libavcodec/tscc.c:163: error: Uninitialized Value
  The value read from pix[_] was never initialized.

libavcodec/tscc.c:163:26: 
161.                          output += 2;
162.                          break;
163.                 case 24: *output++ = pix[0];
                              ^
164.                          *output++ = pix[1];
165.                          *output++ = pix[2];
