In OBS Studio, open Settings > Video to set the Base (Canvas) Resolution and Output (Scaled) Resolution separately. The canvas is the workspace for arranging your sources; the output setting determines the pixel dimensions OBS sends to YouTube Live.
Changing only the output resolution does not require you to realign sources. Changing the base canvas can alter how a scene fits, so it may mean resizing or repositioning elements. Choose each setting for its job rather than treating one resolution pair as a universal preset.
Find the video settings
Open OBS and select Settings. In the settings window, choose Video from the left-hand list. The two resolution fields are near the top: Base (Canvas) Resolution and Output (Scaled) Resolution. You can also set Common FPS Value on this page.
Make a note of your current values before changing them, especially if the scene has been carefully composed. If a later adjustment looks wrong, knowing the previous settings makes it easier to restore the working layout. Change one setting at a time, then inspect the preview before going live.
The settings page does not decide what belongs in your scene. Sources such as a camera, image, video, browser element or text layer are placed and sized in the canvas. The video settings tell OBS the size of that workspace and the size of the encoded picture it produces.
Canvas and output have different jobs
Think of the base canvas as the layout surface. It gives OBS the coordinate space in which you position and size sources. OBS says it usually matches your monitor display or game resolution, but that is a starting point, not a rule: choose a canvas that suits the material and scene you need to build.
The output resolution is the dimensions of the video sent from OBS to the stream or recording. In its overview guide, the OBS Project describes Output (Scaled) Resolution as the stream output resolution, such as 720p or 480p. Enter the outgoing dimensions in this field, not in the canvas field, when you want to keep your existing layout and change what is sent.
A lower output resolution than the canvas asks OBS to scale the composed picture down. This may reduce the work of encoding and can suit a connection that should not carry a larger stream, but it also means less fine detail reaches viewers. Scaling is not a substitute for choosing a frame rate or bitrate your equipment and upload can sustain.
The reverse distinction matters when troubleshooting. Changing just Output (Scaled) Resolution leaves the scene workspace in place; OBS does not document that change as one that requires source realignment. Changing the base canvas changes the workspace itself. A source that was positioned against one canvas may no longer sit where you expect against another, so inspect and adjust the scene after changing it.
Choose an output for YouTube Live
Set Base (Canvas) Resolution for the space in which you want to compose the scene. Then set Output (Scaled) Resolution to the size you want YouTube to receive. Common dimensions in the OBS field include 1280×720 and 1920×1080, but which one to use depends on content detail, movement, upload capacity and the computer’s ability to render and encode.
Resolution is only one part of the decision. At the same resolution, 60 frames per second carries more frequent motion updates than 30, while OBS cautions that 60 fps can be substantially more taxing. A mostly static prayer image or study timetable may not benefit from the same frame rate as a fast-moving game or sports feed. Choose a combination you can keep stable, and test it with the kind of movement your channel actually shows.
YouTube’s live encoder settings include recommended H.264 ingestion bitrates for combinations of resolution and frame rate. For example, the current guidance accessed in 2026 lists 8 Mbps for 720p at 30 or 60 fps, 14 Mbps for 1080p at 30 fps, and 17 Mbps for 1080p at 60 fps. These are YouTube’s recommendations for those H.264 live combinations, not a promise that a connection at that rate will be stable. Check the current table for your selected codec, resolution and frame rate rather than applying one bitrate to every stream.
YouTube says it normally detects resolution and frame rate from the encoder. If you use a custom stream key with manual settings enabled in Live Control Room, manual selection is available there. For documented RTMP/RTMPS settings, YouTube specifies CBR and recommends RTMPS; you do not need to alter every advanced field just because you changed the OBS output size. Read YouTube’s current guidance and match the settings you actually use.
A sensible way to decide is to start with the clearest output that your system and connection can sustain consistently, then test. If viewers need to read small text or see fine details, a higher resolution may matter. If the picture is mostly a static background, steadiness may matter more than extra detail. A higher resolution or frame rate can require more upload bandwidth and rendering or encoding capacity, so judge the whole combination rather than one number in isolation.
Example: a 1080p canvas and 720p output
Suppose your scenes are already arranged on a 1920×1080 canvas, and you want to send a 1280×720 stream. Leave Base (Canvas) Resolution at 1920×1080 and select 1280×720 for Output (Scaled) Resolution. OBS scales the finished scene down for output; your source positions remain based on the same 1080p workspace.
This is a useful illustration of the two fields, not a recommended setting for every channel. A channel with fine lettering, detailed artwork or a source that is naturally 720p may make a different choice. So might a channel whose computer or connection cannot reliably handle a 1080p output. The right pair depends on the source, the intended viewing experience and the results of a test.
