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Codec: avc1.64040c

3.26% Encoder Support
70,141 of 2,148,467 sessions supported encoding
99.81% Decoder Support
2,093,521 of 2,097,598 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,148,467 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 67 / 867,380 0.12% 124 / 100,989 — 0.02% 149 / 649,221 0.36% 157 / 43,797
SafariSafari
 — 1.48% 713 / 48,284 1.83% 3,996 / 218,117 — —
EdgeEdge
 0.01% 9 / 143,406 0.0% 0 / 1,521 — 0.0% 0 / 4,288 0.15% 1 / 679
FirefoxFirefox
 95.9% 51,463 / 53,664 99.89% 7,451 / 7,459 — 0.0% 0 / 107 97.99% 5,938 / 6,060

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,598 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,843 / 845,051 99.81% 97,126 / 97,312 — 99.65% 636,992 / 639,236 98.32% 41,952 / 42,671
SafariSafari
 — 99.83% 46,881 / 46,959 99.98% 212,488 / 212,530 — —
EdgeEdge
 100.0% 139,404 / 139,410 100.0% 1,482 / 1,482 — 100.0% 4,206 / 4,206 98.96% 666 / 673
FirefoxFirefox
 99.97% 51,867 / 51,883 99.97% 7,226 / 7,228 — 1.01% 1 / 99 98.57% 5,725 / 5,808