120 lines
3.3 KiB
Bash
Executable File
120 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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#### Hardware Handling library
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#### crowsnest - A webcam Service for multiple Cams and Stream Services.
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####
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#### Written by Stephan Wendel aka KwadFan <me@stephanwe.de>
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#### Copyright 2021
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#### https://github.com/mainsail-crew/crowsnest
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####
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#### This File is distributed under GPLv3
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####
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# shellcheck enable=require-variable-braces
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# Exit upon Errors
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set -Ee
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### Detect Hardware
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detect_avail_cams() {
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local avail realpath
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avail="$(find /dev/v4l/by-id/ -iname "*index0" 2> /dev/null)"
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count="$(echo "${avail}" | wc -l)"
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if [[ -d "/dev/v4l/by-id/" ]] &&
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[[ -n "${avail}" ]]; then
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log_msg "INFO: Found ${count} available v4l2 (UVC) camera(s)"
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echo "${avail}" | while read -r v4l; do
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realpath=$(readlink -e "${v4l}")
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log_msg "${v4l} -> ${realpath}"
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if [[ "${CROWSNEST_LOG_LEVEL}" != "quiet" ]]; then
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list_cam_formats "${v4l}"
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list_cam_v4l2ctrls "${v4l}"
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fi
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done
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else
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log_msg "INFO: No usable Cameras found."
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fi
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}
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## Used for "verbose" and "debug" logging in logging.sh
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list_cam_formats() {
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local device prefix
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device="${1}"
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prefix="$(date +'[%D %T]') crowsnest:"
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log_msg "Supported Formats:"
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while read -r i; do
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printf "%s\t\t%s\n" "${prefix}" "${i}" >> "${CROWSNEST_LOG_PATH}"
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done < <(v4l2-ctl -d "${device}" --list-formats-ext | sed '1,3d')
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}
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list_cam_v4l2ctrls() {
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local device prefix
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device="${1}"
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prefix="$(date +'[%D %T]') crowsnest:"
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log_msg "Supported Controls:"
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while read -r i; do
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printf "%s\t\t%s\n" "${prefix}" "${i}" >> "${CROWSNEST_LOG_PATH}"
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done < <(v4l2-ctl -d "${device}" --list-ctrls-menus)
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}
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## Determine connected libcamera (CSI) device
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detect_libcamera() {
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local avail
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if [[ "$(is_raspberry_pi)" = "1" ]] &&
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[[ -x "$(command -v libcamera-hello)" ]]; then
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avail="$(libcamera-hello --list-cameras | awk 'NR==1 {print $1}')"
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if [[ "${avail}" = "Available" ]]; then
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echo "1"
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else
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echo "0"
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fi
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fi
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}
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## Spit /base/soc path for libcamera device
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get_libcamera_path() {
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if [[ "$(is_raspberry_pi)" = "1" ]] &&
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[[ -x "$(command -v libcamera-hello)" ]]; then
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libcamera-hello --list-cameras | sed '1,2d' \
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| grep "\(/base/*\)" | cut -d"(" -f2 | tr -d '$)'
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fi
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}
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## Determine if cam has H.264 Hardware encoder
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## call detect_h264 <nameornumber> ex.: detect_h264 foobar
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## returns 1 = true / 0 = false ( numbers are strings! not int!)
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detect_h264() {
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local dev
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dev="$(get_param "cam ${1}" device)"
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v4l2-ctl -d "${dev}" --list-formats-ext | grep -c "[hH]264"
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}
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## Determine if cam has MJPEG Hardware encoder
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## call detect_mjpeg <nameornumber> ex.: detect_mjpeg foobar
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## returns 1 = true / 0 = false ( numbers are strings! not int!)
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detect_mjpeg() {
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local dev
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dev="$(get_param "cam ${1}" device)"
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v4l2-ctl -d "${dev}" --list-formats-ext | grep -c "Motion-JPEG, compressed"
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}
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## Check if device is raspberry sbc
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is_raspberry_pi() {
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if [[ -f /proc/device-tree/model ]] &&
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grep -q "Raspberry" /proc/device-tree/model; then
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echo "1"
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else
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echo "0"
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fi
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}
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is_ubuntu_arm() {
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if [[ "$(is_raspberry_pi)" = "1" ]] &&
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grep -q "ubuntu" /etc/os-release; then
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echo "1"
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else
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echo "0"
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fi
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}
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