CMJ2DecMT Class Reference

Simple implementation of a Multi-Threaded CMJ2Dec. More...

#include <iMJ2Dec.h>

Inheritance diagram for CMJ2DecMT:

Collaboration diagram for CMJ2DecMT:

Public Member Functions
	CMJ2DecMT (BOOL bInterlaced, BOOL bMT, DWORD dwIdealProcessor, const GUID *pOEM_LIC)
	Constructor.
	~CMJ2DecMT ()
	Destructor.
virtual int	prepare (JPEG2000INFOHEADER2 *jp2, int argc, char **argv, BYTE *in, int in_size, int in_width, int in_height, DWORD in_fcc, int in_bits, BYTE *out, int out_size, int out_ofs, int out_row, int out_width, int out_height, DWORD out_fcc, int out_bits)
	Prepare 1st field or frame decoding in a multi-threaded operation (bMT was TRUE when passed to constructor CMJ2DecMT()).
virtual int	decode (JPEG2000INFOHEADER2 *jp2, int argc, char **argv, BYTE *in, int in_size, int in_width, int in_height, DWORD in_fcc, int in_bits, BYTE *out, int out_size, int out_ofs, int out_row, int out_width, int out_height, DWORD out_fcc, int out_bits)
	Decode 1 frame/field or 2 frames/fields.
virtual int	sync ()
	Wait for completion of 1st field or frame decoding in a multi-threaded operation (bMT was TRUE when passed to constructor CMJ2DecMT()).
Private Attributes
CMJ2DecT *	m_pSlave
	Slave CMJ2DecT driven by CMJ2DecMT.

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Detailed Description

Simple implementation of a Multi-Threaded CMJ2Dec.

If bMT is TRUE:

• This class decodes 2 fields or 2 frames in a multi-threaded operation. The 1st one on a thread running on another CPU and the 2nd one on the CPU running the current thread.

If bMT is FALSE:

• It decodes a single frame or field on the current thread.

Remarks:

bMT is passed to constructor CMJ2DecMT().

The calling sequence in a multi-threaded operation is :

• prepare()
• decode()
• sync()

Examples:

jp2_decodeMT.cpp.

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Constructor & Destructor Documentation

CMJ2DecMT::CMJ2DecMT (  BOOL  bInterlaced, BOOL  bMT, DWORD  dwIdealProcessor, const GUID *  pOEM_LIC )  [inline]

Constructor. Parameters: bInterlaced  Interlace decoding flag (see IMJ2Dec()). bMT  Multi-threaded operation flag (see above). dwIdealProcessor  Ideal Processor for 1st field/frame decoding in multi-threaded operation (see CMJ2DecT()). pOEM_LIC  Pointer to the OEM license GUID (&OEM_LIC).

CMJ2DecMT::~CMJ2DecMT (   )  [inline]

Destructor.

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Member Function Documentation

virtual int CMJ2DecMT::prepare (  JPEG2000INFOHEADER2 *  jp2, int  argc, char **  argv, BYTE *  in, int  in_size, int  in_width, int  in_height, DWORD  in_fcc, int  in_bits, BYTE *  out, int  out_size, int  out_ofs, int  out_row, int  out_width, int  out_height, DWORD  out_fcc, int  out_bits )  [inline, virtual]

Prepare 1st field or frame decoding in a multi-threaded operation (bMT was TRUE when passed to constructor CMJ2DecMT()). Parameters: see  IMJ2Dec::decode(). Returns: 0 on success. -1 if bMT was FALSE when passed to constructor CMJ2DecMT(). Examples: jp2_decodeMT.cpp.

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virtual int CMJ2DecMT::decode (  JPEG2000INFOHEADER2 *  jp2, int  argc, char **  argv, BYTE *  in, int  in_size, int  in_width, int  in_height, DWORD  in_fcc, int  in_bits, BYTE *  out, int  out_size, int  out_ofs, int  out_row, int  out_width, int  out_height, DWORD  out_fcc, int  out_bits )  [inline, virtual]

Decode 1 frame/field or 2 frames/fields. Parameters: see  IMJ2Dec::decode(). If bMT was FALSE when passed to constructor CMJ2DecMT(): Decode 1 frame or field. If bMT was TRUE when passed to constructor CMJ2DecMT(): Decode 2 frames or 2 fields in a multi-threaded operation. Returns: If bMT was FALSE: The number of bytes red in the input codestream. If bMT was TRUE: The number of bytes red in the input codestream of 2nd field or frame. Reimplemented from IMJ2Dec. Examples: jp2_decodeMT.cpp.

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virtual int CMJ2DecMT::sync (   )  [inline, virtual]

Wait for completion of 1st field or frame decoding in a multi-threaded operation (bMT was TRUE when passed to constructor CMJ2DecMT()). Returns: The number of bytes red in the input codestream of the 1st field or frame decoded. 0 if bMT was FALSE when passed to constructor CMJ2DecMT(). Examples: jp2_decodeMT.cpp.

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Field Documentation

CMJ2DecT* CMJ2DecMT::m_pSlave [private]

Slave CMJ2DecT driven by CMJ2DecMT.

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

• iMJ2Dec.h

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