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ffmpegで"Decoder (codec none) not found for input stream #0:0"となったとき

Last updated at Posted at 2021-10-04

環境

  • ubuntu 20.04

問題

$ ffmpeg -i input.avi output.mp4
ffmpeg version 4.2.4-1ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
#中略
Stream mapping:
  Stream #0:0 -> #0:0 (? (?) -> hevc (libx265))
Decoder (codec none) not found for input stream #0:0

解決

ffmpegをversion 4.3以上にすれば解決するみたいです。
ffmpegのアップデート方法は以下を参考にしました。

参考

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