986267300b
Deleting the old internal audaspace. Major changes from there are: - The whole library was refactored to use C++11. - Many stability and performance improvements. - Major Python API refactor: - Most requested: Play self generated sounds using numpy arrays. - For games: Sound list, random sounds and dynamic music. - Writing sounds to files. - Sequencing API. - Opening sound devices, eg. Jack. - Ability to choose different OpenAL devices in the user settings.
84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/*******************************************************************************
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* Copyright 2009-2016 Jörg Müller
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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******************************************************************************/
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#include "util/StreamBuffer.h"
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#include "util/BufferReader.h"
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#include "util/Buffer.h"
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// 5 sec * 48000 samples/sec * 4 bytes/sample * 6 channels
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#define BUFFER_RESIZE_BYTES 5760000
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AUD_NAMESPACE_BEGIN
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StreamBuffer::StreamBuffer(std::shared_ptr<ISound> sound) :
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m_buffer(new Buffer())
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{
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std::shared_ptr<IReader> reader = sound->createReader();
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m_specs = reader->getSpecs();
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int sample_size = AUD_SAMPLE_SIZE(m_specs);
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int length;
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int index = 0;
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bool eos = false;
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// get an approximated size if possible
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int size = reader->getLength();
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if(size <= 0)
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size = BUFFER_RESIZE_BYTES / sample_size;
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else
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size += m_specs.rate;
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// as long as the end of the stream is not reached
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while(!eos)
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{
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// increase
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m_buffer->resize(size*sample_size, true);
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// read more
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length = size-index;
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reader->read(length, eos, m_buffer->getBuffer() + index * m_specs.channels);
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if(index == m_buffer->getSize() / sample_size)
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size += BUFFER_RESIZE_BYTES / sample_size;
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index += length;
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}
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m_buffer->resize(index * sample_size, true);
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}
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StreamBuffer::StreamBuffer(std::shared_ptr<Buffer> buffer, Specs specs) :
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m_buffer(buffer), m_specs(specs)
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{
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}
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std::shared_ptr<Buffer> StreamBuffer::getBuffer()
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{
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return m_buffer;
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}
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Specs StreamBuffer::getSpecs()
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{
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return m_specs;
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}
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std::shared_ptr<IReader> StreamBuffer::createReader()
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{
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return std::shared_ptr<IReader>(new BufferReader(m_buffer, m_specs));
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}
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AUD_NAMESPACE_END
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