参考：
https://github.com/BadToBest/EchoMimic
安装
下载模型
下载位置放到下面下载代码目录下， cd EchoMimic 下
export HF_ENDPOINT=https://hf-mirror.com
huggingface-cli download --resume-download --local-dir-use-symlinks False BadToBest/EchoMimic --local-dir pretrained_weights
下载代码，安装环境
git clone https://github.com/BadToBest/EchoMimic
cd EchoMimic
pip install 
