MythTV: audioinputoss.h Source File

00001 /*
00002  * Copyright (C) 2007  Anand K. Mistry
00003  * Copyright (C) 2008  Alan Calvert
00004  *
00005  * This program is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU General Public License
00007  * as published by the Free Software Foundation; either version 2
00008  * of the License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
00018  * 02110-1301, USA.
00019  */
00020 /* vim: set expandtab tabstop=4 shiftwidth=4: */
00021 
00022 #ifndef _AUDIOINPUTOSS_H_
00023 #define _AUDIOINPUTOSS_H_
00024 
00025 #include "audioinput.h"
00026 
00027 class AudioInputOSS : public AudioInput
00028 {
00029     public:
00030         AudioInputOSS(const QString &device);
00031         ~AudioInputOSS() { Close(); };
00032 
00033         bool Open(uint sample_bits, uint sample_rate, uint channels);
00034         inline bool IsOpen(void) { return (dsp_fd > -1); }
00035         void Close(void);
00036 
00037         bool Start(void);
00038         bool Stop(void);
00039 
00040         int GetBlockSize(void);
00041         int GetSamples(void *buffer, uint num_samples);
00042         int GetNumReadyBytes(void);
00043 
00044     private:
00045         QByteArray m_device_name;
00046         int dsp_fd;
00047 };
00048 #endif /* _AUDIOINPUTOSS_H_ */
00049