[FFmpeg-user] Issue with combining mp4 audio file and an image

[Edward Park]

Hi,

> Here is the error I am getting:
> 
> 
> Stream specifier ':a' in filtergraph description 
> [0:v]setsar=1[v0];[1:v]setsar=1[v1];[v0][1:a][v1][2:a]concat=n=4:v=1:a=1
> matches no streams.


Your input #2 is a jpeg.

Regards,
Ted Park