libavcodec/hevc_sei.c:75: error: Uninitialized Value
  The value read from content was never initialized.

libavcodec/hevc_sei.c:75:5: 
73.     s->sei_frame_packing_present      = (cancel == 0);
74.     s->frame_packing_arrangement_type = type;
75.     s->content_interpretation_type    = content;
        ^
76.     s->quincunx_subsampling           = quincunx;
77. }
