Windows
H.264 works everywhere. H.265 and AV1 depend on the browser, GPU, and (for HEVC) optional Microsoft Store extensions.
Chrome / Edge
| Codec | WebRTC |
|---|---|
| H.264 | Yes |
| H.265 | Yes if GPU + HEVC extensions |
| AV1 | Yes (v90+; hw on recent GPUs) |
If H.265 is missing:
- Install HEVC Video Extensions
- Update GPU drivers
- Check
chrome://gpuoredge://gpu - Restart browser after changes
Firefox
| Codec | WebRTC |
|---|---|
| H.264 | Yes |
| H.265 | No |
| AV1 | Yes (recent versions) |
- For HEVC, use Chrome, Edge, or Safari instead.