protected override IEnumerable<Datum> Poll(CancellationToken cancellationToken)
{
MediaRecorder recorder = null;
try
{
recorder = new MediaRecorder();
recorder.SetAudioSource(AudioSource.Mic);
recorder.SetOutputFormat(OutputFormat.ThreeGpp);
recorder.SetAudioEncoder(AudioEncoder.AmrNb);
recorder.SetOutputFile("/dev/null");
recorder.Prepare();
recorder.Start();
// mark start time of amplitude measurement -- MaxAmplitude is always computed from previous call to MaxAmplitude
int dummy = recorder.MaxAmplitude;
Thread.Sleep(SampleLengthMS);
return new Datum[] { new SoundDatum(DateTimeOffset.UtcNow, 20 * Math.Log10(recorder.MaxAmplitude)) }; // http://www.mathworks.com/help/signal/ref/mag2db.html
}
finally
{
if (recorder != null)
{
try { recorder.Stop(); }
catch (Exception) { }
try { recorder.Release(); }
catch (Exception) { }
}
}
}
public void SurfaceCreated(ISurfaceHolder holder)
{
var outputFile = System.IO.Path.Combine(Android.OS.Environment.ExternalStorageDirectory.ToString(),
"myvideooutputfile.mp4");
if (!recording)
{
mediaRecorder = new MediaRecorder();
//correctCamera();
//if (camera != null)
// mediaRecorder.SetCamera(camera);
mediaRecorder.SetAudioSource(AudioSource.Mic);
mediaRecorder.SetVideoSource(VideoSource.Camera);
mediaRecorder.SetOutputFormat(OutputFormat.ThreeGpp);
mediaRecorder.SetAudioEncoder(AudioEncoder.Aac);
mediaRecorder.SetVideoEncoder(VideoEncoder.Mpeg4Sp);
if (System.IO.File.Exists(outputFile))
System.IO.File.Delete(outputFile);
System.IO.File.Create(outputFile);
CamcorderProfile camProf = CamcorderProfile.Get(CamcorderQuality.Low);
fps = camProf.VideoFrameRate;
mediaRecorder.SetOutputFile(outputFile);
mediaRecorder.SetPreviewDisplay(holder.Surface);
mediaRecorder.Prepare();
} else
{
mediaPlayer.SetDisplay(holder);
mediaPlayer.SetDataSource(outputFile);
mediaPlayer.Prepared += new EventHandler(mediaPlayer_Prepared);
mediaPlayer.PrepareAsync();
}
}
public bool RecordAudio()
{
if (string.IsNullOrEmpty(folder) || string.IsNullOrEmpty(directoryname))
{
return false;
}
//--test
// get all under root:
/*
var directories = Directory.EnumerateDirectories("./");
foreach (var directory in directories)
{
Console.WriteLine(directory);
}
*/
// read text file:
/*
var text = File.ReadAllText("TestData/ReadMe.txt");
Console.WriteLine(text);
*/
// xml stream reader:
/*
using (TextReader reader = new StreamReader("./TestData/test.xml"))
{
System.Xml.Serialization.XmlSerializer serializer = new System.Xml.Serialization.XmlSerializer(typeof(MyObject));
var xml = (MyObject)serializer.Deserialize(reader);
}
*/
try
{
Directory.CreateDirectory(directoryname);
fileName = string.Format("Audio{0}.aac", DateTime.Now.ToString("yyyyMMddHHmmss"));
path = Path.Combine(directoryname, fileName);
_recorder = new MediaRecorder();
_recorder.Reset();
_recorder.SetAudioSource(AudioSource.Mic);
_recorder.SetOutputFormat(OutputFormat.Default);
_recorder.SetAudioEncoder(AudioEncoder.Aac);
_recorder.SetOutputFile(path);
_recorder.Prepare();
_recorder.Start();
return true;
}
catch (System.Exception ex)
{
_recorder = null;
fileName = string.Empty;
var test = ex.Message;
return false;
}
}
public void RecordSound()
{
_url = StorageService.GenerateFilename(StorageType.Sound, "3gpp");
_recorder = new MediaRecorder();
_recorder.SetAudioSource(AudioSource.Mic);
_recorder.SetOutputFormat(OutputFormat.ThreeGpp);
_recorder.SetAudioEncoder(AudioEncoder.AmrNb);
_recorder.SetOutputFile(_url);
_recorder.Prepare();
_recorder.Start();
}
public void SetUpRecoder()
{
try
{
if (null == activity)
{
return;
}
if (userResponse == UserResponse.Video)
{
mediaRecorder = new MediaRecorder();
mediaRecorder.Reset();
mediaRecorder.SetAudioSource(AudioSource.Mic);
mediaRecorder.SetVideoSource(VideoSource.Surface);
mediaRecorder.SetOutputFormat(OutputFormat.Mpeg4);
