[FFmpeg-user] acodec copy and multiple audio streams

Dieter Knopf dieterknopf at googlemail.com
Wed May 2 05:56:55 CEST 2012


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).



More information about the ffmpeg-user mailing list