[FFmpeg-devel] AAC optimizations and 3.0

Ganesh Ajjanagadde gajjanag at gmail.com
Sat Mar 12 15:08:11 CET 2016

On Fri, Mar 11, 2016 at 2:18 AM, Hendrik Leppkes <h.leppkes at gmail.com> wrote:
> On Fri, Mar 11, 2016 at 2:09 AM, Michael Niedermayer
> <michael at niedermayer.cc> wrote:
>> On Thu, Mar 10, 2016 at 09:28:50PM -0300, Claudio Freire wrote:
>>> On Thu, Mar 10, 2016 at 8:34 PM, Michael Niedermayer
>>> <michael at niedermayer.cc> wrote:
>>> > Hi all
>>> >
>>> > if you fix speed regressions of the AAC encoder please backport them
>>> > also to release/3.0
>>> >
>>> > Thanks
>>> Even if that implies much bigger changes? (like the one I commented
>>> about aacpsy allocation)
>> i would say whatever is needed to make the code perform speedwise
>> similar to before 3.0
> If it requires significant refactoring beyond simple performance
> fixes, it should most definitely NOT go into a release branch.

In that case, I don't really know what should be done. For example,
the only major boost will come from Claudio's stuff, assuming it
materializes. The simple one-liner stuff from Reimar and me does not
add up to more than 30% or so in speed, which could still be useful
for clients.

I think we should table this for now until all this stuff goes into
master to get a clearer picture on the improvements. Then we can
discuss which commits everyone is comfortable with putting onto the
release branch.

> - Hendrik
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