diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 834b88a695..88d600c50f 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1339,15 +1339,15 @@ typedef struct AVCodecContext {
     unsigned dsp_mask;
 #define FF_MM_FORCE    0x80000000 /* Force usage of selected flags (OR) */
     /* lower 16 bits - CPU features */
-#define FF_MM_MMX      0x0001 /* standard MMX */
-#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
-#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
-#define FF_MM_SSE      0x0008 /* SSE functions */
-#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
-#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
-#define FF_MM_SSE3     0x0040 /* Prescott SSE3 functions */
-#define FF_MM_SSSE3    0x0080 /* Conroe SSSE3 functions */
-#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
+#define FF_MM_MMX      0x0001 ///< standard MMX
+#define FF_MM_3DNOW    0x0004 ///< AMD 3DNOW
+#define FF_MM_MMXEXT   0x0002 ///< SSE integer functions or AMD MMX ext
+#define FF_MM_SSE      0x0008 ///< SSE functions
+#define FF_MM_SSE2     0x0010 ///< PIV SSE2 functions
+#define FF_MM_3DNOWEXT 0x0020 ///< AMD 3DNowExt
+#define FF_MM_SSE3     0x0040 ///< Prescott SSE3 functions
+#define FF_MM_SSSE3    0x0080 ///< Conroe SSSE3 functions
+#define FF_MM_IWMMXT   0x0100 ///< XScale IWMMXT
 
     /**
      * bits per sample/pixel from the demuxer (needed for huffyuv).