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• How to insert Text instead of image as watermark in video using ffmpeg ? [duplicate]

  7 octobre 2017, par djac

  This question already has an answer here :

  • Text on video ffmpeg
    
    1 answer
    

  Following is the code to insert an image as watermark in the video. I want a text in the place of image as watermark.

  In the below example "djaco-property" text, instead of "watermark.png" image. Can you help to do that ? (Coding is done in Android).

  ffmpeg -i birds.mp4 -i watermark.png -filter_complex "overlay=10:10" birds1.mp4

• How to add watermark to video. i.e. both png and text

  8 juillet 2021, par Usama Shakeel

  I want to add a watermark to my video. I want to add both text and a png as watermark. I want to place text at the bottom of the image. I was able to place an image but I am not able to place both image and text.

  


• Read a text file line-by-line (each line as an array), run bash command with array elements, then loop to the next line in the text file

  10 janvier, par xiaohouzi

  I'm using immich to manage my media library with photos and videos but appropriate video thumbnails are black or do not have an appropriate thumbnails for my family to view. As a test, I decided to manually recreate the thumbnails and then update appropriate thumbs files in the exact directory ; replacing the auto-generated ones by Immich using ffmpeg. The following script works fine but one by one will take forever.

  


  #!/bin/bash
file=(formula1 "aust_gp_00'23'41_2022_1858658849.mp4" f2dfse3-34gd-23ff-6hdd-p3h4kk/a3/10/a399-dj88-ah29 00:00:30.000)

# create jpeg + webp and replace existing
sudo ffmpeg -i /mnt/f1/"${file[0]}"/"${file[1]}" -ss "${file[3]}" -frames:v 1 /immich/app/thumbs/"${file[2]}"-preview.jpeg -y \
&& \
sudo ffmpeg -i /mnt/f1/"${file[0]}"/"${file[1]}" -ss "${file[3]}" -frames:v 1 /immich/app/thumbs/"${file[2]}"-thumbnail.webp -y


  


  My goal is to put all the needed files in a text file use "readarry" to read each line as an array, use the appropriate index and then repeat for the next line. This is where I am stuck. How could I loop through each line where each line is a new file, keep the same indexes, and repeat ? Anyone familiar with how to accomplish this or if there is a better way using bash ? I was hoping to only use bash instead of python.

  


  For example...

  


  #files.txt
file=(formula1 "aust_gp_00'23'41_2022.mp4" f2dfse3-34gd-23ff-6hdd-p3h4kk/a3/10/a399-dj88-ah29 00:00:30.000)
file=(formula1 "belg_gp_00'13'31_2022.mp4" f2dfse3-34gd-23ff-6hdd-p3h4kk/q4/6/mhf-846d-zpyf 00:00:30.000)
file=(formula1 "melb_gp_00'05'11_2022.mp4" f2dfse3-34gd-23ff-6hdd-p3h4kk/b9/2/q3dd-0988-vr2t 00:00:30.000)



  


  # genthumb.sh
#!/bin/bash
readarray -t lines < files.txt &&
  for line in "${!lines[@]}"; do
    sudo ffmpeg -i /mnt/f1/"${lines[0]}"/"${lines[1]}" -ss "${lines[3]}" -frames:v 1 /immich/app/thumbs/"${lines[2]}"-preview.jpeg -y \
    && \
    sudo ffmpeg -i /mnt/f1/"${file[0]}"/"${file[1]}" -ss "${file[3]}" -frames:v 1 /immich/app/thumbs/"${file[2]}"-thumbnail.webp -y
  done