AudioPolicyManager: force encoded surround setting

Bug: 26373761
Change-Id: I0f7a486bf1aa7a27f15cf220e2c75ef23f8f8536
Signed-off-by: Phil Burk <philburk@google.com>
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index fb9b46b..38700fc 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -582,6 +582,9 @@
         // Audio Policy Engine Interface.
         AudioPolicyManagerInterface *mEngine;
 private:
+        // Add or remove AC3 DTS encodings based on user preferences.
+        void filterSurroundFormats(FormatVector &formats);
+
         // If any, resolve any "dynamic" fields of an Audio Profiles collection
         void updateAudioProfiles(audio_io_handle_t ioHandle, AudioProfileVector &profiles);