umc/src/umc_video_data.cpp

// Copyright (c) 2017-2019 Intel Corporation
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

#include "umc_video_data.h"
#include "vm_debug.h"
#include "mfx_utils.h"

namespace UMC
{

// Number of planes in format description table.
// Number of planes in image can be greater. In this case additional
// planes should be supported by the user with functions SetPlanePointer,
// SetPlanePitch.
enum
{
    MAX_PLANE_NUMBER            = 4
};

// Color format description structure
struct ColorFormatInfo
{
    ColorFormat m_cFormat;
    int32_t m_iPlanes;        // Number of planes
    int32_t m_iMinBitDepth;   // Minimum bitdepth
    int32_t m_iMinAlign;      // Minimal required alignment in bytes
    struct {
        int32_t m_iWidthDiv;  // Horizontal downsampling factor
        int32_t m_iHeightDiv; // Vertical downsampling factor
        int32_t m_iChannels;  // Number of merged channels in the plane
        int32_t m_iAlignMult; // Alignment value multiplier
    } m_PlaneFormatInfo[MAX_PLANE_NUMBER];
};

// Color format description table
static
const
ColorFormatInfo FormatInfo[] =
{
    {YV12,    3,  8, 1, {{1, 1, 1, 2}, {2, 2, 1, 1}, {2, 2, 1, 1}}},
    {NV12,    2,  8, 2, {{1, 1, 1, 1}, {1, 2, 1, 1}, }},
    {YUY2,    1,  8, 2, {{2, 1, 4, 1}, }},
    {UYVY,    1,  8, 2, {{2, 1, 4, 1}, }},
    {YUV411,  3,  8, 1, {{1, 1, 1, 1}, {4, 1, 1, 1}, {4, 1, 1, 1}}},
    {YUV420,  3,  8, 1, {{1, 1, 1, 1}, {2, 2, 1, 1}, {2, 2, 1, 1}}},
    {YUV422,  3,  8, 1, {{1, 1, 1, 1}, {2, 1, 1, 1}, {2, 1, 1, 1}}},
    {YUV444,  3,  8, 1, {{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}}},
    {YUV_VC1, 3,  8, 1, {{1, 1, 1, 1}, {2, 2, 1, 1}, {2, 2, 1, 1}}},
    {Y411,    1,  8, 2, {{4, 1, 6, 1}}},
    {Y41P,    1,  8, 2, {{8, 1, 12, 1}}},
    {RGB32,   1,  8, 1, {{1, 1, 4, 1}}},
    {RGB24,   1,  8, 4, {{1, 1, 3, 1}}},
    {RGB565,  1, 16, 2, {{1, 1, 1, 1}}},
    {RGB555,  1, 16, 2, {{1, 1, 1, 1}}},
    {RGB444,  1, 16, 2, {{1, 1, 1, 1}}},
    {GRAY,    1,  8, 1, {{1, 1, 1, 1}}},
    {GRAYA,   2,  8, 1, {{1, 1, 1, 1}, {1, 1, 1, 1}}},
    {YUV420A, 4,  8, 1, {{1, 1, 1, 1}, {2, 2, 1, 1}, {2, 2, 1, 1}, {1, 1, 1, 1}}},
    {YUV422A, 4,  8, 1, {{1, 1, 1, 1}, {2, 1, 1, 1}, {2, 1, 1, 1}, {1, 1, 1, 1}}},
    {YUV444A, 4,  8, 1, {{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}}},
    {YVU9,    3,  8, 1, {{1, 1, 1, 1}, {4, 4, 1, 1}, {4, 4, 1, 1}}}
};

// Number of entries in the FormatInfo table
static
const
int32_t iNumberOfFormats = sizeof(FormatInfo) / sizeof(FormatInfo[0]);

