[vorbis] An Analysis of the c't Codec Test

James Snook james.snook at gmx.net
Tue Oct 1 16:32:12 PDT 2002



This is from the Cdex guy:
"CDex 1.50 beta 7 is shipped with the latest Vorbis encoder (if you
scroll through the encoders, you'll see something like: Ogg Vorbis DLL
Encoder (Xiph.org libvorbis 20020717), which is the release date of Ogg
Vorbis 1.0). CDex 1.40 is shipped with the older RC3 ogg vorbis encoder"

And vi tells me my music is:
"Cvorbis^]^@^@^@Xiph.Org libVorbis I 20020717"

So I am using 1.0, I alsi use 1.0 in J River Media Jukebox now too, same
results so it probably is not down to compile time errors...

<p><p>-----Original Message-----
From: owner-vorbis at xiph.org [mailto:owner-vorbis at xiph.org] On Behalf Of
Greg Wooledge
Sent: 02 October 2002 01:14
To: vorbis at xiph.org
Subject: Re: [vorbis] An Analysis of the c't Codec Test

<p>James Snook (james.snook at gmx.net) wrote:

> here) and used ogg Vorbis 1.0, I had to email the author to confirm 
> that, but it was 1.0,

If you examine the raw .ogg file with a text editor, or hex editor, or
any other sufficiently low-level tool, you will find a version string
put there by the encoder libraries.  Vorbis 1.0 files have a string like
this:

  Xiph.Org libVorbis I 20020717

Vorbis RC3 looks like this:

  Xiphophorus libVorbis I 20011231

And all earlier versions have the same format as RC3, but with an older
timestamp in the last 8 bytes.  (Some CVS snapshots of pre-1.0 Vorbis
will have the older "Xiphphorus" format, and some have the newer
"Xiph.Org" one.  The actual switchover occurred a week or two before 1.0
was released.)


-- 
Greg Wooledge                  |   "Truth belongs to everybody."
greg at wooledge.org              |    - The Red Hot Chili Peppers
http://wooledge.org/~greg/     |

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