Kivy OpenCV ip camera stream problem
510 views
Skip to first unread message
Atakan Yüksel
Mar 26, 2022, 3:11:50 PM3/26/22
to Kivy users support
Hi, I have an ip camera that streams at "http://192.168.1.23:81/stream" URL. My code's aim is play that live stream.
My code works on PC perfectly but when try to play that live stream, app goes just a blank white screen (even buttons disappear). And I dont get any log about the problem.
Can you help me to solve the problem please ? Or can you show me there is any other method to play the live stream through IP cam
Everything you need about the code is below.
(Also, in this link: https://github.com/aiakon/abc)
Here is the logs:
03-24 23:11:44.156 11925 12119 I python : Android kivy bootstrap done. __name__ is __main__
03-24 23:11:44.156 11925 12119 I python : AND: Ran string
03-24 23:11:44.156 11925 12119 I python : Run user program, change dir and execute entrypoint
03-24 23:11:44.244 11925 12119 I python : [WARNING] [Config ] Older configuration version detected (0 instead of 21)
03-24 23:11:44.244 11925 12119 I python : [WARNING] [Config ] Upgrading configuration in progress.
03-24 23:11:44.249 11925 12119 I python : [INFO ] [Logger ] Record log in /data/user/0/org.abc.abc/files/app/.kivy/logs/kivy_22-03-24_0.txt
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Kivy ] v2.0.0
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Kivy ] Installed at "/data/user/0/org.abc.abc/files/app/_python_bundle/site-packages/kivy/__init__.pyc"
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Python ] v3.8.9 (default, Mar 22 2022, 23:27:55)
03-24 23:11:44.250 11925 12119 I python : [Clang 8.0.2 (https://android.googlesource.com/toolchain/clang 40173bab62ec7462
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Python ] Interpreter at ""
03-24 23:11:44.935 11925 12119 I python : [INFO ] [Factory ] 186 symbols loaded
03-24 23:11:45.135 11925 12119 I python : [INFO ] [ImageLoaderFFPy] Using ffpyplayer 4.3.2
03-24 23:11:45.136 11925 12119 I python : [INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_ffpyplayer
03-24 23:11:45.358 11925 12119 I python : [INFO ] [Window ] Provider: sdl2
03-24 23:11:45.376 11925 12119 I python : [INFO ] [GL ] Using the "OpenGL ES 2" graphics system
03-24 23:11:45.376 11925 12119 I python : [INFO ] [GL ] Backend used <sdl2>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL version <b'OpenGL ES 3.2 v1.r20p0-01rel0.a41d1d553047de7edc8f79dbe3e575cd'>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL vendor <b'ARM'>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL renderer <b'Mali-G76 MC4'>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL parsed version: 3, 2
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] Texture max size <8192>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] Texture max units <16>
03-24 23:11:45.414 11925 12119 I python : [INFO ] [Window ] auto add sdl2 input provider
03-24 23:11:45.415 11925 12119 I python : [INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
03-24 23:11:45.424 11925 12119 I python : [INFO ] [Text ] Provider: sdl2
03-24 23:11:45.499 11925 12119 I python : [WARNING] [Base ] Unknown <android> provider
03-24 23:11:45.499 11925 12119 I python : [INFO ] [Base ] Start application main loop
03-24 23:11:45.501 11925 12119 I python : [INFO ] [GL ] NPOT texture support is available
03-24 23:11:50.639 11925 12119 I python : 1
03-24 23:11:50.646 11925 12119 I python : 2
I put 1 and 2 to see if code is working but app is not reaches the URL. I can check that because I have a LED that is ON when live streaming URL is busy.
My code works on PC perfectly but when try to play that live stream, app goes just a blank white screen (even buttons disappear). And I dont get any log about the problem.
Can you help me to solve the problem please ? Or can you show me there is any other method to play the live stream through IP cam
Everything you need about the code is below.
