Files
LlamaCasty/ytLive.csproj
T
gramps 9f3c154d84 TASK 51 slice 1: background-effects engine — bundled MediaPipe Selfie Segmenter (ONNX) + Remove (Unit: bg-effects engine)
- Model: Google's official MediaPipe Selfie Segmenter (landscape, Apache-2.0 per model card),
  converted to ONNX by tools/selfie-seg/convert_tflite_to_onnx.py (custom op
  Convolution2DTransposeBias -> ConvTranspose) and verified against MediaPipe's own runtime
  (verify_against_mediapipe.py: max |diff| 5e-5, 100% binary agreement). Embedded resource, 430 KB.
- Services/BackgroundEffects: IPersonSegmenter seam, OnnxPersonSegmenter (onnxruntime 1.31.0 CPU,
  never throws), BackgroundEffectProcessor (None passthrough, Remove = alpha mask). Not wired yet.
- Tests: Remove integration test (fake segmenter) + bundled-model contract test vs MediaPipe
  reference mask. Full suite 407/408 — the one failure is the documented interactive-desktop flake
  RealMouseDrag_OnTheLayerList_PersistsTheReorder (passed in the run before; code path untouched).
- Docs: ai.md reversal + section + licensing guard, THIRD-PARTY-NOTICES 11-12, TASK 51, indexes,
  MyMistakes recipe, HANDOFF.

References: obs-backgroundremoval (approach only — ONNX Runtime on CPU, 2 threads; GPL-3.0, no code
used) https://github.com/royshil/obs-backgroundremoval ; MediaPipe image segmenter
https://ai.google.dev/edge/mediapipe/solutions/vision/image_segmenter
2026-10-09 09:24:13 -07:00

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>WinExe</OutputType>
<TargetFramework>net8.0-windows10.0.19041.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<UseWPF>true</UseWPF>
<EnableWindowsTargeting>true</EnableWindowsTargeting>
<ApplicationIcon>Assets\llamacasty-icon.ico</ApplicationIcon>
<AssemblyName>ytLive</AssemblyName>
<RootNamespace>ytLive</RootNamespace>
</PropertyGroup>
<ItemGroup>
<Compile Remove="ytLive.Tests\**" />
<EmbeddedResource Remove="ytLive.Tests\**" />
<None Remove="ytLive.Tests\**" />
<Page Remove="ytLive.Tests\**" />
</ItemGroup>
<!-- Per-build identity stamp (2026-09-04): takes 1–6 could not be attributed to an
exact binary — render perf "fixes" were being judged against builds we could not
prove were running. A fresh GUID per build makes an incremental compile impossible
(that is the point: every exe you launch was compiled NOW), the wordmark shows the
id, and startup.log records id + build time. -->
<Target Name="GenerateBuildStamp" BeforeTargets="CoreCompile">
<PropertyGroup>
<BuildStampFile>$(IntermediateOutputPath)BuildStamp.g.cs</BuildStampFile>
<BuildStampId>$([System.Guid]::NewGuid().ToString('N').Substring(0,8))</BuildStampId>
<BuildStampTime>$([System.DateTime]::Now.ToString('yyyy-MM-dd HH:mm:ss'))</BuildStampTime>
<!-- RELEASE COUNTER (creator ruling 2026-09-04): the UI shows a sequential number that
ticks +1 per COMMIT, starting at 13 — a per-BUILD GUID changed on every launch and read
as noise (rightly). Derived from git rev-list count (stable per commit, no bookkeeping).
