Received shared screen fit the window in landscape but was center-cropped in
portrait (only the middle showed). The LiveKit TextureViewRenderer's own
SCALE_ASPECT_FIT didn't letterbox a wide screen in a tall tile — it filled and
cropped. Fix: compute the contain (letterbox) rect ourselves and size the
renderer to it, centred in the tile, then FILL (renderer == video aspect → no
crop), so the WHOLE screen shows in both orientations. Landscape unchanged
(tile aspect ~= video aspect → rect ~= full tile).
The live frame aspect comes from a small VideoSink attached to the screen
track alongside the renderer; frameAspect is a ConcurrentHashMap (written on
the render thread, read on the UI thread). Sinks + aspect are cleaned up on
tile removal / track change / hole-punch teardown. Camera tiles unchanged
(full-tile cover). Pinch-zoom still applies on top of the fitted renderer.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
SravanandClaude Opus 4.8
3b5dd81016