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Flow control method, device and system for variable bit rate media stream

A control device and flow control technology, which is applied in the video field, can solve problems such as flow control failure, and achieve the effect of simple implementation and solution failure

Active Publication Date: 2020-08-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a flow control method, device and system for variable code rate media streams, which can solve the problem of flow control failure in the prior art caused by changes in the code rate of the code stream

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  • Flow control method, device and system for variable bit rate media stream

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Embodiment Construction

[0045] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0046] Such as figure 1As shown, the present invention provides a flow control method of a variable bit rate media stream, which is applied to the scene where the player of the set-top box plays the variable bit rate media stream from the streaming media server, and the method includes:

[0047] Step 11, the control device monitors the first current value of the cache usage rate of the set-top box;

[0048] Step 12, the control device judges whether the first current value is greater than or equal to an overflow threshold; the overflow threshold can be preset according to the situation.

[0049] Step 13, when the first current value is greater than or equal to the overflow threshold, the control device performs flow control by separating the state betwe...

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Abstract

A flow control method, apparatus and system for variable bitrate media stream. The flow control method for variable bitrate media stream is applied to the scenario that a player of a set-top box plays the variable bitrate media stream from a stream media server. The method comprise that: a control apparatus monitors a first current value of the set-top box cache usage rate; the control apparatus judges whether the first current value is bigger than or equal to an overflow threshold; when the first current value is bigger than or equal to the overflow threshold, the control apparatus performs the flow control by separating the statuses of the player and the stream media server, until a second current value of the set-top box cache usage rate is smaller than the overflow threshold.

Description

technical field [0001] The present invention relates to the field of video, in particular to a flow control method, device and system for variable code rate media streams. Background technique [0002] At present, there are three main modes of streaming media transmission technology: point-to-point (Unicast), multicast (Multicast) and broadcast (Broadcast). Point-to-point is generally called unicast, and unicast is based on two basic transmission protocols, TCP (Transmission Control Protocol) and UDP (User Datagram Protocol). TCP protocol is a reliable transmission protocol, but its efficiency is relatively low. The UDP protocol is an unreliable transmission protocol, and the transmission quality is guaranteed by the user, but it has higher transmission efficiency. Streaming media is usually transported using UDP. [0003] The UDP protocol does not define a control method for the transmission speed between two communication nodes. In the IPTV (Internet Television) system...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/438H04N21/6587H04N21/6437
CPCH04N21/2401H04N21/6373H04N21/6437
Inventor 陆忠孝
Owner ZTE CORP
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