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Video data transmission method and device

A video data transmission and data packet technology, applied in the field of data transmission, can solve problems such as loss and out-of-order data packets, and achieve the effects of improving device performance, improving real-time performance, and ensuring reliability.

Inactive Publication Date: 2017-05-31
LETV HLDG BEIJING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for video data transmission, which are used to at least solve the problem of out-of-sequence and loss of data packets in the prior art described above when video data is transmitted

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  • Video data transmission method and device

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0021] It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0022] The invention is applicable to numerous general purpose and special purpose computing system environments or configurations. Examples: personal computers, server computers, ...

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Abstract

The embodiment of the invention provides a video data transmission method. The video data transmission method comprises the following steps: determining a lost data packet according to at least two packet loss confirmation mechanisms based on the continuity between the serial number information of a received first UDP data packet and the serial number information of second UDP data packet at the latest in a receiving buffer zone; and sending a corresponding UDP resending request to a sending end according to the determined lost data packet. The invention further provides a corresponding device. By use of the video data transmission method and device provided by the embodiment of the invention, the video data is transmitted based on a UDP protocol, so that the instantaneity of the data transmission, especially the stream media data, is greatly improved. The selective transmission of the data is realized by resending the lost data packet, the risks of seriously jamming the network, disordering and losing the data when the data is resent in mass are lowered, the lagging and delaying in the video playing are reduced, the packet loss management under different network status is enhanced, and the device performance is improved.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to a video data transmission method and device. Background technique [0002] With the development of network technology, more and more people start to pay attention to the live video service. At present, in various video live broadcast services, such as network live broadcast, multi-person video conference, etc., in order to ensure data reliability, a protocol based on TCP (Transmission Control Protocol, Transmission Control Protocol) is usually used to transmit audio and video data. [0003] The TCP protocol is a connection-oriented transmission protocol. A connection needs to be established before communication, and the transmission delay is relatively large. Moreover, although the confirmation and retransmission mechanism and flow control mechanism in the TCP protocol can ensure reliable data transmission, the processing process is complicated and the efficiency is not high, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/643H04N21/845H04N21/433H04N21/647
CPCH04N21/4331H04N21/643H04N21/64776H04N21/8456
Inventor 肖旭
Owner LETV HLDG BEIJING CO LTD
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