Video question

In order to display graphics on the RPi, do they first have to be encoded into H264 or MPEG in order for the graphics chip to display them?

Also, is there any info on how to use the graphics controller as a maths engine?

TIA

Reply to
Gareth's Downstairs Computer
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On Thu, 15 Feb 2018 20:24:12 +0000, Gareth's Downstairs Computer declaimed the following:

H.264 (AVCHD) and MPEG are CODECs for encoding video. Typically they have to be decoded for display.

If by "graphics" you just mean images, you likely need to learn the basics of the X-Window system (or whatever is being developed to replace that on modern hardware); or look for an image viewer program (irfanview, gimp if you want to edit too). If you mean /plots/ or /charts/ (to use Excel nomenclature), the matplotlib add-on for Python, R statistics program (though Mathematic is already installed on the NOOBS/Raspbian image)

To my knowledge, Broadcom has not released very much information about the GPU. Consider that the initial booting of an RPi is done by loading a certain file into the GPU, and that file than loads/starts the ARM processor.

--
	Wulfraed                 Dennis Lee Bieber         AF6VN 
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/
Reply to
Dennis Lee Bieber

Well, there's this:

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--- which is interesting by itself, and also has links to other documents.

Reply to
Raymond Wiker

Plenty there to read later, thanks.

Reply to
Gareth's Downstairs Computer

For static images, no - in that respect it's just a dumb framebuffer like any other.

There is some documenation and some libraries - search your Pi for e.g. hello_fft.c

Gordon

Reply to
Gordon Henderson

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