mediaRecorder.SetOutputFile(path + "/test.mp4");
mediaRecorder.SetVideoEncodingBitRate(10000000);
mediaRecorder.SetVideoFrameRate(30);
mediaRecorder.SetVideoSize(videoSize.Width, videoSize.Height);
mediaRecorder.SetVideoEncoder(VideoEncoder.H264);
mediaRecorder.SetAudioEncoder(AudioEncoder.Aac);
//int rotation = (int)activity.WindowManager.DefaultDisplay.Rotation;
//int orientation = ORIENTATIONS.Get(rotation);
if (LensFacing == CameraFacing.BACK)
{
mediaRecorder.SetOrientationHint(90);
}
else
{
mediaRecorder.SetOrientationHint(270);
}
mediaRecorder.SetMaxDuration(30000);
mediaRecorder.Prepare();
}
else
{
mediaRecorder = new MediaRecorder();
mediaRecorder.Reset();
mediaRecorder.SetAudioSource(AudioSource.Mic);
mediaRecorder.SetOutputFormat(OutputFormat.ThreeGpp);
mediaRecorder.SetAudioEncoder(AudioEncoder.AmrNb);
mediaRecorder.SetOutputFile(path + "/test.mp3");
mediaRecorder.SetMaxDuration(30000);
mediaRecorder.Prepare();
}
}
catch (System.Exception ex)
{
}
}
public void SurfaceCreated(ISurfaceHolder holder)
{
mediaRecord = new MediaRecorder ();
mediaRecord.SetAudioSource (AudioSource.Mic);
mediaRecord.SetVideoSource (VideoSource.Camera);
mediaRecord.SetOutputFormat (OutputFormat.Default);
mediaRecord.SetAudioEncoder (AudioEncoder.Default);
mediaRecord.SetVideoEncoder (VideoEncoder.Default);
System.IO.File.Create (videoFilename);
mediaRecord.SetOutputFile (videoFilename);
mediaRecord.SetPreviewDisplay (holder.Surface);
mediaRecord.Prepare ();
}
protected override void OnCreate (Bundle bundle)
{
base.OnCreate (bundle);
SetContentView (Resource.Layout.video);
string path = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath + "/test.mp4";
var record = FindViewById<Button> (Resource.Id.Record);
var stop = FindViewById<Button> (Resource.Id.Stop);
var play = FindViewById<Button> (Resource.Id.Play);
var video = FindViewById<VideoView> (Resource.Id.SampleVideoView);
record.Click += delegate {
video.StopPlayback ();
recorder = new MediaRecorder ();
recorder.SetVideoSource (VideoSource.Camera);
recorder.SetAudioSource (AudioSource.Mic);
recorder.SetOutputFormat (OutputFormat.Default);
recorder.SetVideoEncoder (VideoEncoder.Default);
recorder.SetAudioEncoder (AudioEncoder.Default);
recorder.SetOutputFile (path);
recorder.SetPreviewDisplay (video.Holder.Surface);
recorder.Prepare ();
recorder.Start ();
};
stop.Click += delegate {
if (recorder != null) {
recorder.Stop ();
recorder.Release ();
}
};
play.Click += delegate {
var uri = Android.Net.Uri.Parse (path);
video.SetVideoURI (uri);
video.Start ();
};
}
public void SetVideo()
{
var recorder = new Android.Media.MediaRecorder();
recorder.SetAudioSource(AudioSource.Mic);
recorder.SetVideoSource(VideoSource.Surface);
recorder.SetOutputFormat(OutputFormat.Mpeg4);
recorder.SetVideoEncodingBitRate(10000000);
recorder.SetVideoFrameRate(30);
recorder.SetVideoEncoder(VideoEncoder.H264);
recorder.SetAudioEncoder(AudioEncoder.Aac);
recorder.SetVideoSize(_previewSize.Width, _previewSize.Height);
SurfaceOrientation rotation = windowManager.DefaultDisplay.Rotation;
recorder.SetOrientationHint();
var pfd = new ParcelFileDescriptor(ParcelFileDescriptor.FromSocket(new Socket()));
recorder.SetOutputFile(pfd.FileDescriptor);
#region sample
/*mediaRecorder.SetAudioSource(AudioSource.Mic);
* mediaRecorder.SetVideoSource(VideoSource.Surface);
* mediaRecorder.SetOutputFormat(OutputFormat.Mpeg4);
* mediaRecorder.SetOutputFile(GetVideoFile(Activity).AbsolutePath);
* mediaRecorder.SetVideoEncodingBitRate(10000000);
* mediaRecorder.SetVideoFrameRate(30);
* mediaRecorder.SetVideoSize(videoSize.Width, videoSize.Height);
* mediaRecorder.SetVideoEncoder(VideoEncoder.H264);
* mediaRecorder.SetAudioEncoder(AudioEncoder.Aac);
* int rotation = (int)Activity.WindowManager.DefaultDisplay.Rotation;
* int orientation = ORIENTATIONS.Get(rotation);
