Initial

capture_video.sh

@@ -0,0 +1,143 @@
+#!/bin/bash
+
+if [[ "$1" == *help ]]; then
+  echo "Example usage: ${0} [-duration 10] [-sound plughw:1,0]"
+  echo "optional -duration is in seconds"
+  echo "optional -sound values: [none, anullsrc, plughw:1,0]"
+  echo "default -sound is none i.e. no sound"
+  exit 1
+fi
+
+#VIDEO_RES_HEIGHT="1080"
+#VIDEO_RES_WIDTH="1920"
+#VIDEO_FRAMERATE="30"
+
+#VIDEO_RES_HEIGHT="972"
+#VIDEO_RES_WIDTH="1296"
+#VIDEO_FRAMERATE="43"
+
+VIDEO_RES_HEIGHT="480"
+VIDEO_RES_WIDTH="640"
+VIDEO_FRAMERATE="10"
+VIDEO_BITRATE="700000"
+
+VIDEO_DIR="video-storage"
+VIDEO_FILE="${VIDEO_DIR}/camera_$(date +%Y-%m-%d_%H-%M-%S)"
+VIDEO_FILE_SEGMENTED="${VIDEO_DIR}/camera_%Y-%m-%d_%H-%M-%S"
+VIDEO_FILE_EXT="mp4"
+VIDEO_DURATION="1000000000"
+SOUND_SOURCE="none"
+
+LIVE_KEY="LIVE-STREAM-KEY"
+PEERTUBE_LIVE="rtmp://peertube.virtonline.eu:1935/live/"
+
+mkdir -p $VIDEO_DIR
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -sound)
+      if [ -n "$2" ]; then
+        SOUND_SOURCE="$2"
+        shift
+      fi
+      ;;
+    -duration)
+     if [ -n "$2" ]; then
+        VIDEO_DURATION="$2"
+        shift
+     fi
+      ;;
+    *)
+     echo "Unknown parameter $1"
+     exit 1
+  esac
+  shift
+done
+
+# Set up a trap to check for SIGINT
+trap "pkill rpicam-vid; exit 130" SIGINT
+
+# Start the pipeline
+rpicam-vid --inline \
+		-n \
+                -t 0 \
+		--width ${VIDEO_RES_WIDTH} \
+		--height ${VIDEO_RES_HEIGHT} \
+		--nopreview \
+		--exposure long \
+		--sharpness 1.2 \
+		--contrast 1.4 \
+		--brightness 0.2 \
+		--saturation 1.0 \
+		--awb auto \
+		--denoise auto \
+		--rotation 0 \
+		--autofocus-mode auto \
+		--codec h264 \
+		--framerate ${VIDEO_FRAMERATE} \
+		-b ${VIDEO_BITRATE} \
+		-o - | \
+
+if [ "${SOUND_SOURCE}" = "none" ]; then
+    # ffmpeg params without audio
+    ffmpeg -hide_banner \
+                -thread_queue_size 1024 \
+		-t ${VIDEO_DURATION} \
+                -i pipe:0 \
+                -c:v copy \
+		-f tee -map 0:0 -flags +global_header -flvflags no_duration_filesize \
+		"[f=segment \
+			:segment_time=3600 \
+			:reset_timestamps=1 \
+			:strftime=1 \
+			:segment_format=mp4 \
+			:onfail=ignore \
+		]${VIDEO_FILE_SEGMENTED}.${VIDEO_FILE_EXT} \
+		| \
+		[f=fifo \
+			:fifo_format=flv \
+			:drop_pkts_on_overflow=1 \
+			:attempt_recovery=1 \
+			:recovery_wait_time=1 \
+			:use_wallclock_as_timestamps=1 \
+		]${PEERTUBE_LIVE}${LIVE_KEY}" \
+		&
+elif [ "${SOUND_SOURCE}" = "anullsrc" ]; then
+    # ffmpeg params with silent audio
+    ffmpeg -hide_banner \
+                -f lavfi \
+                -i anullsrc=channel_layout=stereo:sample_rate=44100 \
+                -thread_queue_size 1024 \
+                -use_wallclock_as_timestamps 1 \
+                -i pipe:0 \
+                -c:v copy \
+                -c:a aac \
+                -preset fast \
+                -strict experimental \
+                -f mp4 \
+                -t ${VIDEO_DURATION} \
+                ${VIDEO_FILE}.${VIDEO_FILE_EXT} &
+else
+    # ffmpeg params with audio
+    ffmpeg -hide_banner \
+		-f alsa \
+                -thread_queue_size 1024 \
+                -ac 2 \
+                -i ${SOUND_SOURCE} \
+                -thread_queue_size 1024 \
+                -use_wallclock_as_timestamps 1 \
+                -i pipe:0 \
+                -c:v copy \
+                -c:a aac \
+		-b:a 32k \
+                -ar 44100 \
+                -f mp4 \
+                -t ${VIDEO_DURATION} \
+                ${VIDEO_FILE}.${VIDEO_FILE_EXT} &
+fi
+
+# Get process ID
+pid=$!
+
+# Wait for process to finish or get terminated signal
+wait || pkill rpicam-vid; exit 130

