How to: test GStreamer-droid based camera support in Ubuntu Touch (for Halium 7.1 based port)



  • @peat_psuwit said in How to: test GStreamer-droid based camera support in Ubuntu Touch (for Halium 7.1 based port):

    ps ax -H

    The device is LG V20 tmo h918 based on halium-7.1 and i used stock kernel for nogat 7.0
    ps ax -H : https://paste.ubuntu.com/p/bF2t6MgwQZ/
    Also i added camera_service in init.qcom.rc to force start media record
    service camera_service /system/bin/camera_service
    class main
    user media
    group audio camera

    This is error in logcat
    https://paste.ubuntu.com/p/7rdQg83CbP/



  • @walidham Could you please try without camera_service? camera_service comes from libhybris and contains some camera services. However, they're designed for 4.4 devices. The way gstreamer-droid works should not require this service anymore.

    Not to be confused with cameraserver. cameraserver is an Android service which splits from mediaserver starting from 7.0 and is required for camera to work.



  • @peat_psuwit Thankyou very much for your reply
    First note is camera.msm8996 driver can't load without added libjnigraphics.so, libandroid-runtime.so and 17 others blobs files. I extracted them from cm-14.1 rom and added it to my system.img to make driver HAL camera happy and load.
    I tried remove dependencies with patchelf but not work (got methods unknown errors).

    Second note :i tested camera with gst-inspect-1.0 got this error

    **
    ERROR:gstamchybris.c:1286:scan_codecs: code should not be reached
    **
    ERROR:gstamchybris.c:1286:scan_codecs: code should not be reached
    No such element or plugin 'androidmedia'
    

    With droidmedia logcat show me this

    ServiceManager: add_service('SurfaceFlinger',9) uid=1000 - ALREADY REGISTERED, OVERRIDE
    ServiceManager: service 'SurfaceFlinger' died
    ServiceManager: add_service('media.player',10) uid=1013 - ALREADY REGISTERED, OVERRIDE
    ServiceManager: service 'media.player' died
    

    Thats why i used old camera_service with no hope to make video record work.



  • @peat_psuwit sorry to bother, but could you maybe provide an arm64 version of the updated camera app? or provide the source code so i can compile it myself?



  • @walidham said in How to: test GStreamer-droid based camera support in Ubuntu Touch (for Halium 7.1 based port):

    First note is camera.msm8996 driver can't load without added libjnigraphics.so, libandroid-runtime.so and 17 others blobs files. I extracted them from cm-14.1 rom and added it to my system.img to make driver HAL camera happy and load.
    I tried remove dependencies with patchelf but not work (got methods unknown errors).

    Notice that libandroid-runtime.so = ART i.e. the Java language runtime. It's unusual for a HAL library to link into it. What method does it say is missing when you tried patchelf it (and what library do you patchelf out)?

    Second note :i tested camera with gst-inspect-1.0 got this error

    **
    ERROR:gstamchybris.c:1286:scan_codecs: code should not be reached
    **
    ERROR:gstamchybris.c:1286:scan_codecs: code should not be reached
    No such element or plugin 'androidmedia'
    

    How did you test camera with gst-inspect-1.0? Do you mean gst-launch-1.0? Also, that error doesn't come from gst-droid.

    With droidmedia logcat show me this

    ServiceManager: add_service('SurfaceFlinger',9) uid=1000 - ALREADY REGISTERED, OVERRIDE
    ServiceManager: service 'SurfaceFlinger' died
    ServiceManager: add_service('media.player',10) uid=1013 - ALREADY REGISTERED, OVERRIDE
    ServiceManager: service 'media.player' died
    

    Did you also add minimediaservice and minisfservice? It seems like minisfservice conflicts with built in minisf in Mir and minimediaservice conflicts with normal mediaserver. Please remove both of them. If not, then what do you mean by "with droidmedia"?



  • @ComLarsic I've updated the instruction to include the arm64 binary and the link to my modification. Thank you for raising that up!



  • I tried following the steps but the camera doesnt work anymore, i tried undo-ing all the commands but still no luck. is thereany way to bring it back go normal or would i have to reinstall UBTouch?



  • @peat_psuwit
    i'm tried to remove the dependcies i ran this command

     patchelf --remove-needed "libjnigraphics.so" vendor/lge/v20-common/proprietary/lib/libfilm_emulation.so
    

    got this error

    E HAL     : dlopen failed: cannot locate symbol "android_getCpuFeatures" referenced by "/system/lib/libbwfocuspeaking.so"...
    

    This method android_getCpuFeatures i think its part from android NDK
    Edit : i found it in libskia.so extracted from stock rom

    nm -D libskia.so |grep android_getCpuFeatures
    002ffca8 T android_getCpuFeatures
    


  • @ComLarsic It's hard to revert changes made by lxc-android-config, one of the packages updated. It's cleaner to just re-install Ubuntu Touch. You can do that by using the UBports Installer or by running sudo system-image-cli -b 0 --progress dots from an ADB or SSH session (not in the terminal app though).

    What device are you testing with?



  • @walidham Hmm, according to my research, android_getCpuFeatures is supposed to be compiled into the binary using it. If you can make it link to libskia.so (which seems to be available on normal Halium installation), then it might work. Also, seem like you'll have to remove libandroid.so too.



  • @peat_psuwit
    Yes, android_getCpuFeatures i fount it builded in halium (libskia.so)
    and i added libskia.so to libbwfocuspeaking.so

    patchelf --add-needed "libskia.so" lib/libbwfocuspeaking.so
    

    Also i updated camera libs , got camera work.
    BUTTT
    Make photo work , not very good, but i can take photo.
    Video record no. I will investigate it more and return to you for HELLP
    Best Regards and thankouy



  • @peat_psuwit i am testing with the oneplus3t, i guess i'll have to reinstall then.
    thanks for the help!



  • I removed both minimediaservice & miniafservice, camera don't work, got "Camera service not found", but the driver is loaded correctly and system detect 3 cameras.

    I think there is problem in sensor or sound, because got many errors in logcat.
    Also why /data/misc/media is empty, there is no media_codecs_profiling_results.xml.



  • Fixes video recording on garlic ,halium-7.1 with/without minimedia, miniaf and minisf services. For initial few shots from front camera were purple .



  • @pbt100 interesting, does your device have a delayed wake from sleep as a result of no mediaservice? Somewhere along the line an update broke video recording on my device



  • @tigerpro minimediaservice was the last thing i added to the port to only fix wake lag and it broke bluetooth ,on mine, video recorder working with/without it though



  • Tested on FP2 -> works like a charm.
    The execution of taking a photo is superfast now, compared to legacy-image. :+1:
    Rear-camera and capturing videos does work too.



  • @pbt100 @tigerpro The wake lag without minimediaservice should be fixed by including this commit into your Halium tree: https://github.com/Halium/android_frameworks_native/pull/6 (And if it works please add some voice to the PR. Thanks!)

    @Luksus You've compiled Halium-7.1 image yourself? Also, is it with the old or new camera modules? I don't have new camera modules myself, so I would like to know how that works.



  • @peat_psuwit : yes I compiled it myself.
    It is with the new camera module, I don't have the older one.
    There is no HDR function as it used to be with the legacy-port, but I assume its just not implemented?!

    So far, the camera-experience is way better, than with the legacy-port.



  • @Luksus I dont know of thats necessarily the case as the camera app on my note 4 has HDR available, I typically dont use it though


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