HRESULT 0x88982F46 (WINCODEC_ERR_CODECTOOMANYSCANLINES): meaning

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: WINCODEC_ERR_CODECTOOMANYSCANLINES too many scanlines were requested.

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WINCODEC_ERR_PALETTEUNAVAILABLE	WINCODEC_ERR_INTERNALERROR

WINCODEC_ERR_CODECTOOMANYSCANLINES

WINCODEC_ERR_CODECTOOMANYSCANLINES means that the caller requested more scanlines than the selected WIC codec can provide for the current image or operation. The usual cause is a height, rectangle, stride, or incremental decode calculation that exceeds the decoded frame bounds.

What to inspect

Obtain the frame size from WIC and validate the requested top row and row count against it.
When calculating a destination buffer, keep row count, stride and byte size separate; a correct buffer size does not make an out-of-range source rectangle valid.
For progressive or region-based processing, ensure that each request advances within the codec's supported range.

Log the source dimensions and requested rectangle in addition to the HRESULT.

Microsoft: WIC bitmap sources

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