topic IPU alpha blending in i.MX Processors

IPU alpha blending

deepanrajanbara — Mon, 04 Apr 2016 11:43:47 GMT

Hi,

I am using i.Mx6 based processor and my doubt is that.

Is it possible to both display in fb0 and save the output buffer to a file at the same time .

When i tried to do so i get segmentation fault.Is there something that am missing. Can Any one help me as am new to IPU.

Thank you,

Deepanraj.A

Re: IPU alpha blending

rogerio_silva — Tue, 05 Apr 2016 13:32:51 GMT

Hi,

Usually alpha blending is made on display processor (DP). As the only output of DP is the display, this will not be an option for you.

You could combine the images using VDIC (Video de-interlace) and send the result to display and other memory location. You will need to implement it on kernel, IPU driver.

Re: IPU alpha blending

art — Mon, 11 Apr 2016 08:03:08 GMT

Seems that you can use Gstreamer for that. For more information, please refer to the Chapter 7 "Multimedia" of the attached document.

Have a great day,
Artur

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------