← Back to Codec Support Table

Codec: avc1.640034

98.68% Encoder Support
316,631 of 320,875 sessions supported encoding
99.94% Decoder Support
269,802 of 269,963 sessions supported decoding

Codec Specifications

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

VideoEncoder Support Matrix

Browser × Platform encoder support from 320,875 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.26% 142,987 / 144,054 99.87% 19,815 / 19,841 — 96.26% 61,494 / 63,882 97.43% 7,505 / 7,703
SafariSafari
 — 99.92% 8,553 / 8,560 99.98% 31,409 / 31,416 — —
EdgeEdge
 99.77% 30,888 / 30,958 100.0% 371 / 371 — 97.68% 927 / 949 100.0% 51 / 51
FirefoxFirefox
 96.11% 9,346 / 9,724 100.0% 1,290 / 1,290 — 0.0% 0 / 40 98.89% 1,249 / 1,263

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,963 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,760 / 121,783 99.91% 16,087 / 16,102 — 99.98% 53,927 / 53,936 99.26% 6,450 / 6,498
SafariSafari
 — 99.9% 7,230 / 7,237 99.98% 25,829 / 25,835 — —
EdgeEdge
 100.0% 26,890 / 26,891 100.0% 322 / 322 — 100.0% 876 / 876 100.0% 46 / 46
FirefoxFirefox
 99.99% 7,921 / 7,922 100.0% 1,065 / 1,065 — 0.0% 0 / 29 99.23% 1,035 / 1,043