Question Android crash when VideoPlayer. stop() is executed

I created a simple android video player application in unity2021.3.12. It played in URL mode. At first, everything was normal. But whenever I executed VideoPlayer When Stop(), the application always crashes, and the exception capture cannot catch stop(). However, if I use Unity2020.3.4 to export and run again, everything is normal and stop () performs well. What is the reason for this, or what needs to be done to stop normally when I use 2021.3.12?

 

This is Log in Android Studio when Crashes

Code (CSharp):

1. 15:39:50.814  E  FATAL EXCEPTION: UnityMain
2.                  Process: com.DefaultCompany.NewUnityProject, PID: 22291
3.                  java.lang.Error: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
4.                  Version '2021.3.12f1c2 (ffeb050254a0)', Build type 'Development', Scripting Backend 'il2cpp', CPU 'arm64-v8a'
5.                  Build fingerprint: 'HUAWEI/NOH-AN00/HWNOH:10/HUAWEINOH-AN00/102.0.0.280C00:user/release-keys'
6.                  Revision: '0'
7.                  ABI: 'arm64'
8.                  Timestamp: 2022-11-15 15:39:49+0800
9.                  pid: 22291, tid: 23578, name: Background Job.  >>> com.DefaultCompany.NewUnityProject <<<
10.                  uid: 10745
11.                  signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
12.                  Cause: null pointer dereference
13.                      x0  0000000000000000  x1  00000000000035e6  x2  0000000070cf5c00  x3  0000000000000002
14.                      x4  0000006fc03168f0  x5  0000006fc0316878  x6  0000000000000000  x7  002e00640069006f
15.                      x8  ffffff80ffffffd8  x9  0000006fc0316720  x10 0000006fc0316750  x11 6975e3601bdf8c4d
16.                      x12 0000006fc03167c0  x13 0069007400630065  x14 0000000000000000  x15 0000000000000000
17.                      x16 00000070d96e8240  x17 00000070dbc27d60  x18 0000006ec89e0000  x19 0000006fc0317020
18.                      x20 0000006fc0316878  x21 0000006fc03168f0  x22 000000704618e0a0  x23 0000000000000002
19.                      x24 0000000000000000  x25 00000070d812ff10  x26 0000000000000000  x27 0000006e559ffa00
20.                      x28 0000006fc0317020  x29 0000006fc03167b0
21.                      sp  0000006fc0316690  lr  00000070d96048ac  pc  00000070d9580030
22.                
23.                  backtrace:
24.                        #00 pc 0000000000116030  /system/lib64/libandroid_runtime.so (BuildId: e99b2e2e44982c12a4dc2e20fbdbab43)
25.                        #01 pc 000000000019a8a8  /system/lib64/libandroid_runtime.so (BuildId: e99b2e2e44982c12a4dc2e20fbdbab43)
26.                        #02 pc 00000000000587a8  /system/lib64/libbinder.so (android::BBinder::transact(unsigned int, android::Parcel const&, android::Parcel*, unsigned int)+136) (BuildId: 5a8d1089356748819d9494d2f5f1a6bc)
27.                        #03 pc 000000000004c248  /system/lib64/libmedia.so (BuildId: a5fb2fe9293e08ae66f184e85492ba2b)
28.                        #04 pc 000000000015386c  /system/lib64/libstagefright.so (android::ClearMediaHTTP::disconnect()+120) (BuildId: 5a4b48048e1e8b9b7353781c2d32daf0)
29.                        #05 pc 000000000015a8f4  /system/lib64/libstagefright.so (android::NuMediaExtractor::~NuMediaExtractor()+560) (BuildId: 5a4b48048e1e8b9b7353781c2d32daf0)
30.                        #06 pc 000000000015aa84  /system/lib64/libstagefright.so (android::NuMediaExtractor::~NuMediaExtractor()+16) (BuildId: 5a4b48048e1e8b9b7353781c2d32daf0)
