Files
ArtPlayer/assets/example/multiple.subtitles.js
糖猫猫andrionzhao 0896841d23 feat: batch video upscaling with folder upload, directory save, and result comparison (#1051)
* feat: support batch video upscaling with folder upload and directory save

- Add multi-file selection and entire folder upload (webkitdirectory)
- Support drag & drop of both files and folders via FileSystemEntry API
- Add save directory picker using File System Access API (showDirectoryPicker)
- Process videos sequentially with per-file progress and status tracking
- Add right-side result list with click-to-compare functionality
- Add per-video duration and total batch duration display
- Add retry button for failed items with error detail display
- Remove auto-play on comparison viewer load
- Fix worker error handling: handle "error" command to reject stale promises
- Fix event listener accumulation in video comparison (AbortController)
- Fix XSS risk by escaping HTML in all innerHTML injections
- Fix URL revocation timing in download to prevent large file truncation
- Extract writeToSaveDirectory and truncateName helpers to reduce duplication
- Add Usage Guide panel explaining single/multiple/folder upload options

Files changed:
  docs/upscaler/index.html  (+1110/-181)
  docs/upscaler/upscaler.js (+110)

* fix: prevent auto-play and resource consumption during upscaling

- Set preload="metadata" on preview and comparison video elements
- Explicitly pause preview video after setting src in showVideoPreview
- Remove preview video seek sync from batch processing progress callbacks
  (was causing continuous decode during upscaling, wasting GPU resources)
- Remove preview video seek sync from retry progress callback
- All videos now require manual play; no background resource usage

* fix: improve upscaled video quality with higher bitrate and codec support

- Raise base bitrate from 2.5 Mbps (25e5) to 8 Mbps (8e6) for standard and
  firefox processors, preventing quality loss when source videos have high
  bitrates (e.g. 720p @ 16.7 Mbps was producing 1440p @ 10 Mbps, smaller
  than the original file)
- Double the bitrate for mediabunny processor (X.n1 * 2) to account for the
  4x pixel increase from 2x upscaling
- Add H.264 Level 5.1 (avc1.640033) and Level 5.2 (avc1.640034) codecs to
  the fallback lists, since Level 4.0 (avc1.640028, ~24.6 Mbps) cannot
  support the higher bitrates for 1440p+ outputs
- Add latencyMode: "quality" to VideoEncoder configs for both standard and
  firefox processors, prioritizing encoding quality over latency (suitable
  for offline processing)

* feat: add video data comparison panel for original vs upscaled metrics

- Add a comparison data table below the file info bar showing 6 metrics:
  Resolution, File Size, Duration, Est. Bitrate, Pixels, Process Time
- Display per-metric change percentage with color-coded indicators:
  green (↑) for improvements, red (↓) for regressions, gray for neutral
- Estimated bitrate calculated from file size × 8 / video duration
- Table renders after both original and upscaled video metadata loads
- Auto-hide panel on reset

* fix: make video data comparison panel full-width and responsive

- Move comparison data table from inside the left column to the full-width
  area below the left/right layout, so it is no longer constrained by the
  comparison viewer column width
- Remove table-fixed colgroup and overflow-x-auto that caused horizontal
  scrolling on smaller screens
- Table now uses w-full auto-layout, displaying all 4 columns (Metric,
  Original, Upscaled, Change) without requiring horizontal scrolling

---------

Co-authored-by: rionzhao <rionzhao@tencent.com>
2026-09-10 17:19:38 +08:00

114 lines
2.7 KiB
JavaScript

// npm i artplayer-plugin-multiple-subtitles
// import artplayerPluginMultipleSubtitles from 'artplayer-plugin-multiple-subtitles';
var art = new Artplayer({
container: '.artplayer-app',
url: '/assets/sample/video.mp4',
setting: true,
plugins: [
artplayerPluginMultipleSubtitles({
subtitles: [
{
name: 'chinese',
url: '/assets/sample/subtitle.cn.srt',
},
{
name: 'japanese',
url: '/assets/sample/subtitle.jp.srt',
},
],
}),
],
settings: [
{
width: 200,
html: 'Subtitle',
tooltip: 'Double',
icon: '<img width="22" height="22" src="/assets/img/subtitle.svg">',
selector: [
{
html: 'Display',
tooltip: 'Show',
switch: true,
onSwitch(item) {
item.tooltip = item.switch ? 'Hide' : 'Show'
// 显示/隐藏字幕
// Show/hide subtitles
art.subtitle.show = !item.switch
return !item.switch
},
},
{
html: 'Reverse',
tooltip: 'Off',
switch: false,
onSwitch(item) {
item.tooltip = item.switch ? 'Off' : 'On'
// 修改字幕顺序
// Change the order of subtitles
if (item.switch) {
art.plugins.multipleSubtitles.tracks(['chinese', 'japanese'])
}
else {
art.plugins.multipleSubtitles.tracks(['japanese', 'chinese'])
}
return !item.switch
},
},
{
default: true,
html: 'Double',
name: 'double',
},
{
html: 'Chinese',
name: 'chinese',
},
{
html: 'Japanese',
name: 'japanese',
},
],
onSelect(item) {
if (item.name === 'double') {
// 重置字幕
// Reset subtitles
art.plugins.multipleSubtitles.reset()
}
else {
// 显示单个字幕
// Show single subtitle
art.plugins.multipleSubtitles.tracks([item.name])
}
return item.html
},
},
],
})
// 自定义你自己的样式,请勿复制以下代码
// Customize your own style, please do not copy the following code
const style = `
.art-subtitle-chinese {
color: red;
font-size: 18px;
}
.art-subtitle-japanese {
color: yellow;
font-size: 12px;
}
`
const $style = document.getElementById('artplayer-subtitle-style')
if ($style) {
$style.textContent = style
}
else {
const $style = document.createElement('style')
$style.id = 'artplayer-subtitle-style'
$style.textContent = style
document.head.appendChild($style)
}