mp4dec.h

这是在PCA下的基于IPP库示例代码例子,在网上下了IPP的库之后,设置相关参数就可以编译该代码.

/* ///////////////////////////////////////////////////////////////////////
//
//               INTEL CORPORATION PROPRIETARY INFORMATION
//  This software is supplied under the terms of a license agreement or
//  nondisclosure agreement with Intel Corporation and may not be copied
//  or disclosed except in accordance with the terms of that agreement.
//        Copyright (c) 2001-2005 Intel Corporation. All Rights Reserved.
//
//  Description:    MPEG-4 header.
//
*/


#ifndef _MP4DEC_H_
#define _MP4DEC_H_

#ifdef __cplusplus
extern "C" {
#endif


//#ifdef __INTEL_COMPILER
//#include <emmintrin.h>
//#define USE_INTRINSIC_EMM
//#else
#undef USE_INTRINSIC_XMM
#undef USE_INTRINSIC_EMM
//#endif

#define USE_TABLE_INTRA_DIV

#define mp4_Div2(a) ((a) >= 0 ? ((a) >> 1) : (((a)+1) >> 1))
#define mp4_Div2Round(a) (((a) >> 1) | ((a) & 1))
#define mp4_DivRoundInf(a, b) ((((a) + (((a) >= 0) ? ((b) >> 1) : -((b) >> 1))) / (b)))
#ifndef USE_TABLE_INTRA_DIV
#define mp4_DivIntraDC(a, b) (((a) + ((b) >> 1)) / (b))
#define mp4_DivIntraAC(a, b) mp4_DivRoundInf(a, b)
#else
// tested on (-2047..2047) // (1..46)
#define mp4_DivIntraDC(a, b) (((a) * mp4_DivIntraDivisor[b] + (1 << 17)) >> 18)
#define mp4_DivIntraAC(a, b) mp4_DivIntraDC(a, b)
#endif


__INLINE Ipp16s mp4_Median(Ipp16s a, Ipp16s b, Ipp16s c)
{
    if (a > b) {
        Ipp16s  t = a; a = b; b = t;
    }
    return (Ipp16s)((b <= c) ? b : (c >= a) ? c : a);
}

__INLINE void mp4_ComputeChromaMV(const IppMotionVector *mvLuma, IppMotionVector *mvChroma)
{
    mvChroma->dx = (Ipp16s)mp4_Div2Round(mvLuma->dx);
    mvChroma->dy = (Ipp16s)mp4_Div2Round(mvLuma->dy);
}

__INLINE void mp4_ComputeChromaMVQ(const IppMotionVector *mvLuma, IppMotionVector *mvChroma)
{
    int  dx, dy;

    dx = mp4_Div2(mvLuma->dx);
    dy = mp4_Div2(mvLuma->dy);
    mvChroma->dx = (Ipp16s)mp4_Div2Round(dx);
    mvChroma->dy = (Ipp16s)mp4_Div2Round(dy);
}

__INLINE void mp4_ComputeChroma4MV(const IppMotionVector mvLuma[4], IppMotionVector *mvChroma)
{
    int  dx, dy, cdx, cdy, adx, ady;

    dx = mvLuma[0].dx + mvLuma[1].dx + mvLuma[2].dx + mvLuma[3].dx;
    dy = mvLuma[0].dy + mvLuma[1].dy + mvLuma[2].dy + mvLuma[3].dy;
    adx = abs(dx);
    ady = abs(dy);
    cdx = mp4_cCbCrMvRound16[adx & 15] + (adx >> 4) * 2;
    cdy = mp4_cCbCrMvRound16[ady & 15] + (ady >> 4) * 2;
    mvChroma->dx = (Ipp16s)((dx >= 0) ? cdx : -cdx);
    mvChroma->dy = (Ipp16s)((dy >= 0) ? cdy : -cdy);
}

__INLINE void mp4_ComputeChroma4MVQ(const IppMotionVector mvLuma[4], IppMotionVector *mvChroma)
{
    int  dx, dy, cdx, cdy, adx, ady;

    dx = mp4_Div2(mvLuma[0].dx) + mp4_Div2(mvLuma[1].dx) + mp4_Div2(mvLuma[2].dx) + mp4_Div2(mvLuma[3].dx);
    dy = mp4_Div2(mvLuma[0].dy) + mp4_Div2(mvLuma[1].dy) + mp4_Div2(mvLuma[2].dy) + mp4_Div2(mvLuma[3].dy);
    adx = abs(dx);
    ady = abs(dy);
    cdx = mp4_cCbCrMvRound16[adx & 15] + (adx >> 4) * 2;
    cdy = mp4_cCbCrMvRound16[ady & 15] + (ady >> 4) * 2;
    mvChroma->dx = (Ipp16s)((dx >= 0) ? cdx : -cdx);
    mvChroma->dy = (Ipp16s)((dy >= 0) ? cdy : -cdy);
}


