First, open your command terminal and use a text processing command to filter out the video segment URLs from the M3U8 file.
Once you have your text file ( ts_links.txt ) filled with sequential URLs, you can pass it directly to aria2c to download all fragments concurrently. The Optimal Command
: Open the primary M3U8 link in a text editor first. Look for the resolution or bandwidth you want, copy that specific sub-M3U8 URL, and use it for your extraction script. 2. Handling Authentication and Cookies
Now that you have a clean urls.txt file containing hundreds of .ts URLs, you can unleash aria2c . Run the following optimized command in your terminal: aria2c m3u8
If the .m3u8 file contains an #EXT-X-KEY tag, the segments are encrypted. aria2c will download the raw encrypted fragments, but the merged file will be unplayable.
--no-conf : Prevents local configuration files from overriding your speed settings. ⚠️ Troubleshooting Common Pitfalls 1. 403 Forbidden Errors
If the .m3u8 file uses relative paths (e.g., segment1.ts instead of https://example.com ), use awk to prepend the base URL: First, open your command terminal and use a
Some m3u8 links require custom HTTP headers (referrers, user-agents) to work.
After the download finishes, your directory will be filled with hundreds of numbered .ts files. You must combine them in the correct sequential order. Method A: Using FFmpeg (Recommended)
ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto \ -i "stream.m3u8" \ -c copy \ -f mp4 \ -download_protocol "http,https" \ -downloader "./aria2_downloader.sh" \ output.mp4 Look for the resolution or bandwidth you want,
If the M3U8 file is a standard HLS master playlist containing relative paths, aria2c will download the playlist, parse the segment URLs, download all segments into a temporary folder, and merge them into a single output file.
Downloading M3U8 (HLS) streams often requires a multi-tool approach because aria2c is a high-speed download engine but does not natively parse and merge complex M3U8 playlists. By combining aria2c with tools like yt-dlp or FFmpeg , you can achieve significantly faster downloads through parallel connections. Method 1: Using yt-dlp with aria2c (Recommended)