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ffmpeg [2019/06/29 10:21] – beandogffmpeg [2026/08/25 14:53] (current) – beandog
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   * [[Subtitles]]   * [[Subtitles]]
  
 +  * [[https://amiaopensource.github.io/ffmprovisr/|ffmprovisr]] - excellent page to help you "build" an ffmpeg command
   * [[https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide]]   * [[https://en.wikibooks.org/wiki/FFMPEG_An_Intermediate_Guide]]
   * [[http://wiki.indie-it.com/wiki/FFmpeg_DVD]] - lots of good, detailed ffmpeg examples   * [[http://wiki.indie-it.com/wiki/FFmpeg_DVD]] - lots of good, detailed ffmpeg examples
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 <code> <code>
 dvd_copy -o - | ffmpeg -fflags +genpts -i - -codec copy dvd_copy.mkv  dvd_copy -o - | ffmpeg -fflags +genpts -i - -codec copy dvd_copy.mkv 
 +</code>
 +
 +''ffmpeg'' can copy a Blu-ray directly as well, once you know the playlist number (see [[bluray_info]]).
 +
 +<code>
 +ffmepg -playlist 800 -i bluray:/dev/sr0 -codec copy bluray_playlist.mkv
 </code> </code>
  
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 <code> <code>
 ffmpeg -i dvd_copy.mkv -f ffmetadata metadata.txt ffmpeg -i dvd_copy.mkv -f ffmetadata metadata.txt
 +</code>
 +
 +=== Normalize Audio ===
 +
 +Set the audio level at the same rate:
 +
 +<code>
 +ffmpeg -hide_banner -v warning -stats -i input.mp4 -vcodec copy -af loudnorm=I=-16:TP=-1.5:LRA=11 -ar 48000 -n output.mp4
 +</code>
 +
 +=== Pad and Blur ===
 +
 +Convert to 9:16 and add blurred background:
 +
 +<code>
 +ffmpeg -hide_banner -v warning -stats -i input.mp4 -filter_complex "[0:v]scale=1080:1920:force_original_aspect_ratio=increase,crop=1080:1920,boxblur=80:10[bg];[0:v]scale=1080:-2:force_original_aspect_ratio=decrease[fg];[bg][fg]overlay=(W-w)/2:(H-h)/2" -vcodec h264_nvenc -preset p7 -acodec copy -n output.mp4
 </code> </code>
  

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