Documentation
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Overview ¶
Package png provides animated PNG image format support for deanimator.
Index ¶
Constants ¶
This section is empty.
Variables ¶
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var DecodeFunc = gopng.Decode
DecodeFunc lets you override the built-in PNG package decode if desired.
Functions ¶
func IsAnimated ¶
IsAnimated returns true if the reader is an animated PNG (APNG). A false result with no error indicates the buffer definitively contains a normal PNG.
func RenderFirstFrame ¶
RenderFirstFrame extracts the first frame from an animated PNG (APNG). If the image is not complete, it scans the image, stripping non-public chunks while checking wether a complete default image is available (e.g. the start of an "fcTL" chunk after 1 or more "IDAT" chunks). If the complete default image can be extracted, it terminates the image with an "IEND" chunk.
Types ¶
This section is empty.
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