1 /* 2 * Copyright (C) 2017 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 package com.google.android.exoplayer2.source; 17 18 import com.google.android.exoplayer2.C; 19 import com.google.android.exoplayer2.FormatHolder; 20 import com.google.android.exoplayer2.decoder.DecoderInputBuffer; 21 22 /** 23 * An empty {@link SampleStream}. 24 */ 25 public final class EmptySampleStream implements SampleStream { 26 27 @Override isReady()28 public boolean isReady() { 29 return true; 30 } 31 32 @Override maybeThrowError()33 public void maybeThrowError() { 34 // Do nothing. 35 } 36 37 @Override readData(FormatHolder formatHolder, DecoderInputBuffer buffer, boolean formatRequired)38 public int readData(FormatHolder formatHolder, DecoderInputBuffer buffer, 39 boolean formatRequired) { 40 buffer.setFlags(C.BUFFER_FLAG_END_OF_STREAM); 41 return C.RESULT_BUFFER_READ; 42 } 43 44 @Override skipData(long positionUs)45 public int skipData(long positionUs) { 46 return 0; 47 } 48 } 49