On Mon, 22 Feb 2010 14:36:34 -0800 Ken Bass <daytooner at gmail.com> wrote: > The reason is that I have several videos that won't play on my home > theatre system because it is limited to a resolution of 800x600. And, > no, I'd rather not have to buy a new system at the moment. I just > wondered if there might be a way to quickly and easily rescale without > fully recoding. What formats does the device support? Something like MPEG-1/2 would be quite a bit faster to encode than H.264. If size doesn't matter, you can use keyint=1:vqscale=2 and encode a very large file ridiculously fast. > I have tried "ffmpeg -i <src.xxx> -s WxH src_new.xxx" > > where 'W' and 'H' are the new width and height. I try to keep the > same aspect ratio as the original. > > When I do this, the new video is much poorer quality. If you specify a high video bitrate (rather than none at all), it can be quite high quality. -- Ha. I'm the idiot.
