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Codec: avc1.4d0c0c

4.44% Encoder Support
2,809 of 63,200 sessions supported encoding
99.92% Decoder Support
11,851 of 11,860 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 63,200 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 4 / 27,790 0.07% 3 / 4,452 — 0.03% 4 / 12,208 0.19% 3 / 1,609
SafariSafari
 — 2.44% 41 / 1,677 1.46% 103 / 7,034 — —
EdgeEdge
 0.0% 0 / 5,048 0.0% 0 / 52 — 0.0% 0 / 109 0.0% 0 / 12
FirefoxFirefox
 95.17% 2,049 / 2,153 100.0% 289 / 289 — 0.0% 0 / 12 98.69% 302 / 306

VideoDecoder Support Matrix

Browser × Platform decoder support from 11,860 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.96% 5,187 / 5,189 100.0% 686 / 686 — 100.0% 2,272 / 2,272 98.98% 389 / 393
SafariSafari
 — 100.0% 259 / 259 100.0% 1,405 / 1,405 — —
EdgeEdge
 100.0% 1,018 / 1,018 — — 100.0% 38 / 38 —
FirefoxFirefox
 100.0% 412 / 412 100.0% 49 / 49 — — 100.0% 56 / 56