220 lines
8.3 KiB
Python
220 lines
8.3 KiB
Python
import json
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import zipfile
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import os
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import shutil
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from typing import Optional, Dict, Any
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class JianYingConverter:
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def __init__(self, input_cmp: str, output_cmp: str, target_version: str = "4.0"):
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"""
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初始化剪映草稿转换器
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:param input_cmp: 输入高版本.cmp草稿路径
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:param output_cmp: 输出低版本.cmp草稿路径
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:param target_version: 目标低版本（支持 "3.0" / "4.0"）
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"""
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self.input_cmp = input_cmp
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self.output_cmp = output_cmp
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self.target_version = target_version
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self.temp_dir = "temp_jianying" # 临时解压目录
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self.core_json = "project.json" # 核心配置文件
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def _unzip_cmp(self) -> bool:
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"""解压.cmp文件到临时目录"""
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if not os.path.exists(self.input_cmp):
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print(f"错误：输入文件不存在 → {self.input_cmp}")
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return False
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# 清空并创建临时目录
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if os.path.exists(self.temp_dir):
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shutil.rmtree(self.temp_dir)
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os.makedirs(self.temp_dir)
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try:
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with zipfile.ZipFile(self.input_cmp, 'r') as zip_ref:
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zip_ref.extractall(self.temp_dir)
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print(f"成功解压到临时目录 → {self.temp_dir}")
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return True
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except Exception as e:
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print(f"解压失败：{str(e)}")
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return False
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def _load_project_json(self) -> Optional[Dict[str, Any]]:
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"""读取project.json"""
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json_path = os.path.join(self.temp_dir, self.core_json)
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if not os.path.exists(json_path):
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print(f"错误：未找到核心配置文件 → {json_path}")
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return None
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try:
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with open(json_path, 'r', encoding='utf-8') as f:
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data = json.load(f)
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print("成功读取project.json")
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return data
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except json.JSONDecodeError:
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# 部分高版本草稿可能有简单加密（如Base64），尝试解密
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try:
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import base64
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with open(json_path, 'r', encoding='utf-8') as f:
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encrypted = f.read()
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decrypted = base64.b64decode(encrypted).decode('utf-8')
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data = json.loads(decrypted)
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print("成功解密并读取project.json")
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return data
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except Exception as e:
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print(f"读取/解密JSON失败：{str(e)}")
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return None
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def _downgrade_json(self, data: Dict[str, Any]) -> Dict[str, Any]:
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"""根据目标版本降级JSON结构"""
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print(f"正在降级到剪映 v{self.target_version} 格式...")
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# 1. 移除高版本新增的顶层字段（基于逆向分析）
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high_version_fields = [
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"meta_info", "plugin_version", "advanced_settings",
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"ai_editor_info", "cloud_project_info", "multi_track_info"
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]
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for field in high_version_fields:
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data.pop(field, None)
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# 2. 降级项目配置（强制设置兼容版本号）
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if "project_config" in data:
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if self.target_version == "3.0":
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data["project_config"]["version"] = "3.9.0"
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data["project_config"]["compatible_version"] = "3.0.0"
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else: # 4.0
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data["project_config"]["version"] = "4.9.0"
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data["project_config"]["compatible_version"] = "4.0.0"
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# 3. 处理轨道数据（移除高版本特效/转场）
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if "tracks" in data:
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self._downgrade_tracks(data["tracks"])
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# 4. 处理资源列表（移除云资源引用）
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if "resources" in data:
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data["resources"] = [res for res in data["resources"] if not res.get("is_cloud", False)]
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print("JSON降级完成")
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return data
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def _downgrade_tracks(self, tracks: list):
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"""降级轨道数据（移除低版本不支持的效果）"""
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for track in tracks:
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if "clips" not in track:
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continue
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for clip in track["clips"]:
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# 移除高版本转场（保留基础转场）
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if "transition" in clip:
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transition_type = clip["transition"].get("type", "")
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# 低版本支持的基础转场列表（可根据需求扩展）
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supported_transitions = ["none", "fade", "slide", "push", "zoom"]
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if transition_type not in supported_transitions:
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clip["transition"] = {"type": "none", "duration": 0.3}
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# 移除高版本特效（如AI特效、高级滤镜）
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if "effects" in clip:
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clip["effects"] = [
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eff for eff in clip["effects"]
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if eff.get("type") in ["filter", "adjust", "text", "sticker"] # 保留基础效果
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]
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# 降级音频效果（移除3D音效等高级功能）
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if "audio_effects" in clip:
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clip["audio_effects"] = [eff for eff in clip["audio_effects"] if eff.get("type") == "volume"]
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def _save_project_json(self, data: Dict[str, Any]) -> bool:
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"""保存降级后的JSON到临时目录"""
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json_path = os.path.join(self.temp_dir, self.core_json)
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try:
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with open(json_path, 'w', encoding='utf-8') as f:
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json.dump(data, f, ensure_ascii=False, indent=2)
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print("成功保存降级后的project.json")
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return True
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except Exception as e:
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print(f"保存JSON失败：{str(e)}")
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return False
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def _zip_to_cmp(self) -> bool:
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"""将临时目录重新压缩为.cmp文件"""
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try:
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with zipfile.ZipFile(self.output_cmp, 'w', zipfile.ZIP_DEFLATED) as zip_ref:
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# 遍历临时目录所有文件，添加到压缩包
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for root, dirs, files in os.walk(self.temp_dir):
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for file in files:
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file_path = os.path.join(root, file)
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# 保持压缩包内的相对路径
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arcname = os.path.relpath(file_path, self.temp_dir)
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zip_ref.write(file_path, arcname)
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print(f"成功生成低版本草稿 → {self.output_cmp}")
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return True
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except Exception as e:
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print(f"压缩失败：{str(e)}")
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return False
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def clean_temp(self):
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"""清理临时目录"""
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if os.path.exists(self.temp_dir):
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shutil.rmtree(self.temp_dir)
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print("临时目录已清理")
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def convert(self) -> bool:
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"""执行完整转换流程"""
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print("=" * 50)
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print("剪映草稿高版本转低版本工具")
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print(f"输入：{self.input_cmp}")
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print(f"输出：{self.output_cmp}")
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print(f"目标版本：v{self.target_version}")
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print("=" * 50)
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try:
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# 1. 解压
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if not self._unzip_cmp():
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return False
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# 2. 读取JSON
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data = self._load_project_json()
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if not data:
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return False
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# 3. 降级JSON
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downgraded_data = self._downgrade_json(data)
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# 4. 保存JSON
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if not self._save_project_json(downgraded_data):
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return False
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# 5. 重新压缩
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if not self._zip_to_cmp():
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return False
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# 6. 清理临时文件
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self.clean_temp()
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print("=" * 50)
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print("转换成功！请用目标版本剪映打开输出文件")
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print("注意：复杂特效/AI功能可能已降级为基础效果")
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print("=" * 50)
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return True
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except Exception as e:
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print(f"转换异常：{str(e)}")
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self.clean_temp()
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return False
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# ------------------------------
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# 用法示例
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# ------------------------------
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if __name__ == "__main__":
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# 请修改以下参数
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INPUT_CMP = "high_version_project.cmp" # 高版本草稿路径
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OUTPUT_CMP = "low_version_project.cmp" # 输出低版本草稿路径
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TARGET_VERSION = "4.0" # 目标低版本（3.0 或 4.0）
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# 创建转换器并执行
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converter = JianYingConverter(
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input_cmp=INPUT_CMP,
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output_cmp=OUTPUT_CMP,
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target_version=TARGET_VERSION
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)
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converter.convert() |