[FFmpeg-user] adding -ss and -t loses the audio stream on the output

[Carl Eugen Hoyos]

Tim Nicholson <tim.nicholson <at> bbc.co.uk> writes:

> So I have a command line to make two versions of a file that works 
> perfectly until I add in "-ss time -t duration". Then although 
> everything seems to work as normal, and the created files are the right 
> duration they lack the audio stream

Is this also reproducible with a shorter command line (without filters)?
Are external libraries (x264, faac) necessary to reproduce the problem?

Carl Eugen