private async Task RecordVideo()
{
if (!(Element as VideoCameraPage).IsRecording)
{
string filepath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
string filename = System.IO.Path.Combine(filepath, "video.mp4");
if (File.Exists(filename))
{
File.Delete(filename);
}
recorder = new MediaRecorder();
camera.Unlock();
recorder.SetCamera(camera);
recorder.SetVideoSource(VideoSource.Camera);
recorder.SetAudioSource(AudioSource.Mic);
recorder.SetProfile(CamcorderProfile.Get(0, CamcorderQuality.High));
//recorder.SetVideoEncoder(VideoEncoder.Default);
//recorder.SetAudioEncoder(AudioEncoder.Default);
//recorder.SetOutputFormat(OutputFormat.Mpeg4);
recorder.SetOutputFile(filename);
recorder.Prepare();
recorder.Start();
(Element as VideoCameraPage).IsRecording = true;
}
}
public void SurfaceCreated(ISurfaceHolder holder)
{
//If authorisation not granted for camera
if (ContextCompat.CheckSelfPermission(CurrentContext, Manifest.Permission.Camera) != Permission.Granted)
{
//ask for authorisation
ActivityCompat.RequestPermissions(CurrentContext, new System.String[] { Manifest.Permission.Camera }, 50);
}
else
{
if (camera != null)
{
camera.Release();
camera = null;
}
camera = Android.Hardware.Camera.Open();
camera.SetDisplayOrientation(90);
Parameters parameters = camera.GetParameters();
parameters.FocusMode = Parameters.FocusModeContinuousVideo;
camera.SetParameters(parameters);
camera.SetPreviewDisplay(holder);
camera.StartPreview();
initRecorder();
camera.Unlock();
}
prepareRecorder();
}
public void OnPictureTaken(byte[] data, Camera camera)
{
if (data != null)
{
Photo = data;
_camera.Unlock();
_camera.StopPreview();
_camera.Release();
}
}
private void InitCamera()
{
try
{
camera = Android.Hardware.Camera.Open();
camera.SetDisplayOrientation(90);
camera.Unlock();
}
catch { }
}
private void prepare()
{
if (recorder == null)
{
recorder = new MediaRecorder();
}
recorder.Reset();
if (camera != null)
{
camera.Unlock();
recorder.SetCamera(camera);
}
recorder.SetVideoSource(VideoSource.Camera);
recorder.SetAudioSource(AudioSource.Camcorder);
recorder.SetOutputFormat(OutputFormat.Mpeg4);
recorder.SetVideoEncoder(VideoEncoder.H264);
recorder.SetAudioEncoder(AudioEncoder.Aac);
recorder.SetOrientationHint(90);
recorder.SetOutputFile(savePath);
recorder.SetMaxDuration(10 * 1000);
recorder.SetMaxFileSize(5 * 1000 * 1000);
recorder.SetVideoEncodingBitRate(2 * 1024 * 1024);
if (supportFrameRate > 0)
{
recorder.SetVideoFrameRate(supportFrameRate);
}
//recorder.SetPreviewDisplay(vv.Holder.Surface);
if (videoSizeList != null && videoSizeList.Count > 0)
{
recorder.SetVideoSize(videoSizeList[bestIndex].Width, videoSizeList[bestIndex].Height);
}
try
{
recorder.Prepare();
}
catch (Exception e)
{
Console.Out.WriteLine("===prepare error:" + e);
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
var metrics = new DisplayMetrics();
WindowManager.DefaultDisplay.GetRealMetrics(metrics);
ScreenX = metrics.WidthPixels;
ScreenY = metrics.HeightPixels;
number = 0;
SetContentView(Resource.Layout.CameraTakePicScreen);
isRunning = false;
var header = FindViewById<TextView>(Resource.Id.txtFirstScreenHeader);
var btns = FindViewById<ImageView>(Resource.Id.imgNewUserHeader);
var relLayout = FindViewById<RelativeLayout>(Resource.Id.relativeLayout1);
ImageHelper.setupTopPanel(btns, header, relLayout, header.Context);
Header.headertext = Application.Context.Resources.GetString(Resource.String.photoTitle);
Header.fontsize = 32f;
ImageHelper.fontSizeInfo(header.Context);
header.SetTextSize(Android.Util.ComplexUnitType.Dip, Header.fontsize);
header.Text = Header.headertext;
var surface = FindViewById<SurfaceView>(Resource.Id.surfaceCameraView);
holder = surface.Holder;
holder.AddCallback(this);
context = surface.Context;
var takePicture = FindViewById<ImageButton>(Resource.Id.btnCamera);
takePicture.Tag = 1;
var flipView = FindViewById<ImageButton>(Resource.Id.imgFlipView);
flipView.Tag = 2;
var returnBack = FindViewById<ImageButton>(Resource.Id.imgBack);
returnBack.Tag = 0;
var bottom = FindViewById<LinearLayout>(Resource.Id.bottomHolder);
var btn = new ImageButton[3];
btn[0] = returnBack;
btn[1] = takePicture;
btn[2] = flipView;
