enricobuehler
13d1aa5738
The long-deferred Android display stage (design/stats-unification.md; plan 4.1 of design/client-parity-and-network-resilience.md): AMediaCodec_setOnFrameRenderedCallback (API 26, under the minSdk-28 floor ⇒ hard-linked via ndk-sys) reports SurfaceFlinger's per-frame render timestamp, giving the HUD the spec's `display` = decoded→displayed term and the directly-measured capture→displayed end-to-end headline on both decode loops. Falls back per spec to the v1 capture→decoded endpoint on any window without render callbacks (the platform may drop them under load), and to it permanently if registration is refused. - The render timestamp arrives on CLOCK_MONOTONIC; it's re-based onto CLOCK_REALTIME against monotonic-now at callback time, which also cancels the (batchable) callback delivery lag. - The `ndk` crate exposes neither the callback nor the codec pointer needed to bind it raw, so the workspace pins `ndk` 0.9.0 to a vendored copy (clients/android/native/ vendor/ndk) whose ONLY change makes MediaCodec::as_ptr public — the "as_ptr patch". Workspace-excluded so host builds never compile it; drop when upstream exposes either. - nativeVideoStats grows to 26 doubles (22–25: dispValid, displayP50, e2eDispP50/P95; 0–21 unchanged for older readers); StatsOverlay moves headline endpoint + equation together so the equation always tiles the headline interval. Verified: host cargo check/test/clippy, aarch64-linux-android check/clippy, Kotlin app+kit+tests compile, roborazzi HUD render shows the full 4-term equation. Device verification rides plan 4.2's phone A/B. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
22 lines
2.1 KiB
Markdown
22 lines
2.1 KiB
Markdown
[](https://github.com/rust-mobile/ndk/actions/workflows/rust.yml)  
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Rust bindings to the [Android NDK](https://developer.android.com/ndk)
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Name | Description | Badges
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--- | --- | ---
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[`ndk-sys`](./ndk-sys) | Raw FFI bindings to the NDK | [](https://crates.io/crates/ndk-sys) [](https://docs.rs/ndk-sys) [](https://blog.rust-lang.org/2022/04/07/Rust-1.60.0.html)
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[`ndk`](./ndk) | Safe abstraction of the bindings | [](https://crates.io/crates/ndk) [](https://docs.rs/ndk) [](https://blog.rust-lang.org/2022/09/22/Rust-1.64.0.html)
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See these [`ndk-examples`](https://github.com/rust-mobile/cargo-apk/tree/main/examples/examples) and these [`rust-android-examples`](https://github.com/rust-mobile/rust-android-examples) for examples using the NDK.
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> [!IMPORTANT]
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> This repository was recently [modularized](https://github.com/rust-mobile/ndk/issues/372) and the following crates were split into separate repositories:
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>
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> Crate | New Location | Notes
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> ------|--------------|------
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> ndk-context | https://github.com/rust-mobile/ndk-context |
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> ndk-glue | https://github.com/rust-mobile/ndk-glue | ⛔ _deprecated_ - see [android-activity](https://github.com/rust-mobile/android-activity)
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> ndk-macro | https://github.com/rust-mobile/ndk-glue | ⛔ _deprecated_ - see [android-activity](https://github.com/rust-mobile/android-activity)
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> ndk-build | https://github.com/rust-mobile/cargo-apk | ⛔ _deprecated_ - see [xbuild](https://github.com/rust-mobile/xbuild)
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> cargo-apk | https://github.com/rust-mobile/cargo-apk | ⛔ _deprecated_ - see [xbuild](https://github.com/rust-mobile/xbuild)
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