For Widi downscaling feature

BZ: 188797

Follow below steps to enable downscaling
a: Disconnect WIDI;
b: adb shell setprop "widi.video.dscaling.enable" "true";
c: re-connect WIDI

TBD: need WIDI team help
a: Default value: offX = 0; offY = 0; bufWidth = 1920; bufHeight = 1080;
b: Calling "setDownscaling" in "prepare" isn't resonable and has
a time sequence issue, the first video frame hasn't got right DS params
and doecder to a wrong buffer;

Change-Id: I817060bde30d5a60633223ec90c5597ab5e03be0
Signed-off-by: Zhu,Tianyang <tianyang.zhu@intel.com>

2 files changed, 41 insertions, 0 deletions

diff --git a/common/observers/MultiDisplayObserver.cpp b/common/observers/MultiDisplayObserver.cpp
index 488f07f..bc76092 100644
--- a/common/observers/MultiDisplayObserver.cpp
+++ b/common/observers/MultiDisplayObserver.cpp
@@ -103,6 +103,7 @@ MultiDisplayObserver::MultiDisplayObserver()
       mMDSInfoProvider(NULL),
       mMDSConnObserver(NULL),
       mMDSCallback(NULL),
+      mMDSDecoderConfig(NULL),
       mLock(),
       mCondition(),
       mThreadLoopCount(0),
@@ -172,6 +173,11 @@ bool MultiDisplayObserver::initMDSClient()
         ETRACE("failed to create mds video Client");
         return false;
     }
+    mMDSDecoderConfig = mds->getDecoderConfig();
+    if (mMDSDecoderConfig.get() == NULL) {
+        ETRACE("failed to create mds decoder Client");
+        return false;
+    }
 
     status_t ret = mMDSCbRegistrar->registerCallback(mMDSCallback);
     if (ret != NO_ERROR) {
@@ -197,6 +203,7 @@ void MultiDisplayObserver::deinitMDSClient()
     mMDSInfoProvider = NULL;
     mMDSCallback = NULL;
     mMDSConnObserver = NULL;
+    mMDSDecoderConfig = NULL;
 }
 
 bool MultiDisplayObserver::initMDSClientAsync()
@@ -409,6 +416,31 @@ status_t MultiDisplayObserver::notifyWidiConnectionStatus( bool connected)
     return mMDSConnObserver->updateWidiConnectionStatus(connected);
 }
 
+status_t MultiDisplayObserver::setDecoderOutputResolution(
+        int sessionID,
+        int32_t width, int32_t height,
+        int32_t offX, int32_t offY,
+        int32_t bufWidth, int32_t bufHeight)
+{
+    Mutex::Autolock _l(mLock);
+    if (mMDSDecoderConfig.get() == NULL) {
+        return NO_INIT;
+    }
+    if (width <= 0 || height <= 0 ||
+            offX < 0 || offY < 0 ||
+            bufWidth <= 0 || bufHeight <= 0) {
+        ETRACE(" Invalid parameter: %dx%d, %dx%d, %dx%d", width, height, offX, offY, bufWidth, bufHeight);
+        return UNKNOWN_ERROR;
+    }
+
+    status_t ret = mMDSDecoderConfig->setDecoderOutputResolution(sessionID, width, height, offX, offY, bufWidth, bufHeight);
+    if (ret == NO_ERROR) {
+        ITRACE("Video Session[%d] output resolution %dx%d ", sessionID, width, height);
+    }
+    return ret;
+}
+
+
 #endif //TARGET_HAS_MULTIPLE_DISPLAY
 
 } // namespace intel
diff --git a/common/observers/MultiDisplayObserver.h b/common/observers/MultiDisplayObserver.h
index 5c6f939..f434c4d 100644
--- a/common/observers/MultiDisplayObserver.h
+++ b/common/observers/MultiDisplayObserver.h
@@ -79,6 +79,10 @@ public:
     int  getVideoSessionNumber();
     bool isExternalDeviceTimingFixed() const;
     status_t notifyWidiConnectionStatus(bool connected);
+    status_t setDecoderOutputResolution(int sessionID,
+            int32_t width, int32_t height,
+            int32_t offX,  int32_t offY,
+            int32_t bufWidth, int32_t bufHeight);
 
 private:
     bool isMDSRunning();
@@ -101,6 +105,7 @@ private:
     sp<IMultiDisplayCallbackRegistrar> mMDSCbRegistrar;
     sp<IMultiDisplayInfoProvider> mMDSInfoProvider;
     sp<IMultiDisplayConnectionObserver> mMDSConnObserver;
+    sp<IMultiDisplayDecoderConfig> mMDSDecoderConfig;
     sp<MultiDisplayCallback> mMDSCallback;
     mutable Mutex mLock;
     Condition mCondition;
@@ -129,6 +134,10 @@ public:
     int  getVideoSessionNumber() { return 0; }
     bool isExternalDeviceTimingFixed() const { return false; }
     status_t notifyWidiConnectionStatus(bool connected) { return NO_ERROR; }
+    status_t setDecoderOutputResolution(
+            int sessionID,
+            int32_t width, int32_t height,
+            int32_t, int32_t, int32_t, int32_t) { return NO_ERROR; }
 };
 
 #endif //TARGET_HAS_MULTIPLE_DISPLAY