If you instead change the canvas to 1280×720, you have changed the space in which sources are placed. OBS warns that changing the base canvas later may mean realigning or resizing sources. That is a separate action from scaling the same 1080p scene to a 720p output. Do not change the canvas simply because you want the outgoing stream to be smaller.
For a devotional loop, for example, you might have a full-frame image, a logo and a line of text. With the canvas unchanged, lowering the output sends a smaller version of that composition. If you reduce the canvas as well, check the logo and text positions and their size in the preview: their relationship to the frame may have changed. The same distinction applies to a local news loop with lower-third titles or a study stream with small on-screen notes.
Inspect scaling and scene composition
After choosing the output resolution, look at the OBS preview. Check that the whole scene remains visible, that text is legible at the intended size and that no source has been clipped or left with an unwanted border. These checks matter particularly when sources have different proportions: a wide background, a portrait phone clip and a square logo will not all fill a frame in the same way.
If a source looks cropped or stretched, inspect that source’s transform and fit behaviour rather than immediately changing the canvas. A composition problem can be specific to one image or clip. Scaling the finished scene down changes its output dimensions; it does not automatically decide how each differently shaped source should fit inside the scene.
If you did change the base canvas, treat the scene as needing a visual review. Check each scene, not just the one open when you changed the setting. Confirm that titles, logos, borders and image edges sit where you intended. Keep the previous canvas value available until you know the revised layout works.
For persistent OBS load problems, lower the output resolution or frame rate first and test again. The OBS Project’s encoding performance troubleshooting guide lists both as ways to reduce rendering or encoding work, and advises trying 30 fps if 60 fps is unstable. Reducing the canvas is a more disruptive step: OBS says it complicates capture and asset management and suggests it only when resources are severely constrained. If you take that step, expect to review source sizes and positions.
When a channel needs to repeat a fixed file rather than build scenes in OBS, preparation of that file still matters; see this guide to preparing video files for a YouTube loop stream. If OBS itself is consuming too much of a computer’s capacity, the separate OBS CPU usage guide can help you assess that issue without confusing it with canvas placement.
Test the outgoing stream
Apply the settings and run a test before relying on them for a scheduled broadcast. Include audio and representative motion: a still image alone will not reveal every issue with moving footage, scrolling text or a camera source. Check the OBS preview, watch the stream as a viewer if possible, and look for soft text, stutter, black gaps or a mismatch between the intended scene and the received picture.
YouTube recommends testing before going live and monitoring stream health and messages during the event. Its Live Control Room guidance explains where to check stream status. A successful OBS preview is useful, but it does not by itself confirm that the full route to YouTube is behaving as intended.
If the stream stutters or OBS reports encoding overload, change one variable and test again. Try a lower output resolution or frame rate before redesigning the scene. If you move from 60 to 30 fps, assess whether the motion still looks acceptable. If you reduce output resolution, check small text and detailed graphics. The aim is a stable picture at a useful quality, not the largest setting the menu permits.
Also test the upload connection at the time and place you expect to stream. YouTube recommends a speed test and matching its suggested bitrate to the codec, resolution and frame rate. A speed-test result is not a guarantee of a steady stream: other household or office traffic and ordinary variation can affect what is available to OBS. Leave headroom rather than selecting a bitrate that consumes the full measured upload capacity.
For a long-running channel, a test should cover the actual schedule and source changes you expect. A planned scene transition can reveal a problem that a short static test misses. The guide on finding the cause of an OBS playlist stream going offline after a scene change is relevant if a transition, rather than the resolution itself, coincides with a drop.
If you are running a fixed uploaded video continuously and do not want to keep a computer on for OBS, StreamNeo removes that particular burden by turning the uploaded file into a YouTube live stream that can run with your computer switched off. It is YouTube-only; it does not change the need to choose a suitable source file or check the result on YouTube.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Does changing Output (Scaled) Resolution move my OBS sources?
No. Changing only the output resolution changes the dimensions OBS sends, not the canvas workspace where sources are arranged. You may want to inspect image sharpness and text legibility after scaling, but OBS’s documented canvas realignment concern applies to changing the base canvas.
Should my base canvas always be 1920×1080?
No. Choose a canvas that suits the sources and scene layout you need to work with; OBS notes it usually matches a monitor display or game resolution. A 1920×1080 canvas with a 1280×720 output is one example of keeping a larger layout while sending a smaller stream, not a requirement.
What should I lower if OBS reports encoding overload?
Try lowering Output (Scaled) Resolution or the frame rate, then test again with representative motion. OBS specifically suggests trying 30 fps if 60 fps is unstable. Reduce the base canvas only if the less disruptive changes are not enough, because you will need to review and potentially rearrange sources.
Does YouTube require me to enter a resolution manually?
YouTube normally detects the resolution and frame rate from the encoder. Manual selection is available in Live Control Room when using a custom stream key with manual settings enabled. Check YouTube’s current instructions for your setup, and test the stream before depending on it.