public WorkerFileDataSearch(StreamParserContext owner, MessageHandlerDelegate messageCallbackFromOwner, SearchRequest searchRequest)
: base(owner, messageCallbackFromOwner)
{
this.sectionManager = new ManagerSection(owner);
this.streamDemux = new StreamDemux(owner);
this.searchRequest = searchRequest;
//In search mode. We will not parse standard SI/PSI sections, instead ,we will set up a filter for the expected data.
Filter filterForSearch = null;
if (searchRequest.SearchType == DataType.SECTION)
{
//To search sections.
filterForSearch = new Filter(owner, HandleDataFromDemux, searchRequest.SearchType, searchRequest.SelectedPid, searchRequest.FilterMask.Length, searchRequest.FilterMask, searchRequest.FilterMatch);
}
else
{
//To search TS packet or PES packet.
filterForSearch = new Filter(owner, HandleDataFromDemux, searchRequest.SearchType, searchRequest.SelectedPid);
}
//In order to fitler out what we are expecting.
streamDemux.AddFilter(filterForSearch);
}
//Process some special sections that we expect.
private void ProcessSection(DataStore section)
{
byte[] data = section.GetData();
Result result = new Result();
//Clean up offset and cutoff!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
section.Reset();
if (data[0] == (byte)TableId.PAT)
{
List <Service> serviceList = new List <Service>();
result = serviceManager.ProcessPatSection(section, serviceList);
if (serviceList.Count > 0)
{
foreach (Service service in serviceList)
{
//Check service ID, in case PID for NIT is different from what we expect.
if (0 == service.ServiceId)
{
if ((UInt16)TsPID.NIT != (service.PmtPid))
{
//Set up filter to filter out NIT if NIT's PID in PAT is different from what we expect.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
service.PmtPid, //PID.
1, //Filter depth.
new byte[1] {
0xFE
}, //Mask.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!0xFE!!!!!!!!!!!!!!!!!
new byte[1] {
(byte)TableId.NIT_ACTUAL
})); //Match.
//Set the type.!!!!!!!!!!!!!!!!!
pidManager.SetPidTypePlus(service.PmtPid, DataType.SECTION, "NIT");
}
}
else
{
//Set up filter to filter out PMT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
service.PmtPid, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.PMT
})); //Match.
//Set the type.!!!!!!!!!!!!!!!!!
pidManager.SetPidTypePlus(service.PmtPid, DataType.SECTION, "PMT PID for service: " + Utility.GetValueHexString(service.ServiceId, 16));
}
}
}
}//PAT
else if (data[0] == (byte)TableId.PMT)
{
Service service = null;
result = serviceManager.ProcessPmtSection(section, out service);
if (result.Fine)
{
pidManager.SetPidTypePlus(service.PcrPid, DataType.TS_PACKET, "PCR PID for service: " + Utility.GetValueHexString(service.ServiceId, 16));
List <CaDescriptor> caDescriptorList = service.GetCaDescriptorList();
foreach (CaDescriptor caDescriptor in caDescriptorList)
{
pidManager.SetPidTypePlus(caDescriptor.CaPid, DataType.SECTION, "ECM PID for service: " + Utility.GetValueHexString(service.ServiceId, 16) + " CA_system_ID: " + Utility.GetValueHexString(caDescriptor.CaSystemId, 16));
}
List <ComponentStream> componentStreamList = service.GetComponentStreamList();
foreach (ComponentStream componentStream in componentStreamList)
{
pidManager.SetPidTypePlus(componentStream.ElementaryPid, DataType.PES_PACKET, "Component stream for service: " + Utility.GetValueHexString(service.ServiceId, 16) + " Type: " + DataParser.GetStreamTypeName(componentStream.StreamType));
//To update according to component level CA descriptor.
foreach (CaDescriptor caDescriptor in componentStream.GetCaDescriptorList())
{
pidManager.SetPidTypePlus(caDescriptor.CaPid, DataType.SECTION, "ECM PID for service: " + Utility.GetValueHexString(service.ServiceId, 16) + " CA_system_ID: " + Utility.GetValueHexString(caDescriptor.CaSystemId, 16));
}
}
}
}//PMT
else if (data[0] == (byte)TableId.CAT)
{
List <CaDescriptor> caDescriptorList = new List <CaDescriptor>();
result = serviceManager.ProcessCatSection(section, caDescriptorList);
if (result.Fine)
{
foreach (CaDescriptor caDescriptor in caDescriptorList)
{
pidManager.SetPidTypePlus(caDescriptor.CaPid, DataType.SECTION, "EMM PID for CA_system_ID: " + Utility.GetValueHexString(caDescriptor.CaSystemId, 16));
}
}
} //CAT
} //ProcessSection
//Enable standard filters to receive SI/PSI sections.
public void EnableStandardFilters(StreamDemux streamDemux)
{
//To filter PAT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.PAT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.PAT
})); //Match.
//To filter CAT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.CAT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.CAT
})); //Match.
//To filter TSDT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.TSDT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.TSDT
})); //Match.
//To filter NIT for current network and for other network.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.NIT, //PID.
1, //Filter depth.
new byte[1] {
0xFE
}, //Mask. To filter out table ID 0x40 and 0x41.
new byte[1] {
(byte)TableId.NIT_ACTUAL
})); //Match.
//To filter SDT for current stream and for other stream.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.BAT_SDT, //PID.
1, //Filter depth.
new byte[1] {
0xFB
}, //Mask.To filter out table ID 0x42 and 0x46.
new byte[1] {
(byte)TableId.SDT_ACTUAL
})); //Match.
//To filter BAT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.BAT_SDT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.BAT
})); //Match.
//To filter EIT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.EIT, //PID.
1, //Filter depth.
new byte[1] {
0xFE
}, //Mask. To filter out table ID 0x4E and 0x4F.
new byte[1] {
(byte)TableId.EIT_PF_ACTUAL
})); //Match.
//To filter EIT schedule for current stream.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.EIT, //PID.
1, //Filter depth.
new byte[1] {
0xF0
}, //Mask. To filter out table ID 0x50 to 0x5F.
new byte[1] {
(byte)TableId.EIT_SCHEDULE_ACTUAL
})); //Match.
//To filter EIT schedule for other stream.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.EIT, //PID.
1, //Filter depth.
new byte[1] {
0xF0
}, //Mask. To filter out table ID 0x50 to 0x5F.
new byte[1] {
(byte)TableId.EIT_SCHEDULE_OTHER
})); //Match.
//To filter RST.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.RST, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.RST
})); //Match.
//To filter TDT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.TDT_TOT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.TDT
})); //Match.
//To filter TOT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.TDT_TOT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.TOT
})); //Match.
//To filter DIT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.DIT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.DIT
})); //Match.
//To filter SIT.
streamDemux.AddFilter(new Filter(GetContext(), ProcessFilteredData,
DataType.SECTION,
(UInt16)TsPID.SIT, //PID.
1, //Filter depth.
new byte[1] {
0xFF
}, //Mask.
new byte[1] {
(byte)TableId.SIT
})); //Match.
}
