[FFmpeg-devel] [OPW] OPW Project Proposal

[Pallavi Kumari]

>> ok, do you know how to compute that or should i explain it ?

Explanation will help. Is there any function in FFmpeg to get absolute
value of FFT?
and how to get frequency data?


On Fri, Nov 4, 2016 at 11:04 PM, Michael Niedermayer <michael at niedermayer.cc
> wrote:

> On Fri, Nov 04, 2016 at 09:01:22PM +0530, Pallavi Kumari wrote:
> > >> The frequency components after a R->C FFT are complex numbers
> > >> the peak values of complex numbers are not the same as the maxima of
> > >> their real components
> > >> did the paper this is based on say anything about what is recommanded
> > >> to take here for the maxima?
> >
> > >> It would seem logic to me to take the magnitude of the complex numbers
> > >> instead of the real components individually, but that may or may not
> > >> be what the paper meant
> > >> not that we have to do what the paper says, we can in fact do
> something
> > >> entirely different if it works better
> >
> > We need points who have high peak intensity(amplitude). Hence, we require
> > amplitude value at frequency points (say x-axis is freq and y is
> > amplitude.) so, I guess taking magnitude of complex numbers is logical.
> > That's how people are using.
>
> ok, do you know how to compute that or should i explain it ?
>
> [...]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> What does censorship reveal? It reveals fear. -- Julian Assange
>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
>