winamp/Src/h264dec/ldecod/src/macroblock.c

6476 lines
187 KiB
C

/*!
***********************************************************************
* \file macroblock.c
*
* \brief
* Decode a Macroblock
*
* \author
* Main contributors (see contributors.h for copyright, address and affiliation details)
* - Inge Lille-Langøy <inge.lille-langoy@telenor.com>
* - Rickard Sjoberg <rickard.sjoberg@era.ericsson.se>
* - Jani Lainema <jani.lainema@nokia.com>
* - Sebastian Purreiter <sebastian.purreiter@mch.siemens.de>
* - Thomas Wedi <wedi@tnt.uni-hannover.de>
* - Detlev Marpe <marpe@hhi.de>
* - Gabi Blaettermann
* - Ye-Kui Wang <wyk@ieee.org>
* - Lowell Winger <lwinger@lsil.com>
* - Alexis Michael Tourapis <alexismt@ieee.org>
***********************************************************************
*/
#include "contributors.h"
#include <math.h>
#include "block.h"
#include "global.h"
#include "mbuffer.h"
#include "elements.h"
#include "errorconcealment.h"
#include "macroblock.h"
#include "fmo.h"
#include "cabac.h"
#include "vlc.h"
#include "image.h"
#include "mb_access.h"
#include "biaridecod.h"
#include "transform8x8.h"
#include "transform.h"
#include "mc_prediction.h"
#include "quant.h"
#include "intra4x4_pred.h"
#include "intra8x8_pred.h"
#include "intra16x16_pred.h"
#include "mv_prediction.h"
#include "optim.h"
#include "mb_prediction.h"
#include <emmintrin.h>
#include <smmintrin.h>
#if TRACE
#define TRACE_STRING(s) strncpy(currSE.tracestring, s, TRACESTRING_SIZE)
#define TRACE_DECBITS(i) dectracebitcnt(1)
#define TRACE_PRINTF(s) sprintf(type, "%s", s);
#define TRACE_STRING_P(s) strncpy(currSE->tracestring, s, TRACESTRING_SIZE)
#else
#define TRACE_STRING(s)
#define TRACE_DECBITS(i)
#define TRACE_PRINTF(s)
#define TRACE_STRING_P(s)
#endif
//! look up tables for FRExt_chroma support
void dectracebitcnt(int count);
static void read_motion_info_from_NAL_p_slice (Macroblock *currMB);
static void read_motion_info_from_NAL_b_slice (Macroblock *currMB);
static void read_ipred_modes (Macroblock *currMB);
static void read_CBP_and_coeffs_from_NAL_CABAC (Macroblock *currMB);
static void read_CBP_and_coeffs_from_NAL_CAVLC (Macroblock *currMB);
static void read_IPCM_coeffs_from_NAL (Slice *currSlice, struct datapartition *dP);
static void read_one_macroblock_i_slice (Macroblock *currMB);
static void read_one_macroblock_p_slice (Macroblock *currMB);
static void read_one_macroblock_b_slice (Macroblock *currMB);
static int decode_one_component_i_slice (Macroblock *currMB, ColorPlane curr_plane, struct video_image *image, StorablePicture *dec_picture);
static int decode_one_component_p_slice (Macroblock *currMB, ColorPlane curr_plane, struct video_image *image, StorablePicture *dec_picture);
static int decode_one_component_b_slice (Macroblock *currMB, ColorPlane curr_plane, struct video_image *image, StorablePicture *dec_picture);
static int decode_one_component_sp_slice (Macroblock *currMB, ColorPlane curr_plane, struct video_image *image, StorablePicture *dec_picture);
static inline void or_bits(int64 *x, int mask, int position)
{
#ifdef _M_IX86
__m64 mmx_x = *(__m64 *)x;
__m64 mmx_mask = _mm_cvtsi32_si64(mask);
mmx_mask=_mm_slli_si64(mmx_mask, position);
mmx_x = _mm_or_si64(mmx_x, mmx_mask);
*(__m64 *)x = mmx_x;
#else
*x |= ((int64) mask << position);
#endif
}
/*!
************************************************************************
* \brief
* Set context for reference frames
************************************************************************
*/
static inline int BType2CtxRef (int btype)
{
return (btype >= 4);
}
/*!
************************************************************************
* \brief
* Function for reading the reference picture indices using VLC
************************************************************************
*/
static char readRefPictureIdx_VLC(SyntaxElement *currSE, DataPartition *dP, int list)
{
#if TRACE
char tstring[20];
sprintf( tstring, "ref_idx_l%d", list);
strncpy(currSE->tracestring, tstring, TRACESTRING_SIZE);
#endif
currSE->value2 = list;
readSyntaxElement_UVLC(currSE, dP);
return (char) currSE->value1;
}
/*!
************************************************************************
* \brief
* Function for reading the reference picture indices using FLC
************************************************************************
*/
static char readRefPictureIdx_FLC(SyntaxElement *currSE, DataPartition *dP, int list)
{
#if TRACE
char tstring[20];
sprintf( tstring, "ref_idx_l%d", list);
strncpy(currSE->tracestring, tstring, TRACESTRING_SIZE);
#endif
//currSE->len = 1;
currSE->value1 = 1 - readSyntaxElement_FLC(dP->bitstream, 1);
return (char) currSE->value1;
}
/*!
************************************************************************
* \brief
* Dummy Function for reading the reference picture indices
************************************************************************
*/
static char readRefPictureIdx_Null(SyntaxElement *currSE, DataPartition *dP, int list)
{
return 0;
}
/*!
************************************************************************
* \brief
* Function to prepare reference picture indice function pointer
************************************************************************
*/
static void prepareListforRefIdx ( Macroblock *currMB, SyntaxElement *currSE, int num_ref_idx_active, int refidx_present)
{
currMB->readRefPictureIdx = readRefPictureIdx_Null; // Initialize readRefPictureIdx
if(num_ref_idx_active > 1)
{
currSE->mapping = linfo_ue;
if (refidx_present)
{
if (num_ref_idx_active == 2)
currMB->readRefPictureIdx = readRefPictureIdx_FLC;
else
currMB->readRefPictureIdx = readRefPictureIdx_VLC;
}
}
}
#if defined(_DEBUG) || defined(_M_X64)
void set_chroma_qp(Macroblock* currMB)
{
// TODO: benski> we could use MMX for this if we could find a formula for QP_SCALE_CR
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
int i;
for (i=0; i<2; ++i)
{
currMB->qpc[i] = iClip3 ( -p_Vid->bitdepth_chroma_qp_scale, 51, currMB->qp + dec_picture->chroma_qp_offset[i] );
currMB->qpc[i] = currMB->qpc[i] < 0 ? currMB->qpc[i] : QP_SCALE_CR[currMB->qpc[i]];
currMB->qp_scaled[i + 1] = currMB->qpc[i] + p_Vid->bitdepth_chroma_qp_scale;
}
}
#else
void set_chroma_qp(Macroblock* currMB);
#endif
/*!
************************************************************************
* \brief
* updates chroma QP according to luma QP and bit depth
************************************************************************
*/
static inline void update_qp(Macroblock *currMB, int qp)
{
VideoParameters *p_Vid = currMB->p_Vid;
currMB->qp = qp;
currMB->qp_scaled[0] = qp + p_Vid->bitdepth_luma_qp_scale;
set_chroma_qp(currMB);
currMB->is_lossless = (Boolean) ((currMB->qp_scaled[0] == 0) && (p_Vid->lossless_qpprime_flag == 1));
}
static void read_delta_quant_CAVLC(SyntaxElement *currSE, DataPartition *dP, Macroblock *currMB, const byte *partMap, int type)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
dP = &(currSlice->partArr[partMap[type]]);
currSE->mapping = linfo_se;
readSyntaxElement_UVLC(currSE, dP);
currMB->delta_quant = (short) currSE->value1;
if ((currMB->delta_quant < -(26 + p_Vid->bitdepth_luma_qp_scale/2)) || (currMB->delta_quant > (25 + p_Vid->bitdepth_luma_qp_scale/2)))
error ("mb_qp_delta is out of range", 500);
p_Vid->qp = ((p_Vid->qp + currMB->delta_quant + 52 + 2*p_Vid->bitdepth_luma_qp_scale)%(52+p_Vid->bitdepth_luma_qp_scale)) -
p_Vid->bitdepth_luma_qp_scale;
update_qp(currMB, p_Vid->qp);
}
static void inline read_delta_quant_CABAC(SyntaxElement *currSE, DataPartition *dP, Macroblock *currMB, const byte *partMap, int type)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
dP = &(currSlice->partArr[partMap[type]]);
currMB->delta_quant = readDquant_CABAC(currSlice, &dP->de_cabac);
if ((currMB->delta_quant < -(26 + p_Vid->bitdepth_luma_qp_scale/2)) || (currMB->delta_quant > (25 + p_Vid->bitdepth_luma_qp_scale/2)))
error ("mb_qp_delta is out of range", 500);
p_Vid->qp = ((p_Vid->qp + currMB->delta_quant + 52 + 2*p_Vid->bitdepth_luma_qp_scale)%(52+p_Vid->bitdepth_luma_qp_scale)) - p_Vid->bitdepth_luma_qp_scale;
update_qp(currMB, p_Vid->qp);
}
/*!
