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Method and device for processing encrypted audio and video data

A processing method and technology for encrypting data, applied in the processing field of encrypted audio and video data, can solve the problems of inability to decrypt and play audio and video data, increase network transmission delay, increase data compression delay, etc., so as to facilitate data compression and data transmission. , Improve compression efficiency, improve real-time effect

Active Publication Date: 2019-09-03
安徽文香科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the embodiments of the present invention is that in the prior art, since the audio and video data are encrypted simultaneously based on a specific data format, the audio and video playback device cannot normally decrypt and play the encrypted audio and video data. Moreover, in the process of encryption, it is necessary to continue to wait for the bit stream data of 64-bit packet size to be sent before data transmission, which will lead to increased network transmission delay, resulting in increased data compression delay and reduced data compression efficiency

Method used

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  • Method and device for processing encrypted audio and video data
  • Method and device for processing encrypted audio and video data
  • Method and device for processing encrypted audio and video data

Examples

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Embodiment 1

[0043] The embodiment of the present invention provides a method for processing encrypted audio and video data, which is used for each terminal device, where each terminal device can be a video conferencing terminal or other types of mobile terminal devices, and each terminal device is used for communicating with the remote end. The media server establishes the communication interaction. Specifically, the processing method of encrypted audio and video data in this embodiment, such as figure 1 shown, including the following steps:

[0044] Step S1: Obtain audio and video stream data, and encode the audio and video stream data. The audio and video stream data here refers to the continuous audio data and / or video data that is being recorded by the streaming media device, not the audio and video data that has been recorded by the streaming media device. Therefore, the audio and video stream data in this embodiment is audio data and / or video data recorded in real time, for exampl...

Embodiment 2

[0085] An embodiment of the present invention provides a processing device for encrypting audio and video data, which is used for each terminal equipment, such as image 3 shown, including:

[0086] The first acquiring module 31 is used to acquire audio and video stream data, and encode the audio and video stream data;

[0087] Extraction module 32, is used for extracting characteristic frame data from the encoded audio and video stream data;

[0088] The second acquiring module 33 is configured to acquire the interaction request signaling sent by the server;

[0089] An encryption module 34, configured to simultaneously encrypt feature frame data and interaction request signaling to obtain encrypted data;

[0090] The storage module 35 is used to store the encrypted data in the supplementary enhanced information unit of the audio and video code stream data structure;

[0091] Confirmation module 36, configured to confirm whether the data size of the encrypted data in the s...

Embodiment 3

[0102] An embodiment of the present invention provides a storage medium on which computer instructions are stored. When the instructions are executed by a processor, the steps of the method for processing encrypted audio and video data in Embodiment 1 are implemented. The storage medium also stores audio and video stream data, feature frame data, interaction request signaling, encrypted data, and preset data sizes. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a flash memory (Flash Memory), a hard disk (Hard Disk Drive, Abbreviation: HDD) or solid state disk (Solid-State Drive, SSD), etc.; the storage medium may also include a combination of the above types of storage.

[0103] Those skilled in the art can understand that all or part of the processes in the methods of the above-mentioned embodiments can be completed by instructing related hardware through comp...

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Abstract

The invention discloses a method and a device for processing encrypted audio and video data, and the method is used for each terminal device, and comprises the steps: obtaining audio and video streamdata, and coding the audio and video stream data; extracting feature frame data from the encoded audio and video stream data; obtaining an interaction request signaling sent by a server; encrypting the feature frame data and the interaction request signaling at the same time to obtain encrypted data; storing the encrypted data in a supplementary enhancement information unit of an audio and video code stream data structure; confirming whether the data size of the encrypted data in the supplementary enhanced information unit is smaller than a preset data size or not; and when the data size of the encrypted data in the supplementary enhancement information unit is smaller than the preset data size, performing character supplementary in the supplementary enhancement information unit to enablethe data size of the encrypted data to reach the preset data size. According to the method, the real-time performance of encryption can be improved, the security of information can be further enhanced, the overall compression delay of data is reduced, and the compression efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of audio and video security, in particular to a method and device for processing encrypted audio and video data. Background technique [0002] With the rapid development of network and multimedia technology, more and more audio and video data are widely used on the Internet. Security issues. Therefore, encryption protection of audio and video data is becoming more and more important in Internet communication transmission. [0003] At present, in the process of encrypting audio and video data in the prior art, all the data information of the recorded audio and video files are usually encrypted at the same time as a whole, and the audio and video files are encrypted based on the same key using complex encryption algorithms. For encryption, the data format type of the audio and video files is never considered. However, since the audio and video data is encrypted based on a specific data format at the same tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2343H04N21/2389H04N21/6334
CPCH04N21/2343H04N21/2389H04N21/63345
Inventor 彭泽波朱玉荣
Owner 安徽文香科技股份有限公司