In the world of online streaming, the HTTP Live Streaming (HLS) protocol—manifested through .m3u8 files—has become the gold standard for delivering video content. From educational platforms to live event broadcasts, HLS breaks videos into tiny .ts (Transport Stream) chunks. Downloading these manually is tedious. Enter the dynamic duo: and m3u8 .
If the video is encrypted (look for #EXT-X-KEY in m3u8), you'll need the decryption key. Tools like ffmpeg can handle it directly:
: A text-based playlist format (HLS) that lists multiple small media segments (typically
Do the video segments require specific ?
Create an instruction file telling FFmpeg the exact order of the downloaded chunks, then merge them without losing quality. Generate a file list: ls -1v *.ts | sed "s/^/file '/;s/$/'/" > concat_list.txt Use code with caution. aria2c m3u8
It bypasses standard single-connection speed throttles imposed by servers.
:Save your .m3u8 file locally and use the -i (input-file) flag to treat the segment list as a download queue. aria2c -i your_file.m3u8 -j 10 -x 5 Use code with caution. Copied to clipboard
rm *.ts
aria2c --max-download-limit=5M -i ts_urls.txt In the world of online streaming, the HTTP
What (Windows, macOS, or Linux) are you using to run these commands?
-i segments.txt : Tells aria2 to read the list of files to download. Method 3: Merging the Segments
The short answer is that because it is a general file downloader, not a stream parser . To use it effectively for this purpose, you must pair it with a tool like yt-dlp or ffmpeg . Why aria2c Needs Help
rm -rf "$TEMP_DIR" echo "Done: $OUTPUT_NAME.mp4" Enter the dynamic duo: and m3u8
By default, aria2c uses one connection per server for a single file. However, with HLS streams, you can optimize the download speed. -x sets the maximum number of connections per server, and -s sets the number of connections per single item.
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.
Most people reach for ffmpeg to handle this. But ffmpeg is single-threaded for downloading. Enter : a command-line utility that splits downloads across multiple connections.
-x 16 & -s 16 : Allocates 16 connections per server to maximize bandwidth.
