Cloud terminal, cloud server, media data stream playing system and method

Abstract

An embodiment of the present invention provides a cloud terminal, a cloud server, and a media data stream playing system and method. In the embodiment of the present invention, the cloud server does not decode nor play an original audio / video data stream, but sends the original audio / video data stream to the cloud terminal, so that the original audio / video data stream is decoded by the cloud terminal using a hardware decoder, which saves the network bandwidth, increases the network load capacity, reduces the promotion cost of the cloud terminal, and increases the playing performance of the media data stream.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a cloud terminal, a cloud server, and a system and method for playing media data streams. Background technique [0002] Cloud Terminal (Cloud Terminal) is a general term for terminal equipment and terminal platform services based on cloud computing business model applications. Cloud terminal technology can share host resources, greatly reduce hardware investment and software license expenses, and realize single-machine multi-user, each Users independently enjoy complete PC functions. [0003] The existing audio and video playback technology decodes the audio and video data stream in the virtual machine of the cloud server, and the player on the cloud server calls the decoder to decode the audio and video data stream into frame-by-frame image and audio data, and then renders Then, the cloud server packs the frame-by-frame image and audio data with the virtua...

AI Technical Summary

Problems solved by technology

Since the most commonly used MPEG4 format is relatively complex, the decoding algorithm is also very complex, resulting in a very large amount of decoding calculations on the cloud server

Also, commonly used bit stream parsing, variable length entropy decoding and other operations are suitable for parallel processing, while the CPU of cloud servers is generally designed for general computing and is not completely suitable for parallel processing, thus occupying most of the CPU computing power

Therefore, virtual machine decoding makes the computing load of the cloud server too large, resulting in a small number of cloud terminals that can be afforded by each cloud server, requiring more cloud servers to be actually deployed, increasing the promotion cost of cloud terminals

[0005] In addition, in the prior art, the cloud server packs and compresses the decoded audio and video data, frame-by-frame image and audio data and virtual desktop to the cloud terminal. Although the frame-by-frame transmitted data has also been compressed, its compression rate Compared with the inter-frame compression technology of MPEG4, the compression rate is lower, and the requirements for network bandwidth are very high, resulting in a decrease in network load capacity, and the frame-by-frame transmission of audio and video has a large and unstable network delay, resulting in playback Not smooth, poor user experience

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