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/*
* Copyright (C) 2014 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.midi;
import java.io.IOException;
/**
* Interface for receiving data from a MIDI device.
*
* CANDIDATE FOR PUBLIC API
* @hide
*/
public interface MidiReceiver {
/**
* Called to pass MIDI data to the receiver.
*
* NOTE: the msg array parameter is only valid within the context of this call.
* The msg bytes should be copied by the receiver rather than retaining a reference
* to this parameter.
* Also, modifying the contents of the msg array parameter may result in other receivers
* in the same application receiving incorrect values in their post() method.
*
* @param msg a byte array containing the MIDI data
* @param offset the offset of the first byte of the data in the byte array
* @param count the number of bytes of MIDI data in the array
* @param timestamp the timestamp of the message (based on {@link java.lang.System#nanoTime}
* @throws IOException
*/
public void post(byte[] msg, int offset, int count, long timestamp) throws IOException;
}
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