(Also, in this link: https://github.com/aiakon/abc)
Here is the logs:
03-24 23:11:44.156 11925 12119 I python : Android kivy bootstrap done. __name__ is __main__
03-24 23:11:44.156 11925 12119 I python : AND: Ran string
03-24 23:11:44.156 11925 12119 I python : Run user program, change dir and execute entrypoint
03-24 23:11:44.244 11925 12119 I python : [WARNING] [Config ] Older configuration version detected (0 instead of 21)
03-24 23:11:44.244 11925 12119 I python : [WARNING] [Config ] Upgrading configuration in progress.
03-24 23:11:44.249 11925 12119 I python : [INFO ] [Logger ] Record log in /data/user/0/org.abc.abc/files/app/.kivy/logs/kivy_22-03-24_0.txt
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Kivy ] v2.0.0
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Kivy ] Installed at "/data/user/0/org.abc.abc/files/app/_python_bundle/site-packages/kivy/__init__.pyc"
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Python ] v3.8.9 (default, Mar 22 2022, 23:27:55)
03-24 23:11:44.250 11925 12119 I python : [Clang 8.0.2 (https://android.googlesource.com/toolchain/clang 40173bab62ec7462
03-24 23:11:44.250 11925 12119 I python : [INFO ] [Python ] Interpreter at ""
03-24 23:11:44.935 11925 12119 I python : [INFO ] [Factory ] 186 symbols loaded
03-24 23:11:45.135 11925 12119 I python : [INFO ] [ImageLoaderFFPy] Using ffpyplayer 4.3.2
03-24 23:11:45.136 11925 12119 I python : [INFO ] [Image ] Providers: img_tex, img_dds, img_sdl2, img_pil, img_ffpyplayer
03-24 23:11:45.358 11925 12119 I python : [INFO ] [Window ] Provider: sdl2
03-24 23:11:45.376 11925 12119 I python : [INFO ] [GL ] Using the "OpenGL ES 2" graphics system
03-24 23:11:45.376 11925 12119 I python : [INFO ] [GL ] Backend used <sdl2>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL version <b'OpenGL ES 3.2 v1.r20p0-01rel0.a41d1d553047de7edc8f79dbe3e575cd'>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL vendor <b'ARM'>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL renderer <b'Mali-G76 MC4'>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] OpenGL parsed version: 3, 2
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] Texture max size <8192>
03-24 23:11:45.377 11925 12119 I python : [INFO ] [GL ] Texture max units <16>
03-24 23:11:45.414 11925 12119 I python : [INFO ] [Window ] auto add sdl2 input provider
03-24 23:11:45.415 11925 12119 I python : [INFO ] [Window ] virtual keyboard not allowed, single mode, not docked
03-24 23:11:45.424 11925 12119 I python : [INFO ] [Text ] Provider: sdl2
03-24 23:11:45.499 11925 12119 I python : [WARNING] [Base ] Unknown <android> provider
03-24 23:11:45.499 11925 12119 I python : [INFO ] [Base ] Start application main loop
03-24 23:11:45.501 11925 12119 I python : [INFO ] [GL ] NPOT texture support is available
03-24 23:11:50.639 11925 12119 I python : 1
03-24 23:11:50.646 11925 12119 I python : 2
I put 1 and 2 to see if code is working but app is not reaches the URL. I can check that because I have a LED that is ON when live streaming URL is busy.
Robert
Mar 26, 2022, 5:54:31 PM3/26/22
to Kivy users support
Unlikely I will have better suggestions than the guys on Discord, but:
Assuming the app has INTERNET permission:
1) Try printing the values returned by the camera, to see if the cv2 code is doing what you think it is doing.
2) Remove the python filter on the logcat output, this will enable you to see if there is an Android error message. This will be very verbose.
Atakan Yüksel
Mar 27, 2022, 4:45:04 AM3/27/22
to Kivy users support
Hi, thanks for suggestions the problem is cv2.VideoCapture is not working on android, i assume. I got this log (below) and it is revelant with cv2.VideoCapture. I thought if i got this error because I am using URL inside of cv2.VideoCapture, so i tried to play mp4 video but I got same error. Can you help me to fix it please ?
