问题描述 | Problem Description
日志：
===========视频合成任务开始===========
时间：2026-02-27 08:23:26.687015
开始合成视频: F:/油管/Perfect Grade Unleashed Gundam Diorama.mp4
使用硬字幕
检查CUDA是否可用
CUDA可用
使用CUDA加速
添加硬字幕执行命令: ffmpeg -hwaccel cuda -i "F:/油管/Perfect Grade Unleashed Gundam Diorama.mp4" -acodec copy -vcodec libx264 -preset medium -vf subtitles='C:/Users/lingd/AppData/Local/Temp/VideoCaptioner/temp_subtitle..ass' -y "F:\油管\【卡卡】Perfect Grade Unleashed Gundam Diorama.mp4"
视频总时长: 658.24秒
2026-02-27 08:23:43 - video_utils - ERROR - 视频合成失败，
2026-02-27 08:23:43 - video_utils - ERROR - 关闭 FFmpeg: 69
Traceback (most recent call last):
File "F:\VideoCaptioner\app\core\utils\video_utils.py", line 273, in add_subtitles
raise Exception(return_code)
Exception: 69
2026-02-27 08:23:43 - video_synthesis_thread - ERROR - 视频合成失败: 69
Traceback (most recent call last):
File "F:\VideoCaptioner\app\thread\video_synthesis_thread.py", line 43, in run
add_subtitles(
File "F:\VideoCaptioner\app\core\utils\video_utils.py", line 273, in add_subtitles
raise Exception(return_code)
Exception: 69
日志信息（可选）| Logs (Optional)
问题描述 | Problem Description
日志：
===========视频合成任务开始===========
时间：2026-02-27 08:23:26.687015
开始合成视频: F:/油管/Perfect Grade Unleashed Gundam Diorama.mp4
使用硬字幕
检查CUDA是否可用
CUDA可用
使用CUDA加速
添加硬字幕执行命令: ffmpeg -hwaccel cuda -i "F:/油管/Perfect Grade Unleashed Gundam Diorama.mp4" -acodec copy -vcodec libx264 -preset medium -vf subtitles='C:/Users/lingd/AppData/Local/Temp/VideoCaptioner/temp_subtitle..ass' -y "F:\油管\【卡卡】Perfect Grade Unleashed Gundam Diorama.mp4"
视频总时长: 658.24秒
2026-02-27 08:23:43 - video_utils - ERROR - 视频合成失败，
2026-02-27 08:23:43 - video_utils - ERROR - 关闭 FFmpeg: 69
Traceback (most recent call last):
File "F:\VideoCaptioner\app\core\utils\video_utils.py", line 273, in add_subtitles
raise Exception(return_code)
Exception: 69
2026-02-27 08:23:43 - video_synthesis_thread - ERROR - 视频合成失败: 69
Traceback (most recent call last):
File "F:\VideoCaptioner\app\thread\video_synthesis_thread.py", line 43, in run
add_subtitles(
File "F:\VideoCaptioner\app\core\utils\video_utils.py", line 273, in add_subtitles
raise Exception(return_code)
Exception: 69
日志信息（可选）| Logs (Optional)