Project mobipeg - World's first OSS video encoder for Wii, 3DS, and DS Mobiclip Video

Leonmike · Tuesday at 9:59 PM

quatric said:
No, you need Mobipeg GUI, compiled. I made some experimental changes to split 3D moflex into 2 files. Please try it out, you too @Leonmike

https://gofile.io/d/GFMghe

I just tested this version, and the decoded video is still the unified one that seems to shake... and I tested it with the other one that doesn't get decoded, and it's the same story.

Here, I'm giving you the sample files I'm using.

eviltrainer · Tuesday at 10:22 PM

Leonmike said:
I just tested this version, and the decoded video is still the unified one that seems to shake... and I tested it with the other one that doesn't get decoded, and it's the same story.

Here, I'm giving you the sample files I'm using.

Do these video have no sound? And did you manage to decode both of them and get the "shaky" output?

Leonmike · Tuesday at 11:51 PM

eviltrainer said:
Do these video have no sound? And did you manage to decode both of them and get the "shaky" output?

I only managed to decode one—which has no audio and is shaky—whereas I can't seem to decode the other one (which I know has audio from a mod); the program says it finished, but no resulting video appears...

quatric · Thursday at 8:54 PM

@eviltrainer @Leonmike I fixed the moflex decoding, please try it out. And about playing video, I'm working on it (but it might not work on this commit) https://gofile.io/d/vBEVuI

Leonmike · Friday at 2:25 AM

quatric said:
@eviltrainer @Leonmike I fixed the moflex decoding, please try it out. And about playing video, I'm working on it (but it might not work on this commit) https://gofile.io/d/vBEVuI

Hi, I just tested the decoding; the videos that wouldn't decode before are now decoding, but without audio. However, the resulting videos are still shaky, even if I select the option for just the left side...

I also want to point out a caveat: with the version prior to the one you shared, I created a *moflex* file with audio and the game accepted it as valid. I’m not sure if the audio decoding isn't happening during the process... but this is already a significant step forward; you're very close to having the definitive tool.

quatric · Friday at 5:49 PM

@Leonmike We should have a winner: http://gofile.io/d/Sv3tPx/

This decodes the moflex in 2 files properly. For the one you gave me with no sound, please try reencoding with this version

Leonmike · Friday at 9:20 PM

quatric said:
@Leonmike We should have a winner: http://gofile.io/d/Sv3tPx/

This decodes the moflex in 2 files properly. For the one you gave me with no sound, please try reencoding with this version

Hi, I’ve just tested the tool and it works wonderfully. The encoding is solid; I no longer have the issue where videos generated by the tool—even in high-quality mode in previous versions—seemed to have slight motion artifacts or blurriness. Speaking of previous versions, I also noticed a substantial improvement in file size when using that mode. Before, the generated files were quite heavy; for instance, if my MP4 was 400KB, the file created in base mode would be 1MB (or 1.5MB in high-quality mode). Now, however, the files are much lighter: if the MP4 is 400KB, the resulting Moflex file is 480KB—a great size for high-quality conversion—while a file without that mode is just 115KB. That is an excellent file size for translation mods or other projects that require it.

Moving on to decoding—it works wonderfully. Having the two MoFlex views is a huge help for anyone wanting to create MoFlex files with subtitles in their own languages. The only things I think are missing are: first, the decoder should detect if a MoFlex file contains audio and extract it separately (I mention this because I know MoFlex files with audio exist—I actually sent you one that has it); and second, the program should indicate the Mob3dLayout mode during decoding so it can be configured correctly. In my tests with 3D MoFlex files, the games kept crashing—I’m not sure if it’s due to the layout or what, but it happens—whereas the game runs perfectly fine when using a 2D MoFlex file.

That said, I hope this feedback helps you improve the tool. It’s been amazing for me, as I’ve been looking for a way to create MoFlex files for 3DS fan translations. So, a huge thank you for considering my feedback, and thanks again for creating such a useful and wonderful tool.

By the way, I made a video on my channel discussing your tool alongside others, and judging by the comments, people are really happy that your tool exists.

P.S. Sorry if my replies sound a bit odd; I’m using Google Translate to respond and comment... sorry!

(Edit: I just realized that, although the short Moflex file I created loads correctly in the game I’m translating, the test video I made for a different game now causes a crash—even in 2D mode—whereas before it worked fine and the game loaded it normally. The version of the tool where the Moflex file still worked is this one: https://gofile.io/d/GolYSo

If I may make a recommendation, I suggest comparing both versions and trying to give the tool the functionality of the old one, while incorporating the new version's file size optimization and improved output video quality. If you need a sample video showing what happens, let me know and I can quickly make one so you can see what I mean.)

quatric · 2026-08-08T19:13:27+0100

@Leonmike Glad to know it's working better.

For the moflex which crashed, can you try this one?

http://gofile.io/d/WTNEvM/

Post automatically merged: Yesterday at 7:49 PM

@Leonmike Can you also try this one?

http://gofile.io/d/iBZvjQ/

Leonmike · 2026-08-09T04:54:52+0100

quatric said:
@Leonmike Glad to know it's working better.

For the moflex which crashed, can you try this one?

http://gofile.io/d/WTNEvM/

Hi, sorry for the delay. I’ve tested it, and this version works perfectly again; the resulting file size is good, the file plays back correctly, and I think I notice a slight improvement in video quality when using high-quality mode. The only issue is that the game still crashes when creating a 3D Moflex file, whereas it works perfectly with a 2D Moflex file.

quatric said:
@Leonmike Can you also try this one?

http://gofile.io/d/iBZvjQ/

As for this version here... I tested it, and its decoder works fine—just like the other one—but the game crashed when generating the Moflex files; it didn't matter if it was a 3D or 2D Moflex, the game crashed...

So, having said that, I think the winner between these two versions is this one: http://gofile.io/d/WTNEvM/

In my tests, this version worked wonderfully; I even tested a Moflex file with audio, and the game requiring it loaded normally and ran very well. The only things I think this version needs are: decoding the audio when decoding a Moflex file (if the file contains audio); setting the video decoding frame rate to 24 (which, based on my tests, is the standard for avoiding slowdowns); and fixing the issue where 3D Moflex files crash the game (since 2D ones work perfectly). Otherwise, I think it's excellent—especially when comparing the file size of the original Moflex to the one created with your tool; the new one is slightly lighter while maintaining good quality and normal playback speed.

Project mobipeg - World's first OSS video encoder for Wii, 3DS, and DS Mobiclip Video

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