03-26 22:17:35.836 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.886 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 3 lines
03-26 22:17:35.903 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.912 780 892 D AAL : 03-26 10:17:35.846 BL=1975,ESS= 256, 03-26 10:17:35.862 BL=1973,ESS= 256, 03-26 10:17:35.879 BL=1971,ESS= 256, 03-26 10:17:35.895 BL=1969,ESS= 256, 03-26 10:17:35.912 BL=1967,ESS= 256,
03-26 22:17:35.919 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.953 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 2 lines
03-26 22:17:35.970 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.978 780 892 D AAL : 03-26 10:17:35.929 BL=1965,ESS= 256, 03-26 10:17:35.945 BL=1963,ESS= 256,
03-26 22:17:35.986 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.103 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 7 lines
03-26 22:17:36.119 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.121 507 17191 I hwcomposer: [HWCDisplay] [Display_0 (type:1)] fps:8.438753,dur:1066.51,max:329.85,min:15.62
03-26 22:17:36.122 566 566 I SurfaceFlinger: screenshot (org.abc.abc/org.kivy.android.PythonActivity#0)
03-26 22:17:36.122 566 566 I SurfaceFlinger: isIncludeStatusBarAndNavBar (1)
03-26 22:17:36.127 1533 1533 D NavBarTintController: onSampleCollected 0.0
03-26 22:17:36.136 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.153 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.162 7982 8028 I python : 1
03-26 22:17:36.163 7982 8028 E cv::error(): OpenCV(4.5.1) Error: Bad argument (CAP_IMAGES: can't find starting number (in the name of file): http://192.168.1.23:81/stream) in icvExtractPattern, file /home/pc/KivyTestt/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/opencv/arm64-v8a__ndk_target_21/opencv/modules/videoio/src/cap_images.cpp, line 253
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1: [ERROR:0] global /home/pc/KivyTestt/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/opencv/arm64-v8a__ndk_target_21/opencv/modules/videoio/src/cap.cpp (142) open VIDEOIO(CV_IMAGES): raised OpenCV exception:
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1:
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1: OpenCV(4.5.1) /home/pc/KivyTestt/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/opencv/arm64-v8a__ndk_target_21/opencv/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): http://192.168.1.23:81/stream in function 'icvExtractPattern'
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1:
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1:
03-26 22:17:36.165 7982 8028 E NativeCodec: failed to stat file: http://192.168.1.23:81/stream (No such file or directory)
03-26 22:17:36.166 7982 8028 I python : 2
03-26 22:17:36.170 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.220 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 3 lines
03-26 22:17:36.236 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.242 566 566 I SurfaceFlinger: screenshot (org.abc.abc/org.kivy.android.PythonActivity#0)
03-26 22:17:36.242 566 566 I SurfaceFlinger: isIncludeStatusBarAndNavBar (1)
03-26 22:17:36.245 1292 1453 E WifiVendorHal: getWifiLinkLayerStats_1_3_Internal(l.927) failed {.code = ERROR_NOT_SUPPORTED, .description = }
03-26 22:17:36.246 1533 1533 D NavBarTintController: onSampleCollected 0.0
03-26 22:17:36.249 1292 1460 D SlaveWifiManager: getWifiSlaveConnectionInfo
03-26 22:17:36.249 1292 1452 D SlaveWifiService: Slave message handler : 155633
03-26 22:17:36.250 1292 1460 D SlaveWifiManager: getWifiSlaveConnectionInfo
03-26 22:17:36.250 1292 1452 D SlaveWifiService: Slave message handler : 155633
03-26 22:17:36.252 1533 1533 D SignalClusterView: updateMobileTypeImage 0
03-26 22:17:36.253 1533 1533 I chatty : uid=1000(system) com.android.systemui identical 1 line
03-26 22:17:36.253 1533 1533 D SignalClusterView: updateMobileTypeImage 0
03-26 22:17:35.836 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.886 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 3 lines
