* fix(media-use): record agent-made voice, music and sound effects in the project's media manifest
* fix(media-use): record in place only when --source says the agent made the file
* test(media-use): a rewritten agent file keeps one manifest record
* fix(media-use): leave a person's own sound effect unlabelled and mark locally made music generated
* refactor(media-use): record agent audio in-process through the shared manifest library
* style(media-use): format the in-process recording and refresh the skills manifest
* chore(skills): refresh the skills manifest for the media-use changes
* fix(media-use): report a broken ffprobe setting plainly and document the project sfx source
* style(skills): format the pipeline manifest assertion
* chore(skills): refresh the skills manifest
* fix(media-use): a regenerated file gets a fresh record, and lookups skip the replaced one
* test(media-use): a replaced record no longer answers a prompt lookup in the CLI
* chore(skills): refresh the skills manifest
* chore(skills): refresh the skills manifest from a clean tree
* fix(media-use): never give a recorded file the id of a download in flight
* chore(skills): refresh the media-use manifest hash
* fix(media-use): list only a file's newest record in candidates and the media index
* revert(media-use): leave promote as it was, nothing calls it
* test(media-use): give the index test's two assets their own files
* chore(skills): refresh the media-use manifest hash
* fix(core): a figma import lists each media file once, like media-use
* feat(player): play and loop a range of the film with range-start and range-end
The runtime takes a set-play-range control and stops on the range end frame itself.
The player wraps to range-start with loop, fires ended without it, and reports a
range cut to the film with rangeclamped. Video and __timelines players check it per tick.
* fix(player): hold a range on its last frame and let the runtime own range jumps
A runtime with the play-range capability jumps to range-start itself when a new range leaves
the playhead outside, so a stale state no longer ends the film; older runtimes keep the
player fallback, guarded until a state lands inside. Every range stop shows the last frame
before range-end; a paused playhead re-parks only when it falls outside the new range.
* fix(player): stop a range a check early and enforce its end on a video in a background tab
* test(player): share the range video setup
* fix(player): a slow frame no longer cuts a range short; a video without a range is unchanged
* fix(player): a range still stops early where video time moves once per frame
* refactor(player): cut the range look-ahead comment to one line
* fix(player): a per-frame video time rounded down still stops a range early
* test(player): pin no rounding tolerance at a film's own end
* test(studio): expect the play-range capability on control messages
* fix(core): a sound effect starts on its time instead of a frame late
* style(core): format the early-start change
* test(core): a clip past its end is never started early
* fix(core): a seek stops a clip started early, and the lead never passes 40 ms of real time
* test(core): drive the early-start tests the way the runtime receives a seek and a speed
* fix(core): the early-start lead never passes 40 ms of film time at fast speeds
* fix(core): keep a sped-up sound effect inside strict sync when it starts early
* test(core): pin the early-start cap at fast speed
* fix(core): the playhead no longer jumps back when an audio clip starts
While no Web Audio buffer plays, the transport clock follows an audio element, and each frame it re-picked the first in-window <audio> in page order. A sound effect that started during a voice line took the clock over, and since a clip starts late (seeked, asked to play, not yet producing sound) the playhead jumped back by that delay, 30 to 450 ms in real films, dragging every other track with it. The followed clip now keeps the clock while it plays. And audio may pull the playhead forward or hold it while it catches up (starting, seeking, buffering), but never push it back; a jump back past a hard sync, such as a native loop wrap, is ignored. The clock never runs ahead of its source, so media sync never chases it. Also: a playing element with a media error no longer leads the clock, and a speed change sets the clock's rate before the elements'.
