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Method for processing material exchange format files

A technology of material exchange format and processing method, which is applied in the field of material exchange format file processing, and can solve problems such as hard-to-play content, difficult digital movie content, effective control, etc.

Inactive Publication Date: 2010-04-07
数码辰星科技发展(北京)有限公司
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  • Abstract
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Problems solved by technology

However, the video materials of digital movies are hard disk data stored in a special digital coding structure, and most digital movies are stored in an encrypted manner. The storage of the actual film content in the film distribution package, so it is impossible to truly meet the review requirements for the film content
On the other hand, due to the difficulty of directly cutting digital movie content, it is also difficult to effectively control its playback content

Method used

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  • Method for processing material exchange format files
  • Method for processing material exchange format files
  • Method for processing material exchange format files

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Embodiment Construction

[0037] In order to effectively control the content of the digital movie, the present invention reprocesses the content data contained in the MXF file of the digital movie after obtaining the digital movie that needs to be reviewed, so as to realize the content control of the reviewed movie. Here, the MXF is a digital package structure used to store movie data in digital movies.

[0038] see figure 1 The shown MXF file processing flow specifically includes the following steps:

[0039] Step 110 , judging whether the MXF file to be processed is an encrypted file, if yes, execute step 121 , otherwise execute step 111 .

[0040] Wherein, it can be judged whether the MXF file to be processed is an encrypted file by analyzing the key flag bit in the MXF file (the flag bit is set in the file header to indicate whether the MXF is an encrypted file).

[0041] Step 111, from the plaintext MXF file, analyze each KLV (KLV, Key-Length-Value key frame-length-value) structure contained in ...

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Abstract

The invention provides a method for processing material exchange format (MXF) files, which comprises the following steps: analyzing content data from the MXF files; processing the content data into updated content data; and re-encapsulating the updated content data in the MXF files. The invention can control the censoring content of a digital film upon the satisfaction of DCI criteria.

Description

technical field [0001] The invention relates to the technical field of digital movies, in particular to a method for processing MXF (Material Exchange Format) files. Background technique [0002] In 2005, the DCI alliance composed of Disney, Fox, Paramount, Warner Brothers and other major film production companies announced a technical standard called "Digital Cinema System Technical Specification (V1.0)", which standardized The relevant technical requirements of digital movies have made the production and projection of digital movies a unified international standard. [0003] Compared with foreign countries, the development of my country's digital film production industry is relatively backward. At present, the number of domestic post-production companies capable of digital film coding production is very small, and the professional equipment used by these companies in digital film coding production is basically foreign It is produced by the manufacturer. At present, there i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/00G11B20/12
Inventor 肖立群耿克明王忠平张晓玲
Owner 数码辰星科技发展(北京)有限公司
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