add gif compression #2
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Sending stickers from efb via telegram to WeChat often encounters errors like the one shown below. These errors mostly occur with animated stickers. Other user have such reports too.
After investigating, I found that these errors are likely due to WeChat's limit of 1 MB for GIF files used as stickers. Reducing the scale of the GIF can help reduce the file size, which is the main approach I took.
在微信发表情贴图经常会出错,错误信息如下,也有别人反馈
这类型错误主要是因为微信对表情贴图的GIF文件大小有1M的限制。这个PR中我主要是通过降低GIF的分辨率来缩小文件,来尽可能避免这种错误。