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Codec: avc1.4d1034

98.72% Encoder Support
2,120,890 of 2,148,326 sessions supported encoding
99.81% Decoder Support
2,093,236 of 2,097,296 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 2,148,326 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.39% 861,045 / 866,306 99.76% 101,167 / 101,415 — 97.35% 633,546 / 650,798 96.66% 42,197 / 43,656
SafariSafari
 — 99.76% 48,043 / 48,158 99.98% 217,979 / 218,020 — —
EdgeEdge
 99.86% 143,155 / 143,352 100.0% 1,481 / 1,481 — 99.22% 4,210 / 4,243 98.68% 672 / 681
FirefoxFirefox
 96.04% 51,204 / 53,313 99.97% 7,430 / 7,432 — 0.0% 0 / 105 98.77% 5,877 / 5,950

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,097,296 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 843,766 / 843,961 99.79% 97,516 / 97,717 — 99.66% 638,604 / 640,792 98.3% 41,705 / 42,425
SafariSafari
 — 99.84% 46,658 / 46,732 99.98% 212,366 / 212,407 — —
EdgeEdge
 99.99% 139,386 / 139,395 100.0% 1,447 / 1,447 — 100.0% 4,170 / 4,170 98.82% 669 / 677
FirefoxFirefox
 99.97% 51,529 / 51,547 99.97% 7,182 / 7,184 — 0.0% 0 / 97 98.45% 5,636 / 5,725