Three quick latency wins for phones, ahead of the presenter rebuild:
- setStreamDisplayMode: the window-level preferredDisplayModeId is pinned to
the stream's refresh (exact rate, else the smallest integer multiple, else
the highest available) for the session. The surface-level frame-rate hint
alone is advisory and some OEM refresh governors (Nothing OS's LTPO logic
among them) ignore it for third-party apps — leaving a 120 Hz session
presenting on a 60/90 Hz panel. nativeVideoSize gained a trailing
refreshHz element for this (old readers index only 0/1). TV keeps the
native HDMI mode switch instead.
- The surface hint itself now passes compatibility = FIXED_SOURCE on every
form factor: the stream is fixed-rate video the client cannot re-pace;
DEFAULT invited governors to not switch.
- requestUnbufferedDispatch(SOURCE_CLASS_POINTER) on the hosting view while
streaming: touch/pointer events were vsync-batched — up to a frame of
input latency the stream shouldn't pay.
- The HUD polls the panel's live refresh each second and flags '⚠ panel N Hz'
when it sits below the stream rate, so an unpinned panel is visible instead
of reading as inexplicable judder. Stale nativeStartVideo kdoc (low-latency
'off, the default') corrected — it defaults ON under low_latency_mode_v2.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
enricobuehlerandClaude Fable 5
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