Many video downloaders in videodl require external CLI tools for decryption, stream parsing, and accelerated downloading. For full functionality, it is highly recommended to install the following tools and ensure they are available in your system PATH.
FFmpeg
Required for all HLS (HTTP Live Streaming) streams.
Verify installation:
ffmpeg -version
N_m3u8DL-RE
Highly recommended for performance and compatibility.
Specialized for m3u8 streams, it handles encryption, anti-leech headers, and parallel segment downloading. Without it, many clients (e.g., CCTVVideoClient, FoxNewsVideoClient, TencentVideoClient, RedditVideoClient, IQiyiVideoClient, etc.) may fail to parse or download.
Verify installation:
N_m3u8DL-RE --version
Bento4
Required for certain encrypted media workflows.
Provides utilities like mp4decrypt used by N_m3u8DL-RE for clients like TBNUKVideoClient and PlayerPLVideoClient.
Verify installation:
mp4decrypt --version
Node.js
Required for specific JavaScript-based parsing.
Only necessary if using YouTubeVideoClient, CCTVVideoClient, or TencentVideoClient.
Verify installation:
node -v
npm -v
aria2c
Optional for download acceleration.
Used to accelerate downloads (e.g., MP4 files) and enable resuming interrupted downloads.
Verify installation:
aria2c --version