我正在使用ImageMagick的iPhone端口。我想循环遍历动画gif的帧,并将每个帧转换为UIImage。我知道我可以使用NSData初始化UIImage,而我可以使用const void *初始化NSData。那么我该如何获取图像的缓冲区和长度?
以下是代码:
以下是代码:
MagickReadImage(wand, filename);
while(MagickHasNextImage(wand)) {
Image *myImage = GetImageFromMagickWand(wand);
//HELP ME PLEASE
const void *myBuff =myImage->blob; //guessing this is the right way to get the buffer?
int myLength = ????? //no idea how to get the length
NSData *myData = [[NSData alloc] initWithBytes:myBuff length:myLength];
UIImage myImage = [[UIImage alloc] initWithData:myData]];
MagickNextImage(wand);
}