libavformat/flvdec.c:811: error: Uninitialized Value
  The value read from flags was never initialized.

libavformat/flvdec.c:811:9: 
809.         int bits_per_coded_sample;
810.         channels = (flags & FLV_AUDIO_CHANNEL_MASK) == FLV_STEREO ? 2 : 1;
811.         sample_rate = 44100 << ((flags & FLV_AUDIO_SAMPLERATE_MASK) >>
             ^
812.                                 FLV_AUDIO_SAMPLERATE_OFFSET) >> 3;
813.         bits_per_coded_sample = (flags & FLV_AUDIO_SAMPLESIZE_MASK) ? 16 : 8;
