Not working with D700

[puhitaku]

From YasukiKishi:

• D700を電源ON⇒mtplvcap.exe起動したらシャッターは開く。
• localhost:42839でISO,F値,Focus制御はできるが、Width,Height,Frame rateの情報は取れていない、プレビューも絵が映らない
• localhost:42839/viewも表示できない

[0000]  INFO usb: found: 04b0:0422
[0000]  INFO usb: found: 0cf3:e303
[0000]  WARN mtp: detected more than 1 device, opening the first device: 04b0:0422
[0000]  INFO main: started
[0002]  WARN lv: workerLV: failed to start live view: the camera is not ready
[0003]  WARN lv: frameCaptor: failed to decode header

[puhitaku]

Related branch: fix/d700

[puhitaku]

I got a clue: https://github.com/dukus/digiCamControl/blob/master/CameraControl.Devices/Nikon/NikonD700.cs#L42-L64
There exist some "Live View Modes"

[yanorei32]

Sorry it's my mistake.

[Jokler]

Removing the magic 8 here makes video work for me:

mtplvcap/mtp/server.go

Line 741 in 94f3b4c

err = binary.Read(bytes.NewReader(raw[8:hs]), binary.BigEndian, &lvr)

[puhitaku]

@Jokler Wow, great! I'll add a special path for D700 and release an experimental version later.

[puhitaku]

@Jokler Sorry for keeping you waiting, here's an experimental build that includes the fix you proposed: v1.6.2-rc1.
Could you try this build and see if it works? Thank you!

[Jokler]

If I just try to run that I get this:

[0001] ERROR lv: failed to start live view (InvalidStatus). Investigating the reason...
[0001]  WARN lv: workerLV: failed to start live view, reason: recording destination is the card

I was testing on top of the fix/d700 branch when it was working for me. If I run my working version first and then run v1.6.2-rc1 keeping the camera connected it works too.

Since I wasn't super clear before only the video seems to work though, I'm not sure if the settings in the web interface are supposed to work for all cameras though.

[puhitaku]

Some older models need us to change the "record media" to the RAM. The message looks like it.
I pushed a commit to fix/d700-new and created a corresponding release v1.6.2-rc2.
@Jokler Could you try this again and see if it works without invoking the old fix/d700 build? Thanks for your cooperation!

Extra info of fix/d700: the branch is really old, and had some experimental commits that are also implemented in the master branch in very similar but different lines of code. I just gave it away to rebase and solve conflicts due to too many conflicting diffs.

[Jokler]

Now it works right away! :)

[puhitaku]

I've just released Version 1.6.2 🎉
Now I can close here, the longest issue I've ever had. Thank you very much! @Jokler