converter performance property problem

Hi nvidia:
Time of the converter to convert one frame video data from YUV422 to YUV420 is tested, the result is time of converter to convert one frame data increased by time(test time is about 3 minutes),if it increased all the time,there will be error or frame losing appear. would you aplly me long time property of converter to convert one frame data. we use usb camera with 30fps and 640x480 definition.

Expected your reply ! Thanks a lot!

Hi feng,
Can you reproduce the issue with tegra_multimedia_api\samples\12_camera_v4l2_cuda ?
It reports framerate after executing ‘ctrl+C’

----------- Element = renderer0 -----------
Total Profiling time = 3.69975
Average FPS = 30.002
Total units processed = 112
Num. of late units = 0
-------------------------------------

You should see framerate drop when the issue happens. However, I don’t think it is an issue in HW converter. Have you checked framerate of your camera source?