[FFmpeg-user] Fwd: Can't concat two files which were encoded the same way.

[Carl Eugen Hoyos]

Zsolt <dqeswn <at> gmail.com> writes:

> > You cannot concat two mkv files with the concat
> > protocol, please use the concat demuxer (or the
> > concat filter if you want to reencode).

> Can I ask what's the reason for this? 

Only headerless formats like mpegts and mpegps work 
with the concat protocol.

> I could concat and even transcode two recently 
> created avi/Ut-video/PCM files into one mkv, 
> using this syntax.

avi also does not work.

> (Ouch, For the other two concat variants. The first 
> is mostly unworkable on windows.

Could you elaborate?

> The second is just amazingly complicated/cumbersome.)

Same here.

Carl Eugen