aflibDevFile.h

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00001 /*
00002  * Copyright: (C) 1999-2001 Bruce W. Forsberg
00003  *
00004  *   This library is free software; you can redistribute it and/or
00005  *   modify it under the terms of the GNU Lesser General Public
00006  *   License as published by the Free Software Foundation; either
00007  *   version 2.1 of the License, or any later version.
00008  *
00009  *   This library is distributed in the hope that it will be useful,
00010  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  *   Lesser General Public License for more details.
00013  *
00014  *   You should have received a copy of the GNU Lesser General Public
00015  *   License along with this library; if not, write to the Free Software
00016  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
00017  *
00018  *   Bruce Forsberg  forsberg@tns.net
00019  *
00020  */
00021 
00041 #ifndef _AFLIBDEVFILE_H
00042 #define _AFLIBDEVFILE_H
00043 
00044 #ifdef HAVE_CONFIG_H
00045 #include <config.h>
00046 #endif
00047 
00048 #include "aflibFile.h"
00049 
00050 #define AFLIB_DEV_ITEM_BUFFER "aflib_dev_item_buffer"
00051 
00052 class aflibDevFile : public aflibFile {
00053 
00054 public:
00055 
00056    aflibDevFile();
00057 
00058    ~aflibDevFile();
00059 
00060    aflibStatus
00061    afopen(
00062       const char * file,
00063       aflibConfig* cfg);
00064 
00065    aflibStatus
00066    afcreate(
00067       const char * file,
00068       const aflibConfig& config);
00069 
00070    aflibStatus
00071    afread(
00072       aflibData& data,
00073       long long position = -1);
00074 
00075    aflibStatus
00076    afwrite(
00077       aflibData& data,
00078       long long position = -1);
00079 
00080    bool
00081    setItem(
00082       const char * item,
00083       const void * value);
00084 
00085    void
00086    programDevice();
00087 
00088    bool
00089    isDataSizeSupported(aflib_data_size size);
00090 
00091    bool
00092    isEndianSupported(aflib_data_endian end);
00093 
00094    bool
00095    isSampleRateSupported(int& rate);
00096 
00097 private:
00098 
00099    int
00100    createBuffer(
00101       const aflibConfig& cfg,
00102       double factor);
00103 
00104 bool   _create_mode;
00105 int    _snd_format;
00106 int    _snd_stereo;
00107 int    _snd_speed;
00108 double _snd_buffer;
00109 int  _fd_int;
00110 aflib_data_size  _size;
00111 string  _file;
00112 
00113 };
00114 
00115 
00116 #endif

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