Function JxlDecoderRewind 

pub unsafe extern "C-unwind" fn JxlDecoderRewind(dec: *mut JxlDecoder)

Rewinds decoder to the beginning. The same input must be given again from the beginning of the file and the decoder will emit events from the beginning again. When rewinding (as opposed to JxlDecoderReset), the decoder can keep state about the image, which it can use to skip to a requested frame more efficiently with JxlDecoderSkipFrames. Settings such as parallel runner or subscribed events are kept. After rewind, JxlDecoderSubscribeEvents can be used again, and it is feasible to leave out events that were already handled before, such as JxlDecoderStatus::BasicInfo and JxlDecoderStatus::ColorEncoding, since they will provide the same information as before. The difference to JxlDecoderReset is that some state is kept, namely settings set by a call to

• JxlDecoderSetCoalescing,
• JxlDecoderSetDesiredIntensityTarget,
• JxlDecoderSetDecompressBoxes,
• JxlDecoderSetKeepOrientation,
• JxlDecoderSetUnpremultiplyAlpha,
• JxlDecoderSetParallelRunner,
• JxlDecoderSetRenderSpotcolors, and
• JxlDecoderSubscribeEvents.

Parameters

• dec: decoder object