Safely Unmounting Unresponsive iOS Simulator Disk Images on macOS
Issue Description After use in Xcode, the iOS simulator on macOS occasionally leaves behind mounted disk images that become unresponsive and cannot be unmounted through standard methods. This can lead to cluttered disk space and potential conflicts with future simulator sessions.
Screenshots of the issue: In the example above, it was observed that certain simulator disk images, such as disk5s1 and disk7s1, remained mounted but unresponsive. When attempting to unmount these volumes using Disk Utility, it always prompted saying the volume was in use, even after quitting Xcode and all related processes (the CoreSimulator related processes always reappeared after being killed).
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Apple-Compliant MP4 Encapsulation with Chapter Markers and Subtitles via FFmpeg
Objective Encode and mux assets for video files ensuring compatibility with iOS 26+ and macOS 26+ (Tahoe).
This includes:
Embedding subtitles in Apple’s tx3g format. Incorporating chapter markers with both text labels and thumbnail images. 1. Chapter Metadata Specification To ensure chapters are recognized, the metadata file must follow the FFMETADATA header format with timestamps in nanoseconds (or based on timebase).
;FFMETADATA1 major_brand=isom minor_version=512 compatible_brands=isomdby1iso2mp41 encoder=Lavf62.3.100 [CHAPTER] TIMEBASE=1/1000 START=0 END=150483 title=01.
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Resolving Unresponsive Sony Unsubscribe Page via API Bypass
Issue Description The Sony unsubscription page, hosted on the Tencent Cloud SES (Simple Email Service) infrastructure, failed to load or function correctly. The webpage remained stuck on a blank screen.
URL: https://sescache.intl.tencent-cloud.com/prod_html/Unsubscribe3.html?region=hk&language=1&upn=[USER_TOKEN]
Screenshot of the issue: Analysis Upon inspecting the HTML source code provided, the following architectural issues and logic were identified:
External Dependencies: The page relies on external assets from cdn.bootcdn.net (jQuery, jquery-confirm, Bootstrap)
Region-Based Routing: The script uses a domain mapping object to route requests based on the region parameter in the URL.
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