Allow users to switch between FE source and DVR source when testing
record/descrambling/broadcast

Test: atest VtsHalTvTunerV1_0TargetTest
Test: atest VtsHalTvTunerV1_1TargetTest
Bug: 182519645
CTS-Coverage-Bug: 184077478
Change-Id: I6c57657ac3539d6a6fb3f63d2ecc9af7f6b9e2dc
diff --git a/tv/tuner/1.1/default/Demux.h b/tv/tuner/1.1/default/Demux.h
index 5212eae..ce46f9c 100644
--- a/tv/tuner/1.1/default/Demux.h
+++ b/tv/tuner/1.1/default/Demux.h
@@ -85,6 +85,7 @@
     void updateMediaFilterOutput(uint64_t filterId, vector<uint8_t> data, uint64_t pts);
     uint16_t getFilterTpid(uint64_t filterId);
     void setIsRecording(bool isRecording);
+    bool isRecording();
     void startFrontendInputLoop();
 
     /**