systems/to_ogg.py

do.py

@@ -424,23 +424,24 @@ def w(x): file.write(x)
     for channel in channels:
         if channel:
             os.environ['DLAL_PAN_FLIP'] = channel
-        p = subprocess.Popen(invocation, shell=True)
-        signal.signal(signal.SIGINT, lambda *args: p.send_signal(signal.SIGINT))
-        p.wait()
+        subprocess.run(invocation, shell=True, check=True)
     if args.stereo:
         name = Path(args.run[0]).stem
         l = Path(name + 'l.flac')
         r = Path(name + 'r.flac')
         if l.exists() and r.exists():
             o = name + '.flac'
             print(f'combining into {o}')
-            subprocess.run([
-                'python3',
-                'systems/lr_combine.py',
-                l,
-                r,
-                o,
-            ])
+            subprocess.run(
+                [
+                    'python3',
+                    'systems/lr_combine.py',
+                    l,
+                    r,
+                    o,
+                ],
+                check=True,
+            )
 
 # ===== deploy ===== #
 if args.deploy:

skeleton/dlal/_sound.py

@@ -22,6 +22,18 @@ def to_i16le(self, file_path='out.i16le'):
     def to_flac(self, file_path='out.flac'):
         sf.write(file_path, self.samples, self.sample_rate, format='FLAC')
 
+    def to_ogg(self, file_path='out.ogg'):
+        # soundfile crashes!
+        # https://github.com/bastibe/python-soundfile/issues/233
+        # https://github.com/bastibe/python-soundfile/issues/266
+        # https://github.com/bastibe/python-soundfile/issues/396
+        # https://github.com/bastibe/python-soundfile/issues/426
+        # sf.write(file_path, self.samples, self.sample_rate, format='OGG')
+        self.to_flac('tmp.flac')
+        p = _subprocess.run(f'ffmpeg -y -i tmp.flac {file_path}'.split(), stderr=_subprocess.PIPE)
+        if p.returncode:
+            raise Exception(f'ffmpeg returned non-zero exit status {p.returncode}\nstderr:\n{p.stderr.decode()}')
+
     def normalize(self):
         m = 1 / max(abs(i) for i in self.samples)
         self.samples = [i * m for i in self.samples]

systems/to_ogg.py

@@ -0,0 +1,11 @@
+import dlal
+
+import argparse
+from pathlib import Path
+
+parser = argparse.ArgumentParser()
+parser.add_argument('in_path', type=Path)
+args = parser.parse_args()
+
+sound = dlal.sound.read(args.in_path)
+sound.to_ogg(args.in_path.with_suffix('.ogg'))