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 →Most often, FFmpeg stops repeating a video because -stream_loop -1 is in the wrong place or applies to a different input than intended. Put it immediately before the video file’s -i option. If FFmpeg keeps running but YouTube’s live preview stalls, the problem may instead be pacing, a separate audio input, encoding settings, or the connection to YouTube’s ingest server. Without the command and logs, no single cause can be diagnosed.
Check whether FFmpeg exited or YouTube stopped receiving usable media
First distinguish a process failure from a delivery problem. If FFmpeg has exited, inspect its exit status and final error line. If it is still running but YouTube’s preview or live indicator has stalled, check the stream-health messages in YouTube Live Control Room and the stability of the connection.
That distinction narrows the search: an exited process points toward the input, options, mappings, or an FFmpeg error; a running process with stalled playback calls for checking output flow and YouTube’s ingest status.
Put the loop option before the input it should repeat
FFmpeg options generally apply to the next input or output. The -stream_loop option applies to the input file that follows it; -stream_loop -1 means loop that input indefinitely. Place it before the corresponding -i:
#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.
-stream_loop -1 -i input.mp4If the option appears before another input, it loops that input instead. If it appears after the target -i, it does not configure that earlier input. See the FFmpeg documentation for option scope and loop behavior.
Check every input, including separate audio
Looping the video does not automatically establish that a separate audio file repeats too. If your command uses multiple inputs, inspect each input’s duration, its own input options, and the stream mappings. Also look for duration or “shortest output” options that may end output when one input finishes.
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.
A 2022 post in the FFmpeg-user archive describes a user’s setup involving looping video, a separate MP3 input, CPU load, and loss of YouTube’s live indicator. It illustrates why multi-input setups are worth checking; one report does not establish a general audio or CPU defect.
Pace prerecorded video like a live input
A file can be read faster than real time unless you pace it. FFmpeg documents -re as reading at the input’s native frame rate (equivalent to -readrate 1); it can be useful when output packet flow needs to match live delivery. Put it before the prerecorded input’s -i:
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.
-re -stream_loop -1 -i input.mp4Do not blindly apply -re to an actual live capture input. Check the FFmpeg documentation for the installed build’s supported options and their exact behavior.
Use a command shape that keeps input and output options clear
This illustrates option order for one local prerecorded video. It is not a complete, tested command: choose mappings, encoders, bitrate, keyframe interval, and the ingest URL based on your media and YouTube’s selected stream settings.
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
ffmpeg -re -stream_loop -1 -i input.mp4 [mapping and encoding options] -f flv "RTMP(S) ingest URL/STREAM_KEY"Use the ingest URL supplied by YouTube and keep the stream key private. Confirm that your FFmpeg build supports the flags you use; builds and commands can differ.
Check YouTube’s encoder settings and stream health
A correct loop command does not guarantee successful delivery. YouTube’s current live encoder guidance specifies RTMP or RTMPS ingest, H.264, H.265, or AV1 video, up to 60 fps, and constant bitrate (CBR). It recommends a two-second keyframe interval and says not to exceed four seconds. Its bitrate recommendations depend on codec, resolution, and frame rate, so use the matching row in YouTube’s live encoder settings guide rather than treating one bitrate as universal.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Best 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.
| YouTube H.264 setting | Published bitrate guidance |
|---|---|
| 720p at 30 fps | 3 Mbps minimum; 8 Mbps recommended |
| 1080p at 30 fps | 5 Mbps minimum; 14 Mbps recommended |
| 1080p at 60 fps | 6 Mbps minimum; 17 Mbps recommended |
| Keyframe interval | 2 seconds recommended; do not exceed 4 seconds |
| Stereo audio | 128 Kbps recommended |
These are figures on YouTube’s live encoder settings page, accessed October 3, 2026; they are recommendations, not guarantees. The page lists AAC or MP3 audio. Check its current table for the applicable codec, resolution, and frame-rate combination before changing bitrate.
YouTube advises testing with audio and movement similar to the planned stream, then monitoring stream health and messages during the event. Read the guidance on the YouTube Help page and watch Live Control Room for ingest warnings.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshoot by symptom
| What you see | What to check | Next action |
|---|---|---|
| FFmpeg exits when the video ends | Whether -stream_loop -1 is before the intended video input’s -i |
Move the option directly before that input and review FFmpeg’s final error and exit status. |
| Video repeats, but audio ends or changes unexpectedly | Separate audio input duration, loop options, stream mappings, and duration or shortest-output options | Confirm that each intended input continues for the whole output. |
| FFmpeg runs, but YouTube’s preview or live indicator stalls | Live Control Room stream-health messages, connection stability, and whether media is paced | Check ingest status and consider -re for prerecorded input. |
| YouTube reports encoder or stream warnings | Codec, resolution, frame rate, CBR, keyframe interval, and the matching bitrate row | Align the output with YouTube’s current guidance and available upload capacity. |
For a specific diagnosis, the useful evidence is the full command, FFmpeg’s final log lines and exit status, the list and duration of every input, and YouTube’s stream-health status. A symptom alone cannot identify which failure occurred.
Or let it run in the cloud
If the goal is a prerecorded video that keeps a YouTube channel live, StreamNeo is a cloud alternative: upload the video, add your YouTube stream key, and go live. It loops uploaded videos; nothing has to stay on at home. Each slot streams the upload as made, up to 4K 60fps, at one flat price per slot. If YouTube drops the stream, StreamNeo automatically recovers. The first day is free with no card. Monthly pricing is $9.99 per month. StreamNeo is for YouTube streams, not camera broadcasts. See StreamNeo, or start the free first 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.
