* 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>
ArtPlayer.js
🎨 ArtPlayer.js is a modern and full featured HTML5 video player
・ Online Editor ・ API Document ・ Danmuku ・ Changelog ・ 🤖LLMs ・
Home Page
Mobile Demo
Features
ArtPlayer.js is an easy-to-use and feature-rich HTML5 video player, and most of the player's functional controls support customization, which makes it easy to connect with your business logic. In addition, it directly supports .vtt, .ass and .srt subtitle formats. Integration with other dependencies such as flv.js, hls.js, dash.js, etc. is also very simple. The code is highly decoupled, the structure and logic are clear, and it is easy to track errors and add new features.
Install
Install with npm:
$ npm install artplayer
Or install with yarn:
$ yarn add artplayer
Or install with pnpm:
$ pnpm add artplayer
Or install with bun:
$ bun add artplayer
import Artplayer from 'artplayer'
Or umd build also available:
<script src="path/to/artplayer.js"></script>
Or from CDN:
<!-- jsdelivr -->
<script src="https://cdn.jsdelivr.net/npm/artplayer/dist/artplayer.js"></script>
<!-- unpkg -->
<script src="https://unpkg.com/artplayer/dist/artplayer.js"></script>
Will expose the global variable to window.Artplayer.
Usage
<div class="artplayer-app"></div>
let art = new Artplayer({
container: '.artplayer-app',
url: 'path/to/video.mp4',
})
Plugins
| Name | Describe | State |
|---|---|---|
| artplayer-plugin-danmuku | Danmuku (bullet comment) system | |
| artplayer-plugin-hls-control | HLS quality control | |
| artplayer-plugin-dash-control | DASH quality control | |
| artplayer-plugin-vtt-thumbnail | VTT thumbnail preview | |
| artplayer-plugin-multiple-subtitles | Multiple subtitles support | |
| artplayer-plugin-chromecast | Google Chromecast support | |
| artplayer-plugin-vast | VAST/VPAID advertising | |
| artplayer-plugin-chapter | Video chapters support | |
| artplayer-plugin-auto-thumbnail | Auto-generated thumbnails | |
| artplayer-plugin-ambilight | Ambilight effect | |
| artplayer-plugin-document-pip | Document Picture-in-Picture | |
| artplayer-plugin-audio-track | Independent audio track playback | |
| artplayer-plugin-jassub | ASS/SSA subtitle support | |
| artplayer-plugin-danmuku-mask | Danmuku masking (smart blocking) | |
| artplayer-plugin-asr | Automatic Speech Recognition | |
| artplayer-plugin-ads | Video advertising plugin | WIP |
Libraries
| Name | Describe | State |
|---|---|---|
| hls.js | HLS client | |
| dash.js | MPEG DASH player | |
| flv.js | HTML5 FLV Player | |
| mpegts.js | MPEG-TS/FLV Player | |
| webtorrent.js | Streaming torrent client |
Proxys
| Name | Describe | State |
|---|---|---|
| Canvas | Proxy video to canvas | |
| Mediabunny | Mediabunny proxy |
Changelog
Contributing
Donations
We accept donations through these channels:
QQ Group
License
MIT © Harvey Zhao


