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Re: Feeding video data to Imager

by zentara (Archbishop)
on Mar 27, 2006 at 12:37 UTC ( #539437=note: print w/replies, xml ) Need Help??

in reply to Feeding video data to Imager

Is this still the best way to do it? It seems awkward that the mighty Imager wouldn't allow feeding it RGB data directly.

I chose to do it that way, because I thought it was faster than the direct way which Imager allows, which is matrix transformation. Read "perldoc Imager::Transformations, where the following matrix method is shown

# Swap red/green channel $new = $img->convert(matrix=>[ [ 0, 1, 0 ], [ 1, 0, 0 ], [ 0, 0, 1 ] ]);
but, I think you will find that reversing is faster, although it will only work for swapping R and B, plus you need to invert it afterwards. But let us know, if you find otherwise.

I'm not really a human, but I play one on earth. flash japh

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[choroba]: Doesn't vertical bar work in MSWin?
[RonW]: Why not ytdl >data then ffmpeg <data ?
[RonW]: (I use Windows as little as possible)
[LanX]: RonW: yes I think something like inline::Rperl would be great, but Will is AFAIK not interested to go that way
[james28909]: well now i am using a for /f delims= %i IN(yt-dl) do set var=%i & ffmpeg -i "%var%" -a:c mp3 output.mp3 & set var=
[james28909]: just to get around not being able to do yt-dl | ffmpeg
[james28909]: learning is fun ISNT IT?!?!!??

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