AV1 Encoder for RTC
summary
libaom AV1 delivers low-latency RTC by using one-pass real-time CBR with no lookahead, a speed 5–10 quality/CPU knob and tile/row multithreading that gives ~1.8× speed from 1→2 threads and ~3× to 4 threads. It supports up to 8 temporal / 4 spatial layers with layered CBR rate control for per-layer targets, a palette mode ~1.5 dB boost for screen content, and a realtime_only build flag that shrinks the binary for Chrome/Duo; measured BD-rate vs VP9 shows ~10–14% gains at some settings with modest speed cost.
AI-written summary · about
chapters (17)
- 0:00Introduction
- 0:48Outline
- 2:14Coding Features
- 3:49Coding Tools
- 5:16Use Cases
- 6:08Release Date
- 8:01Chrome
- 10:24Basic Command Line
- 10:48Speed Settings
- 11:59Additional Speed Settings
- 13:30Keyframes
- 14:18Comparison to VP9
- 15:40Comparison to Speed7
- 16:12Layer Encoding
- 20:20Screen Encoding
- 21:44Quality Comparison
- 22:12Conclusion
