libretime/python_apps/show-recorder/recorder.py

172 lines
4.5 KiB
Python

#!/usr/local/bin/python
import urllib
import logging
import logging.config
import json
import time
import datetime
import os
import sys
from configobj import ConfigObj
from poster.encode import multipart_encode
from poster.streaminghttp import register_openers
import urllib2
from subprocess import call
from threading import Thread
# For RabbitMQ
from kombu.connection import BrokerConnection
from kombu.messaging import Exchange, Queue, Consumer, Producer
from api_clients import api_client
# configure logging
try:
logging.config.fileConfig("logging.cfg")
except Exception, e:
print 'Error configuring logging: ', e
sys.exit()
# loading config file
try:
config = ConfigObj('/etc/airtime/recorder.cfg')
except Exception, e:
print 'Error loading config file: ', e
sys.exit()
def getDateTimeObj(time):
timeinfo = time.split(" ")
date = timeinfo[0].split("-")
time = timeinfo[1].split(":")
return datetime.datetime(int(date[0]), int(date[1]), int(date[2]), int(time[0]), int(time[1]), int(time[2]))
class ShowRecorder(Thread):
def __init__ (self, show_instance, filelength, show_name, start_time, filetype):
Thread.__init__(self)
self.api_client = api_client.api_client_factory(config)
self.filelength = filelength
self.show_name = show_name
self.start_time = start_time
self.filetype = filetype
self.show_instance = show_instance
def record_show(self):
length = str(self.filelength)+".0"
filename = self.show_name+" "+self.start_time
filename = filename.replace(" ", "-")
filepath = "%s%s.%s" % (config["base_recorded_files"], filename, self.filetype)
command = "ecasound -i alsa -o %s -t:%s" % (filepath, length)
#-ge:0.1,0.1,0,-1
args = command.split(" ")
print "starting record"
code = call(args)
print "finishing record, return code %s" % (code)
return code, filepath
def upload_file(self, filepath):
filename = os.path.split(filepath)[1]
# Register the streaming http handlers with urllib2
register_openers()
# headers contains the necessary Content-Type and Content-Length
# datagen is a generator object that yields the encoded parameters
datagen, headers = multipart_encode({"file": open(filepath, "rb"), 'name': filename, 'show_instance': self.show_instance})
self.api_client.upload_recorded_show(datagen, headers)
def run(self):
code, filepath = self.record_show()
if code == 0:
self.upload_file(filepath)
else:
print "problem recording show"
class Record():
def __init__(self):
self.api_client = api_client.api_client_factory(config)
self.shows_to_record = {}
def process_shows(self, shows):
self.shows_to_record = {}
for show in shows:
show_starts = getDateTimeObj(show[u'starts'])
show_end = getDateTimeObj(show[u'ends'])
time_delta = show_end - show_starts
self.shows_to_record[show[u'starts']] = [time_delta, show[u'instance_id'], show[u'name']]
def check_record(self):
tnow = datetime.datetime.now()
sorted_show_keys = sorted(self.shows_to_record.keys())
start_time = sorted_show_keys[0]
next_show = getDateTimeObj(start_time)
print next_show
print tnow
delta = next_show - tnow
min_delta = datetime.timedelta(seconds=60)
if delta <= min_delta:
print "sleeping %s seconds until show" % (delta.seconds)
time.sleep(delta.seconds)
show_length = self.shows_to_record[start_time][0]
show_instance = self.shows_to_record[start_time][1]
show_name = self.shows_to_record[start_time][2]
show = ShowRecorder(show_instance, show_length.seconds, show_name, start_time, filetype="mp3", )
show.start()
#remove show from shows to record.
del self.shows_to_record[start_time]
def get_shows(self):
shows = self.api_client.get_shows_to_record()
if shows is not None:
shows = shows[u'shows']
else:
shows = []
if len(shows):
self.process_shows(shows)
self.check_record()
if __name__ == '__main__':
recorder = Record()
while True:
recorder.get_shows()
time.sleep(5)