我有一个充满图像的目录,我想变成一个gif.
每个文件名遵循以下模式：< zero_padded_index> _< delay_in_milliseconds> .gif
示例：00001_1432.gif
我可以用imagemagick创建gif动画：convert -loop 0 -delay 10 * .gif out.gif
问题是,我希望每个帧根据其名称中的第二个数字有不同的延迟.
convert -delay 0 -loop 0 *.gif output.gif
for gif in *.gif; do
name=${gif%.gif}
index=$(echo ${name%-*} | sed 's/0*//')
delay=${name#*-}
# 1. convert milliseconds to w/e imagemagick -delay uses.
# 2. update the frame at the correct index.
done;
我是否逐步建立gif？还是回去改变事后呢？
我的imagemagick剁不符合标准.
所以如果我正在接近这个问题,我会做以下(如果我明白了)
给出以下文件：
[root@dev7 ~]# ls -lta so/ total 728 drwxr-xr-x 2 root root 4096 Aug 13 18:35 . dr-xr-x---. 17 root root 4096 Aug 13 18:35 .. -rw-r--r-- 1 root root 18933 Aug 13 18:23 00007_1432.gif -rw-r--r-- 1 root root 18594 Aug 13 18:23 00006_1432.gif -rw-r--r-- 1 root root 18984 Aug 13 18:23 00005_1432.gif -rw-r--r-- 1 root root 19601 Aug 13 18:23 00004_1444.gif -rw-r--r-- 1 root root 19408 Aug 13 18:23 00003_1432.gif -rw-r--r-- 1 root root 18632 Aug 13 18:23 00002_1552.gif -rw-r--r-- 1 root root 20104 Aug 13 18:23 00001_1432.gif [root@dev7 ~]#
我的脚本将如下所示：
#!/bin/bash -x
# directory of the individual gifs
_dir=/root/so/
# get gifs and make sure your sort them in order
gifs=$(find $_dir -name *.gif|sort|xargs)
# this is going to be the imagemagick command
_CONVERT="convert "
# make sure the list of gifs look correct
echo $gifs
for gif in $gifs; do
# full path of each gif
full_path=$gif
# get just the name of the gif ( originally I was going to use this if everything was happing within the same directory )
name=$(echo ${gif##*/})
#echo -e "\n$name"
# Get the index
index=$(echo ${gif##*/} | cut -d\_ -f1)
#echo -e "\n$index"
# Get the delay of the current image
delay=$(echo ${gif##*/} | cut -d\_ -f2| sed "s,.gif,")
# echo -e "\n$delay"
# add correct delay options to current gif,append to existing command
_CONVERT="${_CONVERT} -delay $delay $gif "
done;
# add the outpt of where you're going to put your gif
_CONVERT="${_CONVERT} -loop 0 -layers Optimize /root/so/stackoverflow.gif"
# show full command
echo "Convert cmd: $_CONVERT"
# run it,then go get your image
eval $_CONVERT
生成的命令示例：
Convert cmd: convert -delay 1432 /root/so/00001_1432.gif -delay 1552 /root/so/00002_1552.gif -delay 1432 /root/so/00003_1432.gif -delay 1444 /root/so/00004_1444.gif -delay 1432 /root/so/00005_1432.gif -delay 1432 /root/so/00006_1432.gif -delay 1432 /root/so/00007_1432.gif -layers Optimize /root/so/stackoverflow.gif
希望这是你正在寻找的.
