public string BuildImageHeader(string container,
int?width,
int?height)
{
string orgOp = ";DLNA.ORG_OP=" + DlnaMaps.GetImageOrgOpValue();
// 0 = native, 1 = transcoded
const string orgCi = ";DLNA.ORG_CI=0";
DlnaFlags flagValue = DlnaFlags.StreamingTransferMode |
DlnaFlags.BackgroundTransferMode |
DlnaFlags.DlnaV15;
string dlnaflags = string.Format(";DLNA.ORG_FLAGS={0}",
DlnaMaps.FlagsToString(flagValue));
ResponseProfile mediaProfile = _profile.GetImageMediaProfile(container,
width,
height);
string orgPn = mediaProfile == null ? null : mediaProfile.OrgPn;
if (string.IsNullOrEmpty(orgPn))
{
orgPn = GetImageOrgPnValue(container, width, height);
}
string contentFeatures = string.IsNullOrEmpty(orgPn) ? string.Empty : "DLNA.ORG_PN=" + orgPn;
return((contentFeatures + orgOp + orgCi + dlnaflags).Trim(';'));
}
public static string BuildImageHeader(
DeviceProfile profile,
string container,
int?width,
int?height,
bool isDirectStream,
string orgPn = null)
{
string orgOp = ";DLNA.ORG_OP=" + DlnaMaps.GetImageOrgOpValue();
// 0 = native, 1 = transcoded
var orgCi = isDirectStream ? ";DLNA.ORG_CI=0" : ";DLNA.ORG_CI=1";
var flagValue = DlnaFlags.BackgroundTransferMode |
DlnaFlags.InteractiveTransferMode |
DlnaFlags.DlnaV15;
string dlnaflags = string.Format(
CultureInfo.InvariantCulture,
";DLNA.ORG_FLAGS={0}",
DlnaMaps.FlagsToString(flagValue));
if (string.IsNullOrEmpty(orgPn))
{
ResponseProfile mediaProfile = profile.GetImageMediaProfile(
container,
width,
height);
orgPn = mediaProfile?.OrgPn;
if (string.IsNullOrEmpty(orgPn))
{
orgPn = GetImageOrgPnValue(container, width, height);
}
}
if (string.IsNullOrEmpty(orgPn))
{
return(orgOp.TrimStart(';') + orgCi + dlnaflags);
}
return("DLNA.ORG_PN=" + orgPn + orgOp + orgCi + dlnaflags);
}