Mercurial > hg > config
changeset 752:e6fb1a8fe66b
add example for m3u playlists [status: unknown]
author | Jeff Hammel <k0scist@gmail.com> |
---|---|
date | Fri, 03 Jul 2015 14:33:01 -0700 |
parents | 753b1c2bd64c |
children | 05fef8e5b8a9 |
files | python/example/m3u.py |
diffstat | 1 files changed, 90 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/python/example/m3u.py Fri Jul 03 14:33:01 2015 -0700 @@ -0,0 +1,90 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- + +""" +m3u playlist manipulator + +See: +- https://pypi.python.org/pypi/m3u8 +- http://gonze.com/playlists/playlist-format-survey.html#M3U +- http://www.assistanttools.com/articles/m3u_playlist_format.shtml +- http://en.wikipedia.org/wiki/M3U +- http://tools.ietf.org/html/draft-pantos-http-live-streaming-08#section-3.3.1 +""" + +# imports +import argparse +import m3u8 +import os +import subprocess +import sys + +# module globals +__all__ = ['main', 'M3UParser'] +here = os.path.dirname(os.path.realpath(__file__)) +string = (str, unicode) + +class Playlist(object): + def __init__(self, playlists=(), base_path=None): + self.clips = [] + for playlist in playlists: + assert os.path.isfile(playlist) + _base_path = os.path.abspath(base_path or os.path.dirname(os.path.abspath(playlist))) # TODO: this doesn't fix URLs + content = open(playlist).read() + m3u = m3u8.M3U8(content, base_path=_base_path) + for segment in m3u.segments: + path = segment.uri + title = segment.title + self.clips.append((title, path)) + + def __str__(self): + retval = [] + for title, path in self.clips: + if title: + line = '{} # {}'.format(os.path.abspath(path), title) + else: + line = os.path.abspath(path) + retval.append(line) + return '\n'.join(retval) + +class M3UParser(argparse.ArgumentParser): + """CLI option parser""" + def __init__(self, **kwargs): + kwargs.setdefault('description', __doc__) + argparse.ArgumentParser.__init__(self, **kwargs) + self.add_argument('playlists', metavar='playlist', nargs='+', + help="playlist to parse") + self.add_argument('-b', '--base', dest='base_path', default=os.getcwd(), + help="base path [DEFAULT: %(default)s]") + self.options = None + + def parse_args(self, *args, **kw): + options = argparse.ArgumentParser.parse_args(self, *args, **kw) + self.validate(options) + self.options = options + return options + + def validate(self, options): + """validate options""" + if not os.path.exists(options.base_path): + self.error("Base path '{}' does not exist".format(options.base_path)) + missing = [i for i in options.playlists + if not os.path.exists(i)] + if missing: + self.error("Playlist not found: {}".format(', '.join(missing))) + +def main(args=sys.argv[1:]): + """CLI""" + + # parse command line options + parser = M3UParser() + options = parser.parse_args(args) + + # create playlist + playlist = Playlist(options.playlists, options.base_path) + + # print out some things + print ('{}'.format(playlist)) + +if __name__ == '__main__': + main()