libavcodec/qdm2.c:972: error: Uninitialized Value
  The value read from samples[_] was never initialized.

libavcodec/qdm2.c:972:25: 
970.                 if (joined_stereo) {
971.                     for (k = 0; k < run && j + k < 128; k++) {
972.                         q->sb_samples[0][j + k][sb] =
                             ^
973.                             q->tone_level[0][sb][(j + k) / 2] * samples[k];
974.                         if (q->nb_channels == 2) {
