This code is a **Tampermonkey UserScript** meant to run on...
This code is a Tampermonkey UserScript meant to run on the kaa.to
website (or its subdomains). It serves as a tool to optimize media playback by dynamically managing and stabilizing video or audio playback rates in real-time. Here's a breakdown of what the script does:
1. Purpose of the Script
The script is built to provide "Quantum stabilization" of media playback acceleration. It dynamically adjusts the playback speed of videos (or audio files) on the kaa.to
platform, aiming to:
- Maintain smooth playback.
- Avoid stalls or interruptions caused by insufficient buffering.
- Stabilize playback acceleration through different "tiers" (multipliers ranging from
6x
to14x
).
2. Components of the Code
Acceleration Tiers (ACCELERATION_TIERS
)
- The script defines five acceleration tiers with increasing playback rates (
6x
,8x
,10x
,12x
, and14x
). - Each tier has attributes like:
- Threshold: How many seconds of buffered data are required to allow playback at that acceleration.
- BaseCooldown: A minimum cooldown period between transitions (2.75 seconds).
- StabilityFactor and DecayRate: Factors that influence how stable the acceleration is after successful or failed transitions.
Quantum State Controller
- Manages the playback-related stability information for each acceleration tier.
- Calculates cooldowns and updates the playback stability index after each success or failure in maintaining smooth playback.
Quantum Buffer Engine
- This is the main processing engine that applies the quantum stabilization mechanism.
- It:
- Monitors the video/audio's buffered data (checking how many seconds of media are preloaded and available for playback).
- Dynamically chooses the best acceleration tier that the current buffer can support.
- Transitions between acceleration tiers, ensuring the rotation respects cooldowns and stability.
Playback Analysis
- Continuously monitors:
- Buffer health: How much video/audio is buffered (in seconds).
- Network throughput: This is less defined but could refer to the speed of loading media data.
- Stability index: Measures how well the system is handling the current playback acceleration rate.
Quantum Transition Logic
- The script carefully transitions playback rates (e.g., from
6x
to8x
) only when:- There is enough buffered media to sustain the target acceleration.
- The required cooldown period since the last acceleration change has passed.
If acceleration fails (due to insufficient buffering, etc.), the script automatically downshifts to a lower tier.
3. Execution Flow
Initialization
- When the script loads, it looks for video or audio elements on the
kaa.to
website using specified selectors ('video', '.kaa-player video'
, etc.). - It attaches event listeners (
progress
,timeupdate
,playing
) to media elements for continuous monitoring and optimization of playback rates. - Ensures that any new media elements added dynamically to the DOM (e.g., lazy-loaded videos) are also incorporated into the stabilization system via a
MutationObserver
.
Real-Time Adjustment
- As the media plays, the
QuantumBufferEngine
continually analyzes buffer conditions, playback stability, and network performance. - It adjusts playback rates dynamically to the optimal tier for smooth playback without stalling or buffering issues.
4. Key Functionalities
- Dynamic Playback Speed Adjustment: Boosts playback speed to
6x
,8x
,10x
,12x
, or14x
based on the buffer's health. - Playback Stabilization: Uses cooldown matrices and stability factors/decay rates to maintain or reduce playback instability when transitioning between playback tiers.
- Automated Monitoring: Continuously scans the page for media elements, ensuring all relevant media is optimized.
- Failsafe Mechanism: Detects failed or unstable accelerations and automatically falls back to a slower tier to prevent playback interruptions.
5. Use Case
This script is useful for users who want to:
- Increase media playback speed (e.g., fast-forwarding through content) on
kaa.to
while maintaining a smooth experience. - Prevent stalls or lags during high-speed playback by balancing buffer usage and acceleration rates.
6. Technical Observations
- Dependencies: The script uses jQuery (
@require https://code.jquery.com/jquery-3.6.0.min.js
) for DOM manipulation. - Event Management: Listens to media events (
progress
,timeupdate
, etc.) to trigger optimization logic in real-time. - Mutation Observer: Dynamically maintains stabilization for media elements added to the DOM after the page has loaded.
- Failsafes: Implements logic to avoid playback instability by continually analyzing conditions and rolling back to a safer playback rate when necessary.
In summary, this script is a highly sophisticated tool designed to ensure quantum-stable, high-speed media playback on kaa.to
while intelligently adapting to network and buffer constraints in real-time.