feat: VSTi live playback 100% client-side (không Carla) — autosample SF2 backend (pedalboard) → FluidSynth WASM qua masterBus → mastering → main out; SonicVstiAutosample ensure+dedup+cooldown; runtime gating __enableCarlaLivePlayback; âm bắt qua ensureMidiCapture → clientSideExport

tools/autosample_vsti.py

@@ -118,6 +118,49 @@ def _render_note(vst, note, sr, dur, release, velocity):
     return np.clip(audio * 32767, -32768, 32767).astype(np.int16)
 
 
+def autosample_sf2(instrument_id, out_path, preset_id=None, preset_path=None,
+                   preset_data_b64=None, low=36, high=96, step=2, duration=2.5,
+                   release=1.0, velocity=100, sample_rate=44100, name=None, log=None):
+    """Auto-sample VSTi -> SF2 (16-bit mono). Dung cho server endpoint
+    /api/v1/plugins/autosample va CLI main().
+
+    Returns dict {note_count, out_path, size_bytes}.
+    Raises FileNotFoundError neu plugin khong tim thay, RuntimeError neu
+    pedalboard khong kha dung hoac khong render duoc not nao.
+    """
+    from app.core.vst_engine import PluginManager, apply_preset_to_plugin, HAS_PEDALBOARD
+    if not HAS_PEDALBOARD:
+        raise RuntimeError("pedalboard khong kha dung - khong auto-sample duoc")
+
+    vst = PluginManager().load_vst(instrument_id)
+    if vst is None:
+        raise FileNotFoundError(f"Khong tim thay VSTi: {instrument_id} - hay Scan trong Plugin Manager truoc")
+    if preset_id or preset_path or preset_data_b64:
+        apply_preset_to_plugin(vst, preset_id=preset_id, preset_path=preset_path,
+                               preset_data_b64=preset_data_b64)
+
+    def _log(msg):
+        if log:
+            log(msg)
+
+    samples = []
+    for note in range(low, high + 1, step):
+        frames = _render_note(vst, note, sample_rate, duration, release, velocity)
+        if frames is None:
+            _log(f"note {note}: silent, bo qua")
+            continue
+        samples.append({"note": note, "frames": frames})
+        _log(f"note {note}: {frames.shape[0] / sample_rate:.2f}s")
+    if not samples:
+        raise RuntimeError("Khong render duoc not nao (plugin silent?)")
+
+    if name is None:
+        name = os.path.basename(instrument_id)
+    write_sf2(out_path, samples, sample_rate, name=name)
+    size = os.path.getsize(out_path)
+    _log(f"wrote {out_path} ({size // 1024} KB, {len(samples)} not)")
+    return {"note_count": len(samples), "out_path": out_path, "size_bytes": size}
+
 def main():
     ap = argparse.ArgumentParser(description=__doc__.split("\n\n")[0])
     ap.add_argument("--instrument", required=True, help="plugin_id da scan (Plugin Manager)")
@@ -133,35 +176,21 @@ def main():
     ap.add_argument("--sf3", action="store_true", help="convert SF2 -> SF3 sau khi sample")
     args = ap.parse_args()
 
-    from app.core.vst_engine import PluginManager, apply_preset_to_plugin, HAS_PEDALBOARD
-    if not HAS_PEDALBOARD:
-        sys.exit("pedalboard khong kha dung - khong auto-sample duoc")
-
-    vst = PluginManager().load_vst(args.instrument)
-    if vst is None:
-        sys.exit(f"Khong tim thay VSTi: {args.instrument} - hay Scan trong Plugin Manager truoc")
-    if args.preset:
-        apply_preset_to_plugin(vst, preset_path=args.preset)
-
-    samples = []
-    for note in range(args.low, args.high + 1, args.step):
-        frames = _render_note(vst, note, args.sample_rate, args.duration, args.release, args.velocity)
-        if frames is None:
-            print(f"note {note}: silent, bo qua")
-            continue
-        samples.append({"note": note, "frames": frames})
-        print(f"note {note}: {frames.shape[0] / args.sample_rate:.2f}s")
-    if not samples:
-        sys.exit("Khong render duoc not nao (plugin silent?)")
-
-    write_sf2(args.out, samples, args.sample_rate, name=os.path.basename(args.instrument))
-    print(f"wrote {args.out} ({os.path.getsize(args.out) // 1024} KB, {len(samples)} not)")
+    try:
+        result = autosample_sf2(
+            args.instrument, args.out, preset_path=args.preset,
+            low=args.low, high=args.high, step=args.step,
+            duration=args.duration, release=args.release,
+            velocity=args.velocity, sample_rate=args.sample_rate,
+        )
+    except (FileNotFoundError, RuntimeError) as e:
+        sys.exit(str(e))
+    print(f"wrote {result['out_path']} ({result['size_bytes'] // 1024} KB, {result['note_count']} not)")
 
     if args.sf3:
         from app.core.soundfont_converter import SoundFontConverter
         p = SoundFontConverter().convert_sf2_to_sf3(args.out)
         print("sf3:", p)
 
-
 if __name__ == "__main__":
     main()