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  <author_name>ykmbpp</author_name>
  <author_url>https://blog.hatena.ne.jp/ykmbpp/</author_url>
  <blog_title>YKMbPP</blog_title>
  <blog_url>https://ykmbpp.hatenadiary.org/</blog_url>
  <categories>
    <anon>ffmpeg</anon>
  </categories>
  <description>まずファイルの情報を調べる。 ffmpeg -i input.flv 結果の例: Duration: 00:03:10.63, start: 0.000000, bitrate: 594 kb/s Stream #0.0: Video: h264, yuv420p, 480x270 [PAR 1:1 DAR 16:9], 471 kb/s, 29.97 tbr, 1k tbn, 60 tbc Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 123 kb/s aacのままにして出力・・・(1) ffmpeg -i input.flv -vn -ac…</description>
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  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2010-09-17 01:23:23</published>
  <title>ffmpegでflvからaac/mp3を抜き出す</title>
  <type>rich</type>
  <url>https://ykmbpp.hatenadiary.org/entry/20100917/1284740603</url>
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