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• blank video with external picture and fade in effect

  3 janvier 2018, par Jklf

  I want to create a 5 seconds video with a picture in the middle that appears with a fade-in effect.

  ffmpeg -f lavfi -i color=c=black:s=640x360:d=5 -i logo.png -filter_complex "[1:v]fade=in:0:30[a];[a][0:v]scale2ref=oh*mdar:ih/2[2nd][ref];[ref][2nd]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2"  output5.mp4

  But the picture never appears, instead if I remove the fadIn property the picture appears but without the effect.

• Révision 17156 : en fait non, il vaut mieux utilise word-wrap:break-word ; en css, et pas du tout ...

  11 février 2011, par BoOz -

• Revision 3c42657207 : Checking scale factors on access. It is possible to have invalid scale factors

  23 août 2013, par Dmitry Kovalev

  Changed Paths :
   Modify /vp9/common/vp9_reconinter.c

  
   Modify /vp9/common/vp9_scale.c

  
   Modify /vp9/common/vp9_scale.h

  
   Modify /vp9/decoder/vp9_decodframe.c

  
   Modify /vp9/encoder/vp9_temporal_filter.c

  
  
  Checking scale factors on access.

  It is possible to have invalid scale factors and not access them
  during decoding. Error is reported if we really try to use invalid scale
  factors.

  Change-Id : Ie532d3ea7325ee0c7a6ada08269f804350c80fdf