[FFmpeg-user] aspect ratio is changed with codec copy and sameq

[Carl Eugen Hoyos]

vrparekh <at> gmail.com <vrparekh <at> gmail.com> writes:

> one weird thing is when i see details in another video tool, it shows me
> sar=4:3
> dar=4:3
> of original video
> 
> but when i use command ffpeg -i sourcefile, it shows me
> sar=300:400
> dar=1:1

If the input file is decoded incorrectly, please provide a sample.

> 
> below is command line output of codec copy
> 
> ffmpeg.exe -ss 5 -t 150 -i "d:\source.mp4" -acodec
>  copy -vcodec copy "d:\output.mp4"

What does ffmpeg -i output.mp4 show?

Carl Eugen