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From: Jan Knutar <jk@fornax.tk>
To: linux-kernel@vger.kernel.org
Subject: Re: Please send a reply to me....
Date: Tue, 25 Mar 2003 08:50:18 +0200
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Cc: "Senthil Kumar" <senthil_gowran@hotmail.com>
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On Tuesday 25 March 2003 06:34, Senthil Kumar wrote:
> i. e. From the mp3 file i extracted the data to be played alone to my
> local buffer leaving the Frame information of 32 bits.
[ ... ]
> Then through ioctl() function i wrote the channel, bitrate and
> Format. Then through write function i wrote the data captured in the
> local buffer to the dsp device /dev/dsp.
[...]
> Is any uncompression should be done for data and written.
> Is so how the uncompression should be done..

The kernel doesn't do mp3 decoding, and yes, you have to decode mp3 
first into PCM. Take a look at mpg123 or xmms for ideas (google is your 
friend).
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