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) 1990-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _MULTIMEDIA_AUDIOEXTENT_H 28 #define _MULTIMEDIA_AUDIOEXTENT_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <values.h> 33 #include <Audio.h> 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 // This class defines an extent of a referenced audio class 40 class AudioExtent : public Audio { 41 private: 42 Audio* ref; // reference to audio object 43 Double start; // start time 44 Double end; // end time 45 46 AudioExtent operator=(AudioExtent); // Assignment is illegal 47 48 public: 49 // Constructor 50 AudioExtent( 51 Audio* obj, // audio object 52 double s = 0., // start time 53 double e = AUDIO_UNKNOWN_TIME); // end time 54 virtual ~AudioExtent(); // Destructor 55 56 Audio* GetRef() const; // Get audio obj 57 void SetRef(Audio* r); // Set audio obj 58 Double GetStart() const; // Get start time 59 void SetStart(Double s); // Set start time 60 Double GetEnd() const; // Get end time 61 void SetEnd(Double e); // Set end time 62 63 // class Audio methods specialized here 64 virtual Double GetLength() const; // Get length, in secs 65 virtual char *GetName() const; // Get name string 66 virtual AudioHdr GetHeader(); // Get header 67 virtual AudioHdr GetHeader(Double pos); // Get header at pos 68 69 // Read from position 70 virtual AudioError ReadData( 71 void* buf, // buffer to fill 72 size_t& len, // buffer length (updated) 73 Double& pos); // start position (updated) 74 75 // Write is prohibited 76 virtual AudioError WriteData( 77 void* buf, // buffer to copy 78 size_t& len, // buffer length (updated) 79 Double& pos); // start position (updated) 80 isExtent()81 virtual Boolean isExtent() const { return (TRUE); } 82 }; 83 84 #ifdef __cplusplus 85 } 86 #endif 87 88 #endif /* !_MULTIMEDIA_AUDIOEXTENT_H */ 89