audio-drain/audio/drain/EndPointWrite.hpp

86 lines
2.9 KiB
C++

/** @file
* @author Edouard DUPIN
* @copyright 2011, Edouard DUPIN, all right reserved
* @license MPL v2.0 (see license file)
*/
#pragma once
#include <audio/drain/EndPoint.hpp>
#include <etk/Function.hpp>
#include <ethread/Mutex.hpp>
#include <audio/drain/CircularBuffer.hpp>
namespace audio {
namespace drain{
typedef etk::Function<void (const audio::Time& _time,
size_t _nbChunk,
enum audio::format _format,
uint32_t _frequency,
const etk::Vector<audio::channel>& _map)> playbackFunctionWrite;
class EndPointWrite : public EndPoint {
private:
audio::drain::CircularBuffer m_buffer;
playbackFunctionWrite m_function;
ethread::Mutex m_mutex;
protected:
/**
* @brief Constructor
*/
EndPointWrite();
void init();
public:
static ememory::SharedPtr<audio::drain::EndPointWrite> create();
/**
* @brief Destructor
*/
virtual ~EndPointWrite() {};
virtual void configurationChange();
virtual bool process(audio::Time& _time,
void* _input,
size_t _inputNbChunk,
void*& _output,
size_t& _outputNbChunk);
virtual void write(const void* _value, size_t _nbChunk);
virtual void setCallback(playbackFunctionWrite _function) {
m_function = _function;
}
protected:
echrono::microseconds m_bufferSizeMicroseconds; // 0 if m_bufferSizeChunk != 0
size_t m_bufferSizeChunk; // 0 if m_bufferSizeMicroseconds != 0
size_t m_bufferUnderFlowSize; //!< Limit display of underflow in the write callback
public:
/**
* @brief Set buffer size in chunk number
* @param[in] _nbChunk Number of chunk in the buffer
*/
virtual void setBufferSize(size_t _nbChunk);
/**
* @brief Set buffer size size of the buffer with the stored time in µs
* @param[in] _time Time in microsecond of the buffer
*/
virtual void setBufferSize(const echrono::microseconds& _time);
/**
* @brief get buffer size in chunk number
* @return Number of chunk that can be written in the buffer
*/
virtual size_t getBufferSize();
/**
* @brief Set buffer size size of the buffer with the stored time in µs
* @return Time in microsecond that can be written in the buffer
*/
virtual echrono::microseconds getBufferSizeMicrosecond();
/**
* @brief Get buffer size filled in chunk number
* @return Number of chunk in the buffer (that might be read/write)
*/
virtual size_t getBufferFillSize();
/**
* @brief Set buffer size size of the buffer with the stored time in µs
* @return Time in microsecond of the buffer (that might be read/write)
*/
virtual echrono::microseconds getBufferFillSizeMicrosecond();
};
}
}