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libbpg-0.9.6

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King_DuckZ 2015-10-27 11:46:00 +01:00
parent 3035b41edf
commit 35a8402710
248 changed files with 232891 additions and 100 deletions
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x265/source/common/slice.cpp Normal file
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/*****************************************************************************
* Copyright (C) 2015 x265 project
*
* Authors: Steve Borho <steve@borho.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
*
* This program is also available under a commercial proprietary license.
* For more information, contact us at license @ x265.com.
*****************************************************************************/
#include "common.h"
#include "frame.h"
#include "piclist.h"
#include "picyuv.h"
#include "slice.h"
using namespace X265_NS;
void Slice::setRefPicList(PicList& picList)
{
if (m_sliceType == I_SLICE)
{
memset(m_refFrameList, 0, sizeof(m_refFrameList));
memset(m_refReconPicList, 0, sizeof(m_refReconPicList));
memset(m_refPOCList, 0, sizeof(m_refPOCList));
m_numRefIdx[1] = m_numRefIdx[0] = 0;
return;
}
Frame* refPic = NULL;
Frame* refPicSetStCurr0[MAX_NUM_REF];
Frame* refPicSetStCurr1[MAX_NUM_REF];
Frame* refPicSetLtCurr[MAX_NUM_REF];
int numPocStCurr0 = 0;
int numPocStCurr1 = 0;
int numPocLtCurr = 0;
int i;
for (i = 0; i < m_rps.numberOfNegativePictures; i++)
{
if (m_rps.bUsed[i])
{
refPic = picList.getPOC(m_poc + m_rps.deltaPOC[i]);
refPicSetStCurr0[numPocStCurr0] = refPic;
numPocStCurr0++;
}
}
for (; i < m_rps.numberOfNegativePictures + m_rps.numberOfPositivePictures; i++)
{
if (m_rps.bUsed[i])
{
refPic = picList.getPOC(m_poc + m_rps.deltaPOC[i]);
refPicSetStCurr1[numPocStCurr1] = refPic;
numPocStCurr1++;
}
}
X265_CHECK(m_rps.numberOfPictures == m_rps.numberOfNegativePictures + m_rps.numberOfPositivePictures,
"unexpected picture in RPS\n");
// ref_pic_list_init
Frame* rpsCurrList0[MAX_NUM_REF + 1];
Frame* rpsCurrList1[MAX_NUM_REF + 1];
int numPocTotalCurr = numPocStCurr0 + numPocStCurr1 + numPocLtCurr;
int cIdx = 0;
for (i = 0; i < numPocStCurr0; i++, cIdx++)
rpsCurrList0[cIdx] = refPicSetStCurr0[i];
for (i = 0; i < numPocStCurr1; i++, cIdx++)
rpsCurrList0[cIdx] = refPicSetStCurr1[i];
for (i = 0; i < numPocLtCurr; i++, cIdx++)
rpsCurrList0[cIdx] = refPicSetLtCurr[i];
X265_CHECK(cIdx == numPocTotalCurr, "RPS index check fail\n");
if (m_sliceType == B_SLICE)
{
cIdx = 0;
for (i = 0; i < numPocStCurr1; i++, cIdx++)
rpsCurrList1[cIdx] = refPicSetStCurr1[i];
for (i = 0; i < numPocStCurr0; i++, cIdx++)
rpsCurrList1[cIdx] = refPicSetStCurr0[i];
for (i = 0; i < numPocLtCurr; i++, cIdx++)
rpsCurrList1[cIdx] = refPicSetLtCurr[i];
X265_CHECK(cIdx == numPocTotalCurr, "RPS index check fail\n");
}
for (int rIdx = 0; rIdx < m_numRefIdx[0]; rIdx++)
{
cIdx = rIdx % numPocTotalCurr;
X265_CHECK(cIdx >= 0 && cIdx < numPocTotalCurr, "RPS index check fail\n");
m_refFrameList[0][rIdx] = rpsCurrList0[cIdx];
}
if (m_sliceType != B_SLICE)
{
m_numRefIdx[1] = 0;
memset(m_refFrameList[1], 0, sizeof(m_refFrameList[1]));
}
else
{
for (int rIdx = 0; rIdx < m_numRefIdx[1]; rIdx++)
{
cIdx = rIdx % numPocTotalCurr;
X265_CHECK(cIdx >= 0 && cIdx < numPocTotalCurr, "RPS index check fail\n");
m_refFrameList[1][rIdx] = rpsCurrList1[cIdx];
}
}
for (int dir = 0; dir < 2; dir++)
for (int numRefIdx = 0; numRefIdx < m_numRefIdx[dir]; numRefIdx++)
m_refPOCList[dir][numRefIdx] = m_refFrameList[dir][numRefIdx]->m_poc;
}
void Slice::disableWeights()
{
for (int l = 0; l < 2; l++)
for (int i = 0; i < MAX_NUM_REF; i++)
for (int yuv = 0; yuv < 3; yuv++)
{
WeightParam& wp = m_weightPredTable[l][i][yuv];
wp.bPresentFlag = false;
wp.log2WeightDenom = 0;
wp.inputWeight = 1;
wp.inputOffset = 0;
}
}
/* Sorts the deltaPOC and Used by current values in the RPS based on the
* deltaPOC values. deltaPOC values are sorted with -ve values before the +ve
* values. -ve values are in decreasing order. +ve values are in increasing
* order */
void RPS::sortDeltaPOC()
{
// sort in increasing order (smallest first)
for (int j = 1; j < numberOfPictures; j++)
{
int dPOC = deltaPOC[j];
bool used = bUsed[j];
for (int k = j - 1; k >= 0; k--)
{
int temp = deltaPOC[k];
if (dPOC < temp)
{
deltaPOC[k + 1] = temp;
bUsed[k + 1] = bUsed[k];
deltaPOC[k] = dPOC;
bUsed[k] = used;
}
}
}
// flip the negative values to largest first
int numNegPics = numberOfNegativePictures;
for (int j = 0, k = numNegPics - 1; j < numNegPics >> 1; j++, k--)
{
int dPOC = deltaPOC[j];
bool used = bUsed[j];
deltaPOC[j] = deltaPOC[k];
bUsed[j] = bUsed[k];
deltaPOC[k] = dPOC;
bUsed[k] = used;
}
}
uint32_t Slice::realEndAddress(uint32_t endCUAddr) const
{
// Calculate end address
uint32_t internalAddress = (endCUAddr - 1) % NUM_4x4_PARTITIONS;
uint32_t externalAddress = (endCUAddr - 1) / NUM_4x4_PARTITIONS;
uint32_t xmax = m_sps->picWidthInLumaSamples - (externalAddress % m_sps->numCuInWidth) * g_maxCUSize;
uint32_t ymax = m_sps->picHeightInLumaSamples - (externalAddress / m_sps->numCuInWidth) * g_maxCUSize;
while (g_zscanToPelX[internalAddress] >= xmax || g_zscanToPelY[internalAddress] >= ymax)
internalAddress--;
internalAddress++;
if (internalAddress == NUM_4x4_PARTITIONS)
{
internalAddress = 0;
externalAddress++;
}
return externalAddress * NUM_4x4_PARTITIONS + internalAddress;
}