03-26 22:17:35.903 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.912 780 892 D AAL : 03-26 10:17:35.846 BL=1975,ESS= 256, 03-26 10:17:35.862 BL=1973,ESS= 256, 03-26 10:17:35.879 BL=1971,ESS= 256, 03-26 10:17:35.895 BL=1969,ESS= 256, 03-26 10:17:35.912 BL=1967,ESS= 256,
03-26 22:17:35.919 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.953 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 2 lines
03-26 22:17:35.970 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:35.978 780 892 D AAL : 03-26 10:17:35.929 BL=1965,ESS= 256, 03-26 10:17:35.945 BL=1963,ESS= 256,
03-26 22:17:35.986 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.103 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 7 lines
03-26 22:17:36.119 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.121 507 17191 I hwcomposer: [HWCDisplay] [Display_0 (type:1)] fps:8.438753,dur:1066.51,max:329.85,min:15.62
03-26 22:17:36.122 566 566 I SurfaceFlinger: screenshot (org.abc.abc/org.kivy.android.PythonActivity#0)
03-26 22:17:36.122 566 566 I SurfaceFlinger: isIncludeStatusBarAndNavBar (1)
03-26 22:17:36.127 1533 1533 D NavBarTintController: onSampleCollected 0.0
03-26 22:17:36.136 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.153 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.162 7982 8028 I python : 1
03-26 22:17:36.163 7982 8028 E cv::error(): OpenCV(4.5.1) Error: Bad argument (CAP_IMAGES: can't find starting number (in the name of file): http://192.168.1.23:81/stream) in icvExtractPattern, file /home/pc/KivyTestt/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/opencv/arm64-v8a__ndk_target_21/opencv/modules/videoio/src/cap_images.cpp, line 253
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1: [ERROR:0] global /home/pc/KivyTestt/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/opencv/arm64-v8a__ndk_target_21/opencv/modules/videoio/src/cap.cpp (142) open VIDEOIO(CV_IMAGES): raised OpenCV exception:
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1:
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1: OpenCV(4.5.1) /home/pc/KivyTestt/.buildozer/android/platform/build-arm64-v8a_armeabi-v7a/build/other_builds/opencv/arm64-v8a__ndk_target_21/opencv/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): http://192.168.1.23:81/stream in function 'icvExtractPattern'
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1:
03-26 22:17:36.165 7982 8028 E OpenCV/4.5.1:
03-26 22:17:36.165 7982 8028 E NativeCodec: failed to stat file: http://192.168.1.23:81/stream (No such file or directory)
03-26 22:17:36.166 7982 8028 I python : 2
03-26 22:17:36.170 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.220 3497 3497 I chatty : uid=1000(system) com.mi.android.globalminusscreen identical 3 lines
03-26 22:17:36.236 3497 3497 I AssistHolderContentView: forceFitSystemWindows pb = 0
03-26 22:17:36.242 566 566 I SurfaceFlinger: screenshot (org.abc.abc/org.kivy.android.PythonActivity#0)
03-26 22:17:36.242 566 566 I SurfaceFlinger: isIncludeStatusBarAndNavBar (1)
03-26 22:17:36.245 1292 1453 E WifiVendorHal: getWifiLinkLayerStats_1_3_Internal(l.927) failed {.code = ERROR_NOT_SUPPORTED, .description = }
03-26 22:17:36.246 1533 1533 D NavBarTintController: onSampleCollected 0.0
03-26 22:17:36.249 1292 1460 D SlaveWifiManager: getWifiSlaveConnectionInfo
03-26 22:17:36.249 1292 1452 D SlaveWifiService: Slave message handler : 155633
03-26 22:17:36.250 1292 1460 D SlaveWifiManager: getWifiSlaveConnectionInfo
03-26 22:17:36.250 1292 1452 D SlaveWifiService: Slave message handler : 155633
03-26 22:17:36.252 1533 1533 D SignalClusterView: updateMobileTypeImage 0
03-26 22:17:36.253 1533 1533 I chatty : uid=1000(system) com.android.systemui identical 1 line
03-26 22:17:36.253 1533 1533 D SignalClusterView: updateMobileTypeImage 0
27 Mart 2022 Pazar tarihinde saat 00:54:31 UTC+3 itibarıyla Robert şunları yazdı:
Robert
Mar 27, 2022, 1:02:47 PM3/27/22
to Kivy users support
OK so ocv is not working, either because it doesn't work (nothing anybody here could do about that), or because url is not portable (it worked on a pc, right?).
Did you try the obvious stuff like .cgi or rtsp:// ?
Reply all
Reply to author
Forward
0 new messages