miniav 0.7.2

A cross-platform capture library for audio and video providing a standard buffer with GPU path

miniav CHANGELOG

0.7.2

• released 08/13/26 - MR

0.7.1

• Picks up miniav_ffi 0.7.1: destroying a Windows camera context no longer frees the Media Foundation source-reader callback while MF still holds it, and COM/MF initialisation is now process-lifetime rather than driven from individual FFI calls (the Dart VM runs an isolate's calls on threads borrowed from a pool, so per-call CoInitializeEx/CoUninitialize could not be balanced). No API change in this package.

0.7.0

GPU buffer handoff contract (Windows)

• FIXED (leak): the shared NT handle on the GPU path is now closed by miniav. Previously MiniAV.releaseBuffer only logged that the app was responsible for closing it and no caller ever did — one leaked kernel handle per captured GPU frame (60/s at 60 fps). miniav now owns the handle and closes it in the release path.

  • Contract: finish importing the handle (OpenSharedResource1, minigpu importVideoFrame, …) before calling releaseBuffer / releaseBufferSync, and do not CloseHandle it yourself. Release every buffer, including ones you skip — the handle is only closed on release.

• DOCS FIX: the README GPU example said the handle lives in planes[0]. It does not: it is in nativeHandles[0] (a plain Dart int). On the GPU path planes[0] is a non-null but empty Uint8List with stride 0, so planes[0] != null is not a CPU/GPU discriminator — use buffer.contentType.

• MiniAVNativeFence is documented as unimplemented. No backend populates it: d3d11FencePtr/metalSharedEventPtr/metalFenceValue are always 0, syncFd always -1. The Windows backends instead insert a D3D11_QUERY_EVENT, Flush(), and busy-poll for ≤16 ms — on timeout they hand the frame over anyway, so a consumer can receive a texture whose producer-side copy has not finished.

• MiniScreen.setIOSAppGroup(String) — register the App Group shared with the iOS Broadcast Upload Extension before configuring the system_screen_broadcast display.

0.6.0

0.5.11

0.5.10

0.5.9

• add MiniAV.releaseBufferSync(): synchronous, fire-and-forget variant of releaseBuffer() for hot paths (e.g. a per-frame capture callback) that must avoid a per-call Future/microtask allocation. Delegates to the platform's synchronous release where available.

0.5.8

• fix audio buffer allocations and leak issue

0.5.7

• Fix logger noisiness

0.5.6

• fix FormatException on non-UTF-8 bytes in MiniAV log callback: use Utf8Decoder(allowMalformed: true) instead of toDartString()
• add setLogCallback and installStderrLogger to route native MiniAV C library logs to a Dart callback

0.5.5

• fix wasapi loopback issue

0.5.4

• adds bindings observer lib to fix crash on hot restart

0.5.3

• Fix crash bug on hot refresh, fix crash on second use of recorder

0.5.2

• adds shared textures

0.5.1

• adds subscriptions and fixes lost device crashes

0.5.0

• adding input support

0.4.7

• fix loopback crackles

0.4.6

• fix build hook null
• update cmake toolchain

0.4.5

0.4.1

• fix issue with num frames not being reported for audio_inputs

1.0.0

• Initial version.