diff options
Diffstat (limited to 'src/com/pheelicks/visualizer/VisualizerView.java')
| -rw-r--r-- | src/com/pheelicks/visualizer/VisualizerView.java | 435 |
1 files changed, 259 insertions, 176 deletions
diff --git a/src/com/pheelicks/visualizer/VisualizerView.java b/src/com/pheelicks/visualizer/VisualizerView.java index 78e047e..9ab5e22 100644 --- a/src/com/pheelicks/visualizer/VisualizerView.java +++ b/src/com/pheelicks/visualizer/VisualizerView.java @@ -4,10 +4,8 @@ * Licensed under the MIT license: * http://creativecommons.org/licenses/MIT/ */ -package com.pheelicks.visualizer; -import java.util.HashSet; -import java.util.Set; +package com.pheelicks.visualizer; import android.content.Context; import android.graphics.Bitmap; @@ -19,208 +17,293 @@ import android.graphics.Paint; import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; -import android.media.MediaPlayer; import android.media.audiofx.Visualizer; import android.util.AttributeSet; +import android.util.Log; import android.view.View; +import com.pheelicks.visualizer.renderer.BarGraphRenderer; +import com.pheelicks.visualizer.renderer.CircleBarRenderer; +import com.pheelicks.visualizer.renderer.CircleRenderer; +import com.pheelicks.visualizer.renderer.LineRenderer; import com.pheelicks.visualizer.renderer.Renderer; +import java.util.HashSet; +import java.util.Set; + /** * A class that draws visualizations of data received from a * {@link Visualizer.OnDataCaptureListener#onWaveFormDataCapture } and * {@link Visualizer.OnDataCaptureListener#onFftDataCapture } */ public class VisualizerView extends View { - private static final String TAG = "VisualizerView"; - - private byte[] mBytes; - private byte[] mFFTBytes; - private Rect mRect = new Rect(); - private Visualizer mVisualizer; - - private Set<Renderer> mRenderers; - - private Paint mFlashPaint = new Paint(); - private Paint mFadePaint = new Paint(); - - public VisualizerView(Context context, AttributeSet attrs, int defStyle) - { - super(context, attrs); - init(); - } - - public VisualizerView(Context context, AttributeSet attrs) - { - this(context, attrs, 0); - } - - public VisualizerView(Context context) - { - this(context, null, 0); - } - - private void init() { - mBytes = null; - mFFTBytes = null; - - mFlashPaint.setColor(Color.argb(122, 255, 255, 255)); - mFadePaint.setColor(Color.argb(238, 255, 255, 255)); // Adjust alpha to change how quickly the image fades - mFadePaint.setXfermode(new PorterDuffXfermode(Mode.MULTIPLY)); - - mRenderers = new HashSet<Renderer>(); - } - - /** - * Links the visualizer to a player - * @param player - MediaPlayer instance to link to - */ - public void link(MediaPlayer player) - { - if(player == null) + + private static final String TAG = "VisualizerView"; + + private byte[] mBytes; + private byte[] mFFTBytes; + private Rect mRect = new Rect(); + private Visualizer mVisualizer; + private int mAudioSessionId; + + private Set<Renderer> mRenderers; + + private Paint mFlashPaint = new Paint(); + private Paint mFadePaint = new Paint(); + + public VisualizerView(Context context, AttributeSet attrs, int defStyle) { - throw new NullPointerException("Cannot link to null MediaPlayer"); + super(context, attrs); + init(); } - // Create the Visualizer object and attach it to our media player. - mVisualizer = new Visualizer(player.getAudioSessionId()); - mVisualizer.setCaptureSize(Visualizer.getCaptureSizeRange()[1]); + public VisualizerView(Context context, AttributeSet attrs) + { + this(context, attrs, 0); + } - // Pass through Visualizer data to VisualizerView - Visualizer.OnDataCaptureListener captureListener = new Visualizer.OnDataCaptureListener() + public VisualizerView(Context context) { - @Override - public void onWaveFormDataCapture(Visualizer visualizer, byte[] bytes, - int samplingRate) - { - updateVisualizer(bytes); - } - - @Override - public void onFftDataCapture(Visualizer visualizer, byte[] bytes, - int samplingRate) - { - updateVisualizerFFT(bytes); - } - }; - - mVisualizer.setDataCaptureListener(captureListener, - Visualizer.getMaxCaptureRate() / 2, true, true); - - // Enabled Visualizer and