// returns pointer to color format description table for cFormat
// or NULL if cFormat is not described (unknown color format).
static
const
ColorFormatInfo *GetColorFormatInfo(ColorFormat cFormat)
{
    const ColorFormatInfo *pReturn = NULL;
    int32_t i;

    // find required format
    for (i = 0; i < iNumberOfFormats; i += 1)
    {
        if (FormatInfo[i].m_cFormat == cFormat)
        {
            pReturn = FormatInfo + i;
            break;
        }
    }

    return pReturn;
} // ColorFormatInfo *GetColorFormatInfo(ColorFormat cFormat)

// Initialization to undefined image type
VideoData::VideoData(void)
{
    m_iAlignment = 1;
    m_pPlaneData = NULL;
    m_iPlanes = 0;
    m_ippSize.width = 0;
    m_ippSize.height = 0;
    m_ColorFormat = NONE;
    m_picStructure = PS_FRAME;

    // set square pixel
    m_iHorzAspect =
    m_iVertAspect = 1;

    m_pbAllocated = NULL;

} // VideoData::VideoData(void)

VideoData::~VideoData(void)
{
    Close();

} // VideoData::~VideoData(void)

// Release all possessed memory
Status VideoData::Close(void)
{
    if (m_pPlaneData)
        delete [] m_pPlaneData;

    m_pPlaneData = NULL;
    m_iPlanes = 0;

    return ReleaseImage();

} // Status VideoData::Close(void)

// Release image memory if it was owned
Status VideoData::ReleaseImage(void)
{
    int32_t i;
    for (i = 0; i < m_iPlanes; i++)
        m_pPlaneData[i].m_pPlane = NULL;

    if (m_pbAllocated)
        delete [] m_pbAllocated;

    m_pbAllocated = NULL;

    return MediaData::Close();

} // Status VideoData::ReleaseImage(void)

// Initializes image dimensions and bitdepth.
// Has to be followed by SetColorFormat call.
// Planes' information is initialized to invalid values
Status VideoData::Init(int32_t iWidth,
                       int32_t iHeight,
                       int32_t iPlanes,
                       int32_t iBitDepth)
{
    int32_t i;

    // check error(s)
    if ((0 >= iWidth) ||
        (0 >= iHeight) ||
        (0 >= iPlanes) ||
        (8 > iBitDepth))
        return UMC_ERR_INVALID_STREAM;

    // release object before initialization
    Close();

    // allocate plane info
    m_pPlaneData = new PlaneInfo[iPlanes];

    // fill plane info
    for (i = 0; i < iPlanes; i++)
    {
        m_pPlaneData[i].m_iSamples = 1;
        m_pPlaneData[i].m_iSampleSize = (iBitDepth+7)>>3;
        m_pPlaneData[i].m_iBitDepth = iBitDepth;
        m_pPlaneData[i].m_pPlane = NULL;
        m_pPlaneData[i].m_nMemSize = 0;
        // we can't set pitch without align value
        m_pPlaneData[i].m_nPitch = 0;
        m_pPlaneData[i].m_nOffset = 0;
        // can't assign dimension to unknown planes
        m_pPlaneData[i].m_ippSize.width = 0;
        m_pPlaneData[i].m_ippSize.height = 0;
    }

    m_iPlanes = iPlanes;
    m_ippSize.width = iWidth;
    m_ippSize.height = iHeight;

    return UMC_OK;

} // Status VideoData::Init(int32_t iWidth,

// Completely sets image information, without allocation or linking to
// image memory.
Status VideoData::Init(int32_t iWidth,
                       int32_t iHeight,
                       ColorFormat cFormat,
                       int32_t iBitDepth)
{
    Status umcRes;
    const ColorFormatInfo* pFormat;

    pFormat = GetColorFormatInfo(cFormat);
    if(NULL == pFormat)
        return UMC_ERR_INVALID_STREAM;

    // allocate planes
    if(iBitDepth == 0)
      iBitDepth = pFormat->m_iMinBitDepth;
    umcRes = Init(iWidth, iHeight, pFormat->m_iPlanes, iBitDepth);
    if (UMC_OK != umcRes)
        return umcRes;

