[linux-audio-dev] Sound file format detection?

[Erik de Castro Lopo]

Mario Lang wrote:

> Hi.
> 
> My little time-compressing audio player yatm currently supports 3 different
> audio formats, ogg and speex via the xiph libraries, and mpeg via libmad.
> I currently just blindly try to launch the decoder for either ogg, speex or
> mp3 in series.  SO if the first fails, I try the second, and so on. Which
> kinda works but is a bit ugly.  I'd like to add flac support at some point,
> which would make this even more ugly.
> Additionally, libsndfile support wouldnt be that bad either, so, I am
> wondering, is there a reliable way to detect a audio streams file
> format just given some bits of the header?

For the vast majority of file formats yes.

>  So that I could set the
> appropriate decoder algorithm based on that analysis?  Or is
> there actually a library one step higher level than libsndfile which
> does generic audioformat to PCM?

Isn't that what libsndfile does?

BTW, the latest release of libsndfile supports FLAC via the same API 
as all the other formats.

Erik
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