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IDProjectCategoryView StatusLast Update
0000589fileGeneralpublic2024-12-16 14:18
Reporterqoheleth Assigned To 
PrioritynormalSeverityminorReproducibilityalways
Status newResolutionopen 
Product Version5.45 
Summary0000589: Variable bitrate MP3s incorrectly identified as 64 kbps
DescriptionWhen running `file` to classify an MP3 file, if the MP3 is encoded with a variable bitrate, `file`'s output classifies it as a 64 kbps MP3 regardless of the actual average bitrate of the file.

I'd expect that in situations like this, `file` either gives the correct average bitrate, or at least refrains from reporting a bitrate if it's not sure.
Steps To Reproduce1. Download the attached MP3
2. Run `ffmpeg -i example.mp3` and verify that it detects a bitrate of 102 kb/s
3. Run `file example.mp3` and verify that it reports `MPEG ADTS, layer III, v1, 64 kbps`
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qoheleth

2024-12-16 14:18

reporter  

example.mp3 (442,496 bytes)   

Issue History

Date Modified Username Field Change
2024-12-16 14:18 qoheleth New Issue
2024-12-16 14:18 qoheleth File Added: example.mp3