Joerg Mueller
132 lines
3.5 KiB
C++
132 lines
3.5 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* Copyright 2009-2011 Jörg Hermann Müller
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*
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* This file is part of AudaSpace.
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*
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* Audaspace is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* AudaSpace is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Audaspace; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file audaspace/intern/AUD_FileWriter.cpp
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* \ingroup audaspaceintern
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*/
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#ifdef WITH_FFMPEG
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// needed for INT64_C
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#ifndef __STDC_CONSTANT_MACROS
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#define __STDC_CONSTANT_MACROS
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#endif
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#include "AUD_FFMPEGWriter.h"
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#endif
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#ifdef WITH_SNDFILE
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#include "AUD_SndFileWriter.h"
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#endif
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#include "AUD_FileWriter.h"
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#include "AUD_Buffer.h"
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static const char* write_error = "AUD_FileWriter: File couldn't be written.";
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boost::shared_ptr<AUD_IWriter> AUD_FileWriter::createWriter(std::string filename,AUD_DeviceSpecs specs,
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AUD_Container format, AUD_Codec codec, unsigned int bitrate)
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{
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#ifdef WITH_SNDFILE
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try
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{
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return boost::shared_ptr<AUD_IWriter>(new AUD_SndFileWriter(filename, specs, format, codec, bitrate));
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}
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catch(AUD_Exception&) {}
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#endif
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#ifdef WITH_FFMPEG
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try
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{
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return boost::shared_ptr<AUD_IWriter>(new AUD_FFMPEGWriter(filename, specs, format, codec, bitrate));
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}
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catch(AUD_Exception&) {}
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#endif
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AUD_THROW(AUD_ERROR_SPECS, write_error);
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}
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void AUD_FileWriter::writeReader(boost::shared_ptr<AUD_IReader> reader, boost::shared_ptr<AUD_IWriter> writer, unsigned int length, unsigned int buffersize)
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{
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AUD_Buffer buffer(buffersize * AUD_SAMPLE_SIZE(writer->getSpecs()));
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sample_t* buf = buffer.getBuffer();
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int len;
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bool eos = false;
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int channels = writer->getSpecs().channels;
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for(unsigned int pos = 0; ((pos < length) || (length <= 0)) && !eos; pos += len)
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{
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len = buffersize;
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if((len > length - pos) && (length > 0))
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len = length - pos;
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reader->read(len, eos, buf);
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for(int i = 0; i < len * channels; i++)
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{
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// clamping!
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if(buf[i] > 1)
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buf[i] = 1;
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else if(buf[i] < -1)
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buf[i] = -1;
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}
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writer->write(len, buf);
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}
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}
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void AUD_FileWriter::writeReader(boost::shared_ptr<AUD_IReader> reader, std::vector<boost::shared_ptr<AUD_IWriter> >& writers, unsigned int length, unsigned int buffersize)
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{
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AUD_Buffer buffer(buffersize * AUD_SAMPLE_SIZE(reader->getSpecs()));
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AUD_Buffer buffer2(buffersize * sizeof(sample_t));
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sample_t* buf = buffer.getBuffer();
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sample_t* buf2 = buffer2.getBuffer();
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int len;
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bool eos = false;
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int channels = reader->getSpecs().channels;
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for(unsigned int pos = 0; ((pos < length) || (length <= 0)) && !eos; pos += len)
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{
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len = buffersize;
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if((len > length - pos) && (length > 0))
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len = length - pos;
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reader->read(len, eos, buf);
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for(int channel = 0; channel < channels; channel++)
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{
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for(int i = 0; i < len; i++)
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{
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// clamping!
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if(buf[i * channels + channel] > 1)
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buf2[i] = 1;
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else if(buf[i * channels + channel] < -1)
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buf2[i] = -1;
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else
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buf2[i] = buf[i * channels + channel];
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}
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writers[channel]->write(len, buf2);
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}
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}
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}
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