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fuji-cam-wifi-tool

Trying to reverse-engineer the wifi remote control protocol used by Fuji X series cameras

Build instructions

Mac OS X, Linux, Windows

mkdir fuji-tool
cd fuji-tool
git clone https://github.com/hkr/fuji-cam-wifi-tool
git -C fuji-cam-wifi-tool submodule update --init --recursive
mkdir build
cd build
cmake ../fuji-cam-wifi-tool
cmake --build .

To build with OpenCV:

cmake ../fuji-cam-wifi-tool -DWITH_OPENCV=yes
cmake --build .

Run the tool

The tool fuji_cam_wifi_tool is an interactive shell (based on linenoise) that can be used to send commands to the camera. At this time it is very limited and mostly undocumented. Supported commands are connect, shutter, stream, info, set_iso, aperture, white_balance, shutter_speed. I suggest to look at the code.

Mac OS X:

./tool/fuji_cam_wifi_tool

Steps to connect the tool to the camera:

  • Press the "Wireless Communication" button on the X-T10
  • Connect your computer to the camera's Wifi Access Point (in ad-hoc mode)
  • Send the connect command.
  • Press the OK (Change) button (only needed the first time, fuji_cam_wifi_tool connects as "HackedClient", see main.cpp)
  • On success the tool should print a lot of debug data and the current camera settings
  • Try taking a picture by sending "shutter"

Using live preview as a linux webcam

modprobe v4l2loopback

See what device this created eg /dev/video2

Then running the command (having built with opencv):

./tool/fuji_cam_wifi_tool
fcwt> connect
fcwt> stream_cv /dev/video2

Opening up the v4l device in chrome or vlc should now show the same output, but without any focus overlays:

vlc v4l2:///dev/video2

Wireshark debugging

To dump control messages (excluding info) set the following wireshark filter:

ip.dst == 192.168.0.1 && len(data.data) > 0 && !(data.data[6:2] == 15:10)

To capture the jpeg start of all streamed images use:

ip.src == 192.168.0.1 && tcp.port == 55742 && data.data[18:2] == ff:d8

protocol is to look under data section of wireshark, first 4 bytes are the size, next 2 bytes are 01 00, then comes 2 byte command (reversed, network format ) eg 15 10 = 0x1015 = single_part message.