hi guys,
I am trying to develop a Simple Video recorder application on Android,
using available media recorder package.
The application throws exception for prepare method.
Below is the code I am using.
package com.ittiam.media;
import java.io.IOException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.media.MediaRecorder;
import android.media.MediaRecorder.OnInfoListener;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.Window;
package com.ittiam.media;
import java.io.IOException;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.media.MediaRecorder;
import android.media.MediaRecorder.OnInfoListener;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.Window;
public class SimpleVideoRecorder extends Activity implements
OnInfoListener, SurfaceHolder.Callback
{
public MediaRecorder mMediaRecorder;
VideoPreview mVideoPreview;
SurfaceHolder mSurfaceHolder;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_PROGRESS);
setContentView(R.layout.video_camera);
mMediaRecorder = new MediaRecorder();
mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mMediaRecorder.setVideoSource
(MediaRecorder.VideoSource.CAMERA);
mMediaRecorder.setOutputFormat
(MediaRecorder.OutputFormat.THREE_GPP);
mMediaRecorder.setMaxDuration(10000);
mMediaRecorder.setOutputFile("/sdcard/test.3gp");
mMediaRecorder.setVideoFrameRate(20);
mMediaRecorder.setVideoSize(352,288);
mMediaRecorder.setVideoEncoder
(MediaRecorder.VideoEncoder.DEFAULT);
mMediaRecorder.setAudioEncoder
(MediaRecorder.AudioEncoder.AMR_NB);
// remaining >= LOW_STORAGE_THRESHOLD at this point, reserve a
quarter
// of that to make it more likely that recording can complete
successfully.
try
{
mMediaRecorder.setMaxFileSize(10 * 1024 * 1024);
}
catch (RuntimeException exception)
{
// We are going to ignore failure of setMaxFileSize here,
as
// a) The composer selected may simply not support it, or
// b) The underlying media framework may not handle 64-bit
range
// on the size restriction.
}
try
{
float VIDEO_ASPECT_RATIO = 176.0f / 144.0f;
mVideoPreview = (VideoPreview) findViewById
(R.id.camera_preview);
mVideoPreview.setAspectRatio(VIDEO_ASPECT_RATIO);
SurfaceHolder holder = mVideoPreview.getHolder();
holder.addCallback(this);
holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
holder.setFixedSize(352,288);
//holder.
mMediaRecorder.setPreviewDisplay(holder.getSurface());
}
catch(Throwable e)
{
}
try
{
mMediaRecorder.prepare();
}
catch (IOException exception)
{
releaseMediaRecorder();
}
try
{
mMediaRecorder.start();
}
catch(IllegalStateException e)
{
}
}
private void releaseMediaRecorder()
{
if (mMediaRecorder != null)
{
mMediaRecorder.reset();
mMediaRecorder.release();
mMediaRecorder = null;
}
}
public void onInfo (MediaRecorder mr, int what, int extra)
{
switch(what)
{
case MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED:
{
mMediaRecorder.stop();
releaseMediaRecorder();
}
break;
case MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED:
{
mMediaRecorder.stop();
releaseMediaRecorder();
}
break;
default:
{
mMediaRecorder.stop();
releaseMediaRecorder();
}
}
return;
}
public void surfaceChanged(SurfaceHolder holder, int format, int
w, int h)
{
}
public void surfaceCreated(SurfaceHolder holder)
{
mSurfaceHolder = holder;
}
public void surfaceDestroyed(SurfaceHolder holder) {
mSurfaceHolder = null;
}
}
Can anyone help me on this?
Thanks in advance!!
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