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