public async Task StartAsync()
{
if (m_mediaCapture != null)
{
throw new InvalidOperationException("Cannot start while recording");
}
m_mediaCapture = new MediaCapture();
await m_mediaCapture.InitializeAsync(new MediaCaptureInitializationSettings()
{
MediaCategory = MediaCategory.Speech,
AudioProcessing = AudioProcessing.Default,
MemoryPreference = MediaCaptureMemoryPreference.Auto,
SharingMode = MediaCaptureSharingMode.SharedReadOnly,
StreamingCaptureMode = StreamingCaptureMode.Audio,
});
m_opusSink = await OpusCodec.CreateMediaSinkAsync(m_file);
var wawEncodingProfile = MediaEncodingProfile.CreateWav(AudioEncodingQuality.High);
wawEncodingProfile.Audio.BitsPerSample = 16;
wawEncodingProfile.Audio.SampleRate = 48000;
wawEncodingProfile.Audio.ChannelCount = 1;
await m_mediaCapture.StartRecordToCustomSinkAsync(wawEncodingProfile, m_opusSink);
}
/// <summary>
/// Starts media recording asynchronously
/// </summary>
/// <param name="encodingProfile">
/// Encoding profile used for the recording session
/// </param>
public async Task StartRecordingAsync(MediaEncodingProfile encodingProfile)
{
try
{
// We cannot start recording twice.
if (mediaSink != null && recordingStarted)
{
throw new InvalidOperationException("Recording already started.");
}
// Release sink if there is one already.
CleanupSink();
// Create new sink
mediaSink = new StspMediaSinkProxy();
mediaSink.IncomingConnectionEvent += mediaSink_IncomingConnectionEvent;
var mfExtension = await mediaSink.InitializeAsync(encodingProfile.Audio, encodingProfile.Video);
await mediaCapture.StartRecordToCustomSinkAsync(encodingProfile, mfExtension);
recordingStarted = true;
}
catch (Exception e)
{
CleanupSink();
throw e;
}
}
public async Task StartAsync()
{
m_isRecording = true;
if (m_isVideo)
{
var profile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Auto);
var rotationAngle = CameraRotationHelper.ConvertSimpleOrientationToClockwiseDegrees(_rotationHelper.GetCameraCaptureOrientation());
profile.Video.Properties.Add(new Guid("C380465D-2271-428C-9B83-ECEA3B4A85C1"), PropertyValue.CreateInt32(rotationAngle));
m_lowLag = await m_mediaCapture.PrepareLowLagRecordToStorageFileAsync(profile, m_file);
await m_lowLag.StartAsync();
}
else
{
var wavEncodingProfile = MediaEncodingProfile.CreateWav(AudioEncodingQuality.High);
wavEncodingProfile.Audio.BitsPerSample = 16;
wavEncodingProfile.Audio.SampleRate = 48000;
wavEncodingProfile.Audio.ChannelCount = 1;
m_opusSink = await OpusCodec.CreateMediaSinkAsync(m_file);
await m_mediaCapture.StartRecordToCustomSinkAsync(wavEncodingProfile, m_opusSink);
}
}
public async Task StartAsync()
{
m_isRecording = true;
if (m_isVideo)
{
var profile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Vga);
m_lowLag = await m_mediaCapture.PrepareLowLagRecordToStorageFileAsync(profile, m_file);
await m_lowLag.StartAsync();
}
else
{
var wavEncodingProfile = MediaEncodingProfile.CreateWav(AudioEncodingQuality.High);
wavEncodingProfile.Audio.BitsPerSample = 16;
wavEncodingProfile.Audio.SampleRate = 48000;
wavEncodingProfile.Audio.ChannelCount = 1;
m_opusSink = await OpusCodec.CreateMediaSinkAsync(m_file);
await m_mediaCapture.StartRecordToCustomSinkAsync(wavEncodingProfile, m_opusSink);
}
}
