[FFmpeg-user] acodec copy and multiple audio streams

[Tim Nicholson]

On 02/05/12 04:56, Dieter Knopf wrote:
> Hello,
> 
> i have a problem converting a mkv file with multiple audio streams
> with the -acodec copy command.
> 
> Here is my command:
> fmpeg -i foo -sn -acodec copy -vcodec libx264 -preset slow -tune film
> -profile high -crf 21 -threads 0 -s hd720 foo2
> 
> This works perfect, except the second audio stream got lost after this.
> There are two audio streams #0:1 and #0:2, but "Streaming mapping"
> shows only #0:1 -> #0:1 (copy).
> 

I refer you to http://ffmpeg.org/ffmpeg.html#Stream-selection

and

http://ffmpeg.org/ffmpeg.html#Advanced-options

I think you will find you need -map 0:a

> Thanks
> 
> Dieter


-- 
Tim