Using aria2c for M3U8 (HLS) streaming involves a hybrid approach, where aria2c acts as a fast downloader for segmented
files, often requiring external tools like FFmpeg for concatenation or yt-dlp for parsing. While a manual method involves using to download segments followed by to combine them, utilizing yt-dlp --external-downloader aria2c
is recommended for automated decryption and handling complex streams. Read a full guide at Stack Overflow
An M3U8 is a UTF-8 encoded playlist file used by HLS streaming. Instead of one large video file, the stream is broken into hundreds of small .ts (Transport Stream) segments. The M3U8 file lists URLs to these segments.
If the stream requires authentication:
aria2c --header="User-Agent: ..." --header="Referer: ..." -i ts_urls.txt
curl -s "https://example.com/video.m3u8" | head -n 20
If you see #EXT-X-STREAM-INF, it's a master playlist. Look deeper for a child m3u8 with higher resolution.
Assume this m3u8 URL: https://cdn.example/live/stream.m3u8
# 1. Download all segments with aria2c, max speed
aria2c --check-certificate=false \
--max-connection-per-server=16 \
--split=16 \
--min-split-size=1M \
--console-log-level=error \
--summary-interval=0 \
-i <(curl -s "https://cdn.example/live/stream.m3u8" | grep -E "segment_[0-9]+\.ts" | sed 's|^|https://cdn.example/live/|') \
-d ./live_vid
ffmpeg is a Swiss Army knife, but its downloader is slow. aria2c is a dragster. For batch-downloading M3U8 video segments, combining them is the ultimate power move.
Next time you see an M3U8 stream, don't wait — split it and race through with aria2c. aria2c m3u8
Happy downloading 🚀
Have your own aria2c + M3U8 trick? Share it in the comments below.
aria2c is a popular command-line download manager that supports various protocols, including HTTP, HTTPS, and FTP. When it comes to downloading m3u8 playlists, which are often used for streaming live TV channels or VOD content, aria2c can be a powerful tool. Here’s a proper write-up on how to use aria2c to download m3u8 streams:
ffmpeg -i complete.ts -c copy -movflags +faststart final.mp4 Using aria2c for M3U8 (HLS) streaming involves a
Some advanced users pipe through a custom script, but the cleanest "single command" approach uses ffmpeg with aria2c as its downloader via a script:
Create aria2_downloader.sh:
#!/bin/bash
aria2c -x 16 -s 16 -o "$3" "$1"
Then:
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
This tells ffmpeg to delegate chunk downloads to aria2c. Works beautifully, though support varies by ffmpeg build. An M3U8 is a UTF-8 encoded playlist file
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