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Codec: avc1.4d1432
84.9% Encoder Support
53,320 of 62,801 sessions supported encoding
99.92% Decoder Support
11,870 of 11,879 sessions supported decoding
Codec Specifications
| Codec Family |
AVC (H.264) |
| Profile |
Main |
| Level |
5 |
| Maximum Resolution |
4K (4096×2176) |
| Maximum Bitrate |
135 Mbps |
VideoEncoder Support Matrix
Browser × Platform encoder support from 62,801 test sessions. Browser detection based on user agent strings.
| Browser |
Windows |
macOS |
iOS |
Android |
Linux |
 Chrome/Chromium |
99.2%
27,526 / 27,748
|
99.95%
4,337 / 4,339
|
— |
97.64%
11,804 / 12,089
|
97.79%
1,638 / 1,675
|
 Safari |
— |
2.51%
41 / 1,631
|
1.74%
120 / 6,908
|
— |
— |
 Edge |
99.9%
4,957 / 4,962
|
100.0%
52 / 52
|
— |
98.95%
94 / 95
|
100.0%
10 / 10
|
 Firefox |
95.51%
2,148 / 2,249
|
100.0%
264 / 264
|
— |
0.0%
0 / 13
|
98.99%
294 / 297
|
VideoDecoder Support Matrix
Browser × Platform decoder support from 11,879 test sessions. Decoder data collection started Jan 2026.