disable when we're done with the stream - mVisualizer.setEnabled(true); - player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() + this(context, null, 0); + } + + private void init() { + mBytes = null; + mFFTBytes = null; + + mFlashPaint.setColor(Color.argb(122, 255, 255, 255)); + mFadePaint.setColor(Color.argb(238, 255, 255, 255)); // Adjust alpha to + // change how + // quickly the + // image fades + mFadePaint.setXfermode(new PorterDuffXfermode(Mode.MULTIPLY)); + + mRenderers = new HashSet<Renderer>(); + } + + /** + * Links the visualizer to a player + * + * @param player - MediaPlayer instance to link to + */ + public void link(int audioSessionId) { - @Override - public void onCompletion(MediaPlayer mediaPlayer) - { - mVisualizer.setEnabled(false); - } - }); - } - - public void addRenderer(Renderer renderer) - { - if(renderer != null) + if (mVisualizer != null && audioSessionId != mAudioSessionId) { + mVisualizer.setEnabled(false); + mVisualizer.release(); + mVisualizer = null; + } + + Log.i(TAG, "session=" + audioSessionId); + mAudioSessionId = audioSessionId; + + if (mVisualizer == null) { + + // Create the Visualizer object and attach it to our media player. + try { + mVisualizer = new Visualizer(audioSessionId); + } catch (Exception e) { + Log.e(TAG, "Error enabling visualizer!", e); + return; + } + mVisualizer.setEnabled(false); + mVisualizer.setCaptureSize(Visualizer.getCaptureSizeRange()[1]); + + // Pass through Visualizer data to VisualizerView + Visualizer.OnDataCaptureListener captureListener = new Visualizer.OnDataCaptureListener() + { + @Override + public void onWaveFormDataCapture(Visualizer visualizer, byte[] bytes, + int samplingRate) + { + updateVisualizer(bytes); + } + + @Override + public void onFftDataCapture(Visualizer visualizer, byte[] bytes, + int samplingRate) + { + updateVisualizerFFT(bytes); + } + }; + + mVisualizer.setDataCaptureListener(captureListener, + (int) (Visualizer.getMaxCaptureRate() * 0.75), true, true); + + } + mVisualizer.setEnabled(true); + + } + + public void unlink() { + if (mVisualizer != null) { + mVisualizer.setEnabled(false); + mVisualizer.release(); + mVisualizer = null; + } + } + + public void addRenderer(Renderer renderer) { - mRenderers.add(renderer); - } - } - - public void clearRenderers() - { - mRenderers.clear(); - } - - /** - * Call to release the resources used by VisualizerView. Like with the - * MediaPlayer it is good practice to call this method - */ - public void release() - { - mVisualizer.release(); - } - - /** - * Pass data to the visualizer. Typically this will be obtained from the - * Android Visualizer.OnDataCaptureListener call back. See - * {@link Visualizer.OnDataCaptureListener#onWaveFormDataCapture } - * @param bytes - */ - public void updateVisualizer(byte[] bytes) { - mBytes = bytes; - invalidate(); - } - - /** - * Pass FFT data to the visualizer. Typically this will be obtained from the - * Android Visualizer.OnDataCaptureListener call back. See - * {@link Visualizer.OnDataCaptureListener#onFftDataCapture } - * @param bytes - */ - public void updateVisualizerFFT(byte[] bytes) { - mFFTBytes = bytes; - invalidate(); - } - - boolean mFlash = false; - - /** - * Call this to make the visualizer flash. Useful for flashing at the start - * of a song/loop etc... - */ - public void flash() { - mFlash = true; - invalidate(); - } - - Bitmap mCanvasBitmap; - Canvas mCanvas; - - - @Override - protected void onDraw(Canvas canvas) { - super.onDraw(canvas); - - // Create canvas once we're ready to draw - mRect.set(0, 0, getWidth(), getHeight()); - - if(mCanvasBitmap == null) + if (renderer != null) + { + mRenderers.add(renderer); + } + } + + public void clearRenderers() { - mCanvasBitmap = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), Config.ARGB_8888); + mRenderers.clear(); } - if(mCanvas == null) + + /** + * Call to release the resources used by VisualizerView. Like with the + * MediaPlayer it is good practice to call this method + */ + public void release() { - mCanvas = new Canvas(mCanvasBitmap); + mVisualizer.release(); } - if (mBytes != null) { - // Render all audio