diff --git a/src/BowongModalFunctions/models/ffmpeg_worker_model.py b/src/BowongModalFunctions/models/ffmpeg_worker_model.py
index 287a66e..ed28886 100644
--- a/src/BowongModalFunctions/models/ffmpeg_worker_model.py
+++ b/src/BowongModalFunctions/models/ffmpeg_worker_model.py
@@ -19,12 +19,21 @@ class FFMpegSliceSegment(BaseModel):
     @classmethod
     def parse_start(cls, v: Union[float, str, TimeDelta]):
         if isinstance(v, float):
+            if v < 0.0:
+                raise ValueError("开始时间点不能小于0")
             return TimeDelta(seconds=v)
         elif isinstance(v, int):
+            if v < 0:
+                raise ValueError("开始时间点不能小于0")
             return TimeDelta(seconds=v)
         elif isinstance(v, str):
-            return TimeDelta.from_format_string(v)
+            timedelta = TimeDelta.from_format_string(v)
+            if timedelta.total_seconds() < 0.0:
+                raise ValueError("开始时间点不能小于0")
+            return timedelta
         elif isinstance(v, TimeDelta):
+            if v.total_seconds() < 0.0:
+                raise ValueError("开始时间点不能小于0")
             return v
         else:
             raise TypeError(v)
@@ -33,12 +42,21 @@ class FFMpegSliceSegment(BaseModel):
     @classmethod
     def parse_end(cls, v: Union[float, TimeDelta]):
         if isinstance(v, float):
+            if v < 0.0:
+                raise ValueError("结束时间点不能小于0")
             return TimeDelta(seconds=v)
         elif isinstance(v, int):
+            if v < 0:
+                raise ValueError("结束时间点不能小于0")
             return TimeDelta(seconds=v)
         elif isinstance(v, str):
-            return TimeDelta.from_format_string(v)
+            timedelta = TimeDelta.from_format_string(v)
+            if timedelta.total_seconds() < 0.0:
+                raise ValueError("结束时间点不能小于0")
+            return timedelta
         elif isinstance(v, TimeDelta):
+            if v.total_seconds() < 0.0:
+                raise ValueError("结束时间点不能小于0")
             return v
         else:
             raise TypeError(v)
diff --git a/src/BowongModalFunctions/models/media_model.py b/src/BowongModalFunctions/models/media_model.py
index 3f4b649..23783f7 100644
--- a/src/BowongModalFunctions/models/media_model.py
+++ b/src/BowongModalFunctions/models/media_model.py
@@ -176,6 +176,11 @@ class MediaSource(BaseModel):
             return f"{self.protocol.value}/{self.path}"
         return f"{self.protocol.value}/{self.endpoint}/{self.bucket}/{self.path}"
 
+    @computed_field(description="CDN挂载地址")
+    @property
+    def url(self) -> str:
+        return f"{config.S3_cdn_endpoint}/{self.get_cdn_url()}"
+
     def __str__(self):
         match self.protocol:
             case MediaProtocol.http:
diff --git a/src/BowongModalFunctions/models/web_model.py b/src/BowongModalFunctions/models/web_model.py
index 2747d03..5588f88 100644
--- a/src/BowongModalFunctions/models/web_model.py
+++ b/src/BowongModalFunctions/models/web_model.py
@@ -79,9 +79,10 @@ class FFMPEGResult(BaseModel):
     @computed_field(description="可通过CDN访问的资源链接")
     @property
     def url(self) -> str:
-        if not self.urn.startswith("s3://"):
-            raise ValueError("无法转换非s3前缀协议")
-        return self.urn.replace('s3://', f"{config.S3_cdn_endpoint}/")
+        prefix = f"s3://{config.S3_region}/{config.S3_bucket_name}"
+        if not self.urn.startswith(prefix):
+            raise ValueError("无法转换非s3前缀协议和非当前挂载点的s3协议")
+        return self.urn.replace(prefix, f"{config.S3_cdn_endpoint}/")
 
 
 class BaseFFMPEGTaskRequest(BaseModel):
diff --git a/src/BowongModalFunctions/utils/VideoUtils.py b/src/BowongModalFunctions/utils/VideoUtils.py
index e0ece3b..06e5b76 100644
--- a/src/BowongModalFunctions/utils/VideoUtils.py
+++ b/src/BowongModalFunctions/utils/VideoUtils.py
@@ -461,6 +461,8 @@ class VideoUtils:
                 if marker.end.total_seconds() > 0 and math.isclose(marker.end.total_seconds(), metadata.format.duration,
                                                                    rel_tol=diff_tolerance):
                     marker.end = TimeDelta(seconds=metadata.format.duration)
+                    logger.warning(
+                        f"第{i}个切割点结束点{marker.end.total_seconds()}s接近视频时长[0-{metadata.format.duration}s]范围")
                 else:
                     raise ValueError(
                         f"第{i}个切割点结束点{marker.end.total_seconds()}s超出视频时长[0-{metadata.format.duration}s]范围")
diff --git a/src/cluster/ffmpeg_app.py b/src/cluster/ffmpeg_app.py
index b0918fd..90c057c 100644
--- a/src/cluster/ffmpeg_app.py
+++ b/src/cluster/ffmpeg_app.py
@@ -161,10 +161,12 @@ with ffmpeg_worker_image.imports():
             case MediaProtocol.hls:
                 outputs = await ffmpeg_hls_slice_process(media_source=media,
                                                          media_markers=markers,
+                                                         options=options,
                                                          fn_id=fn_id)
             case MediaProtocol.s3:
                 outputs = await ffmpeg_slice_process(media_source=media,
                                                      media_markers=markers,
+                                                     options=options,
                                                      fn_id=fn_id)
             case _:  # webhook不会报错，需要确认
                 raise NotImplementedError("暂不支持的协议")