Baseline 241 = count at introduction, first display 13. Missing git or unparsed output
falls back to the start (build never breaks). GUID + compile time stay in startup.log,
where build-identity forensics actually live. -->
<BuildNumberBaseline>241</BuildNumberBaseline>
<BuildNumberStart>13</BuildNumberStart>
</PropertyGroup>
<Exec Command="&quot;C:\Program Files\Git\cmd\git.exe&quot; rev-list --count HEAD"
WorkingDirectory="$(ProjectDir)" ConsoleToMSBuild="true" IgnoreExitCode="true">
<Output TaskParameter="ConsoleOutput" PropertyName="CommitCountRaw" />
</Exec>
<PropertyGroup>
<CommitCount>$(CommitCountRaw.Trim())</CommitCount>
<BuildNumber>$([MSBuild]::Add($(BuildNumberStart), $([MSBuild]::Subtract($(CommitCount), $(BuildNumberBaseline)))))</BuildNumber>
<BuildNumber Condition="! $([System.Text.RegularExpressions.Regex]::IsMatch('$(BuildNumber)', '^[0-9]+$'))">$(BuildNumberStart)</BuildNumber>
</PropertyGroup>
<ItemGroup>
<BuildStampLines Include="// &lt;auto-generated&gt; Per-build identity (ytLive.csproj GenerateBuildStamp)."/>
<BuildStampLines Include="// Release/Label = the sequential UI stamp (+1 per commit, started at 13)."/>
<BuildStampLines Include="// Id/BuiltLocal = per-build forensic identity, logged to startup.log only. Never edit by hand."/>
<BuildStampLines Include="namespace ytLive.Helpers%3B"/>
<BuildStampLines Include="public static class BuildStamp { public const int Release = $(BuildNumber)%3B public const string Label = &quot;#$(BuildNumber)&quot;%3B public const string Id = &quot;$(BuildStampId)&quot;%3B public const string BuiltLocal = &quot;$(BuildStampTime)&quot;%3B }"/>
</ItemGroup>
<WriteLinesToFile File="$(BuildStampFile)" Lines="@(BuildStampLines)" Overwrite="true" WriteOnlyWhenDifferent="false" />
<ItemGroup>
<Compile Include="$(BuildStampFile)" />
</ItemGroup>
</Target>
<ItemGroup>
<Resource Include="Assets\llamacasty-icon.png" />
<Resource Include="Assets\llamacasty-logo.jpg" />
<Resource Include="Assets\starting-background.jpg" />
<Resource Include="Assets\brb-background.jpg" />
<Resource Include="Assets\live-background.jpg" />
<Resource Include="Assets\ending-background.jpg" />
<Resource Include="Assets\chat-background.jpg" />
<Resource Include="Assets\alert-default.mp4" />
</ItemGroup>
<ItemGroup>
<None Include="THIRD-PARTY-NOTICES.txt" CopyToOutputDirectory="PreserveNewest" />
</ItemGroup>
<!-- Webcam background effects (TASK 51): Google's MediaPipe Selfie Segmenter (landscape,
Apache-2.0), converted to ONNX by tools/selfie-seg/ and embedded in the assembly —
~430 KB, so it lives in git, ships inside the exe, and is never downloaded at runtime
(Store policy 10.2.2, same posture as the bundled ffmpeg). -->
<ItemGroup>
<EmbeddedResource Include="Assets\Models\selfie_segmenter_landscape.onnx" LogicalName="ytLive.Assets.Models.selfie_segmenter_landscape.onnx" />
</ItemGroup>
<!-- Bundled FFmpeg (TASK 48 item 1, Store policy 10.2.2 dynamic code inclusion).
The app used to DOWNLOAD an unsigned ffmpeg from GitHub at first run and execute
it; that 404'd on the creator's first real recording (2026-09-01) and is the one
hard certification gate. ffmpeg.exe + ffprobe.exe + the libav*.dll family now ship
in the output under a single ffmpeg/ folder — the shared build resolves its DLLs
from the exe's own directory, so they must stay siblings.
The binaries are NOT in git (135 MB). scripts/fetch-ffmpeg.sh populates ./ffmpeg
from a pinned URL, verifying SHA-256 first. CopyToPublishDirectory=Always is the
one that matters for the MSIX package. -->
<ItemGroup>
<None Include="ffmpeg\**" CopyToOutputDirectory="PreserveNewest" CopyToPublishDirectory="Always" />
</ItemGroup>
<Target Name="GuardBundledFfmpeg" BeforeTargets="CoreCompile">
<Error Condition="!Exists('$(MSBuildProjectDirectory)\ffmpeg\ffmpeg.exe')"
Text="Bundled FFmpeg is missing from ffmpeg\. Run scripts/fetch-ffmpeg.sh once before building (it pins the URL and verifies SHA-256). FFmpeg must be bundled, never downloaded at runtime — that is Windows Store policy 10.2.2, and the previous download path 404'd on 2026-09-01." />
</Target>
<ItemGroup>
<AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
<_Parameter1>ytLive.Tests</_Parameter1>
</AssemblyAttribute>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Data.Sqlite" Version="8.0.10" />
<PackageReference Include="Microsoft.ML.OnnxRuntime" Version="1.31.0" />
<PackageReference Include="NAudio.Wasapi" Version="2.2.1" />
<PackageReference Include="NAudio.WinMM" Version="2.2.1" />
<PackageReference Include="Notification.Wpf" Version="11.0.0" />
<PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.1.12" />
<PackageReference Include="System.Security.Cryptography.ProtectedData" Version="8.0.0" />
<PackageReference Include="Microsoft.Web.WebView2" Version="1.0.2903.40" />
<PackageReference Include="Velopack" Version="1.2.0" />
</ItemGroup>
</Project>