Add seek action

[perso/Immae/Projets/Python/MusicSampler.git] / helpers / music_file.py

diff --git a/helpers/music_file.py b/helpers/music_file.py
index 6a28d620f69c043019a8e964e3c5a8b2a81aec74..32869b6891aed831a8b2768016aedf3a83a7fe45 100644 (file)
--- a/helpers/music_file.py
+++ b/helpers/music_file.py
@@ -129,6 +129,13 @@ class MusicFile(Machine):
 
             out_data[:] = audio_segment.ljust(len(out_data), b'\0')
 
+    def seek(self, value = 0, delta = False):
+        # We don't want to do that while stopping
+        if not (self.is_loaded_playing() or self.is_loaded_paused()):
+            return
+        with self.music_lock:
+            self.current_frame = max(0, int(delta) * self.current_frame + int(value * self.audio_segment.frame_rate))
+
     def stop(self, fade_out = 0, wait = False):
         if self.is_loaded_playing():
             ms = int(self.sound_position * 1000)
@@ -152,8 +159,8 @@ class MusicFile(Machine):
         with self.music_lock:
             self.current_audio_segment = new_audio_segment
 
-    def set_volume(self, value, add = False):
-        [db_gain, self.volume] = gain(value + int(add) * self.volume, self.volume)
+    def set_volume(self, value, delta = False):
+        [db_gain, self.volume] = gain(value + int(delta) * self.volume, self.volume)
 
         self.set_gain(db_gain)