************************************************************************
* \brief
* Function to read reference picture indice values
************************************************************************
*/
static void readMBRefPictureIdx(SyntaxElement *currSE, DataPartition *dP, Macroblock *currMB, PicMotion **motion, int list, int step_v0, int step_h0)
{
int k, j, j0, i0, i;
char refframe;
for (j0 = 0; j0 < 4; j0 += step_v0)
{
currMB->subblock_y = j0 << 2;
for (i0 = 0; i0 < 4; i0 += step_h0)
{
currMB->subblock_x = i0 << 2;
k = 2 * (j0 >> 1) + (i0 >> 1);
if ((currMB->b8pdir[k] == list || currMB->b8pdir[k] == BI_PRED) && currMB->b8mode[k] != 0)
{
refframe = currMB->readRefPictureIdx(currSE, dP, list);
for (j = j0; j < j0 + step_v0; ++j)
{
for (i=0;i<step_h0;i++)
{
motion[j][currMB->block_x + i0 + i].ref_idx = refframe;
}
}
}
}
}
}
static void readMBRefPictureIdx_CABAC1(DataPartition *dP, Macroblock *currMB, PicMotion **motion, int list, int step_v0)
{
int k, j, j0, i0;
char refframe;
for (j0 = 0; j0 < 4; j0 += step_v0)
{
currMB->subblock_y = j0 << 2;
for (i0 = 0; i0 < 4; i0 += 1)
{
currMB->subblock_x = i0 << 2;
k = 2 * (j0 >> 1) + (i0 >> 1);
if ((currMB->b8pdir[k] == list || currMB->b8pdir[k] == BI_PRED) && currMB->b8mode[k] != 0)
{
refframe = readRefFrame_CABAC(currMB, &dP->de_cabac, list, i0<<2, j0<<2);
for (j = j0; j < j0 + step_v0; ++j)
motion[j][currMB->block_x + i0].ref_idx=refframe;
}
}
}
}
static void readMBRefPictureIdx_CABAC2(DataPartition *dP, Macroblock *currMB, PicMotion **motion, int list, int step_v0)
{
int k, j, j0;
char refframe;
for (j0 = 0; j0 < 4; j0 += step_v0)
{
currMB->subblock_y = j0 << 2;
currMB->subblock_x = 0 << 2;
k = 2 * (j0 >> 1) + (0 >> 1);
if ((currMB->b8pdir[k] == list || currMB->b8pdir[k] == BI_PRED) && currMB->b8mode[k] != 0)
{
refframe = readRefFrame_CABAC0(currMB, &dP->de_cabac, list, j0<<2);
for (j = j0; j < j0 + step_v0; ++j)
{
motion[j][currMB->block_x + 0].ref_idx=refframe;
motion[j][currMB->block_x + 1].ref_idx=refframe;
}
}
//
currMB->subblock_x = 2 << 2;
k = 2 * (j0 >> 1) + (2 >> 1);
if ((currMB->b8pdir[k] == list || currMB->b8pdir[k] == BI_PRED) && currMB->b8mode[k] != 0)
{
refframe = readRefFrame_CABAC(currMB, &dP->de_cabac, list, 8, j0<<2);
for (j = j0; j < j0 + step_v0; ++j)
{
motion[j][currMB->block_x + 2].ref_idx=refframe;
motion[j][currMB->block_x + 3].ref_idx=refframe;
}
}
}
}
static void readMBRefPictureIdx_CABAC4(DataPartition *dP, Macroblock *currMB, PicMotion **motion, int list, int step_v0)
{
int k, j, j0;
char refframe;
for (j0 = 0; j0 < 4; j0 += step_v0)
{
currMB->subblock_y = j0 << 2;
currMB->subblock_x = 0;
k = j0 & ~1;
if ((currMB->b8pdir[k] == list || currMB->b8pdir[k] == BI_PRED) && currMB->b8mode[k] != 0)
{
refframe = readRefFrame_CABAC0(currMB, &dP->de_cabac, list, j0<<2);
for (j = j0; j < j0 + step_v0; ++j)
{
motion[j][currMB->block_x + 0].ref_idx=refframe;
motion[j][currMB->block_x + 1].ref_idx=refframe;
motion[j][currMB->block_x + 2].ref_idx=refframe;
motion[j][currMB->block_x + 3].ref_idx=refframe;
}
}
}
}
static void readMBRefPictureIdx_CABAC(DataPartition *dP, Macroblock *currMB, PicMotion **motion, int list, int step_v0, int step_h0)
{
switch(step_h0)
{
case 1:
readMBRefPictureIdx_CABAC1(dP, currMB, motion, list, step_v0);
break;
case 2:
readMBRefPictureIdx_CABAC2(dP, currMB, motion, list, step_v0);
break;
case 4:
readMBRefPictureIdx_CABAC4(dP, currMB, motion, list, step_v0);
break;
}
}
static void readMBRefPictureIdx_CABAC_NoReference(Macroblock *currMB, PicMotion **motion, int list, int step_v0, int step_h0)
{
int k, j, j0, i0, i;
for (j0 = 0; j0 < 4; j0 += step_v0)
{
for (i0 = 0; i0 < 4; i0 += step_h0)
{
k = 2 * (j0 >> 1) + (i0 >> 1);
if ((currMB->b8pdir[k] == list || currMB->b8pdir[k] == BI_PRED) && currMB->b8mode[k] != 0)
{
for (j = j0; j < j0 + step_v0; ++j)
{
for (i=0;i<step_h0;i++)
{
motion[j][currMB->block_x + i0 + i].ref_idx=0;
}
}
}
}
}
}
/*!
************************************************************************
* \brief
* Function to read reference picture indice values
************************************************************************
*/
static void readMBMotionVectors(SyntaxElement *currSE, DataPartition *dP, Macroblock *currMB, int list, int step_h0, int step_v0)
{
int i, j, k, i4, j4, ii, jj, kk, i0, j0;
short curr_mvd[2], curr_mv[2], pred_mv[2];
MotionVector (*mvd)[4];
//MotionVector **mv;
int mv_mode, step_h, step_v;
char cur_ref_idx;
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
PixelPos block[4]; // neighbor blocks
for (j0=0; j0<4; j0+=step_v0)
{
for (i0=0; i0<4; i0+=step_h0)
{
kk = 2 * (j0 >> 1) + (i0 >> 1);
if ((currMB->b8pdir[kk]== list || currMB->b8pdir[kk]== BI_PRED) && (currMB->b8mode[kk] !=0))//has forward vector
{
PicMotion **list_motion = motion->motion[list];
cur_ref_idx = list_motion[currMB->block_y+j0][currMB->block_x+i0].ref_idx;
mv_mode = currMB->b8mode[kk];
step_h = BLOCK_STEP [mv_mode][0];
step_v = BLOCK_STEP [mv_mode][1];
for (j = j0; j < j0 + step_v0; j += step_v)
{
PicMotion **mv;
currMB->subblock_y = j << 2; // position used for context determination
j4 = currMB->block_y + j;
mv = &list_motion[j4];
mvd = &currMB->mvd [list][j];
for (i = i0; i < i0 + step_h0; i += step_h)
{
currMB->subblock_x = i << 2; // position used for context determination
i4 = currMB->block_x + i;
get_neighbors(currMB, block, BLOCK_SIZE * i, BLOCK_SIZE * j, 4 * step_h);
// first make mv-prediction
currMB->GetMVPredictor (currMB, block, pred_mv, cur_ref_idx, list_motion, BLOCK_SIZE * i, BLOCK_SIZE * j, 4 * step_h, 4 * step_v);
for (k=0; k < 2; ++k)
{
currSE->value2 = (k << 1) + list; // identifies the component; only used for context determination
readSyntaxElement_UVLC(currSE, dP);
curr_mvd[k] = (short) currSE->value1;
curr_mv [k] = (short)(curr_mvd[k] + pred_mv[k]); // compute motion vector
}
// Init motion vectors
for(jj = 0; jj < step_v; ++jj)
{
for(ii = i4; ii < i4 + step_h; ++ii)
{
memcpy(&mv[jj][ii].mv, curr_mv, sizeof(MotionVector));
}
}
// Init first line (mvd)
for(ii = i; ii < i + step_h; ++ii)
{
memcpy(mvd[0][ii], curr_mvd, sizeof(MotionVector));
}
// now copy all other lines
for(jj = 1; jj < step_v; ++jj)
{
memcpy(mvd[jj][i], mvd[0][i], step_h * sizeof(MotionVector));
}
}
}
}
}
}
}
static void readMBMotionVectors_CABAC(DataPartition *dP, Macroblock *currMB, int list, int step_h0, int step_v0)
{
int i, j, k, i4, j4, ii, jj, kk, i0, j0;
short curr_mvd[2], curr_mv[2], pred_mv[2];
MotionVector (*mvd)[4];
//MotionVector **mv;
int mv_mode, step_h, step_v;
char cur_ref_idx;
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
PixelPos block[4]; // neighbor blocks
for (j0=0; j0<4; j0+=step_v0)
{
for (i0=0; i0<4; i0+=step_h0)
{
kk = (j0 & ~1) + (i0 >> 1);
if ((currMB->b8pdir[kk]== list || currMB->b8pdir[kk]== BI_PRED) && (currMB->b8mode[kk] !=0))//has forward vector
{
PicMotion **list_motion = motion->motion[list];
cur_ref_idx = list_motion[currMB->block_y+j0][currMB->block_x+i0].ref_idx;
mv_mode = currMB->b8mode[kk];
step_h = BLOCK_STEP [mv_mode][0];
step_v = BLOCK_STEP [mv_mode][1];
for (j = j0; j < j0 + step_v0; j += step_v)
{
PicMotion **mv;
int block_j = j << 2;
currMB->subblock_y = block_j; // position used for context determination
j4 = currMB->block_y + j;
mv = &list_motion[j4];
mvd = &currMB->mvd [list][j];
for (i = i0; i < i0 + step_h0; i += step_h)
{
int block_i=i << 2;
currMB->subblock_x = block_i; // position used for context determination
i4 = currMB->block_x + i;
get_neighbors(currMB, block, block_i, block_j, 4 * step_h);
// first make mv-prediction
currMB->GetMVPredictor (currMB, block, pred_mv, cur_ref_idx, list_motion, block_i, block_j, 4 * step_h, 4 * step_v);
for (k=0; k < 2; ++k)
{
//currSE.value2 = (k << 1) + list; // identifies the component; only used for context determination
curr_mvd[k] = (short)readMVD_CABAC(currMB, &dP->de_cabac, k, list, block_i, block_j);
curr_mv [k] = (short)(curr_mvd[k] + pred_mv[k]); // compute motion vector
}
// Init motion vectors
for(jj = 0; jj < step_v; ++jj)
{
for(ii = i4; ii < i4 + step_h; ++ii)
{
*(int32_t *)(&mv[jj][ii].mv) = *(int32_t *)curr_mv;
}
}
// Init first line (mvd)
for(ii = i; ii < i + step_h; ++ii)
{
*(int32_t *)(mvd[0][ii]) = *(int32_t *)curr_mvd;
}
// now copy all other lines
for(jj = 1; jj < step_v; ++jj)
{
memcpy_amd(mvd[jj][i], mvd[0][i], step_h * sizeof(MotionVector));
}
}
}
}
}
}
}
/*!
