[FFmpeg-trac] #11351(undetermined:new): Native AAC-enocoder doesn't create constant bitrate.

FFmpeg trac at avcodec.org
Fri Dec 13 13:10:02 EET 2024


#11351: Native AAC-enocoder doesn't create constant bitrate.
-------------------------------------+-------------------------------------
             Reporter:  maxmanus     |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  native aac   |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Description changed by maxmanus:

Old description:

> Summary of the bug:
> How to reproduce:
> {{{
> % ffmpeg -i input -c:a aac -b:a 320k -af aresample=resampler=soxr -ar 48k
> ... output
> Output is then variable bitrate.
>
> If I just write -b instead of -b:a 384k it creates constant bitrate but
> then it defaults to 192k
>
> ffmpeg version N-114629-g1590a96adc-20240403
> built on ...gcc 13.2.0 (crosstool-NG 1.26.0.65_ecc5e41
> }}}
> Patches should be submitted to the ffmpeg-devel mailing list and not this
> bug tracker.

New description:

 Summary of the bug:
 How to reproduce:
 {{{
 % ffmpeg -i input -c:a aac -b:a 320k -af aresample=resampler=soxr -ar 48k
 ... output
 Output is then variable bitrate.

 If I just write -b instead of -b:a 320k it creates constant bitrate but
 then it defaults to 192k

 ffmpeg version N-114629-g1590a96adc-20240403
 built on ...gcc 13.2.0 (crosstool-NG 1.26.0.65_ecc5e41
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
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Ticket URL: <https://trac.ffmpeg.org/ticket/11351#comment:2>
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