IPTV solution based on H.264
IPTV is interactive network TV, which is a brand-new service that uses broadband IP network to provide users with online viewing of film and television programs. IPTV is a new business model of the Internet, and also a more flexible distribution method for media in the Internet era. Since 2003, the IPTV field at home and abroad has developed rapidly, and new technologies and new operating concepts have been continuously produced.
Problems facing IPTV now
Of course, in the promotion of IPTV, some technical and non-technical factors are restricting the development of this new service. The current IPTV operating platforms mostly use MPEG-2, MPEG-4 and other protocols as video protocols. The contradiction between bandwidth and image quality is prominent. The bandwidth required to achieve DVD quality is too high. The relatively high cost of the bandwidth and storage of IPTV operations remains high. In addition, most existing IPTVs use PC as a viewing terminal, which has poor effect and does not conform to the traditional viewing mode.
In response to these problems, Transvision Digital has proposed its own IPTV solution. The advanced H.264 video transmission standard is adopted as the transmission standard of the IPTV solution, and the standard is optimized accordingly, so that the IPTV operator can provide DVD-quality TV programs in the bandwidth of 500Kbps-900Kbps, and use the set-top box as the IPTV program The device meets the user's viewing habits. At the same time, uploading in the business model as digital to vigorously develop multicast services, so that more services can be carried under limited bandwidth.
H.264 protocol advantages
The International Telecommunication Union (ITU) officially adopted the H.264 video compression standard in July 2003. Compared with other video codec standards, it has unparalleled advantages:
Performance advantages
—In the case of the same restored image quality, H.264 saves more than 50% bit rate than MPEG-4
— Allow streaming media to be transmitted on a lower bandwidth, saving bandwidth resources
Strong applicability
—With various types from telephone applications to high-end broadcasting and storage applications
—It has strong fault tolerance and can get better quality in network environment with unstable quality
The first IPTV system in China that fully supports H.264, has experienced the test of actual operation, and has high cost performance, which is convenient for operators to quickly deploy IPTV services.
IPTV is interactive network TV, which is a brand-new service that uses broadband IP network to provide users with online viewing of film and television programs. IPTV is a new business model of the Internet, and also a more flexible distribution method for media in the Internet era. Since 2003, the IPTV field at home and abroad has developed rapidly, and new technologies and new operating concepts have been continuously produced.
Transit IPTV solution architecture diagram
Program production system
neTV encoding system
H.264-based encoder can be embedded in a variety of editing and transcoding software for production and transcoding
neTV program production management
Manage and monitor the entire process of program production to ensure the quality of program production
Perform copyright management and realize contract management with content providers
neTV live broadcast system
Support real-time compression of H.264 programs
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