[FFmpeg-devel] [ANNOUNCE] New Commercial Product Using FFMPEG - Thanks To Developers.
michaelni at gmx.at
Mon Nov 26 02:41:32 CET 2012
On Mon, Nov 26, 2012 at 12:50:23AM +0100, Stefano Sabatini wrote:
> On date Friday 2012-11-23 01:59:55 -0600, ffmpeg-devel at ballcam.com encoded:
> > libavfilter was originally considered to do the unrotating,
> > but as far as it is understood at this time, the rotate
> > filter only works in 90 degree increments. (Currently
> > FFMPEG-1.0 is used, and unless there is a need to use
> > a later commit, point-releases will be used).
> > If the FFMPEG team would like to include arbitrary angular
> > rotation as part of the rotate libavfilter, please respond as
> > such to this message, and BallCam Technologies Inc. may
> > pursue that as part of its contribution.
> Check the (still flawed) vf_rotate.c filter in the archive. The
> rotation angle may be injected through the metadata API into each
but make sure you do not use some nearest neighbor code, its very bad
quality and will be rejected if submited that way.
the vf_perspective code is doing proper linear and cubic interpolation
vf_rotate did nearest neighbor at some point IIRC, i dont know if the
last patch still did
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
Into a blind darkness they enter who follow after the Ignorance,
they as if into a greater darkness enter who devote themselves
to the Knowledge alone. -- Isha Upanishad
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