Edit Infobox DS Homebrews: Streamer-ds

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streamer-ds is a homebrew application that is able to stream desktop to the Nintendo DS created by Daniel Zalega (aka dbeef). ==User guide== ===How to use=== * Create hotspot on your laptop. * Run .nds file on your NDS. * Connect to your hotspot on your NDS via the .nds file. * Run the python script: desktop_client.py. ===How it works=== NDS opens port 8080, python script connects PC to it, then: * Python makes screenshot, resizes it to 256px or 128px (depends how smooth transmition you want, 256px takes ~0.6s on frame, 128px ~0.3s). * Calls grit to make a 16 bit, lz77 compressed raw binary version. * Sends image size to the NDS. * Sends image. * Receives ACK character from NDS. * Repeat. ===How to make WIFI hotspot=== * In Ubuntu open Network Connections > Add New. * Go to Wi-Fi security - NDS supports only WEP security (note that it's dangerous to beacon that poorly secured network all the time, use this hotspot only when playing with your NDS), select WEP 40/128 bit key (Hex or ASCII). * Select some random 5 character (only digits) password. * In Wi-Fi tab select Mode to Hotspot. * Save it, then open Network. * Click Connect to to a hidden network. * Select network that you've just created (by default its name will be hotspot). * You're done, if you were previously connected with another network via wifi you'll be disconnected. * Now you can connect to this network through your NDS. ===Limitation/Performance=== Since it only sends lz77 compressed bitmaps through the network, you won't be suprised that for a 2004 portable console that much of bytes will be a shock therapy. On average it's somewhere between 10-20 kB per 256px frame and 5-10 per 128px frame. Every frame must be decompressed on NDS (it has a dedicated hardware for that so it's not that bad in this task) and that's the thing that takes most of the time (around 2/3 of frame time). Attempts have been made to send non-compressed bitmaps but it took around 80kB per each and it took even more time (this time the WiFi capabilities of the NDS were the bottleneck). ===FAQ=== '''Q. Can I control my desktop through this app?''' You could do it though an alternative version (can be found on [https://www.youtube.com/watch?v=WR8Y4Iro9t0 this video], however capturing input only occur every frame due to the absent of multiple threads on NDS, which means it will happen every ~0.3 second and not practical. If you're interested only in capturing key input (without the video part), you can use another program [https://github.com/dbeef/pc-controller-ds pc-controller-ds]. ==Screenshots== https://dlhb.gamebrew.org/dshomebrew/streamerds2.gif https://dlhb.gamebrew.org/dshomebrew/streamerds3.gif ==Media== '''Streaming desktop to the 2004 NintendoDS - Smooth, stable 3 fps''' ([https://www.youtube.com/watch?v=ESSFMSbR2Kw dbeef]) <br> <youtube>ESSFMSbR2Kw</youtube> '''Streaming desktop to the 2004 NintendoDS - Little performance improvement''' ([https://www.youtube.com/watch?v=Z8DLfSR5GKQ dbeef]) <br> <youtube>Z8DLfSR5GKQ</youtube> ==External links== * Author's website - https://dbeef.lol * GitHub - https://github.com/dbeef/streamer-ds * GBAtemp - https://gbatemp.net/threads/streaming-pc-desktop-to-nds.512965

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