How much data required to determine image format and dimensions?

Roughsketch / imagesize

Quickly probe the size of various image formats without reading the entire file.

MIT License

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How much data required to determine image format and dimensions? #5

Closed katyo closed 5 years ago

katyo commented 5 years ago

I tried to use this awesome lib with image data from streams. Because the image data incomplete I need a way to get "not enough data" error or know how much bytes of header required to determine. I think this case quite differs from CorruptedImage or NotSupported.

katyo commented 5 years ago

As I understand when not enough data provided I get IO Error of kind UnexpectedEof. But it isn't so for too short headers because image_type() returns ImageType::Unknown (not error).

Roughsketch commented 5 years ago

Closed since #6 was merged. Thanks.