From 7705c3c0fbbe62fd485bf4f0bec605f0abbce79c Mon Sep 17 00:00:00 2001 From: xiaoxia Date: Sun, 27 Sep 2026 21:32:02 +0800 Subject: [PATCH] =?UTF-8?q?fix(worker/thumbnail):=20MediaKit=20=E6=8A=BD?= =?UTF-8?q?=E5=B8=A7=E6=94=B9=E7=94=A8=E9=A2=84=E7=AD=BE=E5=90=8D=20URL?= =?UTF-8?q?=EF=BC=8C=E9=81=BF=E5=85=8D=E7=A7=81=E6=9C=89=20bucket=20?= =?UTF-8?q?=E5=85=AC=E7=BD=91=20URL=20=E8=BF=94=E5=9B=9E=20403=20=E5=AF=BC?= =?UTF-8?q?=E8=87=B4=E6=8A=BD=E5=B8=A7=E9=99=8D=E7=BA=A7=20ffmpeg?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- apps/worker/video_processing/thumbnail_generator.py | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/apps/worker/video_processing/thumbnail_generator.py b/apps/worker/video_processing/thumbnail_generator.py index a0d4b9dcc..f57a6b684 100755 --- a/apps/worker/video_processing/thumbnail_generator.py +++ b/apps/worker/video_processing/thumbnail_generator.py @@ -221,7 +221,7 @@ def _extract_frames_via_mediakit( """ import uuid - from video_processing.oss_helpers import upload_to_oss + from video_processing.oss_helpers import get_signed_download_url, upload_to_oss from packages.shared.mediakit_client import get_mediakit_client @@ -230,14 +230,17 @@ def _extract_frames_via_mediakit( logger.info("[thumbnail] MediaKit 未配置，跳过智能抽帧") return None - # 1. 上传视频到 OSS 获取 URL + video_storage_key: str = "" + # 1. 上传视频到 OSS，并生成预签名下载 URL（bucket 私有读，公网 URL 会 403） try: video_storage_key = f"temp/{plan_id}/{uuid.uuid4().hex[:8]}_{Path(video_path).name}" - video_url = upload_to_oss(video_path, video_storage_key) - if not video_url: + public_url = upload_to_oss(video_path, video_storage_key) + if not public_url: logger.warning("[thumbnail] 视频上传 OSS 失败，无法使用 MediaKit") return None - logger.info("[thumbnail] 视频已上传 OSS: %s", video_url[:80]) + # MediaKit 从公网拉取视频，必须使用预签名 URL；签名 1h 足够完成抽帧 + video_url = get_signed_download_url(video_storage_key, expires_seconds=3600) or public_url + logger.info("[thumbnail] 视频已上传 OSS 并生成签名 URL: key=%s", video_storage_key[:80]) except Exception as e: logger.warning("[thumbnail] 视频上传 OSS 异常: %s，降级到 ffmpeg", e) return None