| /* |
| * Copyright (C) 2012 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; |
| |
| import java.io.Closeable; |
| |
| /** |
| * An abstraction for a media data source, e.g. a file or an http stream |
| * {@hide} |
| */ |
| public interface DataSource extends Closeable { |
| /** |
| * Reads data from the data source at the requested position |
| * |
| * @param offset where in the source to read |
| * @param buffer the buffer to read the data into |
| * @param size how many bytes to read |
| * @return the number of bytes read, or -1 if there was an error |
| */ |
| public int readAt(long offset, byte[] buffer, int size); |
| |
| /** |
| * Gets the size of the data source. |
| * |
| * @return size of data source, or -1 if the length is unknown |
| */ |
| public long getSize(); |
| } |