added files

capture_video.sh

@@ -0,0 +1,113 @@
+#!/bin/bash
+
+if [[ "$1" == *help ]]; then
+  echo "Usage: ${0} [-duration 10] [-sound plughw:1,0]"
+  echo "default duration (in seconds) is infinite"
+  echo "default sound is anullsrc i.e. silent sound"
+  exit 1
+fi
+# available options
+
+# 640x480/60
+# 1296x972/43
+# 1920x1080/30
+# 2592x1944/15
+
+#VIDEO_RES_HEIGHT="1080"
+#VIDEO_RES_WIDTH="1920"
+
+#VIDEO_RES_HEIGHT="972"
+#VIDEO_RES_WIDTH="1296"
+
+VIDEO_BITRATE="700000"
+VIDEO_RES_HEIGHT="480"
+VIDEO_RES_WIDTH="640"
+VIDEO_FRAMERATE="10"
+VIDEO_FILE="camera_$(date +%Y-%m-%d_%H-%M-%S).mp4"
+VIDEO_DURATION="1000000000"
+SOUND_SOURCE="anullsrc"
+
+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}" = "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} &
+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} \
+                ${VIDEO_FILE} &
+fi
+
+# Get process ID
+pid=$!
+
+# Wait for process to finish or get terminated signal
+wait || pkill rpicam-vid; exit 130