How to restart an capture which has been stop before on TI8168?

Jason Hsui

I am using DVR RDK 4.0. I meet a problem with capture.

In my use case:

I do FVID2_stop on capture then call IOCTL_VPS_CAPT_FLUSH and make sure all frames has been flushed from capture driver.

After that I re-queue frames to capture driver and call FVID2_start on capture.

But there will be no captured frame all the time.

Does the capture driver support this use case?

Thanks!

over 12 years ago

0 Brijesh Jadav over 12 years ago

TI__Guru**** 476505 points

Hi,

This is supported and there is no issue in this. Can you please print the statistics by pressing 'i' and share it?

Rgds,

Brijesh

0 Jason Hsui over 12 years ago in reply to Brijesh Jadav

Intellectual 765 points

I just modified captureLink_drv.c to do that.

I added processing in CaptureLink_drvStart: If frames are flushed(called CaptureLink_drvStop before),

re-queue frames to driver before calling FVID2_start by call FVID2_queue without any error.

I only use one capture instance(PORTA) with non-mux 16bit embedded sync mode.

In host(A8), I just do System_linkStart, System_linkStop, System_linkStart in steps.

After the second System_linkStart calling, there will no captured data.

But the port status could detect the width and height of video sources.

0 Brijesh Jadav over 12 years ago in reply to Jason Hsui

TI__Guru**** 476505 points

Ok, so in this case, VIP port is capturing, but it looks like driver is not configuring input buffers. Could you please print the driver statistics by pressing 'i' on the console when this issue happens?

Regards,

brijesh

0 Jason Hsui over 12 years ago in reply to Brijesh Jadav

Intellectual 765 points

Sorry my fault. I think I re-queued some of the frames with twice times.

Now capture could get captured data after resume.

Thank you for you replay!

Processors

Processors forum

How to restart an capture which has been stop before on TI8168?