File Format & Compatibility

How to Convert MP4 to WebM for SharePoint Spaces 360-Degree Video

Partner Editor Sep 28, 2026 869 views

Question details

The user needs a way to use affordable 360-degree cameras that shoot in MP4 format for SharePoint Spaces, which specifically recommends WebM video using the VP9 codec.

How to Convert 360-Degree Camera Footage to WebM for SharePoint Spaces

Product: SharePoint Spaces
Device & OS: not provided
Scenario: Preparing 360-degree video footage for upload and interactive display in SharePoint Spaces without purchasing expensive proprietary cameras.
Observed behavior: Affordable cameras record in MP4 or proprietary formats, but SharePoint Spaces recommends WebM format with the VP9 codec for optimal performance and playback.

Before you start

Ensure your 360-degree camera outputs standard equirectangular video, and download a reliable video conversion tool capable of exporting to the VP9 WebM format.

Solution 1Recommended

Shoot in MP4 and Convert to VP9 WebM

Use any budget-friendly 360-degree camera to record in MP4, then use video conversion software to encode it into the recommended WebM format for optimal SharePoint Spaces compatibility.

SharePoint Spaces relies heavily on the VP9 codec within a WebM container for smooth, high-quality 360-degree playback. Since most affordable consumer cameras natively record in MP4 (H.264/H.265), converting the file is the most cost-effective workaround.

Record and export your MP4 footage

Use your chosen affordable 360-degree camera to record your environment. Stitch and export the final equirectangular video as a standard MP4 file using the camera's accompanying software.

Launch a VP9-compatible video converter

Open a video conversion tool that supports WebM encoding. HandBrake, FFmpeg, or dedicated web-based converters are popular choices that support the necessary VP9 codec.

Configure WebM and VP9 output settings

Import your MP4 file into the converter. Change the output container format to WebM and select the VP9 video codec. Ensure you match the original 360-degree resolution (usually 4K or higher) and set a high bitrate to preserve visual quality.

Convert and verify the metadata

Start the conversion process. Once the WebM file is generated, ensure that the spherical 360-degree metadata has been retained so SharePoint Spaces correctly identifies it as a 360-degree video before uploading.

Metadata Verification: If your video appears flat rather than spherical after conversion, you may need to use a tool like the Spatial Media Metadata Injector to re-apply the 360-degree tags to your new WebM file.

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Frequently Asked Questions

Why does SharePoint Spaces recommend WebM with the VP9 codec?

WebM using the VP9 codec is recommended by Microsoft because it provides excellent compression rates while maintaining high-quality visuals, ensuring heavy 360-degree videos stream smoothly in web-based environments.

Can I upload MP4 files directly to SharePoint Spaces?

While some MP4 files might upload successfully, they often suffer from buffering issues, poor performance, or failure to render spherically. Converting to VP9 WebM ensures maximum compatibility and smooth playback.

What does 'equirectangular' mean for 360-degree video?

Equirectangular is the standard projection format that maps a spherical 360-degree environment onto a flat, 2D rectangular aspect ratio. Platforms like SharePoint Spaces use this format to seamlessly wrap the video around the viewer.

How do I prevent my 360 metadata from being lost during conversion?

Some video converters strip metadata during the encoding process. You can use free utilities like the Spatial Media Metadata Injector after converting your video to re-inject the necessary spherical tags into your WebM file.

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