webcam-cleanup.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=Webcam Cleanup service
+Requires=docker.service
+After=docker.service
+DefaultDependencies=no
+
+[Service]
+Type=simple
+User=pi
+Group=pi
+
+Environment="HOME=/home/pi"
+EnvironmentFile=/etc/default/webcam-streamer
+WorkingDirectory=/home/pi
+
+# The corresponding .timer will invoke this service every hour.
+
+# Delete video files older then e.q. 14 days
+ExecStart=/usr/bin/find ${DIR} -name '${FILENAME_PREFIX}*.${FILENAME_EXT}' -mtime +${REMOVE_OLDER_THEN_DAYS} -exec rm -vf {} \;
+
+[Install]
+WantedBy=multi-user.target

webcam-cleanup.timer

@@ -0,0 +1,14 @@
+[Unit]
+Description=Reloads webcam-cleanup periodically to delete old video files
+
+[Timer]
+Unit=webcam-cleanup.service
+
+# Run on every hour of every day
+OnCalendar=*-*-* *:00:00
+
+# Do not execute job if it missed a run due to machine being off
+Persistent=false
+
+[Install]
+WantedBy=timers.target

webcam-streamer

@@ -0,0 +1,15 @@
+LIVE_KEY="LIVE-STREAM-KEY"
+PEERTUBE_LIVE="rtmp://peertube.virtonline.eu:1935/live/"
+
+BITRATE="700000"
+RES_HEIGHT="480"
+RES_WIDTH="640"
+FRAMERATE="10"
+
+DIR="/home/pi/video-storage"
+FILENAME_PREFIX="camera_"
+FILENAME_SEGMENT_PATTERN="%Y-%m-%d_%H-%M-%S"
+FILENAME_EXT="mp4"
+SEGMENT_DURATION=3600
+
+REMOVE_OLDER_THEN_DAYS=14

webcam-streamer.service

@@ -0,0 +1,61 @@
+[Unit]
+Description=Webcam Streamer service
+Requires=network-online.target
+After=network-online.target
+DefaultDependencies=no
+
+[Service]
+Type=simple
+
+User=pi
+Group=pi
+
+Environment="HOME=/home/pi"
+EnvironmentFile=/etc/default/webcam-streamer
+
+WorkingDirectory=/home/pi
+
+ExecStartPre=-/usr/bin/env sh -c 'killall rpicam-vid 2>/dev/null || true'
+ExecStartPre=-/usr/bin/env sh -c 'mkdir -p $DIR'
+
+ExecStart=/bin/bash -c 'rpicam-vid --inline \
+		-t 0 \
+		--width ${RES_WIDTH} \
+		--height ${RES_HEIGHT} \
+		--nopreview \
+		--awb auto \
+		--denoise auto \
+		--rotation 0 \
+		--autofocus-mode auto \
+		--codec h264 \
+		-b ${BITRATE} \
+		-o - | \
+    ffmpeg -hide_banner \
+                -thread_queue_size 1024 \
+                -i pipe:0 \
+                -c:v copy \
+                -f tee -map 0:0 -flags +global_header -flvflags no_duration_filesize \
+                "[f=segment \
+                        :segment_format=mp4 \
+                        :segment_time=${SEGMENT_DURATION} \
+                        :reset_timestamps=1 \
+                        :strftime=1 \
+                        :onfail=ignore \
+                ]${DIR}/${FILENAME_PREFIX}${FILENAME_SEGMENT_PATTERN}.${FILENAME_EXT} \
+                | \
+                [f=fifo \
+                        :fifo_format=flv \
+                        :drop_pkts_on_overflow=1 \
+                        :attempt_recovery=1 \
+                        :recovery_wait_time=1 \
+                        :use_wallclock_as_timestamps=1 \
+                ]${PEERTUBE_LIVE}${LIVE_KEY}"'
+
+ExecStop=-/usr/bin/env sh -c 'killall rpicam-vid 2>/dev/null || true'
+
+Restart=always
+RestartSec=3
+SyslogIdentifier=webcam-streamer
+
+[Install]
+WantedBy=multi-user.target