Merge commit '077b55943330150db0eafd36bbee614697cabd98'

* commit '077b55943330150db0eafd36bbee614697cabd98':
  hevc: handle a NULL sps in set_sps() properly

Merged-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/hevc.c

@@ -332,13 +332,19 @@ static int set_sps(HEVCContext *s, const HEVCSPS *sps, enum AVPixelFormat pix_fm
     enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts;
     int ret, i;
 
-    export_stream_params(s->avctx, &s->ps, sps);
-
     pic_arrays_free(s);
+    s->ps.sps = NULL;
+    s->ps.vps = NULL;
+
+    if (!sps)
+        return 0;
+
     ret = pic_arrays_init(s, sps);
     if (ret < 0)
         goto fail;
 
+    export_stream_params(s->avctx, &s->ps, sps);
+
     if (sps->pix_fmt == AV_PIX_FMT_YUV420P || sps->pix_fmt == AV_PIX_FMT_YUVJ420P) {
 #if CONFIG_HEVC_DXVA2_HWACCEL
         *fmt++ = AV_PIX_FMT_DXVA2_VLD;