    // set color format and
    // correct width & height for planes
    umcRes = SetColorFormat(cFormat);
    if (UMC_OK != umcRes)
        return umcRes;

    return UMC_OK;

} // Status VideoData::Init(int32_t iWidth,

// Sets or change Color format information for image, only when it has
// specified size, number of planes and bitdepth. Number of planes in cFormat must
// be not greater than specified in image.
Status VideoData::SetColorFormat(ColorFormat cFormat)
{
    int32_t i;
    const ColorFormatInfo *pFormat;

    // check error(s)
    pFormat = GetColorFormatInfo(cFormat);
    if (NULL == pFormat)
        return UMC_ERR_INVALID_STREAM;
    if (m_iPlanes < pFormat->m_iPlanes)
        return UMC_ERR_INVALID_STREAM;

    m_ColorFormat = cFormat;

    m_pPlaneData[0].m_nOffset = 0;

    // set correct width & height to planes
    for (i = 0; i < m_iPlanes; i += 1)
    {
        int32_t align, bpp;
        if(i>0) {
            m_pPlaneData[i].m_nOffset =
                m_pPlaneData[i-1].m_nOffset + m_pPlaneData[i-1].m_nMemSize;
        }
        if (i < pFormat->m_iPlanes)
        {
            m_pPlaneData[i].m_iWidthDiv = pFormat->m_PlaneFormatInfo[i].m_iWidthDiv;
            m_pPlaneData[i].m_iHeightDiv = pFormat->m_PlaneFormatInfo[i].m_iHeightDiv;
            m_pPlaneData[i].m_iSamples = pFormat->m_PlaneFormatInfo[i].m_iChannels;
        } else {
            m_pPlaneData[i].m_iWidthDiv = 1;
            m_pPlaneData[i].m_iHeightDiv = 1;
            m_pPlaneData[i].m_iSamples = 1;
        }
        if (m_pPlaneData[i].m_iWidthDiv != 1) {
            int sz = m_pPlaneData[i].m_iWidthDiv;
            m_pPlaneData[i].m_ippSize.width = (m_ippSize.width + sz - 1) / sz;
        } else {
            m_pPlaneData[i].m_ippSize.width = m_ippSize.width;
        }
        if (m_pPlaneData[i].m_iHeightDiv != 1) {
            int sz = m_pPlaneData[i].m_iHeightDiv;
            m_pPlaneData[i].m_ippSize.height = (m_ippSize.height + sz - 1) / sz;
        } else {
            m_pPlaneData[i].m_ippSize.height = m_ippSize.height;
        }
        bpp = m_pPlaneData[i].m_iSampleSize * m_pPlaneData[i].m_iSamples;
        align = std::max(m_iAlignment, bpp);
        if (i < pFormat->m_iPlanes) {
            // sometimes dimension of image may be not aligned to native size
            align = std::max(align, pFormat->m_iMinAlign);
            align *= pFormat->m_PlaneFormatInfo[i].m_iAlignMult;
        }
        m_pPlaneData[i].m_nPitch =
            mfx::align2_value(m_pPlaneData[i].m_ippSize.width * bpp, align);
        m_pPlaneData[i].m_nMemSize = m_pPlaneData[i].m_nPitch * m_pPlaneData[i].m_ippSize.height;
    }
    // special case, can't be completely covered by format table
    //if(cFormat == YV12) { // V than U
    //  size_t tmp = m_pPlaneData[1].m_nOffset;
    //  m_pPlaneData[1].m_nOffset = m_pPlaneData[2].m_nOffset;
    //  m_pPlaneData[2].m_nOffset = tmp;
    //}

    // for complexer cases, such as IMC2 or IMC4, need more manual changes here

    return UMC_OK;

} // Status VideoData::SetColorFormat(ColorFormat cFormat)


