Re: [FFmpeg-devel] Patch to create trapezoid videos with ffmpeg.

2014-10-18 Thread Michael Niedermayer
On Sat, Oct 18, 2014 at 03:47:38PM -0700, Nicholas Robbins wrote: > > On Saturday, October 18, 2014 8:55 AM, Nicholas Robbins > > wrote: [...] > @@ -66,6 +73,10 @@ static const AVOption perspective_options[] = { > { "interpolation", "set interpolation", OFFSET(interpolation), > AV_OPT_TYPE_

[FFmpeg-devel] Patch to create trapezoid videos with ffmpeg.

2014-10-18 Thread Nicholas Robbins
> On Saturday, October 18, 2014 8:55 AM, Nicholas Robbins > wrote: > >> On Saturday, October 18, 2014 8:36 AM, Moritz Barsnick > wrote: > >> You basically got it right. (I happened to follow the thread on >> ffmpeg-devel, thanks for forwarding it.) >> >> a) An inverse calculation, like i