* feat(video): add H.265 codec support with auto-negotiation
Add H.265 (HEVC) encoding support to the RV1106 hardware encoder alongside
existing H.264. The codec is negotiated per-WebRTC session based on browser
capabilities.
- Add codec preference setting (Auto/H.265/H.264) to config, RPC, and UI
- Auto mode inspects the browser's SDP offer and prefers H.265 when supported,
with graceful fallback to H.264 for browsers without H.265 (e.g. Firefox)
- Move WebRTC video track creation from newSession() to ExchangeOffer() so
the codec can be resolved after seeing the browser's offer
- Set encoder codec type in onFirstSessionConnected() before VideoStart()
- Show active codec in the status bar when troubleshooting mode is enabled
- Remove quality factor >1.0 ceiling from ctrl.c to allow bitrate testing
- Fix Go wrapper to check return value from C quality factor setter
- Add e2e tests: video quality bitrate measurement, codec negotiation,
codec preference persistence, and a quality factor sweep benchmark
- Add visual noise helpers (remote host terminal) to e2e test infrastructure
* chore(e2e): remove video quality benchmark tests and helpers
Remove video-quality-sweep and video-quality spec files — these are
benchmarking tools, not regression tests. Also removes the visual noise
helpers and hardcoded developer SSH address from helpers.ts.
* feat(video): bump bitrate cap to 4000 kbps and tighten VBR ceiling
- Increase base_bitrate_high from 2000 to 4000 kbps, giving users
better image quality at every quality factor setting.
- Tighten VBR max_bitrate from 2x to 1.5x target, reducing encoder
overshoot while still allowing headroom for dynamic content.
- Add frames dropped, decode time, freeze count to WebRTC test hooks
for pipeline health monitoring.
- Move bitrate sweep benchmark to ui/benchmarks/ with its own
playwright config, separate from the e2e test suite.
Sweep results (visual noise, H.264, 1080p):
factor=0.1: 3082 kbps, 60fps, 0 dropped, 2.9ms decode
factor=0.5: 6357 kbps, 60fps, 0 dropped, 3.6ms decode
factor=1.0: 9445 kbps, 59fps, 0 dropped, 4.3ms decode
Adam Shiervani