#define limitMV(dx, xmin, xmax, mvd) \
{ \
    if ((dx) < (xmin)) \
        mvd = (Ipp16s)(xmin); \
    else if ((dx) >= (xmax)) \
        mvd = (Ipp16s)(xmax); \
    else \
        mvd = (Ipp16s)(dx); \
}


__INLINE void mp4_LimitMV(const IppMotionVector *pSrcMV, IppMotionVector *pDstMV, const IppiRect *limitRect, int x, int y, int size)
{
    limitMV(pSrcMV->dx, (limitRect->x - x) << 1, (limitRect->x - x + limitRect->width  - size) << 1, pDstMV->dx);
    limitMV(pSrcMV->dy, (limitRect->y - y) << 1, (limitRect->y - y + limitRect->height - size) << 1, pDstMV->dy);
}


__INLINE void mp4_LimitMVQ(const IppMotionVector *pSrcMV, IppMotionVector *pDstMV, const IppiRect *limitRect, int x, int y, int size)
{
    limitMV(pSrcMV->dx, (limitRect->x - x) << 2, (limitRect->x - x + limitRect->width  - size) << 2, pDstMV->dx);
    limitMV(pSrcMV->dy, (limitRect->y - y) << 2, (limitRect->y - y + limitRect->height - size) << 2, pDstMV->dy);
}

__INLINE void mp4_Limit4MV(const IppMotionVector *pSrcMV, IppMotionVector *pDstMV, const IppiRect *limitRect, int x, int y, int size)
{
    mp4_LimitMV(&pSrcMV[0], &pDstMV[0], limitRect, x       , y,        size);
    mp4_LimitMV(&pSrcMV[1], &pDstMV[1], limitRect, x + size, y,        size);
    mp4_LimitMV(&pSrcMV[2], &pDstMV[2], limitRect, x       , y + size, size);
    mp4_LimitMV(&pSrcMV[3], &pDstMV[3], limitRect, x + size, y + size, size);
}

__INLINE void mp4_Limit4MVQ(const IppMotionVector *pSrcMV, IppMotionVector *pDstMV, const IppiRect *limitRect, int x, int y, int size)
{
    mp4_LimitMVQ(&pSrcMV[0], &pDstMV[0], limitRect, x       , y,        size);
    mp4_LimitMVQ(&pSrcMV[1], &pDstMV[1], limitRect, x + size, y,        size);
    mp4_LimitMVQ(&pSrcMV[2], &pDstMV[2], limitRect, x       , y + size, size);
    mp4_LimitMVQ(&pSrcMV[3], &pDstMV[3], limitRect, x + size, y + size, size);
}

__INLINE void mp4_LimitFMV(const IppMotionVector *pSrcMV, IppMotionVector *pDstMV, const IppiRect *limitRect, int x, int y, int size)
{
    limitMV(pSrcMV->dx, (limitRect->x - x) << 1, (limitRect->x - x + limitRect->width  - size) << 1, pDstMV->dx);
    limitMV(pSrcMV->dy << 1, (limitRect->y - y) << 1, (limitRect->y - y + limitRect->height - size) << 1, pDstMV->dy);
    pDstMV->dy >>= 1;
}

__INLINE void mp4_LimitFMVQ(const IppMotionVector *pSrcMV, IppMotionVector *pDstMV, const IppiRect *limitRect, int x, int y, int size)
{
    limitMV(pSrcMV->dx, (limitRect->x - x) << 2, (limitRect->x - x + limitRect->width  - size) << 2, pDstMV->dx);
    limitMV(pSrcMV->dy << 1, (limitRect->y - y) << 2, (limitRect->y - y + limitRect->height - size) << 2, pDstMV->dy);
    pDstMV->dy >>= 1;
}


#define MP4_MV_OFF_HP(dx, dy, step) \
    (((dx) >> 1) + (step) * ((dy) >> 1))

#define MP4_MV_ACC_HP(dx, dy) \
    ((((dy) & 1) << 1) + ((dx) & 1))

#define MP4_MV_OFF_QP(dx, dy, step) \
    (((dx) >> 2) + (step) * ((dy) >> 2))

#define MP4_MV_ACC_QP(dx, dy) \
    ((((dy) & 3) << 2) + ((dx) & 3))

