Archived:Video streaming will not start until RecordControl.commit() is called (Known Issue)
It is not possible to immediately stream video data being recorded with the camera to another output stream.
All Series 40 phones record to 3GP / 3GP2 format, and when recording takes place, the video encoder stores a header at the start of the file. Unfortunately, this file header must be updated as the recording completes. Therefore, if it were possible to immediately stream the recorded video, the (invalid) header would be transmitted and could not be updated later.
Therefore, even if the RecordControl.setOutputStream() method is used, the target output stream will only be filled with data once the RecordControl.commit() method is called and the recording is stopped.