Merge commit '5c22c90c'

* commit '5c22c90c':
  vp9_superframe_bsf: cache packets by creating new references instead of moving pointers

See 37f4a093
7a02b364Merged-by: James Almer <jamrial@gmail.com>

libavcodec/vp9_superframe_bsf.c

@@ -181,7 +181,7 @@ static int vp9_superframe_init(AVBSFContext *ctx)
     VP9BSFContext *s = ctx->priv_data;
     int n;
 
-    // alloc cached data
+    // alloc cache packets
     for (n = 0; n < MAX_CACHE; n++) {
         s->cache[n] = av_packet_alloc();
         if (!s->cache[n])