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Subject: Re: Gapless Playback Engine

Re: Gapless Playback Engine

From: Joseph Jones <>
Date: Fri, 22 Oct 2004 00:08:42 +0100

The Archos' hardware decoder is pretty much a no-go area. It can run
micro code or some-such, but we don't have the specs required to know
how to do it.

As for the iRiver, I guess only time will tell.

When I say "we" I mean the developers, not me ;)


On Thu, 21 Oct 2004 22:00:46 +0200, Spam Me <> wrote:
> I have a great interest in the development of a playback-engine with
> support for multiple codecs. I'm an iRiver owner and don't know much
> about Archos hardware, but my impression is that a major difference
> between the Archos and the iRiver firmware, is the fact that iRiver
> don't have any hardware codec-decoder chip, but needs to do all the
> decoding on its Motorola MFC5249 CPU.
> To me it seems natural to use this "opportunity" to make a
> playback-engine for iRiver which support both gapless playback and
> maybe even crossfading capabilities. There probably is a lot of
> problems in designing such an engine which will have to be considered
> and I think the Rockbox project will benefit from analyzing the
> gapless playback problem at an early stage before making functional
> playback-engine for each of the different codecs - this might avoid
> problems which demand a re-design and re-programming of the
> playback-engine later.
> What are the possibility for implementing other codecs than mp3 on the
> Archos players and should the Archos hardware be kept in mind when
> designing this playback-engine which is compatible with the iRiver
> hardware?
> The codecs which I find interesting to investigate is:
> MP3
> OGG (Ogg Vorbis)
> FLAC (Free Lossless Audio Codec)
> MPC (MusePack - a fixed-point decoder has just been released)
> I really like some input on this issue and if someone with
> developer-skills have free hands, then please feel free to contact me
> - designing a gapless playback-engine is not a one-man project :)
> _______________________________________________
Received on 2004-10-22

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