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Codec: avc1.4d1016

98.72% Encoder Support
2,120,980 of 2,148,566 sessions supported encoding
99.8% Decoder Support
2,093,153 of 2,097,290 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 2,148,566 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 861,550 / 866,835 99.73% 100,175 / 100,443 — 97.36% 632,859 / 650,023 96.73% 42,269 / 43,700
SafariSafari
 — 99.76% 47,976 / 48,090 99.98% 218,380 / 218,431 — —
EdgeEdge
 99.84% 143,662 / 143,895 100.0% 1,441 / 1,441 — 99.43% 4,185 / 4,209 98.91% 725 / 733
FirefoxFirefox
 95.83% 51,310 / 53,542 99.96% 7,475 / 7,478 — 0.0% 0 / 108 98.65% 6,004 / 6,086

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,290 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,094 / 844,266 99.79% 96,405 / 96,609 — 99.65% 637,808 / 640,059 98.33% 41,808 / 42,520
SafariSafari
 — 99.83% 46,680 / 46,758 99.98% 212,713 / 212,764 — —
EdgeEdge
 99.99% 139,963 / 139,974 100.0% 1,399 / 1,399 — 100.0% 4,128 / 4,128 99.59% 724 / 727
FirefoxFirefox
 99.97% 51,751 / 51,766 99.94% 7,247 / 7,251 — 0.0% 0 / 97 98.34% 5,750 / 5,847