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ffmpeg:encoding:h265:1-pass_target_bitrate

ffmpeg - Encoding - h265 - 1-pass target bitrate

A simple one-pass encode that tries to reach the specified bitrate at the end.

  • This will likely lead to the wrong bitrate estimations for the video part.
  • It is recommended to use a two-pass encoding mode if a certain target bitrate is required.

By setting -b:v and -b:a.


WARNING: Take care of the amounts used for the bitrate!

  • -b:v is bitrate, so 10000 is actually 10 kbps. The setting should probably be 10000k in this case.

Example

ffmpeg -i input.mp4 -c:v libx265 -b:v 8M -b:a 320k output.mkv
 
ffmpeg -i input.mp4 -c:v libx265 -b:v 8000k -b:a 320k output.mkv

NOTE:

  • -b:v: Target bitrate for Video.
  • -b:a: Target bitrate for Audio.
  • Abbreviations can be used, like K for kBit/s and M for MBit/s.
ffmpeg/encoding/h265/1-pass_target_bitrate.txt · Last modified: 2023/11/01 12:30 by peter

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