feat(screencast): 统一字幕样式 / 修字幕重叠 / 修子进程乱码
- composer.py:抽出 _JIANGCHANG_SUBTITLE_STYLE 常量,FontSize 28→14 / Outline 2→2(保持),1080p 屏幕约占 1.3% 高度,演示视频留足画面呼吸感 - subtitle.py:generate_srt 加 post-process 排队,相邻字幕互相让位 (MIN_DURATION=1.0s / GAP=0.1s),任意时刻屏幕上最多 1 条字幕, 避免开头几秒密集触发的字幕叠成两行 - runner.py:subprocess.Popen 注入 PYTHONIOENCODING=utf-8 + PYTHONUTF8=1, 让 Windows 子进程 Python 强制 UTF-8 输出,runner 端 UTF-8 解码即对齐, 修中文乱码 所有 skill 录屏受益,向后兼容(非 Windows 系统 UTF-8 注入无副作用)。 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> Co-authored-by: Cursor <cursoragent@cursor.com>
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@@ -66,6 +66,13 @@ def run_screencast(
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engine.set_start_time(time.time())
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try:
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# Windows 子进程 stdout 默认走系统 ANSI code page(中文 Windows 是 cp936/GBK),
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# 这边用 encoding="utf-8" 解码会乱码。注入 PYTHONIOENCODING + PYTHONUTF8 让
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# 子进程 Python 强制以 UTF-8 输出,两端编码对齐。非 Windows 默认就 UTF-8,无副作用。
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env = os.environ.copy()
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env["PYTHONIOENCODING"] = "utf-8"
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env["PYTHONUTF8"] = "1"
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proc = subprocess.Popen(
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[sys.executable, "-m", "pytest", *pytest_args],
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stdout=subprocess.PIPE,
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@@ -73,6 +80,7 @@ def run_screencast(
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text=True,
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encoding="utf-8",
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errors="replace",
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env=env,
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)
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assert proc.stdout is not None
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for line in proc.stdout:
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