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25 lines
358 B
Go
25 lines
358 B
Go
package imageSize
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import (
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"io"
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)
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func DecodeGifMeta(r io.Reader) (*Meta, error) {
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var tmp [10]byte
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_, err := io.ReadFull(r, tmp[:])
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if err != nil {
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return nil, err
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}
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return &Meta{
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Format: "gif",
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Width: int(tmp[6]) + int(tmp[7])<<8,
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Height: int(tmp[8]) + int(tmp[9])<<8,
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}, nil
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}
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func init() {
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RegisterFormat("GIF8?a", DecodeGifMeta)
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}
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