A method of packing and encrypting audio and video media files based on mxf

A media file and encryption method technology, which is applied in the field of packaging and encryption based on MXF files, can solve the problems of cumbersome management and occupying storage space, and achieve the effects of streamlining programs, increasing security, and reducing cumbersome management

CN104602125BInactive Publication Date: 2018-02-16INST OF ACOUSTICS CHINESE ACAD OF SCI +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-02-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a kind of packaging and encryption method based on MXF audio-video media file, this packaging and encryption method creates a corresponding asset information file for each MXF audio-video media file in the program; Write the file name and ID, program name, the episode number of the film included in the program, the ID of the key and the key value into the corresponding asset information file; the obtained asset information file is encrypted, and the key is tied to the system unique identifier It is determined that the encrypted asset information file and its corresponding MXF audio and video media file are stored together to generate a distribution file. The method can realize the distribution of digital movies for different users through the generated asset information files, without using a database, reduces the tedious management of the database, and realizes the simplification of the program.
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Description

technical field

[0001] The invention relates to the technical field of MXF file application, in particular to an MXF file-based packaging and encryption method. Background technique

[0002] Digital film is the trend and direction of world film development, and it is called the third revolution of film technology. In order to standardize the development of digital cinema. In June 2002, the seven major Hollywood production companies - Disney, MGM, Fox, Paramount, Sony Pictures Entertainment, Universal Studios and Warner Bros. jointly established DCI (Digital Cinema Initiatives, Digital Cinema Initiatives Alliance) , successively formulate and release a number of technical standards related to digital cinema. The Digital Cinema Technical Committee under SMPTE (Society of Motion Picture and Television Engineers) developed the SMPTE DC28 standard, which is currently the technical standard that the global digital cinema development focuses on and refers to. It is in the process...

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Embodiment Construction

[0016] The structure of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Such as figure 1 , 2 Shown, a kind of packing and encryption method based on MXF audio-video media file, this packing and encryption method comprise:

[0018] Step 1) Create a corresponding asset information file for each MXF audio and video media file in the program. The asset information file includes: the name of the program, the number of episodes the program contains, and the MXF audio and video corresponding to each episode of the program The file name and ID of the file, the file name and ID of the synthesized playlist, the file name and ID of the packed list, the ID and key value of the key, and the asset information file is stored in an encrypted manner;

[0019] Step 2) Write the file name and ID of the packaged MXF audio and video media file, the program name, the number of episodes the program contains, the ID...