Where can I find information about the four letter codes used by the compression parameter of AVIFILE in MATLAB?

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MathWorks Support Team 2009 年 6 月 27 日

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編集済み: MathWorks Support Team 2022 年 11 月 4 日

I would like to create an AVI-file using a custom codec. The documentation states that I need specify a "four-character code that identifies the codec (typically included in the codec documentation)." I can not locate this four digit code in the codec documentation.

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MathWorks Support Team 2022 年 11 月 4 日

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編集済み: MathWorks Support Team 2022 年 11 月 4 日

The four-character codes which need to be specified to select the codec are sometimes referred to as FourCC codes. Each codec has a unique four-letter code on Microsoft Windows. There are several websites that list these codes.

For example, to specify the Indeo 5 codec you would use the command

f=avifile('tmpmpg.avi','compression','IV50')

Note that to use a custom codec, it must be installed in your computer.