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To mix portrait and landscape property-tour clips in one YouTube Live broadcast, choose the live output format before going live, then frame each clip without stretching it. YouTube’s Live Control Room supports horizontal 16:9 and vertical 9:16 outputs; its vertical view can use a center crop, fit-to-phone-width, or stacked layout. The layout controls help, but the playlist playback and transitions depend on the encoder or software you choose, so test the full sequence before broadcasting.
Decide which live formats you need
A single horizontal stream is simpler to compose, but portrait footage may occupy only part of the frame unless you design a background or choose a crop. YouTube Live Control Room can also provide horizontal and vertical versions together. YouTube describes the formats as 16:9 horizontal and 9:16 vertical. Its default vertical view is a center crop of the horizontal output, but you can change the vertical layout and adjust its zoom and position. See YouTube’s live-streaming setup guidance.
In a dual-format live, mobile viewers watching in the Shorts feed see the vertical version; other viewers see horizontal. Both formats use the same live URL and chat. YouTube’s comparison says clickable chat and channel-description links are available for horizontal streams, but not in the vertical live feed. YouTube says vertical-only metrics may take up to 24 hours to become available. These audience details are described in YouTube’s format comparison.
Prepare the property-tour clips
- Sort clips by orientation. Make portrait and landscape groups, and note each clip’s dimensions. Identify details near the edges—such as a doorway, window, room boundary, or facade edge—that must remain in frame. This is a practical review step, not a claim that YouTube automatically detects or reframes every clip.
- Choose the intended output. Decide whether you need one horizontal feed or simultaneous horizontal and vertical feeds. If using YouTube’s Live Control Room vertical layout, set it before starting: YouTube says you cannot add the vertical format after the live stream has begun.
- Build a sample composition for each mismatch. Preview portrait footage in the horizontal canvas and landscape footage in the vertical canvas. Consider a background or stacked composition where fitting the whole image leaves unused space; use a crop only when the lost edges do not remove useful property context.
- Preserve proportions. Do not stretch footage to fill the canvas. Stretching distorts the image; cropping cuts off content. OBS’s aspect-ratio guide recommends filling unused space with other content or designing the scene around the source rather than distorting it.
- Review transitions and movement. Test representative clips with camera movement, audio, and transitions. Check that the right footage reaches each output and that important spatial details remain visible throughout the sequence.
Set up the YouTube layouts
Using YouTube Live Control Room’s dual-format behavior
Configure the horizontal and vertical versions in Live Control Room before going live. Inspect the vertical preview and select the treatment that suits the footage: center crop, fit to phone width, or stacked. Adjust zoom and position where available, then review the result against the actual property details rather than assuming the default center crop will preserve them.
#1 Best Overall
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These layout options determine how the outputs are framed; they do not establish that YouTube itself will loop a playlist of prerecorded clips or automatically switch to a purpose-built composition for every clip. Choose and verify the playback and scene-switching workflow separately.
Sending separate outputs from an encoder
- In Live Control Room, select the encoder and RTMP(S) path for dual streaming, following YouTube’s encoder instructions.
- Select the second stream key for the vertical output.
- Route landscape content to the horizontal key and correctly formatted portrait content to the vertical key. Confirm the orientation and framing for each feed in a test before the public broadcast.
Maintaining two keyed outputs adds setup and checking work: you must ensure that each key receives the matching format. The available YouTube guidance describes the dual-output setup, but does not certify how a particular encoder handles orientation changes in a mixed playlist.
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Encoder settings and a preflight test
When you use an encoder with Live Control Room, set resolution, frame rate, and bitrate in the encoder. YouTube detects those settings and transcodes the feed for different devices and network conditions. Its current encoder settings and bitrate guidance lists H.264, H.265/HEVC, and AV1 for RTMP(S), supports frame rates up to 60 fps, recommends CBR and RTMPS, and recommends a two-second keyframe interval that should not exceed four seconds.
Bitrate recommendations vary by codec, resolution, and frame rate, so consult YouTube’s current table for your actual output instead of treating one figure as universal. For example, YouTube lists 10 Mbps for AV1/H.265 and 14 Mbps for H.264 at 1080p, 30 fps. Those are recommendations, not a guarantee that your connection or encoder will sustain the stream.
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Rank #3
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- Run a private or otherwise appropriate test stream with representative clips, motion, audio, and transitions.
- Check that both outputs, if used, receive the intended orientation and that the layouts retain important property details.
- Confirm the encoder’s resolution, frame rate, bitrate, codec, keyframe interval, and RTMPS configuration against YouTube’s current settings guidance.
- Check your available upload connection and monitor YouTube’s stream-health indicators and messages during the test and broadcast. YouTube recommends testing before an event and monitoring stream health.
What YouTube does—and does not—provide for a prerecorded loop
YouTube’s live-format instructions explain how to create and frame horizontal and vertical outputs, but they do not prescribe a native method for continuously looping a playlist of prerecorded property clips. Nor do they certify seamless switching between portrait and landscape scenes for a particular encoder. Select playback software or an encoder workflow separately, then verify the complete playlist, orientation changes, and transitions in a test stream. YouTube’s LiveStreams API documentation covers ingestion and stream health; it is not a recipe for a prerecorded playlist loop.
Copyright and channel-policy checks
Before broadcasting, make sure you have the rights needed for every video, photograph, music track, voiceover, and other element in the loop. Property footage can include material owned by someone else, such as licensed music or a photographer’s work; permission to show a property does not automatically establish rights to every asset in the recording. Also review YouTube’s current live-streaming and channel policies for your use case. A technical test cannot establish that the content complies with copyright rules or other platform policies.
Rank #4
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Or let it run in the cloud
If your goal is to keep prerecorded property footage live on YouTube without leaving a computer running, StreamNeo is a cloud option: upload your recording or build a playlist, add your YouTube stream key, and go live. Your home computer and connection do not have to stay on. StreamNeo loops uploaded videos to YouTube, supports the quality you upload up to 4K 60fps at one flat price per slot, and automatically recovers if YouTube drops the stream. The first day is free with no card required; the monthly option is $9.99 per month. StreamNeo plays uploaded videos rather than going live from a camera, and it streams to YouTube only. Start your free day with StreamNeo.
Quick Recap
Best Value
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