/// <summary>
/// Updates participant data from SDES items.
/// </summary>
/// <param name="sdes">SDES chunk.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>sdes</b> is null reference value.</exception>
internal void Update(RTCP_Packet_SDES_Chunk sdes)
{
if (sdes == null)
{
throw new ArgumentNullException("sdes");
}
bool changed = false;
if (!string.IsNullOrEmpty(sdes.Name) && !string.Equals(m_Name, sdes.Name))
{
m_Name = sdes.Name;
changed = true;
}
if (!string.IsNullOrEmpty(sdes.Email) && !string.Equals(m_Email, sdes.Email))
{
m_Email = sdes.Email;
changed = true;
}
if (!string.IsNullOrEmpty(sdes.Phone) && !string.Equals(Phone, sdes.Phone))
{
m_Phone = sdes.Phone;
changed = true;
}
if (!string.IsNullOrEmpty(sdes.Location) && !string.Equals(m_Location, sdes.Location))
{
m_Location = sdes.Location;
changed = true;
}
if (!string.IsNullOrEmpty(sdes.Tool) && !string.Equals(m_Tool, sdes.Tool))
{
m_Tool = sdes.Tool;
changed = true;
}
if (!string.IsNullOrEmpty(sdes.Note) && !string.Equals(m_Note, sdes.Note))
{
m_Note = sdes.Note;
changed = true;
}
if (changed)
{
OnChanged();
}
}
/// <summary>
/// Adds next(round-robined) optional SDES item to SDES chunk, if any available.
/// </summary>
/// <param name="sdes">SDES chunk where to add item.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>sdes</b> is null reference.</exception>
internal void AddNextOptionalSdesItem(RTCP_Packet_SDES_Chunk sdes)
{
if (sdes == null)
{
throw new ArgumentNullException("sdes");
}
lock (m_pOtionalItemsRoundRobin){
if (m_pOtionalItemsRoundRobin.Count > 0)
{
string itemName = m_pOtionalItemsRoundRobin.Next();
if (itemName == "name")
{
sdes.Name = m_Name;
}
else if (itemName == "email")
{
sdes.Email = m_Email;
}
else if (itemName == "phone")
{
sdes.Phone = m_Phone;
}
else if (itemName == "location")
{
sdes.Location = m_Location;
}
else if (itemName == "tool")
{
sdes.Tool = m_Tool;
}
else if (itemName == "note")
{
sdes.Note = m_Note;
}
}
}
}
/// <summary>
/// Parses Source Description(SDES) packet from data buffer.
/// </summary>
/// <param name="buffer">Buffer what contains SDES packet.</param>
/// <param name="offset">Offset in buffer.</param>
protected override void ParseInternal(byte[] buffer, ref int offset)
{
/* RFC 3550 6.5 SDES: Source Description RTCP Packet.
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* header |V=2|P| SC | PT=SDES=202 | length |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
* chunk | SSRC/CSRC_1 |
* 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SDES items |
| ... |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
| chunk | SSRC/CSRC_2 |
| 2 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SDES items |
| ... |
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
*/
m_Version = buffer[offset] >> 6;
bool isPadded = Convert.ToBoolean((buffer[offset] >> 5) & 0x1);
int sourceCount = buffer[offset++] & 0x1F;
int type = buffer[offset++];
int length = buffer[offset++] << 8 | buffer[offset++];
if (isPadded)
{
this.PaddBytesCount = buffer[offset + length];
}
// Read chunks
for (int i = 0; i < sourceCount; i++)
{
RTCP_Packet_SDES_Chunk chunk = new RTCP_Packet_SDES_Chunk();
chunk.Parse(buffer, ref offset);
m_pChunks.Add(chunk);
}
}