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TVP 5158 capture problem

Other Parts Discussed in Thread: TVP5158

Hi all,

I am using DM8148 EVK with AVBOIS

Now I have some problems

(1) The frame rate is decreasing.

      When I run a simple sample, and the process is

      4 channels CVBS -->TVP5158 capture --> M2M_DEI -->DISPLAY

      In the beginning, the frame is 27 (what not 30 ?)

      After a period of time ( 5 minutes to 30 minutes), the frame rate becomes 14 ?!

      It is very strange since the program doesn't do other work, just capture and display

      Is there any idea to explain this?

(2) The video is always shaking vertically. 

      I found if I change the following setting, the video frame won't shake, but the frame rate decreases to 22

      if (Vps_platformIsEvm())
      {
        pCreateArgs->videoCaptureMode =        VPS_CAPT_VIDEO_CAPTURE_MODE_MULTI_CH_PIXEL_MUX_EMBEDDED_SYNC;// video shaking
//pCreateArgs->videoCaptureMode = VPS_CAPT_VIDEO_CAPTURE_MODE_MULTI_CH_LINE_MUX_EMBEDDED_SYNC; // fps = 22, no shaking
        }

Thank you.

Regards,

Killo