Homebrew Hardware video decoder?

[Peanut42]

Hi!

I want to send a stream of images to my Nintendo 3DS, but, before writting any code, I was thinking how I can get a good framerate through Wi-Fi. The chanllenge is send both top and bottom screens, so the bytes needed are as follow:

Bottom screen = 320 x 240 x 3 bytes = 230400 bytes
Top screen = 400 x 240 x 3 bytes = 288000 bytes

So, is a total of 518400 bytes (507 KiB). I will be sending 24 x 500 KB byes every second, so I want to reduce the amount of bytes sent. I would like to reduce it, by encoding the images, or "video", using a native video hardware decoder for the nintendo 3DS.

Does the Nintendo 3DS have a native hardware decoder or something as fast as possible?

 

[Megalegacy98]

Hi!

I want to send a stream of images to my Nintendo 3DS, but, before writting any code, I was thinking how I can get a good framerate through Wi-Fi. The chanllenge is send both top and bottom screens, so the bytes needed are as follow:

Bottom screen = 320 x 240 x 3 bytes = 230400 bytes
Top screen = 400 x 240 x 3 bytes = 288000 bytes

So, is a total of 518400 bytes (507 KiB). I will be sending 24 x 500 KB byes every second, so I want to reduce the amount of bytes sent. I would like to reduce it, by encoding the images, or "video", using a native video hardware decoder for the nintendo 3DS.

Does the Nintendo 3DS have a native hardware decoder or something as fast as possible?

The O3DS does not have a native hardware decoder. The N3DS does though.

 

[VinsCool]

The O3DS does not have a native hardware decoder. The N3DS does though.

Hmm care to explain? I didn't know that.

 

[Deleted User]

Hmm care to explain? I didn't know that.

Here you go: http://3dbrew.org/wiki/MVD_Services

 

[daxtsu]

Hmm care to explain? I didn't know that.

http://3dbrew.org/wiki/MVD_Services

I don't think 3dbrew mentions what kind of chip is actually behind it, though.

Edit: Jinx. Steve beat me to it.

 

[Peanut42]

So, stupid Nintendo make better hardware, more faster, with more features on the N3DS. I hate you so much Nintendo and yes, I have an O3DS.

For all in the thread, I was thinking then in compressing with a simple Deflate algorithm.

And just to be clear, Old3DS doesn't have hardware video decoder; BUT New3DS does.

Edit: Thanks for a quick response guys.

 

[Rinnegatamante]

If you want to use CPU decoding to not broke O3DS compatibility, you should take a look to JPGV format i wrote, it's a video format optimized for 3DS which have a basic compression algorithm (MJPEG as videocodec and Vorbis as audiocodec):

Info + PC Encoder: https://github.com/Rinnegatamante/lpp-3ds/tree/master/JPGV
3DS Decoder: https://github.com/Rinnegatamante/lpp-3ds/blob/master/source/luaVideo.cpp
3DS Video Player: http://gbatemp.net/threads/release-sunshell-a-powerfull-shell-for-3ds.382483/

 

[Peanut42]

If you want to use CPU decoding to not broke O3DS compatibility, you should take a look to JPGV format i wrote, it's a video format optimized for 3DS which have a basic compression algorithm (MJPEG as videocodec and Vorbis as audiocodec):

Excelent idea. I will try it later.

 

[the assaf]

Yellows8 actually wrote streaming homebrew at github, it called something like ctr-streamer

 

[hippy dave]

So, stupid Nintendo make better hardware, more faster, with more features on the N3DS. I hate you so much Nintendo and yes, I have an O3DS.

What utter dicks, they should have released a new model that was worse than the old one instead.