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Codec: avc1.4d000b

15.53% Encoder Support
333,719 of 2,148,598 sessions supported encoding
99.8% Decoder Support
2,093,222 of 2,097,374 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 192 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,598 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 69 / 866,887 0.13% 126 / 100,675 — 0.03% 189 / 650,714 0.36% 160 / 43,960
SafariSafari
 — 99.74% 47,812 / 47,939 99.97% 217,803 / 217,864 — —
EdgeEdge
 0.0% 5 / 143,306 0.07% 1 / 1,451 — 0.0% 0 / 4,332 0.0% 0 / 667
FirefoxFirefox
 95.93% 51,625 / 53,817 99.96% 7,400 / 7,403 — 0.0% 0 / 94 97.79% 5,931 / 6,065

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,374 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,228 / 844,433 99.8% 96,784 / 96,976 — 99.64% 638,347 / 640,654 98.35% 42,066 / 42,771
SafariSafari
 — 99.82% 46,535 / 46,620 99.98% 212,146 / 212,189 — —
EdgeEdge
 99.99% 139,247 / 139,255 100.0% 1,414 / 1,414 — 100.0% 4,256 / 4,256 99.4% 659 / 663
FirefoxFirefox
 99.96% 52,021 / 52,041 99.99% 7,167 / 7,168 — 1.12% 1 / 89 98.54% 5,748 / 5,833