defective frames on rendered video

RogerioBrito

Newbie Joined: May 30, 2023 08:41 Messages: 4 Offline

Solved by

May 30, 2023 09:01

Powerdirector 365 (21.4.5131.0)
MacbookPro 2022
MacOs Ventura 13.3.1 (a) (22E772610a)

Hello, I'm using PowerDirector to edit movies from my son's soccer games. Source movies are iPhone 14 Pro MOV files.
I'm exporting using the following configuration:

File Format: H.264 AVC
File extension: mp4
Profile type: default
Profile name/quality: MPEG-4 1920x1080/24p (16 mbps)

On all the movies I export I get several defective frames like the attached image.

I get the same results checking and not cheking Fast Video Rendering Technology.

What can I do?
Thanks


Filename	failed_frame.jpg	Download
Description	defective frame
Filesize	557 Kbytes
Downloaded:	6 time(s)

tomasc

Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline

May 30, 2023 10:44

The digital artifact is shown in the attached image. This can be when there is a lot of motion at a low bitrate. You could use 30 or 60 fps to record instead of 24.

If those artifacts do not show on the clip in the media library or other viewers on the pc, then go to preferences/Hardware acceleration and uncheck the hardware decoding and click OK. That should fix it. Use a 24 fps timeline to match the clips you recorded or export.

RogerioBrito

Newbie Joined: May 30, 2023 08:41 Messages: 4 Offline

May 30, 2023 16:55

Quote The digital artifact is shown in the attached image. This can be when there is a lot of motion at a low bitrate. You could use 30 or 60 fps to record instead of 24.

If those artifacts do not show on the clip in the media library or other viewers on the pc, then go to preferences/Hardware acceleration and uncheck the hardware decoding and click OK. That should fix it. Use a 24 fps timeline to match the clips you recorded or export.

Hello tomasc

I don't have a Hardware section on my preferences windows, please see attached image. I couldn't find hardware decoding anywhere on the Settings.

I have tried several different resolutions and framerates, formats (AVC, HEVC), extensions (MP4, MKV) and I have always those same defective frames. On the original files I don't have them, neither the preview on Powerdirector.

What else can I do?
Thanks!


Filename	settings.jpg	Download
Description
Filesize	586 Kbytes
Downloaded:	6 time(s)

optodata

Senior Contributor Location: California, USA Joined: Sep 16, 2011 16:04 Messages: 8630 Offline

May 30, 2023 17:02

There aren't many Mac users on the forum, so now we know that the Mac version doesn't have a Hardware Acceleration preferences page like the Windows version does.

In your case, it might be that you have a variable frame rate in your original clips. That's typical if they were shot with a phone camera, and you might want to try converting them to a fixed framerate using a free 3rd party converter like Handbrake.

RogerioBrito

Newbie Joined: May 30, 2023 08:41 Messages: 4 Offline

May 30, 2023 17:05

Some more information... I've just cut part of the video on the timeline, the part that had the defective frames.
And the defective frames changed! It's around 2:08 on the timeline... the new rendered movie had new defective frames around the same time. Those frames were okay on the other tests...

Please advise,
Thanks!

tomasc

Senior Contributor Joined: Aug 25, 2011 12:33 Messages: 6464 Offline

May 30, 2023 18:30

In your above settings screenshot, your Profile export is set to 60 fps, while your timeline is set to 30 fps instead of 29.97 so I will assume that you don’t live in North America. You claim earlier that your camera recording is set to 24 fps. None of these settings match which will cause judder in the exported file. Try optodata’s conversion solution. It should help.

RogerioBrito

Newbie Joined: May 30, 2023 08:41 Messages: 4 Offline

May 30, 2023 21:34

Converting the original files to a fixed frame rate did it.

Thanks a lot guys!

Best,