31.                        #07 pc 000000000000f6e0  /system/lib64/libutils.so (android::RefBase::decStrong(void const*) const+112) (BuildId: d5e46e511fe7f84584dfbf4942e8ac28)
32.                        #08 pc 000000000001ca3c  /system/lib64/libmediandk.so (BuildId: 0d818036e6ffc84aebc9fc15b84ac170)
33.                        #09 pc 0000000000683d8c  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (AndroidVideoMedia<AndroidMediaNDK::Traits>::ThreadedCleanup()+76) (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
34.                        #10 pc 0000000000630370  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
35.                        #11 pc 000000000025a550  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (JobQueue::Exec(JobInfo*, long long, int, bool)+104) (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
36.                        #12 pc 000000000025a880  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (JobQueue::ExecuteJobFromHighPriorityStack(bool)+64) (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
37.                        #13 pc 000000000025aabc  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)+244) (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
38.                        #14 pc 0000000000259ef4  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (JobQueue::WorkLoop(void*)+264) (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
39. 15:39:50.815  E        #15 pc 000000000037e018  /data/app/com.DefaultCompany.NewUnityProject-CF2a5wKHwMyAFz_Je-BoNw==/lib/arm64/libunity.so (Thread::RunThreadWrapper(void*)+796) (BuildId: 8a868e4da224b6ab33c604054b12818128870df5)
40.                        #16 pc 00000000000cf7c0  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+36) (BuildId: b91c775ccc9b0556e91bc575a2511cd0)
41.                        #17 pc 00000000000721a8  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64) (BuildId: b91c775ccc9b0556e91bc575a2511cd0)
42.                
43.                      at libandroid_runtime.0x116030(Native Method)
44.                      at libandroid_runtime.0x19a8a8(Native Method)
45.                      at libbinder.android::BBinder::transact(unsigned int, android::Parcel const&, android::Parcel*, unsigned int)(transact:136)
46.                      at libmedia.0x4c248(Native Method)
47.                      at libstagefright.android::ClearMediaHTTP::disconnect()(disconnect:120)
48.                      at libstagefright.android::NuMediaExtractor::~NuMediaExtractor()(~NuMediaExtractor:560)
49.                      at libstagefright.android::NuMediaExtractor::~NuMediaExtractor()(~NuMediaExtractor:16)
50.                      at libutils.android::RefBase::decStrong(void const*) const(decStrong:112)
51.                      at libmediandk.0x1ca3c(Native Method)
52.                      at libunity.AndroidVideoMedia<AndroidMediaNDK::Traits>::ThreadedCleanup()(ThreadedCleanup:76)
53.                      at libunity.0x630370(Native Method)
54.                      at libunity.JobQueue::Exec(JobInfo*, long long, int, bool)(Exec:104)
55.                      at libunity.JobQueue::ExecuteJobFromHighPriorityStack(bool)(ExecuteJobFromHighPriorityStack:64)
56.                      at libunity.JobQueue::ProcessJobs(JobQueue::ThreadInfo*, void*)(ProcessJobs:244)
57.                      at libunity.JobQueue::WorkLoop(void*)(WorkLoop:264)
58.                      at libunity.Thread::RunThreadWrapper(void*)(RunThreadWrapper:796)
59.                      at libc.__pthread_start(void*)(__pthread_start:36)
60.                      at libc.__start_thread(__start_thread:64)

