How To Record A Video And Audio Through Device, Firemonkey?

  

My Code for video recording is given, the recording is not in a smooth way i.e. the place where I turn my camera appears on the preview view late. How I can resolve this issue

unit VideoAttachmentUnit;

interface

uses
System.SysUtils,
System.Types,
System.UITypes,
System.Classes,
System.Variants,
FMX.Types,
FMX.Controls,
FMX.Forms,
FMX.Dialogs,
FMX.StdCtrls,
FMX.Media,
FMX.Platform,
FMX.Objects,
FMX.Layouts,
FMX.Memo,
FMX.Controls.Presentation;

type
TVideoAttachmentForm = class(TForm)
NavBar: TToolBar;
CameraChangeBtn: TButton;
PlayBtn: TButton;
CloseScreenBtn: TButton;
ToolBar1: TToolBar;
StartRecordingBtn: TButton;
StopRecordingBtn: TButton;
ImageCameraView: TImage;
CameraComponent: TCameraComponent;

procedure FormCreate(Sender: TObject);
procedure CloseScreenBtnClick(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure CameraChangeBtnClick(Sender: TObject);
procedure StartRecordingBtnClick(Sender: TObject);
procedure StopRecordingBtnClick(Sender: TObject);
procedure CameraComponentSampleBufferReady(Sender: TObject;
const ATime: TMediaTime);
private
{ Private declarations }
procedure GetImage;
procedure InitialSettingsForTheRecording;

public
function AppEvent(AAppEvent: TApplicationEvent; AContext: TObject): Boolean;
end;

var
VideoAttachmentForm: TVideoAttachmentForm;
WhichCamera:String;

procedure DisplayTheVideoAttachmentScreen;

implementation

{$R *.fmx}
procedure DisplayTheVideoAttachmentScreen;
begin
try
Application.CreateForm(TVideoAttachmentForm , VideoAttachmentForm);
VideoAttachmentForm.Show;
finally
end;
end;

procedure TVideoAttachmentForm.CameraChangeBtnClick(Sender: TObject);
var
LActive: Boolean;
begin
{ Select Back Camera }
LActive := CameraComponent.Active;
try
CameraComponent.Active := False;
if WhichCamera = ‘BackCamera’ then
begin
CameraComponent.Kind := TCameraKind.FrontCamera;
WhichCamera := ‘FrontCamera’;
end
else if WhichCamera = ‘FrontCamera’ then
begin
CameraComponent.Kind := TCameraKind.BackCamera;
WhichCamera := ‘BackCamera’;
end;
finally
CameraComponent.Active := LActive;
end;

end;

procedure TVideoAttachmentForm.CameraComponentSampleBufferReady(Sender: TObject;
const ATime: TMediaTime);
begin
TThread.Synchronize(TThread.CurrentThread, GetImage);
ImageCameraView.Width := ImageCameraView.Bitmap.Width;
ImageCameraView.Height := ImageCameraView.Bitmap.Height;
end;

procedure TVideoAttachmentForm.CloseScreenBtnClick(Sender: TObject);
begin
VideoAttachmentForm.Close;
end;

procedure TVideoAttachmentForm.FormCreate(Sender: TObject);
var
AppEventSvc: IFMXApplicationEventService;
begin
if TPlatformServices.Current.SupportsPlatformService(IFMXApplicationEventService, IInterface(AppEventSvc)) then
AppEventSvc.SetApplicationEventHandler(AppEvent);
end;

procedure TVideoAttachmentForm.FormShow(Sender: TObject);
begin
InitialSettingsForTheRecording;
end;

function TVideoAttachmentForm.AppEvent(AAppEvent: TApplicationEvent; AContext: TObject): Boolean;
begin
case AAppEvent of
TApplicationEvent.WillBecomeInactive:
CameraComponent.Active := False;
TApplicationEvent.EnteredBackground:
CameraComponent.Active := False;
TApplicationEvent.WillTerminate:
CameraComponent.Active := False;
end;
end;

procedure TVideoAttachmentForm.InitialSettingsForTheRecording;
var
LSettings: TVideoCaptureSetting;
begin
CameraComponent.Kind := TCameraKind.BackCamera;
WhichCamera := ‘BackCamera’;
if CameraComponent.HasTorch then
begin
CameraComponent.TorchMode := TTorchMode.ModeAuto;
end;
CameraComponent.Quality := TVideoCaptureQuality.CaptureSettings;
CameraComponent.CaptureSettingPriority := TVideoCaptureSettingPriority.FrameRate;
end;

procedure TVideoAttachmentForm.StartRecordingBtnClick(Sender: TObject);
begin
CameraComponent.Active := True;
end;

procedure TVideoAttachmentForm.StopRecordingBtnClick(Sender: TObject);
begin
CameraComponent.Active := False;
end;

procedure TVideoAttachmentForm.GetImage;
begin
CameraComponent.SampleBufferToBitmap(ImageCameraView.Bitmap, True);
end;

end.

Comments are closed.