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Codec: avc1.4d1028

98.93% Encoder Support
317,337 of 320,765 sessions supported encoding
99.93% Decoder Support
269,585 of 269,779 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 4
Maximum Resolution 1080p (1920×1080)
Maximum Bitrate 20 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,765 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.27% 143,088 / 144,145 99.83% 19,571 / 19,605 — 97.45% 62,066 / 63,688 98.01% 7,621 / 7,776
SafariSafari
 — 99.93% 8,636 / 8,642 99.98% 31,395 / 31,400 — —
EdgeEdge
 99.8% 30,920 / 30,982 100.0% 381 / 381 — 99.05% 934 / 943 100.0% 67 / 67
FirefoxFirefox
 95.95% 9,311 / 9,704 100.0% 1,274 / 1,274 — 0.0% 0 / 42 98.92% 1,284 / 1,298

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,779 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 121,723 / 121,769 99.86% 15,894 / 15,917 — 99.99% 53,780 / 53,787 99.1% 6,519 / 6,578
SafariSafari
 — 99.93% 7,243 / 7,248 99.98% 25,779 / 25,784 — —
EdgeEdge
 100.0% 27,002 / 27,002 100.0% 332 / 332 — 100.0% 863 / 863 100.0% 61 / 61
FirefoxFirefox
 99.97% 7,913 / 7,915 100.0% 1,045 / 1,045 — 0.0% 0 / 26 99.34% 1,054 / 1,061