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gramps 77d7208bfa feat(media): add a video file layer that decodes into the scene

TASK 21's picker slice: the decoder, manager, pacing and loop mechanism were
already shipped but nothing ever acquired a session, so a media Source rendered
nothing. Adds "Video File" to the (+) menu (video-filtered OpenFileDialog),
one decode session per distinct path with a HasSession guard, release when the
last scene reference goes, and a post-load reconcile. Loop is a manager-level
per-path answer ("any live reference loops") applied before StartAsync and
updated live via SetLooping. Properties panel shows the file with Change… and
Loop. Volume stays unwired: media audio rides the desktop loopback, TRAX-style.

Reference: OBS's media source (file → decode → composite into the scene) is the
established answer for this feature; the lifecycle shape mirrors this repo's
WebView2/ScreenCapture registration rather than inventing a new one.

Test: ytLive.Tests/MediaSourceAcquisitionTests.cs — add starts one decoder and
frames reach the layer, loop flip reaches the decoder, remove stops it.

Docs: task-21 closed, TASKS row + Day-4 row + stale 3·17 row corrected,
frame-pipeline acquisition note, HANDOFF rewritten. verify.sh green.

2026-11-05 07:17:43 -08:00

1.3 KiB

Raw Blame History

HANDOFF — 2026-11-05 (TASK 21 — video file layer)

State

main; TASK 21 is complete: a video file added from the (+) menu decodes, composites into preview and stream, loops on toggle, and stops with its last scene reference. 3·17 (text layers) completed 2026-11-04.
New test MediaSourceAcquisitionTests (add → one decoder starts + frames reach the layer + loop flip reaches the decoder + remove → stops). App build is 0 warnings.
Volume is deliberately unwired: media audio rides the desktop loopback, so a slider would do nothing.

Next action

Next queued unit: TASK 49 (chat profanity filter). Day 3's TASK 32/33 resilience slices are still outstanding — 32·4 (fragmented MP4) is the smallest.
Do not push absent a checkpoint request.

Landmines

LayerReorderPersistenceTests.RealMouseDrag_OnTheLayerList_PersistsTheReorder injects physical mouse input. Do not run it while the desktop is in use.
Integration tests constructing MainWindow must set a temporary LayoutPathOverride and clear it in finally.
Media sessions are keyed per path, not per layer: acquire through EnsureMediaSession, release through ReleaseMediaIfUnused, never AcquireAsync twice for one path.
Bundled FFmpeg stays outside the single-file exe (ExcludeFromSingleFile="true").

1.3 KiB Raw Blame History

HANDOFF — 2026-11-05 (TASK 21 — video file layer)

State

Next action

Landmines

1.3 KiB

Raw Blame History