public void OnNewSection(Section section)
{
int network_descriptor_length = ((section.Data[8] & 0xF) << 8) + section.Data[9];
int l1 = network_descriptor_length;
int pointer = 10;
string network_name = "";
while (l1 > 0)
{
int descriptor_tag = section.Data[pointer];
int x = section.Data[pointer + 1] + 2;
if (descriptor_tag == 0x40)
network_name = StringUtils.getString468A(section.Data, pointer + 2, x - 2);
l1 -= x;
pointer += x;
}
pointer = 10 + network_descriptor_length;
if (pointer > section.section_length) return;
int transport_stream_loop_length = ((section.Data[pointer] & 0xF) << 8) + section.Data[pointer + 1];
l1 = transport_stream_loop_length;
pointer += 2;
while (l1 > 0)
{
if (pointer + 2 > section.section_length) return;
int transport_stream_id = (section.Data[pointer] << 8) + section.Data[pointer + 1];
int original_network_id = (section.Data[pointer + 2] << 8) + section.Data[pointer + 3];
ulong key = (ulong)(original_network_id << 16);
key += (ulong)transport_stream_id;
int transport_descriptor_length = ((section.Data[pointer + 4] & 0xF) << 8) + section.Data[pointer + 5];
netInfo = new NetworkInfo(network_name, transport_stream_id, original_network_id);
pointer += 6;
l1 -= 6;
int l2 = transport_descriptor_length;
while (l2 > 0)
{
if (pointer + 2 > section.section_length) return;
int descriptor_tag = section.Data[pointer];
int descriptor_length = section.Data[pointer + 1] + 2;
switch (descriptor_tag)
{
case 0x43: // sat
DVB_GetSatDelivSys(section.Data, pointer, descriptor_length);
break;
case 0x44: // cable
DVB_GetCableDelivSys(section.Data, pointer, descriptor_length);
break;
case 0x5A: // terrestrial
DVB_GetTerrestrialDelivSys(section.Data, pointer, descriptor_length);
break;
case 0x83: // logical channel number
DVB_GetLogicalChannelNumber(original_network_id, transport_stream_id, section.Data, pointer);
break;
}
pointer += descriptor_length;
l2 -= descriptor_length;
l1 -= descriptor_length;
}
if (netInfo.netType!=NetworkType.Unknown)
baseNode.Text = "NIT " + netInfo.netType.ToString();
if (!seenNITs.Contains(netInfo.frequency))
{
netInfo.AddToNode(baseNode,(section.table_id==0x41));
seenNITs.Add(netInfo.frequency);
}
}
}
public void OnNewSection(Section section)
{
int network_descriptor_length = ((section.Data[8] & 0xF) << 8) + section.Data[9];
int l1 = network_descriptor_length;
int pointer = 10;
string network_name = "";
while (l1 > 0)
{
int descriptor_tag = section.Data[pointer];
int x = section.Data[pointer + 1] + 2;
if (descriptor_tag == 0x40)
{
network_name = StringUtils.getString468A(section.Data, pointer + 2, x - 2);
}
l1 -= x;
pointer += x;
}
pointer = 10 + network_descriptor_length;
if (pointer > section.section_length)
{
return;
}
int transport_stream_loop_length = ((section.Data[pointer] & 0xF) << 8) + section.Data[pointer + 1];
l1 = transport_stream_loop_length;
pointer += 2;
while (l1 > 0)
{
if (pointer + 2 > section.section_length)
{
return;
}
int transport_stream_id = (section.Data[pointer] << 8) + section.Data[pointer + 1];
int original_network_id = (section.Data[pointer + 2] << 8) + section.Data[pointer + 3];
ulong key = (ulong)(original_network_id << 16);
key += (ulong)transport_stream_id;
int transport_descriptor_length = ((section.Data[pointer + 4] & 0xF) << 8) + section.Data[pointer + 5];
netInfo = new NetworkInfo(network_name, transport_stream_id, original_network_id);
pointer += 6;
l1 -= 6;
int l2 = transport_descriptor_length;
while (l2 > 0)
{
if (pointer + 2 > section.section_length)
{
return;
}
int descriptor_tag = section.Data[pointer];
int descriptor_length = section.Data[pointer + 1] + 2;
switch (descriptor_tag)
{
case 0x43: // sat
DVB_GetSatDelivSys(section.Data, pointer, descriptor_length);
break;
case 0x44: // cable
DVB_GetCableDelivSys(section.Data, pointer, descriptor_length);
break;
case 0x5A: // terrestrial
DVB_GetTerrestrialDelivSys(section.Data, pointer, descriptor_length);
break;
case 0x83: // logical channel number
DVB_GetLogicalChannelNumber(original_network_id, transport_stream_id, section.Data, pointer);
break;
}
pointer += descriptor_length;
l2 -= descriptor_length;
l1 -= descriptor_length;
}
if (netInfo.netType != NetworkType.Unknown)
{
baseNode.Text = "NIT " + netInfo.netType.ToString();
}
if (!seenNITs.Contains(netInfo.frequency))
{
netInfo.AddToNode(baseNode, (section.table_id == 0x41));
seenNITs.Add(netInfo.frequency);
}
}
}
