[FFmpeg-user] aresample=matrix_encoding=dplii output is still 5.1 ??

[pehache]

Le 28/01/2019 à 09:00, pehache a écrit :
> Le 27/01/2019 à 16:53, Carl Eugen Hoyos a écrit :
>> 2019-01-27 16:44 GMT+01:00, pehache <pehache.7 at gmail.com>:
>>
>>> I used to apply a Dolby Pro Logic II encoding this way :
>>
>> Actual command line and complete, uncut console output missing.
>>
> 
> OK
> 
> ffmpeg -i test.mkv -map 0:1 -c:a aac -b:a 256k -af 
> aresample=matrix_encoding=dplii -t 300 a.m4a
> 

I was classicaly adding the "-ac 2" option, but now I'm not sure if it's 
a good idea and what to do to get the 2 DPLII channels without any 
further mixing.