[OpenHarmony] AVPro Video's native library (libavprovideolib.so) causes a fatal SIGSEGV crash

[289746647-bot]

Unity version

2020.3.25f1

Unity editor platform

Windows

AVPro Video edition

Trial

AVPro Video version

3.3.6-HarmonyOS NEXT Edition (HarmonyOS NEXT版)

Device hardware

Huawei Mate60 Pro

Which HarmonyOS version are you using?

5.1.0

Unity Graphics API

OpenGLES 3

Texture format

BGRA

Audio output

System Direct

Any other Media Player component configuration required to reproduce the issue.

No response

Which output component(s) are you using?

No response

Any other component configuration required to reproduce the issue.

No response

The issue

AVPro Video's native library (libavprovideolib.so) causes a fatal SIGSEGV crash (NULL pointer dereference) on HarmonyOS NEXT devices when attempting to play video content. The crash occurs during the video player creation/initialization phase. Additionally, the Unity C# layer's internal dlopen calls fail to resolve libavprovideolib.so in the moduleNs_default linker namespace, despite the library being successfully loaded via ArkTS NAPI import at the Ability level.

Media information

No response

Logs

[289746647-bot]

cppcrash-20260408142809.txt
crash log

[Chris-RH]

Can you reproduce this in a new project, running only the AVPro Video demo scenes?
Please could you email the PDF invoice for AVPro Video HarmonyOS Next Edition to unitysupport@renderheads.com

[289746647-bot]

Already sent

[Chris-RH]

Can you reproduce this in a new project, running only the AVPro Video demo scenes?

[289746647-bot]

Bug Report for OpenHarmony (HarmonyOS NEXT) Platform
1、The version of Unity we are using is 2020.3.25f1. Does this matter?
2、Crash Stack Trace
Fault thread info:
Tid:30180, Name:UnityMain
#00 pc 00000000000ce478 /data/storage/el1/bundle/libs/arm64/libavprovideolib.so
#1 pc 00000000000cd5b0 /data/storage/el1/bundle/libs/arm64/libavprovideolib.so
#2 pc 0000000000c02970 /data/storage/el1/bundle/libs/arm64/libunity.so
#3 pc 0000000000c009ac /data/storage/el1/bundle/libs/arm64/libunity.so
#4 pc 0000000000b85bc8 /data/storage/el1/bundle/libs/arm64/libunity.so
#5 pc 0000000000e716f4 /data/storage/el1/bundle/libs/arm64/libunity.so
#6 pc 00000000044ecaa8 /data/storage/el1/bundle/libs/arm64/libil2cpp.so
#7 pc 00000000044ec7e4 /data/storage/el1/bundle/libs/arm64/libil2cpp.so
...
The top two frames (#00 and #1) are inside libavprovideolib.so, indicating the crash originates from AVPro Video's native code.

3、Timeline of Events Before Crash
Timestamp | Event
14:28:09.699 | Unity C# calls ViewCtrlVideoPlayByCdn.LoadVideo() — loop mode enabled
14:28:09.699 | [VideoEngine] StopVideo called
14:28:09.700 | [VideoEngine] PrepareVideo called
14:28:09.702 | UNITY_OPENHARMONY: Calling Bootstrap
14:28:09.702 | AVProVideo: Bootstrap in ArkTS CALLED ✅
14:28:09.702 | `AVProVideo: Bootstrap in ArkTS
14:28:09.703 | dlopen failures begin — repeated attempts to resolve avprovideolib in moduleNs_default namespace ❌
14:28:09.705 | HarmonyVideoPlayer.cpp:48 createPlayer : playerId: 2080
14:28:09.705 | More dlopen failures ❌
14:28:09.706 | SIGSEGV — NULL pointer dereference 💥

4、Detailed dlopen Error Logs
The system linker (MUSL-LDSO) fails to find libavprovideolib.so through Unity's internal dlopen path. It attempts multiple name variants, all failing:

