libavcodec/mpeg2_metadata_bsf.c:156: error: Uninitialized Value
  The value read from code was never initialized.

libavcodec/mpeg2_metadata_bsf.c:156:9: 
154. 
155.     found_frame_rate:
156.         sh->frame_rate_code        = code;
             ^
157.         se->frame_rate_extension_n = ext_n - 1;
158.         se->frame_rate_extension_d = ext_d - 1;
