/root/bin/webcamd (C270)

#!/bin/bash

########################################################################
### DO NOT EDIT THIS FILE TO CHANGE THE CONFIG!!!                    ###
### ---------------------------------------------------------------- ###
### There is no need to edit this file for changing resolution,      ###
### frame rates or any other mjpg-streamer parameters. Please edit   ###
### /boot/octopi.txt instead - that's what it's there for! You can   ###
### even do this with your Pi powered down by directly accessing the ###
### file when using the SD card as thumb drive in your regular       ###
### computer.                                                        ###
########################################################################

MJPGSTREAMER_HOME=/home/pi/mjpg-streamer
MJPGSTREAMER_INPUT_USB="input_uvc.so"
MJPGSTREAMER_INPUT_RASPICAM="input_raspicam.so"

# init configuration - DO NOT EDIT, USE /boot/octopi.txt INSTEAD!
camera="auto"
camera_usb_options="-r 1280x720 -f 10"
camera_raspi_options="-fps 10"
camera_http_webroot="./www-octopi"
camera_http_options="-n"
additional_brokenfps_usb_devices=()

if [ -e "/boot/octopi.txt" ]; then
    source "/boot/octopi.txt"
fi

brokenfps_usb_devices=("046d:082b" "${additional_brokenfps_usb_devices[@]}")

# cleans up when the script receives a SIGINT or SIGTERM
function cleanup() {
    # make sure that all child processed die when we die
    local pids=$(jobs -pr)
    [ -n "$pids" ] && kill $pids
    exit 0
}

# says goodbye when the script shuts down
function goodbye() {
    # say goodbye
    echo ""
    echo "Goodbye..."
    echo ""
}

# runs MJPG Streamer, using the provided input plugin + configuration
function runMjpgStreamer {
    input=$1
    pushd $MJPGSTREAMER_HOME > /dev/null 2>&1
        echo Running ./mjpg_streamer -o "output_http.so -w $camera_http_webroot$
        LD_LIBRARY_PATH=. ./mjpg_streamer -o "output_http.so -w $camera_http_we$
        wait
    popd > /dev/null 2>&1
}

# starts up the RasPiCam
function startRaspi {
    logger -s "Starting Raspberry Pi camera"
    runMjpgStreamer "$MJPGSTREAMER_INPUT_RASPICAM $camera_raspi_options"
}

# starts up the USB webcam
function startUsb {
    options="$camera_usb_options"
    device="video0"

    extracted_device=`echo $options | sed 's@.*-d /dev/\(video[0-9]+\).*@\1@'`
    if [ "$extracted_device" != "$options" ]
    then
        # the camera options refer to another device, use that for determining $
        device=$extracted_device
    fi

    uevent_file="/sys/class/video4linux/$device/device/uevent"
    if [ -e $uevent_file ]; then
        # let's see what kind of webcam we have here, fetch vid and pid...
        product=`cat $uevent_file | grep PRODUCT | cut -d"=" -f2`
        vid=`echo $product | cut -d"/" -f1`
        pid=`echo $product | cut -d"/" -f2`
        vidpid=`printf "%04x:%04x" "0x$vid" "0x$pid"`

        # ... then look if it is in our list of known broken-fps-devices and if$
        # the -f parameter from the options (if it's in there, else that's just$
        for identifier in ${brokenfps_usb_devices[@]};
        do
            if [ "$vidpid" = "$identifier" ]; then
                echo
                echo "Camera model $vidpid is known to not work with -f paramet$
                echo
                options=`echo $options | sed -e "s/\(\s\+\|^\)-f\s\+[0-9]\+//g"`
            fi
        done
    fi

    logger -s "Starting USB webcam"
    runMjpgStreamer "$MJPGSTREAMER_INPUT_USB $options"
}

# make sure our cleanup function gets called when we receive SIGINT, SIGTERM
trap "cleanup" SIGINT SIGTERM
# say goodbye when we EXIT
trap "goodbye" EXIT

# echo configuration
echo "Starting up webcamDaemon..."
echo ""
echo "--- Configuration: ----------------------------"
echo "camera:        $camera"
echo "usb options:   $camera_usb_options"
echo "raspi options: $camera_raspi_options"
echo "http options:  -w $camera_http_webroot $camera_http_options"
echo "-----------------------------------------------"
echo ""

# we need this to prevent the later calls to vcgencmd from blocking
# I have no idea why, but that's how it is...
vcgencmd version > /dev/null 2>&1

# keep mjpg streamer running if some camera is attached
while true; do
    if [ -e "/dev/video0" ] && { [ "$camera" = "auto" ] || [ "$camera" = "usb" $
        startUsb
        sleep 30 &
        wait
    elif [ "`vcgencmd get_camera`" = "supported=1 detected=1" ] && { [ "$camera$
        startRaspi
        sleep 30 &
        wait
    else
        echo "No camera detected, trying again in two minutes"
        sleep 120 &
        wait
    fi
done