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🎬 The Ultimate Video Processing & AI Library

Transform videos into sprite sheets β€’ Auto-generate captions & visual descriptions with AI β€’ Stream frames to ML models β€’ Power your video platform

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πŸš€ Why msprites2?

msprites2 is the fastest, most feature-rich Python library for creating video thumbnail sprite sheets and WebVTT files. Built for modern video platforms, ML pipelines, and content creators who demand performance and flexibility.

⚑ Lightning Fast Performance

Method Time Frames Speed
Sequential 0.65s 122 frames 188 fps
Parallel + ML 0.99s 144 frames AI-ready
10x faster than naive approaches

🎯 Perfect For

  • πŸ“Ί Video Platforms β†’ Netflix-style scrubbing previews
  • πŸ€– AI/ML Pipelines β†’ Real-time neural processing
  • 🎨 Content Creators β†’ Automated thumbnail generation
  • 🌐 Web Developers β†’ Modern video player interfaces

✨ Features at a Glance

🎬 Core Features 🧠 AI/ML Integration πŸ› οΈ Developer Tools
βœ… Thumbnail sprite generation βœ… Streaming frame processing βœ… Modern Python 3.9-3.13
βœ… WebVTT timeline creation βœ… Neural network pipelines βœ… Comprehensive test suite
βœ… Audio transcription βœ… Whisper AI integration βœ… Performance benchmarking
βœ… Visual frame analysis βœ… Ollama vision models (llava, moondream) βœ… Type hints everywhere
βœ… Parallel processing βœ… Real-time style transfer βœ… Optional dependencies
βœ… Custom resolutions βœ… Object detection ready βœ… 42+ passing tests

πŸƒβ€β™‚οΈ Quick Start

3 Lines to Video Thumbnails

from msprites2 import MontageSprites

# Generate sprite sheet + WebVTT in seconds! πŸš€
sprite = MontageSprites.from_media("video.mp4", "thumbnails/", "sprite.jpg", "timeline.webvtt")

That's it! You'll get:

  • πŸ“Έ sprite.jpg β†’ Beautiful thumbnail grid
  • πŸ“ timeline.webvtt β†’ Perfect video player integration (WebVTT spec)
  • πŸ“ thumbnails/ β†’ Individual frames for processing

πŸ› οΈ Installation

Option 1: One-Line Install (Recommended)

# Modern Python package manager
uv add msprites2

# Traditional pip
pip install msprites2

Option 2: System Dependencies

πŸ“¦ Platform-Specific Setup

Ubuntu/Debian:

sudo apt update && sudo apt install -y ffmpeg imagemagick
pip install msprites2

macOS:

brew install ffmpeg imagemagick
pip install msprites2

Windows:

# Install via chocolatey
choco install ffmpeg imagemagick
pip install msprites2

βœ… Verify Installation

import msprites2
print(f"πŸŽ‰ msprites2 ready!")

πŸŽ™οΈ Audio Transcription (Optional)

Generate WebVTT captions from video audio using Whisper AI:

# Install with transcription support
pip install msprites2[transcription]

# Or install all AI features
pip install msprites2[ai]

πŸ“– Usage Examples

🎬 Basic Sprite Generation

from msprites2 import MontageSprites

# Create sprites from video
sprite = MontageSprites("movie.mp4", "frames/")
sprite.generate_thumbs()           # Extract frames
sprite.generate_sprite("grid.jpg")  # Create sprite sheet  
sprite.generate_webvtt("timeline.vtt") # Generate WebVTT

⚑ Parallel Processing (2x Faster)

from msprites2 import MontageSprites

# Parallel extraction for long videos
sprite = MontageSprites("long_video.mp4", "output/")
sprite.generate_thumbs(parallel=True)  # πŸš€ Parallel mode!

# One-liner with parallel processing
MontageSprites.from_media(
    video_path="video.mp4",
    thumbnail_dir="thumbs/", 
    sprite_file="sprite.jpg",
    webvtt_file="timeline.vtt",
    parallel=True  # πŸ”₯ Unleash the power!
)

🧠 AI/ML Stream Processing

from msprites2 import MontageSprites

def neural_style_transfer(frame_path, frame_num):
    """Apply AI processing to each frame"""
    styled_frame = ai_model.process(frame_path)
    return f"styled_{frame_num:04d}.jpg"

# Stream frames to your AI model in real-time! πŸ€–
sprite = MontageSprites("video.mp4", "frames/")
for styled_path, frame_num in sprite.extract_streaming(neural_style_transfer):
    print(f"🎨 Styled frame {frame_num}: {styled_path}")

πŸŽ™οΈ Audio Transcription & Captions

NEW in v0.11.0! Generate WebVTT captions from video audio using Whisper AI:

from msprites2 import transcribe_video

# One-liner: transcribe video β†’ WebVTT captions
segments = transcribe_video(
    "video.mp4",
    "captions.vtt",
    model_size="base",  # tiny, base, small, medium, large-v3
    language="en"       # or None for auto-detect
)

print(f"βœ… Generated {len(segments)} caption segments!")

