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FIX: sửa lỗi không load soundfont trên window, MIDI item không play được qua carla

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locpham
2026-08-10 10:50:02 +07:00
parent 1db892bb99
commit 1cf5b18492
5 changed files with 87 additions and 38 deletions
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app/core/vst_engine.py
+59 -37
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@@ -278,8 +278,6 @@ class PluginManager:
return load_soundfont_cached(path)
def list_soundfont_instruments(self, sf_id: str):
if not ensure_pyfluidsynth():
return []
if sf_id in _SF_INSTRUMENTS_CACHE:
return _SF_INSTRUMENTS_CACHE[sf_id]
search_dirs = []
@@ -293,12 +291,18 @@ class PluginManager:
for d in (self.extra_vst_dirs or []):
if d and os.path.isdir(d) and d not in search_dirs:
search_dirs.append(d)
for d in search_dirs:
for f in os.listdir(d):
if not (f.endswith(".sf2") or f.endswith(".sf3")):
continue
base = os.path.splitext(f)[0]
if base == sf_id or base == sf_id.replace("sf_", ""):
presets = []
# ── 1) FluidSynth (nếu có lib) — đọc bank/program/name từ engine ──
if ensure_pyfluidsynth():
for d in search_dirs:
if presets:
break
for f in os.listdir(d):
if not (f.endswith(".sf2") or f.endswith(".sf3")):
continue
base = os.path.splitext(f)[0]
if base != sf_id and base != sf_id.replace("sf_", ""):
continue
path = os.path.join(d, f)
try:
import fluidsynth as _fs
@@ -308,35 +312,31 @@ class PluginManager:
_synth = _fs.new_fluid_synth(_settings)
try:
fid = _fs.fluid_synth_sfload(_synth, path.encode("utf-8"), 1)
if fid < 0:
continue
sfont = _fs.fluid_synth_get_sfont_by_id(_synth, fid)
presets = []
if sfont:
for bank in range(0, 2):
for prog_num in range(0, 128):
try:
preset = _fs.fluid_sfont_get_preset(sfont, bank, prog_num)
except Exception:
break
if preset:
if fid >= 0:
sfont = _fs.fluid_synth_get_sfont_by_id(_synth, fid)
if sfont:
for bank in range(0, 2):
for prog_num in range(0, 128):
try:
name_ptr = _fs.fluid_preset_get_name(preset)
if name_ptr:
if hasattr(_fs, "ffi"):
raw = _fs.ffi.string(name_ptr)
else:
raw = c_char_p(name_ptr).value
if raw:
presets.append({
"bank": bank,
"program": prog_num,
"name": raw.decode("utf-8", errors="replace")
})
preset = _fs.fluid_sfont_get_preset(sfont, bank, prog_num)
except Exception:
continue
_SF_INSTRUMENTS_CACHE[sf_id] = presets[:256]
return presets[:256]
break
if preset:
try:
name_ptr = _fs.fluid_preset_get_name(preset)
if name_ptr:
if hasattr(_fs, "ffi"):
raw = _fs.ffi.string(name_ptr)
else:
raw = c_char_p(name_ptr).value
if raw:
presets.append({
"bank": bank,
"program": prog_num,
"name": raw.decode("utf-8", errors="replace"),
})
except Exception:
continue
finally:
try:
_fs.delete_fluid_synth(_synth)
@@ -344,8 +344,30 @@ class PluginManager:
pass
except Exception:
import traceback; traceback.print_exc()
_SF_INSTRUMENTS_CACHE[sf_id] = []
return []
break # đã xử lý file khớp
# ── 2) Fallback: sf2utils đọc TRỰC TIẾP file (thuần Python) ──
# Không cần libfluidsynth — quan trọng trên Windows khi thiếu DLL.
# Đọc preset header (pdta/phdr) → bank/program/name như nhau.
if not presets:
try:
from app.core.soundfont_inspector import SoundFontInspector
insp = SoundFontInspector(system_sf_dir=self.sf_dir, upload_sf_dir=self.upload_sf_dir)
for d in search_dirs:
if presets:
break
for f in os.listdir(d):
if not (f.endswith(".sf2") or f.endswith(".sf3")):
continue
base = os.path.splitext(f)[0]
if base == sf_id or base == sf_id.replace("sf_", ""):
info = insp.inspect_sf2_file(os.path.join(d, f))
if info and info.get("instruments"):
presets = info["instruments"]
break
except Exception:
presets = []
_SF_INSTRUMENTS_CACHE[sf_id] = presets[:256]
return presets[:256]
def list_available(self) -> dict:
return {