CODEWITHSUNDEEP
fileffmpegconcatenationmpeg
Peter Olson
Peter Olson

Reputation:

Concatenation of files using ffmpeg does not work as I expected. Why?

I execute the following command line 

ffmpeg.exe
    -i C:\Beema\video-source\DO_U_BEEMA176x144short.avi 
    -i C:\Beema\video-source\DO_U_BEEMA176x144short.avi 
    -i C:\Beema\temp\9016730-51056331-stitcheds.avi  
    -i C:\Beema\video-source\GOTTA_BEEMA176x144short.avi 
    -y -ac 1 -r 24 -b 25K 
    C:\Beema\video-out\9a062fb6-d448-48fe-b006-a85d51adf8a1.mpg

The output file in video-out ends up having a single copy of DO_U_BEEMA. I do not understand why ffmpeg is not concatenating.

Any help is dramatically appreciated,

Upvotes: 0

Views: 3058

Answers (4)

Dipan Mehta
Dipan Mehta

Reputation: 2160

I guess ffmpeg cann't do that. It usually takes only one input file. Trying to cat files to input may result in a lump togather, but i guess it won't stitch properly.

Best bet is mencoder or using transcode

Upvotes: 0

Jjinator
Jjinator

Reputation: 11

If it has C:\, it's Windows. use: copy video1 + video2 + video3 and add more + videoN instances until you get there.

Upvotes: 1

Geoff
Geoff

Reputation: 1

Here is the command that will work for you first cat the files then pipe to ffmpeg

cat C:\Beema\video-source\DO_U_BEEMA176x144short.avi C:\Beema\video-source\DO_U_BEEMA176x144short.avi C:\Beema\temp\9016730-51056331-stitcheds.avi C:\Beema\video-source\GOTTA_BEEMA176x144short.avi | ffmpeg -f mpeg -i - C:\Beema\video-out\9a062fb6-d448-48fe-b006-a85d51adf8a1.mpg

-i - is important "-" this is the piped input to ffmpeg

Cheers.

Upvotes: 0

B00MER
B00MER

Reputation: 5491

mencoder -oac copy -ovc copy file1 file2 file3 … -o final_movie.mpg

Have you tried with mencoder?

Also are all of the files the same bitrate and dimensions? If not your going to need to make sure all of the video files are identical in these two areas before attempting to combine. It also appears your attempting to combine .avi's with a single .mpg, you'll most likely want to convert the .mpg to a similar format when re-encoding.

Hope this helps.

Upvotes: 2

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