libavcodec/ac3.c:176: error: Uninitialized Value
  The value read from fastleak was never initialized.

libavcodec/ac3.c:176:20: 
174. 
175.     for (band = begin; band < band_end; band++) {
176.         fastleak = FFMAX(fastleak - s->fast_decay, band_psd[band] - fast_gain);
                        ^
177.         slowleak = FFMAX(slowleak - s->slow_decay, band_psd[band] - s->slow_gain);
178.         excite[band] = FFMAX(fastleak, slowleak);
