Add new DemuxFilterStatus NO_DATA

Bug: 260651195
Test: test on cf_x86_tv-userdebug
Change-Id: I56619579ebf09b49d288254f2d77320cd5575d69
diff --git a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl
index 36b40ea..1dc593a 100644
--- a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl
+++ b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl
@@ -39,4 +39,5 @@
   LOW_WATER = 2,
   HIGH_WATER = 4,
   OVERFLOW = 8,
+  NO_DATA = 16,
 }
diff --git a/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl b/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
index e6f3b63..45a473e 100644
--- a/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
+++ b/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
@@ -46,4 +46,9 @@
      * discarded.
      */
     OVERFLOW = 1 << 3,
+
+    /**
+     * Indicating there is no data coming to the filter.
+     */
+    NO_DATA = 1 << 4,
 }
diff --git a/tv/tuner/aidl/default/Filter.cpp b/tv/tuner/aidl/default/Filter.cpp
index ade265c..59e301d 100644
--- a/tv/tuner/aidl/default/Filter.cpp
+++ b/tv/tuner/aidl/default/Filter.cpp
@@ -691,6 +691,8 @@
         return DemuxFilterStatus::OVERFLOW;
     } else if (availableToRead > highThreshold) {
         return DemuxFilterStatus::HIGH_WATER;
+    } else if (availableToRead == 0) {
+        return DemuxFilterStatus::NO_DATA;
     } else if (availableToRead < lowThreshold) {
         return DemuxFilterStatus::LOW_WATER;
     }