RetroArch 1.4.1 Netplay

eDrinker · 23 Feb 2017, 22:33

@mediamogul picodrive 1.91 d6be4fa

When you say romset what exactly do you need. We were testing a few variations of golden axe 1 and 3

mediamogul · 23 Feb 2017, 22:39

@eDrinker

When you say romset what exactly do you need.

Was it perhaps "No-Intro" or "Good Set"?

eDrinker · 23 Feb 2017, 22:42

@mediamogul no intro

mediamogul · 23 Feb 2017, 23:17

@eDrinker

I wouldn't think there would be any problem with No-Intro. I'm gonna take another crack at the whole thing tonight, so I'll try a mix of No-Intro and Good.

tekn0 · 24 Feb 2017, 00:02

@mediamogul Have you verified your router is allowing traffic on the select tcp/udp ports? Your firewall could be blocking you. I think it's port 55435 but I might be wrong. Verify with a site like http://www.canyouseeme.org/ or google "port forward test"

More info here for others: https://portforward.com/

mediamogul · 24 Feb 2017, 00:47

@tekn0

Have you verified your router is allowing traffic on the select tcp/udp ports?

That's a good call, but I've already verified the port forwarding.

mediamogul · 24 Feb 2017, 03:34

I'm currently hosting a game of Dr. Mario. If anyone wants to try and log on as the second player, my user name is Pseudoscience, I'm using lr-fceumm that I just updated and my ROM is from the "Good Set". If this is to work at all, the second user must match those specifics, start the game with the core and have it running when they try to connect with me. I'll be playing a one player game for a while and I believe it will announce when a second player joins. I'll be checking back here from time to time to read any comments that may pop up.

mediamogul · 24 Feb 2017, 04:18

I've already had a few bites. Twice it gave an onscreen error that noted mismatched implementations. I suppose that could either be an incorrect version of lr-fceumm or RetroArch itself. I also got one error from someone that said mismatched content. I sure that was a mismatched ROM. I feel like I'm configured correctly now, it's just a matter of finding a compatible second player. I plan on playing for another 40 minutes if anyone else wants to give it a shot.

mediamogul · 24 Feb 2017, 05:19

All in all, about seven people tried to connect to me. Everyone but one had mismatched software versions and there was that one other who had a mismatched ROM. Oh well, I think two hours is a nice round number for tonight.

eDrinker · 24 Feb 2017, 08:48

Hello,

I just want to try and summarize although please correct me where/if possible.

I see this "Netplay" as two parts:

Part 1 - "Net Rooms" (Optional and Automatic Way To Connect To Other Players)

This thread as primary focused on understanding the database and content matching. Trying to understand how the scanning works, which files are created, how and what's it matching against etc.

My understanding of "Net Rooms" is to assist the average user.

It's to assist non technical players to find other players with the same:

Version of retroarch
Same emulator
Same exact rom

A few of us have managed to get matching content, but unable to connect.

To date no one on this thread has been able to verify this works and has connected to another player.

Part 2 - Manual Connection (either you connect as the client or the host and you connect via IP)

As per the previous posts, it would appear the old way no longer works

https://github.com/RetroPie/RetroPie-Setup/wiki/Netplay

The game will crash the emulator back to ES or Attract mode if you try to launch with "Netplay"

Launching "Retroarch" menu via "Select + X" in game and attempting to connect via IP even if you have the same emulator, version of Retroarch and exact same Rom will still fail to connect.

I personally want to try the net code and syncing improvements regardless if I connect via "Net Rooms" or via "IP".

I don't believe that matched content is required to connect via IP, it's just a different way of connecting and we should focus on trying to prove if the manual way works first.

tekn0 · 27 Feb 2017, 02:08

@mediamogul retroarch seems to match the content by CRC database. This libretro database is based off of the "No-intro" rom sets.

Cattmlark · 28 Feb 2017, 14:46

Has anyone had any luck with this yet, as i still can't get this working. Even if i find a netplay room that reports "Compatible Content" i cant connect. If i am lucky enough to find that room's external IP address out, again i still cant connect with this new method.

Additionally the old method (enabling Netplay when launching a ROM) doesn't work any more for me either, it just jumps me straight back to emulation station when i try to enable it.

mediamogul · 28 Feb 2017, 14:57

@Cattmlark

I have a feeling that the quick connect feature is already able to function on RetroPie. It's just going to always be difficult to find a proper pairing of installations and content. The manual connection method is going to need to be fixed by the RetroPie team at some point, but unfortunately many advancements to the project will likely have to be put on hold while they deal with a scumbag trademark troll. That said, it's the -frames argument used at launch that is deprecated and causing the software to fail. Both users could try launching a game and connecting through the RetroArch GUI. I don't see any reason why it wouldn't work as long as you both have the same RetroArch, core and ROM between you.

mediamogul · 28 Feb 2017, 15:52

@tekn0

That's good to know, thanks. I've been using the "Good" set for well over a decade now. Maybe it's time for a change.

Rion · 28 Feb 2017, 15:55

@mediamogul said in RetroArch 1.4.1 Netplay:

@tekn0

That's good to know, thanks. I've been using the "Good" set for well over a decade now. Maybe it's time for a change.

Welcome to the future! 😉

mediamogul · 28 Feb 2017, 16:05

@Rion

Welcome to the future!

Thanks! I'm a little embarrassed to ask, but how do you use the three seashells?

Rion · 28 Feb 2017, 16:12

@mediamogul I never could figure it out. I just used my hand and intense / severe use of hand soap.

eDrinker · 28 Feb 2017, 16:24

@mediamogul said in RetroArch 1.4.1 Netplay:

Both users could try launching a game and connecting through the RetroArch GUI. I don't see any reason why it wouldn't work as long as you both have the same RetroArch, core and ROM between you.

Tried that, couldn't get it to work.

mediamogul · 28 Feb 2017, 18:39

@eDrinker

Did it produce an error or just not work?

eDrinker · 1 Mar 2017, 07:40

@mediamogul said in RetroArch 1.4.1 Netplay:

@eDrinker

Did it produce an error or just not work?

Failed to initialize or connect, I can't remember which. On my PI 3
My friends which is a PI2 would just crash and needed a hard power reset

We used to play netplay before the update with no issue.