Method for realizing network TV program carousel based on real-time transport protocol

Abstract

The invention discloses a method for realizing network TV program carousel based on a real-time transport protocol, comprising the following steps: a playing terminal receives and analyzes SDP which is transmitted by a media server and comprises a media type database; a media format information table taking effective loading PT as an index is built according to an analysis result; whether an obtained programme identification is the same with the current programme identification or not is determined; whether the current media format information is same with that of the previous program or not is determined; according to a determined result, whether the current decoder continues to be adopted or not is determined according to the determined result, or the current decoder is closed, and the decoder to which the current program corresponds is started to decode. The method of the invention can start the decoder corresponding to the media type of the current programme to decode in time and ensure the playing terminal can play programme normally.

Description

technical field [0001] The invention relates to Internet TV (IPTV) technology, in particular to a method for realizing carousel broadcasting of Internet TV programs based on Real-time Transport Protocol (RTP). Background technique [0002] The network TV program carousel is a playback mode, which specifically means that the media server sends the media data of the carousel programs to the playback terminal of the carousel channel in chronological order according to the broadcast plan of the TV program carousel. The program added in the play plan may be an on-demand program, or a currently live channel program. [0003] The programs added to the play plan can have different media types. However, if the media types of the program being played and the program to be played next are different, there may be problems in decoding the decoder, resulting in the inability to play the program or mosaics in the video image. Therefore, in order to ensure that the playback terminal can st...

AI Technical Summary

Problems solved by technology

[0005] At present, when ISMA is used to realize program carousel, the media server sends SDP to the playback terminal through the signaling channel, and transmits the media data to the playback terminal through the data channel. In this way, when the SDP is delayed or lost after a problem occurs in the signaling channel, it is retransmitted , it cannot guarantee that the SDP can be sent to the playback terminal in time when the media type changes, which may cause the playback terminal to play abnormally.

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