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Linux DVB API Version 4
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2012-03-17
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DVB and Digital TV • History • About LinuxTV.org • Linux DVB API v3 status and problems • Linux DVB API v4 design and structure • Concepts • Current status and todo • Helping the project
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26.01.2005 1
Linux DVB API Version 4
http://www.linuxtv.org
Michael Hunold
hunold@linuxtv.org
26.01.2005 2
Contents
• DVB and Digital TV
• History
• About LinuxTV.org
• Linux DVB API v3 status and problems
• Linux DVB API v4 design and structure
• Concepts
• Current status and todo
• Helping the project
26.01.2005 3
What is DVB?
• Digital Video Broadcast http://www.dvb.org/
• delivery of any digitized informations to the home
– video, audio, subtitles
– service informations, program guide
– multimedia applications, ...
• managed by Digital Video Broadcasting Project
– industry-led consortium of broadcasters, manufacturers, network
operators, software developers, regulatory bodies and others
• based on MPEG2 transport streams
• different means of transportation
– DVB-C ð cable
– DVB-S ð satellite
– DVB-T ð terrestrial
26.01.2005 4
Data flow
• MPEG2 transport stream (TS)
• data packets with 188 bytes
Broadcaster
End-user
01010101010
01010101010
26.01.2005 5
Related technologies
• IP-over-DVB (“SkyDSL”, Internet via satellite)
– MPE (Multi Protocol Encapsulation, ETSI standard)
– ULE (Ultra Light Encapsulation, IETF draft)
• DVB-over-IP
– MPEG2 TS distributed via Ethernet
– RTP streaming
– DVB-IPI (ETSI TR 102 033)
• general datacasting
– SSU (System Software Update)
– proprietary protocols
• DVD playback (MPEG2-PS and MPEG1)
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- wanghaiyangj2013-03-23资源很受用,以后开发很方便
- a0204902014-10-16正好想了解一下呢。资料还不错
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