i.MX Processors中的主题 USB Camera preview distortion when settings button pressed

USB Camera preview distortion when settings button pressed

mghasan — Thu, 20 Mar 2014 10:47:56 GMT

Hi,

We are seeing Camera preview distortion while USB camera is connected and camera setting dialog is in foreground.

Scenario :

1. Connect USB camera.

2. Go to default Google Camera application (GMS) and open USB camera > select camera settings.

3. Some distortion will be seen on the screen and after few minutes preview frames stops due to timeout issue in Camera HAL at select(mCameraHandle+1, &rfds, NULL, NULL, &tv) in UvcDevice.cpp.

This issue is observed with applications using Surface Texture (OpenGL ES texture) instead of Surface Holder for output destination.

Setup:

Android JB 4.2.2.1.1.0 build

Custom board based on FSL IMX6 Sabresd

Camera: Logitech Webcam C930e and C310

Could you please provide the patches for the above issue for Android 4.2.2?

Regards,

Hasan

Re: USB Camera preview distortion when settings button pressed

Wlodek_D_ — Thu, 20 Mar 2014 11:44:39 GMT

Dear Mohammed Hasan,

Thank you for your post, however please consider moving it to the right community place (e.g. i.MX Community ) for better visibility.

For details please see general advice https://community.freescale.com/docs/DOC-99909

Thank you for using Freescale Community.

Regards,

Wlodek_D.

Re: USB Camera preview distortion when settings button pressed

saurabh206 — Thu, 20 Mar 2014 11:59:19 GMT

Hi,

You can see some improvement by enabling Force GPU rendering.

settings->Developer options-->Force GPU rendering.

Regards,

Saurabh

Re: USB Camera preview distortion when settings button pressed

mghasan — Fri, 21 Mar 2014 02:18:14 GMT

Hi Saurabh,

I have enabled Force GPU rendering but still same distortion is seen.

Re: USB Camera preview distortion when settings button pressed

liyu1 — Thu, 23 Apr 2015 06:08:01 GMT

HI :

I met the same issue ! please tell me to Solve it ？