************************************************************************
* \brief
* initializes the current macroblock
************************************************************************
*/
void start_macroblock(Slice *currSlice, Macroblock **currMB)
{
VideoParameters *p_Vid = currSlice->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
int mb_nr = p_Vid->current_mb_nr;
Macroblock *mb = &p_Vid->mb_data[mb_nr]; // intialization code deleted, see below, StW
*currMB = mb;
mb->p_Vid = p_Vid;
mb->p_Slice = currSlice;
mb->mbAddrX = mb_nr;
//assert (mb_nr < (int) p_Vid->PicSizeInMbs);
/* Update coordinates of the current macroblock */
if (currSlice->mb_aff_frame_flag)
{
mb->mb_x = (mb_nr) % ((2*p_Vid->width) / MB_BLOCK_SIZE);
mb->mb_y = 2*((mb_nr) / ((2*p_Vid->width) / MB_BLOCK_SIZE));
mb->mb_y += (mb->mb_x & 0x01);
mb->mb_x >>= 1;
}
else
{
mb->mb_x = p_Vid->PicPos[mb_nr][0];
mb->mb_y = p_Vid->PicPos[mb_nr][1];
}
/* Define vertical positions */
mb->block_y = mb->mb_y * BLOCK_SIZE; /* luma block position */
mb->block_y_aff = mb->block_y;
mb->pix_y = mb->mb_y * MB_BLOCK_SIZE; /* luma macroblock position */
mb->pix_c_y = mb->mb_y * p_Vid->mb_cr_size_y; /* chroma macroblock position */
/* Define horizontal positions */
mb->block_x = mb->mb_x * BLOCK_SIZE; /* luma block position */
mb->pix_x = mb->mb_x * MB_BLOCK_SIZE; /* luma pixel position */
mb->pix_c_x = mb->mb_x * p_Vid->mb_cr_size_x; /* chroma pixel position */
// Save the slice number of this macroblock. When the macroblock below
// is coded it will use this to decide if prediction for above is possible
mb->slice_nr = (short) p_Vid->current_slice_nr;
if (p_Vid->current_slice_nr >= MAX_NUM_SLICES)
{
error ("Maximum number of supported slices exceeded. \nPlease recompile with increased value for MAX_NUM_SLICES", 200);
}
dec_picture->slice_id[mb->mb_y][mb->mb_x] = (short) p_Vid->current_slice_nr;
dec_picture->max_slice_id = (short) imax(p_Vid->current_slice_nr, dec_picture->max_slice_id);
CheckAvailabilityOfNeighbors(mb);
// Select appropriate MV predictor function
init_motion_vector_prediction(*currMB, currSlice->mb_aff_frame_flag);
set_read_and_store_CBP(currMB, currSlice->active_sps->chroma_format_idc);
// Reset syntax element entries in MB struct
update_qp(*currMB, p_Vid->qp);
mb->mb_type = 0;
mb->delta_quant = 0;
mb->cbp = 0;
mb->c_ipred_mode = DC_PRED_8; //GB
if (currSlice->slice_type != I_SLICE)
{
if (currSlice->slice_type != B_SLICE)
memzero64(mb->mvd);//, BLOCK_MULTIPLE * BLOCK_MULTIPLE * 2 * sizeof(short));
else
memzero128(mb->mvd);//, 2 * BLOCK_MULTIPLE * BLOCK_MULTIPLE * 2 * sizeof(short));
}
memzero24(mb->cbp_blk);
memzero24(mb->cbp_bits);
memzero24(mb->cbp_bits_8x8);
// initialize currSlice->mb_rres
memset(currSlice->mb_rres8, 0, sizeof(currSlice->mb_rres8));
// store filtering parameters for this MB
mb->DFDisableIdc = currSlice->DFDisableIdc;
mb->DFAlphaC0Offset = currSlice->DFAlphaC0Offset;
mb->DFBetaOffset = currSlice->DFBetaOffset;
}
/*!
************************************************************************
* \brief
* set coordinates of the next macroblock
* check end_of_slice condition
************************************************************************
*/
Boolean exit_macroblock(Slice *currSlice, int eos_bit)
{
VideoParameters *p_Vid = currSlice->p_Vid;
//! The if() statement below resembles the original code, which tested
//! p_Vid->current_mb_nr == p_Vid->PicSizeInMbs. Both is, of course, nonsense
//! In an error prone environment, one can only be sure to have a new
//! picture by checking the tr of the next slice header!
// printf ("exit_macroblock: FmoGetLastMBOfPicture %d, p_Vid->current_mb_nr %d\n", FmoGetLastMBOfPicture(), p_Vid->current_mb_nr);
++(p_Vid->num_dec_mb);
if (p_Vid->num_dec_mb == p_Vid->PicSizeInMbs)
{
return TRUE;
}
// ask for last mb in the slice CAVLC
else
{
p_Vid->current_mb_nr = FmoGetNextMBNr (p_Vid, p_Vid->current_mb_nr);
if (p_Vid->current_mb_nr == -1) // End of Slice group, MUST be end of slice
{
assert (currSlice->nal_startcode_follows (currSlice, eos_bit) == TRUE);
return TRUE;
}
if(currSlice->nal_startcode_follows(currSlice, eos_bit) == FALSE)
return FALSE;
if(currSlice->slice_type == I_SLICE || currSlice->slice_type == SI_SLICE || p_Vid->active_pps->entropy_coding_mode_flag == CABAC)
return TRUE;
if(p_Vid->cod_counter <= 0)
return TRUE;
return FALSE;
}
}
/*!
************************************************************************
* \brief
* Interpret the mb mode for P-Frames
************************************************************************
*/
static void interpret_mb_mode_P(Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
static const int ICBPTAB[6] = {0,16,32,15,31,47};
int mbmode = currMB->mb_type;
#define ZERO_P8x8 (mbmode==5)
#define MODE_IS_P8x8 (mbmode==4 || mbmode==5)
#define MODE_IS_I4x4 (mbmode==6)
#define I16OFFSET (mbmode-7)
#define MODE_IS_IPCM (mbmode==31)
if(mbmode <4)
{
currMB->mb_type = mbmode;
memset(&currMB->b8mode[0],mbmode,4 * sizeof(char));
memset(&currMB->b8pdir[0], 0, 4 * sizeof(char));
}
else if(MODE_IS_P8x8)
{
currMB->mb_type = P8x8;
p_Vid->allrefzero = ZERO_P8x8;
}
else if(MODE_IS_I4x4)
{
currMB->mb_type = I4MB;
memset(&currMB->b8mode[0],IBLOCK, 4 * sizeof(char));
memset(&currMB->b8pdir[0], -1, 4 * sizeof(char));
}
else if(MODE_IS_IPCM)
{
currMB->mb_type = IPCM;
currMB->cbp = -1;
currMB->i16mode = 0;
memset(&currMB->b8mode[0], 0, 4 * sizeof(char));
memset(&currMB->b8pdir[0],-1, 4 * sizeof(char));
}
else
{
currMB->mb_type = I16MB;
currMB->cbp = ICBPTAB[(I16OFFSET)>>2];
currMB->i16mode = (I16OFFSET) & 0x03;
memset(&currMB->b8mode[0], 0, 4 * sizeof(char));
memset(&currMB->b8pdir[0],-1, 4 * sizeof(char));
}
}
/*!
************************************************************************
* \brief
* Interpret the mb mode for I-Frames
************************************************************************
*/
static void interpret_mb_mode_I(Macroblock *currMB)
{
static const int ICBPTAB[6] = {0,16,32,15,31,47};
int mbmode = currMB->mb_type;
if (mbmode==0)
{
currMB->mb_type = I4MB;
memset(&currMB->b8mode[0],IBLOCK,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
}
else if(mbmode==25)
{
currMB->mb_type=IPCM;
currMB->cbp= -1;
currMB->i16mode = 0;
memset(&currMB->b8mode[0],0,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
}
else
{
currMB->mb_type = I16MB;
currMB->cbp= ICBPTAB[(mbmode-1)>>2];
currMB->i16mode = (mbmode-1) & 0x03;
memset(&currMB->b8mode[0], 0, 4 * sizeof(char));
memset(&currMB->b8pdir[0],-1, 4 * sizeof(char));
}
}
/*!
************************************************************************
* \brief
* Interpret the mb mode for B-Frames
************************************************************************
*/
static void interpret_mb_mode_B(Macroblock *currMB)
{
static const int offset2pdir16x16[12] = {0, 0, 1, 2, 0,0,0,0,0,0,0,0};
static const int offset2pdir16x8[22][2] = {{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{1,1},{0,0},{0,1},{0,0},{1,0},
{0,0},{0,2},{0,0},{1,2},{0,0},{2,0},{0,0},{2,1},{0,0},{2,2},{0,0}};
static const int offset2pdir8x16[22][2] = {{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{0,0},{1,1},{0,0},{0,1},{0,0},
{1,0},{0,0},{0,2},{0,0},{1,2},{0,0},{2,0},{0,0},{2,1},{0,0},{2,2}};
static const int ICBPTAB[6] = {0,16,32,15,31,47};
int i, mbmode;
int mbtype = currMB->mb_type;
//--- set mbtype, b8type, and b8pdir ---
if (mbtype==0) // direct
{
mbmode=0;
memset(&currMB->b8mode[0],0,4 * sizeof(char));
memset(&currMB->b8pdir[0],2,4 * sizeof(char));
}
else if (mbtype==23) // intra4x4
{
mbmode=I4MB;
memset(&currMB->b8mode[0],IBLOCK,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
}
else if ((mbtype>23) && (mbtype<48) ) // intra16x16
{
mbmode=I16MB;
memset(&currMB->b8mode[0],0,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
currMB->cbp = ICBPTAB[(mbtype-24)>>2];
currMB->i16mode = (mbtype-24) & 0x03;
}
else if (mbtype==22) // 8x8(+split)
{
mbmode=P8x8; // b8mode and pdir is transmitted in additional codewords
}
else if (mbtype<4) // 16x16
{
mbmode=1;
memset(&currMB->b8mode[0], 1,4 * sizeof(char));
memset(&currMB->b8pdir[0],offset2pdir16x16[mbtype],4 * sizeof(char));
}
else if(mbtype==48)
{
mbmode=IPCM;
memset(&currMB->b8mode[0], 0,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
currMB->cbp= -1;
currMB->i16mode = 0;
}
else if ((mbtype&0x01)==0) // 16x8
{
mbmode=2;
memset(&currMB->b8mode[0], 2,4 * sizeof(char));
for(i=0;i<4;++i)
{
currMB->b8pdir[i] = (char) offset2pdir16x8 [mbtype][i>>1];
}
}
else
{
mbmode=3;
memset(&currMB->b8mode[0], 3,4 * sizeof(char));
for(i=0;i<4; ++i)
{
currMB->b8pdir[i] = (char) offset2pdir8x16 [mbtype][i&0x01];
}
}
currMB->mb_type = mbmode;
}
/*!
************************************************************************
* \brief
* Interpret the mb mode for SI-Frames
************************************************************************
*/
static void interpret_mb_mode_SI(Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
const int ICBPTAB[6] = {0,16,32,15,31,47};
int mbmode = currMB->mb_type;
if (mbmode==0)
{
currMB->mb_type = SI4MB;
memset(&currMB->b8mode[0],IBLOCK,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
p_Vid->siblock[currMB->mb_y][currMB->mb_x]=1;
}
else if (mbmode==1)
{
currMB->mb_type = I4MB;
memset(&currMB->b8mode[0],IBLOCK,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
}
else if(mbmode==26)
{
currMB->mb_type=IPCM;
currMB->cbp= -1;
currMB->i16mode = 0;
memset(&currMB->b8mode[0],0,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
}
else
{
currMB->mb_type = I16MB;
currMB->cbp= ICBPTAB[(mbmode-2)>>2];
currMB->i16mode = (mbmode-2) & 0x03;
memset(&currMB->b8mode[0],0,4 * sizeof(char));
memset(&currMB->b8pdir[0],-1,4 * sizeof(char));
}
}
/*!
