drm/1.4/IDrmPlugin.hal

/**
 * Copyright (C) 2021 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.hardware.drm@1.4;

import @1.0::Status;
import @1.0::SessionId;
import @1.1::SecurityLevel;
import @1.2::IDrmPlugin;
import @1.4::LogMessage;
import @1.4::Status;

/**
 * IDrmPlugin is used to interact with a specific drm plugin that was
 * created by IDrmFactory::createPlugin. A drm plugin provides methods for
 * obtaining drm keys to be used by a codec to decrypt protected video
 * content.
 */
interface IDrmPlugin extends @1.2::IDrmPlugin {

    /**
     * Check if the specified mime-type & security level require a secure decoder
     * component.
     *
     * @param mime The content mime-type
     * @param level the requested security level
     * @return secureRequired must be true if and only if a secure decoder is required
     * for the specified mime-type & security level
     */
    requiresSecureDecoder(string mime, @1.1::SecurityLevel level) generates (bool secureRequired);

    /**
     * Check if the specified mime-type requires a secure decoder component
     * at the highest security level supported on the device.
     *
     * @param mime The content mime-type
     * @return secureRequired must be true if and only if a secure decoder is required
     * for the specified mime-type
     */
    requiresSecureDecoderDefault(string mime) generates (bool secureRequired);

    /**
     * Set playback id of a drm session. The playback id can be used to join drm session metrics
     * with metrics from other low level media components, e.g. codecs, or metrics from the high
     * level player.
     *
     * @param sessionId drm session id
     * @param playbackId high level playback id
     * @return status the status of the call. The status must be OK on success, or
     *     ERROR_DRM_SESSION_NOT_OPENED if the drm session cannot be found
     */
    setPlaybackId(SessionId sessionId, string playbackId) generates (@1.0::Status status);

    /**
     * @return logMessages latest plugin level log messages. Can be used
     *     by apps in diagnosis of errors.
     * @return status the status of the call. The status must be:
     *     OK on success;
     *     GENERAL_OEM_ERROR on OEM-provided, low-level component failures;
     *     GENERAL_PLUGIN_ERROR on unexpected plugin-level errors.
     */
    getLogMessages() generates (@1.4::Status status, vec<LogMessage> logMessages);

};