Opened 4 years ago

Last modified 4 years ago

#6901 new enhancement

AAC cbr encoding

Reported by: romario Owned by:
Priority: wish Component: avcodec
Version: git-master Keywords: aac
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Summary of the bug:
How to reproduce:

ffmpeg.exe -y -i example.flac -f mp4 -b:a 320k output_320.mp4

Actual result : mp4 file has 334k bitrate
Expected result : mp4 file has 320k bitrate

Change History (2)

comment:1 by Gyan, 4 years ago

The native AAC encoder does not have a true CBR mode. The external FDK_AAC encoder does.

comment:2 by Carl Eugen Hoyos, 4 years ago

Component: ffmpegavcodec
Keywords: aac added; mp4 bitrate removed
Priority: normalwish
Summary: FFmpeg mp4 bitrate is higher than specifiedAAC cbr encoding
Type: defectenhancement
Version: 3.4git-master
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