[vorbis] Ogg Vorbis crossfading

[Ian Rutherford]

Thanks, I'll give it a whirl.

-----Original Message-----
From: owner-vorbis at xiph.org [mailto:owner-vorbis at xiph.org] On Behalf Of Stan
Seibert
Sent: Saturday, 29 November 2003 4:37 AM
To: vorbis at xiph.org
Subject: Re: [vorbis] Ogg Vorbis crossfading

On Fri, 2003-11-28 at 12:25, Ian Rutherford wrote:
> Does anyone know if cross-fading has been successfully implemented in
> Vorbis? I need to implement it in a project I?m working on and if it?s
> already been done, a finger pointing in the right direction would be
> awesome.

A vaguely related feature is provided by ov_crosslap().  Quoting from
the docs:

"ov_crosslap  overlaps  and blends the boundary at a transition between
two   seperate   streams  represented  by  seperate  [1]OggVorbis_File
structures.  For  lapping  transitions  due to seeking within a single
stream  represented  by a single [2]OggVorbis_File structure, consider
using  the  lapping  versions  of  the [3]vorbisfile seeking functions
instead."

(Until I pasted that into my email program, I never noticed that
"seperate" was misspelled...)

Anyway, crosslap does not do the sort of volume fading that a crossfade
implementation would do, but I thought I'd point out the feature in case
you find it related to your needs.


---
Stan Seibert

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