MediaRecorder gives start error or IllegalStateException
I am using MediaRecorder for recording a video through Camera API of android. I am stucked with a very strange problem.
private void startRecordingVideo() {
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
File file = getAlbumDir();
recorder.setOutputFile(file.getAbsolutePath());
recorder.setMaxDuration(50000);
recorder.setMaxFileSize(5000000);
recorder.setPreviewDisplay(CameraBridgeViewBase.surfaceHolder.getSurface());
try {
recorder.prepare();
recorder.start();
} catch (IllegalStateException | IOException e) {
e.printStackTrace();
}
}
Now this gives me MediaRecorder: start failed: -19 error. I have checked this and this links which says to remove mediaRecorder.setVideoSize(sView.getWidth(), sView.getHeight()); but I didn't use setVideoSize(sView.getWidth(), sView.getHeight()) . With try and error I found that if I remove encoders recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); and recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT); app doesn't crash but gives new exception as:
03-23 16:50:06.213 28226-28226/com.scenera.android.surveillance E/MediaRecorder: audio source is set, but audio encoder is not set
I don't understand what I am doing wrong here. Any help would be appriciated. Thanks in advance.
The problem is that you're not setting the camera, using Camera 1 API you should first open the camera, then unlock it and set it to the recorder. Only after that you can continue with the configuration of MediaRecorder (which is btw a very beautifully written piece of API)
MediaRecorder recorder = new MediaRecorder();
Camera camera = Camera.open();
camera.unlock();
recorder.setCamera(camera);
recorder.setPreviewDisplay(surfaceHolder.getSurface());
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
File file = getAlbumDir();
recorder.setOutputFile(file.getAbsolutePath());
recorder.setMaxDuration(50000);
recorder.setMaxFileSize(5000000);
try {
recorder.prepare();
recorder.start();
} catch (IllegalStateException | IOException e) {
e.printStackTrace();
}
boolean mStartRecording=false;
first create this variable in the activity and later try below code
if( recorder == null ) {
recorder = new MediaRecorder();
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT);
File file = getAlbumDir();
recorder.setOutputFile(file.getAbsolutePath());
recorder.setMaxDuration(50000);
recorder.setMaxFileSize(5000000);
recorder.setPreviewDisplay(CameraBridgeViewBase.surfaceHolder.getSurface());
}
if(!mStartRecording) {
try {
recorder.prepare();
recorder.start();
mStartRecording = true;
} catch (IOException e) {
e.printStackTrace();
}
} else {
mStartRecording = false;
recorder.stop();
recorder.reset();
recorder.release();
recorder = null;
}
try this and let me know if its work.
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