Method and device for playing multimedia stream data

Abstract

The invention discloses a multimedia stream data transmission control method and device, and the method comprises the steps: recording a current moment as a first moment when an edge server receives a first data packet of a real-time video issued by a content server; enabling the edge server to detect whether a currently received data packet of the real-time video contains a data frame corresponding to the first moment; if yes, marking the data frame corresponding to the first moment as a key frame, and for the key frame and all data frames behind the key frame in the data frame sequence contained in the current data packet, re-executing coding and multiplexing operations, and then issuing the generated data packet to corresponding user equipment; otherwise, discarding the currently received data packet, and re-executing the step when receiving the data packet of the next real-time video. By adopting the method and the device, the playing delay of the real-time video can be effectively reduced.

Description

technical field [0001] The invention relates to computer application technology, in particular to a method and device for playing multimedia streaming data. Background technique [0002] In recent years, global Internet traffic has grown dramatically. Video is a major contributor to this growth and will continue to dominate web traffic. This trend is a result of the proliferation of devices such as smartphones, tablets, gaming devices and smart TVs used to access video content. According to Cisco's forecast, future network traffic will show an exponential growth trend. By 2021, global Internet users will reach 4.6 billion, network access devices will reach 27.1 billion, and the proportion of video data access will increase from the current 73% to 82%, the monthly data volume will exceed 190EB (1EB equals 230GB). The huge amount of data will put enormous pressure on the communication network and data transmission system. [0003] With the improvement of mobile uplink and ...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor finds that the existing video playback scheme cannot meet the above-mentioned needs

The main reasons are as follows: in the existing video playback scheme, the client needs to cache a certain amount of data packets, and due to the limitation of video display, in order to avoid the problems of blurred screen and mosaic, the content server needs to use the key when constructing the first data packet The frame is the start frame, and the position of the start frame may be quite different from the time point when the user requests the video. In this way, on the one hand, there will be a large gap between the video screen played by the client and the scene screen recorded in real time. On the other hand, unnecessary transmission and playback delays will be generated because the user client downloads more expired data frames. Therefore, the existing video playback solution cannot meet the above-mentioned real-time video playback requirements. synchronization requirements

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