1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright (c) 1990-2001 by Sun Microsystems, Inc. 24*7c478bd9Sstevel@tonic-gate * All rights reserved. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #ifndef _MULTIMEDIA_AUDIOTYPECONVERT_H 28*7c478bd9Sstevel@tonic-gate #define _MULTIMEDIA_AUDIOTYPECONVERT_H 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate #include <AudioBuffer.h> 31*7c478bd9Sstevel@tonic-gate 32*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 33*7c478bd9Sstevel@tonic-gate extern "C" { 34*7c478bd9Sstevel@tonic-gate #endif 35*7c478bd9Sstevel@tonic-gate 36*7c478bd9Sstevel@tonic-gate // This is the abstract base class for an audio type conversion module 37*7c478bd9Sstevel@tonic-gate 38*7c478bd9Sstevel@tonic-gate class AudioTypeConvert { 39*7c478bd9Sstevel@tonic-gate protected: 40*7c478bd9Sstevel@tonic-gate AudioHdr hdr; // contains type information 41*7c478bd9Sstevel@tonic-gate 42*7c478bd9Sstevel@tonic-gate public: AudioTypeConvert()43*7c478bd9Sstevel@tonic-gate AudioTypeConvert() {}; // Constructor ~AudioTypeConvert()44*7c478bd9Sstevel@tonic-gate virtual ~AudioTypeConvert() {}; // Destructor DataType()45*7c478bd9Sstevel@tonic-gate virtual AudioHdr DataType() const // Return type 46*7c478bd9Sstevel@tonic-gate { return (hdr); } 47*7c478bd9Sstevel@tonic-gate 48*7c478bd9Sstevel@tonic-gate // class methods specialized by subclasses 49*7c478bd9Sstevel@tonic-gate 50*7c478bd9Sstevel@tonic-gate // TRUE if conversion ok 51*7c478bd9Sstevel@tonic-gate virtual Boolean CanConvert( 52*7c478bd9Sstevel@tonic-gate AudioHdr h) const = 0; // type to check against 53*7c478bd9Sstevel@tonic-gate 54*7c478bd9Sstevel@tonic-gate // Convert buffer to the specified type 55*7c478bd9Sstevel@tonic-gate // Either the input or output type must be handled by this class 56*7c478bd9Sstevel@tonic-gate 57*7c478bd9Sstevel@tonic-gate // Convert to new type 58*7c478bd9Sstevel@tonic-gate virtual AudioError Convert( 59*7c478bd9Sstevel@tonic-gate AudioBuffer*& inbuf, // data buffer to process 60*7c478bd9Sstevel@tonic-gate AudioHdr outhdr) = 0; // target header 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate virtual AudioError Flush(AudioBuffer*& buf) = 0; // flush any remaining 63*7c478bd9Sstevel@tonic-gate // data that may exist 64*7c478bd9Sstevel@tonic-gate }; 65*7c478bd9Sstevel@tonic-gate 66*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 67*7c478bd9Sstevel@tonic-gate } 68*7c478bd9Sstevel@tonic-gate #endif 69*7c478bd9Sstevel@tonic-gate 70*7c478bd9Sstevel@tonic-gate #endif /* !_MULTIMEDIA_AUDIOTYPECONVERT_H */ 71