From 8e7991a52edb3eb8bd1a44ceb7f6d97108748c8c Mon Sep 17 00:00:00 2001
From: Rajneesh Chowdury <rajneeshc@google.com>
Date: Tue, 15 Mar 2011 16:20:17 -0700
Subject: Fix for 4087846 Crash reported by monkey report (Java/Jni)

Change-Id: I356f975743f5a24e72f33a20ee497a2b12791be6
---
 media/java/android/media/videoeditor/VideoEditorImpl.java | 12 ++++++++++++
 media/jni/mediaeditor/VideoEditorMain.cpp                 | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/media/java/android/media/videoeditor/VideoEditorImpl.java b/media/java/android/media/videoeditor/VideoEditorImpl.java
index 7e1f73aa88fc..608cea0e6cfe 100755
--- a/media/java/android/media/videoeditor/VideoEditorImpl.java
+++ b/media/java/android/media/videoeditor/VideoEditorImpl.java
@@ -899,6 +899,10 @@ public class VideoEditorImpl implements VideoEditor {
             throw new IllegalArgumentException("Surface could not be retrieved from Surface holder");
         }
 
+        if (surface.isValid() == false) {
+            throw new IllegalStateException("Surface is not valid");
+        }
+
         if (timeMs < 0) {
             throw new IllegalArgumentException("requested time not correct");
         } else if (timeMs > mDurationMs) {
@@ -1622,6 +1626,10 @@ public class VideoEditorImpl implements VideoEditor {
             throw new IllegalArgumentException("Surface could not be retrieved from surface holder");
         }
 
+        if (surface.isValid() == false) {
+            throw new IllegalStateException("Surface is not valid");
+        }
+
         if (listener == null) {
             throw new IllegalArgumentException();
         }
@@ -1858,6 +1866,10 @@ public class VideoEditorImpl implements VideoEditor {
             throw new IllegalArgumentException("Surface could not be retrieved from surface holder");
         }
 
+        if (surface.isValid() == false) {
+            throw new IllegalStateException("Surface is not valid");
+        }
+
         if (mMANativeHelper != null) {
             mMANativeHelper.clearPreviewSurface(surface);
         } else {
diff --git a/media/jni/mediaeditor/VideoEditorMain.cpp b/media/jni/mediaeditor/VideoEditorMain.cpp
index 8cda14eee2e4..11e2a5eb076a 100755
--- a/media/jni/mediaeditor/VideoEditorMain.cpp
+++ b/media/jni/mediaeditor/VideoEditorMain.cpp
@@ -557,6 +557,10 @@ static void videoEditor_clearSurface(JNIEnv* pEnv,
 
     Surface* const p = (Surface*)pEnv->GetIntField(surface, surface_native);
     sp<Surface> previewSurface = sp<Surface>(p);
+    // Validate the mSurface's mNativeSurface field
+    videoEditJava_checkAndThrowIllegalStateException(&needToBeLoaded, pEnv,
+                                                (NULL == previewSurface.get()),
+                                                "mNativeSurface is null");
 
     frameStr.pBuffer = M4OSA_NULL;
     frameStr.timeMs = 0;
@@ -634,6 +638,10 @@ static int videoEditor_renderPreviewFrame(JNIEnv* pEnv,
 
     Surface* const p = (Surface*)pEnv->GetIntField(mSurface, surface_native);
     sp<Surface> previewSurface = sp<Surface>(p);
+    // Validate the mSurface's mNativeSurface field
+    videoEditJava_checkAndThrowIllegalStateException(&needToBeLoaded, pEnv,
+                                                (NULL == previewSurface.get()),
+                                                "mNativeSurface is null");
 
     /* Determine the total number of clips, total duration*/
     uiNumberOfClipsInStoryBoard = pContext->pEditSettings->uiClipNumber;
@@ -2058,6 +2066,10 @@ videoEditor_startPreview(
     Surface* const p = (Surface*)pEnv->GetIntField(mSurface, surface_native);
 
     sp<Surface> previewSurface = sp<Surface>(p);
+    // Validate the mSurface's mNativeSurface field
+    videoEditJava_checkAndThrowIllegalStateException(&needToBeLoaded, pEnv,
+                                                (NULL == previewSurface.get()),
+                                                "mNativeSurface is null");
 
     result =  pContext->mPreviewController->setSurface(previewSurface);
     videoEditJava_checkAndThrowRuntimeException(&needToBeLoaded, pEnv,
-- 
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