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feat: publish av-tools 0.2.0

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Albrecht Degering
2026-07-27 01:04:21 +02:00
parent fcc537b024
commit 0a4548851c
68 changed files with 4130 additions and 605 deletions
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docs/PERFORMANCE.md
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@@ -6,12 +6,13 @@ output at once. No hardware encoder is used.
## Fixed download footprint
Uncompressed self-hosted core assets for 0.12.10:
Uncompressed self-hosted core assets for
`0.12.10-reviewed-stack5m.1`:
| Mode | JavaScript/worker | WASM | Total |
| ------------- | ------------------: | -----------: | -----------: |
| single-thread | 111,804 B | 32,232,419 B | 32,344,223 B |
| multithread | 128,947 B + 2,115 B | 32,718,323 B | 32,849,385 B |
| single-thread | 111,804 B | 32,232,580 B | 32,344,384 B |
| multithread | 128,953 B + 2,115 B | 32,718,455 B | 32,849,523 B |
Only the selected mode is loaded. HTTP compression may reduce JavaScript
transfer but not necessarily WASM to the same degree; report transfer and
@@ -72,9 +73,18 @@ Estimated output warns at 512 MiB and is blocked at 1 GiB. FFmpeg jobs are
serial; the application retains at most eight scheduled operations in its
in-memory queue. Timeline clips are capped at 100, streams per input at 64,
images at 8192×8192/67,108,864 pixels, generated output files at 255,
contact-sheet cells at 500 and runtime at four hours. The documented
ffmpeg.wasm input ceiling is 2 GiB, but real limits can be substantially lower
on mobile or memory-constrained browsers.
contact-sheet cells at 500, scene-change results at 100, crossfades at 10
seconds and runtime at four hours. Scene selection is a bounded two-step
workflow but its analysis step can still decode the complete source when few
frames meet the threshold. The documented ffmpeg.wasm input ceiling is 2 GiB,
but real limits can be substantially lower on mobile or memory-constrained
browsers.
Source inspection has a bounded, size-aware watchdog: 30 seconds for small
files, a two-MiB-per-second scan budget for larger files, and a five-minute
ceiling. Recognized local audio/video can begin browser playback from its
temporary object URL while that worker inspection continues; completed probe
metadata remains authoritative for editing and export.
Lowering resolution, duration, frame rate, passes and output count reduces
work. MT can be faster but consumes more memory/CPU and requires isolation; ST