public async Task <bool> StartRecordingAsync()
{
if (Initialized && PreviewStarted && !RecordingStarted)
{
#if WINDOWS_PHONE_APP
MediaEncodingProfile recordProfile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.HD720p);
recordProfile.Video.FrameRate.Numerator = _hfrVideoEncodingProperties.FrameRate.Numerator;
recordProfile.Video.FrameRate.Denominator = _hfrVideoEncodingProperties.FrameRate.Denominator;
double factor = (double)(recordProfile.Video.FrameRate.Numerator) / (recordProfile.Video.FrameRate.Denominator * 4);
recordProfile.Video.Bitrate = (uint)(recordProfile.Video.Width * recordProfile.Video.Height * factor);
await MediaCapture.StartRecordToStreamAsync(recordProfile, _recordingStream);
#else
MediaEncodingProfile recordProfile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Auto);
await MediaCapture.StartRecordToStreamAsync(recordProfile, _recordingStream);
#endif
// Get camera's resolution
VideoEncodingProperties resolution =
(VideoEncodingProperties)_videoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoRecord);
ResolutionWidth = (int)resolution.Width;
ResolutionHeight = (int)resolution.Height;
Messenger.SettingsChangedFlag = true;
await MediaCapture.AddEffectAsync(RecordMediaStreamType, BufferTransformActivationId, Properties);
RecordingStarted = true;
}
return(RecordingStarted);
}
private async void InitializeFacialRecognition()
{
if (m_faceTracker == null)
{
m_faceTracker = await FaceTracker.CreateAsync();
}
m_mediaCapture = new MediaCapture();
MediaCaptureInitializationSettings settings = new MediaCaptureInitializationSettings();
settings.StreamingCaptureMode = StreamingCaptureMode.Video;
await m_mediaCapture.InitializeAsync(settings);
VideoDeviceController deviceController = m_mediaCapture.VideoDeviceController;
m_videoProperties = deviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview) as VideoEncodingProperties;
await m_mediaCapture.StartPreviewAsync();
TimeSpan timerInterval = TimeSpan.FromMilliseconds(66);
m_frameProcessingTimer = ThreadPoolTimer.CreatePeriodicTimer(new TimerElapsedHandler(ProcessCurrentVideoFrame), timerInterval);
}