A simple wrapper around Bambu Studio's libBambuSource.so prebuilt to access
the camera frames from a 3D printer in LAN mode and, encode it, and serve a
video stream at a given port.
Usage:
$ bambucam <device-ip> <device-id> <passcode> <port>
Where:
<device-ip>: Bambu printer local IP, e.g.192.168.0.200<device-id>: Bambu printer ID (serial number), e.g.0123456789ABCDE<passcode>: Bambu printer LAN mode pass code, e.g.12345678<port>: Port on which to serve the video stream
Bambu Cam supports multiple video stream types depending on the SERVER build
flag. The supported video stream types are:
HTTP: Multipart JPEG stream using microhttpdRTP: RTP video stream using FFmpeg
Prepare the necessary ffmpeg and libmicrohttpd dependencies:
$ sudo apt install \
libavcodec-dev \
libavformat-dev \
libavutil-dev \
libjpeg-dev \
libmicrohttpd-dev
Assumes you have Bambu Studio installed and ran at least once to download the expected plugins.
$ make -j
Use PLUGIN_PATH to specify a different path if the plugins are installed in a
directory other than the default ~/.config/BambuStudio/plugins.
$ make PLUGIN_PATH=/path/to/bambu/plugins -j
Use DEBUG to add more verbose logging and build debug symbols.
$ make DEBUG=1 -j
Use BAMBU_FAKE to use a fake camera implementation to test without an actual
printer hardware. All device arguments are obviously ignored in this mode.
$ make BAMBU_FAKE=1 -j
Use SERVER to select the video streaming server implementation. More details
below.
$ make SERVER=RTP -j
$ make SERVER=HTTP -j
The HTTP server uses multipart/x-mixed-replace to continuous send JPEG files
in a never-ending response.
Build Bambu Cam with SERVER=HTTP and you can view the video stream on any web
browser by navigating to http://localhost:<port>/.
$ make SERVER=RTP -j
The RTP stream uses the Pro-MPEG Code of Practice #3 Release 2 FEC protocol, which is "a 2D parity-check forward error correction mechanism for MPEG-2 Transport Streams sent over RTP." Read more about the protocol in the FFmpeg and Wireshark documention.
VLC supports this protocol and explains why we can use the rtp:// path
without serving any SDP nor RTSP information.
Build Bambu Cam with SERVER=RTP and you can view the RTP stream in VLC:
$ vlc rtp://localhost/<port>
