[FFmpeg-trac] #6959(undetermined:closed): Concat images only makes 3 frames with -filter_complex
FFmpeg
trac at avcodec.org
Fri Jan 12 02:00:12 EET 2018
#6959: Concat images only makes 3 frames with -filter_complex
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Reporter: mattaias | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: concat | Resolution: invalid
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Changes (by cehoyos):
* status: new => closed
* resolution: => invalid
Comment:
Your command line still looks very convoluted, I also believe that in any
case, you should only use one instance of `setpts`. The `pix_fmt` options
are useless afaict, you know already that the input option `r` does not
help for your usecase. I would expect that the `color` filter is unneded,
pad defaults to black iirc.
I just tested the following command line for three input images, the
second one had a different resolution than first and third:
{{{
$ ffmpeg -i image1 -i image2 -i image3 -filter_complex
[1:v]scale=s=320x240,setsar=1[t2],[0:v][t2][2:v]concat=n=3,setpts=2*N/TB
-r 25 out.mov
}}}
`2*N` implies two seconds per frame.
I hope this helps to simplify (and speed up) your command line, feel free
to ask additional questions on the user mailing list.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6959#comment:5>
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