[Feature Request] Implement Parallel Download for Playlists to Improve Speed

[avinashtare]

Description

Currently, the ytDownloader tool downloads playlist videos sequentially, which can be slow, especially for large playlists. To enhance performance, I suggest adding support for parallel downloading of playlist videos. This would allow multiple videos to be downloaded simultaneously, significantly reducing the overall download time.

Proposed Changes:

• Implement an option to enable parallel downloads for playlist videos.
• Allow users to specify the number of simultaneous downloads (e.g., 2, 4, 8, or more).
• Handle rate limits and errors effectively, such as by retrying failed downloads and limiting connections if necessary.
• Include a safe default (e.g., 4 or 8 concurrent downloads) to prevent overwhelming the system or network.

Benefits:

• Faster Playlist Downloads: Parallel downloading will significantly reduce the time needed to download large playlists.
• Improved User Experience: Users with fast internet connections can take full advantage of their speed, enhancing the tool's overall usability.

Additional Notes:

Since the project is built with Node.js, consider using libraries like Promise.all(), async/await, or third-party packages like p-limit or async to implement parallel download functionality. Proper error handling should also be included to manage retries and gracefully handle failures without crashing the app.

[aandrew-me]

The project uses yt-dlp to download videos, I don't know if it supports parallel downloads for playlists