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• ffmpeg add long text in multiline automatically

  30 juillet 2016, par Pranoy C

  I am using ffmpeg to add text to a video. Currently this command works for me :

  ffmpeg -y -i cut.mp4 -vf drawtext="fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf: text='Stack Overflow': fontcolor=white: fontsize=24: box=1: boxcolor=black@0.5: boxborderw=5: x=(w-text_w)/2: y=main_h-(text_h*3)" -codec:a copy output.mp4

  1. If I have a very long text "Stack Overflow is awesome and this is a test of long text", is there a way to automatically make it wrap without me having to insert new line characters in the text ?

  Currently such a text just goes off the screen if I don’t have newline characters.

  2. Is there a way to specify maximum width & height for the text ?

• Bash script to text watermark video from filename (ffmpeg)

  13 juin 2016, par Yian

  I would like to automate some text to be ’watermarked’ on my videos. Basically I want to create a marker in my file names (eg "&&"). Then I want the script to take the content after "&&" and place it in the "drawtext" content.

  For example, file named "Video2132 && The First Test" would make the part after "text=" become "The First Test".

  The below code works fine without the drawtext part.

  As soon as I add that function, the script runs, but it creates empty video files (zero bytes).

  for f in ./*.mov; do
  
      printf '%s\n' "Doing stuff with: ${f}"
  
  
  
      i='0'
  
      while (( i <= 5 )); do
  
          ffmpeg -ss "$(( i * 25 ))" -t 25 -i "${f}" -acodec copy -vf drawtext="fontfile=/Users/mac1/Library/Fonts/Gillsanslight.ttf: \
  
  text='Stack Overflow': fontcolor=white: fontsize=24: box=1: boxcolor=black@0.5: \
  
  boxborderw=5: x=(w-text_w)/2: y=(h-text_h)/2" -codec:a copy "${f%.mov}.${i}.mov" -loglevel quiet
  
          (( i++ ))
  
      done
  
  done

• Idea on how to make video maker website ?

  13 octobre 2015, par Gulam Gajani

  I want to create website that create video and user can share that website in any social site.

  (example sites :

  1. flixpress.com
  2. studio.stupeflix.com
  3. www.photodex.com
  4. www.picovico.com )

  this type of website i want to create.After long research and come to conclusion to use imagemagick and ffmpeg for my website.I learn the basic of the ffmpeg and imagemagick.
  SO I create code like this
  for text overlay in ffmpeg i create code like this

     ffmpeg -i input.mp4 -vf drawtext="fontfile=/usr/share/fonts/TTF/Vera.ttf: \
  
          text='Stack Overflow': fontcolor=white: fontsize=24: box=1: boxcolor=black: \
  
          x=(w-text_w)/2: y=(h-text_h-line_h)/2" -codec:a copy output.flv

  and for imagemagick use convert to make pics and make slideshow with ffmpeg code.

   shell_exec(" ffmpeg -framerate 1*10 -i %d.png -c:v libx264 -r 30 -pix_fmt yuv420p out1.mp4");

  This code works fine.No error, nothing.
  But the output video does not have the quality that i wanted.
  My question is that for create website like i mentioned above.Am i using the right software (ffmpeg and imagemagick).what software or code this type of website used ? Any idea ? any opensource software or program for this ?
  I am just newbie and try to learn the things.
  Please provide guidance on this what i am doing wrong.Just give the software name of programe which is used for this type of website. I can go through by myself. Please Give some idea on this.