init

.gitignore

@@ -0,0 +1,107 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+
+# 
+temp

README.md

@@ -1,2 +1,55 @@
-# ncmdump
-将.ncm格式音频文件转换为flac格式，提供windows客户端和WEB两种使用方式。（Convert .ncm format audio files to flac format, providing two usage options: a Windows client and a web interface.）
+# ncm -> flac converter
+
+将.ncm格式音频文件转换为flac格式，提供windows客户端和WEB两种使用方式。
+
+## 1 环境
+
+基本环境：
+```bash
+pip install mutagen
+pip install pycryptodome
+```
+
+GUI额外环境：
+```bash
+pip install PyQt6
+pip install pyinstaller
+```
+
+WEB额外环境：
+```bash
+pip install streamlit
+```
+
+全安装：
+```bash
+pip install -r requirements.txt
+```
+
+## 2 使用
+
+### 2.1 GUI
+
+运行：
+```bash
+python gui.py
+```
+
+编译：
+```bash
+pyinstaller --onefile --add-data="file:file" -wF -i file/favicon-32x32.png -n "NCM转换器" .\gui.py
+```
+
+效果:
+![s1](./file/s1.gif)
+
+
+### 2.2 WEB
+
+运行：
+```bash
+streamlit run web.py --server.port 1111
+```
+
+效果:
+![s2](./file/s2.gif)

cplusplus/ncmdumpdll.py

@@ -0,0 +1,51 @@
+import ctypes
+import os
+
+class NcmdumpDll:
+    def __init__(self, file_name):
+        dll_path = os.path.abspath(os.path.join(os.path.dirname(__file__), "libncmdump.dll"))
+        self.dll = ctypes.CDLL(dll_path)
+
+        # Define function prototypes
+        self.dll.CreateNeteaseCrypt.argtypes = [ctypes.c_char_p]
+        self.dll.CreateNeteaseCrypt.restype = ctypes.c_void_p
+
+        self.dll.Dump.argtypes = [ctypes.c_void_p]
+        self.dll.Dump.restype = ctypes.c_int
+
+        self.dll.FixMetadata.argtypes = [ctypes.c_void_p]
+        self.dll.FixMetadata.restype = None
+
+        self.dll.DestroyNeteaseCrypt.argtypes = [ctypes.c_void_p]
+        self.dll.DestroyNeteaseCrypt.restype = None
+
+        # Convert file name to bytes
+        file_bytes = file_name.encode('utf-8')
+
+        # Allocate memory and copy file name bytes
+        input_ptr = ctypes.create_string_buffer(file_bytes)
+
+        # Create NeteaseCrypt instance
+        self.netease_crypt = self.dll.CreateNeteaseCrypt(input_ptr)
+
+    def dump(self):
+        return self.dll.Dump(self.netease_crypt)
+
+    def fix_metadata(self):
+        self.dll.FixMetadata(self.netease_crypt)
+
+    def destroy(self):
+        self.dll.DestroyNeteaseCrypt(self.netease_crypt)
+
+    def process_file(self):
+        self.dump()
+        self.fix_metadata()
+        self.destroy()
+
+if __name__ == "__main__":
+    # 文件名
+    file_path = "YOASOBI.ncm"
+    # 创建 NeteaseCrypt 类的实例
+    netease_crypt = NcmdumpDll(file_path)
+    # 启动转换过程
+    netease_crypt.process_file()

gui.py

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+import sys
+from PyQt6.QtWidgets import QApplication, QWidget, QVBoxLayout, QLabel
+from PyQt6.QtCore import Qt
+from PyQt6.QtGui import QDropEvent,QPixmap, QPainter, QFont, QColor,QFontMetrics,QIcon,QDragEnterEvent
+import os
+from ncmdump import dump
+
+class DragDropWidget(QWidget):
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.setAcceptDrops(True)
+        self.init_ui()
+
+    def init_ui(self):
+        self.setWindowTitle("NCM转换器")
+        self.setGeometry(100, 100, 573, 573)  
+
+        self.setWindowIcon(QIcon(self.get_resource_path("file/favicon-32x32.png")))
+        # 加载图片
+        self.original_pixmap = QPixmap(self.get_resource_path("file/bk.png"))
+
+        self.label = QLabel(self)
+        self.label.setPixmap(self.original_pixmap)
+        self.label.setGeometry(0, 0, 573, 573)  
+        self.update_text('将ncm文件拖拽到此处')  # 初始文本内容
+    def update_text(self, text):
+        pixmap = self.original_pixmap.copy()  # 复制原始的 QPixmap 对象
+        painter = QPainter(pixmap)
+        painter.setPen(QColor('black'))  # 设置文本颜色
+        font = QFont('SimHei', 20)  # 设置字体和大小
+        painter.setFont(font)
+
+        font_metrics = QFontMetrics(font)
+        text_width = font_metrics.horizontalAdvance(text)
+        text_height = font_metrics.height()
+
+        x = (pixmap.width() - text_width) // 2
+        y = (pixmap.height() - text_height) // 2 + font_metrics.ascent()
+
+        painter.drawText(x, y, text)  # 在图片中居中绘制文本
+        painter.end()
+        self.label.setPixmap(pixmap)  # 更新 QLabel 中的图片
+
+    def get_resource_path(self,relative_path):
+        if hasattr(sys, '_MEIPASS'):
+            return os.path.join(sys._MEIPASS, relative_path)
+        return os.path.join(os.path.abspath("."), relative_path)
+
+
+    def dragEnterEvent(self, event: QDragEnterEvent):
+        if event.mimeData().hasUrls():
+            event.acceptProposedAction()
+
+    def dropEvent(self, event: QDropEvent):
+        for url in event.mimeData().urls():
+            file_path = url.toLocalFile()
+            if file_path.endswith(".ncm"):
+                try:
+                    dump(file_path)
+                    self.update_text(f"处理完成：{file_path}")
+                except Exception as e:
+                    self.update_text(f"处理文件时出错：{str(e)}")
+
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    widget = DragDropWidget()
+    widget.show()
+    sys.exit(app.exec())

ncmdump/__init__.py

@@ -0,0 +1 @@
+from .core import dump