diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index 5952d92463..a8e060b66e 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -1322,7 +1322,7 @@ void ff_block_permute(INT16 *block, UINT8 *permutation, const UINT8 *scantable,
     INT16 temp[64];
     
     if(last<=0) return;
-    if(permutation[1]==1) return; //FIXME its ok but not clean and might fail for some perms
+    //if(permutation[1]==1) return; //FIXME its ok but not clean and might fail for some perms
 
     for(i=0; i<=last; i++){
         const int j= scantable[i];
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index 7f21f331e2..5e67ebda3a 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -3074,7 +3074,8 @@ static int dct_quantize_c(MpegEncContext *s,
     *overflow= s->max_qcoeff < max; //overflow might have happend
     
     /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
-    ff_block_permute(block, s->idct_permutation, scantable, last_non_zero);
+    if (s->idct_permutation_type != FF_NO_IDCT_PERM)
+	ff_block_permute(block, s->idct_permutation, scantable, last_non_zero);
 
     return last_non_zero;
 }