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Codec: avc1.4d1016

98.97% Encoder Support
317,797 of 321,120 sessions supported encoding
99.94% Decoder Support
269,680 of 269,844 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 2.2
Maximum Resolution SD/DVD (720×480)
Maximum Bitrate 4 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 321,120 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 143,179 / 144,232 99.88% 19,615 / 19,639 — 97.61% 62,447 / 63,975 97.91% 7,578 / 7,740
SafariSafari
 — 99.94% 8,537 / 8,542 99.99% 31,353 / 31,356 — —
EdgeEdge
 99.77% 30,937 / 31,009 100.0% 380 / 380 — 99.17% 960 / 968 98.33% 59 / 60
FirefoxFirefox
 96.02% 9,383 / 9,772 100.0% 1,299 / 1,299 — 0.0% 0 / 33 99.08% 1,293 / 1,305

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,844 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,632 / 121,663 99.93% 15,794 / 15,805 — 99.99% 54,006 / 54,011 99.05% 6,498 / 6,560
SafariSafari
 — 99.93% 7,205 / 7,210 99.99% 25,686 / 25,689 — —
EdgeEdge
 100.0% 27,087 / 27,088 100.0% 338 / 338 — 100.0% 887 / 887 100.0% 54 / 54
FirefoxFirefox
 100.0% 7,996 / 7,996 100.0% 1,072 / 1,072 — 0.0% 0 / 22 99.16% 1,057 / 1,066