17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright (c) 1992-2001 by Sun Microsystems, Inc. 247c478bd9Sstevel@tonic-gate * All rights reserved. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #ifndef _MULTIMEDIA_AUDIOUNIXFILE_H 287c478bd9Sstevel@tonic-gate #define _MULTIMEDIA_AUDIOUNIXFILE_H 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate #include <AudioStream.h> 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #ifdef __cplusplus 337c478bd9Sstevel@tonic-gate extern "C" { 347c478bd9Sstevel@tonic-gate #endif 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate // This is the abstract base class for all file descriptor based audio i/o. 377c478bd9Sstevel@tonic-gate // It is invalid to create an object of type AudioUnixfile. 387c478bd9Sstevel@tonic-gate 397c478bd9Sstevel@tonic-gate class AudioUnixfile : public AudioStream { 407c478bd9Sstevel@tonic-gate private: 417c478bd9Sstevel@tonic-gate FileAccess mode; // access mode 427c478bd9Sstevel@tonic-gate Boolean block; // FALSE if fd set non-blocking 437c478bd9Sstevel@tonic-gate Boolean filehdrset; // TRUE if file hdr read/written 447c478bd9Sstevel@tonic-gate int fd; // file descriptor 457c478bd9Sstevel@tonic-gate char *infostring; // Info string from header 467c478bd9Sstevel@tonic-gate unsigned int infolength; // Info string length 477c478bd9Sstevel@tonic-gate AudioUnixfile()487c478bd9Sstevel@tonic-gate AudioUnixfile() {} // Constructor w/no args 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate protected: 517c478bd9Sstevel@tonic-gate // Constructor 527c478bd9Sstevel@tonic-gate AudioUnixfile( 537c478bd9Sstevel@tonic-gate const char *path, // pathname 547c478bd9Sstevel@tonic-gate const FileAccess acc); // access mode 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate int getfd() const; // Return descriptor 577c478bd9Sstevel@tonic-gate void setfd(int d); // Set descriptor 587c478bd9Sstevel@tonic-gate 597c478bd9Sstevel@tonic-gate virtual AudioError decode_filehdr(); // Get header from file 607c478bd9Sstevel@tonic-gate virtual AudioError encode_filehdr(); // Write file header 617c478bd9Sstevel@tonic-gate 627c478bd9Sstevel@tonic-gate // Seek in input stream 637c478bd9Sstevel@tonic-gate virtual AudioError seekread( 647c478bd9Sstevel@tonic-gate Double pos, // position to seek to 657c478bd9Sstevel@tonic-gate off_t& offset); // returned byte offset 667c478bd9Sstevel@tonic-gate 677c478bd9Sstevel@tonic-gate // Seek in output stream 687c478bd9Sstevel@tonic-gate virtual AudioError seekwrite( 697c478bd9Sstevel@tonic-gate Double pos, // position to seek to 707c478bd9Sstevel@tonic-gate off_t& offset); // returned byte offset 717c478bd9Sstevel@tonic-gate 727c478bd9Sstevel@tonic-gate virtual Boolean isfdset() const; // TRUE if fd is valid 737c478bd9Sstevel@tonic-gate virtual Boolean isfilehdrset() const; // TRUE if file hdr r/w 747c478bd9Sstevel@tonic-gate 757c478bd9Sstevel@tonic-gate // class AudioStream methods specialized here 767c478bd9Sstevel@tonic-gate virtual Boolean opened() const; // TRUE, if open 777c478bd9Sstevel@tonic-gate 787c478bd9Sstevel@tonic-gate public: 797c478bd9Sstevel@tonic-gate virtual ~AudioUnixfile(); // Destructor 807c478bd9Sstevel@tonic-gate 817c478bd9Sstevel@tonic-gate virtual FileAccess GetAccess() const; // Get mode 827c478bd9Sstevel@tonic-gate virtual Boolean GetBlocking() const; // TRUE, if blocking i/o 837c478bd9Sstevel@tonic-gate virtual void SetBlocking(Boolean b); // Set block/non-block 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate virtual AudioError Create() = 0; // Create file 867c478bd9Sstevel@tonic-gate virtual AudioError Open() = 0; // Open file 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate // ... with search path 897c478bd9Sstevel@tonic-gate virtual AudioError OpenPath( 907c478bd9Sstevel@tonic-gate const char *path = 0); 917c478bd9Sstevel@tonic-gate virtual AudioError Close(); // Close file 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate // Methods specific to the audio file format 947c478bd9Sstevel@tonic-gate // Get info string 95*d8048045SRichard Lowe virtual char *GetInfostring( 967c478bd9Sstevel@tonic-gate int& len) const; // return length 977c478bd9Sstevel@tonic-gate 987c478bd9Sstevel@tonic-gate // Set info string 997c478bd9Sstevel@tonic-gate virtual void SetInfostring( 1007c478bd9Sstevel@tonic-gate const char *str, // ptr to info data 1017c478bd9Sstevel@tonic-gate int len = -1); // optional length 1027c478bd9Sstevel@tonic-gate 1037c478bd9Sstevel@tonic-gate // class Audio methods specialized here 1047c478bd9Sstevel@tonic-gate // Read from position 1057c478bd9Sstevel@tonic-gate virtual AudioError ReadData( 1067c478bd9Sstevel@tonic-gate void* buf, // buffer to fill 1077c478bd9Sstevel@tonic-gate size_t& len, // buffer length (updated) 1087c478bd9Sstevel@tonic-gate Double& pos); // start position (updated) 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate // Write at position 1117c478bd9Sstevel@tonic-gate virtual AudioError WriteData( 1127c478bd9Sstevel@tonic-gate void* buf, // buffer to copy 1137c478bd9Sstevel@tonic-gate size_t& len, // buffer length (updated) 1147c478bd9Sstevel@tonic-gate Double& pos); // start position (updated) 1157c478bd9Sstevel@tonic-gate }; 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate #include <AudioUnixfile_inline.h> 1187c478bd9Sstevel@tonic-gate 1197c478bd9Sstevel@tonic-gate #ifdef __cplusplus 1207c478bd9Sstevel@tonic-gate } 1217c478bd9Sstevel@tonic-gate #endif 1227c478bd9Sstevel@tonic-gate 1237c478bd9Sstevel@tonic-gate #endif /* !_MULTIMEDIA_AUDIOUNIXFILE_H */ 124