live dvbteletext subtitles application

Hello
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I need a c# application on windows platform

need to create dvb teletex subtitle generator:
- u can use like a input a direct show input or udp multicast as was better for your development
- need to send live text srtings to the application (via udp or tcp)
- create ts with dvbteletex subtitle track
- u can use also any opensource sw if need