Remove optionality from --sao
SAO parameter was optional which caused that if one wants to pass argument
one needs to use "=" which is confusing since this is not required for any
other parameter
@@ -47,7 +47,7 @@ static const struct option long_options[] = {
{ "input-fps", required_argument, NULL, 0 },
{ "deblock", required_argument, NULL, 0 },
{ "no-deblock", no_argument, NULL, 0 },
- { "sao", optional_argument, NULL, 0 },
+ { "sao", required_argument, NULL, 0 },
{ "no-sao", no_argument, NULL, 0 },
{ "rdoq", no_argument, NULL, 0 },
{ "no-rdoq", no_argument, NULL, 0 },
