diff --git a/libavcodec/imgconvert_template.h b/libavcodec/imgconvert_template.h
index 07dbb654dc..4cc898bab7 100644
--- a/libavcodec/imgconvert_template.h
+++ b/libavcodec/imgconvert_template.h
@@ -410,7 +410,8 @@ static void glue(pal8_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
     }
 }
 
-#if !defined(FMT_RGBA32) && defined(RGBA_OUT)
+// RGB24 has optimised routines
+#if !defined(FMT_RGBA32) && !defined(FMT_RGB24)
 /* alpha support */
 
 static void glue(rgba32_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
@@ -419,7 +420,10 @@ static void glue(rgba32_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
     const uint8_t *s;
     uint8_t *d;
     int src_wrap, dst_wrap, j, y;
-    unsigned int v, r, g, b, a;
+    unsigned int v, r, g, b;
+#ifdef RGBA_OUT
+    unsigned int a;
+#endif
 
     s = src->data[0];
     src_wrap = src->linesize[0] - width * 4;
@@ -430,11 +434,15 @@ static void glue(rgba32_to_, RGB_NAME)(AVPicture *dst, const AVPicture *src,
     for(y=0;y<height;y++) {
         for(j = 0;j < width; j++) {
             v = ((const uint32_t *)(s))[0];
-            a = (v >> 24) & 0xff;
             r = (v >> 16) & 0xff;
             g = (v >> 8) & 0xff;
             b = v & 0xff;
+#ifdef RGBA_OUT
+            a = (v >> 24) & 0xff;
             RGBA_OUT(d, r, g, b, a);
+#else
+            RGB_OUT(d, r, g, b);
+#endif
             s += 4;
             d += BPP;
         }
@@ -449,7 +457,10 @@ static void glue(RGB_NAME, _to_rgba32)(AVPicture *dst, const AVPicture *src,
     const uint8_t *s;
     uint8_t *d;
     int src_wrap, dst_wrap, j, y;
-    unsigned int r, g, b, a;
+    unsigned int r, g, b;
+#ifdef RGBA_IN
+    unsigned int a;
+#endif
 
     s = src->data[0];
     src_wrap = src->linesize[0] - width * BPP;
@@ -459,8 +470,13 @@ static void glue(RGB_NAME, _to_rgba32)(AVPicture *dst, const AVPicture *src,
 
     for(y=0;y<height;y++) {
         for(j = 0;j < width; j++) {
+#ifdef RGBA_IN
             RGBA_IN(r, g, b, a, s);
             ((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;
+#else
+            RGB_IN(r, g, b, s);
+            ((uint32_t *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;
+#endif
             d += 4;
             s += BPP;
         }
@@ -469,7 +485,7 @@ static void glue(RGB_NAME, _to_rgba32)(AVPicture *dst, const AVPicture *src,
     }
 }
 
-#endif /* !defined(FMT_RGBA32) && defined(RGBA_IN) */
+#endif /* !defined(FMT_RGBA32) */
 
 #ifndef FMT_RGB24