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• Adding splash screen using FFMPEG

  4 janvier 2017, par mvalencaa

  everyone !

  I’m trying to add a splash screen to fade out after 2 seconds into a video using FFMPEG.

  I’m using the following command :

  ffmpeg -loop 1 -framerate 2 -t 2 -i image.png \
  
     -i video.mp4 \
  
     -filter_complex "[0:v]fade=t=in:st=0:d=0.500000,fade=t=out:st=4.500000:d=0.500000,setsar=1; \
  
     [0:0] [1:0] concat=n=2:v=1:a=0" \
  
     -c:v libx264 -crf 23 output.mp4

  but it is generating a video whose duration is correct, but plays for just 2 seconds, exactly the splash screen duration.

  Since I don’t have very experience on FFMPEG and got this code from the internet I don’t know where the problem is...

• How to apply multiple filters and inputs with ffmpeg

  24 juillet 2017, par Jason

  Not only do I have multiple filters, I have multiple inputs that I want to overlay. I usually have to them in 2-3 steps and wonder how to do it all in one command as it should be the most efficient way ?

  1 and 2 literally identical. For readability, I’ve cut out the actual filters which are very long and complicated.

  1. image slide in left onto video
  2. Take output of 1, image slide in right
  3. Take output 2, textbox image fade in

  4. Take output3, text fade in (finish)

     1)
     
     ffmpeg -i input.mp4 -loop 1 -i image.jpg -filter_complex \
     
           "[1]scale=640:-1[i0]; \
     
            [i0]drawbox=color=white:t=15[i1]; \
     
            [i1]format=,fade=[i2]; \
     
            [i2]rotate=[i3]; \
     
            [0][i3]overlay= \
     
     -c:v libx264 -vb 10M output1.mp4
     
     
     
     2)
     
     ffmpeg -i output1.mp4 -loop 1 -i image2.jpg -filter_complex \
     
           "[1]scale=[i0]; \
     
            [i0]drawbox=[i1]; \
     
            [i1]format=,fade=[i2]; \
     
            [i2]rotate=[i3]; \
     
            [0][i3]overlay=" \
     
     -c:v libx264 -vb 10M output2.mp4
     
     
     
     3)
     
     ffmpeg -i output2.mp4 -i image3.jpg -filter_complex \
     
           "[1]scale=1080:-1 [ovrl], \
     
            [ovrl]format=fade=[i]; \
     
            [0][i]overlay=" \
     
     -c:v libx264 -vb 10M output4.mp4
     
     
     
     
     
     4)
     
     ffmpeg -i output4.mp4 -filter_complex "drawtext=" -vb 10M finaloutput.mp4

• How can i live stream with ffmep only selected area of a video

  6 février 2020, par jack the disher

  I am using ffmpeg to livestream. Lets say my video is full size of the picture. But I want to people can see only red area. Is this possible ?

   @echo OFF
  
  Setlocal EnableDelayedExpansion
  
  
  
  : path to ffmpeg
  
  set ffmpeg=C:\FFmpeg\bin\ffmpeg.exe
  
  
  
  : path to ffmpeg
  
  set INPUT=C:\Users\Administrator\Desktop\videolar: encode video
  
  for %%i in (*.mp4) DO "%ffmpeg%" -re -i "%%i" -vcodec libx264 -preset veryfast -maxrate 2500k -bufsize 3368k -vf "format=yuv420p" -g 60 -acodec libmp3lame -b:a 198k -ar 44100 -metadata title="" -metadata artist="" -metadata album_artist="" -metadata album="" -metadata date="" -metadata track="" -metadata genre="" -metadata publisher="" -metadata encoded_by="" -metadata copyright="" -metadata composer="" -metadata performer="" -metadata TIT1="" -metadata TIT3="" -metadata disc="" -metadata TKEY="" -metadata TBPM="" -metadata language="eng" -metadata encoder="" -f flv -s 1280x720 "rtmps://live-api-s.facebook.com:443/rtmp/xxxx"

  example video . real video size is green area. i want to livestream red area without rendering