# Android WOWZCameraView - need to modify frames and publish modified frames

**URL:** <https://community.wowza.com/t/android-wowzcameraview-need-to-modify-frames-and-publish-modified-frames/52495>\
**Category:** Wowza GoCoder SDK\
**Created:** [December 15, 2018, 12:22am UTC](https://community.wowza.com/t/android-wowzcameraview-need-to-modify-frames-and-publish-modified-frames/52495 "2018-12-15T00:22:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Tony\_Gaw](https://avatars.discourse-cdn.com/v4/letter/t/cab0a1/32.png) [@Tony\_Gaw](https://community.wowza.com/u/Tony_Gaw)\
**Post date:** [December 15, 2018, 12:22am UTC](https://community.wowza.com/t/android-wowzcameraview-need-to-modify-frames-and-publish-modified-frames/52495/1 "2018-12-15T00:22:49Z")

</div>

I am using WOWZCameraView and would like a way to a) access the individual frames,  
b) modify the frames (I’m using OpenCV to process images), and c) write the modified  
frames back to the WOWZCameraView to be broadcasted. I’ve looked at  
WOWZRenderAPI.VideoFrameListener, but not sure how to do c).

Is this possible? If yes, could you please provide some sample code (for example,  
change the captured frame to grey, and render the grey frame for broadcasting).

I understand that in iOS, this is fairly straightforward using WOWZVideoSink.