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Ffmpeg

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Open-source 'skill-video-studio' v1.0.1 lets Claude Code generate product demo videos

Developer aaitor released version 1.0.1 of skill-video-studio, a local toolkit that pairs the Claude Code assistant with Playwright, HyperFrames and FFmpeg to turn real product interactions into polished demo videos. The workflow starts with planning a silent walkthrough brief and beat plan, then moves to capture, composition and rendering, with optional narration, music, subtitles or presenter footage. Running the full pipeline requires Node.js 22+, FFmpeg/ffprobe, Chromium and additional Python dependencies for specific helpers.

Kalmuri offers free portable screen capture, recording and OCR for Windows

Kalmuri is a free, portable Windows utility that combines screenshots, screen recording, and OCR text extraction in one app. It supports full-screen or area capture in formats like PNG, JPG, BMP and GIF, plus MP4 video recording via an added FFmpeg component, along with color picking, hotkeys, floating image previews, and a built-in browser for capturing full webpages. It requires no installation, so it can run from a USB drive.

Streaming Learning Center tests show x264 tuning cuts H.264 bitrate 33%

A study using x264 and FFmpeg on 1080p clips found that tuning encoder settings—switching to the veryslow preset, extending GOP length to ten seconds, using two-pass encoding, adding reference frames, and applying a per-title encoding ladder—raised VMAF quality by 0.66 points while cutting bitrate from 4.9 Mbps to 3.27 Mbps. The tradeoff is that encoding time more than tripled compared to default settings.

Researchers use AI-assisted fuzzing tool to uncover division-by-zero bug in FFmpeg

A team built a fuzzer with heavy AI code-generation assistance ('vibecoding') and used it to discover a division-by-zero vulnerability in FFmpeg, the widely used open-source multimedia framework. The bug was found through automated input generation and crash analysis rather than manual code review.