Adding a DVR Record default implementation in Tuner HAL 1.0

Test: cuttlefish
Bug: 135709325
Change-Id: I415426d6ec048bdd2ae61a3c5142ad02f1d7f1e4
diff --git a/tv/tuner/1.0/default/Demux.h b/tv/tuner/1.0/default/Demux.h
index 037429d..1405d0c 100644
--- a/tv/tuner/1.0/default/Demux.h
+++ b/tv/tuner/1.0/default/Demux.h
@@ -81,11 +81,14 @@
     virtual Return<Result> disconnectCiCam() override;
 
     // Functions interacts with Tuner Service
-    void stopBroadcastInput();
+    void stopFrontendInput();
     Result removeFilter(uint32_t filterId);
+    bool attachRecordFilter(int filterId);
+    bool detachRecordFilter(int filterId);
     Result startFilterHandler(uint32_t filterId);
     void updateFilterOutput(uint16_t filterId, vector<uint8_t> data);
     uint16_t getFilterTpid(uint32_t filterId);
+    void setIsRecording(bool isRecording);
 
   private:
     // Tuner service
@@ -101,9 +104,9 @@
         uint32_t filterId;
     };
 
-    Result startBroadcastInputLoop();
-    static void* __threadLoopBroadcast(void* user);
-    void broadcastInputThreadLoop();
+    Result startFrontendInputLoop();
+    static void* __threadLoopFrontend(void* user);
+    void frontendInputThreadLoop();
 
     /**
      * To create a FilterMQ with the the next available Filter ID.
@@ -117,9 +120,13 @@
     /**
      * A dispatcher to read and dispatch input data to all the started filters.
      * Each filter handler handles the data filtering/output writing/filterEvent updating.
+     * Note that recording filters are not included.
      */
-    bool startFilterDispatcher();
-    void startTsFilter(vector<uint8_t> data);
+    bool startBroadcastFilterDispatcher();
+    void startBroadcastTsFilter(vector<uint8_t> data);
+
+    void sendFrontendInputToRecord(vector<uint8_t> data);
+    bool startRecordFilterDispatcher();
 
     uint32_t mDemuxId;
     uint32_t mCiCamId;
@@ -141,26 +148,40 @@
      */
     set<uint32_t> mUnusedFilterIds;
     /**
+     * Record all the attached record filter Ids.
+     * Any removed filter id should be removed from this set.
+     */
+    set<uint32_t> mRecordFilterIds;
+    /**
      * A list of created FilterMQ ptrs.
      * The array number is the filter ID.
      */
     std::map<uint32_t, sp<Filter>> mFilters;
 
+    /**
+     * Local reference to the opened DVR object.
+     */
+    sp<Dvr> mDvr;
+
     // Thread handlers
-    pthread_t mBroadcastInputThread;
+    pthread_t mFrontendInputThread;
     /**
      * If a specific filter's writing loop is still running
      */
-    bool mBroadcastInputThreadRunning;
+    bool mFrontendInputThreadRunning;
     bool mKeepFetchingDataFromFrontend;
     /**
+     * If the dvr recording is running.
+     */
+    bool mIsRecording = false;
+    /**
      * Lock to protect writes to the FMQs
      */
     std::mutex mWriteLock;
     /**
      * Lock to protect writes to the input status
      */
-    std::mutex mBroadcastInputThreadLock;
+    std::mutex mFrontendInputThreadLock;
 
     // temp handle single PES filter
     // TODO handle mulptiple Pes filters