1 files changed, 5 insertions, 1 deletions
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 2b76660..6d1f8c6 100755
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -44,6 +44,7 @@ namespace android {
 
 static const int64_t kMinStreamableFileSizeInBytes = 5 * 1024 * 1024;
 static const int64_t kMax32BitFileSize = 0x007fffffffLL;
+static const int64_t kMax64BitFileSize = 0x00ffffffffLL; //fat32 max size limited to 4GB
 static const uint8_t kNalUnitTypeSeqParamSet = 0x07;
 static const uint8_t kNalUnitTypePicParamSet = 0x08;
 static const int64_t kInitialDelayTimeUs     = 700000LL;
@@ -525,11 +526,14 @@ status_t MPEG4Writer::start(MetaData *param) {
         mIsFileSizeLimitExplicitlyRequested = true;
     }
 
-    int32_t use64BitOffset;
+    int32_t use64BitOffset = 0;
     if (param &&
         param->findInt32(kKey64BitFileOffset, &use64BitOffset) &&
         use64BitOffset) {
         mUse32BitOffset = false;
+        if (mMaxFileSizeLimitBytes == 0) {
+            mMaxFileSizeLimitBytes = kMax64BitFileSize;
+        }
     }
 
     if (mUse32BitOffset) {