[FFmpeg-trac] #4544(avcodec:open): Problem transcoding 5.1 AAC LATM audio streams

FFmpeg trac at avcodec.org
Wed Feb 1 23:26:37 EET 2017

#4544: Problem transcoding 5.1 AAC LATM audio streams
             Reporter:  chq.contact   |                    Owner:
                 Type:  defect        |                   Status:  open
             Priority:  normal        |                Component:  avcodec
              Version:  git-master    |               Resolution:
             Keywords:  aac latm sbr  |               Blocked By:
             Blocking:                |  Reproduced by developer:  1
Analyzed by developer:  0             |

Comment (by tmm1):

 The SoC repo mentioned is available via:

     svn co svn://svn.mplayerhq.hu/soc
     cd aac

 The SSR implementation is behind a -DAAC_SSR compile flag, and disabled by
 default with the following comment:

      AAC SSR (Scalable Sample Rate) is currently not working, and
      not compiled in. SSR files play without crashing but produce audible
      artifacts that seem to be related to EIGHT_SHORT_SEQUENCE windows.

 It seems mostly complete, though it will definitely take some work to port
 the changes over to master.

Ticket URL: <https://trac.ffmpeg.org/ticket/4544#comment:8>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker

More information about the FFmpeg-trac mailing list