Method used for adding watermark in video and determining watermark information and device

Abstract

The invention relates to the field of video, and particularly relates to a method used for adding a watermark in a video and determining the watermark information and a device. The problems that a special decoder is needed and the universality is poor when PTS is incorporated into the high frequency domain of a video file in the prior art are solved. The method provided by the invention comprise the steps that a number of sub regions are determined; the binary pre-broadcast time information of a target image is determined, and the bit, which is corresponding to the binary pre-broadcast time information, of each sub region is determined; and the special parameter value of each sub region is adjusted, so that a video display terminal determines the binary pre-broadcast time information of the target image according to the parity values of specific parameters of all sub regions of the target image. According to the invention, the parity of specific parameters of all sub regions of the image is adjusted according to the pre-broadcast time information, wherein the watermark is added in the image; and a decoding device can acquire the binary pre-broadcast time information according to the parity of all sub regions and the parity values corresponding to specific parameters of all sub regions.

Description

technical field [0001] The present invention relates to the field of video technology, in particular to a method and equipment for adding watermark and determining watermark information in video. Background technique [0002] With the improvement of network speed, people watch more and more video programs on the Internet, and the main format of videos on the Internet is H.264. The quality of the network is affected by many conditions (such as weather, network load, etc.), which will have a great impact on watching videos. Therefore, the server that provides the video needs to constantly interact with the device watching the H.264 video to perform freeze detection, so as to determine whether there is a freeze phenomenon in the video, and improve the quality of the network channel if there is a freeze phenomenon. [0003] In freeze detection, the PTS (Present Time Stamp, current time stamp) of a frame of image in the video is an important indicator. PTS represents the expect...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for adding a watermark to a video and determining information of the watermark, so as to solve the problem that the existing method of adding a watermark containing PTS information to a video needs to use a dedicated decoder to obtain the PTS of each frame of the video , the problem of poor versatility

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