1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.usbtuner.exoplayer.ac3; 18 19 import java.nio.ByteBuffer; 20 21 /** 22 * Decoder for {@link Ac3TrackRenderer}. 23 */ 24 public abstract class Ac3Decoder { 25 /** 26 * Interface definition for AC3 decoder. 27 */ 28 public interface DecodeListener { decodeDone(ByteBuffer resultBuffer, long presentationTimeUs)29 void decodeDone(ByteBuffer resultBuffer, long presentationTimeUs); 30 } 31 32 /** 33 * Creates {@link AC3Decoder} instance that handles AC3 stream decoder. 34 */ createAc3Decoder(boolean isSoftware)35 public static Ac3Decoder createAc3Decoder(boolean isSoftware) { 36 // TODO: Support framework/software-based AC3 decoder if available. 37 return new Ac3PassthroughDecoder(); 38 } 39 startDecoder(DecodeListener listener)40 public abstract void startDecoder(DecodeListener listener); 41 decode(ByteBuffer inputBuffer, long presentationTimeUs)42 public abstract void decode(ByteBuffer inputBuffer, long presentationTimeUs); 43 } 44