Re: [linux-minidisc] linux-minidisc Digest, Vol 43, Issue 18

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

On 01/13/2014 01:44 AM, Jurgen. wrote:
> I found this. Have you already seen it?

Yes, very old news. We were actually involved in the development
of this decoder. Michael did lots of the reverse engineering and
supported Maxim from ffmpeg with extra documentation.

> Atrac3+ decoder. It eventually comes into FFmpeg, but I did not hear
> back yet from a word of the FFmpeg guys.

Eh, it's been in ffmpeg for a while now, those guys probably ripped
it off ffmpeg and didn't credit them properly.

Here's the commit:

>
http://git.videolan.org/?p=ffmpeg.git;a=commit;h=2e1fb96af36348479e14aa85f445915ea09e70fa

It will be part of the next ffmpeg release. Jean-Baptiste of VideoLAN
couldn't tell me, however, when it will be part of the official
VLC releases.

> Sidenote: the latest version of vgmstream for foobar2000 is using this
> MaiAT3PlusDecoder already...

Thanks, but I don't use Windows ;). Anyway, it will be available in most
open source audio codec libraries very time soon, so it will be very
much operating-system-agnostic.

You might run into problems with foobar2000, however, since it probably
doesn't include the master key to decrypt encrypted ATRAC3+ .OMA
containers. Files transferred with QHiMDTransfer are not encrypted,
fortunately, but everything that you have previously backed up
with SonicStage is.

> So I'm going to try that because a VLC update will take a while I think :-)

Sure. But VLC will deliver the better overall experience in the end
unless foobar2000 has the universal .OMA decryptor included as well.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
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`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
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