private async void MediaControl_SoundLevelChanged(object sender, Object e)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
if (Windows.Media.MediaControl.SoundLevel != Windows.Media.SoundLevel.Muted)
{
ScenarioReset();
}
else
{
if (m_bRecording)
{
ShowStatusMessage("Stopping Record on invisibility");
await m_mediaCaptureMgr.StopRecordAsync();
m_bRecording = false;
EnableButton(true, "StartStopRecord");
}
if (m_bPreviewing)
{
ShowStatusMessage("Stopping Preview on invisibility");
await m_mediaCaptureMgr.StopPreviewAsync();
m_bPreviewing = false;
EnableButton(true, "StartPreview");
previewElement2.Source = null;
}
}
});
}
// </SnippetMediaCaptureVideo_StartRecordCS>
// <SnippetMediaCaptureVideo_StopRecordCS>
// Stop the video capture.
private async void StopMediaCaptureSession()
{
await _mediaCapture.StopRecordAsync();
_recording = false;
(App.Current as App).IsRecording = false;
}
private async void ScenarioClose()
{
try
{
if (m_bRecording)
{
ShowStatusMessage("Stopping Record");
await m_mediaCaptureMgr.StopRecordAsync();
m_bRecording = false;
}
if (m_bPreviewing)
{
ShowStatusMessage("Stopping preview");
await m_mediaCaptureMgr.StopPreviewAsync();
m_bPreviewing = false;
}
if (m_mediaCaptureMgr != null)
{
ShowStatusMessage("Stopping Camera");
previewElement1.Source = null;
m_mediaCaptureMgr.Dispose();
}
}
catch (Exception e)
{
ShowExceptionMessage(e);
}
}
public async void RecordLimitationExceeded(Windows.Media.Capture.MediaCapture currentCaptureObject)
{
if (m_bRecording)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
try
{
//ShowStatusMessage("Stopping Record on exceeding max record duration");
await m_mediaCaptureMgr.StopRecordAsync();
m_bRecording = false;
// still no button for recording (aka. real time processing) hence the bool holders can record etc.
//btnStartStopRecord1.Content = "StartRecord";
canrecord = true;
//ShowStatusMessage("Stopped record on exceeding max record duration:" + m_recordStorageFile.Path);
if (!m_mediaCaptureMgr.MediaCaptureSettings.ConcurrentRecordAndPhotoSupported)
{
//if camera does not support record and Takephoto at the same time
//enable TakePhoto button again, after record finished
//will implement probably
//btnTakePhoto1.Content = "TakePhoto";
cantakephoto = true;
}
}
catch (Exception e)
{
//ShowExceptionMessage(e);
}
});
}
}
private async void ScenarioClose()
{
if (m_bRecording)
{
ShowStatusMessage("Stopping Record on invisibility");
await m_mediaCaptureMgr.StopRecordAsync();
m_bRecording = false;
EnableButton(true, "StartStopRecord");
m_mediaCaptureMgr.Dispose();
}
if (m_mediaCaptureMgr != null)
{
m_mediaCaptureMgr.Dispose();
}
}
// Stop the video capture
private async void StopMediaCaptureSession()
{
await mediaCapture.StopRecordAsync();
recording = false;
(App.Current as App).IsRecording = false;
//stop the preview
await mediaCapture.StopPreviewAsync();
}
private async void endRecord(object sender, RoutedEventArgs e)
{
if (isRecording)
{
await audioCapture.StopRecordAsync();
isRecording = false;
refreshUI();
outputTextBlock.Text = "Recording stopped.";
}
}
public async Task<RecordingToken> StartAsync()
{
var capture = new MediaCapture();
var initSettings = new MediaCaptureInitializationSettings();
initSettings.StreamingCaptureMode = StreamingCaptureMode.Audio;
await capture.InitializeAsync(initSettings);
var fileName = DateTimeOffset.Now.TimeOfDay.ToString().Replace(':', '_') + ".wav";
var file = await ApplicationData.Current.LocalFolder.CreateFileAsync(fileName);
var profile = MediaEncodingProfile.CreateWav(AudioEncodingQuality.Medium);
await capture.StartRecordToStorageFileAsync(profile, file);
return new RecordingToken(file.Path, async () =>
{
await capture.StopRecordAsync();
// It's important to dispose the capture device here to avoid application crash when using FileSavePicker afterwards
capture.Dispose();
});
}
async private void StopRecord_Click(object sender, RoutedEventArgs e)
{
await captureManager.StopRecordAsync();
}
private async void MediaCaptureOnRecordLimitationExceeded(MediaCapture sender)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async () =>
{
await sender.StopRecordAsync();
var warningMessage = new MessageDialog("The media recording has been stopped because you exceeded the maximum recording length.", "Recording Stoppped");
await warningMessage.ShowAsync();
});
}
//public void CreateProfile()
//{
// _profile = Windows.Media.MediaProperties.MediaEncodingProfile.CreateMp3(Windows.Media.MediaProperties.AudioEncodingQuality.Auto);
//}
private async void endRecord(object sender, RoutedEventArgs e)
{
await audioCapture.StopRecordAsync();
}
public void PrintMicrophoneSample()
{
MediaCapture capture;
IRandomAccessStream stream;
const int BufferSize = 64000;
bool recording;
float volume = 100;
capture = new MediaCapture();
stream = new InMemoryRandomAccessStream();
var captureInitSettings2 = new MediaCaptureInitializationSettings();
captureInitSettings2.StreamingCaptureMode = StreamingCaptureMode.Audio;
