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• Rescalling and Reposition images in FFMPEG in a video #2

  9 février 2021, par najam ulhassan

  I am trying to achieve this result using Mobile-FFMPEG :
  


  


  using following command :

  


  E/COMMAND :

  


  ffmpeg -y -loop 1 -t 10 -i /storage/emulated/0/InvitationTemp/image.png -s 991x903
-loop 1 -i /storage/emulated/0/InvitationTemp/image_0.png 
-loop 1 -i /storage/emulated/0/InvitationTemp/image_1.png 
-loop 1 -i /storage/emulated/0/InvitationTemp/image_2.png 
-loop 1 -i /storage/emulated/0/InvitationTemp/image_3.png 
-loop 1 -i /storage/emulated/0/InvitationTemp/image_4.png 
-filter_complex 
    
[1]scale=eval=frame:w='min(292/2,298/2)':h='min(292/2,298/2)',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=0:d=1:alpha=1[img1];  [2]scale=eval=frame:w='min(258/2,322/2)':h='min(258/2,322/2)',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=1:d=2:alpha=1[img2];
[3]scale=eval=frame:w='min(240/2,218/2)':h='min(240/2,218/2)',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=2:d=3:alpha=1[img3]; [4]scale=eval=frame:w='min(290/2,320/2)':h='min(290/2,320/2)',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=3:d=4:alpha=1[img4]; [5]scale=eval=frame:w='min(425/2,91/2)':h='min(425/2,91/2)',rotate=a=0*PI/180:c=black@0:oh='roth(0*PI/180)':ow='rotw(0*PI/180)':bilinear=1,fade=in:st=4:d=5:alpha=1[img5];
[0][img1]overlay=137:341:shortest=1:format=auto[bg1];
[bg1][img2]overlay=609:74:shortest=1:format=auto[bg2];
[bg2][img3]overlay=432:325:shortest=1:format=auto[bg3];
[bg3][img4]overlay=700:579:shortest=1:format=auto[bg4];
[bg4][img5]overlay=92:786:shortest=1:format=auto,format=yuv420p /storage/emulated/0/InvitationEventVideos/video_2021_Feb_09_09_39_38.mp4


  


  But I am receiving this output... Failing to rescale and repositions propertly my png's.

  


  https://www.youtube.com/watch?v=EIJEPIHTcio

  


• Video Editing with Python : other transitions than crossfade

  11 février 2018, par Jay D.

  I am trying to make various transitions effects for a video-editing python script.

  Moviepy allows me to do crossfades and fades to black, but I would like a bit more diversity to transitions.

  I was thinking about : wipes, blurry wipes, blurs to black and crossblurs. All quite simple transisions types that you can find in basic video editing softwares like Windows Movie Maker.

  Examples of these transitions can be found at :
  https://www.dailymotion.com/video/x6ekx70

  Do you know any solutions ?

  Current research :

  I looked at ffmpeg but I didn t saw a single tutorial online for transitions other than crossfades & fades to black.

  The closest thing I found to my search is MLT Multimedia Framework with "Luma" patterns, working example at : https://youtu.be/t1KV6gy92i0?t=28s

  MLT has python bidings : https://github.com/mltframework/mlt/tree/master/src/swig/python

  But I have absolutely no idea how to implement those "Luma" patterns transitions in a python script.

• how to set effect on video in android programmatically ?

  23 août 2017, par Mayank Sugandhi

  I have video which is save in sdcard, now i want to apply the effect like black and white and etc. it’s functionality like editing in video which is already in photo editor or video editor applications.

  now i want to that functionality in android programmatically ? when user choose black and white color in option then it should be response very quickly and change the effect of our video and save it sdcard.

  i have find some solution for this like,

  https://github.com/krazykira/VidEffects 

  but it has not save functionality of video and if i go through in
  "FFMPEG" library then it is not responding very quickly ?

  how can i change the effect of video and save this video in sdcard ?

  Thank You