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Larix Broadcaster is documented for mobile live capture and RTMP/RTMPS publishing, but its reviewed official documentation does not describe selecting and playing a pre-recorded playlist. To stream a playlist of local videos as a YouTube Live program, use an encoder with a documented media-playlist source, such as OBS Studio’s Media Source, and send that encoder’s output to YouTube. Larix can publish a mobile camera feed; do not rely on it as the playlist player.
Can Larix Broadcaster play a pre-recorded playlist?
Not according to the playlist and input features documented in the official Larix materials reviewed. Those materials describe Larix Broadcaster as a mobile app for capturing and publishing live video, including RTMP output to YouTube. They do not document a local prerecorded-playlist input. That is a limit of what the reviewed documentation establishes, not proof that no device-specific integration or workaround exists.
OBS Studio is a documented option for the playlist itself: its Media Source can play local media and offers playlist order and shuffle controls. For this workflow, OBS plays the files and encodes the live program; YouTube receives that output. Larix is relevant if you want to send a live mobile camera feed, not as the verified playlist source. See Larix Broadcaster, its documentation, and the OBS Media Sources guide.
What you need before starting
- A computer with OBS Studio installed, plus the video files you want to play. OBS lists common formats including MP4, TS, MOV, FLV, MKV, AVI, GIF, and WebM; a listed extension does not guarantee every file’s codecs will play correctly in your installed build. Test the full playlist before scheduling a broadcast.
- A YouTube channel enabled for live streaming. YouTube says first-time live-stream enablement may take up to 24 hours, so do not wait until broadcast time to request it.
- The stream URL and stream key for the YouTube stream you plan to use. Copy them from YouTube Studio and keep the key private.
- A reliable upload connection with enough capacity for the encoder’s output, and a playlist that includes the audio you intend to broadcast. YouTube’s current general encoder guidance recommends video and audio formats; Softvelum’s documented YouTube connection example uses video plus audio.
- Permission to use every video and audio track in the playlist. A live broadcast is still subject to YouTube’s copyright and monetization rules; having a copy of a file does not establish that you have streaming rights.
Set up the prerecorded playlist in OBS
- Prepare and test the files. Put the clips in the intended order and play each one locally. Check that picture, sound, aspect ratio, and duration are as expected. If a clip fails or has no audio in OBS, convert or replace it before going live rather than discovering the problem on stream.
- Add a Media Source. In OBS, select or create a scene, then use Sources → + → Media Source. Add the local video file or configure the source’s playlist controls, following the controls available in your installed OBS version. The OBS guide describes playlist ordering and shuffle behavior; confirm the actual sequence in the preview.
- Choose the playback behavior deliberately. Use ordered playback if the program must follow a fixed sequence; use shuffle only if the order can vary. Check the source’s loop and end-of-file behavior in OBS, and monitor a complete playback cycle. A playlist that reaches its final clip may stop unless its playback settings are configured to repeat.
- Confirm audio and the scene layout. Watch OBS’s audio meters while a clip plays and listen to the program output. Ensure the video fills the intended canvas without unwanted black bars or cropping. For a silent program, do not assume YouTube will accept a video-only stream: the documented Softvelum YouTube example specifies video plus audio, and YouTube’s general encoder guidance includes an audio codec.
- Set the stream output. In OBS, open Settings → Stream, select YouTube or the available custom service option, and enter the server URL and stream key from YouTube Studio. The exact service labels can vary by OBS version. Never publish or share a screenshot containing the key.
- Set output to match YouTube’s guidance and your connection. YouTube recommends H.264 video, AAC or MP3 audio, constant bitrate, frame rates up to 60 fps, and a two-second keyframe interval (not more than four seconds). Choose settings your encoder and connection can sustain; do not treat the maximum frame rate as a requirement. Check YouTube’s live encoder settings and bitrates for the current guidance, since recommendations may change.
Connect OBS to YouTube Live and go live
- Create or select the event. In YouTube Studio, open Live Control Room and create a stream or select an existing configured stream. If you schedule the event, use that event’s ingest details and be ready to confirm the broadcast in Live Control Room.
- Copy the correct ingest details. Use the server URL and stream key displayed for that stream in YouTube Studio. YouTube’s encoder instructions explain that these values go into the encoder. Do not substitute a sample URL or reuse a key without confirming it belongs to the intended event.
- Start the encoder and inspect the preview. Start streaming in OBS. YouTube says the preview appears after the encoder begins sending. Check the picture, sound, title, and intended event in Live Control Room; for a scheduled stream, click Go live there when the preview is ready.
