1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1992-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _MULTIMEDIA_AUDIOTYPESAMPLERATE_H 28 #define _MULTIMEDIA_AUDIOTYPESAMPLERATE_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <AudioTypeConvert.h> 33 #include <Resample.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 // This is the class doing Sample Rate conversion 40 41 class AudioTypeSampleRate : public AudioTypeConvert { 42 private: 43 ResampleFilter resampler; 44 int input_rate; 45 int output_rate; 46 47 protected: 48 49 public: 50 AudioTypeSampleRate(int inrate, int outrate); // Constructor 51 ~AudioTypeSampleRate(); // Destructor 52 53 // Class AudioTypeConvert methods specialized here 54 // TRUE if conversion ok 55 virtual Boolean CanConvert( 56 AudioHdr h) const; // type to check against 57 58 // Convert buffer to the specified type 59 // Either the input or output type must be handled by this class 60 // Convert to new type 61 virtual AudioError Convert( 62 AudioBuffer*& inbuf, // data buffer to process 63 AudioHdr outhdr); // target header 64 65 virtual AudioError Flush(AudioBuffer*& buf); // flush remains 66 }; 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif /* !_MULTIMEDIA_AUDIOTYPESAMPLERATE_H */ 73