User Tools

Site Tools


rescale_video

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
Last revisionBoth sides next revision
rescale_video [2017/08/17 19:11] walkeradminrescale_video [2017/08/17 19:14] walkeradmin
Line 8: Line 8:
 \\  \\ 
 \\  \\ 
 +
 +----
 +
 This is how to rescale the video, where you specify the framesize: This is how to rescale the video, where you specify the framesize:
-\\  
 \\  \\ 
     ffmpeg -i input.mov -vf scale=320:240 output.mov     ffmpeg -i input.mov -vf scale=320:240 output.mov
 \\  \\ 
 +
 +----
 +You can also rescale without specifying the exact aspect ratio, so here we have specified the width, and the height will be worked out automatically from the original aspect ratio.
 +\\ 
 +    ffmpeg -i input.mp4 -vf scale=320:-1 output.mp4
 +\\ 
 +\\ 
 +
 +----
 +
 +To transcode and rescale in one go, you can use the following example:
 +\\ 
 +    ffmpeg -i source.mov -vcodec h264 -b:v 50M -vf scale=960:540 dest.mp4
 +\\ 
 +\\ 
 +
  
rescale_video.txt · Last modified: 2023/03/09 22:35 by 127.0.0.1