* style(core): trim the handover fix's comments to what the code cannot say
* style(core): name the clock's no-rewind rule instead of commenting it
* style(core): format the clock
* test(core): pin the clock's hold while seeking and its skip of a failed clip
* fix(core): the playhead keeps its place on a speed change, a short loop or a failed clip
* fix(core): a late looping bed holds the playhead, and a clip with no source never leads it
* refactor(core): split the clock's behind-the-playhead rule into its own method
* fix(core): an audio clip with no source never leads or freezes the playhead
* fix(studio-server): a cold proxy copy answers 202 at once and the preview retries until it lands
* fix(studio): timeline filmstrips wait for a clip's proxy copy instead of failing on the 202
* fix(studio-server): a copy that cannot be made reports its failure instead of answering 202 forever
* test(studio-server): pin that a full queue is not remembered and a reset probe stops waiting
* test(studio-server): pin that a failure outside ffmpeg is remembered too
* style(studio-server): keep comment share at base in the transcoder and decoder
* fix(core): a clip's proxy URL goes on the video only once the copy is served, so every reader of it works
* fix(player): the parent media mirror follows a clip's src, so it plays the preview copy once it lands
* perf(player): the mirror re-points a clip only when the parent takes over playback
* style(core): shorten the sync-state comment in the proxy swap
* fix(studio): the timeline follows a clip re-pointed at its preview copy
* fix(core): a failed readiness check is retried instead of leaving a clip on its original
* fix(studio-server): a composition card rendered while preview copies are made is not cached
* fix(core): frame captures wait for a pending preview copy as long as for a loading video
* fix(studio-server): the preview-copy check uses the shared realpath from main
* fix(player): re-pointing a clip onto another clip's file no longer plays that file twice
* fix(player): a clip that replaces another on the same file keeps its sound
* fix(studio-server): a save never recreates a project folder renamed away
* style(cli): wrap imports after merging main
* fix(studio-server): proxy and upload answer that the project folder is gone instead of 502 or an empty 201
* test(studio-server): rename the project folder while an upload is being read
* fix(studio-server): a proxy or backup answers that a vanished project folder is gone
* test(studio-server): clean up the renamed folder after the proxy test
* refactor(studio-server): drop an unused re-export and share the folder-gone test setup
* fix(studio-server): any request failing after its project folder vanished says the folder is gone
* fix(studio-server): the folder-gone answer works on every host and drops the failed route's headers
* fix(studio-server): the folder-gone 404 keeps the host's own headers
* fix(core): no folder outside a project is created once the project folder is gone
* test(studio-server): a rename that makes the codec probe fail answers that the folder is gone
* test(studio-server): a refused render leaves no outside renders folder behind
* docs(core): wrap the mkdirWithinProject comment under the line limit
* refactor(studio-server): let the folder-gone middleware's names carry what its comments said
* fix(studio-server): say the folder is gone when a render names a composition
* fix(studio-server): check renders against the folder path and share one folder-gone answer
* test(studio-server): pass the project folder to the preview document store
* fix(studio-server): a save never recreates a project folder renamed away
* style(cli): wrap imports after merging main
* fix(studio-server): proxy and upload answer that the project folder is gone instead of 502 or an empty 201
* test(studio-server): rename the project folder while an upload is being read
* fix(studio-server): a proxy or backup answers that a vanished project folder is gone
* test(studio-server): clean up the renamed folder after the proxy test
* refactor(studio-server): drop an unused re-export and share the folder-gone test setup
* fix(core): no folder outside a project is created once the project folder is gone
* test(studio-server): a refused render leaves no outside renders folder behind
* docs(core): wrap the mkdirWithinProject comment under the line limit
* test(studio-server): pass the project folder to the preview document store
* test(core): findProjects stop tests build two projects, not four hundred files
* test(core): stop tests keep a folder queued at the stop, with room for Windows setup
* fix(runtime): a scene swap refuses when an animation outside the scene moves its elements
* test(runtime): pin the scene swap volume re-probe, host CSS variables and diagnostics-free swap
* fix(runtime): a scene swap keeps a video its scene script animates instead of reloading it
* fix(runtime): a scene swap stops every animation the old scene script started
* fix(runtime): record scene script animations only on pages a scene swap can act on
* docs(core): reword the scene animation recording comment
* fix(runtime): watch media as the page parses only on pages a scene swap can act on
* perf(runtime): a scene swap checks for outside tweens in one pass over the film's tweens
* test(runtime): pin the single revert and the cleared animation record of a scene swap
* fix(runtime): a scene swap rebuilds media when the edit changes the scene script
* fix(runtime): a scene swap undoes the sets a scene script made
* fix(runtime): a scene swap rechecks outside tweens and runs new scripts after every host
* test(runtime): pin that a tween started during the caption wait leaves the page untouched
* fix(runtime): a scene swap refuses when its script set a value on an element the swap keeps
* docs(core): say the scene recording drops a finished tween that the timeline would keep when paused
* fix(runtime): a scene swap refuses when two of its animations write to an element it keeps
* fix(runtime): a scene swap resets kept media and refuses animations outside the scene
* fix(runtime): a scene swap keeps a moved video in place and swaps tweens on plain objects
* chore(core): regenerate the inlined position-edits script for the kept-video move reapply
* fix(runtime): a scene swap checks the timeline registry as it is after the caption wait
* fix(runtime): a scene swap refuses when a scene changed during the wait or a revert re-registers
* fix(runtime): a scene swap stops every animation a revert chain registers and rechecks its hosts
* fix(runtime): a scene swap refuses a moved host or a cancelled swap and stops at a shortened end
* fix(runtime): a scene swap refuses when a scene leaves its place or the film during the wait
* fix(runtime): a scene swap checks only its host's place, so a later body append does not refuse it
* fix(runtime): a scene swap refuses when the film's scene layout changed during the wait
* fix(runtime): a scene swap refuses when the order around a scene changed during the wait
* test(runtime): pin that a scene swap checks the film root order when every scene is wrapped
* fix(runtime): a scene swap gives kept media the mute, rate and loop a fresh load gives it
* fix(runtime): a scene swap rebuilds media a script wrote attributes on, keeping the rest
* fix(runtime): a scene swap keeps media carrying the runtime classes or reordered attributes
* fix(runtime): a scene swap resets a kept video's volume as a load does, not through the volume probe
* perf(core): a bundled film inlines each font once instead of once per composition
* fix(core): font dedupe keeps the last copy, so the rule the browser uses never changes
* fix(core): font dedupe merges only exact copies, from styles that always apply
A style postcss cannot parse ships as authored instead of failing the bundle.
