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--- projects:farmrobot:steuerungs-kamera [2021/03/02 11:22]
nicolas-leon
+++ projects:farmrobot:steuerungs-kamera [2021/03/14 17:51] (current)
jonas [Authors]
@@ Line 3: / Line 3: @@
 The FPV Camera serves a video stream as the first person view (FPV) of the Robot. This makes it possible to see the position of the Robot and anything in its way.
-==== Hardware ====
+===== Hardware =====
 A 3d Printed mount for the Bosch40x40 profile was made to stick a polie on it so that the camera gets a better view. The camera is set in a case which was designed with a litte roof to prevent raindrops on the lense.
@@ Line 13: / Line 13: @@
 The following hardware is used for capturing and broadcasting the video stream:
   * Raspberry Pi 4B (8GB) by element14
-  * Raspberry Pi CSI camera NoIR
+  * element14 Raspberry Pi CSI camera v.2 NoIR
   * USB-C cable
   * Heatsinks
@@ Line 20: / Line 20: @@
   * SD-Card
-==== Software ====
+===== Software =====
 The SD-Card has been flashed with an Ubuntu 20.10 arm64-raspi OS.
@@ Line 26: / Line 26: @@
   * user name: pi
   * password: farmrobot
 Its connectable via ethernet or build in wifi module.
@@ Line 36: / Line 37: @@
 ''sudo nano /boot/firmware/config.txt [gpu_mem=512 ; start_x=1]''
-=== Setup ===
+==== Setup ====
+  sudo apt install v4l-utils
+  sudo apt install ffmpeg
+  sudo apt install openssh-server sudo ufw allow ssh ssh pi@farmrobot
+=== ffmpeg stream ===
+Bash script ''stream.sh'':
+  ffmpeg -f v4l2 -input_format h264 -video_size 852x480 -framerate 5 -i /dev/video0>
+  -c:v h264 -preset veryfast -b:v 500k -maxrate 500k -bufsize 10k \
+  -pix_fmt yuv420p -g 10 \
+  -f flv "rtmp://ingest_server/streamkey"
+==== Optional v4l2m2m encoder on arm 64 bit OS ====
 Using v4l2m2m encoder to have arm64 hardware support to efficiently encode a efficient h.265 stream which is sent via rtmp to a server which reencodes to hls to view video stream in a browser.
-ffmpeg is used for data conversion:
+Building ffmpeg from source for the newest release and support for v4l_m2m hardware encoding on 64 bit arm.
-''cd/home/pi/ mkdir -p ~/ffmpeg_sources ~/ffmpeg_build mkdir -p ~/bin''
+''cd/home/pi/ mkdir -p ~/ffmpeg_sources ~/ffmpeg_build ~/bin''
 (installing to /home/pi/bin/ to avoid conflicts with the system package folder)
@@ Line 183: / Line 198: @@
   make install &&
   hash -r
+  source ~/.profile
-  source ~/.profile
+===== Authors =====
-  sudo apt install v4l-utils
+* Jonas Geßmann, Environment & Energy, jonas.gessmann@protonmail.com \\
-  sudo apt install openssh-server sudo ufw allow ssh ssh pi@farmrobot
+* Nicolas Wiehe
-=== ffmpeg stream ===
-Bash script ''stream.sh'':
-  ffmpeg -f v4l2 -input_format h264 -video_size 852x480 -framerate 5 -i /dev/vide>
-  -c:v h264 -preset veryfast -b:v 500k -maxrate 500k -bufsize 10k \
-  -pix_fmt yuv420p -g 10 \
-  -f flv "rtmp://ingest_server/streamkey"

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