************************************************************************
* \brief
* Set mode interpretation based on slice type
************************************************************************
*/
void setup_slice_methods(Slice *currSlice)
{
switch (currSlice->slice_type)
{
case P_SLICE:
currSlice->interpret_mb_mode = interpret_mb_mode_P;
currSlice->read_motion_info_from_NAL = read_motion_info_from_NAL_p_slice;
currSlice->read_one_macroblock = read_one_macroblock_p_slice;
currSlice->decode_one_component = decode_one_component_p_slice;
break;
case SP_SLICE:
currSlice->interpret_mb_mode = interpret_mb_mode_P;
currSlice->read_motion_info_from_NAL = read_motion_info_from_NAL_p_slice;
currSlice->read_one_macroblock = read_one_macroblock_p_slice;
currSlice->decode_one_component = decode_one_component_sp_slice;
break;
case B_SLICE:
currSlice->interpret_mb_mode = interpret_mb_mode_B;
currSlice->read_motion_info_from_NAL = read_motion_info_from_NAL_b_slice;
currSlice->read_one_macroblock = read_one_macroblock_b_slice;
currSlice->decode_one_component = decode_one_component_b_slice;
break;
case I_SLICE:
currSlice->interpret_mb_mode = interpret_mb_mode_I;
currSlice->read_motion_info_from_NAL = NULL;
currSlice->read_one_macroblock = read_one_macroblock_i_slice;
currSlice->decode_one_component = decode_one_component_i_slice;
break;
case SI_SLICE:
currSlice->interpret_mb_mode = interpret_mb_mode_SI;
currSlice->read_motion_info_from_NAL = NULL;
currSlice->read_one_macroblock = read_one_macroblock_i_slice;
currSlice->decode_one_component = decode_one_component_i_slice;
break;
default:
printf("Unsupported slice type\n");
break;
}
if( IS_INDEPENDENT(currSlice->p_Vid) )
currSlice->compute_colocated = compute_colocated_JV;
else
{
if (currSlice->active_sps->frame_mbs_only_flag)
currSlice->compute_colocated = compute_colocated;
else
currSlice->compute_colocated = compute_colocated_frames_mbs;
}
switch(currSlice->p_Vid->active_pps->entropy_coding_mode_flag)
{
case CABAC:
currSlice->read_CBP_and_coeffs_from_NAL = read_CBP_and_coeffs_from_NAL_CABAC;
break;
case CAVLC:
currSlice->read_CBP_and_coeffs_from_NAL = read_CBP_and_coeffs_from_NAL_CAVLC;
break;
default:
printf("Unsupported entropy coding mode\n");
break;
}
}
void macroblock_set_dc_pred(VideoParameters *p_Vid, int block_x, int block_y)
{
int32_t dc_pred = 2 + (2 << 8) + (2 << 16) + (2 << 24);
int32_t *pred = (int32_t *)&p_Vid->ipredmode[block_y][block_x];
int stride = p_Vid->PicWidthInMbs;
int i;
for (i=0;i<BLOCK_SIZE;i++)
{
*pred = dc_pred;
pred += stride;
}
}
/*!
************************************************************************
* \brief
* init macroblock I and P frames
************************************************************************
*/
#ifdef _M_IX86
static void init_macroblock(Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
int j;
int block_x = currMB->block_x, block_y = currMB->block_y;
PicMotionParams *motion = &p_Vid->dec_picture->motion;
PicMotion **list_motion0, **list_motion1;
__m64 const_0_minus_1 = _mm_setr_pi32(0, -1);
macroblock_set_dc_pred(p_Vid, block_x, block_y);
// reset vectors and pred. modes
list_motion0 = motion->motion[LIST_0];
for(j = 0; j < BLOCK_SIZE; j++)
{
PicMotion *block = &list_motion0[block_y+j][block_x];
block[0].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[0].mv = const_0_minus_1;
block[1].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[1].mv = const_0_minus_1;
block[2].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[2].mv = const_0_minus_1;
block[3].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[3].mv = const_0_minus_1;
}
list_motion1 = motion->motion[LIST_1];
for(j = 0; j < BLOCK_SIZE; j++)
{
PicMotion *block = &list_motion1[block_y+j][block_x];
block[0].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[0].mv = const_0_minus_1;
block[1].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[1].mv = const_0_minus_1;
block[2].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[2].mv = const_0_minus_1;
block[3].ref_pic_id = UNDEFINED_REFERENCE;
*(__m64 *)&block[3].mv = const_0_minus_1;
}
}
#else
static void init_macroblock(Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
int i, j;
int block_x = currMB->block_x, block_y = currMB->block_y;
PicMotionParams *motion = &p_Vid->dec_picture->motion;
PicMotion **list_motion0, **list_motion1;
macroblock_set_dc_pred(p_Vid, block_x, block_y);
// reset vectors and pred. modes
list_motion0 = motion->motion[LIST_0];
for(j = 0; j < BLOCK_SIZE; j++)
{
PicMotion *block0 = &list_motion0[block_y+j][block_x];
block0[0].ref_pic_id = UNDEFINED_REFERENCE;
memset(block0[0].mv, 0, sizeof(MotionVector));
block0[0].ref_idx = -1;
block0[1].ref_pic_id = UNDEFINED_REFERENCE;
memset(block0[1].mv, 0, sizeof(MotionVector));
block0[1].ref_idx = -1;
block0[2].ref_pic_id = UNDEFINED_REFERENCE;
memset(block0[2].mv, 0, sizeof(MotionVector));
block0[2].ref_idx = -1;
block0[3].ref_pic_id = UNDEFINED_REFERENCE;
memset(block0[3].mv, 0, sizeof(MotionVector));
block0[3].ref_idx = -1;
}
list_motion1 = motion->motion[LIST_1];
for(j = 0; j < BLOCK_SIZE; j++)
{
PicMotion *block1 = &list_motion1[block_y+j][block_x];
block1[0].ref_pic_id = UNDEFINED_REFERENCE;
memset(block1[0].mv, 0, sizeof(MotionVector));
block1[0].ref_idx = -1;
block1[1].ref_pic_id = UNDEFINED_REFERENCE;
memset(block1[1].mv, 0, sizeof(MotionVector));
block1[1].ref_idx = -1;
block1[2].ref_pic_id = UNDEFINED_REFERENCE;
memset(block1[2].mv, 0, sizeof(MotionVector));
block1[2].ref_idx = -1;
block1[3].ref_pic_id = UNDEFINED_REFERENCE;
memset(block1[3].mv, 0, sizeof(MotionVector));
block1[3].ref_idx = -1;
}
}
#endif
/*!
************************************************************************
* \brief
* Sets mode for 8x8 block
************************************************************************
*/
void SetB8Mode (Macroblock* currMB, int value, int i)
{
Slice* currSlice = currMB->p_Slice;
static const char p_v2b8 [ 5] = {4, 5, 6, 7, IBLOCK};
static const char p_v2pd [ 5] = {0, 0, 0, 0, -1};
static const char b_v2b8 [14] = {0, 4, 4, 4, 5, 6, 5, 6, 5, 6, 7, 7, 7, IBLOCK};
static const char b_v2pd [14] = {2, 0, 1, 2, 0, 0, 1, 1, 2, 2, 0, 1, 2, -1};
if (currSlice->slice_type==B_SLICE)
{
currMB->b8mode[i] = b_v2b8[value];
currMB->b8pdir[i] = b_v2pd[value];
}
else
{
currMB->b8mode[i] = p_v2b8[value];
currMB->b8pdir[i] = p_v2pd[value];
}
}
void reset_coeffs(Slice *currSlice)
{
VideoParameters *p_Vid = currSlice->p_Vid;
// reset all coeffs
#ifdef _DEBUG
{
int m;
for (m=0;m<3;m++)
{
int z;
short *b = &currSlice->cof[m][0][0];
for (z=0;z<256;z++)
{
if (b[z] != 0)
{
DebugBreak();
}
}
}
}
#endif
// benski> don't think this is necessary... enable check above to be sure
// memset(currSlice->cof, 0, sizeof(currSlice->cof));
// CAVLC
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
memzero48(p_Vid->nz_coeff[p_Vid->current_mb_nr]);
}
void field_flag_inference(Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
if (currMB->mb_avail_left)
{
currMB->mb_field = p_Vid->mb_data[currMB->mb_addr_left].mb_field;
}
else
{
// check top macroblock pair
currMB->mb_field = currMB->mb_avail_up ? p_Vid->mb_data[currMB->mb_addr_up].mb_field : FALSE;
}
}
static void skip_macroblock(Macroblock *currMB)
{
short pred_mv[2];
int zeroMotionAbove;
int zeroMotionLeft;
PixelPos mb[4]; // neighbor blocks
int i, j;
int a_mv_y = 0;
int a_ref_idx = 0;
int b_mv_y = 0;
int b_ref_idx = 0;
int img_block_y = currMB->block_y;
VideoParameters *p_Vid = currMB->p_Vid;
Slice *currSlice = currMB->p_Slice;
int list_offset = ((currSlice->mb_aff_frame_flag) && (currMB->mb_field)) ? (currMB->mbAddrX & 0x01) ? 4 : 2 : 0;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
short *a_mv = NULL;
short *b_mv = NULL;
get_neighbors0016(currMB, mb);
if (mb[0].available)
{
a_mv = motion->motion[LIST_0][mb[0].pos_y][mb[0].pos_x].mv;
a_mv_y = a_mv[1];
a_ref_idx = motion->motion[LIST_0][mb[0].pos_y][mb[0].pos_x].ref_idx;
if (currMB->mb_field && !p_Vid->mb_data[mb[0].mb_addr].mb_field)
{
a_mv_y /=2;
a_ref_idx *=2;
}
if (!currMB->mb_field && p_Vid->mb_data[mb[0].mb_addr].mb_field)
{
a_mv_y *=2;
a_ref_idx >>=1;
}
}
if (mb[1].available)
{
b_mv = motion->motion[LIST_0][mb[1].pos_y][mb[1].pos_x].mv;
b_mv_y = b_mv[1];
b_ref_idx = motion->motion[LIST_0][mb[1].pos_y][mb[1].pos_x].ref_idx;
if (currMB->mb_field && !p_Vid->mb_data[mb[1].mb_addr].mb_field)
{
b_mv_y /=2;
b_ref_idx *=2;
}
if (!currMB->mb_field && p_Vid->mb_data[mb[1].mb_addr].mb_field)
{
b_mv_y *=2;
b_ref_idx >>=1;
}
}
zeroMotionLeft = !mb[0].available ? 1 : a_ref_idx==0 && a_mv[0]==0 && a_mv_y==0 ? 1 : 0;
zeroMotionAbove = !mb[1].available ? 1 : b_ref_idx==0 && b_mv[0]==0 && b_mv_y==0 ? 1 : 0;
currMB->cbp = 0;
reset_coeffs(currSlice);
if (zeroMotionAbove || zeroMotionLeft)
{
for(j = img_block_y; j < img_block_y + BLOCK_SIZE; ++j)
{
for(i=currMB->block_x;i<currMB->block_x + BLOCK_SIZE; ++i)
{
memset(&motion->motion[LIST_0][j][i].mv, 0, sizeof(MotionVector));
motion->motion[LIST_0][j][i].ref_idx=0;
motion->motion[LIST_0][j][i].ref_pic_id = dec_picture->ref_pic_num[p_Vid->current_slice_nr][LIST_0 + list_offset][0];
}
}
}
else
{
currMB->GetMVPredictor (currMB, mb, pred_mv, 0, motion->motion[LIST_0], 0, 0, MB_BLOCK_SIZE, MB_BLOCK_SIZE);
// Set first block line (position img_block_y)
for(j=img_block_y; j < img_block_y + BLOCK_SIZE; ++j)
{
for(i=currMB->block_x;i<currMB->block_x + BLOCK_SIZE; ++i)
{
memcpy(&motion->motion[LIST_0][j][i].mv, pred_mv, sizeof(MotionVector));
motion->motion[LIST_0][j][i].ref_idx=0;
motion->motion[LIST_0][j][i].ref_pic_id = dec_picture->ref_pic_num[p_Vid->current_slice_nr][LIST_0 + list_offset][0];
}
}
}
}
static void concealIPCMcoeffs(Macroblock *currMB)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
int i, j, k;
for(i=0;i<MB_BLOCK_SIZE;++i)
{
for(j=0;j<MB_BLOCK_SIZE;++j)
{
currSlice->ipcm[0][i][j] = p_Vid->dc_pred_value_comp[0];
}
}
if ((dec_picture->chroma_format_idc != YUV400) && !IS_INDEPENDENT(p_Vid))
{
for (k = 0; k < 2; ++k)
{
for(i=0;i<p_Vid->mb_cr_size_y;++i)
{
for(j=0;j<p_Vid->mb_cr_size_x;++j)
{
currSlice->ipcm[k][i][j] = p_Vid->dc_pred_value_comp[k];
}
}
}
}
}
/*!
