VSNX v2.4 PRO

Next-Gen Anti-Piracy Video DRM
VSNX SDK v2.4 PRO • DEVELOPER DOCUMENTATION

Developer Documentation & SDK Integration Guide

Comprehensive technical reference from binary container packaging (CLI/GUI) to zero-DOM client Web Player embedding and secure backend token authentication.

Part 01

VSNX Container Overview & Architecture

VSNX (Video Stream Native eXclusive) is a proprietary encrypted binary container engineered to permanently eradicate web video piracy, unauthorized scraping, and illegal redistribution across LMS and educational platforms.

Binary Multiplex Structure

Bypasses standard MP4 atom boxes and TS segments. Features cryptographically signed headers with segregated audio/video chunks.

AES-256 CTR/GCM Ciphers

Every individual frame block is encrypted using unique dynamic initialization vectors (IV), preventing replay and bit-flipping attacks.

Canvas GPU Blitting

Zero DOM <video> tags and zero exposed blob URLs. Frames are decoded within volatile RAM and painted directly to GPU Canvas.

Part 02

VSNX CLI Converter (vsnx2_converter.exe)

The standalone native binary vsnx2_converter.exe (C++ Native, OpenMP bounded multi-threading) handles automated encoding, binary encryption, and restoration workflows in CI/CD pipelines, Windows Server, and Linux worker environments.

Production Terminal Syntax:

terminal — vsnx2_converter.exe
# 1. Standard Web packaging (Zero-Leak Container, Fast-Start for instant HTTP byte-range streaming): $ vsnx2_converter.exe encode lesson.mp4 lesson.vsnx --vfr --fast-start # 2. AES-256 CTR cipher + Anti-recording Gabor Micro-Texture + Adaptive CCLC compression: $ vsnx2_converter.exe encode lesson.mp4 lesson.vsnx --password "MySecretKey2026" --vfr --gabor --cclc # 3. Secure encode with Steganographic Invisible Forensic Watermark (Tier 2) + Speech audio tuning: $ vsnx2_converter.exe encode lesson.mp4 lesson.vsnx --password "Key123" --watermark "StudentID:98234" --audio-preset voice --quality 85 # 4. Decrypt & restore .vsnx back to pristine MP4 video (Verification & Export): $ vsnx2_converter.exe decode lesson.vsnx restored.mp4 --password "MySecretKey2026"

Complete 13 Technical CLI Parameters Reference:

Parameter / Flag Type Technical Function & Description Default Value
encode <in> <out> Subcommand Packages and encrypts source media (MP4, MOV ProRes, MKV, FLV) into binary .vsnx. Required
decode <in> <out> Subcommand Decrypts and restores a .vsnx container back into standard MP4 (requires key if encrypted). Optional
--password <str> String Binary AES-256 CTR block cipher password. If omitted, file operates in Zero-Leak Public mode. None (Public)
--vfr Flag Enables adaptive Variable Frame Rate, reducing static slide lecture bandwidth by up to 60%. false
--gabor Flag Injects pseudo-random Gabor micro-texture noise to defeat screen recording encoders & compression. false
--fast-start Flag Places container header metadata at file start, enabling instantaneous playback over HTTP byte ranges. false
--cclc Flag Applies Color Curve & Luminance Compression for optimized visual contrast. false
--watermark <str> String Embeds invisible steganographic forensic watermark (Tier 2) into the DCT/pixel domain to trace leaks. None
--quality <1-100> Integer Quantizer compression rate (CRF). Range from 1 (maximum compression) to 100 (ProRes lossless). 80
--gop <frames> Integer Group of Pictures keyframe distance. Dictates sub-frame seeking latency across timelines. 30
--audio-preset <p> String Audio pipeline profile: standard (128k), voice (64k noise-gate), high (256k), lossless. standard
--audio-codec <c> String Target audio encoder codec: aac, opus, pcm. aac
--threads <n> Integer Concurrent CPU worker threads (OpenMP bounded with memory exhaustion prevention guards). 4
Part 03

Studio GUI Converter (gui_converter.exe)

Native Win32 C++ desktop application tailored for course instructors and video editors. Boots in 0.1s, consumes under 20MB RAM, and delivers granular encoding controls through an intuitive graphical interface without bloated Electron layers.

