mirror of
https://git.jami.net/savoirfairelinux/jami-client-qt.git
synced 2025-08-05 07:15:40 +02:00
02d25db786
Removes the fixed rate QTimer that was used to query shm frames, and waits on the producer in a thread loop. Also factors FPS value tracking into the Renderer base class. Gitlab: #938 Change-Id: Icf44c8399d70c4127c512802b6cf6c6dccdccfd6
121 lines
2.7 KiB
C++
121 lines
2.7 KiB
C++
/*
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* Copyright (C) 2018-2023 Savoir-faire Linux Inc.
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* Author: Sébastien Blin <sebastien.blin@savoirfairelinux.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "api/video.h"
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#include "typedefs.h"
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#include <QObject>
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#include <QSize>
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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namespace lrc {
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namespace video {
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class FpsTracker;
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class Renderer : public QObject
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{
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Q_OBJECT
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public:
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constexpr static const char RENDERER_ID[] = "RENDERER_ID";
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constexpr static const char FPS[] = "FPS";
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constexpr static const char RES[] = "RES";
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Renderer(const QString& id, const QSize& res);
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virtual ~Renderer();
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/**
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* @return renderer's fps
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*/
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double fps() const;
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/**
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* @return renderer's id
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*/
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QString id() const;
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/**
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* @return current renderer dimensions
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*/
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QSize size() const;
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/**
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* @return current rendered frame
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*/
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virtual lrc::api::video::Frame currentFrame() const = 0;
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/**
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* set fps
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*/
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void setFPS(double fps);
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/**
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* Update the FPS tracker.
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*/
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void updateFpsTracker();
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MapStringString getInfos() const;
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public Q_SLOTS:
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virtual void startRendering() = 0;
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virtual void stopRendering() = 0;
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Q_SIGNALS:
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void frameUpdated();
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void stopped();
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void started(const QSize& size);
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void frameBufferRequested(AVFrame* avFrame);
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void fpsChanged();
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private:
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QString id_;
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QSize size_;
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double fps_;
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FpsTracker* fpsTracker_;
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};
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// Helper that counts ticks, and notifies of FPS changes.
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class FpsTracker : public QObject
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{
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Q_OBJECT
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public:
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FpsTracker(QObject* parent = nullptr);
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~FpsTracker() = default;
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// Call this function every frame.
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void update();
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// Emitted after every checkInterval_ when update() is called.
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Q_SIGNAL void fpsUpdated(double fps);
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private:
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using clock_type = std::chrono::high_resolution_clock;
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const double checkInterval_ {1.0};
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unsigned frameCount_ {0};
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std::chrono::time_point<clock_type> lastTime_;
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};
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} // namespace video
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} // namespace lrc
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