#define mp4_Copy8x4HP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy8x4HP_8u_C1R(pSrc + MP4_MV_OFF_HP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_HP((mv)->dx, (mv)->dy), rc)

#define mp4_Copy8x8HP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy8x8HP_8u_C1R(pSrc + MP4_MV_OFF_HP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_HP((mv)->dx, (mv)->dy), rc)

#define mp4_Copy16x8HP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy16x8HP_8u_C1R(pSrc + MP4_MV_OFF_HP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_HP((mv)->dx, (mv)->dy), rc)

#define mp4_Copy16x16HP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy16x16HP_8u_C1R(pSrc + MP4_MV_OFF_HP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_HP((mv)->dx, (mv)->dy), rc)

#define mp4_Copy8x8QP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy8x8QP_MPEG4_8u_C1R(pSrc + MP4_MV_OFF_QP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_QP((mv)->dx, (mv)->dy), rc)

#define mp4_Copy16x8QP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy16x8QP_MPEG4_8u_C1R(pSrc + MP4_MV_OFF_QP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_QP((mv)->dx, (mv)->dy), rc)

#define mp4_Copy16x16QP_8u(pSrc, srcStep, pDst, dstStep, mv, rc) \
    ippiCopy16x16QP_MPEG4_8u_C1R(pSrc + MP4_MV_OFF_QP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_QP((mv)->dx, (mv)->dy), rc)

#define mp4_Add8x8HP_16s8u(pSrc, srcStep, pResid, pDst, dstStep, mv, rc) \
    ippiAdd8x8HP_16s8u_C1RS(pResid, 16, pSrc + MP4_MV_OFF_HP((mv)->dx, (mv)->dy, srcStep), srcStep, pDst, dstStep, MP4_MV_ACC_HP((mv)->dx, (mv)->dy), rc)

#define mp4_Add8x8_16s8u(pSrcDst, pResid, srcDstStep) \
    ippiAdd8x8_16s8u_C1IRS(pResid, 16, pSrcDst, srcDstStep)


#define mp4_UpdateQuant(pInfo, quant) \
{ \
    quant += mp4_dquant[mp4_GetBits9(pInfo, 2)]; \
    mp4_CLIP(quant, 1, (1 << pInfo->VisualObject.VideoObject.quant_precision) - 1); \
}


#define mp4_UpdateQuant_B(pInfo, quant) \
if (mp4_GetBit(pInfo) != 0) { \
    quant += (mp4_GetBit(pInfo) == 0) ? -2 : 2; \
    mp4_CLIP(quant, 1, (1 << pInfo->VisualObject.VideoObject.quant_precision) - 1); \
}


__INLINE void mp4_Set8x8_8u(Ipp8u *p, int step, Ipp8u v)
{
#if defined(USE_INTRINSIC_XMM) || defined(USE_INTRINSIC_EMM)
    __m64 _p_v = _mm_set1_pi8(v);
    *(__m64*)p = _p_v;
    *(__m64*)(p+step) = _p_v;
    p += 2 * step;
    *(__m64*)p = _p_v;
    *(__m64*)(p+step) = _p_v;
    p += 2 * step;
    *(__m64*)p = _p_v;
    *(__m64*)(p+step) = _p_v;
    p += 2 * step;
    *(__m64*)p = _p_v;
    *(__m64*)(p+step) = _p_v;
    _mm_empty();
#else
    Ipp32u val;

    val = v + (v << 8);
    val += val << 16;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val; p += step;
    ((Ipp32u*)p)[0] = val; ((Ipp32u*)p)[1] = val;
#endif
}


__INLINE void mp4_Set16x16_8u(Ipp8u *p, int step, Ipp8u val)
{
    int    i, j;

    for (i = 0; i < 16; i ++) {
        for (j = 0; j < 16; j ++)
            p[j] = val;
        p += step;
    }
}


#if defined(USE_INTRINSIC_XMM) || defined(USE_INTRINSIC_EMM)

#define mp4_Zero4MV(mv) \
    memset(mv, 0, 4 * sizeof(IppMotionVector));

#if defined(USE_INTRINSIC_XMM)

