Socket Errors

[Pliskin92]

Hi Stephen.
Sometimes, while the Drone is Flying, the drone disconnects from the program giving more than one socket error, and the biggest problem is that I cannot connect to the drone without exiting the program and launching it again. Why does the Drone give me an error like this?This is a big problem, especially when flying at an height of 20 meters.
Thanks in advance,
Mattia

[AndersMalmgren]

Try to increase the timeout time, the default 500 ms is sometimes exeeded

[Pliskin92]

I thought about this, yeah it could be. I'll try today and I hope it works. I had to increase also the ping timeout because 50% of times I start the app it crashes for ping error. Thank you very much!

[Pliskin92]

It seems quite working, but there's another problem, could it be that when I receive a call from my phone that the software retrieve a socket error?

[shtejv]

Hi Pliskin ... The network code still seems to be a bit fragile ... so when there are other strong signals, it seems to break down. That's a huge problem that I also encountered when giving the presentation.

Btw. Stephen doesn't work for this project anymore. I'm Thomas :-)

[Pliskin92]

Oh, sorry Thomas :)
Thanks for the reply.
So, what could we do about this?Rewrite totally the Network classes? Any suggest?

[AndersMalmgren]

Very strange, works perfect for me with the timeout fix, here's a youtube clip I just did to prove it.
Its a p264 test, I use a low bitrate for test purpose, the picture can get way better than this, as you can see I lose tons of packets but connection stays up. Its my own frontend, but in the backend its the same .NET SDK (Except for the new codec offcourse)

http://www.youtube.com/watch?v=LtLUbFGz8Hw&hd=1

[Pliskin92]

Well probably the problem is because I used the mobile phone while the Drone was flying. By the way, I can't wait for the new release of the .Net Sdk. You're doing a great job. I noticed that VZ is always zero, but not only in .net... And the configuration of the drone is unaccessible for me, and I don't know why... Do you have also this problem or it is only mine?
You made a great video, probably the next sdk release will be quite perfect :)

[AndersMalmgren]

Yupp, mine vz is reporting zero too.
I have a problem right now with multicfiguration, some settings does not work... Will have to fix that before i can have a release ready

[AndersMalmgren]

Ok, my fork is updated with 1.7.4 support, please try and see if it works before I do a pull request to the master

[Pliskin92]

I made something funny for vz... Waiting for a happy new release, I made a DispatcherTimer with a timer every second that checks the altitude of the second before and simply calculates the speed in m/s in this way: altitude 1 second before - altitude now... it works, it's stupid, horrible, disgusting...But it works. Ahahah :) What do we have to try Anders?I don't understand, sorry

[AndersMalmgren]

Try my fork, i dont want to push it to the master until everythiing checks out

https://github.com/AndersMalmgren/ARDrone-Control-.NET

[Pliskin92]

Ok, let's test if it is very good as I am expecting :)

[Pliskin92]

I get the same video errors in Stream.Addframe... But about the video that I made I think I don't have the right codecs, because I checked "use p264 codec". Anyway, the HUD is more efficient and sometimes, even the Drone seems to lose connection (the image freezes for sometimes 2 seconds) the connection remains stable.
About the video, can you give me a place to find the same codecs you have used?
I want to try if it is only mine problem or about the program ( i think it's only mine btw)

[AndersMalmgren]

The codec is included in the sourcecode, so it should work.. Please give me the error message

[Pliskin92]

I did not check the checkbox "Compress Video", I made the video but if I open it it says "Windows Media Player: problema durante la riproduzione del file."in italian, so in English is "Windows Media Player: problem while playing the file.". It seems like a codec error.
The other problem is the exception in Stream.AddFrame, it says that probably memory is corrupt or somethin else, but I did not record lots of videos so I don't know more about that