[FFmpeg-trac] #8714(avcodec:new): Support 22.2 channel AAC

FFmpeg trac at avcodec.org
Wed Jun 17 12:56:23 EEST 2020

#8714: Support 22.2 channel AAC
             Reporter:  yuuki        |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  aac          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |

Comment (by JEEB):

 At least my patch set seemed to enable remuxing to Matroska with the
 sample as I tested here locally (if you want a git version, it's available
 @ https://github.com/jeeb/ffmpeg/commits/22dot2_aac ).

 Compared to pkv's, it only implements the parts that currently are
 blocking decoding and demuxing of channel_config = 13 AAC streams, while
 his implements much more parsing of the AAC bit stream (which is a
 generally GoodIdea, I think?).

 Actual 22.2 to something-else downmix would have to be implemented
 separately so that players could utilize the decoded result through
 swresample or so.

Ticket URL: <https://trac.ffmpeg.org/ticket/8714#comment:6>
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