ffmpeg_sys::sws_getContext

pub unsafe extern fn sws_getContext(srcW: c_int, srcH: c_int, srcFormat: AVPixelFormat, dstW: c_int, dstH: c_int, dstFormat: AVPixelFormat, flags: c_int, srcFilter: *mut SwsFilter, dstFilter: *mut SwsFilter, param: *const c_double) -> *mut SwsContext