pa_linux_alsa.h

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00001 #ifndef PA_LINUX_ALSA_H
00002 #define PA_LINUX_ALSA_H
00003 
00004 /*
00005  * $Id: pa_linux_alsa.h 1083 2006-08-23 07:30:49Z rossb $
00006  * PortAudio Portable Real-Time Audio Library
00007  * ALSA-specific extensions
00008  *
00009  * Copyright (c) 1999-2000 Ross Bencina and Phil Burk
00010  *
00011  * Permission is hereby granted, free of charge, to any person obtaining
00012  * a copy of this software and associated documentation files
00013  * (the "Software"), to deal in the Software without restriction,
00014  * including without limitation the rights to use, copy, modify, merge,
00015  * publish, distribute, sublicense, and/or sell copies of the Software,
00016  * and to permit persons to whom the Software is furnished to do so,
00017  * subject to the following conditions:
00018  *
00019  * The above copyright notice and this permission notice shall be
00020  * included in all copies or substantial portions of the Software.
00021  *
00022  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00023  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00024  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00025  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
00026  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
00027  * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00028  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00029  */
00030 
00031 /*
00032  * The text above constitutes the entire PortAudio license; however, 
00033  * the PortAudio community also makes the following non-binding requests:
00034  *
00035  * Any person wishing to distribute modifications to the Software is
00036  * requested to send the modifications to the original developer so that
00037  * they can be incorporated into the canonical version. It is also 
00038  * requested that these non-binding requests be included along with the 
00039  * license above.
00040  */
00041 
00046 #ifdef __cplusplus
00047 extern "C" {
00048 #endif
00049 
00050 typedef struct PaAlsaStreamInfo
00051 {
00052     unsigned long size;
00053     PaHostApiTypeId hostApiType;
00054     unsigned long version;
00055 
00056     const char *deviceString;
00057 }
00058 PaAlsaStreamInfo;
00059 
00060 void PaAlsa_InitializeStreamInfo( PaAlsaStreamInfo *info );
00061 
00062 void PaAlsa_EnableRealtimeScheduling( PaStream *s, int enable );
00063 
00064 void PaAlsa_EnableWatchdog( PaStream *s, int enable );
00065 
00066 #ifdef __cplusplus
00067 }
00068 #endif
00069 
00070 #endif

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