Add Descrambler and Lnb Client interfaces

Test: make libmedia_tv_tuner
Bug: 174095851
Change-Id: I6140f8554b1c45a40cad7b6ba80d48402861ead4
diff --git a/media/jni/tuner/DescramblerClient.h b/media/jni/tuner/DescramblerClient.h
new file mode 100644
index 0000000..8af6883
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+++ b/media/jni/tuner/DescramblerClient.h
@@ -0,0 +1,89 @@
+/*
+ * 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.
+ */
+
+#ifndef _ANDROID_MEDIA_TV_DESCRAMBLER_CLIENT_H_
+#define _ANDROID_MEDIA_TV_DESCRAMBLER_CLIENT_H_
+
+//#include <aidl/android/media/tv/tuner/ITunerDescrambler.h>
+#include <android/hardware/tv/tuner/1.0/IDescrambler.h>
+#include <android/hardware/tv/tuner/1.1/types.h>
+
+#include "DemuxClient.h"
+#include "FilterClient.h"
+
+//using ::aidl::android::media::tv::tuner::ITunerDescrambler;
+
+using ::android::hardware::tv::tuner::V1_0::IDescrambler;
+using ::android::hardware::tv::tuner::V1_0::Result;
+using ::android::hardware::tv::tuner::V1_0::DemuxPid;
+
+using namespace std;
+
+namespace android {
+
+struct DescramblerClient : public RefBase {
+
+public:
+    // TODO: pending hidl interface
+    DescramblerClient();
+    ~DescramblerClient();
+
+    // TODO: remove after migration to Tuner Service is done.
+    void setHidlDescrambler(sp<IDescrambler> descrambler);
+
+     /**
+     * Set a demux as source of the descrambler.
+     */
+    Result setDemuxSource(sp<DemuxClient> demuxClient);
+
+    /**
+     * Set a key token to link descrambler to a key slot.
+     */
+    Result setKeyToken(vector<uint8_t> keyToken);
+
+    /**
+     * Add packets' PID to the descrambler for descrambling.
+     */
+    Result addPid(DemuxPid pid, sp<FilterClient> optionalSourceFilter);
+
+    /**
+     * Remove packets' PID from the descrambler.
+     */
+    Result removePid(DemuxPid pid, sp<FilterClient> optionalSourceFilter);
+
+    /**
+     * Close a new interface of ITunerDescrambler.
+     */
+    Result close();
+
+private:
+    /**
+     * An AIDL Tuner Descrambler Singleton assigned at the first time the Tuner Client
+     * opens a descrambler. Default null when descrambler is not opened.
+     */
+    // TODO: pending on aidl interface
+    //shared_ptr<ITunerDescrambler> mTunerDescrambler;
+
+    /**
+     * A Descrambler HAL interface that is ready before migrating to the TunerDescrambler.
+     * This is a temprary interface before Tuner Framework migrates to use TunerService.
+     * Default null when the HAL service does not exist.
+     */
+    sp<IDescrambler> mDescrambler;
+};
+}  // namespace android
+
+#endif  // _ANDROID_MEDIA_TV_DESCRAMBLER_CLIENT_H_