guangyusong

Reduced unnecessary copying in the code by optimizing the slicing and appending operations. These changes should result in improved performance.

Add RWKV models

3

**Changes:** Added support for RWKV model family. **Related links:** Paper: https://arxiv.org/abs/2305.13048 Github: https://github.com/BlinkDL/RWKV-LM **Screenshots:** Model list: Sample generation:

Update ffmpeg Installation Instructions in README

1

Updated the ffmpeg installation command in the README file by adding `sudo` to prevent potential permission errors during setup. Changes: - Added `sudo` to `apt-get install ffmpeg` in README.