MP4 Output Files Have Low FPS

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MP4 Output Files Have Low FPS

Postby sbgaming » Sat May 05, 2018 8:24 am

Since 1 May (or thereabouts), although in-game FPS and the Bandicam FPS overlay both show 60+ FPS, the MP4 output files are ranging from 30-45 fps.

I checked older recording, and they are definitely ~60fps. I've recorded over 800 videos. I am confident I know what I am looking at.

I have just updated to the latest version of Bandicam, and it is still happening.

The only two things that have changed are the recent Windows 10 update and Nvidia updating their drivers multiple times.

However, as in-game and the overlay both show 60+ FPS, I am assuming it is Bandicam causing the issue.

My settings have not changed in 18 months:
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Last edited by sbgaming on Sat May 05, 2018 10:47 am, edited 1 time in total.
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Re: Output Files Have Low FPS

Postby sbgaming » Sat May 05, 2018 10:15 am

After some more testing, AVI output maintains the correct FPS.

So it only seems to be MP4.

However, I tested MP4 using OBS and it maintained the FPS as well.

So it is a Bandicam issue with MP4 output since the latest Windows 10 and/or NVidia driver updates.
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Re: MP4 Output Files Have Low FPS

Postby sbgaming » Sun May 06, 2018 7:43 am

I thought AVI output would be a stop-gap. Nope.

Corrupted.

Spent 3 hours today trying to recover 35 minutes of gameplay that can't be repeated.

Lost about 25% of the recording.

Sorry bandicam. Either RESPOND or I guess I find an alternative. NOT HAPPY!
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Re: MP4 Output Files Have Low FPS

Postby Bandicam Company » Mon May 07, 2018 12:06 am

Hello sbgaming,

It might be a problem with the graphics driver.
First, please uninstall the graphics driver completely.
Image

And then, please install the latest version of the graphics driver and try recording again.

If it does not seem to help, please let us know your PC specs such as CPU, GPU, OS, and graphics driver version and your recording target.

We look forward to you reply.

Thank you.
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Re: MP4 Output Files Have Low FPS

Postby sbgaming » Mon May 07, 2018 5:04 pm

I have retested after uninstalling and reinstalling the driver and the issue remains. Although games and bandicam report ~60fps the MP4 output varies between 30-45fps.

Running the same test on OBS achieves a steady ~60fps.

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Re: MP4 Output Files Have Low FPS

Postby Bandicam Company » Mon May 07, 2018 8:21 pm

Hello sbgaming,

Thank you for getting back to us.
What is your recording target?

Thank you.
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Re: MP4 Output Files Have Low FPS

Postby sbgaming » Mon May 07, 2018 9:17 pm

It's a game. This issue has occurred with the following (so far):

Path of Exile
Borderlands
Tomb Raider 2013
Skyrim
Playstation Remote Play
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Re: MP4 Output Files Have Low FPS

Postby 4EverMaAT » Wed May 16, 2018 9:44 am

sbgaming wrote:I thought AVI output would be a stop-gap. Nope.

Corrupted.

Spent 3 hours today trying to recover 35 minutes of gameplay that can't be repeated.

Lost about 25% of the recording.

Sorry bandicam. Either RESPOND or I guess I find an alternative. NOT HAPPY!



do you try to record all of your video in one file?
How large is the final file size?
How long is it (HH:MM:SS) approximately?


Using other screen recording program in the past where it was unattended (BSR screen recorder), I found out that it is best to break up the recording (automatically) into smaller pieces because:
1) if the recorder / computer crash, the video is still saved up until the crash point.
2) you could backup to the cloud as additional option (using additional private script)
3) easier to work with smaller files (loads into video player/editor quicker, discard parts you dont want without editing software, etc) You can always join the files (lossless-ly) later using bandicut or other video joiner software as they will all be the same aspect ratio.
4) larger unfinished file increase the chance of corruption.

bandicam-auto-complete-recording enable by time or file size.png
bandicam-auto-complete-recording enable by time or file size.png (81.01 KiB) Viewed 957 times


You have little to gain by recording several hours of video and holding it all in memory, especially such high settings. Save it every x minutes / x MB. 3-10 minute chunks might be good enough, but you will have to experiment. (edit2: to speed up testing, try 15, 20, 30 second increment videos first, replay in your favorite video player to see if there is any loss in quality and the size of the files)

edit: It is not just your system specs that are important, but the limitations of the recording software/editing software/etc.

It is extremely frustrating to have to redo an entire sequence again (that may span several hours).

Also, your specs seem pretty high....I assume you are using SSD of some kind?

-----
OBS I hope will incorporate this . I suppose you can also try to get it coded privately (ability to "auto-save")
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Re: MP4 Output Files Have Low FPS

Postby Bandicam Company » Thu May 17, 2018 5:09 am

Hello sbgaming,

Sorry for the late response.
We were able to recreate the frame dropping issue while recording Path of Exile and forwarded the report to our development team.

Thank you.
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