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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#include "file/FileWriter.h"
#include "file/FileManager.h"
#include "util/Buffer.h"
#include "IReader.h"
#include "Exception.h"
AUD_NAMESPACE_BEGIN
std::shared_ptr<IWriter> FileWriter::createWriter(std::string filename,DeviceSpecs specs, Container format, Codec codec, unsigned int bitrate)
{
return FileManager::createWriter(filename, specs, format, codec, bitrate);
}
void FileWriter::writeReader(std::shared_ptr<IReader> reader, std::shared_ptr<IWriter> writer, unsigned int length, unsigned int buffersize)
{
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 FileWriter::writeReader(std::shared_ptr<IReader> reader, std::vector<std::shared_ptr<IWriter> >& writers, unsigned int length, unsigned int buffersize)
{
Buffer buffer(buffersize * AUD_SAMPLE_SIZE(reader->getSpecs()));
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);
}
}
}
AUD_NAMESPACE_END
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