LlamaCasty

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Author	SHA1	Message	Date
gramps	b22d08eca6	feat: signed A/V sync offset (−500..+500), negative advances by eating live stream head (OBS eat-head semantics) Positive offsets still delay the whole mix via the delay line (lip-sync fix); negative offsets now ARM once at StartLive and drop \|N\| ms off the pipe's write head so audio events land earlier when audio runs BEHIND video. Slider relabeled AUDIO SYNC, Min −500, locked while live/recording (IsEditMode). LayoutStore and VM clamp to −500..500. OBS reference for eat-the-head negative sync: https://obsproject.com/kb/obs-studio/buffering-time (negative sync values pull audio earlier by discarding buffered player audio). Test: StartLive_NegativeOffset_AdvancesAudio_ByDroppingTheStreamHead (6x0.9 head must be eaten before 0.2 bed reaches the wire).	2026-09-14 12:30:44 -07:00
gramps	e8ff4df05f	TASK 22: global audio sync offset (positive delay at the mixer out) Adds AudioSyncOffsetMs (0..500ms, default 0) that delays the whole interleaved-stereo mix so audio lands on the video when it runs ahead — OBS's documented lip-sync fix. Positive-only: advancing audio needs a video-side delay and is out of the audio layer's scope. - Services/Audio/AudioSyncDelay.cs: pure delay line, flushed on Configure - AudioMixer: Func<int> syncOffsetMs seam + delay applied post-limiter - LayoutStore.Settings + MainViewModel.Audio/VM: load/save + binding - PreviewPane mic bar: SYNC slider + status dot (IntToSyncBrushConverter) - AudioSyncDelayTests: identity, negative/beyond-500 clamps, 10ms→960 samples Reference (external scan): https://obs-versions.com/blog/how-to-fix-audio-delay-on-obs (audio ahead => positive delay). Verified: build 0 warnings; 3/3 delay tests pass.	2026-08-31 18:30:03 -07:00
gramps	dcb3637cca	refactor: split LayoutStore by concern — 500-limit Phase 3, Commit E LayoutStore.cs 1402 -> 47-line shell + 5 partials, grouped by functionality (line count is a consequence, not the goal): - LayoutStore.Migrations.cs: all DB schema migration (EnsureSchema, GetUserVersion, MigrateSourceTable/WebcamConfigTable/ToV3/SceneTable/SceneSocialBarColumn/ SocialsTable/SocialEntryTable) - LayoutStore.Load.cs: Load() scene/source read-back - LayoutStore.Save.cs: Save() full scene tree write - LayoutStore.Settings.cs: key/value settings + mic/record-folder/reusable-stream + license/transition/broadcast/hotkey/window-state GetSetting/UpsertSetting - LayoutStore.Assets.cs: GetAssetBytes/UpsertAsset blob IO - LayoutStore.cs: shell — Instance, fields, ctor, Dispose Converted to public partial class LayoutStore : IDisposable. Pruned per-file dead usings. Phase 3 DOWN: no production .cs exceeds 500 lines. Zero behavior change; build 0 warnings; 246 pass, only the 2 known failures. Docs: ViewModels/index.md Phase 3 tracker updated in same commit.	2026-08-31 09:10:17 -07:00

Author

SHA1

Message

Date

gramps

b22d08eca6

feat: signed A/V sync offset (−500..+500), negative advances by eating live stream head (OBS eat-head semantics)

Positive offsets still delay the whole mix via the delay line (lip-sync fix);
negative offsets now ARM once at StartLive and drop |N| ms off the pipe's write
head so audio events land earlier when audio runs BEHIND video. Slider relabeled
AUDIO SYNC, Min −500, locked while live/recording (IsEditMode). LayoutStore and
VM clamp to −500..500.

OBS reference for eat-the-head negative sync: https://obsproject.com/kb/obs-studio/buffering-time (negative sync values pull audio earlier by discarding buffered player audio).

Test: StartLive_NegativeOffset_AdvancesAudio_ByDroppingTheStreamHead (6x0.9 head
must be eaten before 0.2 bed reaches the wire).

2026-09-14 12:30:44 -07:00

gramps

e8ff4df05f

TASK 22: global audio sync offset (positive delay at the mixer out)

Adds AudioSyncOffsetMs (0..500ms, default 0) that delays the whole
interleaved-stereo mix so audio lands on the video when it runs ahead —
OBS's documented lip-sync fix. Positive-only: advancing audio needs a
video-side delay and is out of the audio layer's scope.

- Services/Audio/AudioSyncDelay.cs: pure delay line, flushed on Configure
- AudioMixer: Func<int> syncOffsetMs seam + delay applied post-limiter
- LayoutStore.Settings + MainViewModel.Audio/VM: load/save + binding
- PreviewPane mic bar: SYNC slider + status dot (IntToSyncBrushConverter)
- AudioSyncDelayTests: identity, negative/beyond-500 clamps, 10ms→960 samples

Reference (external scan): https://obs-versions.com/blog/how-to-fix-audio-delay-on-obs
(audio ahead => positive delay). Verified: build 0 warnings; 3/3 delay tests pass.

2026-08-31 18:30:03 -07:00

gramps

dcb3637cca

refactor: split LayoutStore by concern — 500-limit Phase 3, Commit E

LayoutStore.cs 1402 -> 47-line shell + 5 partials, grouped by functionality
(line count is a consequence, not the goal):

- LayoutStore.Migrations.cs: all DB schema migration (EnsureSchema, GetUserVersion,
  MigrateSourceTable/WebcamConfigTable/ToV3/SceneTable/SceneSocialBarColumn/
  SocialsTable/SocialEntryTable)
- LayoutStore.Load.cs: Load() scene/source read-back
- LayoutStore.Save.cs: Save() full scene tree write
- LayoutStore.Settings.cs: key/value settings + mic/record-folder/reusable-stream
  + license/transition/broadcast/hotkey/window-state GetSetting/UpsertSetting
- LayoutStore.Assets.cs: GetAssetBytes/UpsertAsset blob IO
- LayoutStore.cs: shell — Instance, fields, ctor, Dispose

Converted to public partial class LayoutStore : IDisposable. Pruned per-file
dead usings. Phase 3 DOWN: no production .cs exceeds 500 lines.

Zero behavior change; build 0 warnings; 246 pass, only the 2 known failures.
Docs: ViewModels/index.md Phase 3 tracker updated in same commit.

2026-08-31 09:10:17 -07:00

3 Commits