AAC NEON optimisations in libav

Registered by Ilias Biris on 2011-12-12

AAC codec in libav : SBR/PS missing NEON

Blueprint information

Status:
Complete
Approver:
Tom Gall
Priority:
High
Drafter:
Mans Rullgard
Direction:
Approved
Assignee:
Mans Rullgard
Definition:
Approved
Series goal:
Accepted for trunk
Implementation:
Implemented
Milestone target:
milestone icon 2012.03
Started by
Mans Rullgard on 2012-01-23
Completed by
Tom Gall on 2012-05-07

Related branches

Sprints

Whiteboard

Status:
[ibiris 08mar2012]: milestone target is the 2012.03 release for this blueprint
[ibiris 16jan2012]: moving back to backlog, needs to be planned for a monthly milestone

Meta:
Roadmap id: MMWG2011-SW-LIBAV-CODEC-OPTIMIZATION
Headline: NEON optimisations for SBR (spectral band replication - enhances audio especially at low bit rates) and PS (parametric stereo - carries 2-3 kbit/s of side info which together with mono audio stream, allows the decoder (player) to regenerate a faithful spatial approximation of the original stereo panorama at very low bitrates)
Acceptance: FIXME
Output: FIXME

(?)

Work Items

Work items:
Profile SBR: DONE
Add SBR optimisation hooks: DONE
NEON optimise SBR: DONE
Profile PS: DONE
Add PS optimisation hooks: DONE
NEON optimise PS: DONE
Upstream review: DONE

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