#define mp4_Zero64_16s(pDst) \
{ \
    __m64 _p_zero = _mm_setzero_si64(); \
    ((__m64*)(pDst))[0] = _p_zero; \
    ((__m64*)(pDst))[1] = _p_zero; \
    ((__m64*)(pDst))[2] = _p_zero; \
    ((__m64*)(pDst))[3] = _p_zero; \
    ((__m64*)(pDst))[4] = _p_zero; \
    ((__m64*)(pDst))[5] = _p_zero; \
    ((__m64*)(pDst))[6] = _p_zero; \
    ((__m64*)(pDst))[7] = _p_zero; \
    ((__m64*)(pDst))[8] = _p_zero; \
    ((__m64*)(pDst))[9] = _p_zero; \
    ((__m64*)(pDst))[10] = _p_zero; \
    ((__m64*)(pDst))[11] = _p_zero; \
    ((__m64*)(pDst))[12] = _p_zero; \
    ((__m64*)(pDst))[13] = _p_zero; \
    ((__m64*)(pDst))[14] = _p_zero; \
    ((__m64*)(pDst))[15] = _p_zero; \
    _m_empty(); \
}

#define mp4_Set64_16s(val, pDst) \
{ \
    __m64 _p_val = _mm_set1_pi16((Ipp16s)(val)); \
    ((__m64*)(pDst))[0] = _p_val; \
    ((__m64*)(pDst))[1] = _p_val; \
    ((__m64*)(pDst))[2] = _p_val; \
    ((__m64*)(pDst))[3] = _p_val; \
    ((__m64*)(pDst))[4] = _p_val; \
    ((__m64*)(pDst))[5] = _p_val; \
    ((__m64*)(pDst))[6] = _p_val; \
    ((__m64*)(pDst))[7] = _p_val; \
    ((__m64*)(pDst))[8] = _p_val; \
    ((__m64*)(pDst))[9] = _p_val; \
    ((__m64*)(pDst))[10] = _p_val; \
    ((__m64*)(pDst))[11] = _p_val; \
    ((__m64*)(pDst))[12] = _p_val; \
    ((__m64*)(pDst))[13] = _p_val; \
    ((__m64*)(pDst))[14] = _p_val; \
    ((__m64*)(pDst))[15] = _p_val; \
    _m_empty(); \
}

#elif defined(USE_INTRINSIC_EMM)

#define mp4_Zero64_16s(pDst) \
{ \
    __m128i _p_val = _mm_setzero_si128(); \
    ((__m128i*)(pDst))[0] = _p_val; \
    ((__m128i*)(pDst))[1] = _p_val; \
    ((__m128i*)(pDst))[2] = _p_val; \
    ((__m128i*)(pDst))[3] = _p_val; \
    ((__m128i*)(pDst))[4] = _p_val; \
    ((__m128i*)(pDst))[5] = _p_val; \
    ((__m128i*)(pDst))[6] = _p_val; \
    ((__m128i*)(pDst))[7] = _p_val; \
}

#define mp4_Set64_16s(val, pDst) \
{ \
    __m128i _p_val = _mm_set1_epi16((Ipp16s)(val)); \
    ((__m128i*)(pDst))[0] = _p_val; \
    ((__m128i*)(pDst))[1] = _p_val; \
    ((__m128i*)(pDst))[2] = _p_val; \
    ((__m128i*)(pDst))[3] = _p_val; \
    ((__m128i*)(pDst))[4] = _p_val; \
    ((__m128i*)(pDst))[5] = _p_val; \
    ((__m128i*)(pDst))[6] = _p_val; \
    ((__m128i*)(pDst))[7] = _p_val; \
}

#endif

#else

#define mp4_Zero4MV(mv) \
    (mv)[0].dx = (mv)[0].dy = (mv)[1].dx = (mv)[1].dy = (mv)[2].dx = (mv)[2].dy = (mv)[3].dx = (mv)[3].dy = 0

#define mp4_Zero64_16s(pDst) \
{ \
    int  i; \
    for (i = 0; i < 32; i += 8) { \
        ((Ipp32u*)(pDst))[i] = 0; \
        ((Ipp32u*)(pDst))[i+1] = 0; \
        ((Ipp32u*)(pDst))[i+2] = 0; \
        ((Ipp32u*)(pDst))[i+3] = 0; \
        ((Ipp32u*)(pDst))[i+4] = 0; \
        ((Ipp32u*)(pDst))[i+5] = 0; \
        ((Ipp32u*)(pDst))[i+6] = 0; \
        ((Ipp32u*)(pDst))[i+7] = 0; \
    } \
}

#define mp4_Set64_16s(val, pDst) \
{ \
    int     i; \
    Ipp32u  v; \
    v = ((val) << 16) + (Ipp16u)(val); \
    for (i = 0; i < 32; i += 8) { \
        ((Ipp32u*)(pDst))[i] = v; \
        ((Ipp32u*)(pDst))[i+1] = v; \
        ((Ipp32u*)(pDst))[i+2] = v; \
        ((Ipp32u*)(pDst))[i+3] = v; \
        ((Ipp32u*)(pDst))[i+4] = v; \