feat: include rosbag converter with individual readme for conda

examples/x2robot/rosbag_converter/README.md

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+# Rosbag Converter
+This is the default Rosbag converter from ZBL robot, which is encrypted for commercial use.
+We need a separate python environment to run this command as this does not fits the version of the venv in openpi repository.
+## Python Environment Setup
+```
+cd examples/x2robot/rosbag_converter
+conda create -n rosbag-converter python=3.10
+conda activate rosbag-converter
+pip install -r requirements.txt
+```
+## Usage
+```
+# this script is not run at the root folder of the repo
+cd examples/x2robot/rosbag_converter
+python3 batch_process.py source_datasets target_datasets
+
+# optional: you can remove the record folder at the converted dataset
+cd target_datasets
+rm -r record
+```

examples/x2robot/rosbag_converter/batch_process.py

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+import argparse
+import os
+import subprocess
+
+
+def main():
+    # 创建命令行参数解析器
+    parser = argparse.ArgumentParser(description="批量处理文件夹中的所有文件")
+    parser.add_argument("source_dir", type=str, help="源文件夹路径，包含所有要处理的文件")
+    parser.add_argument("output_dir", type=str, help="输出文件夹路径，用于存储处理后的数据")
+    parser.add_argument(
+        "--script_path",
+        type=str,
+        default="data_parse_car.py",
+        help="数据解析脚本的路径，默认为当前目录下的data_parse_car.py",
+    )
+    parser.add_argument("--file_ext", type=str, default=".bag", help="要处理的文件扩展名，默认为.bag")
+    args = parser.parse_args()
+
+    # 获取源文件夹中所有指定扩展名的文件
+    source_files = [f for f in os.listdir(args.source_dir) if f.endswith(args.file_ext)]
+
+    if not source_files:
+        print(f"在 {args.source_dir} 中未找到扩展名为 {args.file_ext} 的文件")
+        return
+
+    # 确保输出目录存在
+    os.makedirs(args.output_dir, exist_ok=True)
+
+    # 遍历并处理每个文件
+    for filename in source_files:
+        source_file = os.path.join(args.source_dir, filename)
+        print(f"正在处理文件: {filename}")
+        try:
+            # 执行数据解析命令
+            result = subprocess.run(
+                ["python3", args.script_path, source_file, args.output_dir], capture_output=True, text=True, check=True
+            )
+            print(f"成功处理 {filename}")
+            # 打印标准输出（如果有）
+            if result.stdout:
+                print("脚本输出:")
+                print(result.stdout)
+        except subprocess.CalledProcessError as e:
+            print(f"处理文件 {filename} 时出错:")
+            print(f"错误信息: {e.stderr}")
+        except Exception as e:
+            print(f"发生未知错误: {e!s}")
+
+
+if __name__ == "__main__":
+    main()

examples/x2robot/rosbag_converter/pyarmor_runtime_000000/__init__.py

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+# Pyarmor 9.1.7 (trial), 000000, 2025-07-14T17:27:17.890830
+from .pyarmor_runtime import __pyarmor__

examples/x2robot/rosbag_converter/requirements.txt

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+imutils
+matplotlib
+numpy
+opencv_python
+opencv_python_headless
+Pillow
+psutil
+reportlab
+Requests
+rosbags==0.9.23
+rosbags_image==0.9.1
+scipy
+tqdm