cosmetics: Remove some unnecessary block braces.

libavcodec/motion_est.c

@@ -1290,28 +1290,26 @@ static int ff_estimate_motion_b(MpegEncContext * s,
         break;
     case ME_X1:
     case ME_EPZS:
-       {
         P_LEFT[0] = mv_table[mot_xy - 1][0];
         P_LEFT[1] = mv_table[mot_xy - 1][1];
 
-            if(P_LEFT[0]       > (c->xmax<<shift)) P_LEFT[0]       = (c->xmax<<shift);
+        if (P_LEFT[0] > (c->xmax << shift)) P_LEFT[0] = (c->xmax << shift);
 
         /* special case for first line */
         if (!s->first_slice_line) {
             P_TOP[0]      = mv_table[mot_xy - mot_stride    ][0];
             P_TOP[1]      = mv_table[mot_xy - mot_stride    ][1];
-                P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1         ][0];
-                P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1         ][1];
-                if(P_TOP[1] > (c->ymax<<shift)) P_TOP[1]= (c->ymax<<shift);
-                if(P_TOPRIGHT[0] < (c->xmin<<shift)) P_TOPRIGHT[0]= (c->xmin<<shift);
-                if(P_TOPRIGHT[1] > (c->ymax<<shift)) P_TOPRIGHT[1]= (c->ymax<<shift);
+            P_TOPRIGHT[0] = mv_table[mot_xy - mot_stride + 1][0];
+            P_TOPRIGHT[1] = mv_table[mot_xy - mot_stride + 1][1];
+            if (P_TOP[1] > (c->ymax << shift)) P_TOP[1] = (c->ymax << shift);
+            if (P_TOPRIGHT[0] < (c->xmin << shift)) P_TOPRIGHT[0] = (c->xmin << shift);
+            if (P_TOPRIGHT[1] > (c->ymax << shift)) P_TOPRIGHT[1] = (c->ymax << shift);
 
-                P_MEDIAN[0]= mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
-                P_MEDIAN[1]= mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
-            }
-            c->pred_x= P_LEFT[0];
-            c->pred_y= P_LEFT[1];
+            P_MEDIAN[0] = mid_pred(P_LEFT[0], P_TOP[0], P_TOPRIGHT[0]);
+            P_MEDIAN[1] = mid_pred(P_LEFT[1], P_TOP[1], P_TOPRIGHT[1]);
         }
+        c->pred_x = P_LEFT[0];
+        c->pred_y = P_LEFT[1];
 
         if(mv_table == s->b_forw_mv_table){
             mv_scale= (s->pb_time<<16) / (s->pp_time<<shift);

libavfilter/vf_hflip.c

@@ -96,10 +96,8 @@ static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir)
         for (i = 0; i < h>>vsub; i++) {
             switch (step) {
             case 1:
-            {
                 for (j = 0; j < (inlink->w >> hsub); j++)
                     outrow[j] = inrow[-j];
-            }
             break;
 
             case 2:

libswscale/ppc/swscale_altivec.c

@@ -99,7 +99,6 @@ yuv2planeX_altivec(const int16_t *filter, int filterSize,
                    const uint8_t *dither, int offset)
 {
     register int i, j;
-    {
         DECLARE_ALIGNED(16, int, val)[dstW];
 
         for (i=0; i<dstW; i++)
@@ -142,7 +141,6 @@ yuv2planeX_altivec(const int16_t *filter, int filterSize,
             }
         }
         altivec_packIntArrayToCharArray(val, dest, dstW);
-    }
 }
 
 static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
@@ -166,7 +164,6 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
     else
     switch (filterSize) {
     case 4:
-    {
     for (i=0; i<dstW; i++) {
         register int srcPos = filterPos[i];
 
@@ -201,11 +198,9 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
         vec_st(val_s, 0, tempo);
         dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1);
     }
-    }
     break;
 
     case 8:
-    {
     for (i=0; i<dstW; i++) {
         register int srcPos = filterPos[i];
 
@@ -228,11 +223,9 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
         vec_st(val_s, 0, tempo);
         dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1);
     }
-    }
     break;
 
     case 16:
-    {
         for (i=0; i<dstW; i++) {
             register int srcPos = filterPos[i];
 
@@ -257,11 +250,9 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
             vec_st(val_s, 0, tempo);
             dst[i] = FFMIN(tempo[3]>>7, (1<<15)-1);
         }
-    }
     break;
 
     default:
-    {
     for (i=0; i<dstW; i++) {
         register int j;
         register int srcPos = filterPos[i];
@@ -321,7 +312,6 @@ static void hScale_altivec_real(SwsContext *c, int16_t *dst, int dstW,
     }
 
     }
-    }
 }
 
 void ff_sws_init_swScale_altivec(SwsContext *c)