libavcodec/svq1enc.c:196: error: Uninitialized Value
  The value read from best_vector[_] was never initialized.

libavcodec/svq1enc.c:196:13: 
194.             }
195.             assert(best_vector_mean != -999);
196.             vector= codebook + stage*size*16 + best_vector[stage]*size;
                 ^
197.             for(j=0; j<size; j++){
198.                 block[stage+1][j] = block[stage][j] - vector[j];
