private MediaEncodingProfile GetEncodingProfile()
{
var profile = new MediaEncodingProfile();
var containerEncoding = new ContainerEncodingProperties
{
Subtype = MediaEncodingSubtypes.Mpeg4
};
const uint bitsPerKiloBit = 1000;
var videoEncoding = new VideoEncodingProperties
{
Subtype = MediaEncodingSubtypes.H264,
Width = Configuration.Width,
Height = Configuration.Height,
Bitrate = Configuration.KiloBitsPerSecond * bitsPerKiloBit,
FrameRate = { Denominator = 1, Numerator = Configuration.FramesPerSecond },
PixelAspectRatio = { Denominator = 1, Numerator = 1 }
};
profile.Container = containerEncoding;
profile.Video = videoEncoding;
return(profile);
}
//<SnippetGetMediaEncodingProfile>
public MediaEncodingProfile CreateProfileForTranscoder(VideoStreamDescriptor videoStream1, VideoStreamDescriptor videoStream2, AudioStreamDescriptor audioStream, TimedMetadataStreamDescriptor timedMetadataStream)
{
ContainerEncodingProperties container = new ContainerEncodingProperties()
{
Subtype = MediaEncodingSubtypes.Mpeg4
};
MediaEncodingProfile profile = new MediaEncodingProfile()
{
Container = container
};
VideoStreamDescriptor encodingVideoStream1 = videoStream1.Copy();
encodingVideoStream1.EncodingProperties.Subtype = MediaEncodingSubtypes.H264;
encodingVideoStream1.Label = videoStream1.Name;
VideoStreamDescriptor encodingVideoStream2 = videoStream2.Copy();
encodingVideoStream2.EncodingProperties.Subtype = MediaEncodingSubtypes.H264;
encodingVideoStream2.Label = videoStream2.Name;
AudioStreamDescriptor encodingAudioStream = audioStream.Copy();
encodingAudioStream.EncodingProperties.Subtype = MediaEncodingSubtypes.Ac3;
encodingAudioStream.Label = audioStream.Name;
TimedMetadataStreamDescriptor encodingTimedMetadataStream = timedMetadataStream.Copy();
profile.SetTimedMetadataTracks(new TimedMetadataStreamDescriptor[] { encodingTimedMetadataStream });
profile.SetVideoTracks(new VideoStreamDescriptor[] { encodingVideoStream1, encodingVideoStream2 });
profile.SetAudioTracks(new AudioStreamDescriptor[] { encodingAudioStream });
return(profile);
}
public async Task Record()
{
if (IsRecording)
{
throw new InvalidOperationException("Recording already in progress!");
}
_memoryBuffer = new InMemoryRandomAccessStream();
_mediaCapture = new MediaCapture();
MediaCaptureInitializationSettings settings =
new MediaCaptureInitializationSettings
{
StreamingCaptureMode = StreamingCaptureMode.Audio
};
await _mediaCapture.InitializeAsync(settings);
MediaEncodingProfile recordProfile = new MediaEncodingProfile();
AudioEncodingProperties audioProp = new AudioEncodingProperties();
audioProp.ChannelCount = 1;
audioProp.BitsPerSample = 16;
audioProp.SampleRate = 8000;
audioProp.Bitrate = 16;
audioProp.Subtype = MediaEncodingSubtypes.AmrNb;
recordProfile.Audio = audioProp;
ContainerEncodingProperties containProp = new ContainerEncodingProperties();
containProp.Subtype = MediaEncodingSubtypes.Mpeg4;
recordProfile.Container = containProp;
recordProfile.Video = null;
//await _mediaCapture.StartRecordToStorageFileAsync(recordProfile, fileBuffer);
StorageFile amr = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/a.amr"));
var pro = await MediaEncodingProfile.CreateFromFileAsync(amr);
pro.Container.Subtype = MediaEncodingSubtypes.Mpeg4;
var pro2 = MediaEncodingProfile.CreateWma(AudioEncodingQuality.Low);
await _mediaCapture.StartRecordToStreamAsync(pro2, _memoryBuffer);
IsRecording = true;
}
