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Codec: avc1.4d0c0c

3.96% Encoder Support
12,702 of 320,929 sessions supported encoding
99.94% Decoder Support
269,418 of 269,567 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 320,929 test sessions. Browser detection based on user agent strings.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 0.01% 15 / 144,075 0.15% 30 / 19,859 — 0.03% 16 / 63,552 0.44% 35 / 7,922
SafariSafari
 — 2.11% 184 / 8,724 1.4% 436 / 31,247 — —
EdgeEdge
 0.0% 1 / 30,960 0.0% 0 / 382 — 0.0% 0 / 996 0.0% 0 / 52
FirefoxFirefox
 96.02% 9,366 / 9,754 100.0% 1,323 / 1,323 — 0.0% 0 / 39 98.46% 1,280 / 1,300

VideoDecoder Support Matrix

Browser × Platform decoder support from 269,567 test sessions. Decoder data collection started Jan 2026.

Browser Windows Windows macOS macOS iOS iOS Android Android Linux Linux
ChromeChrome/Chromium
 99.98% 121,450 / 121,473 99.92% 16,080 / 16,093 — 99.99% 53,608 / 53,616 99.27% 6,657 / 6,706
SafariSafari
 — 99.96% 7,298 / 7,301 99.99% 25,599 / 25,602 — —
EdgeEdge
 99.99% 26,928 / 26,930 100.0% 336 / 336 — 100.0% 925 / 925 95.45% 42 / 44
FirefoxFirefox
 99.99% 8,012 / 8,013 100.0% 1,083 / 1,083 — 0.0% 0 / 29 99.52% 1,045 / 1,050