Advanced Win32 Parameter Controls:

  • • Quality Slider (1 - 100): Smooth real-time quantization control for high-fidelity exports.
  • • GOP Keyframe Spin-box: Custom keyframe intervals optimized for instant sub-second timeline seeking.
  • • Proprietary Technology Toggles: Dedicated checkboxes for VFR Mode, Gabor Noise, Fast-Start, and CCLC Optimization.
  • • Audio Presets & Forensic Watermark: Dropdown audio pipeline selection and Steganographic Invisible Watermark entry field.

Instant Validation via Desktop Player:

Features a 1-click "Open in Player" test button. Upon encode completion, the app immediately launches the native offline player vsnx2_player_gui.exe to verify encrypted playback, audio streams, and watermarks directly in volatile RAM before uploading to the cloud.

Download VSNX Studio Suite v2.4 (Windows x64)
Part 04

Embedding VSNX Web Player

The vsnx2-player.js library is a zero-dependency, standalone JavaScript SDK with zero third-party requirements.

Visual HTML Tags & Code Implementations:

HTML5 Tag (index.html)
Custom <vsnx-player> Tag
Iframe Tag (iframe.html)
React (CoursePlayer.tsx)
WordPress LMS (PHP)
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<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Course Video Lesson - VSNX Zero-Leak Stream</title> </head> <body style="background: #070b14; color: #fff; margin: 0; padding: 24px;"> <!-- 1. Target HTML container for 16:9 WebGL Canvas rendering --> <div id="my-video-player" style="width: 100%; max-width: 960px; aspect-ratio: 16/9; margin: 0 auto; border-radius: 12px; overflow: hidden;"></div> <!-- 2. Load proprietary VSNX client-side WebAssembly player SDK --> <script src="https://cdn.yourschool.com/vsnx/vsnx2-player.js"></script> <!-- 3. Initialize player with dynamic viewer watermark telemetry --> <script> const player = new VsnxPlayer({ container: '#my-video-player', src: 'https://r2.yourschool.com/courses/lesson_01.vsnx', autoplay: false, watermark: { text: 'student@enterprise.com • IP: 118.69.182.42', opacity: 0.35 } }); </script> </body> </html>
Zero <video> DOM Tag
100% Downloader & Scraper Proof
Part 05

2-Tier Watermark Security Architecture

VSNX delivers defense-in-depth through dual watermark security: Tier 1 (Visual Dynamic WebGL Canvas) for real-time visual deterrence on client browsers, and Tier 2 (Invisible Forensic Steganography) embedded into video DCT pixels for immutable leak provenance.

Tier 1: Dynamic Canvas Watermark

Client WebGL

Rendered directly within the WebGL Canvas GPU context in real time. Coordinates drift pseudo-randomly across the viewport every few seconds. Non-existent in the DOM tree, neutralizing 100% of DevTools manipulation and ad-blockers.

Attribution: Student Email, Phone, IP Address, Timestamp

Tier 2: Forensic Invisible Steganography

Native Pixel Core

Concealed watermark permanently embedded into the DCT frequency domain during encoding. Imperceptible to the human eye, yet resilient against off-angle smartphone screen recordings, aggressive re-encoding, and cropping.

