's'

demucs_pipeline.py

@@ -285,7 +285,7 @@ def run_demucs_pipeline(
             ffmpeg_out_cmd,
             stdin=subprocess.PIPE,
             stdout=subprocess.DEVNULL,
-            stderr=subprocess.DEVNULL,
+            stderr=subprocess.PIPE,
             bufsize=1024 * 1024,
         )
 
@@ -331,6 +331,20 @@ def run_demucs_pipeline(
         reader_t.daemon = True
         reader_t.start()
 
+        # 监控 proc_out 的 stderr（推流到 YouTube，错误必须可见）
+        def _proc_out_stderr_reader():
+            try:
+                for line in iter(proc_out.stderr.readline, b""):
+                    if line:
+                        decoded = line.decode("utf-8", errors="replace").strip()
+                        if decoded:
+                            print(f"[YouTube推流] {decoded}")
+            except Exception:
+                pass
+
+        proc_out_reader_t = threading.Thread(target=_proc_out_stderr_reader, daemon=True)
+        proc_out_reader_t.start()
+
         start_time = last_frame_time = time.time()
         proc_v.last_out_ts = time.time()
 
@@ -338,6 +352,10 @@ def run_demucs_pipeline(
             try:
                 line = stderr_q.get(timeout=stderr_queue_timeout)
             except queue.Empty:
+                # 若 proc_out（推流进程）已异常退出，立即报告
+                if proc_out.poll() is not None and proc_out.returncode != 0:
+                    print(f"[ERROR] YouTube 推流进程已退出，返回码: {proc_out.returncode}")
+                    break
                 if time.time() - getattr(proc_v, "last_out_ts", time.time()) > stale_output_seconds:
                     print("[WARN] 长时间无任何日志，强制重启进程")
                     break
@@ -378,6 +396,8 @@ def run_demucs_pipeline(
         traceback.print_exc()
     finally:
         stop_event.set()
+        if proc_out is not None and proc_out.poll() is not None and proc_out.returncode != 0:
+            print(f"[INFO] YouTube 推流进程退出码: {proc_out.returncode}")
         cleanup_proc_fn(proc_v)
         cleanup_proc_fn(proc_a)
         cleanup_proc_fn(proc_out)