You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
2.7 KiB
Python
95 lines
2.7 KiB
Python
import os
|
|
import subprocess
|
|
import shutil
|
|
import signal
|
|
import tempfile
|
|
import time
|
|
|
|
try:
|
|
from pyA20.gpio import gpio, port
|
|
except ImportError:
|
|
from unittest.mock import Mock
|
|
gpio = Mock()
|
|
class Tmpobj():
|
|
pass
|
|
port = Tmpobj()
|
|
port.PG0 = 42
|
|
|
|
from bureau import Bureau, add_api
|
|
|
|
|
|
class Photography(Bureau):
|
|
"""
|
|
The Photography dept. provides document camera and other image
|
|
capture services for other bureaus.
|
|
"""
|
|
|
|
name = "Photography Dept."
|
|
prefix = "PX"
|
|
version = 0
|
|
doc_light_pin = port.PG0
|
|
|
|
def __init__(self):
|
|
Bureau.__init__(self)
|
|
|
|
# set up the gpios for lamp & knobs
|
|
gpio.init()
|
|
gpio.setcfg(self.doc_light_pin, gpio.OUTPUT)
|
|
gpio.output(self.doc_light_pin, gpio.LOW)
|
|
|
|
|
|
def _doc_light_on(self):
|
|
gpio.output(self.doc_light_pin, gpio.HIGH)
|
|
|
|
def _doc_light_off(self):
|
|
gpio.output(self.doc_light_pin, gpio.LOW)
|
|
|
|
@add_api("photo", "Get Document Photo")
|
|
def photo(self):
|
|
"""
|
|
Takes a photograph using the document camera. Returns
|
|
the file name.
|
|
"""
|
|
self._doc_light_on()
|
|
tmpimg = tempfile.NamedTemporaryFile(suffix=".jpg", delete=False)
|
|
tmpimg.close()
|
|
|
|
# TODO: make more reliable
|
|
# TODO: make resolution config variable
|
|
# this is a dirty hack to keep the webcam system calls from hanging
|
|
#cmd1 = "fswebcam --jpeg 95 --no-banner --resolution 320x240 /dev/null"
|
|
#cmd2 = "fswebcam --jpeg 95 --no-banner --resolution 1920x1080 "
|
|
#cmd2 += "-F 2 -S 1" + tmpimg.name
|
|
#cmd1 = "uvccapture -d/dev/video1 -x320 -y240 -o /dev/null"
|
|
#cmd2 = "/usr/local/bin/uvccapture -m -x3264 -y2448 -o" + tmpimg.name
|
|
#subprocess.check_output(cmd1.split())
|
|
modpath = os.path.dirname(__file__)
|
|
mjpg = os.path.join(modpath, "..", "..", "lib", "mjpg-streamer",
|
|
"mjpg-streamer-experimental", "run.sh")
|
|
mjpg_dir = os.path.dirname(mjpg)
|
|
cmd = mjpg.split() + ["-i", "input_uvc.so -r 3264x2448 -n", "-o", "output_file.so -f /tmp/webcam -d 500 -s 2"]
|
|
|
|
print(cmd)
|
|
#proc = subprocess.Popen(cmd, shell=True, env={"LD_LIBRARY_PATH": mjpg_dir})
|
|
proc = subprocess.Popen(cmd)
|
|
time.sleep(2)
|
|
proc.terminate()
|
|
time.sleep(1)
|
|
|
|
# copy last image to the tmpfile
|
|
filelist = os.listdir("/tmp/webcam")
|
|
newest = max(filelist, key=lambda x: os.stat(x).st_mtime)
|
|
shutil.copyfile(newest, tmpimg.name)
|
|
|
|
self._doc_light_off()
|
|
return {"photo": tmpimg.name}
|
|
|
|
|
|
def main():
|
|
px = Photography()
|
|
px.run()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|