Add split-songs

Author: setrofim

split-songs

@@ -0,0 +1,67 @@
+#!/bin/env python
+# Split songs in a single mp3 into separate files based on a list file  in the form
+#    HH:SS Song Name 1
+#    HH:SS Song Name 2
+#    ...
+
+import sys
+import os
+
+
+def adjust_start(ints):
+    i = len(ints)-1
+    while i >= 0:
+        if ints[i] != 59:
+            ints[i] += 1
+            return ints
+        ints[i] = 00
+    else:
+        return [0]*len(ints)
+
+def fixup_time(text, adjust=False):
+    parts = text.split(':')
+    ints = [int(p) for p in parts]
+    if adjust:
+        ints = adjust_start(ints)
+    parts = ['{:02}'.format(int(p)) for p in ints]
+    if len(parts) == 1:
+        return ':'.join(['00']*2 + parts)
+    elif len(parts) == 2:
+        return ':'.join(['00'] + parts)
+    elif len(parts) == 3:
+        return ':'.join(parts)
+    else:
+        return ':'.join(parts[:3])
+
+
+def read_song_list(path):
+    parts = []
+    with open(path) as fh:
+        for line in fh:
+            parts.append(line.strip().split(' ', 1))
+
+    if len(parts) < 2:
+        print('ERROR: at least two songs must be listed.')
+        sys.exit(1)
+
+    songs = []
+    for i, entry in enumerate(parts[:-1]):
+        songs.append((fixup_time(parts[i][0], True), fixup_time(parts[i+1][0]), '{:02} - {}'.format(i+1, parts[i][1])))
+    songs.append((fixup_time(parts[-2][0], True), fixup_time(parts[-1][0]), '{:02} - {}'.format(len(parts), parts[-1][1])))
+
+    return songs
+
+
+def extract_song(source, song_desc):
+    tmpl = 'mp3cut -o "{}.mp3" -t {}-{} "{}"'
+    cmd = tmpl.format(song_desc[2], song_desc[0], song_desc[1], source)
+    print(cmd)
+    os.system(cmd)
+
+
+if __name__ == '__main__':
+    songs = read_song_list(sys.argv[2])
+    for song in songs:
+        extract_song(sys.argv[1], song)
+
+