EMIPLIB

mipsndfileoutput.h

Go to the documentation of this file.
00001 /*
00002     
00003   This file is a part of EMIPLIB, the EDM Media over IP Library.
00004   
00005   Copyright (C) 2006-2011  Hasselt University - Expertise Centre for
00006                       Digital Media (EDM) (http://www.edm.uhasselt.be)
00007 
00008   This library is free software; you can redistribute it and/or
00009   modify it under the terms of the GNU Lesser General Public
00010   License as published by the Free Software Foundation; either
00011   version 2.1 of the License, or (at your option) any later version.
00012 
00013   This library is distributed in the hope that it will be useful,
00014   but WITHOUT ANY WARRANTY; without even the implied warranty of
00015   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016   Lesser General Public License for more details.
00017 
00018   You should have received a copy of the GNU Lesser General Public
00019   License along with this library; if not, write to the Free Software
00020   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  
00021   USA
00022 
00023 */
00024 
00029 #ifndef MIPSNDFILEOUTPUT_H
00030 
00031 #define MIPSNDFILEOUTPUT_H
00032 
00033 #include "mipconfig.h"
00034 
00035 #ifdef MIPCONFIG_SUPPORT_SNDFILE
00036 
00037 #include "mipcomponent.h"
00038 #include <sndfile.h>
00039 
00045 class EMIPLIB_IMPORTEXPORT MIPSndFileOutput : public MIPComponent
00046 {
00047 public:
00048         MIPSndFileOutput();
00049         ~MIPSndFileOutput();
00050 
00063         bool open(const std::string &fname, int sampRate, int channels, int bytesPerSample, bool append);
00064 
00068         bool close();
00069 
00071         int getSamplingRate() const                                                             { if (m_pSndFile) return m_sampRate; return 0; }
00072         
00074         int getNumberOfChannels() const                                                         { if (m_pSndFile) return m_channels; return 0; }
00075         
00076         bool push(const MIPComponentChain &chain, int64_t iteration, MIPMessage *pMsg);
00077         bool pull(const MIPComponentChain &chain, int64_t iteration, MIPMessage **pMsg);
00078 private:
00079         SNDFILE *m_pSndFile;
00080         int m_sampRate;
00081         int m_channels;
00082 };
00083 
00084 #endif // MIPCONFIG_SUPPORT_SNDFILE
00085 
00086 #endif // MIPSNDFILEOUTPUT_H
00087