Joerg Mueller
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.
126 lines
3.0 KiB
C++
126 lines
3.0 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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#pragma once
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#include "IReader.h"
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#ifdef LIBSNDFILE_PLUGIN
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#define AUD_BUILD_PLUGIN
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#endif
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/**
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* @file SndFileReader.h
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* @ingroup plugin
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* The SndFileReader class.
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*/
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#include <string>
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#include <sndfile.h>
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#include <memory>
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AUD_NAMESPACE_BEGIN
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class Buffer;
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/**
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* This class reads a sound file via libsndfile.
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*/
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class AUD_PLUGIN_API SndFileReader : public IReader
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{
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private:
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/**
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* The current position in samples.
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*/
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int m_position;
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/**
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* The sample count in the file.
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*/
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int m_length;
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/**
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* Whether the file is seekable.
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*/
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bool m_seekable;
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/**
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* The specification of the audio data.
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*/
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Specs m_specs;
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/**
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* The sndfile.
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*/
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SNDFILE* m_sndfile;
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/**
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* The virtual IO structure for memory file reading.
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*/
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SF_VIRTUAL_IO m_vio;
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/**
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* The pointer to the memory file.
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*/
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std::shared_ptr<Buffer> m_membuffer;
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/**
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* The current reading pointer of the memory file.
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*/
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int m_memoffset;
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// Functions for libsndfile virtual IO functionality
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AUD_LOCAL static sf_count_t vio_get_filelen(void* user_data);
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AUD_LOCAL static sf_count_t vio_seek(sf_count_t offset, int whence, void* user_data);
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AUD_LOCAL static sf_count_t vio_read(void* ptr, sf_count_t count, void* user_data);
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AUD_LOCAL static sf_count_t vio_tell(void* user_data);
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// delete copy constructor and operator=
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SndFileReader(const SndFileReader&) = delete;
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SndFileReader& operator=(const SndFileReader&) = delete;
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public:
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/**
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* Creates a new reader.
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* \param filename The path to the file to be read.
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* \exception Exception Thrown if the file specified does not exist or
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* cannot be read with libsndfile.
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*/
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SndFileReader(std::string filename);
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/**
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* Creates a new reader.
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* \param buffer The buffer to read from.
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* \exception Exception Thrown if the buffer specified cannot be read
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* with libsndfile.
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*/
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SndFileReader(std::shared_ptr<Buffer> buffer);
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/**
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* Destroys the reader and closes the file.
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*/
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virtual ~SndFileReader();
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virtual bool isSeekable() const;
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virtual void seek(int position);
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virtual int getLength() const;
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virtual int getPosition() const;
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virtual Specs getSpecs() const;
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virtual void read(int& length, bool& eos, sample_t* buffer);
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};
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AUD_NAMESPACE_END
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