public CodecMatch(CodecRegistration codecRegistration, float score, int matchingParameters)
{
if (codecRegistration == null)
{
throw new ArgumentNullException("codecRegistration");
}
CodecRegistration = codecRegistration;
Score = score;
MatchingParameterCount = matchingParameters;
}
static int CalculateDistance(IMember member, CodecRegistration registration)
{
if (registration.ResourceType == null)
{
return(-1);
}
if (registration.IsStrict)
{
return((member.Type.CompareTo(registration.ResourceType) == 0) ? 0 : -1);
}
return(member.Type.CompareTo(registration.ResourceType));
}
public CodecMatch(CodecRegistration codecRegistration, float score, int matchingParameters)
{
if (codecRegistration == null)
{
throw new ArgumentNullException(nameof(codecRegistration));
}
CodecRegistration = codecRegistration;
Score = score;
MatchingParameterCount = matchingParameters;
MediaType = CodecRegistration.MediaType;
WeightedScore = Score * CodecRegistration.MediaType.Quality;
}
float CalculateScoreFor(IEnumerable <IMember> types, CodecRegistration registration)
{
float score = 0;
foreach (var requestedType in types)
{
int typeComparison = CalculateDistance(requestedType.Type, registration);
if (typeComparison == -1)
{
return(-1);
}
float typeScore = 1f / (1f + typeComparison);
score += typeScore;
}
return(score);
}
public void Add(CodecRegistration codecRegistration)
{
_codecs.Add(codecRegistration.MediaType, codecRegistration);
}