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marek-simonik / record3d

Accompanying library for the Record3D iOS app (https://record3d.app/). Allows you to receive RGBD stream from iOS devices with TrueDepth camera(s).
https://record3d.app/
GNU Lesser General Public License v2.1
382 stars 55 forks source link

Segfault when streaming from iOS 13 #2

Closed jankais3r closed 3 years ago

jankais3r commented 3 years ago

Hi Marek,

I am working on an app that uses the USB streaming feature of your app. The Python Demo App works flawlessly with my iPhone, however whenever I try to use it with iPad Pro 2020 I get a segfault and Python crashes.

I am attaching several crash logs produced this way. It happens in 100% of cases with my iPad.

macOS: 10.14.6 iPadOS: 13.5

$ python3 demo-main.py
Searching for devices
1 device(s) found
    ID: 4779
    UDID: 00008027-001E091A3606802E

Segmentation fault: 11

Crash.zip

marek-simonik commented 3 years ago

Hi Jan,

I suspect you have iOS 14 installed on your iPhone, am I right? The Python crashes are most probably caused because you do not have the latest version of Record3D installed on your iPad. The latest version of Record3D can only be installed when you are running iOS/iPadOS 14.

You have two options how to fix the crashing:

  1. (Recommended) Update to iPadOS 14 and download the latest Record3D update. The post-iOS-14 version of the library allows you to stream not only using the selfie FaceID camera, but also using LiDAR. Due to addition of LiDAR support, the library differs from its pre-iOS-14 version.
  2. Stay on iPadOS 13.5. Then you will need to clone the version/1.0.1 branch (i.e. git clone -b version/v1.0.1 https://github.com/marek-simonik/record3d.git) and build the library from sources.
jankais3r commented 3 years ago

Thank you, that explains it.