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Codec: avc1.4d1434

84.74% Encoder Support
53,073 of 62,631 sessions supported encoding
99.92% Decoder Support
11,917 of 11,926 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 5.2
Maximum Resolution 8K (8192×4352)
Maximum Bitrate 240 Mbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 62,631 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.23% 27,272 / 27,485 99.88% 4,339 / 4,344 97.49% 11,797 / 12,101 97.78% 1,587 / 1,623
SafariSafari
1.93% 32 / 1,658 1.71% 119 / 6,950
EdgeEdge
99.76% 5,010 / 5,022 100.0% 42 / 42 100.0% 95 / 95 100.0% 13 / 13
FirefoxFirefox
95.22% 2,131 / 2,238 100.0% 291 / 291 0.0% 0 / 12 99.04% 310 / 313

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,926 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
99.98% 5,224 / 5,225 99.85% 675 / 676 100.0% 2,241 / 2,241 98.3% 404 / 411
SafariSafari
100.0% 278 / 278 100.0% 1,418 / 1,418
EdgeEdge
100.0% 1,062 / 1,062 100.0% 20 / 20
FirefoxFirefox
100.0% 407 / 407 100.0% 48 / 48 100.0% 57 / 57