Merge commit 'fa6b99d3' into release/2.2

* commit 'fa6b99d3':
  hevc: Do not turn 32bit timebases into negative numbers

Conflicts:
	libavcodec/hevc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/hevc.c

@@ -283,7 +283,7 @@ static int decode_lt_rps(HEVCContext *s, LongTermRPS *rps, GetBitContext *gb)
 static int set_sps(HEVCContext *s, const HEVCSPS *sps)
 {
     int ret;
-    unsigned num = 0, den = 0;
+    unsigned int num = 0, den = 0;
 
     pic_arrays_free(s);
     ret = pic_arrays_init(s, sps);