[FFmpeg-user] Audio transcoding with metadata and album cover image

[Lukas Österreicher]

Hi.

I'm trying to re-encode from mp3 to he-aac and include metadata and an
album cover image.

All but the last works for me like this:
ffmpeg -i 150.mp3 -c:a libaacplus -b:a 48k -metadata:s:v title="track title" -metadata:s:v author="artist name" 150_encoded.m4a

However I can't get the last one to work.
I tried something like this here: http://ffmpeg.org/ffmpeg-formats.html#mp3
which is in my case
ffmpeg -i 150.mp3 -i 150.jpg -c:a libaacplus -b:a 48k -map 0 -map 1 -metadata:s:v title="track title" -metadata:s:v author="artist name" 150_encoded.m4a

But that gives me this error:
Encoder (codec none) not found for output stream #0:1

Any suggestions?
Thanx, Lukas