#11351: Native AAC-enocoder doesn't create constant bitrate.
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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 |
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Comment (by maxmanus):
Ok, but when I write just -b it does show as constant bitrate in
mediainfo.
If -b:a 320k it shows as variable. I want it to show as constant. No way
to fix this?
I'm using qaac now because of this, but seems buggy when muxing together
after with ffmpeg.
Replying to [comment:3 Balling]:
> Neither of those produce true constant bitrate, you need
-bit_rate_tolerance 0 option. b92af7b64e7acd015aea3ae1da2228c5a7e677bf
>
> >Output is then variable bitrate.
>
> it does decrease bitrate if the sound does not need needed amount of
data, but bit_rate_tolerance 0 has bugs
https://patchwork.ffmpeg.org/project/ffmpeg/patch/517a57ef18398a39952fcc1d02e51ef423cf80ae.1726262133.git....@iki.fi/
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Ticket URL: <https://trac.ffmpeg.org/ticket/11351#comment:4>
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