mediarecorder

i searched to check if this question is no dup , i see some has no answer and others did not help. this is my code : private void startRecording() { mRecorder = new MediaRecorder(); mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC); mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); mFileName = Environment.getExternalStorageDirectory().getAbsolutePath(); mFileName += "/recordedHeckPost_.3gp"; mRecorder.setOutputFile(mFileName); try { mRecorder.prepare(); //Thread.sleep(2000); mRecorder.start(); } catch

I'm trying to record MediaRecorder without using Camera instance but using Surface video source (yes it's possible, but it turned out that it's not that perfect) - mediaRecorder.setVideoSource(MediaRecorder.VideoSource.SURFACE); I just write what the issue: Next code works only on some devices and works temporary on some devices after a recent device rebooting or doesn't work at all If it doesn't work ok MediaRecorder.stop() method fails with the next error E/MediaRecorder: stop failed: -1007 W/System.err: java.lang.RuntimeException: stop failed. at android.media.MediaRecorder.stop(Native

I'm working on a project in which I'd like to: Load a video js and display it on the canvas. Use filters to alter the appearance of the canvas (and therefore the video). Use the MediaStream captureStream() method and a MediaRecorder object to record the surface of the canvas and the audio of the original video. Play the stream of both the canvas and the audio in an HTML video element. I've been able to display the canvas recording in a video element by tweaking this WebRTC demo code: https://webrtc.github.io/samples/src/content/capture/canvas-record/ That said, I can't figure out how to record