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      1 #!/bin/sh
      2 # Copyright 2017 Google Inc.
      3 #
      4 # Use of this source code is governed by a BSD-style license that can be
      5 # found in the LICENSE file.
      6 
      7 # Create a 3 second long animation from the Raster output of fiddle at 15 fps.
      8 FPS=15
      9 DURATION=3
     10 FRAMES=$((DURATION * FPS))
     11 mkdir -p /tmp/animation
     12 for i in $(seq -f "%05g" 0 $FRAMES)
     13 do
     14     ./out/Release/fiddle --duration $DURATION --frame `bc -l <<< "$i/$FRAMES"` | ./tools/fiddle/parse-fiddle-output
     15     cp /tmp/fiddle_Raster.png /tmp/animation/image-"$i".png
     16 done
     17 cd /tmp/animation; ffmpeg -r $FPS -pattern_type glob -i '*.png' -c:v libvpx-vp9 -lossless 1 output.webm
     18