m3u-logo-matcher/__main__.py
2024-01-14 20:29:27 +01:00

149 lines
4.6 KiB
Python

from argparse import ArgumentParser
from difflib import SequenceMatcher
import re
from ipytv import playlist as tv_playlist
from pathlib import Path
import urllib.request
import urllib.error
verbose = False
def debug(message: str):
global verbose
if verbose:
print("[M3U-LOGO-MATCHER:DEBUG] " + message)
def cutoff_extension(path: str):
return path[:path.rfind(".")]
def parse_arguments():
parser = ArgumentParser()
parser.add_argument("-u", "--url", dest="url", help="URL to logos", required=True)
parser.add_argument("-m", "--m3u", dest="m3u", help="Path to m3u file", required=True, type=Path)
parser.add_argument("-r", "--ratio", dest="ratio", help="Similarity ratio", default=0.6, type=float)
parser.add_argument("-v", "--verbose", dest="verbose", help="Verbose output", action="store_true")
return parser.parse_args()
def fetch_logos(base_logo_url: str):
debug(f"Fetching logos from {base_logo_url}...")
with urllib.request.urlopen(base_logo_url) as url:
data = url.read().decode()
# Get logo names
for logo in re.findall(r'<a href="(.+\..+)">(.*\..+)</a>', data):
logo_url, channel_name = logo
yield f"{base_logo_url}/{logo_url}", cutoff_extension(channel_name)
def process(arguments):
debug("Processing...")
logos = list(fetch_logos(arguments.url))
if len(logos) == 0:
print("No logos found! Ensure that the URL is correct and it returns a list of logo resources.")
return
if arguments.ratio > 1 or arguments.ratio < 0:
print("Ratio must be between 0 and 1.")
return
# Get m3u data
debug(f"Loading m3u file {arguments.m3u}...")
playlist = tv_playlist.loadf(str(arguments.m3u))
debug(f"Loaded {playlist.length()} channels")
matched_logos = list(match_similar_logos(
logos = logos,
channels = get_channels(playlist),
ratio = arguments.ratio
))
debug(f"Matched {len(matched_logos)}/{playlist.length()} logos.")
debug(f"Missing logos: {playlist.length() - len(matched_logos)}")
replace_logos(playlist, matched_logos)
debug("Logos replaced.")
debug("Saving result...")
save_result(arguments.m3u, playlist)
def replace_logos(playlist: tv_playlist.M3UPlaylist, matched_logos: list[tuple[str, str]]):
debug("Replacing logos...")
for matched_channel, logo in matched_logos:
debug(f"Replacing logo for {matched_channel}...")
channels = playlist.get_channels()
channel: tv_playlist.IPTVChannel = None
channel_index: int = -1
for i, c in enumerate(channels):
if c.name == matched_channel:
channel = c
channel_index = i
break
if channel is None:
# Something weird happened.
print(f"Channel {matched_channel} not found! How did this happen?")
continue
channel_copy = channel.copy()
channel_copy.attributes["tvg-logo"] = logo
playlist.update_channel(channel_index, channel_copy)
def save_result(
input_path: str,
playlist: tv_playlist.M3UPlaylist
):
with open(input_path, "w+") as f:
f.write(playlist.to_m3u_plus_playlist())
print("File overwritten.")
print("Thank you for using this script!")
def match_similar_logos(
logos: list[tuple[str, str]],
channels: list[str],
ratio: float = 0.6
):
debug("Matching logos...")
best_score = {}
best_match = {}
for channel in channels:
debug(f"Matching channel {channel}...")
for logo in logos:
debug(f"Trying logo {logo[0]}...")
logo_url, channel_name = logo
score = get_similarity_ratio(channel, channel_name)
if score > best_score.get(channel, 0) and score > ratio:
best_score[channel] = score
best_match[channel] = logo_url
else:
for channel, logo_url in best_match.items():
debug(f"Matched {channel} with {logo_url} (ratio: {best_score[channel]})")
yield (channel, logo_url)
def get_channels(playlist: tv_playlist.M3UPlaylist):
for channel in playlist:
yield channel.name
def get_similarity_ratio(a: str, b: str):
return SequenceMatcher(None, a.lower(), b.lower()).ratio()
if __name__ == "__main__":
debug("Starting...")
arguments = parse_arguments()
verbose = arguments.verbose
debug("Parsed all arguments")
process(arguments)