[FFmpeg-user] parse mkv file wrong problem

[Carl Eugen Hoyos]

Steven Liu <lingjiujianke <at> gmail.com> writes:

>            ffmpeg -i Hotcha.mkv -strict experimental -acodec aac
> -vcodec libx264 -pix_fmt yuv420p -debug_ts -b:v 2000k   -b:a 192k -ar
> 44100 -preset ultrafast -vprofile main -vlevel 3.1 -map 0 

-map 0 does not work for your sample because two of 
the four streams are empty.

For future reports / questions:
Please do not cross-post, this is considered rude everywhere afaict.
( And consider reading https://ffmpeg.org/contact.html )
Please do not top-post, this is considered rude here.
Please always post your command together with complete, uncut 
console output (note I asked for this in my original answer).

Carl Eugen