feat: add legacy cam support

libs/hwhandler.sh

@@ -84,6 +84,23 @@ get_libcamera_path() {
     fi
 }
 
+# Determine connected "legacy" device
+function detect_legacy {
+    local avail
+    if [[ -f /proc/device-tree/model ]] &&
+    grep -q "Raspberry" /proc/device-tree/model; then
+        avail="$(vcgencmd get_camera | awk -F '=' '{ print $3 }' | cut -d',' -f1)"
+    else
+        avail="0"
+    fi
+    echo "${avail}"
+}
+
+function dev_is_legacy {
+    v4l2-ctl --list-devices |  grep -A1 -e 'mmal' | \
+    awk 'NR==2 {print $1}'
+}
+
 ## Determine if cam has H.264 Hardware encoder
 ## call detect_h264 <nameornumber> ex.: detect_h264 foobar
 ## returns 1 = true / 0 = false ( numbers are strings! not int!)

libs/logging.sh

@@ -90,7 +90,7 @@ function print_cfg {
 function print_cams {
     local total v4l
     v4l="$(find /dev/v4l/by-id/ -iname "*index0" 2> /dev/null | wc -l)"
-    total="$((v4l+($(detect_libcamera))))"
+    total="$((v4l+($(detect_libcamera))+($(detect_legacy))))"
     if [ "${total}" -eq 0 ]; then
         log_msg "ERROR: No usable Devices Found. Stopping $(basename "${0}")."
         exit 1
@@ -100,6 +100,15 @@ function print_cams {
     if [[ "$(detect_libcamera)" -ne 0 ]]; then
         log_msg "Detected 'libcamera' device -> $(get_libcamera_path)"
     fi
+    if [[ "$(detect_legacy)" -ne 0 ]]; then
+        raspicam="$(v4l2-ctl --list-devices |  grep -A1 -e 'mmal' | \
+        awk 'NR==2 {print $1}')"
+        log_msg "Detected 'Raspicam' Device -> ${raspicam}"
+        if [[ ! "${CROWSNEST_LOG_LEVEL}" = "quiet" ]]; then
+            list_cam_formats "${raspicam}"
+            list_cam_v4l2ctrls "${raspicam}"
+        fi
+    fi
     if [[ -d "/dev/v4l/by-id/" ]]; then
         detect_avail_cams
     fi

libs/ustreamer.sh

@@ -23,6 +23,7 @@ run_mjpg() {
     for instance in ${cams} ; do
         run_ustreamer "${instance}" &
     done
+    blockyfix
     brokenfocus
     return
 }
@@ -45,12 +46,17 @@ run_ustreamer() {
         start_param=( --host 127.0.0.1 -p "${pt}" )
     fi
 
-    # Add device
-    start_param+=( -d "${dev}" --device-timeout=2 )
+    #Raspicam Workaround
+    if [[ "${dev}" = "$(dev_is_legacy)" ]]; then
+        start_param+=( -m MJPEG --device-timeout=5 --buffers=3 )
+    else
+        # Add device
+        start_param+=( -d "${dev}" --device-timeout=2 )
 
-    # Use MJPEG Hardware encoder if possible
-    if [ "$(detect_mjpeg "${cam_sec}")" = "1" ]; then
-        start_param+=( -m MJPEG --encoder=HW )
+        # Use MJPEG Hardware encoder if possible
+        if [ "$(detect_mjpeg "${cam_sec}")" = "1" ]; then
+            start_param+=( -m MJPEG --encoder=HW )
+        fi
     fi
 
     # set max framerate

libs/v4l2_control.sh

@@ -136,3 +136,30 @@ function brokenfocus {
 main
 
 }
+
+# This function is to set bitrate on raspicams.
+# If raspicams set to variable bitrate, they tend to show
+# a "block-like" view after reboots
+# To prevent that blockyfix should apply constant bitrate befor start of ustreamer
+# See https://github.com/mainsail-crew/crowsnest/issues/33
+function blockyfix {
+    local dev v4l2ctl
+
+    # call set_bitrate <device>
+    function set_bitrate {
+        v4l2-ctl -d "${1}" -c video_bitrate_mode=1 2> /dev/null
+        v4l2-ctl -d "${1}" -c video_bitrate=15000000 2> /dev/null
+    }
+
+    for cam in $(configured_cams); do
+        dev="$(get_param "cam ${cam}" device)"
+        v4l2ctl="$(get_param "cam ${cam}" v4l2ctl)"
+        if [ "${dev}" = "$(dev_is_legacy)" ]; then
+            if [ -z "${v4l2ctl}" ] ||
+            [ "$(grep -c "video_bitrate" <<< "${v4l2ctl}")" == "0" ]; then
+                set_bitrate "${dev}"
+                blockyfix_msg_1
+            fi
+        fi
+    done
+}