Method and device for real-time video gateway
A real-time video and gateway technology, applied in the information field, can solve the problems affecting the construction cost and operating cost of communication links, and achieve the effect of ensuring real-time viewing, improving utilization, and reducing the transmission bandwidth of communication links.
Active Publication Date: 2014-02-19
北京瀚景锦河科技有限公司
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Problems solved by technology
However, this will cause a large number of client terminals to send video requests at the same time during peak hours, so that the transmission pressure on the communication link between the video gateway and the video content server will reach a peak value, and this peak value will directly affect the construction cost and cost of the communication link. operating cost
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[0032] The basic idea of the present invention is: the video gateway searches for a matching video program in the local two-level cache according to the video request information of the client terminal, and when no matching video program is found, requests the video program from the video content server and receives the video content The matching video program sent by the server; after obtaining the matching video program, according to the video request information of the client terminal, when it is determined that the specification of the matching video program is different from that requested by the client terminal, the format of the matching video program is converted to the client terminal The requested specification is then sent to the client terminal to play the video program, and when it is determined that the specification of the matched video program is the same as that requested by the client terminal, it is directly sent to the client terminal to play the video prog...
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The invention discloses a method and a device for a real-time video gateway. The method comprises the following steps: firstly searching a matched video program in two levels of buffer at local according to the video request information of a customer terminal; requesting a video program from a video content server when the matched video program is not searched; waiting to receive the matched video program sent by the video content server; transforming the format of the matched video program into the specification requested by the customer terminal according to the video request information of the customer terminal when condition that the specification of the matched video program is different from the specification requested by the customer terminal is determined after the matched video program is obtained; and sending the transformed matched video program to the customer terminal to play the video program; and when the condition that the specification of the matched video program is the same as the specification requested by the customer terminal is determined, directly sending the matched video program to the customer terminal to play the video program. According to the technical scheme provided by the invention, the hardware cost and the realization complexity of the video gateway are reduced, and the requirements of the transmission bandwidth of a communication link are reduced, thus lowering the construction cost of a transmission network.
Description
technical field [0001] The invention belongs to the field of information technology, in particular to a real-time video gateway method and device for video image format conversion and video data transmission. Background technique [0002] The transmission of video data and the mutual conversion between multiple different video formats are usually completed by the video gateway. The video format conversion includes the conversion of video encoding protocol, frame rate, bit rate, resolution, etc. Video gateways are generally real-time processing devices. [0003] In terms of application, the client terminal, video gateway, and video content server cooperate with each other to realize the functions of video on demand and real-time video program playback. That is, the client terminal sends a video request; the video gateway forwards the video request to the video content server, and receives the original video code stream of the video program from the video content server; the ...
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IPC IPC(8): H04N21/232H04N5/268H04N21/231
Inventor 王耀臣徐昕邵冬英呼大明郑海鸥何畅
Owner 北京瀚景锦河科技有限公司