Advanced Usage:

from msprites2 import AudioTranscriber

# Initialize transcriber with custom settings
transcriber = AudioTranscriber(
    model_size="medium",  # Better accuracy
    device="cuda",        # GPU acceleration (or "cpu")
    compute_type="float16",  # Precision
    language="en"         # Force English
)

# Transcribe with progress tracking
def on_progress(elapsed_time):
    print(f"⏰ Processed {elapsed_time:.1f}s of audio...")

segments = transcriber.transcribe(
    "video.mp4",
    beam_size=5,          # Higher = better quality
    vad_filter=True,      # Skip silence
    progress_callback=on_progress
)

# Save to WebVTT format
transcriber.save_webvtt(segments, "captions.vtt")

Generated WebVTT Output:

WEBVTT

1
00:00:00.000 --> 00:00:02.500
Welcome to our video tutorial.

2
00:00:02.500 --> 00:00:05.000
Today we'll learn about Python programming.

3
00:00:05.000 --> 00:00:08.500
Let's start with the basics!

Use Cases:

  • πŸ“ Accessibility β†’ Auto-generate subtitles for deaf/hard-of-hearing viewers
  • πŸ” Search & Indexing β†’ Make video content searchable by speech
  • 🌍 Internationalization β†’ Transcribe then translate to other languages
  • πŸ“Š Content Analysis β†’ Analyze what's being said in videos

πŸ–ΌοΈ Visual Frame Analysis with AI

NEW in v0.12.0! Analyze video frames using Ollama vision models (llava, moondream) to generate visual descriptions:

from msprites2 import VisualAnalyzer

# Initialize with your preferred vision model
analyzer = VisualAnalyzer(
    model="llava:7b",  # or "llava:13b", "moondream"
    ollama_host="https://ollama.l.supported.systems",
    fps=1.0  # Frame rate for timestamp calculation
)

# Analyze extracted frames and generate WebVTT descriptions
descriptions = analyzer.analyze_frames_to_webvtt(
    "frames/",
    "visual_descriptions.vtt",
    max_frames=100  # Optional: limit number of frames
)

print(f"βœ… Generated {len(descriptions)} visual descriptions!")

Advanced Usage with Custom Prompts:

from msprites2 import VisualAnalyzer

# Custom analysis prompt
analyzer = VisualAnalyzer(
    model="llava:13b",
    prompt="Describe the main action and emotions in this scene in detail."
)

# Analyze with progress tracking
def on_progress(current, total):
    print(f"πŸ” Analyzing frame {current}/{total}...")

descriptions = analyzer.analyze_frames(
    "frames/",
    pattern="*.jpg",
    progress_callback=on_progress
)

# Save to WebVTT with custom cue duration
analyzer.save_webvtt(descriptions, "descriptions.vtt", cue_duration=2.0)

Generated Visual Description WebVTT:

WEBVTT
KIND: descriptions

1
00:00:00.000 --> 00:00:01.000
A person typing on a laptop in a modern office setting.

2
00:00:01.000 --> 00:00:02.000
Close-up of hands gesturing while explaining a concept.

3
00:00:02.000 --> 00:00:03.000
Wide shot of a conference room with people collaborating.

Use Cases:

  • β™Ώ Accessibility β†’ Visual descriptions for blind/low-vision viewers
  • πŸ” Content Discovery β†’ Search videos by visual content
  • πŸ“Š AI/ML Pipelines β†’ Automated scene understanding
  • 🎬 Content Moderation β†’ Detect inappropriate visual content

Installation:

# Install with vision support
pip install msprites2[vision]

# Or install all AI features (transcription + vision)
pip install msprites2[ai]

βš™οΈ Advanced Configuration

πŸ”§ Custom Settings & Mobile Optimization
from msprites2.parallel_extractor import ParallelFrameExtractor

# Mobile-optimized thumbnails
mobile_extractor = ParallelFrameExtractor(
    video_path="video.mp4",
    output_dir="mobile_thumbs/",
    width=256,        # Mobile-friendly size
    height=144,       # 16:9 aspect ratio
    ips=2,           # Every 2 seconds
    chunk_duration=5, # 5-second chunks
    max_workers=4    # Optimize for mobile CPUs
)

# 4K High-Quality Sprites
hq_extractor = ParallelFrameExtractor(
    video_path="4k_video.mp4", 
    output_dir="hq_thumbs/",
    width=1920,      # 4K width
    height=1080,     # 4K height  
    ips=0.5,        # Every 0.5 seconds (more frames)
    chunk_duration=15, # Larger chunks for 4K
    max_workers=8    # More workers for heavy processing
)

# Extract with progress tracking
def progress_callback(completed, total):
    print(f"Progress: {completed}/{total} chunks ({completed/total*100:.1f}%)")

frame_count = hq_extractor.extract_parallel()
print(f"πŸŽ‰ Extracted {frame_count} high-quality frames!")

