/// <summary>
/// Adds custom attributes to the quality level.
/// </summary>
/// <param name="reader">The xml reader.</param>
/// <param name="qualityLevel">The quality level.</param>
private static void AddCustomAttributes(XmlReader reader, QualityLevel qualityLevel)
{
if (!reader.IsEmptyElement)
{
while (reader.Read())
{
if (reader.Name == "CustomAttributes" && reader.NodeType == XmlNodeType.Element)
{
while (reader.Read())
{
if ((reader.Name == "Attribute") && (reader.NodeType == XmlNodeType.Element))
{
string attribute = reader.GetAttribute("Name");
if (!string.IsNullOrEmpty(attribute))
{
qualityLevel.AddCustomAttribute(attribute, reader.GetAttribute("Value"));
}
}
if ((reader.Name == "CustomAttributes") && (reader.NodeType == XmlNodeType.EndElement))
{
return;
}
}
}
if (reader.Name == "QualityLevel" && reader.NodeType == XmlNodeType.EndElement)
{
return;
}
}
}
}
/// <summary>
/// Adds attributes to the quality level.
/// </summary>
/// <param name="reader">The xml reader.</param>
/// <param name="qualityLevel">The quality level.</param>
private static void AddAttributes(XmlReader reader, QualityLevel qualityLevel)
{
if (reader.HasAttributes && reader.MoveToFirstAttribute())
{
do
{
qualityLevel.AddAttribute(reader.Name, reader.Value);
}while (reader.MoveToNextAttribute());
reader.MoveToElement();
}
}
/// <summary>
/// Creates a clone instance of this QualityLevel object.
/// </summary>
/// <returns>A copy of the QualityLevel object.</returns>
public QualityLevel Clone()
{
QualityLevel clone = new QualityLevel();
foreach (KeyValuePair <string, string> attributeValuePair in this.Attributes)
{
clone.AddAttribute(attributeValuePair.Key, attributeValuePair.Value);
}
foreach (KeyValuePair <string, string> customAttributeValuePair in this.CustomAttributes)
{
clone.AddCustomAttribute(customAttributeValuePair.Key, customAttributeValuePair.Value);
}
return(clone);
}
/// <summary>
/// Parses the manifest stream.
/// </summary>
/// <param name="manifestStream">The manifest stream being parsed.</param>
private void ParseManifest(Stream manifestStream)
{
using (XmlReader reader = XmlReader.Create(manifestStream))
{
if (reader.Read() && reader.IsStartElement(ManifestSmoothStreamingMediaElement))
{
int majorVersion = reader.GetValueAsInt(ManifestMajorVersionAttribute).GetValueOrDefault();
int minorVersion = reader.GetValueAsInt(ManifestMinorVersionAttribute).GetValueOrDefault();
bool isLive = reader.GetValueAsBool(ManifestIsLiveAttribute).GetValueOrDefault();
int lookAheadFragmentCount = 0;
int dvrWindowLength = 0;
if (isLive)
{
lookAheadFragmentCount = reader.GetValueAsInt(ManifestLookAheadFragmentCountAttribute).GetValueOrDefault();
dvrWindowLength = reader.GetValueAsInt(ManifestDvrWindowLengthAttribute).GetValueOrDefault();
}
ulong Timescale = reader.GetValueAsULong(TimeScaleAttribute).GetValueOrDefault(TicksPerSecond);
ulong manifestDuration = reader.GetValueAsULong(ManifestDurationAttribute).GetValueOrDefault();
Guid protectionGuid = Guid.Empty;
string protectionData = string.Empty;
List <StreamInfo> streams = new List <StreamInfo>();
while (reader.Read())
{
if (reader.Name == ManifestProtectionElement && reader.NodeType == XmlNodeType.Element)
{
reader.Read();
if (reader.Name == ManifestProtectionHeaderElement && reader.NodeType == XmlNodeType.Element)
{
protectionGuid = new Guid(reader.GetValue(ManifestProtectionSystemIDElement));
protectionData = reader.ReadElementContentAsString();
}
}
if (reader.Name == ManifestStreamIndexElement && reader.NodeType == XmlNodeType.Element)
{
string type = reader.GetValue(ManifestStreamIndexTypeAttribute);
StreamInfo streamInfo = new StreamInfo(type);
AddAttributes(reader, streamInfo);
while (reader.Read())
{
if (reader.Name == ManifestStreamIndexElement && reader.NodeType == XmlNodeType.EndElement)
{
break;
}
if ((reader.Name == "QualityLevel") && (reader.NodeType == XmlNodeType.Element))
{
QualityLevel qualityLevel = new QualityLevel();
AddAttributes(reader, qualityLevel);
AddCustomAttributes(reader, qualityLevel);
streamInfo.QualityLevels.Add(qualityLevel);
}
if ((reader.Name == "c") && (reader.NodeType == XmlNodeType.Element))
{
int? chunkId = reader.GetValueAsInt("n");
UInt64?time = reader.GetValueAsUInt64("t");
ulong? duration = reader.GetValueAsULong("d");
ulong? repetitions = reader.GetValueAsULong("r");
for (ulong i = 0; i < (repetitions.HasValue ? repetitions.Value : 1); i++)
{
Chunk chunk = new Chunk(chunkId, i == 0 ? time : null, duration);
if (((!reader.IsEmptyElement && reader.Read()) && (reader.IsStartElement("f") && reader.Read())) && (reader.NodeType == XmlNodeType.Text))
{
chunk.Value = reader.Value;
}
streamInfo.Chunks.Add(chunk);
}
}
}
streams.Add(streamInfo);
}
}
streams.ToArray();
if (!isLive)
{
this.ManifestInfo = new ManifestInfo(majorVersion, minorVersion, manifestDuration, streams, protectionGuid, protectionData, Timescale);
}
else
{
this.ManifestInfo = new ManifestInfo(majorVersion, minorVersion, manifestDuration, isLive, lookAheadFragmentCount, dvrWindowLength, streams, protectionGuid, protectionData, Timescale);
}
}
}
}
