[FFmpeg-devel] [RFC]Remove experimental flag from aac encoder
krueger at lesspain.de
Tue Sep 1 10:54:21 CEST 2015
On Mon, Aug 31, 2015 at 5:31 PM, Claudio Freire <klaussfreire at gmail.com>
> On Mon, Aug 31, 2015 at 6:59 AM, Robert Krüger <krueger at lesspain.de>
> > On Mon, Aug 31, 2015 at 10:44 AM, Carl Eugen Hoyos <cehoyos at ag.or.at>
> >> Hi!
> >> I didn't test myself but iiuc, the aac encoder produces better
> >> quality than all other libavcodec audio encoders and better
> >> quality than the libvo-aac encoder that is not marked as
> >> experimental, so the flag should be removed.
> > I haven't done scientifically thorough testing but it has improved a lot
> > over the past few months and is definitely in a very usable state
> > quality-wise (in 256kbit I couldn't hear differences to the Apple
> > which regularly gets very high test scores, tested with HQ source
> > and equipment) and probably much better maintained than a lot of other
> > pieces of non-experimental code. If there are no known, significant
> > stability issues +1.
> It has some relatively annoying issues with transients. We've got
> patches in the queue already to fix those.
> On Mon, Aug 31, 2015 at 8:49 AM, Rostislav Pehlivanov
> <atomnuker at gmail.com> wrote:
> > Claudio also has some changes which he still hasn't merged yet, not sure
> > he has the time right now. I'll write to him to see what he's up to.
> > PNS, Intensity Stereo and maybe M/S need to get enabled by default since
> > they definitely improve the quality a ton. Might do that for PNS and IS
> > when I push the last TNS changes tonight.
> > Bottom line is, there are still some things which need to be pushed and I
> > think after that, in 4-5 days depending on what's happening with
> > changes, I will personally be comfortable with removing the experimental
> > flag and declaring the encoder stable.
> It's been the plan all along to negotiate the removal of the
> experimental flag after pushing those changes discussed and heavily
> tested in ticket #2686.
> If anything, this thread expresses support for that plan ;)
> So, I'd stick to that plan.
I know this is probably an annoying question but do you have a gut feeling
very roughly when you will feel comfortable with pushing those changes for
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