Extractor: vsnx2_forensic_extract.exe

Tier 1 Watermark Configuration (Visual Dynamic WebGL):

watermark-config.js
const player = new VsnxPlayer({ container: '#player', src: 'lecture.vsnx', watermark: { // Attribution telemetry rendered on GPU Canvas: text: 'Student: Alex Johnson (ID: #88921) • IP: 118.69.182.42', // Interval to drift coordinates randomly across screen (ms) intervalMs: 6000, // Subtle opacity to prevent viewer distraction (0.1 - 1.0) opacity: 0.32, // Font styling & color for GPU shaders color: '#ffffff', fontSize: 14, fontFamily: 'Inter, sans-serif' } });

Tier 2 Forensic Extraction (vsnx2_forensic_extract.exe):

When a pirated or leaked video recording is discovered, run the native forensic extractor to recover concealed student attribution payloads:

forensic — vsnx2_forensic_extract.exe
# 1. Extract hidden watermark from leaked clip (even if re-compressed or recorded off-screen): $ vsnx2_forensic_extract.exe leak_capture.mp4 --output report.json # Extracted JSON Forensic Provenance: { "detected_payload": "StudentID:98234", "confidence": 0.9984, "embedded_timestamp": "2026-09-07T14:20:00Z", "tamper_resistance": "PASSED_ROBUST" }
Part 06

Backend Authentication API (Private Tokens)

For private video assets, the decryption key is never hardcoded. Instead, the player exchanges a short-lived, signed JWT session token with your backend auth endpoint via volatile RAM.

secure-session-auth.js
// 1. Frontend requests authenticated playback session token: const response = await fetch('/api/v1/video/playback-session', { headers: { 'Authorization': 'Bearer ' + userAuthToken } }); const session = await response.json(); // 2. Initialize player with volatile RAM key (Never saved to Cookies / LocalStorage): player.load(session.vsnx_url, session.decryption_key);
Volatile RAM Isolation: The decryption_key only exists within the active Web Worker execution context. The moment playback terminates or the browser tab closes, in-memory keys are purged instantly with zero trace in local storage or browser caches.
Part 07

JavaScript API Reference & Keyboard Shortcuts

Comprehensive developer documentation for the VSNX Web Player SDK v2.4. Complete programmatic control over memory-isolated Canvas video decoding, dynamic AES-256 CTR decryption key injection, sub-frame seeking, mini playlists, multi-track subtitles, lossless 1:1 PNG snapshots, and a full suite of keyboard shortcuts.

Constructor & Options Playback & Seek Audio Controls Rate & Flip Subtitles API Mini Playlist Credentials & RAM Snapshot & PiP Controls Config Lifecycle & GC Events & Callbacks Keyboard Shortcuts

7.1 Player Initialization (Constructor & Options)

Instantiate the player using new VsnxPlayer(options) with comprehensive configuration parameters controlling canvas rendering, encrypted binary streams, and security watermarks.

Option Type Default Description
container string | HTMLElement Required CSS Selector (e.g., "#vsnx-viewport") or DOM element hosting the Canvas Player.
src string Required Direct URL or relative path to the encrypted .vsnx binary container file.
credentials string "" AES-256 CTR decryption key or session token injected strictly into volatile RAM.
autoplay boolean false Starts playback immediately upon binary header validation (subject to browser autoplay policies).
loop boolean false Automatically rewinds and replays from frame 0 when the video reaches its final frame.
volume number 1.0 Initial Web Audio master volume level, normalized between 0.0 (muted) and 1.0 (max).
playbackRate number 1.0 Initial playback speed rate (supports continuous speed range from 0.25x to 3.0x).
watermark object null Dynamic anti-screen recording watermark: { text, dynamic, interval, opacity, fontSize }.
subtitles Array<Track> [] Initial subtitle tracks array: [{ id, label, lang, default, cues }].
playlist Array<Item> [] Course lesson items array: [{ title, src, credentials }].
controls object defaultConfig Custom visibility map for bottom toolbar action buttons and controls.
init_example.js 
const player = new VsnxPlayer({
    container: '#video-container',
    src: 'https://cdn.example.com/courses/lesson_01.vsnx',
    credentials: 'Aes256SecretDecryptionKey2026',
    autoplay: false,
    loop: false,
    volume: 0.85,
    playbackRate: 1.0,
    watermark: {
        text: 'STUDENT: John Doe • ID: 10892',
        dynamic: true,
        interval: 4000,
        opacity: 0.3
    }
});

