thank you for the quick answer when trying this out I notice 3 things
*1: the original size is kept* if the starting crop is *crop=h=100 *then using *c crop -1 h 150 *dose noting and the other way, using *c crop -1 h 50 *leaves the actual pixel dimentions at 100 but the lower portion is transparent. So you can't change the actual dimentions with a command? is the a filter i should use after crop to accomplish this? *2: c crop w dosen't work* *c crop -1 h 100 *crop height to 100 but *c crop -1 w 100 *stil returns a full width image but crops to 1 pixel in height i also tried *c crop -1 w ih *and that returns a full width and dosnt crop the height but *c crop -1 w ih-1 *also crops to 1 pixel in height *3: can't set w and h at the same time* using *c drawtext -1 reinit fontcolor=red:text='test' *works but i can't figur out how to do the same with crop *c crop -1 h 50 : w 50 * returns: [Parsed_crop_2 @ 000001dde3ffaa80] [Eval @ 00000005a89fdd80] Invalid chars ':w50' at the end of expression '50 : w 50' [Parsed_crop_2 @ 000001dde3ffaa80] Error when evaluating the expression '50 : w 50' Command reply for stream 0: ret:-22 res: i tried a a few combinations with no luck *@Michael *i agree that the doc could be a bit cleare. as you can see i got my idears from the only example i could find and that was from drawtext. vh Alex On Sat, Jul 3, 2021 at 3:12 PM Michael Koch <astroelectro...@t-online.de> wrote: > Am 03.07.2021 um 15:06 schrieb Michael Koch: > > Hi Gyan, > > > >> > >> As the docs state, the acceptable commands are w, h, x, ,y > >> > >> so the syntax is > >> > >> c crop -1 w 100 > >> > > > > Is this documented somewhere? I mean typing "c" in the console while > > FFmpeg is running. > > I know that you mentioned it on stackoverflow some time ago, but I > > never found it in the FFmpeg docs. > > > > > https://stackoverflow.com/questions/56058909/ffmpeg-drawtext-and-live-coordinates-with-sendcmd-zmq > > > > > > I think it should be added to chapter 34 in FFmpeg-all.html, "Changing > > options at runtime with a command". > > P.S. In the same chapter could also be mentioned that two other methods > exist: sendcmd and zmq. > > 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".
