/*
 * Copyright 2020 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 org.hyphonate.megaaudio.recorder;

public abstract class AudioSink {
    /**
     * Called before the stream starts to allow initialization of the sink
     * @param numFrames The number of frames that will be requested in each process() call.
     * @param numChans The number of channels in the stream.
     */
    public void init(int numFrames, int numChans) {}

    public void start() {}
    public void stop(int lastBufferFrames) {}

    /**
     * Process incoming audio data.
     * @param audioData The buffer of audio data.
     * @param numFrames The number of frames of audio to process.
     * @param numChans The number of channels (in the buffer).
     * Note that the recorder will be blocked by this call.
     * Note that the data is assumed to be *interleaved*.
     */
    abstract public void push(final float[] audioData, int numFrames, int numChans);
}