mrmBot-Matrix/natives/togif.cc

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#include <vips/vips8>
#include "common.h"
using namespace std;
using namespace vips;
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char *ToGif(string *type, char *BufferData, size_t BufferLength,
ArgumentMap Arguments, size_t *DataSize) {
if (*type == "gif") {
*DataSize = BufferLength;
char *data = (char *)malloc(BufferLength);
memcpy(data, BufferData, BufferLength);
return data;
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} else {
VOption *options = VImage::option()->set("access", "sequential");
VImage in = VImage::new_from_buffer(
BufferData, BufferLength, "",
*type == "webp" ? options->set("n", -1) : options);
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void *buf;
in.write_to_buffer(".gif", &buf, DataSize);
*type = "gif";
return (char *)buf;
}
}