Utility class for decoding JPEG-Data streams (with ICL_HAVE_LIBJPEG only) More...

Static Public Member Functions
static void	decode (utils::File &file, core::ImgBase **dst) throw (utils::InvalidFileFormatException)
	Decode JPEG-File (E.g. used for FileGrabberPluginJPEG)
static void	decode (const unsigned char data, unsigned int maxDataLen, core::ImgBase *dst)
	Decode a data stream (E.g. used for Decoding Motion-JPEG streams in unicap's DefaultConvertEngine)
Static Private Member Functions
static void	decode_internal (utils::File file, const unsigned char data, unsigned int maxDataLen, core::ImgBase **dst) throw (utils::InvalidFileFormatException)
	internal utility function, which does all the work

Detailed Description

Utility class for decoding JPEG-Data streams (with ICL_HAVE_LIBJPEG only)

Member Function Documentation

static void icl::io::JPEGDecoder::decode	(	utils::File &	file,
		core::ImgBase **	dst
	)		throw (utils::InvalidFileFormatException) `[static]`

Decode JPEG-File (E.g. used for FileGrabberPluginJPEG)

Parameters:

file	must be opened in mode readBinary or not opend
dst	image, which is adapted to the found image parameters

static void icl::io::JPEGDecoder::decode	(	const unsigned char *	data,
		unsigned int	maxDataLen,
		core::ImgBase **	dst
	)		`[static]`

Decode a data stream (E.g. used for Decoding Motion-JPEG streams in unicap's DefaultConvertEngine)

Parameters:

data	jpeg data stream (must be valid, otherwise unpredictable behaviour occurs
maxDataLen	length of the given data pointer Note:This is just an upper limit to avoid segmentation faults on corrupted jpeg data (e.g. end-of-image-marker is missing). The given data pointer can be much longer then the actual jpeg data. If that is the case, libjpeg obviously reads only necessary bytes.
dst	destination image, which is adapted to the found images parameters

static void icl::io::JPEGDecoder::decode_internal	(	utils::File *	file,
		const unsigned char *	data,
		unsigned int	maxDataLen,
		core::ImgBase **	dst
	)		throw (utils::InvalidFileFormatException) `[static, private]`

internal utility function, which does all the work

The documentation for this class was generated from the following file:

/home/jenkins/workspace/icl-manual-trunk/icl-manual/ICLIO/src/ICLIO/JPEGDecoder.h