSearchIT Eng <researchiteng at ...> writes:

> > The files are not identical, the
> > wav header is 46 bytes in your file.

> Wow, so this means there is something between 
> header and data in my file.

No, it just means that you were wrong assuming 
the size of the wav header in your sample.

> I thought whatever comes after the 44 bytes it's 
> considered data, but it seems I was wrong.

Whatever comes after the data chunk start is data.
(search for "data" and the immediately following 
size of the chunk in the wav file.)

> I will give it a try with some other wav files 
> as well.

> Many thanks for help and for the tip with the 
> .sw extension which I think means "raw signed 
> word", correct?

I didn't know;-)

> Could not find it listed in the ffmpeg -h full

This does not list file extensions, there is 
currently no function to show them.

> Are there other such formats, including
> for flt, etc?

Only ub, al, ul

Carl Eugen

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