January 2024 Bits

January 1 - 3D movies on my 3DS

3D Movie Viewer

The New 3DS comes with a “3D Movie Viewer” application that is able to play moflex files, but I cannot find any more information about this software. Searching for converting 3D video to moflex mostly comes up with tutorials on how to use Mobiclip. I don’t really want to try to figure out how to make that work. It’s not really worth it at that point. The video also has to be in a small format - 400x240, or I guess 800x240 if you include both left and right channels.

I’m not going to continue with this, but you can find some movies already formatted correctly here: https://3ds-cia.fandom.com/wiki/Movies/TV_Cias

References:

• https://gbatemp.net/threads/converting-3d-videos-to-moflex.631644/

• https://gbatemp.net/threads/converting-3d-videos-to-moflex.434254/

Video player for 3DS (homebrew software)

I have a modded 3DS and one of the applications I installed is “Video player for 3DS”. First I need to get some 3D movies.

I got a 3D movie, and I will need to convert it into a format that will work. I will follow https://github.com/Core-2-Extreme/Video_player_for_3DS#prepare-videos-advanced-users which links us to https://gbatemp.net/threads/release-video-player-for-3ds.586094/page-10#post-9575227 I will use the hardware accelerated version. I changed all \ to / to work on Linux, although I think it may have worked anyway without that change. Notice the typo of ight.mkv needs to be changed to right.mkv. Notice the typo of r-c:v needs to be -c:v (this looks like a copy-paste error).

# Not hardware accelerated:
ffmpeg -i INPUT -vf scale=852:240:flags=neighbor scaled.mkv
  && ffmpeg -i scaled.mkv -filter_complex "split[l][r];[l]stereo3d=sbsl:ml[left];[r]stereo3d=sbsl:mr[right]" -map [left] -map 0:a -c:a copy left.mkv -map [right] -map 0:a -c:a copy right.mkv \
  && mkdir 1 \
  && mkdir 2 \
  && ffmpeg -to 1:30:00 -i right.mkv -c:v copy -c:a copy .\1\right.mkv \
  && ffmpeg -to 1:30:00 -i left.mkv -c:v copy -c:a copy .\1\left.mkv \
  && ffmpeg -ss 1:30:00 -to 3:00:00 -i right.mkv -c:v copy -c:a copy .\2\right.mkv \
  && ffmpeg -ss 1:30:00 -to 3:00:00 -i left.mkv -c:v copy -c:a copy .\2\left.mkv \
  && ffmpeg -i .\1\left.mkv -i .\1\right.mkv -map 0:v:0 -map 0:a:0 -map 1:v:0 -vcodec mjpeg -s 426x240 -b:v 3M -ac 2 movie1.avi \
  && ffmpeg -i .\2\left.mkv -i .\2\right.mkv -map 0:v:0 -map 0:a:0 -map 1:v:0 -vcodec mjpeg -s 426x240 -b:v 3M -ac 2 movie2.avi
# Hardware accelerated:
ffmpeg -i '../Avatar 3d (2009) HSBS BrRip x264 - YFIY.mp4' -vf scale=800:240:flags=neighbor  -c:v h264_nvenc -maxrate 100M -b:v 12M -minrate 6M scaled.mkv \
  && ffmpeg -i scaled.mkv -filter_complex "split[l][r];[l]stereo3d=sbsl:ml[left];[r]stereo3d=sbsl:mr[right]" -map [left] -map 0:a -c:a copy -c:v h264_nvenc -maxrate 100M -b:v 12M -minrate 6M left.mkv -map [right] -map 0:a -c:a copy -c:v h264_nvenc -maxrate 100M -b:v 12M -minrate 6M right.mkv \
  && mkdir 1 \
  && mkdir 2 \
  && ffmpeg -to 1:30:00 -i right.mkv -c:v copy -c:a copy ./1/right.mkv \
  && ffmpeg -to 1:30:00 -i left.mkv -c:v copy -c:a copy ./1/left.mkv \
  && ffmpeg -ss 1:30:00 -i right.mkv -c:v copy -c:a copy ./2/right.mkv \
  && ffmpeg -ss 1:30:00 -i left.mkv -c:v copy -c:a copy ./2/left.mkv \
  && ffmpeg -i ./1/left.mkv -i ./1/right.mkv -map 0:v:0 -map 0:a:0 -map 1:v:0 -vcodec mjpeg -b:v 3M -ac 2 movie1.avi \
  && ffmpeg -i ./2/left.mkv -i ./2/right.mkv -map 0:v:0 -map 0:a:0 -map 1:v:0 -vcodec mjpeg -b:v 3M -ac 2 movie2.avi

After we are done with that, we have two files: movie1.avi and movie2.avi. It’s like this to overcome the FAT32 filesize limitation so we can still have decent looking movies. Notice we use h264 encoding because that has the best benchmark.

Open movie1.avi in the “Video player for 3DS” and it works! Mostly. The video is in 3D, but it is squished. Remember that select gets you full screen, but will not fix a video that is “squished”. My video ended up being “squished”, but I think that’s because of my input file.

References:

• Video Player for 3DS

  • https://gbatemp.net/threads/release-video-player-for-3ds.586094/

  • https://github.com/Core-2-Extreme/Video_player_for_3DS

  • https://www.gamebrew.org/wiki/Video_player_3DS

• Conversion

  • https://gbatemp.net/threads/release-video-player-for-3ds.586094/page-10#post-9575227

Automating Movie Downloads - 3D Movie Radarr Instance

When most people want to keep multiple versions of a particular movie, they will make multiple Radarr instances. I will add this profile to it: https://trash-guides.info/Radarr/Radarr-collection-of-custom-formats/#3d

I’ll likely come back to this in the future, as it would also be cool to automate the conversion of these files using the command I described above.

January 18 - Laptop Monitor Refresh Rate Reset after Reboot

This issue was pretty easy to solve:

gsettings set com.system76.hidpi enable false

(Thanks https://www.reddit.com/r/pop_os/comments/u6wvxw/comment/i5f1dxw/)