How to get frame raw data in dsplink?

Hi Changsheng,

Thanks for your post.

I assume, you are using omapl138 EVM or experimenter kit, then the DVSDK supports these devices.

If the above is true, as per DVSDK 4.03 release notes, it is absolutely possible to get raw frame data thru. dsplink since it has multimedia codec engine framework accessible via both DSP RTOS and linux kernel and it has a capability to decode/encode video frames by establishing a dsplink between ARM & DSP core. Also, you could use gstreamer pipelines examples to decode/encode video frames. But there is a limitation in using VPIF which is described below:

Limitation: The Graphical LCD (GLCD) is enabled by default in the kernel shipped with the DVSDK. To use the Video Port Interface (VPIF) on the UI card, the GLCD must be disabled and the VPIF enabled in the kernel. These devices are pin multiplexed and can't be used simultaneously on the OMAP-L138 EVM with the UI card. Information on how to enable the VPIF in the kernel can be found in Community Linux PSP User's Guide which is provided with the DVSDK, its located in the $(DVSDK)/pspdirectory. Refer to the Configuring Linux Kernel and the Linux drivers usage sections

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/dvsdk/DVSDK_4_00/latest/index_FDS.html

From the above link, please check the release notes, quick start guide and omapl138 software developer's guide for more information on the same.

Thanks & regards,

Sivaraj K

Hi Sivaraj Kuppuraj:

     Thanks very much!

     I had a project for OMAP-L138, using DVSDK4.03. 

     I want to process frame data in DSP,so I must get frame raw data in DSP. So i think i cann't get raw data through gstream. 

     Is it right?

     Can you tell me a short cut to get frame raw data in dsplink? Or other link that run at dsp.

     Thanks very much!

Is there any get camera raw data example? I find that in DVRSDK, all example is process video or image file data.

Who can help me ?

Thanks.

Hi Changsheng,

Thanks for your update.

I don't think, there are examples for raw data capture from a standard PAL/NTSC camera. We do have examples only for video/image capture thru. VPIF camera sensor.

Thanks & regards,

Sivaraj K