fix(music-lab): video encoder timeout을 duration에 비례 (긴 mix 인코딩 지원)

music-lab/app/pipeline/video.py

@@ -11,7 +11,15 @@ from . import storage
 logger = logging.getLogger("music-lab.video")
 
 ENCODER_URL = os.getenv("WINDOWS_VIDEO_ENCODER_URL", "")
-ENCODER_TIMEOUT_S = 200  # Windows 서버 ffmpeg 180s + 마진
+ENCODER_TIMEOUT_BASE_S = 300  # 짧은 영상용 base
+
+
+def _encoder_timeout(duration_sec: int) -> int:
+    """duration에 비례한 HTTP timeout — Windows ffmpeg timeout (~0.3x duration + 180)에 60s 마진 추가.
+
+    1분 → 300s, 30분 → 780s, 60분 → 1320s, 120분 → 2400s
+    """
+    return max(ENCODER_TIMEOUT_BASE_S, int(duration_sec * 0.3) + 240)
 
 # NAS 호스트 절대경로 prefix — docker bind mount의 host 측
 NAS_VIDEOS_ROOT = os.getenv("NAS_VIDEOS_ROOT", "/volume1/docker/webpage/data/videos")
@@ -52,10 +60,11 @@ def generate(*, pipeline_id: int, audio_path: str, cover_path: str,
         "tracks": tracks or [],
     }
 
-    logger.info("Windows 인코더 호출: pipeline=%d audio=%s style=%s bg_mode=%s",
-                 pipeline_id, audio_path, style, background_mode)
+    timeout_s = _encoder_timeout(duration_sec)
+    logger.info("Windows 인코더 호출 (timeout=%ds): pipeline=%d duration=%ds style=%s bg_mode=%s",
+                 timeout_s, pipeline_id, duration_sec, style, background_mode)
     try:
-        with httpx.Client(timeout=ENCODER_TIMEOUT_S) as client:
+        with httpx.Client(timeout=timeout_s) as client:
             resp = client.post(f"{ENCODER_URL}/encode_video", json=payload)
     except (httpx.ConnectError, httpx.ReadTimeout, httpx.WriteTimeout, httpx.NetworkError) as e:
         raise VideoGenerationError(f"Windows 인코더 연결 실패: {e}")