7.2 Method Reference Suite (10 Core API Categories)

1. Playback & Seeking Controls

Method Parameters Returns Description
player.play() None Promise<void> Starts or resumes in-memory binary decoding and Canvas/Audio rendering.
player.pause() None void Pauses video frame decoding, suspends Web Audio context, and freezes current canvas.
player.togglePlay() None void Toggles between play and pause states.
player.seek(seconds) seconds: number void Executes sub-frame precision seek to exact timestamp with ultra-low latency (<8ms).
player.skip(offset) offset: number void Jumps relative forward or backward by seconds (e.g. +10, -10, +5, -5).

2. Audio Pipeline Controls

Method Parameters Returns Description
player.setVolume(level) level: number (0.0 - 1.0) void Sets linear master gain output on the Web Audio API context.
player.getVolume() None number Returns current volume level between 0.0 and 1.0.
player.toggleMute() None boolean Toggles audio mute state. Returns true if currently muted.

3. Playback Rate & Canvas Display

Method Parameters Returns Description
player.setPlaybackRate(rate) rate: number (0.25 - 3.0) void Adjusts continuous playback speed between 0.25x and 3.0x with active pitch preservation.
player.getPlaybackRate() None number Returns current playback speed multiplier (default: 1.0).
player.toggleFlip() None void Flips canvas video rendering horizontally (Mirror Flip), ideal for dance, fitness, and training courses.

4. Multi-Track Subtitles API

Method Parameters Returns Description
player.addSubtitleTrack(track) track: object void Dynamically registers a subtitle track: { id, label, lang, cues: [{ start, end, text }] }.
player.setSubtitleTrack(trackId) trackId: string void Activates a subtitle track by ID (e.g. 'en', 'vi') or pass 'none' to disable.
player.getSubtitleTracks() None Array<Track> Returns an array of all registered subtitle tracks.
player.getCurrentSubtitleTrack() None Track | null Returns the active subtitle track object rendered onto the canvas.
player.toggleSubtitles() None void Quick toggle for turning current subtitles on or off.

5. Mini Playlist API

Method Parameters Returns Description
player.setPlaylist(items) items: Array<Item> void Loads multi-video course playlist with distinct credentials: [{ title, src, credentials }].
player.next() None void Advances to the next video item in the active playlist.
player.prev() None void Returns to previous video item in the playlist.
player.playIndex(index) index: number void Plays specific lesson at zero-based index within the playlist.
player.togglePlaylist() None void Toggles the Mini Playlist sliding overlay drawer open or closed.

6. Security, Credentials & RAM Buffer

Method Parameters Returns Description
player.setCredentials(key) key: string void Injects AES-256 CTR decryption key directly into worker RAM to unlock protected streams.
player.load(src, credentials) src: string, key?: string Promise<void> Loads new .vsnx video stream and credentials without page reloads.
player.getLoadedProgress() None number (0.0 - 1.0) Returns current buffered binary chunk percentage in memory (ratio 0.0 to 1.0).
player.setLoadedProgress(pct) pct: number (0.0 - 1.0) void Updates UI buffer progress indicator when chunks arrive from Web Worker.

7. UI, Snapshot & PiP Utilities

Method Parameters Returns Description
player.takeSnapshot() None string (DataURL) Captures current Canvas frame as lossless 1:1 PNG file and triggers instant download.
player.togglePip() None Promise<void> Requests or exits native browser Picture-in-Picture window mode.
player.toggleFullscreen() None void Toggles full-screen display mode for the player container.
player.toggleLoop() None boolean Toggles infinite loop replay mode. Returns new loop state.
player.toggleStats() None void Toggles real-time HUD performance overlay (FPS, Dropped Frames, Bitrate, Memory).
player.setLanguage(lang) lang: 'en' | 'vi' void Switches toolbar UI and tooltip language localization.

