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/*
* Copyright (C) 2017 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.mozilla.thirdparty.com.google.android.exoplayer2.drm;
import org.mozilla.thirdparty.com.google.android.exoplayer2.drm.ExoMediaDrm.KeyRequest;
import org.mozilla.thirdparty.com.google.android.exoplayer2.drm.ExoMediaDrm.ProvisionRequest;
import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions;
import java.io.IOException;
import java.util.UUID;
/**
* A {@link MediaDrmCallback} that provides a fixed response to key requests. Provisioning is not
* supported. This implementation is primarily useful for providing locally stored keys to decrypt
* ClearKey protected content. It is not suitable for use with Widevine or PlayReady protected
* content.
*/
public final class LocalMediaDrmCallback implements MediaDrmCallback {
private final byte[] keyResponse;
/**
* @param keyResponse The fixed response for all key requests.
*/
public LocalMediaDrmCallback(byte[] keyResponse) {
this.keyResponse = Assertions.checkNotNull(keyResponse);
}
@Override
public byte[] executeProvisionRequest(UUID uuid, ProvisionRequest request) throws IOException {
throw new UnsupportedOperationException();
}
@Override
public byte[] executeKeyRequest(UUID uuid, KeyRequest request) throws Exception {
return keyResponse;
}
}
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