ImageHelper.setupButtonsPosition(btn, bottom, context);
var cameraInfo = new Android.Hardware.Camera.CameraInfo();
camera = null;
int cameraCount = Android.Hardware.Camera.NumberOfCameras;
if (cameraCount == 1)
flipView.Visibility = ViewStates.Invisible;
else
{
flipView.Click += delegate
{
if (isRunning)
{
camera.StopPreview();
isRunning = false;
camera.Unlock();
if (cameraCount > 1 && camID < cameraCount - 1)
camID++;
else
camID--;
camera = Android.Hardware.Camera.Open(camID);
isRunning = true;
camera.Lock();
camera.StartPreview();
}
};
}
takePicture.Click += delegate
{
var p = camera.GetParameters();
p.PictureFormat = Android.Graphics.ImageFormatType.Jpeg;
camera.SetParameters(p);
camera.TakePicture(this, this, this);
};
returnBack.Click += (object sender, EventArgs e) =>
{
var resultData = new Intent();
resultData.PutExtra("filename", fullFilename);
SetResult(!string.IsNullOrEmpty(fullFilename) ? Result.Ok : Result.Canceled, resultData);
Finish();
};
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
number = 0;
SetContentView(Resource.Layout.CameraTakePicScreen);
isRunning = false;
TextView header = FindViewById<TextView>(Resource.Id.txtFirstScreenHeader);
ImageView btns = FindViewById<ImageView>(Resource.Id.imgNewUserHeader);
RelativeLayout relLayout = FindViewById<RelativeLayout>(Resource.Id.relativeLayout1);
ImageHelper.setupTopPanel(btns, header, relLayout, header.Context);
Header.headertext = Application.Context.Resources.GetString(Resource.String.photoTitle);
Header.fontsize = 36f;
ImageHelper.fontSizeInfo(header.Context);
header.SetTextSize(Android.Util.ComplexUnitType.Dip, Header.fontsize);
header.Text = Header.headertext;
SurfaceView surface = FindViewById<SurfaceView>(Resource.Id.surfaceCameraView);
holder = surface.Holder;
holder.AddCallback(this);
holder.SetType(Android.Views.SurfaceType.PushBuffers);
context = surface.Context;
ImageButton takePicture = FindViewById<ImageButton>(Resource.Id.btnCamera);
takePicture.Tag = 1;
ImageButton flipView = FindViewById<ImageButton>(Resource.Id.imgFlipView);
flipView.Tag = 2;
ImageButton returnBack = FindViewById<ImageButton>(Resource.Id.imgBack);
returnBack.Tag = 0;
LinearLayout bottom = FindViewById<LinearLayout>(Resource.Id.bottomHolder);
ImageButton[] btn = new ImageButton[3];
btn [0] = returnBack;
btn [1] = takePicture;
btn [2] = flipView;
ImageHelper.setupButtonsPosition(btn, bottom, context);
int back = (int)Android.Hardware.CameraFacing.Back;
int front = (int)Android.Hardware.CameraFacing.Front;
Android.Hardware.Camera.CameraInfo cameraInfo = new Android.Hardware.Camera.CameraInfo();
camera = null;
int cameraCount = Android.Hardware.Camera.NumberOfCameras;
if (cameraCount == 1)
flipView.Visibility = ViewStates.Invisible;
else
{
flipView.Click += delegate
{
if (isRunning)
{
camera.StopPreview();
isRunning = false;
camera.Unlock();
//camera.Release();
if (cameraCount > 1 && camID < cameraCount - 1)
camID++;
else
camID--;
camera = Android.Hardware.Camera.Open(camID);
isRunning = true;
camera.Lock();
camera.StartPreview();
}
};
}
takePicture.Click += delegate
{
Android.Hardware.Camera.Parameters p = camera.GetParameters();
p.PictureFormat = Android.Graphics.ImageFormatType.Jpeg;
camera.SetParameters(p);
camera.TakePicture(this, this, this);
};
returnBack.Click += (object sender, EventArgs e) =>
{
Intent resultData = new Intent();
resultData.PutExtra("filename", fullFilename);
if (fullFilename != "")
SetResult(Result.Ok, resultData);
else
SetResult(Result.Canceled, resultData);
Finish();
};
}
protected override void OnElementChanged(ElementChangedEventArgs <PocketPro.CameraPreview> e)
{
base.OnElementChanged(e);
if (Control == null)
{
cameraPreview = new CameraPreview(Context);
cameraPreview.OnPictureReturn = e.NewElement.OnPictureReturn;
cameraPreview.OnVideoStarted = e.NewElement.OnVideoStarted;
cameraPreview.OnVideoFinished = e.NewElement.OnVideoFinished;
SetNativeControl(cameraPreview);
}
if (e.OldElement != null)
{
// Unsubscribe
cameraPreview.Click -= OnCameraPreviewClicked;
}
if (e.NewElement != null)
{
Camera camera = null;
e.NewElement.TakePhotoEvent += (sender, args) =>
{
if (cameraPreview.Preview != null)
{
