first commit

cam1.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+time_UNIX=$(date +%s)
+time_HUMAN=$(date '+video_%d.%m.%y_%H:%M:%S')
+PID_1=$(ffmpeg -nostdin -f v4l2 -framerate 20 -video_size 320x240 -i /dev/video0 -filter_complex "drawtext=fontfile=/usr/share/fonts/truetype/arial.ttf: text='%{pts\:localtime\:$time_UNIX\:%d.%m.%Y %T}': x=180 : y=5 : box=1" -c:a copy $(echo $time_HUMAN)_1.mp4 &> /dev/null) &
+
+sleep 1
+
+ffmpeg_str=$(ps auxw | grep "copy $(echo $time_HUMAN)_1.mp4" | head -n1)
+array=( $ffmpeg_str )
+echo ${array[1]} > /tmp/pid_1
+
+#sleep 10
+
+#kill -SIGINT $(cat /tmp/pid_1)
+#echo Finish record!!!

cam2.sh

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+#!/bin/bash
+
+time_UNIX=$(date +%s)
+time_HUMAN=$(date '+video_%d.%m.%y_%H:%M:%S')
+PID_1=$(ffmpeg -nostdin -f v4l2 -framerate 20 -video_size 320x240 -i /dev/video1 -filter_complex "drawtext=fontfile=/usr/share/fonts/truetype/arial.ttf: text='%{pts\:localtime\:$time_UNIX\:%d.%m.%Y %T}': x=180 : y=5 : box=1" -c:a copy $(echo $time_HUMAN)_2.mp4 &> /dev/null) &
+
+sleep 1
+
+ffmpeg_str=$(ps auxw | grep "copy $(echo $time_HUMAN)_2.mp4" | head -n1)
+array=( $ffmpeg_str )
+echo ${array[1]} > /tmp/pid_2

camera.py

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+#!/usr/bin/python3
+
+import sys
+import time
+import os
+import signal
+
+
+def stop_cams():
+    f = open("/tmp/pid_1", "r")
+    pid1 = int(f.read())
+    f.close()
+    f = open("/tmp/pid_2", "r")
+    pid2 = int(f.read())
+    f.close()
+
+    os.kill(pid1, signal.SIGINT)
+    os.kill(pid2, signal.SIGINT)
+
+def read_old_time():
+    f = open("/tmp/sensor", "r")
+    sensor_time = int(f.read())
+    f.close()
+    return sensor_time
+
+
+def main():
+    record_time = 60
+
+    os.system("echo 0 > /tmp/sensor")
+    #os.system("./read_sensor.py &")
+
+    while (True):
+        time.sleep(1)
+        print (int(time.time()) - read_old_time())
+
+        if ((int(time.time()) - read_old_time()) <= record_time):
+            print("Wait to start camera script.")
+            os.system("./cam1.sh")
+            os.system("./cam2.sh")            
+            time.sleep(10)
+            
+            print("Start min write.")
+            time.sleep(record_time)
+
+            while ((int(time.time()) - read_old_time()) < record_time):
+                t = read_old_time() - (int(time.time()) - record_time)
+                print("Continue record video on camera -> " + str(t) + ".")
+                time.sleep(t)
+                
+            print("Wait to stop camera script.")
+            stop_cams()
+            time.sleep(10)
+            print("Stop camera script.")
+
+if __name__ == '__main__':
+    main()

read_sensor.py

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+#!/usr/bin/python3
+
+import time
+import Adafruit_BBIO.GPIO as GPIO
+# Set up gpio 60 as input
+GPIO.setup("P9_12", GPIO.IN)
+# Sets an event when pin 60 changes to 1
+GPIO.add_event_detect("P9_12", GPIO.RISING)
+i = 0
+
+while True:
+        time.sleep(1)
+        if GPIO.event_detected("P9_12"):
+                f = open('/tmp/sensor', 'w')
+                f.write(str(int(time.time())) + '\n')
+                f.close()
+                i = i + 1
+                print(str(i) + " Event!!!")