• Compression Techniques

  default settings for x264 and ffmpeg

  Posted by Stan Juznitok on March 7, 2011 at 8:36 pm

  Hi,

  I was wondering if there is a way to obtain the default parameter setting for ffmpeg when used for encoding with x264. For exmaple, if I encode a video using x264 and don’t specify the target bitrate, it encodes the video usually around 200kps, so target of 200kbps is probably set somewhere by default. Is there a way to obtain some kind of a list of all defaults for ffmpeg+x264. I’m using the ffmpeg version for Windows.

  Many thanks!

  Michael Rampe replied 15 years, 5 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Michael Rampe

  March 8, 2011 at 4:48 am

  [Stan Juznitok] “I was wondering if there is a way to obtain the default parameter setting for ffmpeg when used for encoding with x264. For exmaple, if I encode a video using x264 and don’t specify the target bitrate, it encodes the video usually around 200kps, so target of 200kbps is probably set somewhere by default. Is there a way to obtain some kind of a list of all defaults for ffmpeg+x264.”

  $ man ffmpeg

  Where applicable, defaults are listed next to the options.

  eg.
  “‘-b bitrate’

  Set the video bitrate in bit/s (default = 200 kb/s). ”

  x264 is a library used by FFmpeg and not part of the trunk. Where the options are mapped, FFmpeg defaults should carry across. Where they are not, you might have to look at the x264 manual.

  $ x264 -h

  Michael

Reply to this Discussion! Login or Sign Up