Use FFmpeg’s concat demuxer: put the video paths in a text file, one file directive per video, then give that playlist to FFmpeg as its input. This sends the files sequentially to YouTube Live from your EC2 instance. It works most simply when the clips have compatible streams, codecs, and time bases; clips that differ may need to be normalized or transcoded first.
1. Prepare the videos and playlist
Place the videos on the EC2 instance and create a plain-text playlist, for example /path/to/playlist.txt:
file '/path/to/video-01.mp4'
file '/path/to/video-02.mp4'
file '/path/to/video-03.mp4'FFmpeg reads the entries in order. Use paths that exist on the instance and ensure the account running FFmpeg can read both the playlist and the media files. The concat demuxer is intended for files with matching stream layouts, codecs, and time bases; listing files does not make incompatible media seamless or compatible. See the FFmpeg documentation.
When clips differ
Inspect the files before streaming. If their video or audio streams, codecs, or time bases differ, normalize them to a common format before concatenating. Re-encoding can align output properties but uses CPU; stream copy can reduce encoding work when the source streams already meet the concat requirements and YouTube output settings. These are engineering trade-offs, not a guarantee of a particular EC2 instance’s capacity. A practical community discussion also describes pre-transcoding heterogeneous files, but treat it as community advice rather than a normative guarantee: FFmpeg-user discussion, September 22, 2024.
The Tool Desk
Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
2. Get YouTube’s ingest URL and stream key
- Open YouTube Live Control Room and create or select the live stream.
- Copy the ingest URL and stream key shown in the stream settings. Use those values rather than guessing an endpoint; YouTube explains the stream key’s role and how to manage stream settings in its live stream settings help.
- Use RTMPS when the URL and your FFmpeg build support it. YouTube recommends RTMPS, which encrypts data in transit to Google’s servers; see YouTube’s RTMPS setup instructions.
Treat the stream key like a password. Keep it out of shared scripts, public logs, screenshots, and shell history. If it is exposed, reset it in YouTube’s stream settings.
3. Configure the encoder and start FFmpeg
This is a command skeleton, not a tested, one-size-fits-all command. Set its output codec, bitrate, resolution, frame rate, keyframe interval, audio handling, and ingest URL for your media and stream. Protect the key by supplying it through a restricted environment variable or another private secret-management method rather than embedding it in a script you share.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
ffmpeg -re -f concat -safe 0 -i /path/to/playlist.txt
-c:v libx264 -c:a aac
-f flv "$YOUTUBE_INGEST_URL/$YOUTUBE_STREAM_KEY"-re reads the files at their intended playback rate rather than as fast as possible. -f concat selects the concat demuxer. -safe 0 permits paths the demuxer would otherwise reject as unsafe, so use it only with a playlist you control. The example selects H.264 video and AAC audio, but you must confirm that the installed FFmpeg build supports the chosen encoder and that the resulting settings suit the files and YouTube ingest.
Choose stream settings for the actual output
YouTube’s current encoder guidance lists H.264, H.265 (HEVC), and AV1 for RTMP/RTMPS, frame rates up to 60 fps, CBR bitrate encoding, AAC or MP3 audio, and a recommended two-second keyframe interval that should not exceed four seconds. Match the bitrate to the specific codec, resolution, and frame-rate row in YouTube’s live encoder settings. For example, its H.264 1080p30 row gives 5 Mbps minimum and 14 Mbps recommended; those figures are specific to that row and are YouTube recommendations, not a promise that an EC2 instance or network path can sustain the output.
Recommended Free Tools
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
YouTube recommends upload capacity with 20% headroom over the combined primary and backup stream bitrate. On EC2, check sustained outbound throughput and encoder load using the intended media and settings. Instance needs vary with resolution, codec, encoding preset, number of simultaneous streams, and whether you transcode or copy streams, so the available information does not establish a suitable instance type. See YouTube’s streaming tips.
4. Verify playback and plan the run length
Start FFmpeg and check YouTube Live Control Room for an incoming signal and stream-health messages. Confirm that the expected clip is playing and that audio is present before relying on the stream. The playlist processes entries sequentially; it does not, by itself, establish that a stream loops forever or that edits to the playlist will be picked up while FFmpeg is running. If you need a recurring or dynamically updated playlist, verify that behavior in your own workflow rather than assuming it.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
YouTube says streams under 12 hours are automatically archived. Do not treat that as an archive guarantee for longer broadcasts; check Live Control Room behavior for the duration you plan. See YouTube’s encoder live-stream setup help.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.5. Troubleshoot common failures
- A later clip fails or the transition has timestamp artifacts: Confirm that the file paths are valid and the clips have matching stream properties. FFmpeg uses file durations to adjust timestamps between concat inputs; inaccurate durations can cause artifacts. Review the concat demuxer documentation.
- FFmpeg rejects the playlist or a path: Check playlist syntax, quoting, file permissions, and whether the path is accepted as safe. Use
-safe 0only for a playlist you control. - YouTube does not detect or accept the feed: Recheck the ingest URL and key in Live Control Room, protocol support in your FFmpeg build, and output codec and bitrate. Read the stream-health messages and keep credentials out of any logs you share. See YouTube’s stream settings help and encoder settings.
- The stream buffers or drops: Compare the output bitrate with sustained outbound capacity and retain YouTube’s recommended bandwidth margin. Check both network throughput and encoder load on the instance.
- The playlist does not repeat or reflect a new entry: The concat-demuxer guidance cited here establishes sequential reading, not live playlist refresh or infinite-loop behavior. Plan and test a restart or other playlist-management mechanism if your use case requires it.
6. Keep the content eligible to stream
Only include videos you have the rights to broadcast, including any music, game footage, or other embedded material that requires permission. Review YouTube’s current rules for live content and reused material before scheduling a playlist; a technically healthy encoder does not establish that the content is permitted. StreamNeo also provides a copyright safety checklist.
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Or let it run in the cloud
If the goal is to keep a YouTube channel live without maintaining an EC2 encoder, StreamNeo is a cloud service for looping uploaded videos and playlists. Upload the recording or build a playlist, add your YouTube stream key once, and go live. Nothing has to stay on at home; StreamNeo streams the uploaded quality up to 4K 60fps at one price per slot, automatically recovers if YouTube drops the stream, and the first day is free with no card. The monthly option is $9.99 per month. It is for uploaded videos, not a live camera feed, and streams to YouTube only. Start the free day.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
