libswscale/yuv2rgb.c:210: error: Uninitialized Value
  The value read from pa_1 was never initialized.

libswscale/yuv2rgb.c:210:5: 
208.     PUTRGBA(dst_2,py_2,pa_1,3,24);
209.     PUTRGBA(dst_1,py_1,pa_2,3,24);
210.     pa_1 += 8;\
         ^
211.     pa_2 += 8;\
212. ENDYUV2RGBLINE(8)
