Hi c*t,

really I have use this commandline to "encode" in vcodec copy a series of files:

Code:
ffmpeg64bitmar2017.exe -threads 12 -y -f concat -safe 0 -i concatList.txt -filter_complex "[0:1] [0:2] amerge" -vcodec copy -c:a pcm_s24le -aspect 16:9 concatHD.mov
where concatList.TXT is:

Code:
file 'V:\TeatroRomano\video\C0001.MXF' 
file 'V:\TeatroRomano\video\C0002.MXF' 
file 'V:\TeatroRomano\video\C0003.MXF' 
file 'V:\TeatroRomano\video\C0004.MXF' 
file 'V:\TeatroRomano\video\C0005.MXF' 

... ...

file 'V:\TeatroRomano\video\C0155.MXF'
this .MXF files are all identical for resolution, codec, fps ecc... They are shooted with the same camera.

The output is ok but there is a warning "timestamps are unset in a packet for stream 1 ... "

and during encoding the speed start from 10X and progressively it decreases up to 3X. Is there a way to resolve the speed problem and how means the warning? thanks


Image
[Attachment 40912 - Click to enlarge]