Telegram Rejects iPhone Videos for Avatars; Bot Automates Conversion

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Telegram's video avatar feature silently rejects videos recorded on iPhones. The issue stems from iPhones using the HEVC format by default, while Telegram only accepts H.264. A developer created a bot to automatically convert videos to meet Telegram's strict specifications. The required format is a square, 800x800 MP4 file under 2MB with no audio. The bot uses FFmpeg to crop, resize, and transcode videos into a compatible format.

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