[FFmpeg-user] filters zoompan and crop

Jim DeLaHunt list+ffmpeg-user at jdlh.com
Tue Oct 30 05:40:25 EET 2018

On 2018-10-29 01:38, Paul B Mahol wrote:
> On 10/29/18, Jim DeLaHunt <list+ffmpeg-user at jdlh.com> wrote:
>> My experience with the *zoompan* filter is that the /in/ parameter 
>> (input frame number) is 2 for the first frame, rather than 0 as is 
>> usual for ffmpeg. I think that this is partly a bug (see 
>> <https://trac.ffmpeg.org/ticket/7242>). Partly this appears to be a 
>> design decision by the original developer, to use cardinal numbers 
>> instead of ordinal numbers. 
> That bug have long be fixed in master branch. I just closed it.

Yay! That's great to hear!  I see it was fixed in June 2018.

I'm glad the bug report is now marked as closed also. That should help 
spread the word about the fix.

I am in favour of the documentation changing to better describe the 
current behaviour. I may submit a patch if no-one beats me to it.

     --Jim DeLaHunt, jdlh at jdlh.com     http://blog.jdlh.com/ (http://jdlh.com/)
       multilingual websites consultant

       355-1027 Davie St, Vancouver BC V6E 4L2, Canada
          Canada mobile +1-604-376-8953

More information about the ffmpeg-user mailing list