Method, apparatus and system for IP television channel switching processing
The invention provides an Internet Protocol Television (IPTV) channel switching processing method comprising: receiving an Internet Group Management Protocol IGMP Leave message for asking for leaving a first channel; recording user information corresponding to the IGMP Leave message; receiving an IG...
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Main Author | |
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Format | Patent |
Language | Chinese English |
Published |
19.01.2011
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides an Internet Protocol Television (IPTV) channel switching processing method comprising: receiving an Internet Group Management Protocol IGMP Leave message for asking for leaving a first channel; recording user information corresponding to the IGMP Leave message; receiving an IGMP Report message for asking for adding in a second channel; adding the user in a multicast group corresponding to the second channel according to the recorded user information, and generating a multicast list item corresponding to the second channel; recognizing and caching a first multicast copy flow corresponding to the second channel; deleting the multicast list item corresponding to the first channel; transmitting the first multicast copy flow by using a unicast mode; switching the flow toa multicast mode, transmitting a second multicast copy flow corresponding to the second channel by the multicast according to the multicast list item corresponding to the second channel. The method provided by the invention c |
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Bibliography: | Application Number: CN200810242221 |