[FFmpeg-devel] [PATCH] avfilter: add native headphone spatialization filter

[wm4]

On Thu, 8 Jun 2017 11:36:02 +0200
Paul B Mahol <onemda at gmail.com> wrote:

> On 6/8/17, wm4 <nfxjfg at googlemail.com> wrote:
> > On Thu,  8 Jun 2017 08:13:48 +0200
> > Paul B Mahol <onemda at gmail.com> wrote:
> >  
> >> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> >> ---  
> >
> > Feeding the coefficients as additional audio inputs, and using amovie
> > to load them, seems like an extremely awkward choice. It would make
> > sense to me if there actually were a set of input coefficients per
> > actual audio input, but that's not the case. Instead, the efficients
> > are a much smaller stream than the main audio input.
> >
> > Why not load the coefficients directly?  
> 
> I'm not going to add yet another movie filter.
> The amovie is there just because I used same filtergraph with mpv to
> be able to seek.

A user would need to connect all the inputs even with ffmpeg CLI. Not
sure why you're talking about "another movie filter" - why not just
load the coefficients directly, using a custom format if necessary?
From what I understand, you need to do something special to produce
those coefficient wav files anyway.