How To: best way to rescale

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Ken Bass <daytooner <at>> writes:

> I need to rescale several videos. What is the best way to do that without
> recoding the entire video, but maintaining quality?
> I have tried "ffmpeg -i <> -s WxH"

You should really tell ffmpeg:
Either the (video-) bitrate it should use: -b 1M
Or the quality (this is usually not the recommended method, if you don't just
want maximum quality): -qscale 2

It makes sense to also specify the audio bitrate: -ab 128k

Please read ffmpeg's man page for more information!

Concerning your home theater system: Are you sure that the problem is the
resolution (and not the container or codec type)? I find it surprising that the
system does not just down-scale the video to the maximum resolution. (Does it
show very small videos without upscaling them?)

Carl Eugen

[Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Photo]     [Yosemite News]    [Yosemite Photos]    [Free Online Dating]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Devices]

Add to Google Powered by Linux