Turned out that the video was recorded okay, except Quicktime on Mac did not play it back right. VLC does play the video part but misses AMR_NB encoded audio.
Anyone have recommendations for a AMR capable media player that works on Mac? Also played okay on the phone itself with the Gallery video player. Sound was muffled though, which is still a mystery. Thanks Sreeram On Aug 19, 12:45 am, webhopper <[email protected]> wrote: > I am trying to develeop a video capture application on the HTC Ion > device using the MediaRecorder class. The application seems to run and > record MP4 output file, but it is blank when I view it with QuickTime! > I am wondering if I am setting up the MediaRecorder correctly. > > Also, expected to see a live preview because a Surface to display the > preview was set . But nothing shows up. > > Any one have suggestions as to what could be doing wrong? I have > pasted the code below. Thanks in advance! > > Sreeram > > public class Snapper extends Activity { > public MediaRecorder mrec = null; > private Button startRecording = null; > private Button stopRecording = null; > private SurfaceView surface = null; > private TextView debugText = null; > private static final String TAG = "Video"; > File videofile; > > /** Called when the activity is first created. */ > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > mrec = new MediaRecorder(); > > startRecording = (Button)findViewById(R.id.snap); > stopRecording = (Button)findViewById(R.id.stop); > surface = (SurfaceView) findViewById(R.id.surface); > > //mrec.setCamera(Camera.open()); > mrec.setVideoSource(MediaRecorder.VideoSource.CAMERA); > mrec.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4); > mrec.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT); > mrec.setPreviewDisplay(surface.getHolder().getSurface()); > > startRecording.setOnClickListener(new View.OnClickListener(){ > public void onClick(View v) { > try { > startRecording.setEnabled(false); > startRecording(); > } catch (Exception e) { > Log.e(TAG,"Caught io exception " + e.getMessage()); > } > } > }); > > stopRecording.setOnClickListener(new View.OnClickListener(){ > public void onClick(View v) { > try { > stopRecording.setEnabled(false); > stopRecording(); > } catch (Exception ee) { > Log.e(TAG,"Caught io exception " + ee.getMessage()); > } > String file = processvideofile(); > uploadFile(file); > } > }); > startRecording.setEnabled(true); > > } > > protected String processvideofile() { > ContentValues values = new ContentValues(4); > long current = System.currentTimeMillis(); > > values.put(MediaStore.Video.Media.TITLE, "video" + > videofile.getName()); > values.put(MediaStore.Video.Media.DATE_ADDED, (int) (current / > 1000)); > values.put(MediaStore.Video.Media.MIME_TYPE, "video/mp4"); > values.put(MediaStore.Video.Media.DATA, > videofile.getAbsolutePath()); > ContentResolver contentResolver = getContentResolver(); > Uri base = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; > Uri newUri = contentResolver.insert(base, values); > return videofile.getName(); > } > > protected void startRecording() throws IOException > { > if (videofile == null) { > File sampleDir = Environment.getExternalStorageDirectory > (); > try { > videofile = File.createTempFile("foo", ".mp4", > sampleDir); > } > catch (IOException e) > { > Log.e(TAG,"sdcard access error"); > return; > } > } > > mrec.setOutputFile(videofile.getAbsolutePath()); > mrec.prepare(); > mrec.start(); > } > > protected void stopRecording() { > mrec.stop(); > mrec.release(); > } > > } > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
