From dbdf5a9c46c4e40698a40a238e2236cafb0f4303 Mon Sep 17 00:00:00 2001
From: Likai Ding <likaid@codeaurora.org>
Date: Thu, 13 Aug 2015 15:36:15 +0800
Subject: SnapdragonCamera: fix screen flash on resuming

Currently preview cover will be hidden shortly after preview started,
but if the actual first frame comes late, the main screen will flash.
Register a oneshot preview callback to hide preview cover.

Change-Id: I81fabf2d97c32fc2112cf4fceef4edd0872439e2
CRs-Fixed: 889021
---
 src/com/android/camera/VideoModule.java | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'src/com/android/camera')

diff --git a/src/com/android/camera/VideoModule.java b/src/com/android/camera/VideoModule.java
index a19dddd05..1ea401ccc 100644
--- a/src/com/android/camera/VideoModule.java
+++ b/src/com/android/camera/VideoModule.java
@@ -1330,6 +1330,13 @@ public class VideoModule implements CameraModule,
                 });
             mCameraDevice.startPreview();
             mPreviewing = true;
+            mCameraDevice.setOneShotPreviewCallback(mHandler,
+                new CameraManager.CameraPreviewDataCallback() {
+                    @Override
+                    public void onPreviewFrame(byte[] data, CameraProxy camera) {
+                        mUI.hidePreviewCover();
+                    }
+                });
             onPreviewStarted();
         } catch (Throwable ex) {
             closeCamera();
-- 
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