Add data points for Chrome 136 MediaRecorder H26x codec support #27142
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caugner
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Jun 27, 2025
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We have not yet decided how to record media codecs, see: #6971
@chrisdavidmills Can you please either add your requirements/thoughts to that issue, or open a separate issue if you prefer so?
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Summary
Chrome 136 adds support to the MediaRecorder API for HEVC encoding, introducing the hvc1.* codec string, and adds new codecs (hev1.* and avc3.*) supporting variable resolution video in MP4. See https://chromestatus.com/feature/6375884229181440 for more details.
This PR adds a data point for this support to the
MediaRecorder()constructor, and to theMediaRecorder.isTypeSupported()static method.The
MediaRecorder.mimeTypeproperty is also related, but it only returns a previously-set value rather than setting a MIME type, so I decided to not add a data point there.Test results and supporting details
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