| /* |
| * Copyright 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.media.cts; |
| |
| import android.content.res.AssetFileDescriptor; |
| import android.media.cts.MediaPlayerTestBase.Monitor; |
| import android.media.MediaDataSource; |
| import android.util.Log; |
| |
| import java.io.FileInputStream; |
| import java.io.InputStream; |
| import java.io.IOException; |
| |
| /** |
| * A MediaDataSource that reads from a byte array for use in tests. |
| */ |
| public class TestMediaDataSource extends MediaDataSource { |
| private static final String TAG = "TestMediaDataSource"; |
| |
| private byte[] mData; |
| |
| private boolean mThrowFromReadAt; |
| private boolean mThrowFromGetSize; |
| private Integer mReturnFromReadAt; |
| private Long mReturnFromGetSize; |
| private boolean mIsClosed; |
| |
| // Read an asset fd into a new byte array data source. Closes afd. |
| public static TestMediaDataSource fromAssetFd(AssetFileDescriptor afd) throws IOException { |
| try { |
| InputStream in = afd.createInputStream(); |
| final int size = (int) afd.getDeclaredLength(); |
| byte[] data = new byte[(int) size]; |
| int writeIndex = 0; |
| int numRead = 0; |
| do { |
| numRead = in.read(data, writeIndex, size - writeIndex); |
| writeIndex += numRead; |
| } while (numRead >= 0); |
| return new TestMediaDataSource(data); |
| } finally { |
| afd.close(); |
| } |
| } |
| |
| public TestMediaDataSource(byte[] data) { |
| mData = data; |
| } |
| |
| @Override |
| public synchronized int readAt(long position, byte[] buffer, int offset, int size) |
| throws IOException { |
| if (mThrowFromReadAt) { |
| throw new IOException("Test exception from readAt()"); |
| } |
| if (mReturnFromReadAt != null) { |
| return mReturnFromReadAt; |
| } |
| |
| // Clamp reads past the end of the source. |
| if (position >= mData.length) { |
| return -1; // -1 indicates EOF |
| } |
| if (position + size > mData.length) { |
| size -= (position + size) - mData.length; |
| } |
| System.arraycopy(mData, (int)position, buffer, offset, size); |
| return size; |
| } |
| |
| @Override |
| public synchronized long getSize() throws IOException { |
| if (mThrowFromGetSize) { |
| throw new IOException("Test exception from getSize()"); |
| } |
| if (mReturnFromGetSize != null) { |
| return mReturnFromGetSize; |
| } |
| |
| Log.v(TAG, "getSize: " + mData.length); |
| return mData.length; |
| } |
| |
| // Note: it's fine to keep using this data source after closing it. |
| @Override |
| public synchronized void close() { |
| Log.v(TAG, "close()"); |
| mIsClosed = true; |
| } |
| |
| // Whether close() has been called. |
| public synchronized boolean isClosed() { |
| return mIsClosed; |
| } |
| |
| public void throwFromReadAt() { |
| mThrowFromReadAt = true; |
| } |
| |
| public void throwFromGetSize() { |
| mThrowFromGetSize = true; |
| } |
| |
| public void returnFromReadAt(int numRead) { |
| mReturnFromReadAt = numRead; |
| } |
| |
| public void returnFromGetSize(long size) { |
| mReturnFromGetSize = size; |
| } |
| } |
| |