Crash on windows when creating simultaneous captures

[54way]

Describe the bug

We have a surveillance system with 7 cameras in a game. When something occurs, the surveillance starts recording footage for that event. It's okay at first, but after 2 to 3 hours running, we start to get footages with size 0. And the log file appears "can't find moov or mdat chunks". When the error occurs, it can't recording any normal footage anymore, even if we use capture's inspector to menually press a "Start Capture" button in editor mode. In addition, after pressing "Start Capture", the preview on inspector doesn't present either.

Your Setup (please complete the following information):

• Unity version: 2021.3.4.f1
• AVPro Movie Capture version: 4.7.11
• Operating system version: Windows 10, Nvidia GTX 2070 super, Intel i7-8700, 32GB RAM
• Capture component used: Capture From Camera
• Capture settings (resolution, frame-rate, codec): one 1920x1080 three 576x1024
  three 300x 720
  frame-rate: 30 codec: H264

To Reproduce Steps to reproduce the behavior:

1. Create 7 "Capture From Camera"
2. For each capture, start capturing and after few seconds stop it.
3. Repeat step 2 frequently for few hours.

Logs can't find moov or mdat chunks

[MorrisRH]

Hey @54way, the "can't find moov or mdat chunks" will just be a side-effect of the capture failing elsewhere (it's output by the post-process script). Could you provide a full log for a capture that has failed to help identify what is going wrong?

[54way]

can't find moov or mdat chunks UnityEngine.Debug:LogError (object) RenderHeads.Media.AVProMovieCapture.MP4FileProcessing:Process (System.IO.Stream,System.IO.Stream) (at Assets/Plugins/RenderHeads/AVProMovieCapture/Runtime/Scripts/Internal/Mp4FileProcessing.cs:243) RenderHeads.Media.AVProMovieCapture.MP4FileProcessing:ProcessFile (string,string,RenderHeads.Media.AVProMovieCapture.MP4FileProcessing/Options) (at Assets/Plugins/RenderHeads/AVProMovieCapture/Runtime/Scripts/Internal/Mp4FileProcessing.cs:218) RenderHeads.Media.AVProMovieCapture.MP4FileProcessing:ProcessFile (string,bool,RenderHeads.Media.AVProMovieCapture.MP4FileProcessing/Options) (at Assets/Plugins/RenderHeads/AVProMovieCapture/Runtime/Scripts/Internal/Mp4FileProcessing.cs:185) RenderHeads.Media.AVProMovieCapture.MP4FileProcessing/<>c__DisplayClass32_0:b__0 () (at Assets/Plugins/RenderHeads/AVProMovieCapture/Runtime/Scripts/Internal/Mp4FileProcessing.cs:162) System.Threading.ThreadHelper:ThreadStart ()

[54way]

[woodrowproctor]

I got this error when I had Use Wait For End Of Frame unchecked

[Chris-RH]

Thanks @woodrowproctor,

@54way, does that help you?

[RichRH]

We've also discovered an issue with the auto-filename generation - we're looking into a fix but the above error can be reproduced if we hammer creation of new videos within a second of eachother (you might be able to bypass with custom names/subfolders if so).

Cheers,

[MorrisRH]

The auto-filename generation issue has been fixed and will make it into the next release. This should hopefully resolve the crash you are seeing.

[MorrisRH]

Version 5.0.2 has just been released and includes a fix for this issue.