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Diffstat (limited to 'extern/audaspace/src/file/FileWriter.cpp')
-rw-r--r-- | extern/audaspace/src/file/FileWriter.cpp | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/extern/audaspace/src/file/FileWriter.cpp b/extern/audaspace/src/file/FileWriter.cpp new file mode 100644 index 00000000000..a6bb0f0049a --- /dev/null +++ b/extern/audaspace/src/file/FileWriter.cpp @@ -0,0 +1,95 @@ +/******************************************************************************* + * 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 |