[FFmpeg-devel] [PATCH] QCELP postfilter

[Ronald S. Bultje]

Hi,

On Mon, Mar 29, 2010 at 5:11 PM, Ronald S. Bultje <rsbultje at gmail.com> wrote:
> Doesn't work, I get floating point exceptions on any sample I tried.
> Backtrace points inside ffplay, suggesting memory corruption, so I
> guess the patch doesn't work at all. I'm too lazy to go back 3 years
> and test it against that revision...

Hm, it didn't set sample_fmt, with that it works.

$ ./tiny_psnr ~/Desktop/out-{ref,us}.wav 2 0 44
stddev:  447.74 PSNR: 43.31 bytes:  8820800/  8820800

http://people.gnome.org/~rbultje/cmp.png

That's a picture of halfway the music file loaded in audacity, top =
reference and bottom = us, I removed the background for the bottom and
moved it to the top so it's easier to compare, all peaks are placed at
the same location (which is what you'd expect and what would happen
before postfilter also), but some curve-shapes are clearly different,
as suggested by the psnr.

Now what do I do? :-).

Ronald