not sync between audio and video when record by vlc.dotnet.core ???

[thetiennguyen]

I have an issue / a question (pick one) about Vlc.DotNet.
Currently, I am building a project that recording video and audio from camera ip by vlc.dotnet.core. However, video was recorded has a problem is that: audio and video not sync. audio slow than video. How to fix it. Can you help me.
I send my project recordbyVlc and video in debug folder. Thanks a lot.

RecordbyVlc.zip

Generic information

• Vlc.DotNet version : 3.1

• Vlc.DotNet project used : WinForms

• libvlc version : Version x86 + I got it by download manual from site: http://download.videolan.org/pub/videolan/vlc/

• .net version : 4.7.2

• Project language : C#

• Project build architecture : AnyCPU

• Operating system : (Windows 10 x64)

Summary

(What happens, when, how? Steps to reproduce (with sample codes))

• I confirm that my issue doesn't happen in VLC itself.

[mfkl]

Have you tried various libvlc versions? This would be a libvlc issue/limitation, not a vlc.dotnet one, so I'm afraid we can't help you much. Have you tried with ffmpeg directly? How's the delay then?

[thetiennguyen]

Thank for your answer. I did not try to test with ffmpeg. Do you suggest some ideas for me?

[mfkl]

Do you suggest some ideas for me?

I did.

• Try with ffmpeg,
• Try with other libvlc versions,
• Try with the desktop VLC app,
• Report on trac.videolan.org but for this you need to provide a C/C++ repro.