add random option

Adafruit_Video_Looper/model.py

@@ -1,13 +1,16 @@
 # Copyright 2015 Adafruit Industries.
 # Author: Tony DiCola
 # License: GNU GPLv2, see LICENSE.txt
+import random
+
 class Playlist(object):
     """Representation of a playlist of movies."""
 
-    def __init__(self, movies):
+    def __init__(self, movies, is_random):
         """Create a playlist from the provided list of movies."""
         self._movies = movies
         self._index = None
+        self._is_random = is_random
 
     def get_next(self):
         """Get the next movie in the playlist. Will loop to start of playlist
@@ -16,14 +19,19 @@ class Playlist(object):
         # Check if no movies are in the playlist and return nothing.
         if len(self._movies) == 0:
             return None
-        # Start at the first movie and increment through them in order.
-        if self._index is None:
-            self._index = 0
+        # Start Random movie
+        if self._is_random:
+            self._index = random.randrange(0, len(self._movies))
         else:
-            self._index += 1
-        # Wrap around to the start after finishing.
-        if self._index >= len(self._movies):
-            self._index = 0
+            # Start at the first movie and increment through them in order.
+            if self._index is None:
+                self._index = 0
+            else:
+                self._index += 1
+            # Wrap around to the start after finishing.
+            if self._index >= len(self._movies):
+                self._index = 0
+
         return self._movies[self._index]
 
     def length(self):

Adafruit_Video_Looper/video_looper.py

@@ -53,6 +53,7 @@ class VideoLooper(object):
         self._reader = self._load_file_reader()
         # Load other configuration values.
         self._osd = self._config.getboolean('video_looper', 'osd')
+        self._is_random = self._config.getboolean('video_looper', 'is_random')
         # Parse string of 3 comma separated values like "255, 255, 255" into 
         # list of ints for colors.
         self._bgcolor = map(int, self._config.get('video_looper', 'bgcolor') \
@@ -109,7 +110,7 @@ class VideoLooper(object):
                                if re.search('\.{0}$'.format(ex), x, 
                                             flags=re.IGNORECASE)])
         # Create a playlist with the sorted list of movies.
-        return Playlist(sorted(movies))
+        return Playlist(sorted(movies), self._is_random)
 
     def _blank_screen(self):
         """Render a blank screen filled with the background color."""

video_looper.ini

@@ -33,6 +33,9 @@ file_reader = usb_drive
 osd = true
 #osd = false
 
+# To play random playlist.
+is_random = false
+
 # Change the color of the background that is displayed behind movies (only works
 # with omxplayer).  Provide 3 numeric values from 0 to 255 separated by a commma
 # for the red, green, and blue color value.  Default is 0, 0, 0 or black.