Information processing method applied to video transmission and terminal equipment

Abstract

The embodiment of the invention discloses an information processing method applied to video transmission and terminal equipment. The method comprises the steps that a sending end (namely first terminal equipment) firstly obtains a target I frame of a video code stream at the current moment, target information to be transmitted is embedded into the target I frame through a digital watermarking algorithm to obtain a watermark I frame, and finally the video code stream containing the watermark I frame at the current moment is sent to a receiving end (namely second terminal equipment). In other words, the sending end embeds the target information needing to be transmitted into the target I frame through the digital watermarking algorithm and sends the target information to the receiving end along with the video code stream, that is, the target information needing to be transmitted is reliably and completely transmitted to the receiving end in real time through an existing media stream channel, and extra flow is not generated.

Description

technical field [0001] The present application relates to the fields of image processing and reliable covert communication, in particular to an information processing method and terminal equipment applied to video transmission. Background technique [0002] With the popularity of smart terminal devices such as mobile phones and tablets, consumers are using video call applications (such as WeChat, Facetime, etc.) installed on these smart terminal devices more and more frequently, especially among young consumers. The trend of this type of application replacing the telephone service of traditional operators can be seen. Teenage users often use interactive special effects when using the above-mentioned video calling applications. For example, user A holding mobile phone a and user B holding mobile phone b conduct a WeChat video chat. During the video chat, user A can graffiti and paste stickers on the video image of user B displayed on the display interface of mobile phone a f...

AI Technical Summary

Problems solved by technology

[0005] There are shortcomings in the above-mentioned processing methods of target information

1) Selecting the control signaling channel to transmit the target information to the terminal equipment of user B has the following defects: a. High time delay

2) Selecting the media stream channel to transmit the target information to the terminal equipment of user B has the following defects: a, if the RTCP vacant flag bit is used to transmit the target information, the number of RTCP vacant flag bits is limited, and the amount of data transmitted is very limited, that is, The data volume requirements of the target information are very high

b. If the target information to be transmitted is compressed and encoded and then placed in the RTCP standard stream for transmission, the encoding / decoding process needs to be changed, that is, the internal process of the H.264 / H.265 algorithm needs to be changed, which will generate additional traffic and Poor portability and practicability

In addition, packet loss is common in media stream channels, and the above two methods of transmitting target information through media stream channels cannot cope with packet loss.

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