renderers - AudioData audioData = new AudioData(mBytes); - for(Renderer r : mRenderers) - { - r.render(mCanvas, audioData, mRect); - } + /** + * Pass data to the visualizer. Typically this will be obtained from the + * Android Visualizer.OnDataCaptureListener call back. See + * {@link Visualizer.OnDataCaptureListener#onWaveFormDataCapture } + * + * @param bytes + */ + public void updateVisualizer(byte[] bytes) { + mBytes = bytes; + invalidate(); + } + + /** + * Pass FFT data to the visualizer. Typically this will be obtained from the + * Android Visualizer.OnDataCaptureListener call back. See + * {@link Visualizer.OnDataCaptureListener#onFftDataCapture } + * + * @param bytes + */ + public void updateVisualizerFFT(byte[] bytes) { + mFFTBytes = bytes; + invalidate(); + } + + boolean mFlash = false; + + /** + * Call this to make the visualizer flash. Useful for flashing at the start + * of a song/loop etc... + */ + public void flash() { + mFlash = true; + invalidate(); } - if (mFFTBytes != null) { - // Render all FFT renderers - FFTData fftData = new FFTData(mFFTBytes); - for(Renderer r : mRenderers) - { - r.render(mCanvas, fftData, mRect); - } + Bitmap mCanvasBitmap; + Canvas mCanvas; + + @Override + protected void onDraw(Canvas canvas) { + super.onDraw(canvas); + + // Create canvas once we're ready to draw + mRect.set(0, 0, getWidth(), getHeight()); + + if (mCanvasBitmap == null) + { + mCanvasBitmap = Bitmap.createBitmap(canvas.getWidth(), canvas.getHeight(), + Config.ARGB_8888); + } + if (mCanvas == null) + { + mCanvas = new Canvas(mCanvasBitmap); + } + + if (mBytes != null) { + // Render all audio renderers + AudioData audioData = new AudioData(mBytes); + for (Renderer r : mRenderers) + { + r.render(mCanvas, audioData, mRect); + } + } + + if (mFFTBytes != null) { + // Render all FFT renderers + FFTData fftData = new FFTData(mFFTBytes); + for (Renderer r : mRenderers) + { + r.render(mCanvas, fftData, mRect); + } + } + + // Fade out old contents + mCanvas.drawPaint(mFadePaint); + + if (mFlash) + { + mFlash = false; + mCanvas.drawPaint(mFlashPaint); + } + + canvas.drawBitmap(mCanvasBitmap, new Matrix(), null); } - // Fade out old contents - mCanvas.drawPaint(mFadePaint); + // Methods for adding renderers to visualizer + public void addBarGraphRendererBottom() + { + Paint paint = new Paint(); + paint.setStrokeWidth(50f); + paint.setAntiAlias(true); + paint.setColor(Color.argb(200, 56, 138, 252)); + BarGraphRenderer barGraphRendererBottom = new BarGraphRenderer(16, paint, false); + addRenderer(barGraphRendererBottom); + } + + public void addBarGraphRendererTop() { + Paint paint2 = new Paint(); + paint2.setStrokeWidth(12f); + paint2.setAntiAlias(true); + paint2.setColor(Color.argb(200, 181, 111, 233)); + BarGraphRenderer barGraphRendererTop = new BarGraphRenderer(4, paint2, true); + addRenderer(barGraphRendererTop); + } + + public void addCircleBarRenderer() + { + Paint paint = new Paint(); + paint.setStrokeWidth(8f); + paint.setAntiAlias(true); + paint.setXfermode(new PorterDuffXfermode(Mode.LIGHTEN)); + paint.setColor(Color.argb(255, 222, 92, 143)); + CircleBarRenderer circleBarRenderer = new CircleBarRenderer(paint, 32, true); + addRenderer(circleBarRenderer); + } + + public void addCircleRenderer() + { + Paint paint = new Paint(); + paint.setStrokeWidth(3f); + paint.setAntiAlias(true); + paint.setColor(Color.argb(255, 222, 92, 143)); + CircleRenderer circleRenderer = new CircleRenderer(paint, true); + addRenderer(circleRenderer); + } - if(mFlash) + public void addLineRenderer() { - mFlash = false; - mCanvas.drawPaint(mFlashPaint); + Paint linePaint = new Paint(); + linePaint.setStrokeWidth(1f); + linePaint.setAntiAlias(true); + linePaint.setColor(Color.argb(88, 0, 128, 255)); + + Paint lineFlashPaint = new Paint(); + lineFlashPaint.setStrokeWidth(5f); + lineFlashPaint.setAntiAlias(true); + lineFlashPaint.setColor(Color.argb(188, 255, 255, 255)); + LineRenderer lineRenderer = new LineRenderer(linePaint, lineFlashPaint, true); + addRenderer(lineRenderer); } - canvas.drawBitmap(mCanvasBitmap, new Matrix(), null); - } -}
\ No newline at end of file +} |