[FFmpeg-trac] #8823(avfilter:new): vf_xfade interaction with other filters makes it stop early

[FFmpeg]

#8823: vf_xfade interaction with other filters makes it stop early
-------------------------------------+------------------------------------
             Reporter:  legraphista  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by legraphista):

 I'll cross-post this here too, as after this comment ticket:8824#comment:3
 clarified that both inputs have to have the same FPS as well as same TB,
 this example still reproduces the above issue even with both inputs at
 60fps:
 {{{
 ffmpeg -f lavfi -i testsrc=r=60:d=5 -f lavfi -i testsrc=r=60:d=5
 -filter_complex "
         [1:v] setpts=PTS-STARTPTS,settb=AVTB,hue=90 [v1];
         [0:v] setpts=PTS-STARTPTS,settb=AVTB [v0];
         [v0][v1] xfade=duration=0.5:transition=wipeleft:offset=4.5
 " test.mp4 -y
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8823#comment:3>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker