Hi,
I want to show you here a complete tutorial of making a videorecorder. I just browsed all over the internet, but there is not a fully working code that can record full HD videos or any type of videos.
I faced many issues, like samsung galaxy which dont support full hd resolutions, or the image was green, or some flickeering. This code will fix all this issues.
I hope this will help you.
Code for VideoRecorderActivity:
package com.androidgenuine.videorecorder; import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; import android.app.Activity; import android.hardware.Camera; import android.hardware.Camera.Size; import android.media.MediaRecorder; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.util.Log; import android.view.SurfaceHolder; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.FrameLayout; import android.widget.Toast; public class VideoRecorderActivity extends Activity implements Camera.ErrorCallback, SurfaceHolder.Callback, OnClickListener { private static final String TAG = "VideoRecording"; Handler handler = new Handler(); private Camera mCamera; private CameraPreview mPreview; private MediaRecorder mMediaRecorder; private Button captureButton; private boolean isRecording = false; private List<Size> sizes; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Create an instance of Camera. if (mCamera == null) { mCamera = getCameraInstance(); // Create preview view and set it as the content of our activity. mPreview = new CameraPreview(this, mCamera); } else { mCamera.release(); mCamera = getCameraInstance(); // Create preview view and set it as the content of our activity. mPreview = new CameraPreview(this, mCamera); } int i = R.id.videoview; Object o = this.findViewById(i); FrameLayout preview = (FrameLayout) o; preview.addView(mPreview); Camera.Parameters params = mCamera.getParameters(); params.set("cam_mode", 1); mCamera.setParameters(params); sizes = params.getSupportedPreviewSizes(); // Add a listener to the Capture button captureButton = (Button) findViewById(R.id.mybutton); captureButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (isRecording) { mMediaRecorder.stop(); // TODO Auto-generated method stub // stop recording and release camera // stop the recording releaseMediaRecorder(); // release the MediaRecorder object mCamera.lock(); // take camera access back from // MediaRecorder // inform the user that recording has stopped setCaptureButtonText("Capture"); isRecording = false; } else { // initialize video camera if (prepareVideoRecorder()) { // Camera is available and unlocked, MediaRecorder is // prepared, // now you can start recording mMediaRecorder.start(); // inform the user that recording has started setCaptureButtonText("Stop"); isRecording = true; } else { // prepare didn't work, release the camera releaseMediaRecorder(); } } } }); } public void setCaptureButtonText(String s) { captureButton.setText(s); } @Override public void surfaceCreated(SurfaceHolder holder) { // The Surface has been created, now tell the camera where to draw the // preview. try { mCamera.setPreviewDisplay(holder); mCamera.startPreview(); } catch (IOException e) { Log.d(TAG, "Error setting camera preview: " + e.getMessage()); Toast.makeText(this, "Device is not supported!", Toast.LENGTH_LONG) .show(); } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { // TODO Auto-generated method stub } @Override public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } private boolean prepareVideoRecorder() { // mCamera = getCameraInstance(); mMediaRecorder = new MediaRecorder(); // Step 1: Unlock and set camera to MediaRecorder mCamera.unlock(); mMediaRecorder.setCamera(mCamera); // Step 2: Set sources // activate this for recording with sound // mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); mMediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); mMediaRecorder.setVideoSize(getMaxSupportedVideoSize().width, getMaxSupportedVideoSize().height); mMediaRecorder.setVideoEncoder(MediaRecorder.VideoEncoder.H264); // mMediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);// // activate this for recording with sound // Step 4: Set output file mMediaRecorder.setOutputFile(getOutputMediaFile("movie")); // Step 5: Set the preview output mMediaRecorder.setPreviewDisplay(mPreview.getHolder().getSurface()); // Step 6: Prepare configured MediaRecorder try { mMediaRecorder.prepare(); } catch (IllegalStateException e) { Log.d(TAG, "IllegalStateException preparing MediaRecorder: " + e.getMessage()); Toast.makeText(this, "Device is not supported!", Toast.LENGTH_LONG) .show(); releaseMediaRecorder(); return false; } catch (IOException e) { Log.d(TAG, "IOException preparing MediaRecorder: " + e.getMessage()); Toast.makeText(this, "Device is not supported!", Toast.LENGTH_LONG) .show(); releaseMediaRecorder(); return false; } return true; } @Override public void onClick(View v) { /* * Log.i("onClick", "BEGIN"); if(!recording) { recording = * startRecording(); } else { stopRecording(); recording = false; } * Log.i("onClick", "END"); */ } @Override protected void onPause() { super.onPause(); if (isRecording) { mMediaRecorder.stop(); releaseMediaRecorder(); mCamera.lock(); setCaptureButtonText("RECORD"); isRecording = false; } else { releaseMediaRecorder(); } // releaseCamera(); } @Override protected void onDestroy() { super.onDestroy(); if (isRecording) { mMediaRecorder.stop(); releaseMediaRecorder(); mCamera.lock(); setCaptureButtonText("RECORD"); isRecording = false; } else { releaseMediaRecorder(); releaseCamera(); } // releaseCamera(); } private void releaseMediaRecorder() { if (mMediaRecorder != null) { mMediaRecorder.reset(); // clear recorder configuration mMediaRecorder.release(); // release the recorder object mMediaRecorder = null; mCamera.lock(); // lock camera for later use } } private void releaseCamera() { if (mCamera != null) { mCamera.release(); // release the camera for other applications mCamera = null; } } private Camera getCameraInstance() { Camera c = null; try { c = Camera.open(); // attempt to get a Camera instance // c = this.open(); // attempt to get a Camera instance } catch (Exception e) { // Camera is not available (in use or does not exist) } return c; // returns null if camera is unavailable } public Camera open() { return Camera.open(); } @Override public void onError(int error, Camera camera) { // TODO Auto-generated method stub if (error == Camera.CAMERA_ERROR_SERVER_DIED || error == Camera.CAMERA_ERROR_UNKNOWN) { releaseCamera(); finish(); Toast.makeText(this, "Camera has died", Toast.LENGTH_LONG).show(); } } public Size getMaxSupportedVideoSize() { int maximum = sizes.get(0).width; int position = 0; for (int i = 0; i < sizes.size() - 1; i++) { if (sizes.get(i).width > maximum) { maximum = sizes.get(i).width; // new maximum position = i - 1; } } if (position == 0) { int secondMax = sizes.get(1).width; position = 1; for (int j = 1; j < sizes.size() - 1; j++) { if (sizes.get(j).width > secondMax) { secondMax = sizes.get(j).width; // new maximum position = j; } } } return sizes.get(position); // end method max } private static String getOutputMediaFile(String sufix) { String mediaFile; File mediaStorageDir = new File( Environment.getExternalStorageDirectory(), "/VideoLogger"); if (!mediaStorageDir.exists()) { if (!mediaStorageDir.mkdirs()) { Log.d("VideoLogger", "failed to create directory"); return null; } } String timeStamp = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss") .format(new Date()); if (!sufix.equals("movie")) { mediaFile = mediaStorageDir.getPath() + File.separator + "output_" + timeStamp + "_" + sufix + ".txt"; } else { mediaFile = mediaStorageDir.getPath() + File.separator + "output_" + timeStamp + ".mp4"; } return mediaFile; } }
Code for main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <FrameLayout android:id="@+id/videoview" android:layout_width="fill_parent" android:layout_height="fill_parent" /> <Button android:id="@+id/mybutton" android:layout_width="150dip" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:text="RECORD" android:textSize="12dp"/> </RelativeLayout>
Code for CameraPreview.java
package com.androidgenuine.videorecorder; import java.io.IOException; import java.util.List; import android.content.Context; import android.hardware.Camera; import android.hardware.Camera.Size; import android.util.Log; import android.view.SurfaceHolder; import android.view.SurfaceView; public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback { private SurfaceHolder mHolder; private Camera mCamera; private List<Size> sizes; public CameraPreview(Context context, Camera camera) { super(context); mCamera = camera; // Install a SurfaceHolder.Callback so we get notified when the // underlying surface is created and destroyed. mHolder = getHolder(); mHolder.addCallback(this); // deprecated setting, but required on Android versions prior to 3.0 mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { // If your preview can change or rotate, take care of those events here. // Make sure to stop the preview before resizing or reformatting it. if (mHolder.getSurface() == null) { // preview surface does not exist return; } // stop preview before making changes try { mCamera.stopPreview(); } catch (Exception e) { // ignore: tried to stop a non-existent preview } // make any resize, rotate or reformatting changes here Camera.Parameters params = mCamera.getParameters(); sizes = params.getSupportedPreviewSizes(); Log.d("PREVIEW SIZES", String.valueOf(getMaxSupportedVideoSize().width)+":"+String.valueOf(getMaxSupportedVideoSize().height)); params.setPreviewSize(getMaxSupportedVideoSize().width, getMaxSupportedVideoSize().height); mCamera.setParameters(params); // start preview with new settings try { mCamera.setPreviewDisplay(mHolder); mCamera.startPreview(); } catch (Exception e) { } } @Override public void surfaceCreated(SurfaceHolder holder) { // TODO Auto-generated method stub // The Surface has been created, now tell the camera where to draw the // preview. try { mCamera.setPreviewDisplay(holder); mCamera.startPreview(); } catch (IOException e) { } } @Override public void surfaceDestroyed(SurfaceHolder holder) { // TODO Auto-generated method stub } public Size getMaxSupportedVideoSize() { int maximum = sizes.get(0).width; int position = 0; for (int i = 0; i < sizes.size() - 1; i++) { if (sizes.get(i).width > maximum) { maximum = sizes.get(i).width; // new maximum position = i - 1; } } if (position == 0) { int secondMax = sizes.get(1).width; position = 1; for (int j = 1; j < sizes.size() - 1; j++) { if (sizes.get(j).width > secondMax) { secondMax = sizes.get(j).width; // new maximum position = j; } } } return sizes.get(position); // end method max } }
The permissions are:
<uses-permission android:name="android.permission.RECORD_VIDEO" /> <uses-permission android:name="android.permission.CAMERA" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.RECORD_AUDIO" /> <uses-feature android:name="android.hardware.camera" /> <uses-feature android:name="android.hardware.camera.autofocus" />
Also please use screen orientation landscape in manifest for this to work.
If you have questions please post them in the comment section.
