Discussion :

[solika]

Bonjour,

Depuis hier, j'ai cette erreur : MediaRecorder start failed: - 38.

Code source de l'activity :

Code :

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package com.example.testcamera3;
 
import java.io.IOException;
 
import android.hardware.Camera;
import android.hardware.Camera.Parameters;
import android.media.CamcorderProfile;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
 
public class VideoStackActivity extends Activity implements SurfaceHolder.Callback {
 
	private SurfaceHolder surfaceHolder;
	private SurfaceView surfaceView;
	public MediaRecorder mrec = new MediaRecorder();
	private Button startRecording = null;
	private Camera mCamera;
 
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_video_stack);
 
		startRecording = (Button)findViewById(R.id.buttonstart);
		startRecording.setOnClickListener(new OnClickListener() {
 
			@Override
			public void onClick(View arg0) {
 
					startRecording();
 
 
			}
 
		});
 
		mCamera = Camera.open();
		surfaceView = (SurfaceView)findViewById(R.id.surface_camera);
		surfaceHolder = surfaceView.getHolder();
		surfaceHolder.addCallback(this);
		surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
	}
 
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		menu.add(0, 0, 0, "StartRecording");
		menu.add(0, 1, 0, "StopRecording");
		return super.onCreateOptionsMenu(menu);
	}
 
	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch(item.getItemId()) {
		case 0:
			try {
				startRecording();
			} catch (Exception e) {
				mrec.release();
			}
			break;
		case 1:
			mrec.stop();
			mrec.release();
			mrec = null;
			break;
		default:
				break;
		}
		return super.onOptionsItemSelected(item);
	}
 
	protected void startRecording()  {
		mrec = new MediaRecorder();
 
 
		mCamera.unlock();
 
 
 
		mrec.setCamera(mCamera);
 
		mrec.setPreviewDisplay(surfaceHolder.getSurface());
		mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA);
		mrec.setAudioSource(MediaRecorder.AudioSource.MIC);
 
		mrec.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_LOW));
		mrec.setVideoFrameRate(1);
		// A tester
		//mrec.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
		mrec.setPreviewDisplay(surfaceHolder.getSurface());
		//ok
		mrec.setOutputFile(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES)+"/test.mp4");
 
 
 
//		Ok !
		try {
			mrec.prepare();
		} catch (IllegalStateException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		mrec.start();
	}
 
	protected void stopRecording() {
		mrec.stop();
		mrec.reset();
		mCamera.release();
	}
 
	private void releaseMediaRecorder() {
		if(mrec != null) {
			mrec.reset();
			mrec.release();
			mrec = null;
			mCamera.lock();
		}
	}
 
	private void releaseCamera() {
		if(mCamera != null) {
			mCamera.release();
			mCamera = null;
		}
	}
 
	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
 
	}
 
	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		if(mCamera!=null) {
			Parameters params = mCamera.getParameters();
			mCamera.setParameters(params);
		}
	}
 
	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		if(mCamera != null) {
			mCamera.stopPreview();
			mCamera.release();
		}
	}
}

Du layout :

Code :

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".VideoStackActivity" 
    android:orientation="vertical">
 
    <SurfaceView 
        android:id="@+id/surface_camera"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"/>
 
    <Button
        android:id="@+id/buttonstart"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
       />
 
</RelativeLayout>

Du manifest :

Code :

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.testcamera3"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.INTERNET"/>
 
 
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
 
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.testcamera3.VideoStackActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>

De quoi peut-il s'agir ?

[solika]

En éteignant puis rallumant le portable, cela refonctionné...