************************************************************************
* \brief
* Get the syntax elements from the NAL
************************************************************************
*/
static void read_one_macroblock_i_slice(Macroblock *currMB)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
SyntaxElement currSE;
int mb_nr = currMB->mbAddrX;
DataPartition *dP;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
currMB->mb_field = ((mb_nr&0x01) == 0)? FALSE : p_Vid->mb_data[mb_nr-1].mb_field;
update_qp(currMB, p_Vid->qp);
// read MB mode *****************************************************************
dP = &(currSlice->partArr[partMap[SE_MBTYPE]]);
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
currSE.mapping = linfo_ue;
// read MB aff
if (currSlice->mb_aff_frame_flag && (mb_nr&0x01)==0)
{
TRACE_STRING("mb_field_decoding_flag");
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
currMB->mb_field = readSyntaxElement_FLC(dP->bitstream, 1);
}
else
{
currMB->mb_field = readFieldModeInfo_CABAC(currMB, &dP->de_cabac);
}
}
if(p_Vid->active_pps->entropy_coding_mode_flag == CABAC)
{
CheckAvailabilityOfNeighborsCABAC(currMB);
// read MB type
currMB->mb_type = readMB_typeInfo_CABAC(currMB, &dP->de_cabac);
}
else
{ // CAVLC
// read MB type
readSyntaxElement_UVLC(&currSE, dP);
currMB->mb_type = currSE.value1;
}
currMB->ei_flag = 0;
motion->mb_field[mb_nr] = (byte) currMB->mb_field;
currMB->block_y_aff = ((currSlice->mb_aff_frame_flag) && (currMB->mb_field)) ? (mb_nr&0x01) ? (currMB->block_y - 4)>>1 : currMB->block_y >> 1 : currMB->block_y;
p_Vid->siblock[currMB->mb_y][currMB->mb_x] = 0;
currSlice->interpret_mb_mode(currMB);
//init NoMbPartLessThan8x8Flag
currMB->NoMbPartLessThan8x8Flag = TRUE;
//============= Transform Size Flag for INTRA MBs =============
//-------------------------------------------------------------
//transform size flag for INTRA_4x4 and INTRA_8x8 modes
if (currMB->mb_type == I4MB && p_Vid->Transform8x8Mode)
{
dP = &(currSlice->partArr[partMap[SE_HEADER]]);
TRACE_STRING("transform_size_8x8_flag");
// read CAVLC transform_size_8x8_flag
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
currMB->luma_transform_size_8x8_flag = readSyntaxElement_FLC(dP->bitstream, 1);
}
else
{
currMB->luma_transform_size_8x8_flag = readMB_transform_size_flag_CABAC(currMB, &dP->de_cabac);
}
if (currMB->luma_transform_size_8x8_flag)
{
currMB->mb_type = I8MB;
memset(&currMB->b8mode, I8MB, 4 * sizeof(char));
memset(&currMB->b8pdir, -1, 4 * sizeof(char));
}
}
else
{
currMB->luma_transform_size_8x8_flag = FALSE;
}
//--- init macroblock data ---
init_macroblock(currMB);
if(currMB->mb_type != IPCM)
{
// intra prediction modes for a macroblock 4x4 **********************************************
read_ipred_modes(currMB);
// read CBP and Coeffs ***************************************************************
currSlice->read_CBP_and_coeffs_from_NAL (currMB);
}
else
{
//read pcm_alignment_zero_bit and pcm_byte[i]
// here dP is assigned with the same dP as SE_MBTYPE, because IPCM syntax is in the
// same category as MBTYPE
if ( currSlice->dp_mode && currSlice->dpB_NotPresent )
{
concealIPCMcoeffs(currMB);
}
else
{
dP = &(currSlice->partArr[partMap[SE_LUM_DC_INTRA]]);
read_IPCM_coeffs_from_NAL(currSlice, dP);
}
}
return;
}
/*!
************************************************************************
* \brief
* Get the syntax elements from the NAL
************************************************************************
*/
static void read_one_macroblock_p_slice(Macroblock *currMB)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int i;
SyntaxElement currSE;
int mb_nr = currMB->mbAddrX;
DataPartition *dP;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
Macroblock *topMB = NULL;
int prevMbSkipped = 0;
int check_bottom, read_bottom, read_top;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
if (currSlice->mb_aff_frame_flag)
{
if (mb_nr&0x01)
{
topMB= &p_Vid->mb_data[mb_nr-1];
prevMbSkipped = (topMB->mb_type == 0);
}
else
prevMbSkipped = 0;
}
currMB->mb_field = ((mb_nr&0x01) == 0)? FALSE : p_Vid->mb_data[mb_nr-1].mb_field;
update_qp(currMB, p_Vid->qp);
// read MB mode *****************************************************************
dP = &(currSlice->partArr[partMap[SE_MBTYPE]]);
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
currSE.mapping = linfo_ue;
if (p_Vid->active_pps->entropy_coding_mode_flag == CABAC)
{
int skip;
// read MB skip_flag
if (currSlice->mb_aff_frame_flag && ((mb_nr&0x01) == 0||prevMbSkipped))
field_flag_inference(currMB);
CheckAvailabilityOfNeighborsCABAC(currMB);
TRACE_STRING("mb_skip_flag");
skip = readMB_skip_flagInfo_CABAC(currMB, &dP->de_cabac);
currMB->mb_type = !skip;
currMB->skip_flag = skip;
currMB->ei_flag = 0;
// read MB AFF
if (currSlice->mb_aff_frame_flag)
{
check_bottom=read_bottom=read_top=0;
if ((mb_nr&0x01)==0)
{
check_bottom = currMB->skip_flag;
read_top = !check_bottom;
}
else
{
read_bottom = (topMB->skip_flag && (!currMB->skip_flag));
}
if (read_bottom || read_top)
{
TRACE_STRING("mb_field_decoding_flag");
currMB->mb_field = readFieldModeInfo_CABAC(currMB, &dP->de_cabac);
}
if (check_bottom)
check_next_mb_and_get_field_mode_CABAC(currSlice, dP);
CheckAvailabilityOfNeighborsCABAC(currMB);
}
// read MB type
if (currMB->mb_type != 0 )
{
TRACE_STRING("mb_type");
currMB->mb_type = readMB_typeInfo_CABAC(currMB, &dP->de_cabac);
currMB->ei_flag = 0;
}
}
// VLC Non-Intra
else
{
if(p_Vid->cod_counter == -1)
{
TRACE_STRING("mb_skip_run");
readSyntaxElement_UVLC(&currSE, dP);
p_Vid->cod_counter = currSE.value1;
}
if (p_Vid->cod_counter==0)
{
// read MB aff
if ((currSlice->mb_aff_frame_flag) && (((mb_nr&0x01)==0) || ((mb_nr&0x01) && prevMbSkipped)))
{
TRACE_STRING("mb_field_decoding_flag");
currMB->mb_field = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
}
// read MB type
TRACE_STRING("mb_type");
readSyntaxElement_UVLC(&currSE, dP);
if(currSlice->slice_type == P_SLICE || currSlice->slice_type == SP_SLICE)
++(currSE.value1);
currMB->mb_type = currSE.value1;
currMB->ei_flag = 0;
p_Vid->cod_counter--;
currMB->skip_flag = 0;
}
else
{
p_Vid->cod_counter--;
currMB->mb_type = 0;
currMB->ei_flag = 0;
currMB->skip_flag = 1;
// read field flag of bottom block
if(currSlice->mb_aff_frame_flag)
{
if(p_Vid->cod_counter == 0 && ((mb_nr&0x01) == 0))
{
TRACE_STRING("mb_field_decoding_flag (of coded bottom mb)");
currMB->mb_field = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
dP->bitstream->frame_bitoffset--;
TRACE_DECBITS(1);
}
else if (p_Vid->cod_counter > 0 && ((mb_nr & 0x01) == 0))
{
// check left macroblock pair first
if (mb_is_available(mb_nr - 2, currMB) && ((mb_nr % (p_Vid->PicWidthInMbs * 2))!=0))
{
currMB->mb_field = p_Vid->mb_data[mb_nr-2].mb_field;
}
else
{
// check top macroblock pair
if (mb_is_available(mb_nr - 2*p_Vid->PicWidthInMbs, currMB))
{
currMB->mb_field = p_Vid->mb_data[mb_nr-2*p_Vid->PicWidthInMbs].mb_field;
}
else
currMB->mb_field = FALSE;
}
}
}
}
}
motion->mb_field[mb_nr] = (byte) currMB->mb_field;
currMB->block_y_aff = ((currSlice->mb_aff_frame_flag) && (currMB->mb_field)) ? (mb_nr&0x01) ? (currMB->block_y - 4)>>1 : currMB->block_y >> 1 : currMB->block_y;
p_Vid->siblock[currMB->mb_y][currMB->mb_x] = 0;
currSlice->interpret_mb_mode(currMB);
if(currSlice->mb_aff_frame_flag)
{
if(currMB->mb_field)
{
currSlice->num_ref_idx_l0_active <<=1;
currSlice->num_ref_idx_l1_active <<=1;
}
}
//init NoMbPartLessThan8x8Flag
currMB->NoMbPartLessThan8x8Flag = (IS_DIRECT(currMB) && !(p_Vid->active_sps->direct_8x8_inference_flag))? FALSE: TRUE;
//====== READ 8x8 SUB-PARTITION MODES (modes of 8x8 blocks) and Intra VBST block modes ======
if (currMB->mb_type == P8x8)
{
dP = &(currSlice->partArr[partMap[SE_MBTYPE]]);
if (p_Vid->active_pps->entropy_coding_mode_flag ==CAVLC)
{
currSE.mapping = linfo_ue;
for (i = 0; i < 4; ++i)
{
TRACE_STRING("sub_mb_type");
readSyntaxElement_UVLC(&currSE, dP);
SetB8Mode (currMB, currSE.value1, i);
//set NoMbPartLessThan8x8Flag for P8x8 mode
currMB->NoMbPartLessThan8x8Flag &= (currMB->b8mode[i]==0 && p_Vid->active_sps->direct_8x8_inference_flag) ||
(currMB->b8mode[i]==4);
}
}
else
{
for (i = 0; i < 4; ++i)
{
int value = readB8_typeInfo_CABAC(currSlice, &dP->de_cabac);
SetB8Mode (currMB, value, i);
//set NoMbPartLessThan8x8Flag for P8x8 mode
currMB->NoMbPartLessThan8x8Flag &= (currMB->b8mode[i]==0 && p_Vid->active_sps->direct_8x8_inference_flag) ||
(currMB->b8mode[i]==4);
}
}
//--- init macroblock data ---
init_macroblock (currMB);
currSlice->read_motion_info_from_NAL (currMB);
}
//============= Transform Size Flag for INTRA MBs =============
//-------------------------------------------------------------
//transform size flag for INTRA_4x4 and INTRA_8x8 modes
if (currMB->mb_type == I4MB && p_Vid->Transform8x8Mode)
{
dP = &(currSlice->partArr[partMap[SE_HEADER]]);
TRACE_STRING("transform_size_8x8_flag");
// read CAVLC transform_size_8x8_flag
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
currMB->luma_transform_size_8x8_flag = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
}
else
{
currMB->luma_transform_size_8x8_flag = readMB_transform_size_flag_CABAC(currMB, &dP->de_cabac);
}
if (currMB->luma_transform_size_8x8_flag)
{
currMB->mb_type = I8MB;
memset(&currMB->b8mode, I8MB, 4 * sizeof(char));
memset(&currMB->b8pdir, -1, 4 * sizeof(char));
}
}
else
{
currMB->luma_transform_size_8x8_flag = FALSE;
}
if(p_Vid->active_pps->constrained_intra_pred_flag)
{
if( !IS_INTRA(currMB) )
{
p_Vid->intra_block[mb_nr] = 0;
}
}
//--- init macroblock data ---
if (currMB->mb_type != P8x8)
init_macroblock(currMB);
if (IS_SKIP (currMB)) //keep last macroblock
{
skip_macroblock(currMB);
}
else if(currMB->mb_type != IPCM)
{
// intra prediction modes for a macroblock 4x4 **********************************************
if (IS_INTRA(currMB))
read_ipred_modes(currMB);
// read inter frame vector data *********************************************************
if (IS_INTERMV (currMB) && (currMB->mb_type != P8x8))
{
currSlice->read_motion_info_from_NAL (currMB);
}
// read CBP and Coeffs ***************************************************************
currSlice->read_CBP_and_coeffs_from_NAL (currMB);
}
else
{
//read pcm_alignment_zero_bit and pcm_byte[i]
// here dP is assigned with the same dP as SE_MBTYPE, because IPCM syntax is in the
// same category as MBTYPE
if ( currSlice->dp_mode && currSlice->dpB_NotPresent )
{
concealIPCMcoeffs(currMB);
}
else
{
dP = &(currSlice->partArr[partMap[SE_LUM_DC_INTRA]]);
read_IPCM_coeffs_from_NAL(currSlice, dP);
}
}
return;
}
/*!
