AndroidUSBCamera
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jiangdongguo
sometimes the screen is gray in huawei mate10 while is preview
I think it is because of camera. Camera has auto focus feature, it will give a little gray, then light. If camera preview is full gray, can not display video then, that is another bug => pls capture screenshot
Sorry I dont really understand the reason, it is better to give us a video. My app also is used in many phones and many cameras but I dont see many problems with video quality.
same problem i have https://drive.google.com/file/d/1TVjQUHuTqXqg9iIAnmvXtwFsvvqTgoKU/view?usp=sharing
- try another phone
- try another camera => give conclusion: problem caused by camera or phone. I think it is because of camera.
Then, use camera Helper to adjust camera encoder setting (codec, camera resolution such as VGA, HD, ...) => you might see which case can give good video. => you try more tests to analyze
@quocnhat7 it is related to because of high resolution camera? i am using samsung 9 plus with 1080p camera and right now resolution is default resolution 640*480
When using lib external camera, you needs to open camera. Default lib will open with VGA (640x480). You can ask camera open with another size such as HD, FHD by using mUVCCameraHellper.setDefaultPreviewSize(1280, 720); => pls also try to:
- get supported preview sizes of camera (you can dig into the UVCCameraHelper.java class to find it)
- try to open camera with any size there to see which size might be ok to use.
Those comments are for testing, I am not sure what your problem is (the gray video). You should analyze the issue by testings.
"Default lib will open with VGA (640x480)." => a faster way: pls open UVCCameraHelper.java, find variable previewWidth, previewHeight and change it to another number. Such as 1920x1080, 1280x720, 960x640, 640x360, 352x288, ...
right now i m testing on default VGA (640x480) with i have 3 camera 480p ,720p and 1080p issue occur only in 1080p camera will test according to your guide.
i have one more question if really help me than it s good for me i am doing streaming to youtube ,fb using this project it work well but in samsung 9 plus(Android 10) with 1080p camera audio recording stop can you guide me to overcome this??this issue only occur when app in go to background
so that mean when go to background in android 10 audio record any problem??
You can add callback into audio recorder to get exact error code, then trace the reason on google. Perhaps android10 disallow to record in background, maybe. Or after some minutes, Doze mode of phone will disallow app use system resource such as microphone , ... => check error code to confirm this.
https://gist.github.com/Venryx/e1f772b4c05b2da08e118ccd5cc162ff You can ggle some samples such as this.
Gray Video Effect is mocking from Days . Cant fix it . Did everything mentioned
Please someone help
mCameraHelper = UVCCameraHelper.getInstance() mCameraHelper?.setDefaultPreviewSize(1024, 768) mCameraHelper?.setDefaultFrameFormat(UVCCameraHelper.FRAME_FORMAT_MJPEG) mCameraHelper?.initUSBMonitor(this, mUVCCameraView, listener) mCameraHelper?.updateResolution(1024, 768)
@Has yuo got rid from grey line???????
NO. Only when Frame format Changed to YUYV . But i need MJPEG
@quocnhat7 in some phone video recording video is blue/violent i can confirm this because of your video encoder can you change so it can work in all mobile??
@RayCaiNZ
mCameraHelper = UVCCameraHelper.getInstance(); mCameraHelper.setDefaultFrameFormat(UVCCameraHelper.FRAME_FORMAT_YUYV); this will fix
@RayCaiNZ i know you we both meet in upwork please msg me so we can work together or at least tell me soution that i can increase project optimization. some time in dual camera it attach-detach automically please solve me this
@RayCaiNZ
mCameraHelper = UVCCameraHelper.getInstance(); mCameraHelper.setDefaultFrameFormat(UVCCameraHelper.FRAME_FORMAT_YUYV); this will fix
are you able to capture pics ?
