Why do the types of cameras that can be obtained differ depending on the device as shown below?
In both cases, characteristics.get(CameraCharacteristics.LENS_FACING) obtained from CameraManager is LENS_FACING_EXTERNAL.
AndroidTV11
Name ：Front Camera
Type：0
AndroidTV14
Name ：External Camera
Type：２
AndroidTV11 does not allow switching between multiple connected USB camera devices.
Even if I plug in and unplug the USB before the meeting starts, the list that can be obtained with getCameraDeviceList is not updated.
When will the list that can be obtained with this API be updated?
Is there any update on this?
Is there any update on this?
Is there any update on this?
Is there any update on this?
Is there any update on this?
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Hello akio and @skz ,
I believe that the SDK uses the Android default camera enumeration system. In other apps when you call this API, do you get different results when you plug and unplug USB devices?
Thank you for your patience,
Richard
Call this API in other app, successfully obtain the camera list.
Also, unplug and plug in the USB device, the camera list will change to External Camera (Type:2), but the video from the built-in camera will be output.
If the External Camera is inserted before launching the app, the External Camera will be selected and the video from the External Camera will be output.
Is there any update on this?
Hello skz,
The Zoom Android Meeting SDK selects the system default camera as the video output if the user does not switch the camera. So, what might be happening is that the default camera for the device is the external one when it is plugged in.
Also, unplug and plug in the USB device, the camera list will change to External Camera (Type:2), but the video from the built-in camera will be output.
Do other apps also treat the built-in camera as the output? Because if so, perhaps that is the device default at the time.
Thank you for your patience,
Richard
The information has been corrected.
Plug and unplug the USB camera after the Android system has started but before the app is launched, the system will switch to the external camera (type 2), but the video from the built-in camera will be output.
Plug and unplug the USB camera before the Android system is started, the external camera will be selected and the video from the External Camera will be output.
Is there any update on this?
When I checked the actual operation, it seems to be updated by initializing the SDK.
Is there a way to update the camera list without initializing the SDK?
Is there any update on this?
Is there any update on this?
Additionally, on certain Android TV 14 devices, when joining a meeting after plugging or unplugging a USB camera, JoinByURLActivity results in an ANR.
Please investigate the cause.
ActivityManager system_server E ANR in AppName (AppName/com.zipow.videobox.JoinByURLActivity) PID: 6999 Reason: Input dispatching timed out (Application does not have a focused window) Parent: AppName/com.zipow.videobox.JoinByURLActivity ErrorId: 68e40028-dcee-4a80-8ba6-e2336eba82e0 Frozen: false Load: 57.15 / 56.31 / 44.39 ----- Output from /proc/pressure/memory ----- some avg10=2.47 avg60=1.20 avg300=0.75 total=31395812 full avg10=0.75 avg60=0.38 avg300=0.24 total=8547275 ----- End output from /proc/pressure/memory ----- ----- Output from /proc/pressure/cpu ----- some avg10=20.22 avg60=14.22 avg300=11.23 total=231017004 full avg10=0.00 avg60=0.00 avg300=0.00 total=0 ----- End output from /proc/pressure/cpu ----- ----- Output from /proc/pressure/io ----- some avg10=4.25 avg60=1.94 avg300=0.96 total=60851010 full avg10=0.12 avg60=0.05 avg300=0.01 total=6551264 ----- End output from /proc/pressure/io ----- CPU usage from 2ms to 5621ms later (2025-09-01 12:02:01.899 to 2025-09-01 12:02:07.518): 84% 670/media.swcodec: 82% user + 1.9% kernel / faults: 97 minor 1 major 54% 6999/AppName: 40% user + 13% kernel / faults: 3441 minor 119 major 39% 564/surfaceflinger: 27% user + 11% kernel / faults: 1388 minor 34% 1091/system_server: 18% user + 15% kernel / faults: 3417 minor 121 major 13% 759/sdmc_bin: 2.8% user + 11% kernel / faults: 214 minor 10% 1589/com.android.systemui: 7.5% user + 2.5% kernel / faults: 2374 minor 129 major 9.6% 1759/com.mediatek.tv.service: 6.9% user + 2.6% kernel / faults: 1771 minor 20 major 9.7% 2190/com.google.android.inputmethod.latin: 7.3% user + 2.3% kernel / faults: 1601 minor 69 major 9.5% 6994/kworker/0:2-events: 0% user + 9.5% kernel 7.1% 497/android.hardware.graphics.composer@2.4-service: 2.5% user + 4.6% kernel / faults: 3 minor 83% TOTAL: 54% user + 24% kernel + 0.1% iowait + 2.7% irq + 0.7% softirq CPU usage from 137ms to 972ms later (2025-09-01 12:02:02.034 to 2025-09-01 12:02:02.869): 77% 670/media.swcodec: 75% user + 1.5% kernel / faults: 31 minor 77% 6770/oid.vp8.encoder: 75% user + 1.5% kernel 123% 6999/AppName: 91% user + 31% kernel / faults: 181 minor 82% 7005/Signal Catcher: 63% user + 18% kernel 25% 7020/RenderThread: 18% user + 6.3% kernel 50% 1091/system_server: 10% user + 40% kernel / faults: 369 minor 10 major 47% 7220/AnrAuxiliaryTas: 8.7% user + 38% kernel 40% 564/surfaceflinger: 24% user + 15% kernel / faults: 181 minor 30% 564/surfaceflinger: 18% user + 11% kernel 2.8% 607/binder:564_2: 1.4% user + 1.4% kernel 2.8% 609/RenderEngine: 0% user + 2.8% kernel 1.4% 923/TimerDispatch: 1.4% user + 0% kernel 1.4% 935/surfaceflinger: 0% user + 1.4% kernel 10% 759/sdmc_bin: 3.1% user + 7.8% kernel / faults: 18 minor 7.8% 836/sdmc_bin: 3.1% user + 4.6% kernel 3.1% 837/sdmc_bin: 1.5% user + 1.5% kernel 7.3% 58/kswapd0: 0% user + 7.3% kernel 6.9% 497/android.hardware.graphics.composer@2.4-service: 1.3% user + 5.5% kernel / faults: 3 minor 4.1% 497/composer@2.4-se: 2.7% user + 1.3% kernel 2.7% 906/graphic_mi_work: 0% user + 2.7% kernel 1.3% 912/hwcVsyncThread: 0% user + 1.3% kernel 9.4% 6994/kworker/0:2-OP1_IRQ_WQ: 0% user + 9.4% kernel 2.5% 190/logd: 0% user + 2.5% kernel / faults: 2 minor 1.2% 207/logd.klogd: 0% user + 1.2% kernel 2.9% 600/adbd: 0% user + 2.9% kernel / faults: 1 minor 1.4% 808/UsbFfs-worker: 0% user + 1.4% kernel 3% 659/media.codec: 1.5% user + 1.5% kernel / faults: 4 minor 1.5% 2499/HwBinder:659_5: 1.5% user + 0% kernel 3% 671/ld-linux.so.3: 1.5% user + 1.5% kernel 1.5% 861/cpu_audio: 1.5% user + 0% kernel 1.2% 14/ksoftirqd/0: 0% user + 1.2% kernel 1.2% 15/rcu_preempt: 0% user + 1.2% kernel 1.2% 32/ksoftirqd/2: 0% user + 1.2% kernel 1.3% 352/kworker/u8:4-adb: 0% user + 1.3% kernel 1.3% 400/irq/207-scaler: 0% user + 1.3% kerne