export_draft
Export video drafts as editable JianYing (CapCut) project files to local directories for further editing and production.
Instructions
导出草稿为剪映项目，导出到本地剪映的草稿路径下
Args: draft_id: 草稿ID，必须是已存在的草稿 jianying_draft_path: 导出路径
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| draft_id | Yes | ||
| jianying_draft_path | No | /app/output |
Implementation Reference
- jianyingdraft/tool/draft_tool.py:116-185 (handler)Primary MCP tool handler for 'export_draft'. Registered via @mcp.tool() decorator. Validates draft existence, instantiates ExportDraft, performs export, processes logs, and returns structured ToolResponse with success status and details.
@mcp.tool() def export_draft(draft_id: str, jianying_draft_path: str = OUTPUT_PATH) -> ToolResponse: """ 导出草稿为剪映项目，导出到本地剪映的草稿路径下 Args: draft_id: 草稿ID，必须是已存在的草稿 jianying_draft_path: 导出路径 """ try: # 验证草稿是否存在 draft_data_path = os.path.join(SAVE_PATH, draft_id) if not os.path.exists(draft_data_path): return ToolResponse( success=False, message=f"草稿不存在: {draft_id}" ) # 验证草稿数据文件是否存在 draft_json_path = os.path.join(draft_data_path, "draft.json") if not os.path.exists(draft_json_path): return ToolResponse( success=False, message=f"草稿数据文件不存在: {draft_id}/draft.json" ) # 创建导出器 exporter = ExportDraft(jianying_draft_path) # 执行导出 export_result = exporter.export(draft_id) if export_result and isinstance(export_result, dict): return ToolResponse( success=True, message="草稿导出成功", data={ "draft_id": draft_id, "output_path": export_result.get("output") + f"/{export_result.get("draft_name")}", "draft_name": export_result.get("draft_name"), "export_logs": export_result.get("export_logs", []), "summary": export_result.get("summary", {}), "processing_details": { "total_operations": len(export_result.get("export_logs", [])), "successful_operations": len( [log for log in export_result.get("export_logs", []) if log.get("level") == "info"]), "warnings": len( [log for log in export_result.get("export_logs", []) if log.get("level") == "warning"]), "errors": len( [log for log in export_result.get("export_logs", []) if log.get("level") == "error"]) } } ) else: return ToolResponse( success=False, message="草稿导出失败，请检查草稿数据完整性" ) except FileNotFoundError as e: return ToolResponse( success=False, message=f"文件不存在: {str(e)}" ) except Exception as e: return ToolResponse( success=False, message=f"导出失败: {str(e)}" ) - Core helper method ExportDraft.export() that implements the draft export logic: reads JSON data (draft/track/video/text/audio), creates pyJianYingDraft script and segments, copies material files, adds tracks and segments, and saves the Jianying draft folder structure.
def export(self, draft_id: str) -> dict: """ 导出草稿 Args: draft_id: 草稿ID Returns: bool: 导出是否成功 """ try: self._log(f"开始导出草稿: {draft_id}") # 验证草稿数据是否存在 draft_data_path = f"{SAVE_PATH}/{draft_id}" if not os.path.exists(draft_data_path): raise FileNotFoundError(f"草稿数据不存在: {draft_data_path}") # 验证导出路径是否存在 if not os.path.exists(self.output_path): raise FileNotFoundError(f"导出路径不存在: {self.output_path}") # 1. 读取所有数据 draft_info = self._load_draft_data(draft_id) track_data = self._load_track_data(draft_id) video_data = self._load_video_data(draft_id) text_data = self._load_text_data(draft_id) audio_data = self._load_audio_data(draft_id) if not draft_info: raise FileNotFoundError(f"未找到草稿信息文件: {draft_id}/draft.json") # 2. 验证目标草稿是否已存在 draft_name = draft_info.get("draft_name", f"Draft_{draft_id}") # 3. 创建草稿 width = draft_info.get("width", 1920) height = draft_info.get("height", 1080) if os.path.exists(os.path.join(self.output_path, draft_name)): # 删除文件夹 shutil.rmtree(os.path.join(self.output_path, draft_name)) script = self.draft_folder.create_draft(draft_name, width, height) # 3. 复制素材文件 self._copy_material_files(draft_id, draft_name) # 4. 添加轨道 self._create_tracks(script, track_data) # 5. 处理视频片段 video_segments = self._process_video_segments(video_data, draft_name) # 6. 处理文本片段 text_segments = self._process_text_segments(text_data) # 7. 处理音频片段 audio_segments = self._process_audio_segments(audio_data, draft_name) # 8. 添加视频片段到轨道 self._add_video_segments_to_tracks(script, video_segments) # 为文本片段分配轨道 self._add_text_segments_to_tracks(script, text_segments) # 为音频片段分配轨道 self._add_audio_segments_to_tracks(script, audio_segments) # 9. 保存草稿 script.save() data = { "output": self.output_path, "draft_name": draft_name, "export_logs": self.export_logs, "summary": { "total_logs": len(self.export_logs), "info_count": len([log for log in self.export_logs if log["level"] == "info"]), "warning_count": len([log for log in self.export_logs if log["level"] == "warning"]), "error_count": len([log for log in self.export_logs if log["level"] == "error"]) } } return data except Exception as e: self._log(f"导出草稿失败: {e}", "error") import traceback traceback.print_exc() return { "output": self.output_path, "draft_name": draft_name, "export_logs": self.export_logs, "summary": { "total_logs": len(self.export_logs), "info_count": len([log for log in self.export_logs if log["level"] == "info"]), "warning_count": len([log for log in self.export_logs if log["level"] == "warning"]), "error_count": len([]) } } - Wrapper method in Draft class for exporting draft, which delegates to ExportDraft.export().
def export_draft(self, draft_id: str, output_path: str = ''): """ 导出草稿 Args: draft_id: str, 草稿ID output_path: str, 导出路径,可选，默认"./output" Returns: str: 导出结果信息 """ export_manager = ExportDraft(output_path) return export_manager.export(draft_id) - jianyingdraft/tool/draft_tool.py:23-23 (registration)The draft_tools function that sets up the MCP server and registers all draft-related tools including export_draft.
def draft_tools(mcp: FastMCP):