* mediaRecorder.SetOrientationHint(orientation); //
* mediaRecorder.Prepare();*/
#endregion
}
public AudioRecorder(string filename)
{
if (filename == "")
{
#if DEBUG
System.Diagnostics.Debug.WriteLine("filename passed in is NULL");
#endif
return;
}
if (System.IO.File.Exists(filename))
System.IO.File.Delete(filename);
recorder = new MediaRecorder();
recorder.SetAudioSource(AudioSource.Mic);
recorder.SetOutputFormat(OutputFormat.ThreeGpp);
recorder.SetAudioEncoder(AudioEncoder.Aac);
tempFilename = System.IO.Path.Combine(wowZapp.LaffOutOut.Singleton.ContentDirectory, "tempfile.3gp");
outputFilename = filename;
#if (DEBUG)
System.Diagnostics.Debug.WriteLine("filename = {0}", filename);
#endif
f = System.IO.File.Create(tempFilename);
recorder.SetOutputFile(tempFilename);
recorder.Prepare();
}
private void startRecordingVideo() {
if (null == Activity)
return;
media_recorder = new MediaRecorder ();
File file = getVideoFile (Activity);
try {
//UI
button_video.SetText (Resource.String.stop);
is_recording_video = true;
//Configure the MediaRecorder
media_recorder.SetAudioSource (AudioSource.Mic);
media_recorder.SetVideoSource (VideoSource.Surface);
media_recorder.SetOutputFormat (OutputFormat.Mpeg4);
media_recorder.SetOutputFile (System.IO.Path.GetFullPath (file.ToString()));
media_recorder.SetVideoEncodingBitRate (10000000);
media_recorder.SetVideoFrameRate (30);
media_recorder.SetVideoSize (1440, 1080);
media_recorder.SetVideoEncoder (VideoEncoder.H264);
media_recorder.SetAudioEncoder (AudioEncoder.Aac);
int rotation = (int)Activity.WindowManager.DefaultDisplay.Rotation;
int orientation = ORIENTATIONS.Get (rotation);
media_recorder.SetOrientationHint (orientation);
media_recorder.Prepare ();
Surface surface = media_recorder.Surface;
//Set up CaptureRequest
builder = camera_device.CreateCaptureRequest (CameraTemplate.Record);
builder.AddTarget (surface);
var preview_surface = new Surface (texture_view.SurfaceTexture);
builder.AddTarget (preview_surface);
var surface_list = new List<Surface>();
surface_list.Add(surface);
surface_list.Add(preview_surface);
camera_device.CreateCaptureSession(surface_list,new RecordingCaptureStateListener(this),null);
} catch (IOException e) {
e.PrintStackTrace ();
} catch (CameraAccessException e) {
e.PrintStackTrace ();
} catch (IllegalStateException e) {
e.PrintStackTrace ();
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate (bundle);
// Set our view from the "main" layout resource
SetContentView (Resource.Layout.Memory);
ImageButton record = FindViewById<ImageButton> (Resource.Id.vid);
ImageButton btnNormalDialog = FindViewById<ImageButton> (Resource.Id.img);
_imageView = FindViewById<ImageView> (Resource.Id.imgv);
btnNormalDialog.Click += ButtonOnClick;
mToolbar = FindViewById<SupportToolbar>(Resource.Id.toolbar);
mDrawerLayout = FindViewById<DrawerLayout>(Resource.Id.drawer_layout);
mLeftDrawer = FindViewById<ListView>(Resource.Id.left_drawer);
mLeftDrawer.Tag = 0;
SetSupportActionBar(mToolbar);
mLeftDataSet = new List<string>();
mLeftDataSet.Add ("Left Item 1");
mLeftDataSet.Add ("Left Item 2");
mLeftAdapter = new ArrayAdapter<string>(this, Android.Resource.Layout.SimpleListItem1, mLeftDataSet);
mLeftDrawer.Adapter = mLeftAdapter;
mDrawerToggle = new MyActionBarDrawerToggle(
this, //Host Activity
mDrawerLayout, //DrawerLayout
Resource.String.openDrawer, //Opened Message
Resource.String.closeDrawer //Closed Message
);
mDrawerLayout.SetDrawerListener(mDrawerToggle);
SupportActionBar.SetHomeButtonEnabled(true);
SupportActionBar.SetDisplayShowTitleEnabled(true);
mDrawerToggle.SyncState();
if (bundle != null)
{
if (bundle.GetString("DrawerState") == "Opened")
{
SupportActionBar.SetTitle(Resource.String.openDrawer);
}
else
{
SupportActionBar.SetTitle(Resource.String.closeDrawer);
}
}
else
{
