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bytebeat_play.py

@@ -0,0 +1,113 @@
+from __future__ import annotations
+import ast, argparse, math, sys, wave, struct, subprocess, tempfile, os, platform
+try:
+    import numpy as _np
+except ImportError:
+    _np = None
+try:
+    import sounddevice as _sd
+except ImportError:
+    _sd = None
+if platform.system().lower()=="windows":
+    import winsound as _ws
+    os.system("")
+_Z = {ast.Add,ast.Sub,ast.Mult,ast.Div,ast.FloorDiv,ast.Mod,ast.LShift,ast.RShift,ast.BitOr,ast.BitAnd,ast.BitXor,ast.Pow}
+_Y = {ast.UAdd,ast.USub,ast.Invert,ast.Not}
+_C = {"r":"\033[0m","g":"\033[92m","c":"\033[96m","y":"\033[93m","R":"\033[91m","B":"\033[1m"}
+def _a(n):
+    if isinstance(n,ast.Expression): _a(n.body); return
+    if isinstance(n,ast.BinOp):
+        if type(n.op) not in _Z: raise ValueError(type(n.op).__name__)
+        _a(n.left); _a(n.right); return
+    if isinstance(n,ast.UnaryOp):
+        if type(n.op) not in _Y: raise ValueError(type(n.op).__name__)
+        _a(n.operand); return
+    if isinstance(n,ast.Constant):
+        if not isinstance(n.value,(int,float)): raise ValueError("c")
+        return
+    if isinstance(n,ast.Name):
+        if n.id!='t': raise ValueError(n.id)
+        return
+    if isinstance(n,(ast.Call,ast.Attribute,ast.Compare,ast.BoolOp,ast.IfExp)): raise ValueError(type(n).__name__)
+    if not isinstance(n,(ast.Load,)): raise ValueError(type(n).__name__)
+def _b(s):
+    s=s.replace("/","//"); p=ast.parse(s,mode='eval'); _a(p); co=compile(p,'<b>','eval')
+    def _e(t):
+        L={'t':int(t)}
+        try:
+            r=eval(co,{"__builtins__":None,'math':math},L); return int(r)
+        except Exception:
+            return 0
+    return _e
+def _g(f,d=10.0,sr=8000,t0=0):
+    cs=sr//4; n=int(d*sr); tc=n//cs
+    if _np is not None:
+        for i in range(tc):
+            b=t0+i*cs; a=_np.empty(cs,dtype=_np.int16)
+            for j in range(cs):
+                v=f(b+j); a[j]=_np.int16(((int(v)&0xFF)-128)*256)
+            yield i/float(tc),a
+    else:
+        for i in range(tc):
+            b=t0+i*cs
+            ch=[((int(f(b+j))&0xFF)-128)*256 for j in range(cs)]
+            yield i/float(tc),ch
+def _p(f,d,sr,t0):
+    if _sd is None or _np is None:
+        print(f"{_C['y']}sounddevice not installed — using WAV fallback.{_C['r']}")
+        allv=[]
+        try:
+            for pr,ch in _g(f,d,sr,t0):
+                allv.extend(ch)
+                bar="█"*int(40*pr)+"-"*int(40*(1-pr))
+                print(f"\r{_C['c']}[ {bar} ] {int(pr*100)}%{_C['r']}",end="",flush=True)
+        except KeyboardInterrupt:
+            print(f"\n{_C['R']}Stopped by user!{_C['r']}")
+        print()
+        _w(allv,sr); return
+    print(f"{_C['B']}{_C['g']}▶ Playing live... Press Ctrl+C to stop.{_C['r']}")
+    st=_sd.OutputStream(samplerate=sr,channels=1,dtype='float32'); st.start()
+    try:
+        for pr,ch in _g(f,d,sr,t0):
+            bar="█"*int(40*pr)+"-"*int(40*(1-pr))
+            print(f"\r{_C['c']}[ {bar} ] {int(pr*100)}%{_C['r']}",end="",flush=True)
+            st.write(ch.astype('float32')/32768.0)
+    except KeyboardInterrupt:
+        print(f"\n{_C['R']}⏹ Interrupted by user!{_C['r']}")
+    finally:
+        st.stop(); st.close(); print(f"{_C['g']}Done.{_C['r']}")
+def _w(samps,sr):
+    with tempfile.NamedTemporaryFile(suffix='.wav',delete=False) as t: fn=t.name
+    frames = samps.tobytes() if not isinstance(samps,list) else b''.join(struct.pack('<h',x) for x in samps)
+    with wave.open(fn,'wb') as wf:
+        wf.setnchannels(1); wf.setsampwidth(2); wf.setframerate(sr); wf.writeframes(frames)
+    played=False; sysn=platform.system().lower()
+    if sysn=="windows":
+        try: _ws.PlaySound(fn,_ws.SND_FILENAME); played=True
+        except Exception: pass
+    elif sysn=="darwin":
+        try: subprocess.run(['afplay',fn],check=True); played=True
+        except Exception: pass
+    else:
+        try: subprocess.run(['aplay',fn],check=True); played=True
+        except Exception:
+            try: subprocess.run(['ffplay','-nodisp','-autoexit','-hide_banner','-loglevel','panic',fn],check=True); played=True
+            except Exception: pass
+    if not played: print(f"{_C['y']}Couldn't auto-play. WAV written to: {fn}{_C['r']}")
+def _m():
+    p=argparse.ArgumentParser(description=""); p.add_argument('file'); p.add_argument('--duration',type=float,default=60.0); p.add_argument('--sr',type=int,default=8000); p.add_argument('--tstart',type=int,default=0)
+    a=p.parse_args()
+    try:
+        with open(a.file,'r') as f: expr=f.read().strip()
+    except Exception as e:
+        print(f"{_C['R']}Could not read file:{_C['r']}",e); sys.exit(1)
+    try:
+        ev=_b(expr)
+    except Exception as e:
+        print(f"{_C['R']}Error parsing expression:{_C['r']}",e); sys.exit(1)
+    print(f"{_C['B']}{_C['g']}Bytebeat Player Ready!{_C['r']}")
+    print(f"{_C['c']}Expression:{_C['r']} {expr}")
+    print(f"{_C['c']}Sample Rate:{_C['r']} {a.sr} Hz")
+    print(f"{_C['c']}Duration:{_C['r']} {a.duration:.1f} s\n")
+    _p(ev,a.duration,a.sr,a.tstart)
+if __name__=='__main__': _m()