[FFmpeg-trac] #10803(ffmpeg:open): Concat filter not working (was: Concat filter not working combined with -ss/-to)

[FFmpeg]

#10803: Concat filter not working
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             Reporter:  Marth64      |                    Owner:  (none)
                 Type:  defect       |                   Status:  open
             Priority:  critical     |                Component:  ffmpeg
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Changes (by Gyan):

 * priority:  normal => critical
 * status:  new => open
 * component:  undetermined => ffmpeg
 * summary:  Concat filter not working combined with -ss/-to => Concat
     filter not working

Comment:

 Reproduced. This bug is not contingent on using `-ss/-to/-t`

 It can be reproduced with

 {{{
 ffmpeg -i in1.mkv -i in2.mkv
 -filter_complex
  "[0:v:0]trim=0:2[v0];[0:a:0]atrim=0:2[a0];
   [1:v:0]trim=2:4,setpts=PTS-STARTPTS[v1];[1:a:0]atrim=2:4,asetpts=PTS-
 STARTPTS[a1];
   [v0][a0][v1][a1]concat=n=2:v=1:a=1[concat_v][concat_a]"
 -map '[concat_v]' -map '[concat_a]' test.mp4
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10803#comment:1>
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