CASE             1042 libswscale/swscale_unscaled.c #define CASE(pixfmt, prefix) \
CASE             1058 libswscale/swscale_unscaled.c #undef CASE
CASE             1088 libswscale/swscale_unscaled.c #define CASE(pixfmt, prefix) \
CASE             1104 libswscale/swscale_unscaled.c #undef CASE