//This is the first the time the activity is ran
SupportActionBar.SetTitle(Resource.String.closeDrawer);
}
VideoView video = FindViewById<VideoView> (Resource.Id.vidv);
_button = FindViewById<ImageButton> (Resource.Id.mica);
string path1 = Environment.ExternalStorageDirectory.AbsolutePath + "/test.mp4";
_button.Click += delegate {
if (count == 1) {
_recorder.SetAudioSource (AudioSource.Mic);
_recorder.SetOutputFormat (OutputFormat.ThreeGpp);
_recorder.SetAudioEncoder (AudioEncoder.AmrNb);
_recorder.SetOutputFile (path1);
_recorder.Prepare ();
_recorder.Start ();
Toast toast = Toast.MakeText (this , "Audio Recording", ToastLength.Short);
toast.Show ();
count ++;
} else if (count == 2) {
_recorder.Stop();
_recorder.Release ();
count = 0;
Toast toast = Toast.MakeText (this , "Recording Stopped", ToastLength.Short);
toast.Show ();
}
};
record.Click += delegate {
video.StopPlayback ();
if(c1 == 1)
{
_recorder = new MediaRecorder ();
_recorder.SetVideoSource (VideoSource.Camera);
_recorder.SetAudioSource (AudioSource.Mic);
_recorder.SetOutputFormat (OutputFormat.Default);
_recorder.SetVideoEncoder (VideoEncoder.Default);
_recorder.SetAudioEncoder (AudioEncoder.Default);
_recorder.SetOutputFile (path1);
_recorder.SetPreviewDisplay (video.Holder.Surface);
_recorder.Prepare ();
_recorder.Start ();
c1++;
}
else if(c1 == 2){
if (_recorder != null)
{
_recorder.Stop ();
_recorder.Release ();
c1 = 0;
}
}
};
}
public void StartRecording()
{
var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
_recordedFileName = documents + File.PathSeparator + Guid.NewGuid() + ".mp4";
ClearMediaRecorder();
_mediaRecorder = new MediaRecorder();
_mediaRecorder.SetAudioSource(AudioSource.Default);
_mediaRecorder.SetOutputFormat(OutputFormat.Mpeg4);
_mediaRecorder.SetAudioEncoder(AudioEncoder.Aac);
_mediaRecorder.SetOutputFile(_recordedFileName);
_mediaRecorder.Prepare();
_mediaRecorder.Start();
}
//Used for entering the Mandarin_ma speech processing screen
void HandleMandarin_Ma_Male_Select()
{
SetContentView (Resource.Layout.Mandarin_Mother_Male);
string RecordPath = "/sdcard/Recording.mp3";
//string RecordPath = Environment.getExternalStorageDirectory ()
// .getAbsolutePath () + "/Recording.mp3";
//string RecordPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath + "/Recording.3gpp";
//string RecordPath = this.file.getAbsolutePath().substring(8)
Button PlayStock = FindViewById<Button> (Resource.Id.PlayMa);
PlayBack = FindViewById<Button> (Resource.Id.PlayBack);
Button BackToMandarin = FindViewById<Button> (Resource.Id.BackToMandarin);
RecordVoice = FindViewById<Button> (Resource.Id.Record);
StopRecord = FindViewById<Button> (Resource.Id.Stop);
StockPlayer = MediaPlayer.Create(this, Resource.Raw.mother);
_recorder = new MediaRecorder ();
_player = new MediaPlayer ();
//Click Event Handlers
PlayStock.Click += delegate {
StockPlayer.Start();
};
RecordVoice.Click += delegate {
RecordVoice.Enabled = !RecordVoice.Enabled;
StopRecord.Enabled = !StopRecord.Enabled;
if (PlayBack.Enabled==true){
PlayBack.Enabled = false;
}
_recorder.SetAudioSource (AudioSource.Mic);
_recorder.SetOutputFormat (OutputFormat.Mpeg4);
_recorder.SetOutputFile(RecordPath);
_recorder.SetAudioEncoder (AudioEncoder.Aac);
_recorder.Prepare();
_recorder.Start ();
};
//Stops recording
StopRecord.Click += delegate {
StopRecord.Enabled =! StopRecord.Enabled;
if (PlayBack.Enabled==false){
PlayBack.Enabled = true;
}
_recorder.Stop ();
_recorder.Reset ();
/* For instant playback
_player.SetDataSource (RecordPath);
_player.Prepare ();
_player.Start ();
*/
RecordVoice.Enabled = !RecordVoice.Enabled;
};
PlayBack.Click += delegate {
RecordPlayer = new MediaPlayer ();
RecordPlayer.SetDataSource (RecordPath);
RecordPlayer.Prepare ();
RecordPlayer.Start ();
};
BackToMandarin.Click += delegate {
HandleMandarinSelect ();
};
}