The key keeps !important and whitespace inside quoted family names.
Styles behind a media query, a non-CSS type, <noscript> or <svg> neither lose
a copy nor keep one.
* perf(core): font dedupe runs before inlining, so bundling is no slower
Deduping after inlining made postcss parse every inlined font: a three-scene
fixture went from about 40 ms to about 450 ms. The same url text inlines to the
same bytes, so deduping first gives the same output.
* fix(core): a scene-part bundle keeps each scene's own font copy, so a scene still swaps alone
* chore(core): shorten the font dedupe comment
* chore(core): trim the font dedupe comments to keep the file's comment share
* feat(studio): export snapping, the marquee and picker describe for a host's own preview
* fix(studio): a host pick type must bring its own marquee resolver
* fix(producer): gif renders survive rgb frames among transparent ones
* test(producer): run the gif mixed-frame encode test in the ffmpeg lane
* fix(producer): gif encode test passes the argv, reachability and comment checks
* fix(producer): transparent gifs clear every frame so an opaque frame never lingers
* fix(producer): only gifs that turn translucent after an opaque frame get whole cleared frames
* fix(core): plain text keeps its own gif control block; gif encode failures share one shape
* feat(cli): hyperframes projects finds the HyperFrames projects on this machine
* refactor(core): keep the project rule's comment share under its package's
* fix(cli): projects keeps Spotlight hits under a symlinked root and refuses a missing root
* style(cli): format the projects walker and its tests
* fix(cli): projects tests pass under a symlinked temp folder and a bad root errors on stderr
* test(cli): projects tests hold on Windows and cover an unreadable root
* style(cli): format the projects command and tests
* refactor(cli): split the projects Spotlight check and regenerate the skills manifest
* refactor(core): findProjects moves to @hyperframes/core/projects so Desktop can import it
* chore(core): publish the projects subpath
* fix(core): findProjects fails on a root it cannot read instead of finding nothing
* docs(core): name the project marker writers without naming one app
* refactor(core): ship findProjects as a core export only, with no CLI command
* feat(core): findProjects stops on an abort signal and defaults to the home folder
* fix(core): findProjects checks an aborted signal first and stops when onProject throws
* perf(core): playback housekeeping runs on a timer, and rebinds stop re-sampling silent media
While playing, the transport re-posted the clip manifest every 20 frames and
re-bound media every 30, frame-counted, so a 120 Hz display did both twice as
often for a film that was not changing. Playing, those jobs now run when the
composition changes (rate-limited as before) and on a one-second poll for
what nothing can push.
A rebind re-probed every media element's volume by seeking the whole timeline
60 times per second of clip, about 1,500 seeks and 50-140 ms in one frame.
The probe seeks with events suppressed, so only a tween on the element that
names volume can move it; an element no tween touches is now answered from
the tweens without seeking.
* fix(core): a data-width or data-height change applies while playing and parked
postTimeline applies the root's sizing, and it now runs when the composition
revision moves. The revision only watched timing attributes, so a size edit
waited for a pause while playing, and on main it was missed while parked
too. The observer now also watches data-width and data-height. The tick
comment is trimmed to three lines, the tick reuses its playing flag, and the
cadence test is renamed to what it checks now.
* test(core): share one 120 Hz frame step in the transport park tests
The two playing tests each defined the same frame helper; one frame120Hz
now sits beside settle and all four loops use it. No source change.
* refactor(core): drop the playing poll doc comments
The comment ratchet does not let a file's comment share rise; the reason
lives in the PR body.