 

Just upgrade your Unity to 2022.1.23f1
Unity 2021 series has that bug that’s crashes apk on start or in between functions… Save yourself the stress

 

Any other progress?
Has it been fixed?

 

I also encountered the same bug , my phone's android is using API 31 .

 

Apk crash on start fix!
Delete all android resolved library
It will work
But I highly recommend you should delete the libraries little by little till you have a playable apk
The crash is as a result of duplicate aar and plugins which Unity ignores on build

 

2021.3.13f1 crashes on videoPlayer.Stop() in Android too. Will upgrade to the latest LTS in hopes the bug is fixed there. Will report back here.

 

Nope, 2021.3.16f1 (current LTS) still has the bug. A shame.

 

https://unity3d.atlassian.net/servicedesk/customer/portal/2/IN-25772 I also sent a bug report.
This is a project https://github.com/Biganto/TestVideo

 

In my test project I use only XR Interaction Toolkit, XR Plugin Manager and Open XR. Crashes start after installing these plugins.

 

Android crash when VideoPlayer. stop() is executed . I am also facing the same issue in 2021.3.16f1. This doesn't happen in Editor but on Android it does.

Minimum API level 24
Target API Level 29/31

Tried Unity 2022.2.0f1 : It didn't crash for a couple of builds but then all builds started crashing on VideoPlayer.stop()

 

Happens to me as well... Is there a workaround? Video playback is simply broken on the 2021.3 LTS release?

 

same bug , same stack trace on android emulator

 

Same bug and problem for me too... :/

 

Response from the Unity QA team: "We actually know about this issue and you can check the status here: https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-20661 There are fixes Under Consideration for 2021.3, 2022.2, 2023.1 Streams Please reach out to me if I can answer any questions or be of further help."

 

Crashing for me on Android after updating from 2020.3.32 to 2020.3.43, which I thought would be safe.
Crash happens when calling player.Stop() on a VideoPlayer with a url source. Destroying the GameObject with the VideoPlayer also crashes. Pause() seems to behave but user cannot get past the video without crashing.

Any known workarounds?

 

2021.3.16f1 is too, video player scene -> move other scene after crash or set video player Stop() (null pointer, android, !!! only url used !!!)
[use macbook pro m1, ventura 13.0, unity 2021.3.16f1, il2cpp build, target api 33]

 

Thanks for the note. Downgrading to 2020.3.42f1 indeed fixed the crash. Perhaps there should be a known issue listed for this in .43 release notes - would have saved some effort here.

 

Update - while downgrading my test project fixed the crash, downgrading our actual production project created 999+ Package Manager errors every time the project loads or when hitting play.

@The_Island have you ever seen this before? I've never downgraded Unity versions before. Already tried deleting the project Library folder and reimporting - did not help. I'm not finding much help for these errors elsewhere in the forums. Any ideas would be appreciated. The .md and .cs files sure look ok to me on disk though they are not XML files.

 

Lost whole day on this one thought it was my problem with video steaming

 

It is still crashing in 2022.2.5 but I found a workaround which is to pause the video and give some time before calling Stop(). It is not great but it unblocked me for now until this is fix in 2022 version (ref: bug).

Code (CSharp):

1.        
2.         public void Stop()
3.         {
4.             Timing.RunCoroutine(StopRoutine());
5.         }
6.         private IEnumerator<float> StopRoutine()
7.         {
8.             _videoPlayer.Pause();
9.             _videoPlayer.frame = 0;
10.             _videoPlayer.url = "";
11.             yield return Timing.WaitForSeconds(1f);
12.             _videoPlayer.Stop();
13.         }
14.  
15.  

 

this workaround does not work in 2021.3.17

 

@The_Island can you please put this in release notes of Unity 2021.3.18 "Known Issues" section? Lesson learned Unity... lesson learned!

 

Problem still on unity version 2021.3.18f1

 

Is this issue fixed in 2022.2.7f1? We are currently getting the same crash

 

@The_Island This issue is affecting 2022.2.7f1 and 2022.2.9f1 also. When could we expect a fix? Thanks

 

@The_Island we also still see the bug on 2021.3.19f1 which is supposed to include a fix.

 

Is there an ETA of when 2021.3.21f1 is going to be available for download?

 

same error in 2021.3.15f1

 

Thanks for the info. I want people with 2021.3.15 to know about this issue.

 

I'm not sure that's a safe workaround. I am on Unity 2019.4.40 and facing the exact same issue.

 

Alright, I see. I found a workaround though. I created a Coroutine instead of stopping the video immediately. In the Coroutine, I pause the video first, for a few seconds, then yield return waitfor....for a less than a second, before Stopping the video. This Stopped the crashing, on Android.

What about iap for Android? Is IAP definitely unsupported for older versions of Unity (last time I checked, trying to import the IAP package (the minimum version supported for the Google Play Store) in a version of Unity older than 2020 results the project breaking completely. Any fixes for those of us on older versions of Unity?