// The MIT License

 

 // Copyright (c) 2009 Massachusetts Institute of Technology

 

 // Permission is hereby granted, free of charge, to any person obtaining a copy

 // of this software and associated documentation files (the "Software"), to deal

 // in the Software without restriction, including without limitation the rights

 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 // copies of the Software, and to permit persons to whom the Software is

 // furnished to do so, subject to the following conditions:

 

 // The above copyright notice and this permission notice shall be included in

 // all copies or substantial portions of the Software.

 

 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

 // THE SOFTWARE.

 

 // Author: Kermin Fleming kfleming@mit.edu

 

 import Connectable::*;

 import GetPut::*;

 import ClientServer::*;

 

 typedef Int#(16) Sample;

 

 typedef enum {

   EndOfFile = 0,

   Data = 1

 } AudioProcessorControl deriving (Bits,Eq);

 

 

 typedef struct { 

   Sample left;

   Sample right;

 } StereoSample deriving (Bits,Eq);

 

 typedef union tagged{

  Sample Sample;

  void EndOfFile;

 } AudioProcessorUnit deriving (Bits,Eq);

 

 interface AudioPipeline;

   interface Put#(AudioProcessorUnit) sampleInput;

   interface Get#(AudioProcessorUnit) sampleOutput;

 endinterface