- Watch the program, not only the dashboard. Keep an eye on OBS playback and YouTube’s stream health. Confirm that clips advance as intended, audio remains present, and the connection is not dropping frames. If you need the playlist to run unattended, test the complete loop and your computer’s sleep and power settings before relying on it.
- End the broadcast cleanly. Stop the OBS stream and end the event in YouTube Studio as appropriate. YouTube says streams shorter than 12 hours are automatically archived; do not assume a longer stream will be archived in the same way.
YouTube recommends RTMPS, a secure extension of RTMP. Its encoder recommendations are platform guidance, not a guarantee that every device or Larix version exposes every codec or setting. Check the current YouTube encoder recommendations before a consequential broadcast.
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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- 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.
Where Larix Broadcaster fits
Softvelum documents Larix Broadcaster for iOS and Android, with RTMP publishing and SSL support for RTMPS. Its documentation gives rtmp://a.rtmp.youtube.com/live2 as an example YouTube server address and describes combining the server address with a stream key. For a real broadcast, use the current server URL and key shown in YouTube Studio instead of treating that example as a universal endpoint.
Softvelum’s YouTube example uses a video-plus-audio connection. It supports a mobile live-capture-to-YouTube workflow; it does not establish that Larix can select and play a prerecorded playlist. Softvelum lists iOS 16.0 and Android 7.0 compatibility on its product page, but app availability and compatibility can change, so check the current listing for your device. See the Larix product page, Larix documentation, and Softvelum’s Grove guide.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 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.
OBS playlist or Larix: which approach matches the job?
| Approach | Prerecorded playlist input | YouTube publishing | Best fit |
|---|---|---|---|
| Larix Broadcaster | A local prerecorded-playlist input is not documented in the reviewed official material. | Softvelum documents RTMP/RTMPS publishing and a YouTube server/key pattern. | Live mobile camera capture and contribution. |
| OBS Media Source | OBS documents local media and playlist controls, including ordering and shuffle. | Connect the encoder to YouTube with the stream’s server URL and key. | Playing local prerecorded videos as the YouTube Live program. |
Choose based on the source you need to broadcast: local files in a sequence call for a documented media-playlist source; a live phone camera feed is the role documented for Larix. In either case, check audio, ingest settings, and the event preview before the audience sees the stream.
Common problems and fixes
- Larix has no playlist control you can find: the reviewed official Larix documentation does not document prerecorded playlist input. Use an encoder such as OBS with a Media Source playlist for local files.
- YouTube shows no preview: confirm OBS is sending, and that the server URL and key match the intended stream in YouTube Studio. Check the encoder connection and wait for the preview to appear after sending begins.
- The scheduled event has a preview but is not public: scheduled streams may require selecting Go live in Live Control Room after checking the preview.
- A clip will not play or its audio is missing: test the file in the installed OBS build, verify the Media Source configuration and audio meters, then replace or convert the problematic clip. Do not assume that a supported filename extension guarantees codec compatibility.
- The playlist stops at the last file: inspect the Media Source’s playlist and repeat/loop behavior, then test through the end of the sequence before broadcasting.
- The picture stutters or the stream health degrades: reduce output demands to a level the computer and upload connection can sustain; check that bitrate is constant and that keyframe interval follows YouTube’s guidance. A recommendation of up to 60 fps is an upper bound, not a target every setup must use.
- Live streaming is unavailable on the channel: enable live streaming in advance. YouTube says first-time activation may take up to 24 hours.
- The stream ends but no archive appears as expected: YouTube’s stated automatic archive condition is streams under 12 hours. For a longer broadcast, do not rely on that rule to ensure an archive.
Or let it run in the cloud
If the goal is a prerecorded video or playlist that stays live on YouTube without leaving a home computer running, StreamNeo is a cloud option. Upload the recording or build a playlist, add your YouTube stream key once, and go live. StreamNeo plays uploaded videos; it does not broadcast a live camera, and it streams to YouTube only.
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Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 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.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- 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
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- 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.
- Nothing has to stay on at home: playback runs in the cloud, so your computer can be off.
- Any quality up to 4K 60fps streams as uploaded, at one flat price per slot with no re-encode or quality tiers.
- Automatic recovery is included if YouTube drops the stream.
- The first day is free with no card, one free day per account.
- Monthly: $9.99 per month.
Start your free StreamNeo day.
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