private void OnReadyToStart()
        {
            activeStreamDurationSec = (mPlayer.videoPlayer.frameCount / mPlayer.videoPlayer.frameRate);

            mPlayer.Pause();

            frameReadyHandler = (source, index) => { OnFrameReady(); };
            mPlayer.videoPlayer.frameReady          += frameReadyHandler;
            mPlayer.videoPlayer.sendFrameReadyEvents = true;
        }
        private void PlayStreamFile(float timeStampSec)
        {
            StreamState = ExpoScheduledStreamState.WaitAcyncOperation;

            mPlayer.Seek(timeStampSec);

            seekReadyHandler = (source, index) => { OnSeekReady(); };

            mPlayer.videoPlayer.sendFrameReadyEvents = true;
            mPlayer.videoPlayer.frameReady          += seekReadyHandler;
        }