content: /*
  Copyright (C) 2011-2020 Maksim Petrov
  
  Redistribution and use in source and binary forms, with or without
  modification, are permitted for widgets, plugins, applications and other software
  which communicate with Poweramp application on Android platform.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
  
  package com.maxmpz.poweramp.player;
  
  import android.annotation.SuppressLint;
  import java.nio.ByteBuffer;
  import java.nio.FloatBuffer;
  import org.eclipse.jdt.annotation.NonNull;
  
  /**
   * Some useful track provider related helper methods
   */
  public class TrackProviderHelper {
  	private static final String TAG = "TrackProviderHelper";
  	private static final boolean LOG = false;
  
  	/** Converts bytes to float array */
  	public static float @NonNull[] bytesToFloats(byte @NonNull[] waveBytes) {
  		if(waveBytes.length == 0) {
  			return new float[0];
  		}
  		@SuppressLint("InlinedApi")
  		int floatSize = waveBytes.length / Float.BYTES;
  
  		float[] wave = new float[floatSize]; // Alloc
  		ByteBuffer bb = ByteBuffer.wrap(waveBytes); // Allocs
  		bb.asFloatBuffer().get(wave); // Alloc
  
  		return wave;
  	}
  
  	/** Converts float array to bytes */
  	public static byte @NonNull[] floatsToBytes(float @NonNull[] wave) {
  		if(wave.length == 0) {
  			return new byte[0];
  		}
  		@SuppressLint("InlinedApi")
  		ByteBuffer bb = ByteBuffer.allocate(wave.length * Float.BYTES);
  		FloatBuffer fb = bb.asFloatBuffer(); // Allocs
  		fb.put(wave);
  		return bb.array();
  	}
  }
  