ffmpeg-video-editor

**Quick judgment:** This skill is a strong, focused FFmpeg command generator for everyday video-editing and conversion tasks. It’s well-structured and practical for users who want correct commands without memorizing FFmpeg syntax. **Strengths** - Broad coverage of essential tasks: trimming, format conversion, aspect-ratio/resize, compression, audio extract/remove, speed change, GIF, rotation/flip, screenshots, watermarking, burning subtitles, and concatenation. - Opinionated but reasonable defaults (codecs, CRF values, common resolutions/ratios) appropriate for typical creator and developer workflows. - Commands are generally efficient and production-ready (use of `-y`, `-hide_banner`, copy where possible, mainstream codecs). **Risks / Limitations** - **No file-awareness:** It can’t inspect actual media; if the user’s file paths, codecs, or subtitles contain special characters or differ from assumptions, commands may fail. - **Overwrite behavior:** Forced `-y` means existing output files are overwritten without confirmation—safe for automated pipelines but risky for casual users who might lose prior outputs. - **Edge-case coverage:** Advanced FFmpeg use cases (complex filter graphs, multiple audio tracks, stream selection, hardware acceleration, extreme speed changes requiring chained `atempo`) are not covered and may require manual adjustment. - **Platform/build differences:** Some suggested codecs/filters (e.g., libx264, libvpx-vp9, libopus, subtitles filter) may be missing in minimal or unusual FFmpeg builds, causing command errors. **Recommended scenarios** - Best suited for **chatbots, dev tools, and helper scripts** that need to turn natural-language video-editing requests into concrete FFmpeg commands for common operations. - Ideal when you want **speed and convenience over fine-grained control**, and when overwriting outputs (`-y`) is acceptable (e.g., ephemeral or versioned work directories). - Less suited for highly customized, professional post-production pipelines that rely on nuanced codec, color, and filter-chain tuning or strict non-overwrite policies.