mt_clockwheel/mt_clockwheel.py

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import argparse
import datetime
import json
import os
# globals
mediadir = "/var/lib/ffplayout/tv-media"
playlistdir = "/var/lib/ffplayout/playlists"
channel = "newellijaytelevision"
verbose = False
from_date = datetime.date.today()
to_date = datetime.date.today()
playlist_duration = 6 * 60 * 60 # six hours, in seconds
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def main():
parse_config()
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for single_date in daterange(from_date, to_date):
if verbose:
print("Processing date", single_date)
build_day(single_date)
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def parse_config():
global mediadir, playlistdir, channel, verbose, from_date, to_date, playlist_duration
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parser = argparse.ArgumentParser(
prog="mt_clockwheel",
description="a simple clockwheel playlist generator for ffplayout",
epilog="brought to you by your friends at Mountain Town Technology and Community Media Network"
)
parser.add_argument('-d', '--directory', dest='mediadir', help='root directory for media library')
parser.add_argument('-p', '--playlists', dest='playlistdir', help='root directory for playlists')
parser.add_argument('-c', '--channel', dest='channel', help='channel name to generate playlists for')
parser.add_argument('-v', '--verbose', action='store_true', help='provide verbose output logging')
parser.add_argument('-f', '--from', dest='from_date', help='first date to generate playlist for')
parser.add_argument('-t', '--to', dest='to_date', help='last date to generate playlist for')
parser.add_argument('-l', '--length', dest='playlist_duration', help='duration (in seconds) for each playlist - if a factor of 24 * 60 * 60 then playlist will be duplicated to fill 24 hours')
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args = parser.parse_args()
if args.verbose:
verbose = True
if args.mediadir:
mediadir = args.mediadir
if args.playlistdir:
playlistdir = args.playlistdir
if args.channel:
channel = args.channel
if args.from_date:
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from_date = datetime.datetime.strptime(args.from_date, "%Y-%m-%d").date()
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if args.to_date:
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to_date = datetime.datetime.strptime(args.to_date, "%Y-%m-%d").date()
if args.playlist_duration:
playlist_duration = args.playlist_duration
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if verbose:
print("Arguments parsed, config:")
print("mediadir:", mediadir)
print("playlistdir:", playlistdir)
print("channel:", channel)
print("from_date:", from_date)
print("to_date:", to_date)
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def build_day(this_date):
d = {} # empty dict that will become our JSON output
d["channel"] = channel
d["date"] = this_date.strftime("%Y-%m-%d")
d["program"] = [] # empty list to populate with programs
total_time = 0
while total_time < playlist_duration:
entry, length = get_playlist_entry()
d["program"].append(entry)
total_time += length
if verbose:
print(' added program:', json.dumps(entry), length)
# TODO: see if playlist_duration is a factor of 24 * 60 * 60 and, if so, duplicate it to fill 24 hours
if verbose:
print("playlist json:", json.dumps(d))
def get_playlist_entry():
entry = {
"in": 0,
"out": 300,
"duration": 300,
"source": "test.mp4"
}
length = entry["duration"]
return entry, length
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# generator function to yield single dates from a date range
def daterange(start_date, end_date):
for n in range(int((end_date - start_date).days) + 1): # adding 1 to make the range inclusive
yield start_date + datetime.timedelta(n)
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if __name__ == "__main__":
main()