Error loading header: can't find library not implemented! in namespace: moduleNs_default
Error loading header: can't find library avprovideolib in namespace: moduleNs_default
Error loading header: can't find library avprovideolib.so in namespace: moduleNs_default
Error loading header: can't find library avprovideolib.dll in namespace: moduleNs_default
Error loading header: can't find library avprovideolib.dylib in namespace: moduleNs_default
Error loading header: can't find library avprovideolib.bundle in namespace: moduleNs_default
Key observations:

The error namespace ndk has no inherits, errno=2 suggests that the ndk linker namespace cannot inherit from or access libraries in other namespaces.
The library does exist at /data/storage/el1/bundle/libs/arm64/libavprovideolib.so (confirmed in the process memory maps).
The ArkTS NAPI layer successfully loads the library, but Unity's C++ layer (via IL2CPP → libunity.so → dlopen) cannot resolve it in the moduleNs_default namespace.
This dlopen failure pattern repeats three times (at 14:28:09.703, 14:28:09.704, and 14:28:09.705), corresponding to the Bootstrap call, a second resolution attempt, and the HarmonyVideoPlayer::createPlayer call respectively.
The string "not implemented!" appearing as a library name suggests AVPro's internal platform detection may be returning an incorrect/placeholder library path for OpenHarmony.

[289746647-bot]

cppcrash-com.DefaultCompany.TestHO-20260409150114.txt
@Chris-RH This is a new project, running only the AVPro Video demo scenes

[289746647-bot]

From the crash stack, it appears that the issue occurs in the Graphics.ExecuteCommandBuffer callback to a native function. Do you have any ideas for a resolution? @MorrisRH @Chris-RH

[289746647-bot]

Hi，From the crash stack, it appears that the issue occurs in the Graphics.ExecuteCommandBuffer callback to a native function. Do you have any ideas for a resolution? 原始邮件 发件人：Chris-RH ***@***.***> 发件时间：2026年4月8日 20:04 收件人：RenderHeads/UnityPlugin-AVProVideo ***@***.***> 抄送：289746647-bot ***@***.***>, Author ***@***.***> 主题：Re: [RenderHeads/UnityPlugin-AVProVideo] [OpenHarmony] AVPro Video's native library (libavprovideolib.so) causes a fatal SIGSEGV crash (Issue #2461) Chris-RH left a comment (RenderHeads/UnityPlugin-AVProVideo#2461) Can you reproduce this in a new project, running only the AVPro Video demo scenes? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.

[289746647-bot]

cppcrash-com.DefaultCompany.TestHO-20260409155834.txt this is the crash log 原始邮件 发件人：行者 ***@***.***> 发件时间：2026年4月9日 16:30 收件人：RenderHeads/UnityPlugin-AVProVideo ***@***.***>, RenderHeads/UnityPlugin-AVProVideo ***@***.***> 抄送：Author ***@***.***> 主题：Re: [RenderHeads/UnityPlugin-AVProVideo] [OpenHarmony] AVPro Video's native library (libavprovideolib.so) causes a fatal SIGSEGV crash (Issue #2461) Hi，From the crash stack, it appears that the issue occurs in the Graphics.ExecuteCommandBuffer callback to a native function. Do you have any ideas for a resolution? 原始邮件 发件人：Chris-RH ***@***.***> 发件时间：2026年4月8日 20:04 收件人：RenderHeads/UnityPlugin-AVProVideo ***@***.***> 抄送：289746647-bot ***@***.***>, Author ***@***.***> 主题：Re: [RenderHeads/UnityPlugin-AVProVideo] [OpenHarmony] AVPro Video's native library (libavprovideolib.so) causes a fatal SIGSEGV crash (Issue #2461) Chris-RH left a comment (RenderHeads/UnityPlugin-AVProVideo#2461) Can you reproduce this in a new project, running only the AVPro Video demo scenes? — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you authored the thread.