func AvError(averr int) error {
errlen := 1024
b := make([]byte, errlen)
C.av_strerror(C.int(averr), (*C.char)(unsafe.Pointer(&b[0])), C.size_t(errlen))
return errors.New(string(b[:bytes.Index(b, []byte{0})]))
}
func strError(code C.int) string {
size := C.size_t(256)
buf := (*C.char)(C.malloc(size))
defer C.free(unsafe.Pointer(buf))
C.memset(unsafe.Pointer(buf), 0, size)
if C.av_strerror(code, buf, size-1) == 0 {
return C.GoString(buf)
}
return "Unknown error"
}