mirror/libbpg
1
0
Fork 1
Code Issues Pull requests Releases Wiki Activity

libbpg-0.9.6

Browse source
This commit is contained in:
King_DuckZ 2015-10-27 11:46:00 +01:00
parent 3035b41edf
commit 35a8402710
248 changed files with 232891 additions and 100 deletions
Download patch file Download diff file Expand all files Collapse all files

159
x265/source/common/lowres.h Normal file
View file

@ -0,0 +1,159 @@
/*****************************************************************************
* Copyright (C) 2013 x265 project
*
* Authors: Gopu Govindaswamy <gopu@multicorewareinc.com>
*
* 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.
*****************************************************************************/
#ifndef X265_LOWRES_H
#define X265_LOWRES_H
#include "primitives.h"
#include "common.h"
#include "picyuv.h"
#include "mv.h"
namespace X265_NS {
// private namespace
struct ReferencePlanes
{
ReferencePlanes() { memset(this, 0, sizeof(ReferencePlanes)); }
pixel* fpelPlane[3];
pixel* lowresPlane[4];
PicYuv* reconPic;
bool isWeighted;
bool isLowres;
intptr_t lumaStride;
intptr_t chromaStride;
struct {
int weight;
int offset;
int shift;
int round;
} w[3];
pixel* getLumaAddr(uint32_t ctuAddr, uint32_t absPartIdx) { return fpelPlane[0] + reconPic->m_cuOffsetY[ctuAddr] + reconPic->m_buOffsetY[absPartIdx]; }
pixel* getCbAddr(uint32_t ctuAddr, uint32_t absPartIdx) { return fpelPlane[1] + reconPic->m_cuOffsetC[ctuAddr] + reconPic->m_buOffsetC[absPartIdx]; }
pixel* getCrAddr(uint32_t ctuAddr, uint32_t absPartIdx) { return fpelPlane[2] + reconPic->m_cuOffsetC[ctuAddr] + reconPic->m_buOffsetC[absPartIdx]; }
/* lowres motion compensation, you must provide a buffer and stride for QPEL averaged pixels
* in case QPEL is required. Else it returns a pointer to the HPEL pixels */
inline pixel *lowresMC(intptr_t blockOffset, const MV& qmv, pixel *buf, intptr_t& outstride)
{
if ((qmv.x | qmv.y) & 1)
{
int hpelA = (qmv.y & 2) | ((qmv.x & 2) >> 1);
pixel *frefA = lowresPlane[hpelA] + blockOffset + (qmv.x >> 2) + (qmv.y >> 2) * lumaStride;
int qmvx = qmv.x + (qmv.x & 1);
int qmvy = qmv.y + (qmv.y & 1);
int hpelB = (qmvy & 2) | ((qmvx & 2) >> 1);
pixel *frefB = lowresPlane[hpelB] + blockOffset + (qmvx >> 2) + (qmvy >> 2) * lumaStride;
primitives.pu[LUMA_8x8].pixelavg_pp(buf, outstride, frefA, lumaStride, frefB, lumaStride, 32);
return buf;
}
else
{
outstride = lumaStride;
int hpel = (qmv.y & 2) | ((qmv.x & 2) >> 1);
return lowresPlane[hpel] + blockOffset + (qmv.x >> 2) + (qmv.y >> 2) * lumaStride;
}
}
inline int lowresQPelCost(pixel *fenc, intptr_t blockOffset, const MV& qmv, pixelcmp_t comp)
{
if ((qmv.x | qmv.y) & 1)
{
ALIGN_VAR_16(pixel, subpelbuf[8 * 8]);
int hpelA = (qmv.y & 2) | ((qmv.x & 2) >> 1);
pixel *frefA = lowresPlane[hpelA] + blockOffset + (qmv.x >> 2) + (qmv.y >> 2) * lumaStride;
int qmvx = qmv.x + (qmv.x & 1);
int qmvy = qmv.y + (qmv.y & 1);
int hpelB = (qmvy & 2) | ((qmvx & 2) >> 1);
pixel *frefB = lowresPlane[hpelB] + blockOffset + (qmvx >> 2) + (qmvy >> 2) * lumaStride;
primitives.pu[LUMA_8x8].pixelavg_pp(subpelbuf, 8, frefA, lumaStride, frefB, lumaStride, 32);
return comp(fenc, FENC_STRIDE, subpelbuf, 8);
}
else
{
int hpel = (qmv.y & 2) | ((qmv.x & 2) >> 1);
pixel *fref = lowresPlane[hpel] + blockOffset + (qmv.x >> 2) + (qmv.y >> 2) * lumaStride;
return comp(fenc, FENC_STRIDE, fref, lumaStride);
}
}
};
/* lowres buffers, sizes and strides */
struct Lowres : public ReferencePlanes
{
pixel *buffer[4];
int frameNum; // Presentation frame number
int sliceType; // Slice type decided by lookahead
int width; // width of lowres frame in pixels
int lines; // height of lowres frame in pixel lines
int leadingBframes; // number of leading B frames for P or I
bool bScenecut; // Set to false if the frame cannot possibly be part of a real scenecut.
bool bKeyframe;
bool bLastMiniGopBFrame;
/* lookahead output data */
int64_t costEst[X265_BFRAME_MAX + 2][X265_BFRAME_MAX + 2];
int64_t costEstAq[X265_BFRAME_MAX + 2][X265_BFRAME_MAX + 2];
int32_t* rowSatds[X265_BFRAME_MAX + 2][X265_BFRAME_MAX + 2];
int intraMbs[X265_BFRAME_MAX + 2];
int32_t* intraCost;
uint8_t* intraMode;
int64_t satdCost;
uint16_t* lowresCostForRc;
uint16_t(*lowresCosts[X265_BFRAME_MAX + 2][X265_BFRAME_MAX + 2]);
int32_t* lowresMvCosts[2][X265_BFRAME_MAX + 1];
MV* lowresMvs[2][X265_BFRAME_MAX + 1];
uint32_t maxBlocksInRow;
uint32_t maxBlocksInCol;
/* used for vbvLookahead */
int plannedType[X265_LOOKAHEAD_MAX + 1];
int64_t plannedSatd[X265_LOOKAHEAD_MAX + 1];
int indB;
int bframes;
/* rate control / adaptive quant data */
double* qpAqOffset; // AQ QP offset values for each 16x16 CU
double* qpCuTreeOffset; // cuTree QP offset values for each 16x16 CU
int* invQscaleFactor; // qScale values for qp Aq Offsets
uint64_t wp_ssd[3]; // This is different than SSDY, this is sum(pixel^2) - sum(pixel)^2 for entire frame
uint64_t wp_sum[3];
/* cutree intermediate data */
uint16_t* propagateCost;
double weightedCostDelta[X265_BFRAME_MAX + 2];
bool create(PicYuv *origPic, int _bframes, bool bAqEnabled);
void destroy();
void init(PicYuv *origPic, int poc);
};
}
#endif // ifndef X265_LOWRES_H