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_AUDIOUNIXFILE_H 28*0Sstevel@tonic-gate #define _MULTIMEDIA_AUDIOUNIXFILE_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 abstract base class for all file descriptor based audio i/o. 39*0Sstevel@tonic-gate // It is invalid to create an object of type AudioUnixfile. 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate class AudioUnixfile : public AudioStream { 42*0Sstevel@tonic-gate private: 43*0Sstevel@tonic-gate FileAccess mode; // access mode 44*0Sstevel@tonic-gate Boolean block; // FALSE if fd set non-blocking 45*0Sstevel@tonic-gate Boolean filehdrset; // TRUE if file hdr read/written 46*0Sstevel@tonic-gate int fd; // file descriptor 47*0Sstevel@tonic-gate char *infostring; // Info string from header 48*0Sstevel@tonic-gate unsigned int infolength; // Info string length 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate AudioUnixfile() {} // Constructor w/no args 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate protected: 53*0Sstevel@tonic-gate // Constructor 54*0Sstevel@tonic-gate AudioUnixfile( 55*0Sstevel@tonic-gate const char *path, // pathname 56*0Sstevel@tonic-gate const FileAccess acc); // access mode 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate int getfd() const; // Return descriptor 59*0Sstevel@tonic-gate void setfd(int d); // Set descriptor 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate virtual AudioError decode_filehdr(); // Get header from file 62*0Sstevel@tonic-gate virtual AudioError encode_filehdr(); // Write file header 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate // Seek in input stream 65*0Sstevel@tonic-gate virtual AudioError seekread( 66*0Sstevel@tonic-gate Double pos, // position to seek to 67*0Sstevel@tonic-gate off_t& offset); // returned byte offset 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate // Seek in output stream 70*0Sstevel@tonic-gate virtual AudioError seekwrite( 71*0Sstevel@tonic-gate Double pos, // position to seek to 72*0Sstevel@tonic-gate off_t& offset); // returned byte offset 73*0Sstevel@tonic-gate 74*0Sstevel@tonic-gate virtual Boolean isfdset() const; // TRUE if fd is valid 75*0Sstevel@tonic-gate virtual Boolean isfilehdrset() const; // TRUE if file hdr r/w 76*0Sstevel@tonic-gate 77*0Sstevel@tonic-gate // class AudioStream methods specialized here 78*0Sstevel@tonic-gate virtual Boolean opened() const; // TRUE, if open 79*0Sstevel@tonic-gate 80*0Sstevel@tonic-gate public: 81*0Sstevel@tonic-gate virtual ~AudioUnixfile(); // Destructor 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate virtual FileAccess GetAccess() const; // Get mode 84*0Sstevel@tonic-gate virtual Boolean GetBlocking() const; // TRUE, if blocking i/o 85*0Sstevel@tonic-gate virtual void SetBlocking(Boolean b); // Set block/non-block 86*0Sstevel@tonic-gate 87*0Sstevel@tonic-gate virtual AudioError Create() = 0; // Create file 88*0Sstevel@tonic-gate virtual AudioError Open() = 0; // Open file 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate // ... with search path 91*0Sstevel@tonic-gate virtual AudioError OpenPath( 92*0Sstevel@tonic-gate const char *path = 0); 93*0Sstevel@tonic-gate virtual AudioError Close(); // Close file 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate // Methods specific to the audio file format 96*0Sstevel@tonic-gate // Get info string 97*0Sstevel@tonic-gate virtual char *const GetInfostring( 98*0Sstevel@tonic-gate int& len) const; // return length 99*0Sstevel@tonic-gate 100*0Sstevel@tonic-gate // Set info string 101*0Sstevel@tonic-gate virtual void SetInfostring( 102*0Sstevel@tonic-gate const char *str, // ptr to info data 103*0Sstevel@tonic-gate int len = -1); // optional length 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate // class Audio methods specialized here 106*0Sstevel@tonic-gate // Read from position 107*0Sstevel@tonic-gate virtual AudioError ReadData( 108*0Sstevel@tonic-gate void* buf, // buffer to fill 109*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 110*0Sstevel@tonic-gate Double& pos); // start position (updated) 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate // Write at position 113*0Sstevel@tonic-gate virtual AudioError WriteData( 114*0Sstevel@tonic-gate void* buf, // buffer to copy 115*0Sstevel@tonic-gate size_t& len, // buffer length (updated) 116*0Sstevel@tonic-gate Double& pos); // start position (updated) 117*0Sstevel@tonic-gate }; 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate #include <AudioUnixfile_inline.h> 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate #ifdef __cplusplus 122*0Sstevel@tonic-gate } 123*0Sstevel@tonic-gate #endif 124*0Sstevel@tonic-gate 125*0Sstevel@tonic-gate #endif /* !_MULTIMEDIA_AUDIOUNIXFILE_H */ 126