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Codec: avc1.4d1034

98.98% Encoder Support
317,379 of 320,655 sessions supported encoding
99.93% Decoder Support
269,435 of 269,627 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 320,655 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.28% 143,033 / 144,069 99.89% 19,783 / 19,804 — 97.58% 62,229 / 63,773 97.96% 7,621 / 7,780
SafariSafari
 — 99.89% 8,541 / 8,550 99.99% 31,168 / 31,171 — —
EdgeEdge
 99.86% 31,071 / 31,115 100.0% 371 / 371 — 98.88% 968 / 979 98.39% 61 / 62
FirefoxFirefox
 96.13% 9,242 / 9,614 100.0% 1,336 / 1,336 — 0.0% 0 / 31 98.89% 1,248 / 1,262

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,627 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 121,684 / 121,724 99.91% 16,091 / 16,106 — 99.98% 53,755 / 53,767 99.01% 6,484 / 6,549
SafariSafari
 — 99.89% 7,117 / 7,125 99.99% 25,555 / 25,558 — —
EdgeEdge
 100.0% 27,158 / 27,158 100.0% 337 / 337 — 100.0% 906 / 906 98.28% 57 / 58
FirefoxFirefox
 100.0% 7,848 / 7,848 100.0% 1,088 / 1,088 — 0.0% 0 / 23 99.42% 1,032 / 1,038