[FFmpeg-trac] #1407(avcodec:new): aac: 960/120 MDCT window is not implemented

FFmpeg trac at avcodec.org
Tue Sep 26 20:16:01 EEST 2017


#1407: aac: 960/120 MDCT window is not implemented
-------------------------------------+-----------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------

Comment (by Basic.Master):

 Meanwhile support for 960 samples/frame has been added:
 https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/dbc9a8f21f92d0613142ea23bb836356fc41de38

 (only discovered due to this issue: https://github.com/piratfm/eti-
 tools/issues/10)

 While the support seems to be fine for the above AAC-LC sample, according
 to the console warnings there is no support (yet) for SBR (HE-AAC) and/or
 PS (HE-AAC v2) for the 960 case. Thus in such cases only the half-
 bandwidth respectively Mono core is decoded.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/1407#comment:23>
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