8. Controls Toolbar Customization

Method Parameters Returns Description
player.setControlVisibility(name, show) name: string, show: boolean void Hides or shows specific control button ('play', 'volume', 'speed', 'subtitles', 'snapshot', 'pip', 'fullscreen', 'flip').
player.setControlsConfig(config) config: object void Batch updates the visibility configuration of all toolbar buttons.
player.getControlsConfig() None object Returns current toolbar button visibility settings map.
player.resetControlsConfig() None void Restores all toolbar controls to factory default visibility.

9. Lifecycle & Resource Deallocation

Method Parameters Returns Description
player.destroy() None void Terminates Web Workers, cleans WebGL/2D context, wipes AES keys from RAM, and removes all DOM event listeners.

7.3 Player Events & Callbacks

Listen to playback lifecycle events using player.on(eventName, callback) or define handlers directly inside constructor options.

Event Name Callback Parameters Trigger Condition
onReady None Fires when VSNX binary headers are parsed and first frame is ready to render.
onPlay None Fires when video stream starts or resumes playback.
onPause None Fires when playback is paused by user or programmatically.
onTimeUpdate (currentTime, duration) Fires on every rendered frame with current playback timestamp and total duration.
onProgress (bufferedRatio) Fires when binary chunk is buffered into memory (value between 0.0 and 1.0).
onEnded None Fires when video reaches the final frame (when loop is disabled).
onError (error: { code, message }) Fires when stream encounters decryption failure, invalid format magic, or network errors.

7.4 Exhaustive Keyboard Shortcuts Reference

VSNX Web Player incorporates standard international video keyboard controls, enabling rapid hotkey navigation for high-efficiency learning workflows:

Shortcut Key Action Description
Space or K Play / Pause Toggles video playback instantly with zero frame stutter.
← / → Seek ±5 seconds Seeks backward or forward by 5 seconds with sub-8ms latency.
J / L Seek ±10 seconds Quick-jump rewind 10s (J) or forward 10s (L).
↑ / ↓ Volume ±5% Increases or decreases audio output volume by 5% with HUD indicator.
M Mute / Unmute Toggles audio output mute status on and off.
F Fullscreen Toggles canvas container fullscreen view mode.
P Picture-in-Picture Toggles floating Picture-in-Picture overlay window.
S Capture Snapshot Instantly captures current canvas frame as a lossless 1:1 PNG image.
> / < Speed ±0.25x Increases or decreases playback speed (Shift + . or Shift + ,) across 0.25x - 3.0x.
D Toggle Subtitles Cycles through available subtitle tracks or turns them off.
I HUD Technical Stats Toggles overlay displaying real-time FPS, dropped frame count, and RAM cache.
0 – 9 Jump to % Duration Instantly jumps to position from 0% (beginning) to 90% of total video duration.
Home / End Beginning / End Seeks to frame 0 or jumps to the last frame of the video.
Right Click Anti-Theft Context Menu Suppresses browser inspection and video saving options; displays proprietary VSNX menu.
Part 08

Troubleshooting & FAQ

CORS Issue When Loading .vsnx from CDN?

Because the player requests binary byte ranges via fetch(), your CDN bucket (S3, R2) must allow: Access-Control-Allow-Origin: * and Access-Control-Allow-Headers: Range.

Audio Not Playing on iOS Safari Without User Interaction?

iOS Safari enforces strict autoplay restrictions on the Web Audio API. Audio playback resumes automatically upon the first viewer tap on the canvas play control.

How Does VSNX Handle Browser DevTools (F12) Opening?

The player monitors window dimensions and debugger breakpoints. When developer tools are opened, the canvas buffer instantly blurs or freezes with an alert overlay.