Ffmpeg extract audio duration

[vanilla38]

Hello, everyone knows that ffmpeg returns wrong duration when we extract mp3 file using youtube-dl.

I wonder if someone already solved this problem and if not, if someone can tell me where i can find ffmpeg instruction in the code.

Thanks.

[phihag]

Closing as duplicate of #1022. The code of youtube-dl that calls ffmpeg is in PostProcessor.py.

[vanilla38]

Okay, i started to work on it, btw do you got any way to pass "video_duration" variable from youtube.py to PostProcessor.py file ? Thanks.

[vanilla38]

For people still trying to fix this => apt-get install vbrfix

syntax:
vbrfix file1.mp3 file2.mp3

this will correct mp3 headers and set a correct duration and bitrate without remuxe it.

thanks.