V4L2 delayed to December?

Lee

If you are referring to the V4L2 based capture for DM816x & DM814x in the EZSDK, then it is correct. We had to move the availability of the driver in the SDK until EZSDK 5.04 which is planned for 1Q12.

The V4L2 display will be available in the EZSDK 5.03 release in Nov.

Cheers
Ebby

Ebenezer said:

If you are referring to the V4L2 based capture for DM816x & DM814x in the EZSDK, then it is correct. We had to move the availability of the driver in the SDK until EZSDK 5.04 which is planned for 1Q12.

The V4L2 display will be available in the EZSDK 5.03 release in Nov.

Yes, I am asking about the V4L2 capture.  Display I already have working by use of direct calls to the ioctls and mmap.  Waiting for EZSDK 5.04 may be a problem for us.  Which documents should I look at to figure out how to write our own capture driver?

Lee

Ebenezer said:

The V4L2 display will be available in the EZSDK 5.03 release in Nov.

I don't understand this.  What is the point of having V4L2 just for output when fbdev, which already exists, also does output?

Lee

Hi,

FBDEV can only output RGB as graphics plane in DM81xx supports only RGB display on graphics plane. V4L2 display is required to output YUV. Again video plane in DM81xx supports only YUV.

Regards,

Hardik Shah

Hi,

I am a little bit confused right now.

Is this v4l2 video capture the same thing with digital capture like DVI or HDMI?

If we cannot get the v4l2 video capture, how could we capture from Dvi or HDMI?

Could anyone clarify this for me.

Thanks in advance,

Jun

Hi,

We have HDMI capture for our VC daughter card. That is through open Max  and media controller binary. We are planning to have V4L2 capture driver by 4Q11 and with that you wil have TVP7002 capture and it will be easy to add support for SIL1161 DVI capture present on IO expansion board. For now you can use open max ezsdk which supports TVP7002 capture.

Regards,

Hardik Shah

Thanks for your quick reply Hardik

I will try it today.

Jun

Hi Hardik

I tried to do the DVI capture, but failed.

In my understanding, if want to capture from DVI the only change should be made in the capture-encode example is

  //sVidDecParam.videoDecoderId = OMX_VID_DEC_TVP7002_DRV;
  sVidDecParam.videoDecoderId = OMX_VID_DEC_SII9135_DRV;

After I did this modification and rebuilt the capture-encode example and run it, there is nothing displayed on my screen.

The size of encoded file is also size.

My program will hang like this:

---

Buffer Size computed: 4147200                                                  
set input port params (width = 1920, height = 1080)setting input and output mem
got eventEnable/Disable Event                                                  
 connect call for capture-Dei                                                  
  connect call for dei- encoder                                                
  connect call for dei-display 

Any suggestions?

Thanks in advance,

Jun

Sorry for the last post.

I misunderstood your reply.

Now it is pretty clear to me that Openmax has the HDMI capture support, but the board only has DVI hardware.

Thanks,

Jun