Method previousFrame

YUViewLib/src/ui/PlaybackController.cpp:269–274

}

void PlaybackController::previousFrame()
{
  this->pausePlayback();
  if (this->currentFrameIdx != this->ui.frameSlider->minimum())
    this->setCurrentFrameAndUpdate(this->currentFrameIdx - 1);
}

void PlaybackController::on_frameSlider_valueChanged(int value)
{