The arguments are saved to variable when script started. Instead of
using $1, $2 and $3, we can use these variables.
Signed-off-by: yuchenlin <npes87184@gmail.com>
Build the Windows binary from mingw on Linux, using the official
prebuilt binaries for ffmpeg, SDL2 and adb.
MSYS2 and all its packaged dll are not necessary anymore.