Crash on setting manual settings

I am seeing a new crash when attempting to set the manual settings for my camera.

I am also unable to pull the latest commit because of an invalid path, it looks like there is a file ending with "." instead of ".jpeg"

I am doing the following:

• Plug in camera and open the app (Permissions already allowed)
• Click SET UP THE CAMERA DEVICE
• Click FIND THE CAMERA (successful)
• Click LIST UP THE CAMERA (successful)
• Click SET UP WITH UVC SETTINGS
• Click MANUAL on dialog box
  App Crash

Here is the logcat from where the crash occurs (removed timestamps for readability):

from_LibUVC             humer.uvc_camera                     D  _prepare_stream_ctrl sucessfully
from_LibUVC             humer.uvc_camera                     E  _uvc_get_stream_ctrl_format failed
from_LibUVC             humer.uvc_camera                     D  _uvc_get_stream_ctrl_format failed: -51
From libuvc_support     humer.uvc_camera                     E  could not negotiate with camera:err=-51
 From UVCPreviw          humer.uvc_camera                     D  end (-51)
libc                    humer.uvc_camera                     A  Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x42bbcf9842bbcf98 in tid 28752 (umer.uvc_camera), pid 28696 (umer.uvc_camera)
WindowManager           system_server                        E  win=Window{4a45d90 u0 humer.uvc_camera/humer.UvcCamera.SetUpTheUsbDeviceUvc EXITING} destroySurfaces: appStopped=false cleanupOnResume=false win.mWindowRemovalAllowed=true win.mRemoveOnExit=true win.mViewVisibility=0 caller=com.android.server.wm.WindowState.onExitAnimationDone:5997 com.android.server.wm.WindowStateAnimator.onAnimationFinished:225 com.android.server.wm.WindowState.onAnimationFinished:6222 com.android.server.wm.WindowContainer$$ExternalSyntheticLambda4.onAnimationFinished:2 com.android.server.wm.SurfaceAnimator.lambda$getFinishedCallback$0:140 com.android.server.wm.SurfaceAnimator.$r8$lambda$lRxTVOJy8fX752UbrFno9INW9hE:0 com.android.server.wm.SurfaceAnimator$$ExternalSyntheticLambda1.run:8 
DEBUG                   crash_dump64                         A  Cmdline: humer.uvc_camera
DEBUG                   crash_dump64                         A  pid: 28696, tid: 28752, name: umer.uvc_camera  >>> humer.uvc_camera <<<
DEBUG                   crash_dump64                         A        #05 pc 000000000001b48c  /data/app/~~<removed>==/humer.uvc_camera-px-<removed>==/lib/arm64/libuvc_preview.so (UVCPreview::preview_thread_func(void*)+200) (BuildId: <removed>)

[Peter-St]

Hi ben,

I'm currently updating the automatic method of the app and made a mistake in the code. I just fixed it and you can give em another try.
You can try out the new auto method also, if you want.

Because of the pull, there shouldn't be any errors so far. If there is an error again, can u plz attach any log to this. Thx

Hi Peter,

Thank you for the quick response!

I am still getting an error when I try to pull the latest commits, here is the error (using SourceTree git client):
error: invalid path 'fastlane/metadata/android/de-DE/images/featureGraphic.' <-- missing "jpeg" in file name

[Peter-St]

Hi and thx for the hint.
Indeed there was the jpeg missing.
Give em another try 🙂

I was able to pull the latest commit, and the crash has been fixed!

I do notice however that the only available frame rate option is 15 fps, when really my UVC camera supports 30 fps.
When I switch to use the "USB Alternative Driver" and go through the same flow I am able to see 30 fps as expected.

I tried the automatic method as well and it doesn't work for me, here is my log from after clicking AUTOMATIC :

