Check_pts problem

[WildEgoLee]

Hello,First thank you for contributing to this GUI。 Recently,when I processed some video,it tried to check_pts.But when this work was done,I play the processed video,it played Caton in the first few seconds and even stayed on that frame. Wish you can give me some advice.

[cdgriffith]

I don't know what you mean by check_pts can you elaborate or state it differently? Thanks!

[WildEgoLee]

like this:

2022-01-19 20:07:20,032 - check_pts(3): timestamp of video frame is smaller than previous frame, changing pts: 400 -> 1250 (previous pts 1200).
2022-01-19 20:07:20,039 - check_pts(6): timestamp of video frame is smaller than previous frame, changing pts: 1600 -> 2450 (previous pts 2400).
2022-01-19 20:07:20,044 - check_pts(9): timestamp of video frame is smaller than previous frame, changing pts: 2800 -> 3650 (previous pts 3600).
2022-01-19 20:07:20,055 - check_pts(12): timestamp of video frame is smaller than previous frame, changing pts: 4000 -> 4850 (previous pts 4800).
2022-01-19 20:07:20,062 - check_pts(15): timestamp of video frame is smaller than previous frame, changing pts: 5200 -> 6050 (previous pts 6000).
2022-01-19 20:07:20,071 - check_pts(18): timestamp of video frame is smaller than previous frame, changing pts: 6400 -> 7250 (previous pts 7200).
2022-01-19 20:07:20,078 - check_pts(21): timestamp of video frame is smaller than previous frame, changing pts: 7600 -> 8450 (previous pts 8400).
2022-01-19 20:07:20,087 - check_pts(24): timestamp of video frame is smaller than previous frame, changing pts: 8800 -> 9650 (previous pts 9600).

Its mean seems to change my video's timestamp, making my video Caton

[cdgriffith]

I've never seen that before, and had to search around to find even where that exists in the code. Looks to be in the NVEncC encoder https://github.com/rigaya/NVEnc/blob/master/NVEncCore/NVEncCore.cpp#L3904

I was currently setting avsync to cfr if the frame rate == average frame rate (aka detects it as a cfr video, otherwise sets it as vfr. to default of cfr that their documents recommends, however looks like need to allow it to be specified, and in this case detect if the source is vfr and select that for output as well.

You could test it out locally as well to see if that fixes it would help. Go to "Raw Commands" tab and hit "Copy Commands" button.

Then paste those into a text editor like notepad. change --avsync cfr to --avsync vfr (if that doesn't work can try --avsync forcecfr , documentation for it ) and copy / paste that modified command into a command prompt and run it.

[WildEgoLee]

Thanks,when I added a order--avsync forcecfr,my error of Canton missed. Due to my carelessness of describing my problem in detail,causing your long time work ,I'm sorry for that.