The problem with codecs

[Aroshigami]

Good afternoon, please tell me about the codecs what I'm doing wrong, like downloading a file with the right codec, but there is no question.
Here in the official document it says H264 playback, I'm looking for a file, I see such an item, but at the same time it is already spelled out in the extended paragraphs as MPEG4, which is not produced according to the documentation.
Maybe something needs to be turned on somewhere. I'm new to this business.  
P.S of the Server runs on an AMD Ryzen 3 3200G processor
Thank you all very much  

   
   

[Venson]

Hey there.
Your question is unfortunately not understandable. Could you please try to rephrase and expand on your issue?

[Aroshigami]

Sorry, I'll try it now

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It does not play movies, swears at the file format, although when downloading I look at which codecs are used, I can not figure out the description written by H264, MPEG appears in the description because of this, my content is not produced even which, according to the idea, should work