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Browser-Based Tool Uses Rolling Buffers to Auto-Capture Android Crashes and Logs

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A new browser-based debugging approach addresses the common frustration of missing logs and screen recordings when intermittent Android crashes occur unexpectedly. The system uses two continuous in-browser streams — a rolling video ring buffer and a filtered logcat stream — each maintaining a sliding window of roughly 120 to 180 seconds of recent data. Built with the WebCodecs API and WebUSB transport, the video buffer stores one-second GOP chunks while the log buffer filters output by target package and watches for crash signatures like ANR and FATAL EXCEPTION. When a crash is detected, the system automatically slices and aligns both the video clip and log output to the moment of failure. The result is a compact, timestamp-aligned MP4 and log excerpt delivered to engineers instead of unwieldy multi-gigabyte files.

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Browser-Based Tool Uses Rolling Buffers to Auto-Capture Android Crashes and Logs · ShortSingh