One frame inaccuracy when trimming MP4 file

[MiMoHo]

I have a lot of issues to go through, so in order to make it easier for me to help you, I ask that you please try these things first

• Try with the newest version from GitHub
• Read the documentation and FAQ, Known issues, Troubleshooting
• Search for your problem under Issues or Discussions
• If you have an issue only with one particular file, use this form instead

Operating System

MacOS 12

Steps to reproduce

Using LosslessCut v3.53.0 arm64 on macOS 12.6.3, I was able to reproduce an issue with any MP4 H.264 file and it has nothing to do with Smart Cut as it happens in legacy keyframe cut mode as well.

Expected behavior

When trimming a H.264 1080p 25fps MP4 file, I noticed that the first and end frame in the export file is one frame inaccurate although I would expect to cut the clip right at the frame I visually see in the program.

Actual behavior

There is one frame added in the output file to the in and out marker I set in the program. Therefore, I assume the visual frame indication to be wrong.

Share log

No response

[mifi]

When you say one frame inaccurate, you mean relative to what's shown in LosslessCut's video view, right? If so, I believe it could be the same issue as #1487

[MiMoHo]

When you say one frame inaccurate, you mean relative to what's shown in LosslessCut's video view, right? If so, I believe it could be the same issue as #1487

Yes, that's what I mean @mifi

[mifi]

ok closing this as duplicate