[FFmpeg-user] -qscale:a and -write_xing 0 can't be used at same time?

[Lou]

On Fri, 27 Jan 2017 00:53:43 +0900
桃源老師 <xanadu6291 at dream.jp> wrote:

> Hello ffmpeg experts...
> 
> I'm trying to convert alac (Apple Lossless Audio Codec) to mp3 on
> macOS.
> 
> I found that the result mp3 shows twice long duration in macOS Finder
> and iTunes.  I googled and found that adding "-write_xing 0" fixes
> this wrong duration.
> 
> But if I try to use "-write_xing 0" with "-qscale:a 2" at same time,
> the resulting mp3 shows very wrong duration on macOS Finder and
> iTunes.
> 
> Is -qscale:a and -write_xing 0 can't used at same time?

Related:

http://trac.ffmpeg.org/ticket/2697