Initial commit: RecorderStudio：PyQt5 高保真录音软件，无损 WAV / WASAPI 独占、BS.1770 响度与 ffmpeg 交叉验证

dev/dialog_check.py

@@ -0,0 +1,131 @@
+"""界面回归检查之二：对话框的后台任务链路（QThread + 信号）真跑一遍。
+
+自检覆盖了 process_file / export_audio 这些纯函数，但没有覆盖
+"Qt 工作线程 → 信号 → 界面回填"这段管线。这里直接构造对话框、
+触发 _run()、泵事件循环直到完成，再检查产物是否真的生成。
+"""
+import os
+import sys
+import time
+
+os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
+ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, ROOT)
+
+import numpy as np
+from PyQt5.QtCore import Qt
+from PyQt5.QtWidgets import QApplication
+
+QApplication.setAttribute(Qt.AA_EnableHighDpiScaling, True)
+app = QApplication([])
+from recorder.gui import QSS  # noqa: E402
+app.setStyleSheet(QSS)
+
+from recorder import dsp  # noqa: E402
+from recorder.wavfile import WavReader, write_wav  # noqa: E402
+from recorder.window import ExportDialog, ProcessDialog  # noqa: E402
+
+fails = []
+
+
+def check(name, ok, detail=""):
+    print(("  ✓ " if ok else "  ✗ ") + name + (("   " + detail) if detail else ""))
+    if not ok:
+        fails.append(name)
+
+
+def pump(seconds=1.0, until=None):
+    """泵事件循环，直到 until() 为真或超时。"""
+    t0 = time.time()
+    while time.time() - t0 < seconds:
+        app.processEvents()
+        time.sleep(0.02)
+        if until is not None and until():
+            return True
+    return until() if until else True
+
+
+work = os.path.join(ROOT, "dev", "shots", "dlg")
+os.makedirs(work, exist_ok=True)
+
+# 造一段"两头静音 + 中间正弦 + 轻微直流偏置"的测试素材
+sr = 48000
+rng = np.random.default_rng(3)
+sil = rng.standard_normal((sr // 2, 2)) * dsp.db_to_lin(-85) + 0.001
+tone = np.stack([np.sin(2 * np.pi * 440 * np.arange(sr) / sr) * 0.25] * 2, axis=1)
+src = os.path.join(work, "dialog_src.wav")
+write_wav(src, np.concatenate([sil, tone, sil]).astype(np.float32), sr, bit_depth="24")
+
+print("── 后期处理对话框 " + "─" * 48)
+pd = ProcessDialog(src, None)
+pd.show()
+app.processEvents()
+pd.trim.setChecked(True)
+pd.norm.setCurrentIndex(1)          # 峰值归一化
+pd.depth.setCurrentIndex(pd.depth.findData("16"))   # 16 位输出
+pd._run()
+ok = pump(60, until=lambda: pd.progress.value() == 100 and "完成" in pd.log.toPlainText())
+out = os.path.splitext(src)[0] + "_processed.wav"
+check("后期处理任务完成并回填界面", ok and pd.run_btn.isEnabled(),
+      pd.log.toPlainText().strip().splitlines()[-1] if pd.log.toPlainText() else "")
+check("生成了处理后的文件", os.path.exists(out),
+      f"{os.path.getsize(out) if os.path.exists(out) else 0} 字节")
+check("处理完成后「打开输出目录」按钮可用", pd.open_btn.isEnabled())
+if os.path.exists(out):
+    with WavReader(out) as r:
+        info = r.info()
+        data = r.read()
+    check("输出为 16 位且用时变短（首尾静音已裁）",
+            info["bits"] == 16 and 1.1 < info["duration"] < 1.5,
+            f"{info['format']}，{info['duration']:.3f}s（原始 2.000s）")
+    check("峰值被归一化到 -1 dBFS 附近",
+            abs(float(dsp.dbfs(dsp.peak(data, axis=0))[0]) + 1.0) < 0.3,
+            f"{float(dsp.dbfs(dsp.peak(data, axis=0))[0]):+.2f} dBFS")
+    check("直流偏移已去除", abs(float(np.mean(data))) < 1e-3,
+            f"{float(np.mean(data)):.2e}")
+pd.close()
+
+print("\n── 导出对话框 " + "─" * 50)
+ed = ExportDialog(out, None)
+ed.show()
+app.processEvents()
+check("导出预设列表完整", ed.preset.count() >= 8,
+      "、".join(ed.preset.itemData(i) for i in range(ed.preset.count())))
+ed.preset.setCurrentIndex(1)        # WAV 24 位
+ed._run()
+done = pump(60, until=lambda: "成功" in ed.log.toPlainText()
+            or "失败" in ed.log.toPlainText())
+check("导出任务完成并回填界面", done and "成功" in ed.log.toPlainText(),
+      ed.log.toPlainText().strip())
+exported = None
+for i in range(ed.preset.count()):
+    from recorder import post
+    p = post.default_export_path(out, ed.preset.itemData(i))
+    if os.path.exists(p):
+        exported = p
+check("导出文件已生成且不与源文件同名",
+      exported is not None and os.path.abspath(exported) != os.path.abspath(out),
+      os.path.basename(exported) if exported else "无")
+
+# 找不到 ffmpeg 的场景：必须有清晰提示而不是崩溃
+from recorder import post as _post
+if _post.find_ffmpeg() is None:
+    ed.preset.setCurrentIndex(ed.preset.findData("flac"))
+    ed._run()
+    pump(20, until=lambda: "失败" in ed.log.toPlainText())
+    check("缺少 ffmpeg 时导出失败并给出提示",
+          "ffmpeg" in ed.log.toPlainText(), ed.log.toPlainText().strip()[-60:])
+else:
+    ed.preset.setCurrentIndex(ed.preset.findData("flac"))
+    ed._run()
+    flac_ok = pump(120, until=lambda: "成功" in ed.log.toPlainText()
+                   or "失败" in ed.log.toPlainText())
+    check("导出 FLAC 成功", flac_ok and "成功" in ed.log.toPlainText(),
+          ed.log.toPlainText().strip()[-60:])
+ed.close()
+
+print("\n" + "=" * 62)
+if fails:
+    print(f"失败 {len(fails)} 项：" + "、".join(fails))
+    sys.exit(1)
+print("对话框后台任务链路校验全部通过")