************************************************************************
* \brief
* Get the syntax elements from the NAL
************************************************************************
*/
static void read_one_macroblock_b_slice(Macroblock *currMB)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int i;
SyntaxElement currSE;
int mb_nr = currMB->mbAddrX;
DataPartition *dP;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
Macroblock *topMB = NULL;
int prevMbSkipped = 0;
int check_bottom, read_bottom, read_top;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
if (currSlice->mb_aff_frame_flag)
{
if (mb_nr&0x01)
{
topMB= &p_Vid->mb_data[mb_nr-1];
prevMbSkipped = topMB->skip_flag;
}
else
prevMbSkipped = 0;
}
currMB->mb_field = ((mb_nr&0x01) == 0)? FALSE : p_Vid->mb_data[mb_nr-1].mb_field;
update_qp(currMB, p_Vid->qp);
// read MB mode *****************************************************************
dP = &(currSlice->partArr[partMap[SE_MBTYPE]]);
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
currSE.mapping = linfo_ue;
if (p_Vid->active_pps->entropy_coding_mode_flag == CABAC)
{
// read MB skip_flag
int skip;
if (currSlice->mb_aff_frame_flag && ((mb_nr&0x01) == 0||prevMbSkipped))
field_flag_inference(currMB);
CheckAvailabilityOfNeighborsCABAC(currMB);
TRACE_STRING("mb_skip_flag");
skip = readMB_skip_flagInfo_CABAC(currMB, &dP->de_cabac);
currMB->mb_type = !skip;
currMB->skip_flag = skip;
currMB->cbp = !skip;
currMB->ei_flag = 0;
if (skip)
p_Vid->cod_counter=0;
// read MB AFF
if (currSlice->mb_aff_frame_flag)
{
check_bottom=read_bottom=read_top=0;
if ((mb_nr&0x01)==0)
{
check_bottom = currMB->skip_flag;
read_top = !check_bottom;
}
else
{
read_bottom = (topMB->skip_flag && (!currMB->skip_flag));
}
if (read_bottom || read_top)
{
TRACE_STRING("mb_field_decoding_flag");
currMB->mb_field = readFieldModeInfo_CABAC(currMB, &dP->de_cabac);
}
if (check_bottom)
check_next_mb_and_get_field_mode_CABAC(currSlice,dP);
CheckAvailabilityOfNeighborsCABAC(currMB);
}
// read MB type
if (currMB->mb_type != 0 )
{
TRACE_STRING("mb_type");
currMB->mb_type = readMB_typeInfo_CABAC(currMB, &dP->de_cabac);
currMB->ei_flag = 0;
}
}
// VLC Non-Intra
else
{
if(p_Vid->cod_counter == -1)
{
TRACE_STRING("mb_skip_run");
readSyntaxElement_UVLC(&currSE, dP);
p_Vid->cod_counter = currSE.value1;
}
if (p_Vid->cod_counter==0)
{
// read MB aff
if ((currSlice->mb_aff_frame_flag) && (((mb_nr&0x01)==0) || ((mb_nr&0x01) && prevMbSkipped)))
{
TRACE_STRING("mb_field_decoding_flag");
currMB->mb_field = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
}
// read MB type
TRACE_STRING("mb_type");
readSyntaxElement_UVLC(&currSE, dP);
if(currSlice->slice_type == P_SLICE || currSlice->slice_type == SP_SLICE)
++(currSE.value1);
currMB->mb_type = currSE.value1;
currMB->ei_flag = 0;
p_Vid->cod_counter--;
currMB->skip_flag = 0;
}
else
{
p_Vid->cod_counter--;
currMB->mb_type = 0;
currMB->ei_flag = 0;
currMB->skip_flag = 1;
// read field flag of bottom block
if(currSlice->mb_aff_frame_flag)
{
if(p_Vid->cod_counter == 0 && ((mb_nr&0x01) == 0))
{
TRACE_STRING("mb_field_decoding_flag (of coded bottom mb)");
currMB->mb_field = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
dP->bitstream->frame_bitoffset--;
TRACE_DECBITS(1);
}
else if (p_Vid->cod_counter > 0 && ((mb_nr & 0x01) == 0))
{
// check left macroblock pair first
if (mb_is_available(mb_nr - 2, currMB) && ((mb_nr % (p_Vid->PicWidthInMbs * 2))!=0))
{
currMB->mb_field = p_Vid->mb_data[mb_nr-2].mb_field;
}
else
{
// check top macroblock pair
if (mb_is_available(mb_nr - 2*p_Vid->PicWidthInMbs, currMB))
{
currMB->mb_field = p_Vid->mb_data[mb_nr-2*p_Vid->PicWidthInMbs].mb_field;
}
else
currMB->mb_field = FALSE;
}
}
}
}
}
motion->mb_field[mb_nr] = (byte) currMB->mb_field;
currMB->block_y_aff = ((currSlice->mb_aff_frame_flag) && (currMB->mb_field)) ? (mb_nr&0x01) ? (currMB->block_y - 4)>>1 : currMB->block_y >> 1 : currMB->block_y;
p_Vid->siblock[currMB->mb_y][currMB->mb_x] = 0;
currSlice->interpret_mb_mode(currMB);
if(currSlice->mb_aff_frame_flag)
{
if(currMB->mb_field)
{
currSlice->num_ref_idx_l0_active <<=1;
currSlice->num_ref_idx_l1_active <<=1;
}
}
//init NoMbPartLessThan8x8Flag
currMB->NoMbPartLessThan8x8Flag = (IS_DIRECT(currMB) && !(p_Vid->active_sps->direct_8x8_inference_flag))? FALSE: TRUE;
//====== READ 8x8 SUB-PARTITION MODES (modes of 8x8 blocks) and Intra VBST block modes ======
if (currMB->mb_type == P8x8)
{
dP = &(currSlice->partArr[partMap[SE_MBTYPE]]);
if (p_Vid->active_pps->entropy_coding_mode_flag ==CAVLC)
{
currSE.mapping = linfo_ue;
for (i = 0; i < 4; ++i)
{
TRACE_STRING("sub_mb_type");
readSyntaxElement_UVLC(&currSE, dP);
SetB8Mode (currMB, currSE.value1, i);
//set NoMbPartLessThan8x8Flag for P8x8 mode
currMB->NoMbPartLessThan8x8Flag &= (currMB->b8mode[i]==0 && p_Vid->active_sps->direct_8x8_inference_flag) ||
(currMB->b8mode[i]==4);
}
}
else
{
for (i = 0; i < 4; ++i)
{
int value = readB8_typeInfo_CABAC(currSlice, &dP->de_cabac);
SetB8Mode (currMB, value, i);
//set NoMbPartLessThan8x8Flag for P8x8 mode
currMB->NoMbPartLessThan8x8Flag &= (currMB->b8mode[i]==0 && p_Vid->active_sps->direct_8x8_inference_flag) ||
(currMB->b8mode[i]==4);
}
}
//--- init macroblock data ---
init_macroblock (currMB);
currSlice->read_motion_info_from_NAL (currMB);
}
//============= Transform Size Flag for INTRA MBs =============
//-------------------------------------------------------------
//transform size flag for INTRA_4x4 and INTRA_8x8 modes
if (currMB->mb_type == I4MB && p_Vid->Transform8x8Mode)
{
dP = &(currSlice->partArr[partMap[SE_HEADER]]);
TRACE_STRING("transform_size_8x8_flag");
// read CAVLC transform_size_8x8_flag
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
currMB->luma_transform_size_8x8_flag = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
}
else
{
currMB->luma_transform_size_8x8_flag = readMB_transform_size_flag_CABAC(currMB, &dP->de_cabac);
}
if (currMB->luma_transform_size_8x8_flag)
{
currMB->mb_type = I8MB;
memset(&currMB->b8mode, I8MB, 4 * sizeof(char));
memset(&currMB->b8pdir, -1, 4 * sizeof(char));
}
}
else
{
currMB->luma_transform_size_8x8_flag = FALSE;
}
if(p_Vid->active_pps->constrained_intra_pred_flag) // inter frame
{
if( !IS_INTRA(currMB) )
{
p_Vid->intra_block[mb_nr] = 0;
}
}
//--- init macroblock data ---
if (currMB->mb_type != P8x8)
init_macroblock(currMB);
if (IS_DIRECT (currMB) && p_Vid->cod_counter >= 0)
{
currMB->cbp = 0;
reset_coeffs(currSlice);
if (p_Vid->active_pps->entropy_coding_mode_flag ==CABAC)
p_Vid->cod_counter=-1;
}
else if (IS_SKIP (currMB)) //keep last macroblock
{
skip_macroblock(currMB);
}
else if(currMB->mb_type != IPCM)
{
// intra prediction modes for a macroblock 4x4 **********************************************
if (IS_INTRA(currMB))
read_ipred_modes(currMB);
// read inter frame vector data *********************************************************
if (IS_INTERMV (currMB) && (currMB->mb_type != P8x8))
{
currSlice->read_motion_info_from_NAL (currMB);
}
// read CBP and Coeffs ***************************************************************
currSlice->read_CBP_and_coeffs_from_NAL (currMB);
}
else
{
//read pcm_alignment_zero_bit and pcm_byte[i]
// here dP is assigned with the same dP as SE_MBTYPE, because IPCM syntax is in the
// same category as MBTYPE
if ( currSlice->dp_mode && currSlice->dpB_NotPresent )
{
concealIPCMcoeffs(currMB);
}
else
{
dP = &(currSlice->partArr[partMap[SE_LUM_DC_INTRA]]);
read_IPCM_coeffs_from_NAL(currSlice, dP);
}
}
return;
}
/*!
