Am 05.04.2021 um 01:48 schrieb Cecil Westerhof via ffmpeg-user:
I have to cut out a part of a video, crop it and blackout two parts.
I do this with:
     ffmpeg -y                                      \
            -ss 00:19:49                            \
            -i  2021-03-25ToastmastersClubAvond.mp4 \
            -to 442                                 \
            -vf "
                 crop = 1440:1080:240:0
                 ,
                 drawbox=enable='between(t, 0, 2)'     :
                    color     = black                  :
                    w         = in_w                   :
                    h         = in_h                   :
                    thickness = fill
                 ,
                 drawbox=enable='between(t, 339, 342)' :
                    color     = black                  :
                    w         = in_w                   :
                    h         = in_h                   :
                    thickness = fill
            "                                       \
            -acodec copy                            \
            -vcodec libx264                         \
            -crf    23                              \
            speechClean2.mp4

The reason I do -to in the output is that in this way the metadata
concerning the video length is less out of whack.

I was wondering if this is a good way, or that it could be done
better?
Also, beside the timestamps the parameters for drawbox are the same.
Is there a way that I do not have to repeat them?

drawbox=enable='bitor(between(t, 0, 2),between(t, 339, 342))'

Michael

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