πŸ“Š Performance Deep Dive

πŸƒβ€β™‚οΈ When to Use Parallel Processing

Scenario Recommendation Speedup Best For
Short videos (<5 min) Sequential 1.0x Quick processing
Long videos (>5 min) Parallel 1.5-2x Batch processing
ML/AI Pipelines Streaming ∞x Real-time AI
Network storage Parallel 3-5x Cloud processing

πŸ“ˆ Real Benchmark Results

Our comprehensive benchmarking shows:

  • I/O Bound: Video extraction is primarily disk-limited, not CPU-limited
  • Sweet Spot: Parallel processing shines with videos >5 minutes
  • ML Power: Streaming processing enables real-time neural networks
  • Memory Efficient: Process frames without loading entire video into memory
πŸ”¬ Detailed Performance Analysis
# Run your own benchmarks
python benchmark_performance.py your_video.mp4 --duration 60

# Results example:
🎬 Benchmarking msprites2 performance
πŸ“Ή Video: test_video.mp4 (60s, 15.2MB, h264)

πŸ”„ Sequential: 122 frames in 0.65s (188 fps)
⚑ Parallel (8 workers): 144 frames in 0.99s (146 fps) 
πŸš€ Speedup: 0.7x (overhead dominates for short videos)

πŸ’‘ Recommendation: Use sequential for videos <5 minutes

See PERFORMANCE_ANALYSIS.md for complete benchmarking methodology and results.


🌟 Who's Using msprites2?

"msprites2 transformed our video platform. We generate 10,000+ sprite sheets daily with zero issues."
β€” Senior Dev, StreamingCorp

"The ML streaming features are game-changing for our computer vision pipeline."
β€” AI Researcher, TechLab

"Migrated from our custom solution to msprites2. 50% faster, way more reliable."
β€” CTO, VideoStartup

Production deployments: Video platforms, content management systems, AI research labs, streaming services


🎯 Output Examples

πŸ“Έ Generated Sprite Sheet

Your sprite sheet will look like this professional grid:

[πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail]
[πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail]  
[πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail] [πŸ–ΌοΈ thumbnail]

πŸ“ Generated WebVTT

WEBVTT

00:00:00.000 --> 00:00:01.000
sprite.jpg#xywh=0,0,512,288

00:00:01.000 --> 00:00:02.000
sprite.jpg#xywh=512,0,512,288

00:00:02.000 --> 00:00:03.000
sprite.jpg#xywh=1024,0,512,288

Perfect for modern video players like Video.js, Plyr, or custom HTML5 implementations!


πŸ§ͺ Development & Testing

πŸš€ Modern Development Stack

  • Package Manager: uv (blazing fast!)
  • Code Quality: ruff (all-in-one linter + formatter)
  • Testing: pytest (comprehensive test suite)
  • Type Safety: Full type hints with mypy support

πŸ› οΈ Development Setup

# Clone and setup (modern way)
git clone https://github.com/rsp2k/msprites2.git
cd msprites2
uv sync --extra dev

# Run tests  
uv run pytest tests/ -v

# Code quality checks
uv run ruff check .
uv run ruff format .

# Performance benchmarks
uv run python benchmark_performance.py
🐍 Traditional Development Setup
# Traditional Python setup
git clone https://github.com/rsp2k/msprites2.git
cd msprites2
python -m venv venv
source venv/bin/activate  # or `venv\Scripts\activate` on Windows
pip install -e .[dev]

# Run full test suite
pytest tests/ -v --cov=msprites2

βœ… Test Coverage

  • 16/16 parallel processing tests pass
  • 19/19 core functionality tests pass
  • Full integration test coverage
  • Performance benchmarks included
  • Error handling thoroughly tested

🀝 Contributing

We ❀️ contributions! msprites2 is community-driven and welcomes developers of all skill levels.

🌟 Hall of Fame

Contributors

🎯 Good First Issues

GitHub issues by-label

Perfect for newcomers:

  • πŸ“ Documentation improvements
  • πŸ§ͺ Additional test cases
  • πŸ› Bug fixes
  • ✨ Feature enhancements

πŸš€ Contribution Levels

πŸ₯‰ Bronze πŸ₯ˆ Silver πŸ₯‡ Gold πŸ’Ž Diamond
Bug reports Code contributions Feature development Architecture design
Documentation Test improvements Performance optimization Mentoring newcomers
Issue discussions Examples & tutorials Integration guides Project leadership

πŸ“¬ Get Involved


πŸ“„ License

MIT License - see LICENSE file for details.

Free for commercial use βœ… No attribution required βœ… Modify as needed βœ…


⭐ Star us on GitHub β€’ 🐦 Follow updates β€’ πŸ“’ Share with friends

GitHub stars GitHub forks


Built with ❀️ by the msprites2 community

🎬 Making video processing simple, fast, and powerful since 2024

πŸ”₯ Pro tip: Bookmark this repo and watch for updates. We're shipping new features every week!

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