working FolderPlayer class

encapsulates vlc lib. load_folder creates a MediaListPlayer which is then used to play / pause etc

folderplayer.py

@@ -0,0 +1,62 @@
+"""
+lecture d'un dossier de fichiers audio / mp3 via VLC
+"""
+
+import os, random, vlc, time
+
+class FolderPlayer:
+
+    def __init__(self, path=None, randomize=True):
+        self.vlc = vlc.Instance()
+        self.list_player = self.vlc.media_list_player_new()
+        if path:
+            self.path = path
+            self.load_folder(path, randomize)
+
+    def load_folder(self, folder_path, randomize=False):
+        files = [ os.path.join(folder_path, f) for f in os.listdir(folder_path) if os.path.isfile(os.path.join(folder_path,f)) and f.endswith('.mp3') ]
+        # print(f"found {len(files)} files in {folder_path}")
+        self.media_list = self.vlc.media_list_new()
+        if randomize:
+            random.shuffle(files)
+        for f in files:
+            self.media_list.add_media(f)
+        self.list_player.set_media_list(self.media_list)
+        print(f"playlist built with {self.media_list.count()} media")
+
+    def play(self):
+        self.list_player.play()
+        self.display_title()
+
+    def pause(self):
+        self.list_player.pause()
+
+    def next(self):
+        self.list_player.next()
+        self.display_title()
+
+    def previous(self):
+        self.list_player.previous()
+        self.display_title()
+
+    def stop(self):
+        self.list_player.stop()
+
+    def display_title(self):
+        player = self.list_player.get_media_player()
+        media = player.get_media()
+        print(f"playing {media.get_mrl()}")
+
+    def get_volume(self):
+        return self.list_player.get_media_player().audio_get_volume()
+
+    def set_volume(self, volume):
+        if volume >= 0 and volume <= 100:
+            print(f"setting volume to {volume}")
+            self.list_player.get_media_player().audio_set_volume(volume)
+
+    def volume_up(self, step=10):
+        self.set_volume(self.get_volume() + step)
+
+    def volume_down(self, step=10):
+        self.set_volume(self.get_volume() - step)