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YITechnology / YIOpenAPI

YI Open API provides mobile SDKs and reference designs for software developers and hardware makers to build cool apps and products with YI 4K Action Cameras
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Yi 4k+ Cameras Synchronisation Issue #44

Open LoomyBear opened 7 years ago

LoomyBear commented 7 years ago

Hi,

I'm trying to follow this tutorial on syncing Yi 4k+ cameras together. http://open.yitechnology.com/vrcamera.html And I'm having problems follow this tutorial to the its end.

Here's what I did:

  1. Downloaded firmware_first.bin and firmware_others.bin from this repository https://github.com/YITechnology/YIOpenAPI/tree/master/vr/bin/en-us *
  2. Copied the firmware files to SD cards.
  3. Renamed both files to firmware.bin
  4. Inserted the SD cards into the corresponding cameras
  5. Turn the cameras on.
  6. I was asked if I wanna UPDATE THE FIRMWARE [ OK / CANCEL ]
  7. Tapped OK
  8. Get FIRMWARE VERIFICATION FAILED message from both cameras

I suppose those particular firmwares were compiled strictly for 4k cameras and won't work on 4k+ models.

Would you please tell me how should I proceed with this issue?

Thank you!!

Steve132 commented 7 years ago

This issue also effects me

Water-bamboo commented 6 years ago

Not support on 4K+, please don't try the 4K firmware.

Steve132 commented 6 years ago

What does this mean?

On Fri, Aug 4, 2017 at 11:25 PM, Water-bamboo notifications@github.com wrote:

Not support on 4K+, please don't try the 4K firmware.

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/YITechnology/YIOpenAPI/issues/44#issuecomment-320392402, or mute the thread https://github.com/notifications/unsubscribe-auth/AA1kMGHwpmdGfIX5kRusWmRfJ5r2d8_8ks5sU-CNgaJpZM4NN-HG .

archenroot commented 6 years ago

I didn't notice this issue already here, I also bought 2 4k+ cameras and was interested in GENLOCK sync. Unfortunately this capability is not available for 4k+ models, only 4k supports GENLOCK mechanism.

I provided a hint for doing this via NTP sync and synchronization in the software (custom written) based on frame timestamp. Question is if the timestamp is available for streaming and not only storing. I will test during this weekend....

On the other hand, if you are interested in syncing the camera (4k+) for recording, there are some hacks available if I am not wrong again with NTP sync and then executing "start recording" command from camera linux shell accessible via telnet protocol.

NOTE: I didn't tested yet all possibilities, but will report some results as I am ordered these cameras for stereo vision and now got stuck :-))), but there is always some way....

noemis84 commented 6 years ago

I'm searching for the same solution: sync two YI 4k+ for a simple stereo recording. Has someone maybe some new informations?

periox commented 5 years ago

It seems Yi team left the idea of genlock for their cameras, which is a shame as more of us needs to sync the cameras. The solution may be on the hardware level - and here is an example described on the cheap Yi Discovery camera synchronization. http://3djournal.com/3d-photo-and-3d-video-cheap-with-yi-discovery-cameras-1-133 It is not the most elegant solution in the world (a software solution would be much better), but it seems it works and can help someone.