* fix(core): a playing clip's track, label and z-index reach Studio again
The playing path had dropped the periodic manifest post, and the
composition observer does not see data-track-index, data-timeline-label or
an inline z-index on an existing clip (watching style would fire on every
GSAP frame). On the playing poll the runtime now builds the manifest and
posts it only when it differs from the last one posted, so an edit lands
within a second and a steady film still posts nothing.
* fix(core): keep sampling volume when a tween drives a non-DOM object
A tween on a plain-object proxy whose setter writes the element's volume
names neither the element nor volume, so the fast skip dropped it and
WebAudio-routed preview played the static data-volume (0 where the film
asks for 0.375). The skip now applies only when every tween targets DOM
nodes; any other target falls back to the full volume probe, as on main.
* fix(core): skip the volume probe again for spacers, calls and counters
The non-DOM fallback fired on any plain-object or function target, so a
tl.to({}, {duration}) spacer, a tl.call or a tweened counter brought back the
full probe on ordinary films. It now falls back only when a tweened property
resolves to a setter on the target or its prototype chain, which is what a
gain proxy or a class with a volume setter uses; data properties skip.
* fix(core): post a clip edit made while playing when playback stops
A label, track or inline z-index edited while playing and then paused before
the next one-second poll was never posted: once parked, nothing watches it.
The tick where playback stops now runs the same manifest diff once and posts
only if the manifest changed.
* perf(core): skip hidden clips' content so the browser stops decoding their images
Hidden timed clips get content-visibility:hidden while their inline visibility is hidden,
from script evaluation on. A clip due within the look-ahead (2 s by default) keeps its
content live, so its images load before it shows.
* perf(studio-server): load preview images lazily so hidden scenes fetch nothing
* fix(core): stop the readiness scan waiting on and decoding later scenes' images
* perf(studio-server): keep first-frame images eager so the preview opens as fast as before
Only images inside a clip with a numeric start after 0 go lazy; a start the route
cannot read stays eager.
* perf(core): keep clips that start at 0 laid out before the first pass so the first frame is on time
* perf(core): open the preview on time by hiding only lazy images before the first pass
GSAP reads the computed style of the elements it animates while timelines build. Inside a
content-skipped clip every read forces a style update, which cost about 65 ms at open on the
bench composition. Before the first pass the rule now takes only lazy images out of layout, so
hidden later scenes still do not load theirs; after it, the skip rule keeps their content skipped.
* fix(core): hold a paused jump on the previous picture until the next scene's images decode
* fix(studio): swap in a reloaded preview only after its restore seek has painted
* fix(core): apply a held paused jump after 1 s when an image never decodes
* fix(core): keep hidden-scene image skipping and held jumps to Studio's preview, never renders
* fix(studio): reapply manual edits once a held paused jump lands
* fix(studio): copy a clip without the preview's lazy-loading marks
* fix(studio-server): mark preview images lazy without re-encoding the document's entities
* fix(core): share one preview-mark constant between the runtime and the preview route
* fix(studio): reapply manual edits a second time only after a seek that was held
* refactor(core): share the hidden-ancestor walk between clip visibility and image holds
* fix(core): import the studio preview mark from its own subpath
* fix(studio-server): find preview images with the linear html scanner
* chore(core): drop two doc comments the scanner's names already carry
* fix(studio-server): serve the preview mark as its own meta, apart from the GSAP fallback script
* fix(studio-server): capture thumbnails and frames from the preview without lazy images or the mark
* fix(core): let the full readiness scan wait on every image except lazy ones off the first frame
* fix(studio-server): keep an authored loading attribute in any letter case on preview images
* fix(core): leave template content out of findStartTags so preview images match the DOM
* fix(studio): send Ask agent the live markup without the preview loading marks
* chore(core): drop the template note from findStartTags, its test carries it
* perf(studio-server): splice lazy attributes into the preview in one pass
* fix(studio): keep authored image loading on copy and Ask agent by marking preview-made lazy images
* test(studio-server): follow the capture preview URL back to its sub-composition for every project id
* refactor: name the upcoming-clip and GSAP fallback marks once
* fix(studio-server): keep capture builds out of the on-disk preview store
* fix(studio-server): a write through a link lands on the file the system resolves
* fix(cli): resolve catalog install paths as the system does, matching the install root
* fix(cli): list installed files relative to the real project folder
* fix(studio): reload the preview only when a file it loaded changes
* test(studio): read the owner id from the new change-owner shape
* refactor(studio): drop a comment the parser name already says
* fix(studio): keep reloading until the preview is built, and count what its document names
* style(studio): format the reference pattern and name the kept reload
* fix(studio-server): scan preview references in linear time and refresh all thumbnails on a merged reload
