A multi-network concurrent transmission method for scalable coded video streams

A technology for encoding video streams and transmission methods, which is applied in the field of multi-network concurrent transmission, can solve the problem of out-of-order arrival of data packets without considering the access network load balance, and achieve the improvement of image peak signal-to-noise ratio, high practicability, and improved video quality. quality effect

Inactive Publication Date: 2018-02-16
INST OF ACOUSTICS CHINESE ACAD OF SCI
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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 shortcomings of the multi-network concurrent transmission method in the prior art that does not consider the load balancing between access networks and the out-of-order arrival of data packets when doing packet scheduling, thereby providing a method that can improve heterogeneous access A Method for Parallel Transmission of Video Stream Performance in Network

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  • A multi-network concurrent transmission method for scalable coded video streams
  • A multi-network concurrent transmission method for scalable coded video streams
  • A multi-network concurrent transmission method for scalable coded video streams

Examples

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Embodiment Construction

[0026] The present invention will be further described now in conjunction with accompanying drawing.

[0027] figure 2 It is a schematic diagram of an application scenario of heterogeneous multi-network concurrent transmission of scalable coded video streams. It can be seen from the figure that multimedia mobile terminals have two accessible networks: WiFi network, 3G or 4G wireless communication network. If the multimedia mobile terminal needs to obtain scalable coded video stream data from the video stream server, it can use the transmission path of "WiFi network, Internet", or "3G or 4G wireless communication network, Internet" transmission path. In other words, the data packets in the scalable coded video stream stored by the video streaming server can be transmitted through the transmission path of "WiFi network, Internet", or through the transmission path of "3G or 4G wireless communication network, Internet". Transmission path transmission. Which accessible network t...

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Abstract

The invention relates to a multi-network concurrent transmission method for scalable coded video streams, comprising: classifying network abstraction layer units in scalable coded video streams, and classifying network abstraction layer units that have a greater impact on video quality as the first class, classify the network abstraction layer units that have less impact on video quality into the second class; in the first class and the second class, respectively sort the network abstraction layer units in the class according to the order from large to small; Allocate the accessible network to each network abstraction layer unit after sorting, among them, for the network abstraction layer unit in the first category, allocate the accessible network with the smallest packet loss rate and available capacity, for the second category The network abstraction layer unit in , allocates an accessible network with the minimum delay and available capacity that meets the packet loss rate requirements.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a multi-network concurrent transmission method for scalable coded video streams. Background technique [0002] In recent years, the mobile video service has grown rapidly and has gradually become the dominant service of the mobile Internet. According to Cisco's market research report, mobile video traffic is expected to account for more than half of global mobile traffic by 2015. However, transmitting high-quality video streams often requires a large amount of bandwidth. For example, it takes an average of 6-8Mbit / s to transmit an H.264 encoded 1080P video. Although the broadband wired network can meet the transmission requirements of such high-quality video streams, it is difficult to achieve high-quality video quality through a single wireless access network. This is because the wireless access network has limited resources and time-varying channels, and only using a sin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/647H04N19/33
Inventor 邓振杰刘银龙胡亚辉周旭慈松赵志军谭红艳
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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