All our code is just very simple, but the MediaRecorder is not work, so I guess the PV opencore has something error. In other think way, the android video recorder application doesn't use Opencore, but use Camera directly, so it works fine, in fact, in the opencore's MIO it use Camera also.
On Jul 7, 3:53 pm, Byeong Jo Lee <[email protected]> wrote: > hi. > i have been trying to record camera usingMediaRecorder. > i searched some sample source code. > but they dose not work... > > actually i succeeded recording audio, but i can't recordvideo. > is there someone who advice me? > > ---------------- source code ----------------------- > package lbj.camera.test; > > import java.io.File; > import java.io.IOException; > > import android.app.Activity; > import android.content.Context; > import android.hardware.Camera; > import android.media.MediaRecorder; > import android.os.Bundle; > import android.os.Environment; > import android.util.Log; > import android.view.Menu; > import android.view.MenuItem; > import android.view.SurfaceHolder; > import android.view.SurfaceView; > > public class CameraTest2 extends Activity { > publicMediaRecordermrec = null; > File videofile; > > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > mPreview = new Preview(this); > setContentView(mPreview); > } > > private Preview mPreview; > SurfaceView sv; > SurfaceHolder holder; > > @Override > public boolean onCreateOptionsMenu(Menu menu) { > menu.add("Capture"); > menu.add("Save"); > return super.onCreateOptionsMenu(menu); > } > > public boolean onOptionsItemSelected(MenuItem item) { > if (item.getTitle().equals("Capture")) { > try { > mPreview.record(); > } catch (Exception e) { > e.printStackTrace(); > Log.d("Has not finished here:", > "Startingvideo"); > } > } else if (item.getTitle().equals("Save")) { > mPreview.saveAndStop(); > } > return true; > } > > } > > class Preview extends SurfaceView implements SurfaceHolder.Callback { > > SurfaceHolder mHolder; > Camera mCamera; > Context context; > MediaRecorderrecorder = null; > > public void record() throws Exception{ > File audiofile = null; > try { > String mSdCardPath = > Environment.getExternalStorageDirectory().getAbsolutePath(); > audiofile = new File(mSdCardPath + File.separator + > "test.3gp"); > audiofile.createNewFile(); > } catch (Exception e) { > throw e; > } > > recorder = newMediaRecorder(); > > recorder.setCamera(mCamera); > recorder.setPreviewDisplay(mHolder.getSurface()); > > recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA); > recorder.setAudioSource(MediaRecorder.AudioSource.MIC); > > recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); > > recorder.setOutputFile(audiofile.getAbsolutePath()); > recorder.setVideoSize(176, 144); > recorder.setVideoFrameRate(15); > > recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT); > recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); > > Log.d("Has Entered here:", "Startingvideo"); > > if (recorder != null) { > try { > recorder.prepare(); > recorder.start(); > } catch (Exception ex) { > ex.printStackTrace(); > } > } > } > > Preview(Context context) { > super(context); > > mHolder = getHolder(); > mHolder.addCallback(this); > mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); > } > > public void surfaceCreated(SurfaceHolder holder) { > try { > mCamera = Camera.open(); > mCamera.setPreviewDisplay(holder); > } catch (IOException e) { > e.printStackTrace(); > } > } > > public void surfaceDestroyed(SurfaceHolder holder) { > Log.d("Stopping preview", "in preview class"); > mCamera.stopPreview(); > mCamera = null; > } > > public void surfaceChanged(SurfaceHolder holder, int format, int w, > int h) { > Camera.Parameters parameters = mCamera.getParameters(); > parameters.setPreviewSize(w, h); > mCamera.setParameters(parameters); > mCamera.startPreview(); > } > > public void saveAndStop() { > if (recorder != null) { > try { > recorder.stop(); > recorder.reset(); > recorder.release(); > } catch (IllegalStateException e) { > e.printStackTrace(); > } > } > } > > > > } -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
