Simulcast & Adaptive Bitrate (ABR)
Publish one stream with up to 4 simulcast layers; PPCDN steps viewers between layers based on live network conditions, so weak networks stay smooth and recover to full quality automatically.
Seamless, server-side quality switching
The server estimates each viewer's bandwidth and moves them between layers on IDR boundaries to avoid visible artifacts. Viewers never pick a quality manually.
- Up to 4 simulcast layers (H264), up to 3 for HEVC
- Stepwise up/down to avoid oscillation
- No extra transcoding charge
HEVC / H264 multitrack
ppobs can publish H264 and HEVC as two independent streams. The player pulls HEVC-simulcast for roughly 30% less traffic when the browser supports it, and falls back to H264 automatically.
Built on standard WebRTC
Simulcast and ABR work with the standard WHEP player — no plugin, no proprietary player, no per-viewer re-encoding on the publisher side.
FAQ
How many simulcast layers are supported?
Up to 4 layers for H264 and up to 3 for HEVC.
Do viewers need to install anything?
No — playback uses the browser's native WebRTC (WHEP).
Is ABR billed separately?
Transcoding is not charged; you pay for downstream traffic and recording storage only.
Sign up and get $10 in trial credit
Create an app to get your appId, then start publishing with ppobs.