[FFmpeg-user] How to change -vcodec tiff resolution?

[Thomas Kumlehn]

The dpi header value just suggests a default presentation size and should not bother you at all. 72dpi means : spread 720px to 10 inches screen width. 96dpi just results in 7.5". But both images are 720 pixel wide.
Use Irfanview or other tools to alter just this header detail later.

Best wishes

Thomas Kumlehn
PIXEL PARTNER (R)

gesendet von meinem iPad 3-D
http://www.pixelpartner.de/ipad3d

Am 17.08.2011 um 15:23 schrieb Eric Hollis <eric.hollis at gmail.com>:

> Hi.  First, thanks for the help yesterday re how to grab images from video
> (vfwcap) for a 16mm film archiving project. This works for me:
> 
> ffmpeg.exe -r 1 -t 1 -rtbufsize 10000000 -f vfwcap -s hd720 -i 0 -vframes 1
> -an -vcodec tiff test%d.tif
> 
> However, I have one last problem with this.  The tif image that results is
> 72dpi, and I want it to be 96dpi or higher. Could someone point me in the
> right direction?
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