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