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Method and system for encrypting and decrypting plug-in subtitles and plug-in subtitle system

A technology for external subtitles and encryption methods, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of panoramic video quality degradation, reduce user experience, etc., to reduce degradation phenomenon, improve user experience, and reduce impact. Effect

Active Publication Date: 2017-05-31
BEIJING QIYI CENTURY SCI & TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a method and system for encrypting and decrypting external subtitles, and an external subtitle system, so as to solve the problem in the prior art that the quality of panoramic video tends to degrade in video frames, thereby reducing user experience.

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  • Method and system for encrypting and decrypting plug-in subtitles and plug-in subtitle system

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] The present invention proposes a method for implementing encryption of external subtitles in a panoramic video stream, in which subtitle information is embedded in a specified area in a video frame for encoding, and the subtitle information embedded in the specified area is decoded at the same time as the playback end decrypts the video frame, and Rendering is performed to solve the problem in the prior art that the quality of the panoramic video tends t...

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Abstract

The invention provides a method and system for encrypting and decrypting plug-in subtitles and a plug-in subtitle system. The method provided by the invention comprises the following steps: embedding the subtitle information in a video frame, and encrypting and sending the original subtitle information, when the play terminal decodes the video, decrypting the original subtitle information and extracting the embedded original subtitle information, and rendering the original subtitle information in the video frame. By adopting the method provided by the invention, the impact on the video quality can be reduced, the quality degradation of panoramic videos can be reduced, and thus the user experience can be improved.

Description

technical field [0001] The invention belongs to the technical field of virtual reality subtitle processing, and more specifically relates to a method and system for encrypting and decrypting external subtitles, and an external subtitle system. Background technique [0002] In recent years, virtual reality (Virtual Reality, VR) has become the most concerned technology. VR refers to a computer simulation system that can create and experience a virtual world. It uses various means to simulate and generate a virtual environment, immersing users in the virtual environment and generating interactive three-dimensional dynamic vision and system simulation of physical behavior. The playback of panoramic video is one of the key technologies, and major video content providers have invested the most energy in research. In order to bring users a better panoramic video playback experience, R&D personnel have proposed many new technologies from aspects of panoramic video production, forma...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/431H04N21/434H04N21/4405H04N21/4408H04N21/8358
CPCH04N21/4316H04N21/4346H04N21/4405H04N21/4408H04N21/8358
Inventor 刘楠
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD
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