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) 1992-2001 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_AUDIOBUFFER_H 28*0Sstevel@tonic-gate #define _MULTIMEDIA_AUDIOBUFFER_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 <AudioStream.h> 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate #ifdef __cplusplus 35*0Sstevel@tonic-gate extern "C" { 36*0Sstevel@tonic-gate #endif 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate // This is the class describing a mapped buffer of audio data. 39*0Sstevel@tonic-gate // In addition to the standard Read and Write methods, the address 40*0Sstevel@tonic-gate // of the buffer may be obtained and the data accessed directly. 41*0Sstevel@tonic-gate 42*0Sstevel@tonic-gate class AudioBuffer : public AudioStream { 43*0Sstevel@tonic-gate private: 44*0Sstevel@tonic-gate Double buflen; // buffer size, in seconds 45*0Sstevel@tonic-gate int zflag; // malloc'd with zmalloc? 46*0Sstevel@tonic-gate protected: 47*0Sstevel@tonic-gate size_t bufsize; // buffer size, in bytes 48*0Sstevel@tonic-gate void* bufaddr; // buffer address 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate // class AudioStream methods specialized here 51*0Sstevel@tonic-gate virtual Boolean opened() const; // TRUE, if open 52*0Sstevel@tonic-gate virtual AudioError alloc(); // Allocate buffer 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate public: 55*0Sstevel@tonic-gate // Constructor 56*0Sstevel@tonic-gate AudioBuffer( 57*0Sstevel@tonic-gate double len = 0., // buffer size, in seconds 58*0Sstevel@tonic-gate const char *name = "(buffer)"); // name 59*0Sstevel@tonic-gate ~AudioBuffer(); // Destructor 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate virtual void* GetAddress() const; // Get buffer address 62*0Sstevel@tonic-gate virtual void* GetAddress(Double) const; // Get address at offset 63*0Sstevel@tonic-gate virtual AudioError SetSize(Double len); // Change buffer size 64*0Sstevel@tonic-gate virtual Double GetSize() const; // Get buffer size 65*0Sstevel@tonic-gate virtual size_t GetByteCount() const; // Get size, in bytes 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate // class AudioStream methods specialized here 68*0Sstevel@tonic-gate // Set header 69*0Sstevel@tonic-gate virtual AudioError SetHeader( 70*0Sstevel@tonic-gate const AudioHdr& h); // header to copy 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate // Set data length 73*0Sstevel@tonic-gate virtual void SetLength( 74*0Sstevel@tonic-gate Double len); // new length, in secs 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate // class Audio methods specialized here 77*0Sstevel@tonic-gate 78*0Sstevel@tonic-gate // Read from position 79*0Sstevel@tonic-gate virtual AudioError ReadData( 80*0Sstevel@tonic-gate void* buf, // buffer to fill 81*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 82*0Sstevel@tonic-gate Double& pos); // start position (updated) 83*0Sstevel@tonic-gate 84*0Sstevel@tonic-gate // Write at position 85*0Sstevel@tonic-gate virtual AudioError WriteData( 86*0Sstevel@tonic-gate void* buf, // buffer to copy 87*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 88*0Sstevel@tonic-gate Double& pos); // start position (updated) 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate // Append at position 91*0Sstevel@tonic-gate virtual AudioError AppendData( 92*0Sstevel@tonic-gate void* buf, // buffer to copy 93*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 94*0Sstevel@tonic-gate Double& pos); // start position (updated) 95*0Sstevel@tonic-gate 96*0Sstevel@tonic-gate // copy to another audio obj. 97*0Sstevel@tonic-gate virtual AudioError AsyncCopy( 98*0Sstevel@tonic-gate Audio* to, // dest audio object 99*0Sstevel@tonic-gate Double& frompos, 100*0Sstevel@tonic-gate Double& topos, 101*0Sstevel@tonic-gate Double& limit); 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate virtual Boolean isBuffer() const { return (TRUE); } 104*0Sstevel@tonic-gate }; 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate #ifdef __cplusplus 107*0Sstevel@tonic-gate } 108*0Sstevel@tonic-gate #endif 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate #endif /* !_MULTIMEDIA_AUDIOBUFFER_H */ 111