# HG changeset patch
# User Jeff Hammel <k0scist@gmail.com>
# Date 1435959181 25200
# Node ID e6fb1a8fe66b2a8d27c766bd0ee84fb98c596aed
# Parent  753b1c2bd64c10c8d03fccf025960b7a2f8d5722
add example for m3u playlists [status: unknown]

diff -r 753b1c2bd64c -r e6fb1a8fe66b python/example/m3u.py
--- /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()