92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/** @file
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* @author Edouard DUPIN
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* @copyright 2011, Edouard DUPIN, all right reserved
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* @license APACHE v2.0 (see license file)
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*/
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#ifndef __AUDIO_DRAIN_ALGO_VOLUME_H__
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#define __AUDIO_DRAIN_ALGO_VOLUME_H__
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#include <audio/drain/Algo.h>
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#ifdef HAVE_SPEEX_DSP_RESAMPLE
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#include <speex/speex_resampler.h>
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#endif
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#include <etk/memory.h>
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namespace audio {
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namespace drain {
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// data structure.
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class VolumeElement {
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public:
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VolumeElement(const std::string& _name="ERROR-VOLUME-NAME", float _volumedB=0.0f) :
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m_name(_name),
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m_volumedB(_volumedB) {
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}
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private:
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std::string m_name;
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public:
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std::string getName() const {
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return m_name;
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}
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private:
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float m_volumedB;
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public:
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float getVolume() const {
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return m_volumedB;
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}
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void setVolume(float _volumedB) {
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m_volumedB = _volumedB;
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}
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};
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// TODO: Optimisation
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// TODO: Zero crossing
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// TODO: Continuous update volume
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// TODO: Manage multiple volume
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// TODO: Manage set volume
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class Volume : public audio::drain::Algo {
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private:
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std::vector<std11::shared_ptr<drain::VolumeElement> > m_volumeList;
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// for float input :
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float m_volumeAppli;
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// for integer input :
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int32_t m_volumeDecalage; // Volume to apply is simple as : X * m_coef >> m_coef
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int32_t m_volumeCoef;
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// convertion function:
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void (*m_functionConvert)(void* _input, void* _output, size_t _nbSample, int32_t _volumeCoef, int32_t _volumeDecalage, float _volumeAppli);
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protected:
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/**
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* @brief Constructor
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*/
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Volume();
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void init();
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public:
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static std11::shared_ptr<Volume> create();
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/**
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* @brief Destructor
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*/
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virtual ~Volume();
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protected:
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virtual void configurationChange();
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public:
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virtual bool process(audio::Time& _time,
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void* _input,
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size_t _inputNbChunk,
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void*& _output,
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size_t& _outputNbChunk);
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public:
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virtual std::vector<audio::format> getFormatSupportedInput();
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virtual std::vector<audio::format> getFormatSupportedOutput();
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public:
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virtual void addVolumeStage(const std11::shared_ptr<drain::VolumeElement>& _volume);
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virtual bool setParameter(const std::string& _parameter, const std::string& _value);
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virtual std::string getParameter(const std::string& _parameter) const;
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virtual std::string getParameterProperty(const std::string& _parameter) const;
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public:
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void volumeChange();
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};
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}
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}
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#endif
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