Black screen after each image

[AchimPieters]

Overview of the Issue

After uploading, everything works, but between the images the screen turns black (flickers) and shows the next image? How to resolve this, so the images appear smoothly and disappear smoothly, without the black screen (and flickering)

Reproduction Steps

Steps to reproduce this issue:
Uploaded two images of 1.150Kb with the size of 3840x2160px in .jpg format.

Environment

• Raspberry Pi Hardware Version: Raspberry Pi 4 Model B Rev 1.5 (8GB)
• Raspberry Pi Network Setup: Wi-Fi
• Anthias Version: v0.18.8 [Latest]

[nicomiguelino]

@AchimPieters, does the issue occur when smaller images (for example, approximately 1920x1080px or 1280x720px) are used?

[AchimPieters]

@nicomiguelino Thank you for your reply. Yes, it occurs also in other settings like 1920x1080px or 1280x720px (tested).

[nicomiguelino]

Thanks, @AchimPieters. We're still assessing various solutions for the problem. We'll keep you posted. Changes are likely to be made on the C++ code. Open-source contributions are always welcome.

[Slow-Learner-1]

I've had the same problem on a Pi 4 and 3B+ running Bookworm OS lite. I've found that if I convert my image files from .jpg to .png the transition between images is much smoother.

[vseven]

I've found that if I convert my image files from .jpg to .png the transition between images is much smoother.

Thanks for this. I was having what I thought was this same problem with a very simple two JPG and a MP4. I converted the JPG's to PNG's and then I also saw that the person who updated it named the MP4 as file.mp4-1 for some reason (maybe duplicate file on their computer). After converting the two files and renaming the video file the blinking/black screen issue went away.

It was driving me crazy since it was making the TV re-pop up the "1920x1080" banner each time.

[AchimPieters]

For me, it's between small .mp4 files, as I don't have any other. Between each file, the screen goes black, no matter what I do or change. Maybe buffer related?

[vseven]

For me, it's between small .mp4 files, as I don't have any other. Between each file, the screen goes black, no matter what I do or change. Maybe buffer related?

Yeah, the black screen issue is back for me. Nothing changed, just came back a couple days later and is popping up the TV's signal thing. Not sure why no one else is having the issue unless they just don't use mp4's. Seems perfectly fine with only images.

[maedangad]

Nice to meet you, may I ask you a question?
When I play a video with Anthias, a blackout of about two seconds occurs during video transitions.
Do you know any settings or equipment I could use to prevent this issue?

[nicomiguelino]

We're still assessing options that could be a drop-in replacement for the video player that Anthias is currently using right now, which is VLC.

One of the option is to transition to Qt's multimedia player, but we still have to make sure that the change will not affect the devices (for all the supported platforms).

[liquido001]

Is there any changes solving this issue?

[nicomiguelino]

@liquido001, there aren't any changes yet, but feel free to contribute and open a pull request.

[areefxyz]

I have the same issue.
In my case, initially I have just one video, with duration of 60s, playing in loop.
At the end of the loop, there's always a 3-5s black screen before it starts playing the video again.

Device Model: Raspberry Pi 4 Model B Rev 1.2
Anthias Version: master@9cad443