demo · v136
Profile Picker
HEVC isn't one codec — it's a tier (Main / Main 10), profile-space (0/1), and a tier-and-level pair. The picker iterates each combination, asks RTCRtpSender.getCapabilities() and VideoEncoder.isConfigSupported() whether the local hardware can encode it, and shows the SDP fmtp string you'd negotiate.
Note: HEVC support depends on the OS, GPU, and Chrome build (some H.265 lines require
chrome://flags/#enable-webrtc-hw-decoding). Cells marked "no" mean the local stack rejected the config — remote peers may still differ.