Thanks for the prompt response :-) A follow up on Q2. On Fri, Sep 27, 2024 at 9:51 PM Michael Koch <astroelectro...@t-online.de> wrote:
> Am 27.09.2024 um 13:37 schrieb Bram van Oosterhout: > > The expression for x (third parameter in crop: 960*t ) contains > > a variable t. > > [Q2] What is t. I am unable to find it in the documentation. > > It's described in the documentation: > https://www.ffmpeg.org/ffmpeg-all.html#crop > t is the timestamp expressed in seconds. > Thanks for the reference and... my IMG_8048.JPG has only one timestamp: 2024:04:11 18:46:26. /tmp/On6Ub.JPGdoes not have a timestamp: file /tmp/On6Ub.JPG /tmp/On6Ub.JPG: JPEG image data, baseline, precision 8, 4423x1080, components 3 [Q2.1] So why does t vary? [Q2.2] And with what start and interval? > > > [Q3] Is t related to the framerate? > > no. > > > [Q4] There are other magic numbers(?) in various web posts (like: n). > > Where are they documented? > > at the same place as above. > > Michael > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
