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List:       rockbox
Subject:    RE: LOW_WATER and high bitrates
From:       Stuart Tedford <stuart.tedford () piresearch ! co ! uk>
Date:       2002-07-31 16:45:17
Message-ID: A1E75FA36E90D31185B200805F65100701363227 () raven ! pigroup ! co ! uk
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It sounds like there is some other problem causing your skips.  I did some
testing with a dynamic low water mark and I found that a low water mark of
0x32000 was enough for 320kbit files.  I haven't tried this with the latest
builds though as this was based on a 2 week old build.  I don't have my
results with me now but I think I found that a 320kbit file will require
more data after about 53 seconds of playing. 

Stu. 

> -----Original Message-----
> From: Alex Gitelman [mailto:alex@fg-soup.com]
> Sent: 31 July 2002 17:06
> To: rockbox@cool.haxx.se
> Subject: LOW_WATER and high bitrates
> 
> 
> As I mentioned before I was getting skips on 320Kbit
> tracks. It got especially bad after last change to mpeg.c,
> so I went into mpeg.c and for experiment changed MPEG_LOW_WATER
> from 0x40000 to 0x160000 (0x80000 improved situation but did fix
> the problem completely). After that it seems to play OK. It takes a
> while to start playing though and probably is not easy on HD and
> battery. So probably other solution should be found.
> My wild guess is that for high bitrates disk reading just does not
> have enough speed to be faster then playing.
> Best...
> Alex
> 

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