[FFmpeg-trac] #7279(avcodec:new): Support AAC celp

[FFmpeg]

#7279: Support AAC celp
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               Reporter:  cehoyos      |                  Owner:
                   Type:  enhancement  |                 Status:  new
               Priority:  wish         |              Component:  avcodec
                Version:  git-master   |               Keywords:  aac
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
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 http://ffmpeg.org/pipermail/ffmpeg-user/2018-June/040356.html
 A user has provided an AAC celp sample made with fortherecord court
 recordings:
 {{{
 $ ffmpeg -acodec aac -i t1.trm
 ffmpeg version N-91368-g52e8a0d Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 6.4.0 (GCC)
   configuration: --enable-gpl
   libavutil      56. 18.102 / 56. 18.102
   libavcodec     58. 20.104 / 58. 20.104
   libavformat    58. 17.101 / 58. 17.101
   libavdevice    58.  4.101 / 58.  4.101
   libavfilter     7. 25.100 /  7. 25.100
   libswscale      5.  2.100 /  5.  2.100
   libswresample   3.  2.100 /  3.  2.100
   libpostproc    55.  2.100 / 55.  2.100
 [aac @ 0x9ff7440] Audio object type 8 is not implemented. Update your
 FFmpeg version to the newest one from Git. If the problem still occurs, it
 means that your file has a feature which has not been implemented.
 [avi @ 0x9ff61c0] Failed to open codec in avformat_find_stream_info
 [aac @ 0x9ff7440] Audio object type 8 is not implemented. Update your
 FFmpeg version to the newest one from Git. If the problem still occurs, it
 means that your file has a feature which has not been implemented.
 Guessed Channel Layout for Input Stream #0.0 : 4.0
 Input #0, avi, from 't1.trm':
   Duration: 00:05:00.07, start: 0.000000, bitrate: 100 kb/s
     Stream #0:0: Audio: aac ([128]A[0][0] / 0x4180), 24000 Hz, 4.0, fltp,
 24 kb/s
 At least one output file must be specified
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7279>
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