* fix(studio): keep a waiting film change when a file the preview never loaded arrives behind it
* test(studio): name the preview ownership test for what it checks
* chore(ci): allow the watchIgnore removals and trim the new comments
* fix(studio-server): reload the preview when a folder holding a file it loaded moves in or out
* perf(studio-server): check a changed folder in one lookup and cover every reference form
* fix(studio-server): record read folders for a project at the filesystem root
* fix(studio-server): reload the preview when the file a symlinked asset points at changes
* fix(studio-server): resolve symlinks on every preview read and key projects by their real folder
* fix(studio-server): record every link a preview read passes through, resolved as the system does
* fix(engine): export draws a video in exactly the frames export visibility shows it
* test(producer): guard that chunk frame planning snaps clip windows like export
* refactor(engine): set the render fps once per frame table and name its clip window
* chore(engine): trim frame table comments
* fix(core): clips that meet within float rounding count as meeting in edits and playback
* fix(engine): hand a shared clip boundary to the incoming clip in export, as preview does
* perf(studio): tag each scene's parts in the preview so one can be swapped
With sceneParts (Studio preview only) the bundler tags each top-level scene's host, styles and
inline scripts with data-hf-scene; nested scenes belong to their top-level scene. The preview
route then adds a manifest: a hash of everything outside the scenes and one hash per scene,
so the preview can tell when a rebuilt document differs only inside some scenes. Renders are
unchanged.
* fix(core): keep scene order in the preview manifest and mark unswappable scenes
A moved or reordered scene now changes the shared hash, a nested scene
keeps its @import first, and a scene whose script leaves work running
is marked so edits to it take the full reload.
* refactor(core): keep the scene swap side-effect check in the bundler
* fix(core): refuse swapping a scene that runs its own script file
A swap never re-runs external scripts, so a scene file keeps driving the
replaced nodes. Library URLs stay swappable.
* fix(core): refuse swaps for async scene setup and keep the shared @import first
Scenes that finish building after an await or a .then, animate elements
directly or touch the page head and body now take the full reload, and
splitting out scene styles no longer leaves the shared import late.
* fix(core): refuse swaps for scene scripts that throw when run again
Custom element and CSS property registration, sockets, draggables and
infinite tweens now refuse too, and ticker or animate inside a name no
longer does.
* fix(core): refuse swapping a scene that runs a module script or import map
* fix(core): run a scene's local script file in source order in the preview
* fix(core): refuse a scene swap only for defineProperty on a global
* refactor(core): cut scene swap comments to what names and types do not say
* fix(core): find the head tag for the scene manifest in linear time
* fix(core): leave a document with an unclosed head tag without a scene manifest
* fix(core): keep preview scene parts in render order and refuse scene-only script URLs
* fix(core): keep render @import precedence in the preview and swap only known libraries
* fix(core): keep preview scene styles where a render merges them and resolve library URLs
* fix(core): scene swap refuses standalone gsap tweens and root scripts that hold scene nodes
* fix(core): refuse to swap exactly the scenes a script outside them selects
* perf(core): the preview scene scan looks up ids and classes once instead of querying per string
* docs(core): trim three scene-parts comments to the facts a reader needs
* fix(core): refuse to swap a scene a script outside it reaches by tag name
* fix(core): keep scenes swappable when a script outside them only creates elements by tag
* test(core): check scene tags on elements, not in the inlined runtime's text
* fix(core): refuse swaps for chained scene timelines and any-case or universal root selectors
* fix(core): refuse swaps for root selectors through tags above the scenes
* fix(core): put the scene manifest inside the head when a head attribute holds a quoted >
* fix(core): place the scene manifest with the shared head scanner instead of a regex
* feat(core): the runtime reports where a composition's animations end, one cycle each
* fix(core): the reported animation end no longer moves with the playhead
* fix(core): the animation end skips script-made WAAPI and counts one stagger cycle
* fix(core): the animation end follows stretched keyframes and a Lottie's scene start
* refactor(core): tidy the Lottie animation end reader and pin its inferred length
* perf(core): a paused preview stops running its audio output
The preview runtime opened its AudioContext at load and left it running for the whole
session, so a paused Studio kept an audio output stream rendering silence in Chrome's
audio service and output threads, and on Chrome's fake sink once a context has been silent
for 30 s.
The transport now suspends the context once it has been paused for a second with no
captured track playing, and resumes it for Play and for a captured track that plays while
paused (the scrub route). The delay keeps a stop-and-reschedule inside one play (a rate
change, a hidden track, a seek while playing) from bouncing the output. A Play that lands
while a suspend is pending resumes anyway, and a Pause that lands while Play waits on
resume() lets the context go back to sleep.
