Merge commit 'b1432e905d462198a8d7834b256848f2b9e4f8e6' into release/1.1

* commit 'b1432e905d462198a8d7834b256848f2b9e4f8e6':
  avfilter: Add missing emms_c when needed

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavfilter/af_volume.c

@@ -275,6 +275,8 @@ static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *buf)
         }
     }
 
+    emms_c();
+
     if (buf != out_buf)
         avfilter_unref_buffer(buf);
 

libavfilter/vf_gradfun.c

@@ -129,6 +129,7 @@ static void filter(GradFunContext *ctx, uint8_t *dst, const uint8_t *src, int wi
         ctx->filter_line(dst + y * dst_linesize, src + y * src_linesize, dc - r / 2, width, thresh, dither[y & 7]);
         if (++y >= height) break;
     }
+    emms_c();
 }
 
 static av_cold int init(AVFilterContext *ctx, const char *args)

libavfilter/vf_hqdn3d.c

@@ -155,6 +155,7 @@ static void denoise_depth(HQDN3DContext *hqdn3d,
     else
         denoise_temporal(src, dst, frame_ant,
                          w, h, sstride, dstride, temporal, depth);
+    emms_c();
 }
 
 #define denoise(...) \