[FFmpeg-user] blend filter

[Paul B Mahol]

On 6/9/19, Michael Koch <astroelectronic at t-online.de> wrote:
> Hi,
>
> in the documentation for the blend filter is written:
> "By default, the output terminates when the longest input terminates."
>
> What's used as input when the shortest input has terminated? Is the last
> frame of the shorter input duplicated?

Yes.

> Is there a trick to let the output terminate when the shortest input
> terminates?


Yes. See framesync options: also ffmpeg -h filter=blend


>
> Thanks,
> Michael
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