* fix(core): decoded audio after an idle pause starts where the picture is
Review follow-ups to the idle suspend:
- A decoded track read its start time before waiting for the context to wake, so every
Play after an idle pause anchored the clock that far back and the picture stepped back.
The transport now reads the time after the wake.
- The transport kept every element it ever captured. It now holds only captured tracks
that are playing, so a replaced track is free once it pauses.
- A failed suspend and destroy() both clear the pending-suspend flag, so the next pause,
or a fresh init(), can suspend again.
- A test pins the one-second idle delay; the redundant "ended" listener is gone, since a
track that ends fires "pause" first.
* fix(core): a preview whose browser starts audio late still goes quiet when idle
The idle timer was armed only if the context was already running when the transport opened
it or resumed it, so a browser that starts the context a moment after construction left it
running until the first pause. The transport now arms the timer from the context's own
statechange event, which Chrome fires after construction and on every resume, so the
separate arming in init() and after a stale Play are gone.
* fix(core): a reloaded track no longer keeps a paused preview's audio awake
Reloading a playing captured track (el.load(), a src swap) stops it without a "pause" event,
so the transport kept counting it as playing and a paused preview never went quiet. The
idle check now drops tracks that are already paused before it counts, and "emptied" is
handled like "pause" so the idle timer is armed when a reload stops a track.
* perf(core): a paused preview waits 10 s before its audio output goes to sleep
* docs(core): say why a paused preview's audio waits 10 s before it sleeps
* fix(core): a browser-side audio suspend drops the preview's idle timer
* fix(core): an added sub-composition keeps its declared variable defaults when bundled
parseHTMLContent only treated input as a full document when it started with
a doctype or <html>. Files installed by `hyperframes add` start with a marker
comment, so they were wrapped as a fragment in a new <html> and lost their own
<html data-composition-variables>. Leading comments are now skipped first.
* fix(studio-server): an installed block's preview keeps its <html> variables
isFullHtmlDocument moves to core beside parseHTMLContent and both callers use
it, so the standalone preview of a file that `hyperframes add` installed (a
marker comment above the doctype) is treated as the full document it is. The
leading-comment skip also handles an empty `<!-->` comment, and `<html-card>`
style elements no longer count as a document.
* fix(core): a doctype written without a space still reads as a full document
* perf(runtime): swap edited scenes in place from a rebuilt preview document
window.__hfSwapScenes(html) compares the preview manifests. When the rebuilt document differs
only inside existing scenes, it replaces each changed scene's host, styles and scripts, drops
the old scene timelines (nested ones included), reruns the passes boot runs on scene DOM,
releases the old media, rebinds and keeps the playhead. Anything else rejects before touching
the film, so the caller does its full reload.
* fix(runtime): refuse unsafe scene swaps and redraw the swapped scene like a seek
The swap now refuses scenes marked unswappable or with more than one
host, keeps the style order, lets adapters find the new scene, redraws
through the transport seek and rejects when torn down mid-swap.
* fix(runtime): scope swap caption overrides to the swapped scene and swap only manifest pages
Other scenes kept re-dimmed caption words after a swap, and pages without
a scene manifest offered a swap that could only be refused.
* fix(runtime): repaint caption colours that were overridden after their tween rendered
A swapped scene, or a film reloaded mid-way, rendered its caption tweens
before the overrides rewrote their colours, so words kept the old colour.
* fix(runtime): repaint caption colours of a swapped scene the playhead has passed
* refactor(core): cut scene swap comments to what names and types do not say
* fix(runtime): a scene swap keeps other media loaded and waits for new media by reloading
* fix(runtime): a scene swap resolves bound and proxied media before refusing
The new-media check compared the new scene raw src against the live DOM, which variable
bindings and the media proxy have already rewritten. A scene with a customised data-var-src
logo, or a proxied video, was refused on every edit. Both sides now resolve src the same way:
the bound variable value, else the src attribute before any proxy swap, which the proxy now
records where it rewrites the src.
* fix(runtime): a scene swap binds variables only in the swapped scene, before media setup
The swap re-ran variable bindings over the whole document after binding media, so a proxied
video in any scene got its original, undecodable src back and a bound text in an untouched
scene was rewritten. Bindings now run only inside the swapped hosts and before media binding,
as boot does, and the src guard compares against the src the element had before its proxy.
