fix: abs for fft data

Author: GitHubZJY

audiovisualize/src/main/java/com/zjy/audiovisualize/view/AudioVisualizeView.java

@@ -55,7 +55,7 @@ public abstract class AudioVisualizeView extends View implements MediaManagerLis
     /**
      * audio data transform by hypot
      */
-    protected byte[] mRawAudioBytes;
+    protected float[] mRawAudioBytes;
 
     protected RectF mRect;
     protected Paint mPaint;
@@ -160,7 +160,7 @@ public void onPrepare() {
     }
 
     @Override
-    public void onFftDataCapture(byte[] parseData) {
+    public void onFftDataCapture(float[] parseData) {
         if (!isVisualizationEnabled) {
             return;
         }

audiovisualize/src/main/java/com/zjy/audiovisualize/view/CircleVisualizeView.java

@@ -43,9 +43,6 @@ protected void drawChild(Canvas canvas) {
         mPaint.setStyle(Paint.Style.FILL);
         mPath.moveTo(0, centerY);
         for (int i = 0; i < mSpectrumCount; i++) {
-            if (mRawAudioBytes[i] < 0) {
-                mRawAudioBytes[i] = 127;
-            }
             double angel = ((360d/ mSpectrumCount *1.0d) * (i+1));
             double startX = centerX + (radius + mStrokeWidth/2) * Math.sin(Math.toRadians(angel));
             double startY = centerY + (radius + mStrokeWidth/2) * Math.cos(Math.toRadians(angel));

audiovisualize/src/main/java/com/zjy/audiovisualize/view/GrainVisualizeView.java

@@ -46,9 +46,6 @@ protected void drawChild(Canvas canvas) {
         mPaint.setStrokeWidth(mStrokeWidth);
         mPaint.setStyle(Paint.Style.FILL);
         for (int i = 0; i < mSpectrumCount; i++) {
-            if (mRawAudioBytes[i] < 0) {
-                mRawAudioBytes[i] = 127;
-            }
             switch (mOrientation) {
                 case HORIZONTAL_LINE_TOP:
                     drawGrain(canvas, mRect.width() * i / mSpectrumCount, mRect.height() / 2, 2 + mRect.height() / 2 - mRawAudioBytes[i]);

audiovisualize/src/main/java/com/zjy/audiovisualize/view/NetVisualizeView.java

@@ -45,9 +45,6 @@ protected void drawChild(Canvas canvas) {
         mPaint.setStyle(Paint.Style.FILL);
         mPath.moveTo(0, centerY);
         for (int i = 0; i < mSpectrumCount; i++) {
-            if (mRawAudioBytes[i] < 0) {
-                mRawAudioBytes[i] = 127;
-            }
 
             double angel = ((360d/ mSpectrumCount *1.0d) * (i+1));
             double startX = centerX + (radius + mStrokeWidth/2) * Math.sin(Math.toRadians(angel));

audiovisualize/src/main/java/com/zjy/audiovisualize/view/ReflectVisualizeView.java

@@ -38,9 +38,6 @@ protected void drawChild(Canvas canvas) {
         mPaint.setStrokeWidth(mStrokeWidth);
         mPaint.setStyle(Paint.Style.FILL);
         for (int i = 0; i < mSpectrumCount; i++) {
-            if (mRawAudioBytes[i] < 0) {
-                mRawAudioBytes[i] = 127;
-            }
             canvas.drawLine(mRect.width() * i / mSpectrumCount, mRect.height() / 2,mRect.width() * i / mSpectrumCount, 2 + mRect.height() / 2 - mSpectrumRatio * mRawAudioBytes[i], mPaint);
             canvas.drawLine(mRect.width() * i / mSpectrumCount, mRect.height() / 2,mRect.width() * i / mSpectrumCount, 2 + mRect.height() / 2 + mSpectrumRatio * mRawAudioBytes[i], mPaint);
         }

audiovisualize/src/main/java/com/zjy/audiovisualize/view/SingleVisualizeView.java

@@ -46,9 +46,6 @@ protected void drawChild(Canvas canvas) {
         mPaint.setStrokeWidth(mStrokeWidth);
         mPaint.setStyle(Paint.Style.FILL);
         for (int i = 0; i < mSpectrumCount; i++) {
-            if (mRawAudioBytes[i] < 0) {
-                mRawAudioBytes[i] = 127;
-            }
             switch (mOrientation) {
                 case HORIZONTAL_LINE_TOP:
                     canvas.drawLine(mRect.width() * i / mSpectrumCount, mRect.height() / 2,mRect.width() * i / mSpectrumCount, 2 + mRect.height() / 2 - mRawAudioBytes[i], mPaint);

audiovisualize/src/main/java/com/zjy/audiovisualize/view/WaveVisualizeView.java

@@ -40,9 +40,6 @@ protected void drawChild(Canvas canvas) {
         mPath.moveTo(0, centerY);
 
         for (int i = 0; i < mSpectrumCount; i++) {
-            if (mRawAudioBytes[i] < 0) {
-                mRawAudioBytes[i] = 127;
-            }
             mPath.lineTo(mRect.width() * i / mSpectrumCount, 2 + mRect.height() / 2 + mRawAudioBytes[i]);
         }
         mPath.lineTo(mRect.width(), centerY);

audiovisualize/src/main/java/com/zjy/audiovisualize/visualize/VisualizeCallback.java

@@ -7,6 +7,6 @@
  */
 public interface VisualizeCallback {
 
-    void onFftDataCapture(byte[] parseData);
+    void onFftDataCapture(float[] parseData);
 
 }

audiovisualize/src/main/java/com/zjy/audiovisualize/visualize/VisualizerHelper.java

@@ -43,16 +43,16 @@ public void onWaveFormDataCapture(Visualizer visualizer, byte[] bytes,
             @Override
             public void onFftDataCapture(Visualizer visualizer, byte[] fft,
                                          int samplingRate) {
-                byte[] model = new byte[fft.length / 2 + 1];
-                model[0] = (byte) Math.abs(fft[1]);
+                float[] model = new float[fft.length / 2 + 1];
+                model[0] = (float) Math.abs(fft[1]);
                 int j = 1;
 
                 for (int i = 2; i < mCount *2;) {
 
-                    model[j] = (byte) Math.hypot(fft[i], fft[i + 1]);
+                    model[j] = (float) Math.hypot(fft[i], fft[i + 1]);
                     i += 2;
                     j++;
-
+                    model[j] = (float) Math.abs(fft[j]);
                 }
                 if (mCallback != null) {
                     mCallback.onFftDataCapture(model);