************************************************************************
* \brief
* Initialize decoding engine after decoding an IPCM macroblock
* (for IPCM CABAC 28/11/2003)
*
* \author
* Dong Wang <Dong.Wang@bristol.ac.uk>
************************************************************************
*/
static void init_decoding_engine_IPCM(Slice *currSlice)
{
Bitstream *currStream;
int ByteStartPosition;
int PartitionNumber;
int i;
if(currSlice->dp_mode==PAR_DP_1)
PartitionNumber=1;
else if(currSlice->dp_mode==PAR_DP_3)
PartitionNumber=3;
else
{
printf("Partition Mode is not supported\n");
exit(1);
}
for(i=0;i<PartitionNumber;++i)
{
currStream = currSlice->partArr[i].bitstream;
ByteStartPosition = currStream->read_len;
arideco_start_decoding (&currSlice->partArr[i].de_cabac, currStream->streamBuffer, ByteStartPosition, &currStream->read_len);
}
}
/*!
************************************************************************
* \brief
* Read IPCM pcm_alignment_zero_bit and pcm_byte[i] from stream to currSlice->ipcm
* (for IPCM CABAC and IPCM CAVLC)
*
* \author
* Dong Wang <Dong.Wang@bristol.ac.uk>
************************************************************************
*/
static void read_IPCM_coeffs_from_NAL(Slice *currSlice, struct datapartition *dP)
{
VideoParameters *p_Vid = currSlice->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
int i,j;
//For CABAC, we don't need to read bits to let stream byte aligned
// because we have variable for integer bytes position
if(p_Vid->active_pps->entropy_coding_mode_flag == CABAC)
{
readIPCM_CABAC(currSlice, dP);
init_decoding_engine_IPCM(currSlice);
}
else
{
//read bits to let stream byte aligned
if(((dP->bitstream->frame_bitoffset) & 0x07) != 0)
{
TRACE_STRING("pcm_alignment_zero_bit");
readSyntaxElement_FLC(dP->bitstream, (8 - ((dP->bitstream->frame_bitoffset) & 0x07)));
}
//read luma and chroma IPCM coefficients
TRACE_STRING("pcm_sample_luma");
for(i=0;i<MB_BLOCK_SIZE;++i)
{
for(j=0;j<MB_BLOCK_SIZE;++j)
{
currSlice->ipcm[0][i][j] = readSyntaxElement_FLC(dP->bitstream, p_Vid->bitdepth_luma);
}
}
if ((dec_picture->chroma_format_idc != YUV400) && !IS_INDEPENDENT(p_Vid))
{
TRACE_STRING("pcm_sample_chroma (u)");
for(i=0;i<p_Vid->mb_cr_size_y;++i)
{
for(j=0;j<p_Vid->mb_cr_size_x;++j)
{
currSlice->ipcm[1][i][j] = readSyntaxElement_FLC(dP->bitstream, p_Vid->bitdepth_chroma);
}
}
TRACE_STRING("pcm_sample_chroma (v)");
for(i=0;i<p_Vid->mb_cr_size_y;++i)
{
for(j=0;j<p_Vid->mb_cr_size_x;++j)
{
currSlice->ipcm[2][i][j] = readSyntaxElement_FLC(dP->bitstream, p_Vid->bitdepth_chroma);
}
}
}
}
}
/*!
************************************************************************
* \brief
* If data partition B is lost, conceal PCM sample values with DC.
*
************************************************************************
*/
static void __forceinline read_ipred_iblock(VideoParameters *p_Vid, Macroblock *currMB, Slice *currSlice, DataPartition *dP, int b8)
{
int i, j;
int mostProbableIntraPredMode;
int upIntraPredMode;
int leftIntraPredMode;
int bx, by, bi, bj;
SyntaxElement currSE;
int ts, ls;
PixelPos left_block, top_block;
int dec;
for(j=0;j<2;j++) //loop subblocks
{
by = (b8&2) + j;
bj = currMB->block_y + by;
for(i=0;i<2;i++)
{
int pred_mode;
bx = ((b8&1)<<1) + i;
bi = currMB->block_x + bx;
//get from stream
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
readSyntaxElement_Intra4x4PredictionMode(&currSE, dP->bitstream);
pred_mode = currSE.value1;
}
else
{
pred_mode = readIntraPredMode_CABAC(currSlice, &dP->de_cabac);
}
p_Vid->getNeighbourXPLumaNB(currMB, (bx<<2) - 1, (by<<2), &left_block);
p_Vid->getNeighbourPXLumaNB(currMB, (bx<<2), (by<<2) - 1, &top_block );
//get from array and decode
if (p_Vid->active_pps->constrained_intra_pred_flag)
{
left_block.available = left_block.available ? p_Vid->intra_block[left_block.mb_addr] : 0;
top_block.available = top_block.available ? p_Vid->intra_block[top_block.mb_addr] : 0;
}
// !! KS: not sure if the following is still correct...
ts = ls = 0; // Check to see if the neighboring block is SI
if (currMB->mb_type == I4MB && currSlice->slice_type == SI_SLICE) // need support for MBINTLC1
{
if (left_block.available)
if (p_Vid->siblock [left_block.mb_addr / p_Vid->PicWidthInMbs][left_block.mb_addr % p_Vid->PicWidthInMbs])
ls=1;
if (top_block.available)
if (p_Vid->siblock [top_block.mb_addr / p_Vid->PicWidthInMbs][top_block.mb_addr % p_Vid->PicWidthInMbs])
ts=1;
}
upIntraPredMode = (top_block.available &&(ts == 0)) ? p_Vid->ipredmode[top_block.pos_y>>2 ][top_block.pos_x>>2 ] : -1;
leftIntraPredMode = (left_block.available &&(ls == 0)) ? p_Vid->ipredmode[left_block.pos_y>>2][left_block.pos_x>>2] : -1;
mostProbableIntraPredMode = (upIntraPredMode < 0 || leftIntraPredMode < 0) ? DC_PRED : upIntraPredMode < leftIntraPredMode ? upIntraPredMode : leftIntraPredMode;
dec = (pred_mode == -1) ? mostProbableIntraPredMode : pred_mode + (pred_mode >= mostProbableIntraPredMode);
p_Vid->ipredmode[bj][bi] = dec;
}
}
}
static void __forceinline read_ipred_i8mb(VideoParameters *p_Vid, Macroblock *currMB, Slice *currSlice, DataPartition *dP, int b8)
{
int mostProbableIntraPredMode;
int upIntraPredMode;
int leftIntraPredMode;
int bx, by, bi, bj;
int pred_mode;
SyntaxElement currSE;
int ts, ls;
PixelPos left_block, top_block;
int dec;
by = (b8&2);
bj = currMB->block_y + by;
bx = ((b8&1)<<1);
bi = currMB->block_x + bx;
//get from stream
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
readSyntaxElement_Intra4x4PredictionMode(&currSE, dP->bitstream);
pred_mode = currSE.value1;
}
else
{
pred_mode = readIntraPredMode_CABAC(currSlice, &dP->de_cabac);
}
p_Vid->getNeighbourXPLumaNB(currMB, (bx<<2) - 1, (by<<2), &left_block);
p_Vid->getNeighbourPXLumaNB(currMB, (bx<<2), (by<<2) - 1, &top_block );
//get from array and decode
if (p_Vid->active_pps->constrained_intra_pred_flag)
{
left_block.available = left_block.available ? p_Vid->intra_block[left_block.mb_addr] : 0;
top_block.available = top_block.available ? p_Vid->intra_block[top_block.mb_addr] : 0;
}
// !! KS: not sure if the following is still correct...
ts = ls = 0; // Check to see if the neighboring block is SI
if (currMB->mb_type == I4MB && currSlice->slice_type == SI_SLICE) // need support for MBINTLC1
{
if (left_block.available)
if (p_Vid->siblock [left_block.mb_addr / p_Vid->PicWidthInMbs][left_block.mb_addr % p_Vid->PicWidthInMbs])
ls=1;
if (top_block.available)
if (p_Vid->siblock [top_block.mb_addr / p_Vid->PicWidthInMbs][top_block.mb_addr % p_Vid->PicWidthInMbs])
ts=1;
}
upIntraPredMode = (top_block.available &&(ts == 0)) ? p_Vid->ipredmode[top_block.pos_y>>2 ][top_block.pos_x>>2 ] : -1;
leftIntraPredMode = (left_block.available &&(ls == 0)) ? p_Vid->ipredmode[left_block.pos_y>>2][left_block.pos_x>>2] : -1;
mostProbableIntraPredMode = (upIntraPredMode < 0 || leftIntraPredMode < 0) ? DC_PRED : upIntraPredMode < leftIntraPredMode ? upIntraPredMode : leftIntraPredMode;
dec = (pred_mode == -1) ? mostProbableIntraPredMode : pred_mode + (pred_mode >= mostProbableIntraPredMode);
//set
p_Vid->ipredmode[bj][bi] = dec;
p_Vid->ipredmode[bj][bi+1] = dec;
p_Vid->ipredmode[bj+1][bi] = dec;
p_Vid->ipredmode[bj+1][bi+1] = dec;
}
static void read_ipred_modes(Macroblock *currMB)
{
int b8;
SyntaxElement currSE;
DataPartition *dP;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
char IntraChromaPredModeFlag = IS_INTRA(currMB);
dP = &(currSlice->partArr[partMap[SE_INTRAPREDMODE]]);
for(b8 = 0; b8 < 4; ++b8) //loop 8x8 blocks
{
if (currMB->b8mode[b8]==IBLOCK)
{
IntraChromaPredModeFlag = 1;
read_ipred_iblock(p_Vid, currMB, currSlice, dP, b8);
}
else if (currMB->b8mode[b8]==I8MB)
{
IntraChromaPredModeFlag = 1;
read_ipred_i8mb(p_Vid, currMB, currSlice, dP, b8);
}
}
if (IntraChromaPredModeFlag && (dec_picture->chroma_format_idc != YUV400) && (dec_picture->chroma_format_idc != YUV444))
{
TRACE_STRING("intra_chroma_pred_mode");
dP = &(currSlice->partArr[partMap[SE_INTRAPREDMODE]]);
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
currSE.mapping = linfo_ue;
readSyntaxElement_UVLC(&currSE, dP);
currMB->c_ipred_mode = (char) currSE.value1;
}
else
{
currMB->c_ipred_mode = readCIPredMode_CABAC(currMB, &dP->de_cabac);
}
if (currMB->c_ipred_mode < DC_PRED_8 || currMB->c_ipred_mode > PLANE_8)
{
error("illegal chroma intra pred mode!\n", 600);
}
}
}
/*!
