readme

mp2解压程序

DSP based MPEG Audio Player.
Copyrights (c) 1994,1995,1996 by Michael Hipp
email: [e-mail]
--------------------------------------------------------

THERE IS NO WARRANTY!!!

This programm MAY damage your hardware, anything else or
even your hearing due to a software bug or
for other reason. 

USE THIS CODE ON YOUR OWN RISK!!!!!!!!!

The code is _only_ for private use. Ask me if you wanna
use the code in a commercial environment!
There is also no commercial distribution allowed.
This includes the case, that you give someone this software
as an 'free add on' to a commercial product.

Copy of the code is allowed, if you copy the whole
package (including this README).
It's not allowed to take a fee or other kind
of payment for this service (or for the code).

Description:
------------
This a MPEG Audio Layer 2 Player for PSS/ESC614 Soundcards 
to run under Linux.  (eg for Orchid SoundWave 32).
The chipset is based on an Analog Devices ADSP 2115 
DSP processor with 20 MIPS.

Features: 
---------
Layer 2 is possible in realtime. The driver uses IO-Port
based data transfer. (No DMA, because of a bug
in version 1 of the Echo PSS chipset)

how to use:
-----------

Build the module:
	make

Load the module e.g: (possible irqs are: 10,11,12,5,7,9)
	insmod dsp.o irq=10

Create the device: (inoffical MAJOR!)
	mknod /dev/mp2 c 62 0

Play a Layer 2 file:
	cat file.mp2 > /dev/mp2


Known bugs:
-----------
Not all modes tested .. 
I heared artifacts playing a few special layer 2 streams.