libswscale/yuv2rgb.c:287: error: Uninitialized Value
  The value read from pa_1 was never initialized.

libswscale/yuv2rgb.c:287:5: 
285.     PUTRGBA(dst_2, py_2, pa_1, 1, 24);
286.     PUTRGBA(dst_1, py_1, pa_2, 1, 24);
287.     pa_1 += 4;
         ^
288.     pa_2 += 4;
289. ENDYUV2RGBLINE(8, 1)
