2020-02-20 08:39:09 +11:00
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#!/bin/bash
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###############################
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# ECHOMIX #
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###############################
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SRCDIR="Fist"
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DSTDIR="Pong"
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FTMP="/dev/shm/tmp.fimg"
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FDST="/dev/shm/foo.fimg"
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# ------------------------------------------------------------
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# count the nomber of picz in the source directory
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#
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NBRE=$(ls -1 ${SRCDIR}/*.fimg | wc -l)
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# compute the echo picz offset
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#
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OFFS=$(( NBRE / 4 ))
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# ------------------------------------------------------------
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# MAIN LOOP
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for idx in $(seq 0 $NBRE)
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do
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# build the two input filenames ...
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#
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imgA=$(printf "$SRCDIR/%04d.fimg" $idx)
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vb=$(( $(( idx + OFFS )) % NBRE))
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imgB=$(printf "$SRCDIR/%04d.fimg" $vb)
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2020-02-21 11:34:07 +11:00
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# ... and the output filename
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2020-02-20 08:39:09 +11:00
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#
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dst=$(printf "%s/%05d.png" ${DSTDIR} $idx)
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printf " %20s %20s %8df %20s\n" $imgA $imgB $vb $dst
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# trying to autocompute the mixing coefficient
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#
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compute=" s(${idx} / 16) "
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K=$(echo $compute | bc -l)
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printf " %25s => %8.3f\n" "$compute" $K
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# do the hard floating computation
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#
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fimgfx -v cos010 ${imgB} ${FTMP}
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fimgops -k ${K} ${FTMP} ${imgA} mix ${FDST}
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# write the output as PNG for video encoding
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#
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fimg2png ${FDST} ${dst}
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done
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# ------------------------------------------------------------
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