← Back to Codec Support Table

Codec: avc1.64040a

3.26% Encoder Support
70,043 of 2,149,518 sessions supported encoding
99.8% Decoder Support
2,094,009 of 2,098,164 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile High
Level 1
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 64 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,149,518 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 70 / 867,086 0.11% 115 / 100,862 — 0.02% 118 / 649,856 0.33% 146 / 44,084
SafariSafari
 — 1.49% 713 / 47,856 1.85% 4,044 / 218,631 — —
EdgeEdge
 0.0% 7 / 144,127 0.0% 0 / 1,477 — 0.0% 0 / 4,296 0.0% 0 / 669
FirefoxFirefox
 95.95% 51,479 / 53,652 99.91% 7,378 / 7,385 — 0.0% 0 / 109 97.98% 5,917 / 6,039

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,098,164 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 844,322 / 844,517 99.82% 96,953 / 97,130 — 99.65% 637,708 / 639,968 98.21% 42,079 / 42,845
SafariSafari
 — 99.85% 46,446 / 46,518 99.98% 212,953 / 213,006 — —
EdgeEdge
 100.0% 140,052 / 140,058 100.0% 1,431 / 1,431 — 100.0% 4,217 / 4,217 98.79% 653 / 661
FirefoxFirefox
 99.98% 51,799 / 51,811 99.96% 7,160 / 7,163 — 0.0% 0 / 98 98.5% 5,696 / 5,783