openharmony/third_party_ffmpeg
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2 Commits

Author SHA1 Message Date
Reimar Döffinger
b91e376390 aacenc: use generational cache instead of resetting. 
Approximately 11% faster transcoding from mp3 with
default settings.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2016-03-08 23:56:51 +01:00
Claudio Freire
b629c67ddf AAC encoder: memoize quantize_band_cost 
The bulk of calls to quantize_band_cost are replaced
by a call to a version that memoizes, greatly improving
performance, since during coefficient search there is
a great deal of repeat work.

Memoization cannot always be applied, so do this in a
different function, and leave the original as-is.
 2015-10-12 03:56:22 -03:00