setSurface called with nullptr
setSurface() destroyed EGLSurface
destroyEglSurface
[ViewRootImpl@5c51253[SetUpTheUsbDeviceUvc]#3(BLAST Consumer)3](id:1fd300000003,api:1,p:8147,c:8147) disconnect: api 1
dispatchDetachedFromWindow
[ViewRootImpl@5c51253[SetUpTheUsbDeviceUvc]#3](f:0,a:1) destructor()
[ViewRootImpl@5c51253[SetUpTheUsbDeviceUvc]#3(BLAST Consumer)3](id:1fd300000003,api:0,p:-1,c:8147) disconnect
Input channel destroyed: 'd8558f7', fd=143
set:488 set: Unset optional value from type SMPTE2086
set:488 set: Unset optional value from type CTA861_3
onStateChanged: InsetsState: {mDisplayFrame=Rect(0, 0 - 720, 1600), mDisplayCutout=DisplayCutout{insets=Rect(0, 45 - 0, 0) waterfall=Insets{left=0, top=0, right=0, bottom=0} boundingRect={Bounds=[Rect(0, 0 - 0, 0), Rect(272, 0 - 448, 45), Rect(0, 0 - 0, 0), Rect(0, 0 - 0, 0)]} cutoutPathParserInfo={CutoutPathParserInfo{displayWidth=720 displayHeight=1600 physicalDisplayWidth=720 physicalDisplayHeight=1600 density={1.875} cutoutSpec={M 0,0 H -88 V 45 H 88 V 0 H 0 Z} rotation={0} scale={1.0} physicalPixelDisplaySizeRatio={1.0}}}}, mRoundedCorners=RoundedCorners{[RoundedCorner{position=TopLeft, radius=60, center=Point(60, 60)}, RoundedCorner{position=TopRight, radius=60, center=Point(660, 60)}, RoundedCorner{position=BottomRight, radius=60, center=Point(660, 1540)}, RoundedCorner{position=BottomLeft, radius=60, center=Point(60, 1540)}]}  mRoundedCornerFrame=Rect(0, 0 - 720, 1600), mPrivacyIndicatorBounds=PrivacyIndicatorBounds {static bounds=Rect(637, 0 - 720, 45) rotation=0}, mSources= { InsetsSource: {mType=ITYPE_STATUS_BAR, mFrame=[0,0][720,45], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_NAVIGATION_BAR, mFrame=[0,1510][720,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_LEFT_GESTURES, mFrame=[0,0][0,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_RIGHT_GESTURES, mFrame=[720,0][720,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_TOP_MANDATORY_GESTURES, mFrame=[0,0][720,68], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_BOTTOM_MANDATORY_GESTURES, mFrame=[0,1510][720,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_LEFT_DISPLAY_CUTOUT, mFrame=[0,0][-100000,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_TOP_DISPLAY_CUTOUT, mFrame=[0,0][720,45], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_RIGHT_DISPLAY_CUTOUT, mFrame=[100000,0][720,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_BOTTOM_DISPLAY_CUTOUT, mFrame=[0,100000][720,1600], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_TOP_TAPPABLE_ELEMENT, mFrame=[0,0][720,45], mVisible=true, mInsetsRoundedCornerFrame=false}, InsetsSource: {mType=ITYPE_BOTTOM_TAPPABLE_ELEMENT, mFrame=[0,1510][720,1600], mVisible=true, mInsetsRoundedCornerFrame=false} } host=humer.uvc_camera/humer.UvcCamera.SetUpTheUsbDeviceUvc from=android.view.ViewRootImpl$ViewRootHandler.handleMessageImpl:6740
begin
end
start preview automatic
begin
end (0)
begin
startPreview
test = -1
check test
preview_thread Test Mode
startPreview finished
end (0)
begin
format->guidFormat = -568153634
uvc_frame_format cf = 3
guid does not match
claiming interface 1
Interface sucessfully claimed
uvc_query_stream_ctrl
before the CTL
Control Transfer Sucessful
uvc_query_stream_ctrl
before the CTL
Control Transfer Sucessful
uvc_query_stream_ctrl
before the CTL
Control Transfer Sucessful
uvc_query_stream_ctrl
before the CTL
set:488 set: Unset optional value from type SMPTE2086
Control Transfer Sucessful
uvc_query_stream_ctrl
set:488 set: Unset optional value from type CTA861_3
before the CTL
Control Transfer Sucessful
uvc_query_stream_ctrl
before the CTL
Control Transfer Sucessful
_prepare_stream_ctrl sucessfully
_uvc_get_stream_ctrl_format failed
_uvc_get_stream_ctrl_format failed: -51
could not negotiate with camera:err=-51
end (-51)
The FrameFormat is == == == (null)
ctrl.bFormatIndex = 1
ctrl.bInterfaceNumber = 1
ctrl.dwFrameInterval = 666666
ctrl.bFrameIndex = 1
end
The imageWidth is 0
The FrameFormat is (null)
camera_pointer->imageWidth = 0
camera_pointer->frameFormat = (null)
preview automatic complete
The FrameFormat is (null)
camera.activeUrbs = 0
camera.packetsPerRequest = 0
camera.maxPacketSize = 0
camera.imageWidth = 0
camera.imageHeight = 0
camera.camFrameInterval = 666666
camera.frameFormat = null

[Peter-St]

ok, I don't know, why the program not detects the 30 fps. In your log a camFrameInterval = 666666 is detectet, which is equal to 15 FPS. I think it's a camera specific issue. Best solution will be to set it manual to 333333 with the edit Button and save these settings. Plz report if it works then :)

Second thing is the auto method. The method is in beta for now and will be getting better in Time. I noticed, that the method is close to work even with your cam, although there is an error in _uvc_get_stream_ctrl_format in the LibUvc library. I will try to fix this, but it will take some time.

When I go through the manual settings and then edit/save the Frame_Interval as 333333, it appears to be correct for the control transfer but then there are still only ~70 frames captured in 5 seconds which is roughly close to 15fps.

Screenshots

[Peter-St]

Hi,

strange that the uvc driver is not detecting the frame interval the right way.

Concerning to the camera, just as i thought, it worked.
I think your frame format is MJPEG. The frames from your camera should have a size of 2,88 MB (output of the ControlTransfer). The frames you receive have a size of ~50 KB.
I think the issue of the frame interval is camera spezific. I faced this too with some cheap MJPEG cams.

Plz try the 666666 value also and look at the frames there. Note that sometimes the output of the frames differs also from time to time. Try to set a lower framerate also and look at the output again (if possible).