c209a06cfd
Adds android.media.DataSource, which is modeled after its native namesake, and a new method on MediaExtractor that lets apps specify their implementation of a DataSource as the source of data for the extractor. Change-Id: If1b169bd18d2691ebc4f8996494dfc8ee0894b6c
44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.media;
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import java.io.Closeable;
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/**
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* An abstraction for a media data source, e.g. a file or an http stream
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* {@hide}
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*/
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public interface DataSource extends Closeable {
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/**
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* Reads data from the data source at the requested position
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*
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* @param offset where in the source to read
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* @param buffer the buffer to read the data into
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* @param size how many bytes to read
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* @return the number of bytes read, or -1 if there was an error
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*/
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public int readAt(long offset, byte[] buffer, int size);
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/**
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* Gets the size of the data source.
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*
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* @return size of data source, or -1 if the length is unknown
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*/
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public long getSize();
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}
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