diff --git a/mythtv/libs/libmythtv/mythframe.h b/mythtv/libs/libmythtv/mythframe.h
index 444b676..f27da5b 100644
--- a/mythtv/libs/libmythtv/mythframe.h
+++ b/mythtv/libs/libmythtv/mythframe.h
@@ -95,7 +95,7 @@ static inline void init(VideoFrame *vf, VideoFrameType _codec,
                         const int *p = 0,
                         const int *o = 0,
                         float _aspect = -1.0f, double _rate = -1.0f,
-                        int _aligned = 64) MUNUSED;
+                        int _aligned = 0) MUNUSED;
 static inline void clear(VideoFrame *vf);
 static inline bool compatible(const VideoFrame *a,
                               const VideoFrame *b) MUNUSED;
@@ -284,7 +284,7 @@ static inline int bitsperpixel(VideoFrameType type)
 }

 static inline uint buffersize(VideoFrameType type, int width, int height,
-                              int _aligned = 64)
+                              int _aligned = 16)
 {
     int  type_bpp = bitsperpixel(type);
     uint bpp = type_bpp / 4; /* bits per pixel div common factor */
diff --git a/mythtv/libs/libmythtv/videobuffers.h b/mythtv/libs/libmythtv/videobuffers.h
index 14fed78..b1f93c1 100644
--- a/mythtv/libs/libmythtv/videobuffers.h
+++ b/mythtv/libs/libmythtv/videobuffers.h
@@ -47,7 +47,7 @@ class YUVInfo
 {
   public:
     YUVInfo(uint w, uint h, uint size, const int *p, const int *o,
-            int aligned = 64);
+            int aligned = 0);

   public:
     uint width;