Add loop option

Author: jclem

Changelog.md

@@ -4,6 +4,7 @@
 
 * Remove CloudApp uploading
 * Combine FPS and speed into a single flag
+* Add -l loop option
 
 ## 2015-03-25
 

README.md

@@ -44,6 +44,12 @@ gifify -r 60 recording.mov
 gifify -r 30@2 recording.mov
 ```
 
+- Convert it and output at 30 frames per second at 2x speed, with a single loop:
+
+```sh
+gifify -r 30@2 -l 1 recording.mov
+```
+
 ## Regarding framerates:
 
 GIF renderers typically cap the framerate somewhere between 60 and 100 frames

gifify.sh

@@ -9,6 +9,8 @@ function printHelpAndExit {
   echo 'Options: (all optional)'
   echo '  c CROP:      The x and y crops, from the top left of the image, i.e. 640:480'
   echo '  o OUTPUT:    The basename of the file to be output (default "output")'
+  echo '  l LOOP:      The number of times to loop the animnation. 0 (default)'
+  echo '               for infinity.'
   echo '  r FPS@SPEED: With [email protected], output at 60FPS at a speed of 1.5x the'
   echo '               source material. NOTE: It is best to keep FPSxSPEED'
   echo '               below approximately 60.'
@@ -22,16 +24,18 @@ function printHelpAndExit {
 
 crop=
 output=
+loop=0
 fpsspeed='10@1'
 scale=
 
 OPTERR=0
 
-while getopts 'c:o:p:r:s:' opt; do
+while getopts 'c:o:l:p:r:s:' opt; do
   case $opt in
     c) crop=$OPTARG;;
     h) printHelpAndExit 0;;
     o) output=$OPTARG;;
+    l) loop=$OPTARG;;
     r) fpsspeed=$OPTARG;;
     p) scale=$OPTARG;;
     *) printHelpAndExit 1;;
@@ -86,5 +90,5 @@ delay=$(bc -l <<< "100/$fps/$speed")
 temp=$(mktemp /tmp/tempfile.XXXXXXXXX)
 
 ffmpeg -loglevel panic -i "$filename" $filter -r $fps -f image2pipe -vcodec ppm - >> $temp
-cat $temp | convert +dither -layers Optimize -delay $delay - "${output}.gif"
+cat $temp | convert +dither -layers Optimize -loop $loop -delay $delay - "${output}.gif"
 echo "${output}.gif"