[FFmpeg-devel] [Issue 664] [PATCH] Fix AAC PNS Scaling
Tue Oct 7 22:08:30 CEST 2008
"Robert Swain" <robert.swain at gmail.com> writes:
> 2008/10/7 Alex Converse <alex.converse at gmail.com>:
>> On Tue, Oct 7, 2008 at 3:24 PM, Michael Niedermayer <michaelni at gmx.at> wrote:
>>> iam not sure how you can call that "far more significance" on one hand and
>>> pretend that skiping per band normalization would be ok OTOH.
>> Says the man who made Rob change it from the correct per band
>> implementation in the first place because he didn't know what he was
>> talking about, who likes to argue the finer points of the AAC
>> specification without even having access to a copy of the conformance
>> Per band is what MPEG asks for. Not doing it per band results in
>> statistics that deviate significantly from the sample statics measured
>> by the encoder that the decoder is trying to mimic. They have made
>> this clear on numerous occasions.
> Hmm, a slightly aggressive tone...
> Personally, I think we should re-implement the per-band normalisation
> to be conforming. Any complaints about doing this?
There is never an excuse for not conforming to specs, no matter how
stupid the specs are.
mans at mansr.com
More information about the ffmpeg-devel