https://github.com/steelkiwi/AndroidRecording

Android Recording library offers convenient tools for audio/video recording and playback
https://github.com/steelkiwi/AndroidRecording

Last synced: 3 months ago
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Android Recording library offers convenient tools for audio/video recording and playback

• Host: GitHub
• URL: https://github.com/steelkiwi/AndroidRecording
• Owner: steelkiwi
• License: apache-2.0
• Created: 2013-11-11T15:49:55.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2018-02-03T05:57:04.000Z (almost 7 years ago)
• Last Synced: 2024-07-01T10:55:42.103Z (4 months ago)
• Language: Java
• Size: 727 KB
• Stars: 420
• Watchers: 31
• Forks: 145
• Open Issues: 14
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
Android Recording Library

=======================================

Android Recording library offers convenient tools for audio/video recording and playback.

For audio it uses:

* AudioRecord to capture and save audio signal from microphone

* MediaPlayer with MediaController to play recorded audio

* custom Visualizer (like bar chart) to represent audio signal on screen while recording and during playback

For video it uses:

* Camera and MediaRecorder to record a video of specified resolution

* MediaPlayer with MediaController to play recorded video

* custom SurfaceView with adjustable size to properly display Camera preview and recorded video (in portrait and landscape modes)

Record audio: how to use

------------------------

1. Setup VisualizerView

    ```xml

    

    

    ```

    

    ```java

    visualizerView = (VisualizerView) findViewById(R.id.visualizerView);

    setupVisualizer();

    

    ...

    

    private void setupVisualizer() {

    	Paint paint = new Paint();

    	paint.setStrokeWidth(5f);                     //set bar width

    	paint.setAntiAlias(true);

    	paint.setColor(Color.argb(200, 227, 69, 53)); //set bar color

    	BarGraphRenderer barGraphRendererBottom = new BarGraphRenderer(2, paint, false);

    	visualizerView.addRenderer(barGraphRendererBottom);

    }

```

2. Start recording thread

    ```java

    private void startRecording() {

    	recordingThread = new AudioRecordingThread(fileName, new AudioRecordingHandler() { //pass file name where to store the recorded audio

    		@Override

    		public void onFftDataCapture(final byte[] bytes) {

    			runOnUiThread(new Runnable() {

    				public void run() {

    					if (visualizerView != null) {

    						visualizerView.updateVisualizerFFT(bytes); //update VisualizerView with new audio portion

    					}

    				}

    			});

    		}

    

    		@Override

    		public void onRecordSuccess() {}

    

    		@Override

    		public void onRecordingError() {}

    

    		@Override

    		public void onRecordSaveError() {}

    	});

    	recordingThread.start();

    }

    ```

3. When done, stop recording

    ```java

    private void stopRecording() {

    	if (recordingThread != null) {

    		recordingThread.stopRecording();

    		recordingThread = null;

    	}

    }

    ``` 

Play audio: how to use

------------------------

1. Setup VisualizerView

2. Setup AudioPlaybackManager. It will attach MediaPlayer to a VisualizerView

    ```java

    playbackManager = new AudioPlaybackManager(this, visualizerView, playbackHandler);

    playbackManager.setupPlayback(fileName); //pass file name of the recorded audio

    ``` 

3. Use onscreen MediaController to play/pause/stop/rewind audio

Record video: how to use

------------------------

1. Setup custom SurfaceView (AdaptiveSurfaceView)

    ```xml

    

    ``` 

2. Setup RecordingManager

    ```java

    videoView = (AdaptiveSurfaceView) findViewById(R.id.videoView);

    recordingManager = new VideoRecordingManager(videoView, recordingHandler); //pass reference to custom SurfaceView

    ``` 

3. Choose desired video resolution and pass it to RecordingManager, it will adjust size of AdaptiveSurfaceView to properly display Camera output

    ```java

    recordingManager.setPreviewSize(videoSize);

    ``` 

4. To start recording use

    ```java

    recordingManager.startRecording(fileName, videoSize)

    ``` 

5. To stop recording use

    ```java

    recordingManager.stopRecording()

    ``` 

Play video: how to use

------------------------

1. Setup custom SurfaceView (AdaptiveSurfaceView)

2. Setup VideoPlaybackManager. It will attach MediaPlayer to a VisualizerView

    ```java

    playbackManager = new VideoPlaybackManager(this, videoView, playbackHandler);

    playbackManager.setupPlayback(fileName); //pass file name of the recorded video

    ``` 

3. Use onscreen MediaController to play/pause/stop/rewind video

====================================

For more details, please, see the demo project.