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Code rate control method of streaming media gateway

A bit rate control and streaming media technology, applied in the field of network communication, can solve the problem that the sending rate cannot be kept stable, data content is lost, etc.

Inactive Publication Date: 2015-09-16
INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect that the traffic shaping method in the prior art will cause data content loss or the sending rate cannot be kept stable, thereby providing a code rate control method for a streaming media gateway

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  • Code rate control method of streaming media gateway
  • Code rate control method of streaming media gateway

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Embodiment Construction

[0020] The present invention will be further described now in conjunction with accompanying drawing.

[0021] refer to figure 1 The streaming media gateway to which the code rate control method of the present invention is applicable at least includes a data receiving module, a buffer and a data sending module; wherein the data receiving module requests and receives data from an upstream data source through a jitter network (such as an IP network), After the received data is cached in the buffer, it is sent downstream through the data sending module. The communication protocol adopted by the data receiving module to communicate with the upstream data source must allow the receiving module to control the average sending rate of the upstream data source.

[0022] refer to figure 2 , the method of the present invention comprises:

[0023] Step 1), start the data receiving module, and the data receiving module requests data from the upstream data source, and after the data rece...

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Abstract

The present invention relates to a code rate control method for a streaming media gateway, wherein the stream media gateway comprises a data receiving module, a data transmission module and a buffer, and the data receiving module can control the average transmission rate of an upstream data source. The method comprises: turning on the data receiving module, requesting data from the upstream data source, and adding the data to a buffer queue; monitoring the length of the buffer queue, activating the data sending module when a first threshed is reached, getting data from the buffer queue, and starting to transmit data to downstream in a predetermined code rate of the data stream; continuously monitoring the length of the buffer queue, and turning off the data receiving module if the length exceeds an upper warning length and the data receiving module is activated; turning on the data receiving module if the length is less than a moderate length and the data receiving module is turned off; transmitting, by the upstream data source, the data in a rate greater than the current average sending rate if the length is less than a lower warning length and the data receiving module is activated.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a code rate control method of a streaming media gateway. Background technique [0002] The distribution and transmission process of the streaming media service widely uses the HTTP protocol. In the broadcast TV network with NGB or NGOD architecture, the streaming media server obtains streaming data from the content distribution network through the HTTP protocol based on TCP, and after processing, pushes it to devices such as IPQAM in UDP mode, and then sends it to end users. The streaming media server receives the data at the same average rate as the data it pushes, both of which are predetermined bit rates of the program stream. However, in the actual network transmission process, the rate at which data packets arrive at the streaming media server will send jitter. [0003] The downstream IPQAM of the streaming media server has high requirements on the smoothness of the da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801H04L29/06
CPCH04L12/6418
Inventor 陈君李明哲吴京洪樊皓叶晓舟
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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