[FFmpeg-devel] [PATCH] swresample/rematrix: fix mixing of center channels

[Michael Niedermayer]

Hi James

On Sun, Jan 12, 2025 at 06:52:55PM -0300, James Almer wrote:
> On 1/12/2025 6:25 PM, Michael Niedermayer wrote:
> > Hi
> > 
> > On Sat, Jan 11, 2025 at 11:13:30AM -0300, James Almer wrote:
> > > With this, the output from
> > > 
> > > ffmpeg -i $fate-samples/ac3/monsters_inc_5.1_448_small.ac3 -af aresample,aformat=channel_layouts=mono -f s16le -
> > > 
> > > matches the one from
> > > 
> > > ffmpeg -downmix mono -i $fate-samples/ac3/monsters_inc_5.1_448_small.ac3 -f s16le -
> > > 
> > > When testing with tiny_psnr.
> > > 
> > > Signed-off-by: James Almer <jamrial at gmail.com>
> > > ---
> > >   libswresample/rematrix.c | 4 ++--
> > >   1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > This worsense test results:
> 
> What test is this, and how is it read?

its just tests/swresample

and a dumb script that tries to compare its output to spot cases that worsen

thx

[...]

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