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This article provides a comprehensive guide on developing a Python tool to convert English videos into versions with Chinese dubbing and subtitles, covering all steps from audio extraction to final synthesis.
Senior Tencent Cloud Video engineer explains that short‑video editing requires decoding compressed MP4/MOV files into frames, applying synchronized audio and visual effects, preprocessing for frame‑by‑frame access to avoid drag‑stutter, generating previews, and re‑encoding, illustrated with a radiating zoom effect example.
Alibaba's security team leveraged deep‑learning‑based porn detection and sensitive‑face recognition together with a highly optimized multimedia processing cluster to automatically filter and control risky live‑stream content for thousands of concurrent streams during the Double 11 shopping festival, dramatically reducing manual review effort while maintaining high accuracy.