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Codec: avc1.4d000c

15.5% Encoder Support
332,639 of 2,146,131 sessions supported encoding
99.8% Decoder Support
2,090,713 of 2,094,845 sessions supported decoding

Codec Specifications

Codec Family AVC (H.264)
Profile Main
Level 1.2
Maximum Resolution SD (384×384 or smaller)
Maximum Bitrate 384 Kbps

VideoEncoder Support Matrix

Browser × Platform encoder support from 2,146,131 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 66 / 867,293 0.11% 115 / 100,309 — 0.03% 192 / 649,555 0.34% 149 / 43,672
SafariSafari
 — 99.73% 47,486 / 47,615 99.97% 217,426 / 217,493 — —
EdgeEdge
 0.0% 5 / 143,314 0.0% 0 / 1,435 — 0.0% 0 / 4,235 0.14% 1 / 700
FirefoxFirefox
 95.84% 51,402 / 53,635 99.84% 7,363 / 7,375 — 0.0% 0 / 127 98.08% 5,871 / 5,986

VideoDecoder Support Matrix

Browser × Platform decoder support from 2,094,845 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.97% 844,369 / 844,587 99.82% 96,495 / 96,671 — 99.65% 637,183 / 639,444 98.36% 41,731 / 42,426
SafariSafari
 — 99.83% 46,116 / 46,193 99.98% 211,917 / 211,962 — —
EdgeEdge
 100.0% 139,377 / 139,383 100.0% 1,392 / 1,392 — 100.0% 4,157 / 4,157 98.99% 687 / 694
FirefoxFirefox
 99.97% 51,865 / 51,882 99.93% 7,157 / 7,162 — 0.0% 0 / 116 98.32% 5,666 / 5,763