libavcodec/opus_celt.c:2117: error: Buffer Overrun L3
  Offset added: 84 Size: [0, +oo].

libavcodec/opus_celt.c:1975:1: <Length trace>
1973. }
1974. 
1975. int ff_celt_decode_frame(CeltContext *s, OpusRangeCoder *rc,
      ^
1976.                          float **output, int coded_channels, int frame_size,
1977.                          int startband,  int endband)

libavcodec/opus_celt.c:1975:1: Parameter `s->frame[*].energy[*]`
1973. }
1974. 
1975. int ff_celt_decode_frame(CeltContext *s, OpusRangeCoder *rc,
      ^
1976.                          float **output, int coded_channels, int frame_size,
1977.                          int startband,  int endband)

libavcodec/opus_celt.c:2117:9: Array access: Offset added: 84 Size: [0, +oo]
2115. 
2116.     if (coded_channels == 1)
2117.         memcpy(s->frame[1].energy, s->frame[0].energy, sizeof(s->frame[0].energy));
              ^
2118. 
2119.     for (i = 0; i < 2; i++ ) {
