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• How to loop thorough my text file and call the name of picture

  17 août 2022, par Ionut Bejinariu

  I need to take all audio files from a directory, and export them along with one of multiple pictures listed in a text file.

  


  It's working to take all the audio files one by one, but I cannot make it have a different picture for each video. I have same picture all the time.

  


  

  1. I don't know how to make the loop working for the pictures files.

  


  2. Will be nice if someone can tell me how I can group pictures in order to export as a slideshow.

  


  


  Thank you.

  


  In .txt file my pictures are like this :

  


  1.jpg
2.jpg
3.jpg


  


  And my code looks like this :

  


  @echo off
set "sourcedir=E:\test slideshow imagini"  
set "outputdir=E:\test slideshow imagini\1" 
PUSHD "%sourcedir%"
for /F "tokens=*" %%A in (poze3.txt) do (
    echo %%A
    :: pictures names
     for %%F in (*.wav *.mp3) DO ffmpeg -loop 1 -i %%A -i "%%F" -c:v libx264 -tune stillimage -c:a aac -b:a 192k -pix_fmt yuv420p -shortest -vf scale=1920:1080 "%outputdir%\%%F.mp4" 
    POPD
)


  


• How to convert images to a video by the time they have been taken/saved and not by name ?

  26 avril 2019, par Xester Menia

  I have a Livestream that takes pictures every one or two seconds. Then I have a folder in which the pictures are being saved.
  Usually I would just simply take ffmpeg -start_number -i IMG_%d.JPG video.webm (I need the end format in .webm). I want to use the saved pictures to form a time-lapse to put up next to the stream. So people can see the last 24h/ 7d and 90d. So I wondered if I could code that all the pics of that time period are used and only them.
  I later want it to happen automatic, so i dont have to write the code new every day.

  Thanks for your help

• How To Concatenate Two MP4 Videos With Different Aspect Ratios and Resolutions

  11 novembre 2017, par PortableDiag

  I am using ffmpeg to concatenate multiple MP4 videos, two at a time. The problem I am having is that the videos are often different resolutions and aspect ratios. One might come from a 480p webcam with a 1:1 aspect ratio and the other a brand new iPhone with 4k video and rectangular aspect ratio. Currently I must choose and set the aspect ratio manually and this results in one of the two videos becoming distorted, depending on the selected aspect ratio.

  How can I merge two videos so that the overall viewing field has a square aspect ratio but videos with a rectangular aspect ratio will be scaled to fit inside.

  I am using this command to merge the videos :

  ffmpeg -threads 1 -i '/518.mp4' -i '/516.mp4' -y -filter_complex "[0:v]scale=1080x1920,setpts=PTS-STARTPTS,setdar=0/1[v0];[1:v]scale=1080x1920,setpts=PTS-STARTPTS,setdar=0/1[v1];[v0][0:a][v1][1:a]concat=n=2:v=1:a=1" '/partial1.mp4'

  This is the result : https://www.dropbox.com/s/x1un7z1ljwr6tty/merged_newsort.mp4?dl=0

  Is it possible to apply a border to the rectangular video to give them a square aspect ratio ?

  How can I keep prevent distortion from occurring during the merge process ?

  Thanks in advance.