* fix(runtime): a scene swap keeps unchanged video and audio playing
A text edit beside a video rebuilt the video from scratch, so it went blank until it loaded
again. A video or audio in the edited scene whose src matches one in the old scene (same src,
same order among those) is now the old element, moved into the new scene and given the new
element attributes and children, except src and the runtime-owned preload.
* fix(runtime): a scene swap refuses more new-media forms and names the scene
The new-media check missed uppercase URL(), image-set() and @import strings, SVG image href
and xlink:href, and object data, so a new asset could pop in after the swap. Its refusal now
says the media is new to this scene, which is what it checks. The existing inline style url(),
poster and srcset checks get tests of their own.
* fix(runtime): a scene swap loads caption overrides before changing the page
The swap wrote the new scene first and only then fetched caption-overrides.json, so a stalled
request left the preview half swapped when the caller gave up and reloaded. The overrides are
now fetched before the first write and applied from the fetched data. A swap that another swap
finished first while it waited now refuses, since its document is the older one.
* refactor(runtime): keep the proxy src record within the comment share
* fix(runtime): a scene swap keeps media only when the edit left it as written and ungraded
Keeping a live video or audio and copying the new attributes onto it was not the same as a
fresh load: muted only sets the initial state, and a graded video left its grading canvas in
the discarded scene, so it went black. The swap now keeps an element only when its authored
markup, captured before the runtime writes to it, equals the new one, and the grading runtime
says it is not graded. Anything else is rebuilt fresh; the attribute copy is gone.
* fix(runtime): a waiting scene swap refuses after any other swap changed the page
The check compared the scene manifest, which misses a scene changed and changed back while a
captioned swap waited for its overrides; that swap then went on with stale elements and wrote a
wrong manifest. A generation count the swap owns now moves on every page change by a swap, so
any intervening swap makes the waiting one refuse.
* fix(runtime): a scene swap warns about a non-media data-var-src once, as a load does
The new-media scan resolved every bound src through the warning path, so each swap logged the
ignored data-var-src again for the old and the new element. The scan now resolves silently and
only the bindings pass warns, once for the new element.
* refactor(runtime): keep the grading query within the comment share
* fix(runtime): a scene swap replaces each of a scene's styles in its own place
The bundle can now give one scene several style runs separated by another scene's, when its
nested scene comes later in source order. The swap put all new styles before the first old one,
so a later same-named @keyframes moved ahead of the other scene's and the cascade differed from a
fresh load and the render. Each new style now replaces its old counterpart in place, and a scene
whose style count differs is refused before any write.
* test(core): check the bundled stylesheets, not the inlined runtime, for a leftover @import
* fix(runtime): a video kept through a scene swap starts its new tweens from its authored values
* fix(runtime): a from() caption colour tween with an override still lights its word up
* fix(runtime): a scene swap reverts the old timelines, so a kept video shows the edited CSS
* fix(runtime): a caption word with a dim-colour override still lights up when spoken
* fix(runtime): a word whose colour override lands late still looks dim before it is spoken
* fix(runtime): a caption override keeps class highlights and resolves var() colours per word
* fix(core): muting or unmuting an audio group while playing reaches the mix
* fix(core): a group mute uses its bus gain; only an unmute restarts the mix
* fix(core): unmuting a group captures members that have yet to play, without restarting routed ones
* fix(core): unmuting a group skips members muted on their own
* fix(core): a film stops at its declared length instead of playing its animation past it
* docs(core): the root-length floor comment names what it still does
* fix(core): report the real length of a film shorter than one second
* test(core): pin sub-second lengths with and without timed clips
* fix(core): any positive declared length stops the film, even a single frame
* test(core): pin every declared length in one table and read the player test by its fields
* fix(player): end and loop films whose length falls between two frames
* fix(player): end a stopped film within half a frame, not while it still plays
* fix(player): end a film at the runtime's exact time so a pause on the last frame stays a pause
* fix(player): end a film when the runtime reports its end, not by comparing two lengths
* fix(player): keep a pause the runtime marks as not ended, even at exactly the length
* fix(player): trust a not-ended report only from a stopped runtime
* fix(core): a video's voice keeps pace with the playhead instead of trailing it
A playing video is exempt from seek-based drift correction, because seeking resets its decoder and stutters. Nothing else corrected it, so a talking-head video that started a few frames late (92 ms measured in Studio) kept its voice behind the playhead for the whole clip, and further behind after each loop. Media sync now runs a video that drifts past the 40 ms sync tolerance 3% fast or slow (pitch preserved) until it is within 10 ms, then returns it to the authored rate. The rate is written only when steering starts or stops, since every rate change costs Chrome a frame; large jumps still hard-seek. Measured in Studio: 92 ms constant on main, about 10 ms steady with the fix.
