1 files changed, 2 insertions, 2 deletions
diff --git a/dom/media/mediasource/ContainerParser.cpp b/dom/media/mediasource/ContainerParser.cpp
index 594d8fc26..4ae37d7e9 100644
--- a/dom/media/mediasource/ContainerParser.cpp
+++ b/dom/media/mediasource/ContainerParser.cpp
@@ -588,8 +588,8 @@ public:
       return false;
     }
     size_t header_length = have_crc ? 9 : 7;
-    size_t data_length = (((*aData)[3] & 0x03) << 11) ||
-                         (((*aData)[4] & 0xff) << 3) ||
+    size_t data_length = (((*aData)[3] & 0x03) << 11) |
+                         (((*aData)[4] & 0xff) << 3) |
                          (((*aData)[5] & 0xe0) >> 5);
     uint8_t frames = ((*aData)[6] & 0x03) + 1;
     MOZ_ASSERT(frames > 0);