[FFmpeg-user] amerge multiple inputs with filter_complex

[Madovsky]

> Carl Eugen Hoyos <cehoyos <at> ag.or.at> writes:
> 
>> >   Duration: 00:02:27.24, start: 0.023220, bitrate: 353 kb/s
>> 
>> Your first overlay is 2:27
>> 
>> >   Duration: 00:02:30.81, start: 0.023220, bitrate: 288 kb/s
>> 
>> Your second overlay is 2:30
>> 
>> You will have to add a "-t" option to your command line if 
>> you don't want your output file to have infinite length.
>> (Try -t 2:27)
> 
>>From the amerge documentation:
> If inputs do not have the same duration, the output will 
> stop with the shortest. 
> 
> If you want more than 2:27 audio in your output 
> file use the apad filter.
> 
> Carl Eugen

Not true,
when I remove the PNG image from the filter_complex everything
is ok. also I'd like to use this command for undefined length like
live stream and so stop when live stream is stopped.