cameraPreview.OnPictureReturn = ((PocketPro.CameraPreview)(sender)).OnPictureReturn;
cameraPreview.OnVideoStarted = ((PocketPro.CameraPreview)(sender)).OnVideoStarted;
cameraPreview.OnVideoFinished = ((PocketPro.CameraPreview)(sender)).OnVideoFinished;
//cameraPreview.Preview.AutoFocus(new AutofocusCallBack(cameraPreview)
//{
// isTakePhoto = true
//});
cameraPreview.camera.EnableShutterSound(false);
cameraPreview.camera.TakePicture(new ShutterCallback(), null, new JpegCallback(this.cameraPreview));
//}
//else camera.AutoFocus(new AutofocusCallBack(cameraPreview)); // TODO: Verify No Memory Leak On Failure
}
else
{
}
};
e.NewElement.StartRecordingEvent += (sender, args) => {
cameraPreview.Preview.StopPreview();
cameraPreview.Preview.Release();
var cameraOption = cameraOptions.Equals(CameraOptions.Front) ? CameraOptions.Front : CameraOptions.Rear;
var dcimPath = Android.OS.Environment.GetExternalStoragePublicDirectory(Environment.DirectoryMovies).Path;
var sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
var currentDateandTime = sdf.Format(new Date());
var filename = $"PocketPro - {currentDateandTime}.mp4";
var dcimFilePath = System.IO.Path.Combine(dcimPath, filename);
videoFilePath = dcimFilePath;
camera = Camera.Open((int)cameraOption);
cameraOptions = cameraOption;
cameraPreview.Preview = camera;
camera.Unlock();
try
{
mRecorder = new MediaRecorder();
mRecorder.SetCamera(camera);
mRecorder.SetVideoSource(VideoSource.Camera);
mRecorder.SetAudioSource(AudioSource.Mic);
mRecorder.SetOutputFormat(OutputFormat.Mpeg4);
mRecorder.SetVideoEncoder(VideoEncoder.H264);
mRecorder.SetAudioEncoder(AudioEncoder.Aac);
mRecorder.SetOutputFile(dcimFilePath);
mRecorder.SetOrientationHint(0);
mRecorder.SetVideoFrameRate(30);
// mRecorder.SetVideoEncodingBitRate(512 * 1000);
mRecorder.SetVideoSize(1920, 1080);
mRecorder.SetPreviewDisplay(cameraPreview.holder.Surface);
mRecorder.Prepare();
mRecorder.Start();
}
catch (Exception exception)
{
Console.WriteLine(exception.Message);
}
};
e.NewElement.StopRecordingEvent += (sender, args) => {
mRecorder.Stop();
mRecorder.Reset();
mRecorder.Release();
//camera = Camera.Open((int)cameraOption);
//cameraOptions = cameraOption;
//camera.Unlock();
var dcimPath = Android.OS.Environment.GetExternalStoragePublicDirectory(Environment.DirectoryMovies).Path;
var fileBase = System.IO.Path.GetFileNameWithoutExtension(videoFilePath);
var dcimFilePath = System.IO.Path.Combine(dcimPath, $"{fileBase}.png");
var brightnessService = DependencyService.Get <IRateApplication>();
var thumb = brightnessService.GenerateThumbImage(videoFilePath, 1000);
System.IO.File.WriteAllBytes(dcimFilePath, thumb);
};
e.NewElement.ToggleCamera += (sender, args) =>
{
cameraPreview.Preview.StopPreview();
cameraPreview.Preview.Release();
var cameraOption = cameraOptions.Equals(CameraOptions.Front) ? CameraOptions.Front : CameraOptions.Rear;
camera = Camera.Open((int)cameraOption);
cameraOptions = cameraOption;
cameraPreview.Preview = camera;
cameraPreview.Preview.StartPreview();
cameraPreview = new CameraPreview(Context);
cameraPreview.OnPictureReturn = e.OldElement.OnPictureReturn;
cameraPreview.OnVideoStarted = e.OldElement.OnVideoStarted;
cameraPreview.OnVideoFinished = e.OldElement.OnVideoFinished;
SetNativeControl(cameraPreview);
Control.Preview = camera;
Control.Preview.StartPreview();
};
e.NewElement.AutoFocusEvent += (sender, args) =>
{
cameraPreview.Preview.AutoFocus(new AutofocusCallBack(cameraPreview));
};
e.NewElement.EnableTorchEvent += (sender, args) =>
{
var parameters = cameraPreview.Preview.GetParameters();
parameters.FlashMode = Camera.Parameters.FlashModeTorch;
//cameraPreview.Preview.StopPreview();
cameraPreview.Preview.SetParameters(parameters);
};
e.NewElement.DisableTorchEvent += (sender, args) =>
{
var parameters = cameraPreview.Preview.GetParameters();
parameters.FlashMode = Camera.Parameters.FlashModeOff;
//cameraPreview.Preview.StartPreview();
cameraPreview.Preview.SetParameters(parameters);
};
// Subscribe
cameraPreview.Click += OnCameraPreviewClicked;
try
{
if (camera == null)
{
Control.Preview = Camera.Open((int)e.NewElement.Camera);
}
}
catch (Exception cameraException)
{
Console.WriteLine(cameraException.Message);
}
}
}