// Set common Alignment
Status VideoData::SetAlignment(int32_t iAlignment)
{
    // check alignment
    int32_t i;
    if(iAlignment <= 0)
        return UMC_ERR_INVALID_STREAM;
    for (i = 1; i < (1 << 16); i <<= 1) {
        if (i & iAlignment) {
            m_iAlignment = i;
            break; // stop at last nonzero bit
        }
    }

    if (i != iAlignment)
        return UMC_WRN_INVALID_STREAM;

    return UMC_OK;
}

// Allocates memory according to existing information in VideoData and given alignment
// If image memory was already allocated it is released.
// return UMC_OK on success, UMC_ERR_INVALID_STREAM if image is improperly described
Status VideoData::Alloc(size_t /* requiredSize */)
{
    size_t nSize;

    // Release previous buffer
    ReleaseImage();

    // get size of buffer to allocate
    nSize = GetMappingSize();
    if (0 == nSize)
        return UMC_ERR_INVALID_STREAM;

    // allocate buffer
    m_pbAllocated = new uint8_t[nSize + m_iAlignment - 1];

    // set pointer to image
    return SetBufferPointer(m_pbAllocated, nSize);

} // Status VideoData::Alloc()

// Links to provided image memory
// Image must be described before
Status VideoData::SetBufferPointer(uint8_t *pbBuffer, size_t nSize)
{
    int32_t i;
    size_t mapsize;
    uint8_t *ptr = align_pointer<uint8_t *>(pbBuffer, m_iAlignment);

    // check error(s)
    if (NULL == m_pPlaneData) {
        SetDataSize(0);
        return UMC_ERR_FAILED;
    }

    mapsize = GetMappingSize();
    if (nSize < mapsize) {
        SetDataSize(0);
        return UMC_ERR_NOT_ENOUGH_BUFFER;
    }

    // set new plane pointers
    if (m_pPlaneData)
    {
        uint8_t *tmp = ptr;
        for(i=0; i<m_iPlanes; i++) {
            m_pPlaneData[i].m_pPlane = tmp;
            tmp += m_pPlaneData[i].m_nMemSize;
        }
    }

    // call parent class methods
    MediaData::SetBufferPointer(pbBuffer, nSize);
    // set valid data size
    SetDataSize(mapsize + (ptr - pbBuffer));
    MoveDataPointer((int32_t)(ptr - pbBuffer));

    return UMC_OK;

} // Status VideoData::SetBufferPointer(uint8_t *pbBuffer, size_t nSize)

// Returns required image memory size according to alignment and current image description
size_t VideoData::GetMappingSize() const
{
    int32_t i;
    size_t size = 0;

    UMC_CHECK(m_pPlaneData, 0);

    for (i = 0; i < m_iPlanes; i++) {
      size += m_pPlaneData[i].m_nMemSize;
    }

    return size;

} // size_t VideoData::GetMappingSize(int32_t iAlignment)

// Set pointer for specified plane. Should be used for additional planes,
// or when image layout is different.
Status VideoData::SetPlanePointer(void *pDest, int32_t iPlaneNumber)
{
    // check error(s)
    if ((m_iPlanes <= iPlaneNumber) ||
        (0 > iPlaneNumber) ||
        (NULL == m_pPlaneData))
        return UMC_ERR_FAILED;

    m_pPlaneData[iPlaneNumber].m_pPlane = (uint8_t *) pDest;

    return UMC_OK;

} // Status VideoData::SetPlanePointer(void *pDest, int32_t iPlaneNumber)

