DSi Camera Record homebrew app?

Pk11

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dsi-camera. For video I have a branch called dsi-camcorder, quoting from Discord: (paraphrased)

DS⁽ⁱ⁾ Mode Hacking said:
Download:
Conversion:
  • Download convert.py and run the bin file from the app through it
  • Run ffmpeg -y -r 5 -i out/%04d.png out.mp4 on the outputted PNG sequence, note that 5 FPS is not perfectly accurate, that's just an estimate
Repo: <https://github.com/Epicpkmn11/dsi-camera/tree/camcorder>
Video: https://cdn.discordapp.com/attachments/547986366357700620/1026349047168106536/out.mp4
 

Pk11

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Hello, I am cozmicdudes. I lost access to that GBA Temp acc last year but all the links don't work for the camera recorder.
can you resend it?
Discord said:

hmm, same issue even though it works on discord. attached files instead.
 

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  • dsi-camcorder.zip
    246.4 KB · Views: 18

Pk11

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Thank you! Can you briefly explain what the convert.py does? And what the output file is? I can tell that it converts the .bin to a series of PNG files, but I can't manage to run the python script using Python 3.8.
The bin simply contains raw 256x192 15bpp BGR bitmap frames concatenated together, with u32 delays in between (in CPU cycles iirc, I meant to make that actually useful with milliseconds or so but haven't gotten around to it)

You probably just need to install Pillow (pip3 install Pillow) to run it.
 

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Wow, Nintendo's had a thing for 15bit color since the GameBoy Advance. I'm curious, does f.read do 8bits at a time? If so, isn't there a bit missing each time or does the camera just leave an extra bit on the end of each pixel palette? Sorry, I don't know much about how the DSi Camera works. Or Python. Especially Python.
 

Pk11

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Wow, Nintendo's had a thing for 15bit color since the GameBoy Advance. I'm curious, does f.read do 8bits at a time? If so, isn't there a bit missing each time or does the camera just leave an extra bit on the end of each pixel palette? Sorry, I don't know much about how the DSi Camera works. Or Python. Especially Python.
The highest bit of each 16-bits is always zero. It has a few uses on the DS depending on video mode (transparency bit, LSB of green), but with the camera it's just unused.

Edit: Actually it's probably always one, not zero, I don't remember for sure.
 
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