[ADVICE]. WHICH is the BEST choice for video buffer and display method?

esys9999

Dear all embedded professional,
I would like to get video frame buffer and display on LCD screen.
How data transfer method that is the best choice for video buffer and display in my case?
I have a plan to use PIPE method. I use 2 pipes, one for data (video) frame transfer and one for controlling commands.
My platform is a KIT using DSP (DM3730, Arm cortex A8). Linux distro built based on Yocto Project.
The block diagram like this:

Camera --> DSP kit (Yocto Linux OS)--> LCD touch-screen.

Thank you very much!

SGaist

Hi and welcome to devnet,

You question's not really clear, are you searching for advices on how to do it with Qt or just in general ? If the former, you'll be interested by the QtMultimedia module.

esys9999

Dear sir,
I would like to know How to do it with Qt (Use which module?)
I wanna get the data (video frame buffer) which is processed by DSP and then display it on Qt application form.

Thank for your reply sir!

SGaist

Like I wrote, QtMultimedia would be a starting point.

Do you already have an API to get these DSP processed video frame buffer ?

esys9999

Thank your sir!
I'm going to discover QtMultimedia module on Qt 4.7

SGaist

4.7 ? Then you will have to take a look at the Qt Mobility module.

If you are locked to the Qt 4 series, please upgrade to at least 4.8.7. If not locked then consider using Qt 5.6.0 which just got released and is LTS.