Cannot get correct AAC ADTS bitrate

[Magentaize]

The encoder is qaac 2.55, CoreAudioToolbox 7.10.6.0, AAC-LC Encoder, TVBR q127, Quality 96

[Magentaize]

The correct bitrate should be computed by sizeof("mdat") * 8 / Duration instead of read from the header.

[decriptor]

@PeoLeser any chance I could talk you into writing a unit test for this and documenting the unit test? Or even better the unit test and a fix? :)

[Magentaize]

@decriptor I have uploaded the unit test.Thanks for your attention.
In taglib-sharp\src\TagLib\Mpeg4\Boxes\AppleElementaryStreamDescriptor.cs: line 117
AAC_Test.zip

[Magentaize]

Due to the definition in the latest ISO specification, the "avgBitrate" box should be zero if using VBR. Close.

[shaforostoff]

this code makes a rough guess about file's bitrate and length:

taglib/taglib#856