VisionReplayManager.create always gives me an error

[gariyanto]

Description

Got an error when running this command, although I already had a valid directory path with Mapbox recording data.

guard let visionReplayManager = try? VisionReplayManager.create(recordPath: path) else {
fatalError("(path) doesn't exist")
}

Expected behavior

visionReplayManager should be created and ready to be used for testing.

Actual behavior

Throw an exception complaining that the directory doesn't exist

Screenshots

If applicable, add screenshots to help explain your problem.

Configuration

• Device: [e.g. iPhoneXS Max]
• OS: [e.g. iOS13.1]
• Frameworks versions (leave the ones you're using):
  • MapboxVisionNative [e.g. 0.10.0]
  • MapboxVisionARNative [e.g. 0.10.0]
  • MapboxVisionSafetyNative [e.g. 0.10.0]
  • MapboxVision [e.g. 0.10.0]
  • MapboxVisionAR [e.g. 0.10.0]
  • MapboxVisionSafetyNative [e.g. 0.10.0]

Additional context

When running in the simulator, I can see the content of the directory with the recorded data below:
camera.bin ml_errors.bin
config.bin motion.bin
detections.bin platform_performance.bin
device.bin position.bin
fps_snapshots.bin road_description.bin
frames.bin signs.bin
gps.bin vcore_statistics.bin
heading.bin videos.json
images vm_statistics.bin
mappings.bin world_transform.bin

[chezzdev]

Hey @gariyanto. Could you please show how your path looks like? Also please elaborate on where the recorded session is stored. Is it a Documents dir, app bundle or something else?

[gariyanto]

Hey @gariyanto. Could you please show how your path looks like? Also please elaborate on where the recorded session is stored. Is it a Documents dir, app bundle or something else?

Hi @chezzdev, I created the storage path as follows:
let docs = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let docDir = docs[0]
storagePath = docDir.path + "/Mapbox/1/"

After recording the session, I tried to play it using VisionReplayManager but the error always happened.

[chezzdev]

Creating the path looks right.

I looked at the file list you've provided and I can't find a video.mp4 file in the list you've provided. This is required to replay the recorded video stream.

Did you use startRecording / stopRecording methods on VisionManager to record the session?

[gariyanto]

Creating the path looks right.

I looked at the file list you've provided and I can't find a video.mp4 file in the list you've provided. This is required to replay the recorded video stream.

Did you use startRecording / stopRecording methods on VisionManager to record the session?

Yes, I used startRecording / stopRecording methods on VisionManager as described in the documentation.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[xyzbilal]

I m trying to run Example project and I m getting same error. Nothing changed in code. any solution advised??

[xyzbilal]

Hey @gariyanto. Could you please show how your path looks like? Also please elaborate on where the recorded session is stored. Is it a Documents dir, app bundle or something else?

here is the path

let documentsPath =
            NSSearchPathForDirectoriesInDomains(.documentDirectory,
                                                .userDomainMask,
                                                true).first!

    let path = documentsPath.appending("/safety-alerts-drawing")

[gariyanto]

Hey @gariyanto. Could you please show how your path looks like? Also please elaborate on where the recorded session is stored. Is it a Documents dir, app bundle or something else?

here is the path

let documentsPath =
            NSSearchPathForDirectoriesInDomains(.documentDirectory,
                                                .userDomainMask,
                                                true).first!

    let path = documentsPath.appending("/safety-alerts-drawing")

Hi @xyzbilal, I had the same documentDirecory path as yours, and actually that's not the problem.
The problem was no video.mp4 saved into the directory. You need to implement VisionManagerDelegate then you will be able to automatically save the video.mp4 and eventually you can replay the recorded data.

[chezzdev]

Hey @xyzbilal! If you're trying to run Safety Alerts example, please follow the steps in Getting started section of the corresponding tutorial.
You'll need to download a session and upload it to the app so that it could be replayed.
Please write back if you have any difficulties.

[xyzbilal]

@chezzdev , @gariyanto thank you very much for valuable replies. I will consider what you suggest. thanks.

[chezzdev]

@gariyanto please try to record the sessions with the latest version of the framework: we've fixed a couple of issues with the file system, so video file should be saved more consistently.

[chezzdev]

Considering as solved. Please reopen the issue if you still see the problem.