錄製mp4檔案

package com.demo.android.test;

import java.io.File;

import android.app.Activity;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.util.Log;

public class Test extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        File file = new File("/storage/test.mp4");

        try
        {
        if(!file.exists())
        {
            if(file.createNewFile())
            {
                Log.e("debug","create empty file successful.");
            }
            else
            {
                Log.e("debug","create empty file failure.");
            }
        }
        MediaRecorder recorder = new MediaRecorder();
         recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
         recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
         recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
         recorder.setOutputFile("/storage/test.mp4");
         recorder.prepare();
         Log.e("debug","recorder start ....");
         recorder.start();   // Recording is now started
Thread.sleep(60000);
Log.e("debug","reorder stop....");
         recorder.stop();
        }
        catch(Exception ex)
        {
            Log.e("debug",ex.toString());
        }
    }
}