Status VideoData::SetImageSize(int32_t width, int32_t height)
{
    // check error(s)
    if (NULL == m_pPlaneData)
        return UMC_ERR_FAILED;

    m_ippSize.width = width;
    m_ippSize.height = height;

    return UMC_OK;
}

// Set pitch for specified plane. Should be used for additional planes,
// or when image layout is different.
Status VideoData::SetPlanePitch(size_t nPitch, int32_t iPlaneNumber)
{
    // check error(s)
    if ((m_iPlanes <= iPlaneNumber) ||
        (0 > iPlaneNumber) ||
        (NULL == m_pPlaneData))
        return UMC_ERR_FAILED;

    m_pPlaneData[iPlaneNumber].m_nPitch = nPitch;
    m_pPlaneData[iPlaneNumber].m_nMemSize = nPitch * m_pPlaneData[iPlaneNumber].m_ippSize.height;

    return UMC_OK;

} // Status VideoData::SetPlanePitch(size_t nPitch, int32_t iPlaneNumber)

// Set bitdepth for specified plane, usually additional or when bitdepth differs
// for main planes
Status VideoData::SetPlaneBitDepth(int32_t iBitDepth, int32_t iPlaneNumber)
{
    // check error(s)
    if ((m_iPlanes <= iPlaneNumber) ||
        (0 > iPlaneNumber) ||
        (NULL == m_pPlaneData))
        return UMC_ERR_FAILED;

    m_pPlaneData[iPlaneNumber].m_iBitDepth = iBitDepth;
    if(m_pPlaneData[iPlaneNumber].m_iSampleSize*8 < iBitDepth)
        m_pPlaneData[iPlaneNumber].m_iSampleSize = (iBitDepth+7)>>3;

    return UMC_OK;

} // Status VideoData::SetPlaneBitDepth(int32_t iBitDepth, int32_t iPlaneNumber)

// Set sample size for specified plane, usually additional or when bitdepth differs
// for main planes
Status VideoData::SetPlaneSampleSize(int32_t iSampleSize, int32_t iPlaneNumber)
{
    // check error(s)
    if ((m_iPlanes <= iPlaneNumber) ||
        (0 > iPlaneNumber) ||
        (NULL == m_pPlaneData))
        return UMC_ERR_FAILED;

    m_pPlaneData[iPlaneNumber].m_iSampleSize = iSampleSize;
    if(iSampleSize*8 < m_pPlaneData[iPlaneNumber].m_iBitDepth)
        m_pPlaneData[iPlaneNumber].m_iBitDepth = iSampleSize*8;

    return UMC_OK;

} // Status VideoData::SetPlaneSampleSize(int32_t iSampleSize, int32_t iPlaneNumber)

// Links plane pointers to surface using provided pitch.
// All pitches and plane info are updated according to current
// color format.
// Supposes no gaps between planes.
Status VideoData::SetSurface(void* ptr, size_t nPitch)
{
    // check error(s)
    UMC_CHECK(ptr, UMC_ERR_NULL_PTR);
    UMC_CHECK(m_pPlaneData, UMC_ERR_NOT_INITIALIZED);

    if(nPitch == 0) // use current
      nPitch = m_pPlaneData[0].m_nPitch;

    m_pPlaneData[0].m_nOffset = 0;
    size_t size = 0;

    for (int i = 0; i < m_iPlanes; i++) {
      m_pPlaneData[i].m_nPitch = nPitch;
      if (i > 0) {
        m_pPlaneData[i].m_nPitch *= m_pPlaneData[i].m_iSamples*m_pPlaneData[0].m_iWidthDiv;
        m_pPlaneData[i].m_nPitch /= m_pPlaneData[i].m_iWidthDiv*m_pPlaneData[0].m_iSamples;
        m_pPlaneData[i].m_nOffset = m_pPlaneData[i - 1].m_nOffset + m_pPlaneData[i - 1].m_nMemSize;
      }
      m_pPlaneData[i].m_pPlane = (uint8_t*)ptr + m_pPlaneData[i].m_nOffset;
      m_pPlaneData[i].m_nMemSize = m_pPlaneData[i].m_nPitch * m_pPlaneData[i].m_ippSize.height;
      size += m_pPlaneData[i].m_nMemSize;
    }

