/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - Initial contribution

*

* Contributors:

* Ixonos Plc

*

* Description:

*

*/

#ifdef CHECK_MV_RANGE

#include <stdio.h>

#endif

#include "globals.h"

#include "motcomp.h"

#include "framebuffer.h"

#if defined(USE_CLIPBUF) && !defined(AVC_MOTION_COMP_ASM)

#include "clipbuf.h"

#endif

#define ONEFOURTH1  20

#define ONEFOURTH2  -5

#define ONEFOURTH3  1

static const int numModeMotVecs[MOT_NUM_MODES+1] = {

  0, 1, 2, 2, 4, 8, 8, 16

};

static const int numModeMotVecs8x8[4] = {

  1, 2, 2, 4

};

/*

static const int blockShapes[][2] = {

  {4, 4},

  {4, 2},

  {2, 4},

  {2, 2}

};

static const int blockShapes8x8[][2] = {

  {2, 2},

  {2, 1},

  {1, 2},

  {1, 1}

};

*/

#ifdef CHECK_MV_RANGE

extern int maxVerticalMvRange;

#endif

/*

 *

 * mcpGetNumMotVecs:

 *

 * Parameters:

 *      mode                  MB partition type (16x16, 8x16, 16x8, 8x8)

 *      subMbTypes            Sub-MB partition types (8x8, 4x8, 8x4, 4x4)

 *

 * Function:

 *      Get the number of motion vectors that need to be decoded for given

 *      MB type and Sub-MB partition types.

 *      

 * Returns:

 *      Number of motion vectors.

 *

 */

int mcpGetNumMotVecs(int interMode, int subMbTypes[4])

{

  int numVecs;

  if (interMode < MOT_8x8)

    numVecs = numModeMotVecs[interMode];

  else {

    numVecs  = numModeMotVecs8x8[subMbTypes[0]];

    numVecs += numModeMotVecs8x8[subMbTypes[1]];

    numVecs += numModeMotVecs8x8[subMbTypes[2]];

    numVecs += numModeMotVecs8x8[subMbTypes[3]];

  }

  return numVecs;

}