libavcodec/opusdec.c:194: error: Buffer Overrun L2
  Offset: [0, 239] Size: 2 by call to `ff_celt_decode_frame`.

libavcodec/opusdec.c:180:1: Parameter `s->redundancy_output[*]`
178. }
179. 
180. static int opus_decode_redundancy(OpusStreamContext *s, const uint8_t *data, int size)
     ^
181. {
182.     int ret;

libavcodec/opusdec.c:194:11: Call
192.     opus_raw_init(&s->redundancy_rc, data + size, size);
193. 
194.     ret = ff_celt_decode_frame(s->celt, &s->redundancy_rc,
               ^
195.                                s->redundancy_output,
196.                                s->packet.stereo + 1, 240,

libavcodec/opus_celt.c:1975:1: <Offset 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 `frame_size`
  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: <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 `**output`
  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:2111:13: Array access: Offset: [0, 239] Size: 2 by call to `ff_celt_decode_frame` 
  2109.             float tmp = frame->buf[1024 - frame_size + j] + m;
  2110.             m = tmp * CELT_DEEMPH_COEFF;
  2111.             output[i][j] = tmp / 32768.;
                    ^
  2112.         }
  2113.         frame->deemph_coeff = m;
