libswscale/yuv2rgb.c:278: error: Uninitialized Value
  The value read from pa_2 was never initialized.

libswscale/yuv2rgb.c:278:5: 
276.     PUTRGBA(dst_1, py_1, pa_2, 3, 24);
277.     pa_1 += 8; \
278.     pa_2 += 8; \
         ^
279. ENDYUV2RGBLINE(8, 0)
280.     LOADCHROMA(0);

YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
    LOADCHROMA(0);
    PUTRGBA(dst_1, py_1, pa_1, 0, 24);
    PUTRGBA(dst_2, py_2, pa_2, 0, 24);
    LOADCHROMA(1);
    PUTRGBA(dst_2, py_2, pa_1, 1, 24);
    PUTRGBA(dst_1, py_1, pa_2, 1, 24);
    LOADCHROMA(2);
    PUTRGBA(dst_1, py_1, pa_1, 2, 24);
    PUTRGBA(dst_2, py_2, pa_2, 2, 24);
    LOADCHROMA(3);
    PUTRGBA(dst_2, py_2, pa_1, 3, 24);
    PUTRGBA(dst_1, py_1, pa_2, 3, 24);
    pa_1 += 8; \
    pa_2 += 8; \
ENDYUV2RGBLINE(8, 0)
    LOADCHROMA(0);
    PUTRGBA(dst_1, py_1, pa_1, 0, 24);
    PUTRGBA(dst_2, py_2, pa_2, 0, 24);
    LOADCHROMA(1);
    PUTRGBA(dst_2, py_2, pa_1, 1, 24);
    PUTRGBA(dst_1, py_1, pa_2, 1, 24);
    pa_1 += 4; \
    pa_2 += 4; \
ENDYUV2RGBLINE(8, 1)
    LOADCHROMA(0);
    PUTRGBA(dst_1, py_1, pa_1, 0, 24);
    PUTRGBA(dst_2, py_2, pa_2, 0, 24);
ENDYUV2RGBFUNC()
['YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)\n    LOADCHROMA(0);\n    PUTRGBA(dst_1, py_1, pa_1, 0, 24);\n    PUTRGBA(dst_2, py_2, pa_2, 0, 24);\n    LOADCHROMA(1);\n    PUTRGBA(dst_2, py_2, pa_1, 1, 24);\n    PUTRGBA(dst_1, py_1, pa_2, 1, 24);\n    LOADCHROMA(2);\n    PUTRGBA(dst_1, py_1, pa_1, 2, 24);\n    PUTRGBA(dst_2, py_2, pa_2, 2, 24);\n    LOADCHROMA(3);\n    PUTRGBA(dst_2, py_2, pa_1, 3, 24);\n    PUTRGBA(dst_1, py_1, pa_2, 3, 24);\n    pa_1 += 8; \\\n    pa_2 += 8; \\\nENDYUV2RGBLINE(8, 0)\n    LOADCHROMA(0);\n    PUTRGBA(dst_1, py_1, pa_1, 0, 24);\n    PUTRGBA(dst_2, py_2, pa_2, 0, 24);\n    LOADCHROMA(1);\n    PUTRGBA(dst_2, py_2, pa_1, 1, 24);\n    PUTRGBA(dst_1, py_1, pa_2, 1, 24);\n    pa_1 += 4; \\\n    pa_2 += 4; \\\nENDYUV2RGBLINE(8, 1)\n    LOADCHROMA(0);\n    PUTRGBA(dst_1, py_1, pa_1, 0, 24);\n    PUTRGBA(dst_2, py_2, pa_2, 0, 24);\nENDYUV2RGBFUNC()']