$ show WyattBlue/auto-editor
Auto-editor is a command-line application for automatically editing video and audio content. It analyzes media files to detect silent or still sections (based on audio loudness, motion, black frames, or subtitles) and automatically cuts them out, producing a more concise output. The tool supports a wide range of input and output formats, leveraging FFmpeg for media processing and offering export options tailored to popular video editing software like Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve, Shotcut, and Kdenlive. The architecture is modular, with distinct modules for analysis (audio, motion, black detection, subtitle processing), rendering, export format handling, and command-line interface. Key features include a plugin-like system for edit methods (e.g., audio-based, motion-based), a caching mechanism to avoid redundant analysis, support for keyboard input via microphone, and integration with Whisper.cpp for speech transcription. The project also provides a web interface and supports advanced features like transitions, speed ramping, volume ducking, and keyframe-based effects. The codebase demonstrates strong engineering practices through its use of a custom expression language for defining edit decisions, SIMD-optimized performance critical paths, and a clear separation between media processing logic and user-facing functionality. Despite its complexity and reliance on external multimedia libraries, the project maintains active development with regular updates and cross-platform support.
The LLM identified 3 files worth highlighting for reuse:
Implements a transparent caching mechanism for expensive media analysis results (audio levels, motion data, etc.). Avoids redundant computation by storing analysis outputs to disk, keyed by input file metadata and analysis parameters. This pattern is reusable in any application requiring expensive, deterministic computations.
A self-contained progress bar utility for command-line applications. Provides customizable text-based progress indicators with support for different styles and terminal width adaptation. Zero dependencies outside of the util module, making it trivial to integrate into other Nim CLI tools.
Implements exact rational number arithmetic to avoid floating-point inaccuracies in critical calculations (such as timeline positioning and edit decisions). Encapsulates numerator and denominator with automatic reduction and overflow-safe operations. This mathematical utility is broadly applicable in any domain requiring precise fractional arithmetic.