    MediaData::SetBufferPointer((uint8_t*)ptr, size);

    return MediaData::SetDataSize(size);
}

#define PITCH_PREC  8

// Calculate pitch from mapping size
size_t VideoData::GetPitchFromMappingSize(size_t mappingSize) const
{
    size_t size = 0;
    int i;

    // check error(s)
    UMC_CHECK(m_pPlaneData, 0);

    // calculate mapping size for pitch equal to (1 << PITCH_PREC)
    size = m_pPlaneData[0].m_ippSize.height << PITCH_PREC;
    for (i = 1; i < m_iPlanes; i++) {
      size_t plane_size = m_pPlaneData[i].m_ippSize.height << PITCH_PREC;
      plane_size *= m_pPlaneData[i].m_iSamples*m_pPlaneData[0].m_iWidthDiv;
      plane_size /= m_pPlaneData[i].m_iWidthDiv*m_pPlaneData[0].m_iSamples;
      size += plane_size;
    }

    UMC_CHECK(size, 0);

    // calulate real pitch
    return ((mappingSize << PITCH_PREC)/size);
}

Status VideoData::ConvertPictureStructure(PictureStructure newPicStructure)
{
  PictureStructure curr = (PictureStructure)(m_picStructure & PS_FRAME);
  int k;

  vm_debug_trace2(VM_DEBUG_VERBOSE, VM_STRING("VideoData::ConvertPictureStructure %d->%d\n"), curr, newPicStructure);

  if (curr == PS_FRAME && newPicStructure == PS_TOP_FIELD) {
    m_ippSize.height >>= 1;
    for (k = 0; k < m_iPlanes; k++) {
      m_pPlaneData[k].m_ippSize.height >>= 1;
      m_pPlaneData[k].m_nPitch <<= 1;
    }
    curr = PS_TOP_FIELD;
  }

  if (curr == PS_TOP_FIELD && newPicStructure == PS_BOTTOM_FIELD) {
    for (k = 0; k < m_iPlanes; k++) {
      m_pPlaneData[k].m_pPlane += (m_pPlaneData[k].m_nPitch >> 1);
    }
    curr = PS_BOTTOM_FIELD;
  }

  if (curr == PS_BOTTOM_FIELD && (newPicStructure == PS_TOP_FIELD || newPicStructure == PS_FRAME)) {
    for (k = 0; k < m_iPlanes; k++) {
      m_pPlaneData[k].m_pPlane -= (m_pPlaneData[k].m_nPitch >> 1);
    }
    curr = PS_TOP_FIELD;
  }

  if (curr == PS_TOP_FIELD && newPicStructure == PS_FRAME) {
    m_ippSize.height <<= 1;
    for (k = 0; k < m_iPlanes; k++) {
      m_pPlaneData[k].m_ippSize.height <<= 1;
      m_pPlaneData[k].m_nPitch >>= 1;
    }
    curr = PS_FRAME;
  }

  return SetPictureStructure(curr /*| (m_picStructure &~ PS_FRAME)*/);
}

// fills PlaneInfo structure
Status VideoData::GetPlaneInfo(PlaneInfo* pInfo, int32_t iPlaneNumber)
{
    // check error(s)
    if (NULL == pInfo)
        return UMC_ERR_NULL_PTR;
    if ((m_iPlanes <= iPlaneNumber) ||
        (0 > iPlaneNumber) ||
        (NULL == m_pPlaneData))
        return UMC_ERR_FAILED;

    *pInfo = m_pPlaneData[iPlaneNumber];
    return UMC_OK;

} // Status VideoData::GetPlaneInfo(PlaneInfo* pInfo, int32_t iPlaneNumber)