capture.InitializeAsync(captureInitSettings2).AsTask().Wait();
capture.AudioDeviceController.VolumePercent = volume;
MediaEncodingProfile profile = new MediaEncodingProfile();
AudioEncodingProperties audioProperties = AudioEncodingProperties.CreatePcm(16000, 1, 16);
profile.Audio = audioProperties;
profile.Video = null;
profile.Container = new ContainerEncodingProperties() { Subtype = MediaEncodingSubtypes.Wave };
capture.StartRecordToStreamAsync(profile, stream).GetResults();
recording = true;
// waste time
for (int i = 0; i < 5; i++)
{
i = i * 232323 + 89;// WriteLine(i);
}
capture.StopRecordAsync().GetResults();
byte[] wav = new byte[stream.Size];
stream.Seek(0);
stream.ReadAsync(wav.AsBuffer(), (uint)stream.Size, InputStreamOptions.None).GetResults();
int sum = 0;
for(int i = 0; i < wav.Count(); i++)
{
sum += (int) wav[i];
}
WriteLine((double) wav.Count() / sum);
}
private async void StartMediaCaptureRecord_Click(object sender, RoutedEventArgs e)
{
StartCaptureElementRecord.IsEnabled = false;
// Skip if no camera
var devices = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
if (devices.Count == 0)
{
return;
}
StorageFile destination = await KnownFolders.VideosLibrary.CreateFileAsync("VideoEffectsTestApp.MediaCapture.mp4", CreationCollisionOption.ReplaceExisting);
var capture = new MediaCapture();
await capture.InitializeAsync(new MediaCaptureInitializationSettings
{
StreamingCaptureMode = StreamingCaptureMode.Video
});
var definition = await CreateEffectDefinitionAsync(
(VideoEncodingProperties)capture.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoRecord)
);
await capture.AddEffectAsync(MediaStreamType.VideoRecord, definition.ActivatableClassId, definition.Properties);
await capture.StartRecordToStorageFileAsync(MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Qvga), destination);
await Task.Delay(3000);
await capture.StopRecordAsync();
StartCaptureElementRecord.IsEnabled = true;
}
/// <summary>
/// This method is called each time the motion sensor forwards data to the host.
///
/// Note that reading is relatively straight forward and follows the general WinRT paradigm of using events args
/// and reading from buffers.
/// </summary>
/// <param name="sender">The hidDevice that raised the event (the one that received the interrupt)</param>
/// <param name="eventArgs">Contains the HidInputReport that caused the interrupt</param>
private async void OnGeneralInterruptEvent(HidDevice sender, HidInputReportReceivedEventArgs eventArgs)
{
// Retrieve the sensor data
HidInputReport inputReport = eventArgs.Report;
IBuffer buffer = inputReport.Data;
DataReader dr = DataReader.FromBuffer(buffer);
byte[] bytes = new byte[inputReport.Data.Length];
dr.ReadBytes(bytes);
// Set the video length and delay values.
TimeSpan length = TimeSpan.FromSeconds(5); // Video length 5 seconds
TimeSpan delay = TimeSpan.FromSeconds(15); // Pause or delay 15 seconds
TimeSpan radioDelay = TimeSpan.FromMilliseconds(250); // Duration of radio-button highlight
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Briefly check the radio button to show that an event was fired
radio1.IsChecked = true;
});
// Create a threadpool timer which toggles the radio button on for the radioDelay interval
ThreadPoolTimer RadioButtonTimer = ThreadPoolTimer.CreateTimer(
async(source) =>
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Radio button is unchecked once duration expires
radio1.IsChecked = false;
});
}, radioDelay);
// The first byte contains the motion data
if ((bytes[1] == 1) && !Capture)
{
Capture = true;
// Create a threadpool timer which stops the video capture after "length" seconds
ThreadPoolTimer VideoStopTimer = ThreadPoolTimer.CreateTimer(
async(source) =>
{
await CaptureMgr.StopRecordAsync();
await rootPage.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
new DispatchedHandler(() =>
{
rootPage.NotifyUser("Video capture concluded.", NotifyType.StatusMessage);
}));
}, length);
// Create a threadpool timer which prevents false captures by pausing detection for "delay" seconds
ThreadPoolTimer CapturePauseTimer = ThreadPoolTimer.CreateTimer(
async(source) =>
{
Capture = false;
await rootPage.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
new DispatchedHandler(() =>
{
rootPage.NotifyUser("Presence sensor enabled.", NotifyType.StatusMessage);
}));
}, delay);
await rootPage.Dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
new DispatchedHandler(() =>
{
rootPage.NotifyUser("Video capture started.", NotifyType.StatusMessage);
}));
String fileName;
fileName = VIDEO_FILE_NAME;
StorageFile = await Windows.Storage.KnownFolders.VideosLibrary.CreateFileAsync(fileName, Windows.Storage.CreationCollisionOption.GenerateUniqueName);
MediaEncodingProfile recordProfile = MediaEncodingProfile.CreateMp4(Windows.Media.MediaProperties.VideoEncodingQuality.Auto);
await CaptureMgr.StartRecordToStorageFileAsync(recordProfile, StorageFile);
}
}