libavcodec/snow.c:3525: error: Buffer Overrun L3
  Offset added: 4 Size: [0, +oo].

libavcodec/snow.c:3517:1: <Length trace>
3515. }
3516. 
3517. static void update_last_header_values(SnowContext *s){
      ^
3518.     int plane_index;
3519. 

libavcodec/snow.c:3517:1: Parameter `s->plane[*].hcoeff[*]`
3515. }
3516. 
3517. static void update_last_header_values(SnowContext *s){
      ^
3518.     int plane_index;
3519. 

libavcodec/snow.c:3525:13: Array access: Offset added: 4 Size: [0, +oo]
3523.             p->last_diag_mc= p->diag_mc;
3524.             p->last_htaps  = p->htaps;
3525.             memcpy(p->last_hcoeff, p->hcoeff, sizeof(p->hcoeff));
                  ^
3526.         }
3527.     }