// converts display aspect ratio to pixel AR
// or vise versa with exchanged width and height
Status DARtoPAR(int32_t width, int32_t height, int32_t dar_h, int32_t dar_v,
                int32_t *par_h, int32_t *par_v)
{
  // (width*par_h) / (height*par_v) == dar_h/dar_v =>
  // par_h / par_v == dar_h * height / (dar_v * width)
  int32_t simple_tab[] = {2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59};
  int32_t denom;
  size_t i;

  // suppose no overflow of 32s
  int32_t h = dar_h * height;
  int32_t v = dar_v * width;
  // remove common multipliers
  while( ((h|v)&1) == 0 ) {
    h>>=1;
    v>>=1;
  }

  for(i=0;i<sizeof(simple_tab)/sizeof(simple_tab[0]);i++) {
    denom = simple_tab[i];
    while(h%denom==0 && v%denom==0) {
      v /= denom;
      h /= denom;
    }
    if(v<=denom || h<=denom)
      break;
  }
  *par_h = h;
  *par_v = v;
  // can don't reach minimum, no problem
  if(i<sizeof(simple_tab)/sizeof(simple_tab[0]))
    return UMC_WRN_INVALID_STREAM;
  return UMC_OK;
}

// Crop
Status VideoData::Crop(UMC::sRECT CropArea)
{
  int left = CropArea.left;
  int top = CropArea.top;
  int right = CropArea.right;
  int bottom = CropArea.bottom;
  if (!right) right = m_ippSize.width;
  if (!bottom) bottom = m_ippSize.height;
  int w = right - left;
  int h = bottom - top;
  int k;

  UMC_CHECK(w > 0, UMC_ERR_INVALID_PARAMS);
  UMC_CHECK(h > 0, UMC_ERR_INVALID_PARAMS);
  UMC_CHECK(left >= 0, UMC_ERR_INVALID_PARAMS);
  UMC_CHECK(top >= 0, UMC_ERR_INVALID_PARAMS);
  UMC_CHECK(right <= m_ippSize.width, UMC_ERR_INVALID_PARAMS);
  UMC_CHECK(bottom <= m_ippSize.height, UMC_ERR_INVALID_PARAMS);

  for (k = 0; k < m_iPlanes; k++) {
    int wDiv = (m_pPlaneData[k].m_ippSize.width) ? m_ippSize.width/m_pPlaneData[k].m_ippSize.width : 1;
    int hDiv = (m_pPlaneData[k].m_ippSize.height) ? m_ippSize.height/m_pPlaneData[k].m_ippSize.height : 1;
    m_pPlaneData[k].m_pPlane += (top / hDiv) * m_pPlaneData[k].m_nPitch +
      (left / wDiv) * m_pPlaneData[k].m_iSamples * m_pPlaneData[k].m_iSampleSize;
    m_pPlaneData[k].m_ippSize.width = w / wDiv;
    m_pPlaneData[k].m_ippSize.height = h / hDiv;
  }
  m_ippSize.width = w;
  m_ippSize.height = h;

  return UMC_OK;
}

VideoData & VideoData::operator = (const VideoData &par)
{
    // check assignment for self
    if (this == &par)
    {
        return *this;
    }

    PlaneInfo *PlaneData = m_pPlaneData;
    if(m_iPlanes < par.m_iPlanes)
    {
        Close();
        PlaneData = new PlaneInfo[par.m_iPlanes];
    } else {
        ReleaseImage();
    }

    MediaData::operator=(par);

    std::copy(par.m_pPlaneData, par.m_pPlaneData + par.m_iPlanes, PlaneData);

    m_iPlanes      = par.m_iPlanes;
    m_ippSize      = par.m_ippSize;
    m_ColorFormat  = par.m_ColorFormat;
    m_picStructure = par.m_picStructure;
    m_iHorzAspect  = par.m_iHorzAspect;
    m_iVertAspect  = par.m_iVertAspect;
    m_iAlignment   = par.m_iAlignment;

    m_pPlaneData = PlaneData;

    m_pbAllocated = NULL;

    return *this;
}

} // end namespace UMC