// Xvid_dec.cpp: implementation of the CXvid_dec class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
//#include "Mp4app.h"
#include "Xvid_dec.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CXvid_dec::CXvid_dec()
{

}

CXvid_dec::~CXvid_dec()
{

}


BOOL CXvid_dec::Init(int x,int y,int color_space)
{
	int xerr;

	m_cx=x;
	m_cy=y;
	m_colorspace=color_space;

	XVID_INIT_PARAM xinit;
	XVID_DEC_PARAM xparam;

	xinit.cpu_flags = 0;

	xvid_init(NULL, 0, &xinit, NULL);
	xparam.width  = x;
	xparam.height = y;

	xerr = xvid_decore(NULL, XVID_DEC_CREATE, &xparam, NULL);
	m_dec_handle = xparam.handle;

	return TRUE;
}

BOOL CXvid_dec::Decode(unsigned char * istream,unsigned char * outbuffer,int istream_size,int outbuffer_pitch)
{
	int xerr;
	XVID_DEC_FRAME xframe;

	xframe.bitstream = istream;
	xframe.length = istream_size;
	xframe.image = outbuffer;
	xframe.stride = outbuffer_pitch;
	xframe.colorspace = m_colorspace;             

	BOOL rs = TRUE;
	__try {
		xerr = xvid_decore(m_dec_handle, XVID_DEC_DECODE, &xframe, NULL);
	}

	__except (EXCEPTION_EXECUTE_HANDLER) {
		rs = FALSE;
	}

	return rs;
}

BOOL CXvid_dec::Close()
{
	int xerr;
    xerr = xvid_decore(m_dec_handle, XVID_DEC_DESTROY, NULL, NULL);

	return TRUE;
}