Is it correct that the "displace" filter allows only displacements in the [-128 ... +127] range? Michael
On 2/3/20, Michael Koch <astroelectronic@t-online.de> wrote:
Is it correct that the "displace" filter allows only displacements in the [-128 ... +127] range?
It works only with 8bit pixel formats, so yes. Locally I have warp filter, which works by specifying 2D warp points for distortion, thus not needing to use slow and cumbersome geq filter.
Michael
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Am 04.02.2020 um 11:53 schrieb Paul B Mahol:
On 2/3/20, Michael Koch <astroelectronic@t-online.de> wrote:
Is it correct that the "displace" filter allows only displacements in the [-128 ... +127] range?
It works only with 8bit pixel formats, so yes.
Locally I have warp filter, which works by specifying 2D warp points for distortion, thus not needing to use slow and cumbersome geq filter.
Would be nice to add that to FFmpeg. I've just added some examples (with geq filter) to my book. http://www.astro-electronic.de/FFmpeg_Book.pdf Michael
participants (2)
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Michael Koch -
Paul B Mahol