Add default video length setting and inherit duration when extending.

Co-authored-by: Cursor <cursoragent@cursor.com>

pages/index.vue

@@ -238,7 +238,7 @@
             @remove="deleteDirectorScript"
           />
           <p v-if="shotScriptMode && studioMode === 'video'" class="mb-2 text-xs text-zinc-500">
-            Paste a block, or load a saved Director script. Text before the first marker is shot 1. Put <span class="font-medium text-zinc-300">shot 2</span>, <span class="font-medium text-zinc-300">shot 3</span> on their own lines to queue extensions — a line like <span class="font-medium text-zinc-300">Shot Type</span> will not start a new shot. Every shot uses the duration slider. Global locks are inherited; each shot should add one beat.
+            Paste a block, or load a saved Director script. Text before the first marker is shot 1. Put <span class="font-medium text-zinc-300">shot 2</span>, <span class="font-medium text-zinc-300">shot 3</span> on their own lines to queue extensions — a line like <span class="font-medium text-zinc-300">Shot Type</span> will not start a new shot. Queued shots use the duration slider; Extend copies the length of the clip you are extending. Global locks are inherited; each shot should add one beat.
             <span v-if="identityPrompting"> Character stills ride along as extra pictures. Picture 1 is the current frame (last frame after shot 1), not the original start still.</span>
           </p>
           <p v-else-if="identityPrompting" class="mb-2 text-xs text-zinc-500">
@@ -2298,6 +2298,12 @@ import {
   type VideoEngineId,
   type VideoStartId
 } from '~/utils/videoModels'
+import {
+  VIDEO_DURATION_DEFAULT,
+  clampVideoDuration,
+  clipPartDuration,
+  defaultVideoDurationPref
+} from '~/utils/videoDuration'
 
 const runtimeConfig = useRuntimeConfig()
 const route = useRoute()
@@ -2537,7 +2543,7 @@ const cfgTouched = ref(false)
 const fps = ref(24)
 const samplerName = ref('res_multistep')
 const scheduler = ref('simple')
-const duration = ref(5)
+const duration = ref(VIDEO_DURATION_DEFAULT)
 const seedInput = ref('random')
 const inputSeed = ref('')
 
@@ -2653,7 +2659,7 @@ const extendClipId = ref('')
 const extendPrompt = ref('')
 const extendPromptPre = ref('')
 const extendPromptPost = ref('')
-const extendDuration = ref(5)
+const extendDuration = ref(VIDEO_DURATION_DEFAULT)
 const lastFrameUrl = ref('')
 const lastFrameLoading = ref(false)
 const lastFrameRevealed = ref(false)
@@ -3933,6 +3939,8 @@ onMounted(async () => {
     activeQueueId.value = localStorage.getItem(QUEUE_STORE) || ''
     const savedPreset = localStorage.getItem('aigen-prompt-preset')
     if (savedPreset) recommendPresetId.value = savedPreset
+    duration.value = defaultVideoDurationPref()
+    extendDuration.value = duration.value
   } catch { /* ignore */ }
   applyInstancePrivacy()
   bindConcealListeners()
@@ -4098,8 +4106,7 @@ watch(imageV2LoraStack, (value) => {
 }, { deep: true })
 
 function clampDuration(value: number) {
-  if (!Number.isFinite(value)) return 5
-  return Math.min(120, Math.max(0.5, Math.round(value * 10) / 10))
+  return clampVideoDuration(value, defaultVideoDurationPref())
 }
 
 function clampCfg(value: number) {
@@ -5188,7 +5195,9 @@ function studioJobStatusLabel(job: { status: string; cutIn?: boolean; holdForCut
 }
 
 function studioJobShotLine(job: { kind?: string; shotCount: number; completedCount?: number; status: string }) {
-  if (job.kind === 'music') return 'ACE-Step'
+  if (job.kind === 'music') {
+    return String(job.payload?.engine || '').toLowerCase() === 'yue' ? 'YuE' : 'ACE-Step'
+  }
   if (job.kind === 'edit') {
     const total = job.shotCount || 1
     return total <= 1 ? 'image edit' : `${total} passes`
@@ -5588,11 +5597,13 @@ async function resumeActiveJob() {
     jobId?: string | null
     video?: { jobId?: string; hideThumbnail?: boolean; folderLocked?: boolean }
     edit?: { jobId?: string; hideThumbnail?: boolean; folderLocked?: boolean }
+    music?: { jobId?: string }
     hideThumbnail?: boolean
     folderLocked?: boolean
   } | null>('/api/generate/active').catch(() => null)
 
-  const videoId = storedVideo?.jobId || active?.video?.jobId || (!active?.edit?.jobId ? active?.jobId : null) || ''
+  // Never fall back to top-level jobId — that used to steal live music jobs into Video Output.
+  const videoId = storedVideo?.jobId || active?.video?.jobId || ''
   const editId = storedEdit?.jobId || active?.edit?.jobId || ''
 
   if (videoId) {
@@ -5785,13 +5796,10 @@ function stillFileName(still?: Pick<LibraryStill, 'name' | 'filename'> | null) {
 }
 
 function clipGenerateDuration(item: LibraryClip) {
-  if (item.parentClipId) {
-    const parent = clips.value.find(clip => clip.id === item.parentClipId)
-    if (parent?.duration && item.duration && item.duration > parent.duration + 0.4) {
-      return clampDuration(item.duration - parent.duration)
-    }
-  }
-  return clampDuration(Number(item.duration) || 5)
+  const parent = item.parentClipId
+    ? clips.value.find(clip => clip.id === item.parentClipId)
+    : null
+  return clipPartDuration(item, parent)
 }
 
 function familyPartsFor(item: LibraryClip) {
@@ -6043,7 +6051,9 @@ async function openExtend(item?: LibraryClip) {
   extendPromptPre.value = parts.pre
   extendPrompt.value = parts.prompt
   extendPromptPost.value = parts.post
-  extendDuration.value = clampDuration(duration.value)
+  extendDuration.value = clip
+    ? clipGenerateDuration(clip)
+    : clampDuration(duration.value)
   extendLoraStack.value = readLoraStack(clip)
   lastFrameRevealed.value = false
   extendOpen.value = true
@@ -6752,12 +6762,13 @@ function revealAndPlay() {
 }
 
 function queueExtension() {
+  const prior = extensionQueue.value[extensionQueue.value.length - 1]
   extensionQueue.value.push({
     id: crypto.randomUUID(),
     prompt: prompt.value.trim(),
     promptPre: promptPre.value,
     promptPost: promptPost.value,
-    duration: duration.value,
+    duration: clampDuration(prior?.duration ?? duration.value),
     loraStack: []
   })
 }