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

tigerpro

I tried this patch on the Galaxy Note 4, works very well, even with flash, video however doesnt play back but I believe that is a mediahub or contenthub issue. I wanted to ask if there was a plan to get this merged into the halium repos or do we have to merge this patch intou our specific device repos? if we have to merge it to our device, what would be the best way to do so?

ernest

Hello,
I lost the camera access, see log : https://paste.ubuntu.com/p/q549BYtZ9C/

Seems that it doesn't find the device and display multicolor squared image. I'm running a OP3 on edge which has a camera working.

peat_psuwit

@walidham Which device are you working on and based on Halium 5.1 or 7.1? IIRC, android.media.IMediaRecorderFactory is something I've seen only in Halium 5.1 port by Canonical's custom patch. In case I recalled it wrong, could you also share the result of ps ax -H too?

@ernest Could you please follow the instruction in "How to debug" and share the result with me? It will produce more debug information that could be useful for me.

walidham

@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/

peat_psuwit

@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.

walidham

@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.

ComLarsic

@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?

peat_psuwit

@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"?

peat_psuwit

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

ComLarsic

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?

walidham

@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

peat_psuwit

@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?

peat_psuwit

@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.

walidham

@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

ComLarsic

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

walidham

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.

pbt100

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

tigerpro

@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

pbt100

@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

Luksus

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