[FFmpeg-user] Number of stream maps must match number of output streams - having trouble with the syntax

[Tim Nicholson]

On 20/07/12 10:16, Matt Goble wrote:
> I have a video file which appears to have a video / audio offset which is
> causing my client some issues.
> 
> I've tried to google a solution, but I seem to be having an issue with
> getting the syntax correct.
> 
> ffmpeg
> 
> -i "T:\INPUT.mov"
> -itsoffset 0.48 -i "T:\INPUT.mov"
> -map 1:0
> -map 0:1
> -map 0:2
> -map 0:3
> -map 0:4
> -map 0:5
> -vcodec copy
> -acodec copy
> "T:\OUTPUT.mov" -vcodec copy -newvideo -newaudio
> 
> FFmpeg version SVN-r25512, Copyright (c) 2000-2010 the FFmpeg developers
>  [....]
> Number of stream maps must match number of output streams
> 
> Any help greatly appreciated.
> 

From:0
http://ffmpeg.org/ffmpeg.html#Stream-selection

"By default ffmpeg includes only one stream of each type (video, audio,
subtitle) present in the input files and adds them to each output file..."


You have requested -newvideo and -newaudio leading to 2 video and two
audio, but you are trying to map two videos and 4 audios...

Do you really want the video twice?

try .... -map 1:v -map 0:a -vcodec copy -acodec copy "T:\OUTPUT.mov"

> Thanks
> 
> Matt
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> 


-- 
Tim