Advertisement insertion method and device in video-on-demand system

Abstract

The invention discloses an advertisement insertion method and device in a video-on-demand system, which is applicable to a hybrid fiber coax network. The method comprises the following steps: video programs and advertisements are implanted into a content management server to generate an index file; the video programs, the advertisements and the index file are sent to a video server; a release management server generates a user interface for the video programs and supplies the interface to a set top box for video-on-demand service; the set top box acquires the video-on-demand addresses of the video programs and sends a video-on-demand request to a session management server, and the session management server forwards the request to the video server and applies for IPQAM video site resources; and the video server pushes the video programs and the advertisements to IPQAM equipment according to a play list and the index file generated by an advertisement management server and sends the video programs and the advertisements to the set top box after modulation. The technical scheme can support a dynamic play list, and improve the bottlenecks that the traditional advertisement insertion system is high in distribution cost and the play list can not be selected dynamically.

Description

technical field [0001] The invention relates to the technical field of video-on-demand, in particular to an advertisement insertion method and device in a video-on-demand system. Background technique [0002] As an emerging technology, digital TV has developed rapidly in recent years because it has the advantages of high image quality, superior sound quality, and bandwidth saving compared with analog TV. my country plans to stop the broadcast of analog TV by 2015 and complete the analog TV With the transition of digital TV, the production, transmission and broadcasting of TV programs are fully digitized. [0003] Video on Demand (VOD) system, as a new business, has developed rapidly along with the development of digital TV. However, due to its single operation mode, it can only earn profits by users ordering movies. Moreover, the radio and television department has to purchase the copyright of movies. Therefore, operating costs continue to increase. In order to expand its p...

AI Technical Summary

Problems solved by technology

Even multi-program streams can process any program, but this method needs to demultiplex the original film and re-encode and decode near the insertion point, which changes the characteristics of the original film and at the same time affects the advertising insertion point. Changes to the nearby frame types (generally encoding B frames into I or P frames so as not to depend on the data before the entry point) will inevitably cause fluctuations in the instantaneous bit rate of the original film, and for the HFC network, Code rate fluctuations are not allowed, especially for modulation equipment such as IPQAM. Code rate fluctuations have a great impact on their modulation quality

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