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  1. Qt
  2. QTBUG-141820 Implement setting frame rate for screen and window capture
  3. QTBUG-141822

Add frame rate methods to QPlatformSurfaceCapture and derived ones

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    • Icon: Technical task Technical task
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
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      Smth like this. Note, it's a design proposal; feel free to come up with a better one.

      It's going to be used from both sides, implementations and public API

      public:

void setUserFrameRate(std::optional<qreal>) {
      m_userFrameRate = ...
      // maybe emit frameRateChanged
}
std::optional<qreal> frameRate() const {
      return m_userFrameRate ? m_userFrameRate : m_actualFrameRate;
}

std::optional<qreal> userFrameRate() const; // getter

protected:

// invoked from derived ones
void setActualFrameRate(std::optional<qreal> ) {
     m_actualFrameRate = ...
     // maybe emit frameRateChanged
}

      Implementations of QFFmpegSurfaceCaptureGrabber should consider capture.userFrameRate() in the constructor.
      After construction and deletion of the grabber, we should update QPlatfromSurfaceCapture::setActualFrameRate.

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            mikko.hallamaa Mikko Hallamaa
            artemiy Artem Dyomin
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              Created:
              Updated:

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