69 lines
1.2 KiB
C++
69 lines
1.2 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include <QtCore/QTimer>
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struct AVFrame;
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namespace Media {
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namespace Capture {
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struct Update {
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int samples = 0;
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ushort level = 0;
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};
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struct Result {
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QByteArray bytes;
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VoiceWaveform waveform;
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int samples = 0;
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};
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void Start();
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void Finish();
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class Instance final : public QObject {
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public:
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Instance();
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~Instance();
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void check();
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[[nodiscard]] bool available() const {
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return _available;
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}
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[[nodiscard]] rpl::producer<Update, rpl::empty_error> updated() const {
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return _updates.events();
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}
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[[nodiscard]] rpl::producer<bool> startedChanges() const {
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return _started.changes();
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}
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void start();
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void stop(Fn<void(Result&&)> callback = nullptr);
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private:
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class Inner;
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friend class Inner;
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bool _available = false;
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rpl::variable<bool> _started = false;;
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rpl::event_stream<Update, rpl::empty_error> _updates;
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QThread _thread;
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std::unique_ptr<Inner> _inner;
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};
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[[nodiscard]] Instance *instance();
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} // namespace Capture
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} // namespace Media
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