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    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
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    The code of this (...)

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Sur d’autres sites (9957)

  • Give a video rounded transparent edges so that it can be overlayed on another video using FFMPEG

    15 octobre 2020, par Kevin Jasti

    Im trying to overlay a smaller video (200x200)on top of a bigger video (800x800).

    



    I've used the FFMPEG overlay filter to achieve this

    



        ffmpeg -i big.mp4 -vf "movie=small.mkv[clip2]; [in][clip2] overlay=1:5 [out]"  final.mp4


    



    Challenge is that the smaller video needs its edges to be rounded.
I have tried working with alphaextract and alphamerge. The documentation on FFMPEG is sparse and im not sure how to go about it.

    


  • Give a video rounded transparent edges so that it can be overlayed on another video using FFMPEG

    30 septembre 2015, par Kevin Jasti

    Im trying to overlay a smaller video (200x200)on top of a bigger video (800x800).

    I’ve used the FFMPEG overlay filter to achieve this

        ffmpeg -i big.mp4 -vf "movie=small.mkv[clip2]; [in][clip2] overlay=1:5 [out]"  final.mp4

    Challenge is that the smaller video needs its edges to be rounded.
    I have tried working with alphaextract and alphamerge. The documentation on FFMPEG is sparse and im not sure how to go about it.

  • FFMPEG Adding intro video and scaling it to the original video

    10 octobre 2019, par Questions

    I have one intro video of fixed resolution, 1920x1080, and main videos with different resolutions. I could merge the videos using the following command

    ffmpeg -i intro.mp4 -i main.mp4 -i intro.mp4 -filter_complex " \
    
[0:v]scale=640x352,setsar=sar=16/9[intro]; \
    
[1:v]scale=640x352,setsar=sar=16/9[video]; \
    
[2:v]scale=640x352,setsar=sar=16/9[outro]; \
    
[intro][video][outro]concat=n=3[output]; \
    
[0:a][1:a] acrossfade=d=1 [audio]" \
    
-vcodec libx264 -map "[output]" -map "[audio]" "main__.mp4"

    This works perfectly if I specify the scales manually. But this doesn’t work for portrait videos which has resolution of 640x352 with rotation of -90 degrees, when I check them with ffprobe.

    Is there a way to scale the intro video dynamically to match the dimensions of the main video ? It’s fine if the intro video’s aspect ratio is distorted, and just retain the main video’s size.

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