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feat(viewer): WMV cutscene player with scrub, keyboard + audio

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Add an in-explorer video player for the dat/movie/*.wmv cutscenes.

Decode via the ffmpeg/ffprobe CLI (no libav linking): video streams from an
`ffmpeg -f rawvideo -pix_fmt rgba` pipe read into fixed w*h*4 frame chunks over
a bounded channel (paused/behind => ffmpeg back-pressures on its pipe); one
reused Image is overwritten in place each tick. Audio is best-effort: the track
is pre-decoded to a temp stereo WAV and played through a rodio Sink (volume /
play / pause / seek-via-skip_duration for free). Native-only under
cfg(not(wasm32)); VideoPreview registers unconditionally so the UI compiles for
wasm. Mirrors the .pak load pipeline (FileSelected -> bg thread ->
IsoLoaderMsg::VideoLoaded -> apply_loaded_video -> advance_video_playback), with
a single free_video teardown wired into every other viewer's reset.

Controls:
- play/pause button, click-on-frame toggle, Space / arrow (+-10s) shortcuts
- seekable timeline with mm:ss labels; volume slider (greyed when no audio)
- live scrubbing: a coalescing one-shot `ffmpeg -ss -frames:v 1` grabber always
  jumps to the knob's latest position, so dragging shows the frame under the
  knob in real time; that grabbed frame also bridges the gap after a commit-seek
  so there's no black flash while the streaming decoder catches up.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
MechaCat02
2026-07-11 14:31:52 +02:00
parent 589659bec6
commit 91bd2543f4
5 changed files with 1304 additions and 22 deletions
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406
Cargo.lock generated
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@@ -60,8 +60,8 @@ dependencies = [
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