* fix(core): video steering holds through speed ramps and hard syncs
Review follow-ups: steering inferred itself from the element's current rate, which a speed ramp moves every tick, so a ramped video stopped steering at the 40 ms tolerance instead of 10 ms; the direction is now kept per element. A hard-sync tick plays the authored rate, since its pre-seek offset is stale, and a rate that reads back at lower precision is not rewritten every tick.
* test(core): pin clearing and write-once for video steering
Review follow-up: nothing failed when the steering state was left uncleared on eviction or pause, or when the rate compare went back to strict equality. Tests now cover all three, and the sync-state test seam reports the steering map so the proxy's leak test sees it.
* chore(core): format the video steering and keep its tolerance module-private
* chore(core): shorten the video steering comment
* fix(core): scrubbing stays audible after the first Play
Pause unplugged every track Web Audio had captured, and a captured track has no native output, so Studio's paused scrub audition went silent after the first Play for the rest of the session. A captured track outside a play now reaches the speakers the way an uncaptured one does, and Play takes that route away before building its own, so there is one path out at a time.
* fix(core): a track muted while playing goes silent at once
Review follow-ups to the idle route: stopAll hands every captured track back its own volume on that route, so a track hidden while playing sounded for one frame before media sync zeroed it; the hide reschedule now zeroes hidden tracks in the same task. stopAll also advances the play generation, so a schedule still waiting on resume() when Pause lands is dropped instead of giving the track a second path out.
* fix(core): a replaced audio capture no longer mutes its track
When a newer play pass replaced a capture still waiting on resume(), the old pass saw null and treated it as a failed capture, muting a processed track at a non-unit rate for the rest of the session. The fallback now ignores results from a stale generation.
* test(core): reset the pending resume between idle-route tests
* chore(core): trim the scrub fix's comments to the ratchet
* fix(core): a project path typed in another letter case stays inside the project
* fix(core): project paths still resolve on volumes that refuse the native realpath
* fix(core): report one composition size in stage-size and timeline messages
The runtime posted the composition size twice per timeline post, read two
ways: stage-size used the lenient reader the stage layout uses, the timeline
payload a strict one. A root with data-width="1080px" reached the player as
1080x1920, then 1920x1080, so a portrait film was framed as a cropped
landscape picture. Both messages and the stage layout now share
parseCompositionDimension, and stage-size sends the value unrounded.
* fix(core): the layout diagnostic and nested roots read the same composition size
* fix(core): read composition sizes as whole px, as the renderer and Studio do
* chore(core): one comment line on the composition size reader
* fix(core): keep fractional layout sizes and report the same root in both size messages
Layout (the stage, timed clips, flattened nested roots, the layout
diagnostic) reads data-width/data-height as before, fractions kept. Only the
size the runtime reports in stage-size and timeline reads whole px. Both
messages and the stage layout now take the root from one finder, so an
earlier composition no longer replaces the explicit data-root's size.
* fix(core): use the size messages root for the clip tree and analytics
* fix(core): a clip gets its own inline display back when the runtime shows it
The visibility pass wrote a plain display:none over a hidden clip's inline display and removed
the property when showing it, so an author's display:flex came back as block and an author's
display:none !important showed the clip. The data-hidden path kept the value but not its
priority. Both paths now save the author's value and priority once and put exactly that back.
* fix(core): a plain inline display:none still shows at the clip's start
A plain none on a hidden clip can be a runtime hide left behind (a Studio reveal restoring it),
so it is not saved as the author's value; the clip shows at its start as before. Values with a
priority, and every other value, are still put back.
* fix(core): keep an author's plain display:none through a data-hidden toggle
The leftover-hide rule applies to the timed hide only; a data-hidden hide saves the author's
plain none as it is, so un-hiding keeps the clip hidden, as on main.
* docs(core): say the leftover rule belongs to the timed hide
* fix(core): a clip that starts later keeps the place and size its CSS gives it
A timed root clip that had not started when the runtime laid clips out was display:none,
so it measured as auto: it was pinned to the top-left corner, and an empty full-frame clip
got no size. Measure a hidden clip as it will show and never pin, so it lays out like a
clip showing at load.
* perf(core): lay out hidden clips in one pass and pin the !important restore
Lift every hidden clip's display:none at once so a layout pass forces one layout instead of
one per hidden clip; it runs every 20 frames during playback. Add a test that an author's
display:none !important comes back with its priority, and fix comments that described the
removed pin.
* test(core): describe what the applyClipLayout test block covers
* refactor(core): name the display lift instead of commenting it
Miguel Ángel