linuxaudio.org

Paul Davis:

quoted text
>

> The most common formats for "loops defined inside an audio file" have

> historically been non-WAV (or extensions to wav), such as REX, and

> proprietary.

>

> The WAV spec does include the concept of a playlist, consisting of

> cue

> points and lengths. By themselves, these don't really define "loops"

> in a

> way that is generally going to be clear to the user.

I don't know of any official specifications of it, but it's common to

have

a cue called "Loop start", and a cue called "Loop End".
>

quoted text
> libsndfile can definitely read these from the file, but i'm not sure

> what

> an app would do with them. providing a sample with a loop point(s)

> defined

> would be good.

Well, I didn't find any way to use libsndfile to get the cue points.

They are displayed using sndfile-info, but I don't think you can get

the numbers

via the libsndfile api without parsing the text output of the functions

libsndfile-info calls.
It's simple to implement without libsndfile though. Just steal the code

from radium. :-)
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