1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1990-2001 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef _MULTIMEDIA_AUDIOSTREAM_H 28*0Sstevel@tonic-gate #define _MULTIMEDIA_AUDIOSTREAM_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <Audio.h> 33*0Sstevel@tonic-gate #include <AudioHdr.h> 34*0Sstevel@tonic-gate #include <stdlib.h> 35*0Sstevel@tonic-gate #include <AudioDebug.h> 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #ifdef __cplusplus 38*0Sstevel@tonic-gate extern "C" { 39*0Sstevel@tonic-gate #endif 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate // This is the abstract base class for all audio data sources/sinks. 42*0Sstevel@tonic-gate // It is invalid to create an object of type AudioStream. 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate class AudioStream : public Audio { 45*0Sstevel@tonic-gate private: 46*0Sstevel@tonic-gate AudioHdr hdr; // data encoding info 47*0Sstevel@tonic-gate Double length; // length of data, in secs 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate protected: 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate Boolean hdrset() const; // TRUE if header valid 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate // Set header (always) 54*0Sstevel@tonic-gate AudioError updateheader( 55*0Sstevel@tonic-gate const AudioHdr& h); // header to copy 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate // Set data length 58*0Sstevel@tonic-gate void setlength( 59*0Sstevel@tonic-gate Double len); // new length, in secs 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate virtual Boolean opened() const = 0; // TRUE if stream 'open' 62*0Sstevel@tonic-gate 63*0Sstevel@tonic-gate public: 64*0Sstevel@tonic-gate AudioStream(const char *path = ""); // Constructor 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate // Set header 67*0Sstevel@tonic-gate virtual AudioError SetHeader( 68*0Sstevel@tonic-gate const AudioHdr& h); // header to copy 69*0Sstevel@tonic-gate 70*0Sstevel@tonic-gate // Set data length 71*0Sstevel@tonic-gate virtual void SetLength( 72*0Sstevel@tonic-gate Double len); // new length, in secs 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate // XXX - is this needed? do we need time->sample frames? 75*0Sstevel@tonic-gate virtual size_t GetByteCount() const; // Get length, in bytes 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate // class Audio methods specialized here 78*0Sstevel@tonic-gate virtual AudioHdr GetHeader(); // Get header 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate virtual Double GetLength() const; // Get length, in secs 81*0Sstevel@tonic-gate 82*0Sstevel@tonic-gate // Make sure endian of the data matches the current processor. 83*0Sstevel@tonic-gate AudioError coerceEndian(unsigned char *buf, size_t len, 84*0Sstevel@tonic-gate AudioEndian en); 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate virtual Boolean isEndianSensitive() const; localByteOrder()87*0Sstevel@tonic-gate AudioEndian localByteOrder() const 88*0Sstevel@tonic-gate { 89*0Sstevel@tonic-gate return (hdr.localByteOrder()); 90*0Sstevel@tonic-gate } 91*0Sstevel@tonic-gate }; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate #include <AudioStream_inline.h> 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate #ifdef __cplusplus 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate #endif 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate #endif /* !_MULTIMEDIA_AUDIOSTREAM_H */ 100