X-Git-Url: https://git.immae.eu/?p=perso%2FImmae%2FProjets%2FPython%2FMusicSampler.git;a=blobdiff_plain;f=helpers%2Fmusic_file.py;h=aef0adce00c4f55f539b67dd07479bdae7327b7e;hp=cff897ad67c98ac05438de3a2d27ca0d98f01d95;hb=9925ce3b588fc449a3e0f5a6506a2d29207928d3;hpb=0cb786e3c003745a3bde2b7f6ab06871147ce6f4

diff --git a/helpers/music_file.py b/helpers/music_file.py
index cff897a..aef0adc 100644
--- a/helpers/music_file.py
+++ b/helpers/music_file.py
@@ -125,6 +125,8 @@ class MusicFile(Machine):
             return 0
 
     def play(self, fade_in=0, volume=100, loop=0, start_at=0):
+        # FIXME: create a "reinitialize" method
+        self.gain_effects = []
         self.set_gain(gain(volume) + self.mapping.master_gain, absolute=True)
         self.volume = volume
         self.current_loop = 0
@@ -178,7 +180,7 @@ class MusicFile(Machine):
                     data += new_data
                     nb_frames += new_nb_frames
                 elif nb_frames == 0:
-                    # FIXME: too slow
+                    # FIXME: too slow when mixing multiple streams
                     threading.Thread(
                             name="MSFinishedCallback",
                             target=self.finished_callback).start()
@@ -212,11 +214,26 @@ class MusicFile(Machine):
             return
         with self.music_lock:
             self.abandon_all_effects()
-            self.current_frame = max(
-                    0,
-                    int(delta) * self.current_frame
-                        + int(value * self.audio_segment.frame_rate))
-        # FIXME: si on fait un seek + delta, adapter le "loop"
+            if delta:
+                frame_count = int(self.audio_segment.frame_count())
+                frame_diff = int(value * self.audio_segment.frame_rate)
+                self.current_frame += frame_diff
+                while self.current_frame < 0:
+                    self.current_loop -= 1
+                    self.current_frame += frame_count
+                while self.current_frame > frame_count:
+                    self.current_loop += 1
+                    self.current_frame -= frame_count
+                if self.current_loop < 0:
+                    self.current_loop = 0
+                    self.current_frame = 0
+                if self.current_loop > self.last_loop:
+                    self.current_loop = self.last_loop
+                    self.current_frame = frame_count
+            else:
+                self.current_frame = max(
+                        0,
+                        int(value * self.audio_segment.frame_rate))
 
     def effects_next_gain(self, frame_count):
         db_gain = 0