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USB superspeed peripherals

newton_inc
Level 1
10 sign-ins 5 sign-ins First solution authored
Level 1

Hi team, 

I'm using cypress fx3 to stream a static test pattern as video to vlc, to check for sharpness and greyscales.  The format is         yuv 422, y:u:y:v (yuy2) as detected by vlc codec information tab,  and res is  640x480 at 60fps.

The problem i face is as follows, the video displayed by the vlc is stable(not losing sync) but it is not sharp at the edges(ie. it lacks sharpness), but when i do a video->take snapshot in vlc, the image saved by vlc is same as the  original test pattern sent.

Can any one please tell me what settings should i do in vlc to get video decoded properly. I have attached 3 images for ref, test_pattern_640 is the original image sent as video, snapshot the imgae obtained from vlc using vlc->take snapshot, snippet is the  video screen captured using  the snippet tool while video is playing on vlc.

-Thanks

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1 Solution
newton_inc
Level 1
10 sign-ins 5 sign-ins First solution authored
Level 1

Hi, i got this issue solved, by changing the uvc player. 

 

View solution in original post

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2 Replies
AliAsgar
Moderator
Moderator 50 likes received 500 replies posted 250 replies posted
Moderator

Hi,

Could you confirm if the video is being displayed properly on other host application like AmCap?

What changes were made to the default AN75779 firmware with regards to the UVC protocol and video attributes?

Best Regards,
AliAsgar

newton_inc
Level 1
10 sign-ins 5 sign-ins First solution authored
Level 1

Hi, i got this issue solved, by changing the uvc player. 

 

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