************************************************************************
* \brief
* Get current block spatial neighbors
************************************************************************
*/
void get_neighbors(Macroblock *currMB, // <-- current Macroblock
PixelPos *block, // <--> neighbor blocks
int mb_x, // <-- block x position
int mb_y, // <-- block y position
int blockshape_x // <-- block width
)
{
VideoParameters *p_Vid = currMB->p_Vid;
int i;
p_Vid->getNeighbourXPLumaNB(currMB, mb_x - 1, mb_y , &block[0]); // left
p_Vid->getNeighbourPXLumaNB(currMB, mb_x, mb_y - 1, &block[1]); // up
p_Vid->getNeighbourPXLuma(currMB, mb_x + blockshape_x, mb_y - 1, &block[2]); // upper right
p_Vid->getNeighbourLuma(currMB, mb_x - 1, mb_y - 1, &block[3]); // upper left
for (i = 0; i < 4; i++)
{
block[i].pos_x >>= 2;
block[i].pos_y >>= 2;
}
if (mb_y > 0)
{
if (mb_x < 8) // first column of 8x8 blocks
{
if (mb_y == 8 )
{
if (blockshape_x == MB_BLOCK_SIZE)
block[2].available = 0;
}
else if (mb_x+blockshape_x == 8)
{
block[2].available = 0;
}
}
else if (mb_x + blockshape_x == MB_BLOCK_SIZE)
{
block[2].available = 0;
}
}
if (!block[2].available)
{
block[2] = block[3];
}
}
/* this version is for mb_x == 0, mb_y == 0 and blockshape_x == 16 */
void get_neighbors0016(Macroblock *currMB, // <-- current Macroblock
PixelPos *block // <--> neighbor blocks
)
{
VideoParameters *p_Vid = currMB->p_Vid;
int i;
p_Vid->getNeighbourLeftLuma(currMB, &block[0]); // left
p_Vid->getNeighbourPXLumaNB(currMB, 0, -1, &block[1]); // up
p_Vid->getNeighbourPXLuma(currMB, 16, -1, &block[2]); // upper right
p_Vid->getNeighbourLuma(currMB, -1, -1, &block[3]); // upper left
for (i = 0; i < 4; i++)
{
if (block[i].available)
{
block[i].pos_x >>= 2;
block[i].pos_y >>= 2;
}
}
if (!block[2].available)
{
block[2] = block[3];
}
}
/*!
************************************************************************
* \brief
* Read motion info
************************************************************************
*/
static void read_motion_info_from_NAL_p_slice(Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
Slice *currSlice = currMB->p_Slice;
int mb_nr = currMB->mbAddrX;
DataPartition *dP = NULL;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int partmode = ((currMB->mb_type == P8x8) ? 4 : currMB->mb_type);
int step_h0 = BLOCK_STEP [partmode][0];
int step_v0 = BLOCK_STEP [partmode][1];
h264_ref_t *pic_num;
int j4;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
int list_offset = ((currSlice->mb_aff_frame_flag)&&(currMB->mb_field))? (mb_nr&0x01) ? 4 : 2 : 0;
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
SyntaxElement currSE;
//===== READ REFERENCE PICTURE INDICES =====
dP = &(currSlice->partArr[partMap[SE_REFFRAME]]);
// For LIST_0, if multiple ref. pictures, read LIST_0 reference picture indices for the MB ***********
prepareListforRefIdx (currMB, &currSE, currSlice->num_ref_idx_l0_active, (currMB->mb_type != P8x8) || (!p_Vid->allrefzero));
readMBRefPictureIdx (&currSE, dP, currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
// For LIST_1, if multiple ref. pictures, read LIST_1 reference picture indices for the MB ***********
prepareListforRefIdx (currMB, &currSE, currSlice->num_ref_idx_l1_active, (currMB->mb_type != P8x8) || (!p_Vid->allrefzero));
readMBRefPictureIdx (&currSE, dP, currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
//===== READ MOTION VECTORS =====
dP = &(currSlice->partArr[partMap[SE_MVD]]);
currSE.mapping = linfo_se;
readMBMotionVectors (&currSE, dP, currMB, LIST_0, step_h0, step_v0);
}
else
{
if (currMB->mb_type != P8x8 || !p_Vid->allrefzero)
{
//===== READ REFERENCE PICTURE INDICES =====
dP = &(currSlice->partArr[partMap[SE_REFFRAME]]);
if (currSlice->num_ref_idx_l0_active > 1)
{
// For LIST_0, if multiple ref. pictures, read LIST_0 reference picture indices for the MB ***********
readMBRefPictureIdx_CABAC(dP, currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
}
else
{
readMBRefPictureIdx_CABAC_NoReference(currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
}
if (currSlice->num_ref_idx_l1_active > 1)
{
// For LIST_1, if multiple ref. pictures, read LIST_1 reference picture indices for the MB ***********
readMBRefPictureIdx_CABAC(dP, currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
}
else
{
readMBRefPictureIdx_CABAC_NoReference(currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
}
}
else
{
readMBRefPictureIdx_CABAC_NoReference(currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
readMBRefPictureIdx_CABAC_NoReference(currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
}
//===== READ MOTION VECTORS =====
dP = &(currSlice->partArr[partMap[SE_MVD]]);
readMBMotionVectors_CABAC(dP, currMB, LIST_0, step_h0, step_v0);
}
// LIST_0 Motion vectors
// record reference picture Ids for deblocking decisions
pic_num = dec_picture->ref_pic_num[p_Vid->current_slice_nr][LIST_0 + list_offset];
for(j4 = currMB->block_y; j4 < (currMB->block_y +4);++j4)
{
PicMotion *ref = &motion->motion[LIST_0][j4][currMB->block_x];
ref[0].ref_pic_id = (ref[0].ref_idx >= 0)?pic_num[(short)ref[0].ref_idx]:UNDEFINED_REFERENCE;
ref[1].ref_pic_id = (ref[1].ref_idx >= 0)?pic_num[(short)ref[1].ref_idx]:UNDEFINED_REFERENCE;
ref[2].ref_pic_id = (ref[2].ref_idx >= 0)?pic_num[(short)ref[2].ref_idx]:UNDEFINED_REFERENCE;
ref[3].ref_pic_id = (ref[3].ref_idx >= 0)?pic_num[(short)ref[3].ref_idx]:UNDEFINED_REFERENCE;
}
}
/*!
************************************************************************
* \brief
* Read motion info
************************************************************************
*/
static void read_motion_info_from_NAL_b_slice (Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
Slice *currSlice = currMB->p_Slice;
int i,j,k;
int mb_nr = currMB->mbAddrX;
DataPartition *dP = NULL;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int partmode = ((currMB->mb_type == P8x8) ? 4 : currMB->mb_type);
int step_h0 = BLOCK_STEP [partmode][0];
int step_v0 = BLOCK_STEP [partmode][1];
int i0, j0, j6;
int j4, i4, ii;
StorablePicture *dec_picture = p_Vid->dec_picture;
PicMotionParams *motion = &dec_picture->motion;
MotionParams *colocated;
int mv_scale = 0;
int list_offset = ((currSlice->mb_aff_frame_flag)&&(currMB->mb_field))? (mb_nr&0x01) ? 4 : 2 : 0;
if ((currSlice->mb_aff_frame_flag) && (currMB->mb_field))
{
if(mb_nr&0x01)
{
colocated = &currSlice->p_colocated->bottom;
}
else
{
colocated = &currSlice->p_colocated->top;
}
}
else
{
colocated = &currSlice->p_colocated->frame;
}
if (currMB->mb_type == P8x8)
{
if (currSlice->direct_spatial_mv_pred_flag)
{
char l0_rFrame, l1_rFrame;
short pmvl0[2]={0,0}, pmvl1[2]={0,0};
prepare_direct_params(currMB, dec_picture, pmvl0, pmvl1, &l0_rFrame, &l1_rFrame);
for (k = 0; k < 4; ++k)
{
if (currMB->b8mode[k] == 0)
{
i = currMB->block_x + 2 * (k & 0x01);
for(j = 2 * (k >> 1); j < 2 * (k >> 1)+2;++j)
{
j6 = currMB->block_y_aff + j;
j4 = currMB->block_y + j;
for(i4 = i; i4 < i + 2; ++i4)
{
if (l0_rFrame >= 0)
{
if (!l0_rFrame && ((!colocated->moving_block[j6][i4]) && (!p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)))
{
motion->motion[LIST_0][j4][i4].mv[0] = 0;
motion->motion[LIST_0][j4][i4].mv[1] = 0;
motion->motion[LIST_0][j4][i4].ref_idx = 0;
}
else
{
motion->motion[LIST_0][j4][i4].mv[0] = pmvl0[0];
motion->motion[LIST_0][j4][i4].mv[1] = pmvl0[1];
motion->motion[LIST_0][j4][i4].ref_idx = l0_rFrame;
}
}
else
{
motion->motion[LIST_0][j4][i4].mv[0] = 0;
motion->motion[LIST_0][j4][i4].mv[1] = 0;
motion->motion[LIST_0][j4][i4].ref_idx = -1;
}
if (l1_rFrame >= 0)
{
if (l1_rFrame==0 && ((!colocated->moving_block[j6][i4])&& (!p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)))
{
motion->motion[LIST_1][j4][i4].mv[0] = 0;
motion->motion[LIST_1][j4][i4].mv[1] = 0;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
}
else
{
motion->motion[LIST_1][j4][i4].mv[0] = pmvl1[0];
motion->motion[LIST_1][j4][i4].mv[1] = pmvl1[1];
motion->motion[LIST_1][j4][i4].ref_idx = l1_rFrame;
}
}
else
{
motion->motion[LIST_1][j4][i4].mv[0] = 0;
motion->motion[LIST_1][j4][i4].mv[1] = 0;
motion->motion[LIST_1][j4][i4].ref_idx = -1;
}
if (l0_rFrame <0 && l1_rFrame <0)
{
motion->motion[LIST_0][j4][i4].ref_idx = 0;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
}
}
}
}
}
}
else
{
for (k = 0; k < 4; ++k) // Scan all blocks
{
if (currMB->b8mode[k] == 0)
{
for(j0 = 2 * (k >> 1); j0 < 2 * (k >> 1) + 2; j0 += step_v0)
{
for(i0 = currMB->block_x + 2*(k & 0x01); i0 < currMB->block_x + 2 * (k & 0x01)+2; i0 += step_h0)
{
int refList = colocated->motion[LIST_0 ][currMB->block_y_aff + j0][i0].ref_idx== -1 ? LIST_1 : LIST_0;
int ref_idx = colocated->motion[refList][currMB->block_y_aff + j0][i0].ref_idx;
int mapped_idx = -1, iref;
if (ref_idx == -1)
{
for (j4 = currMB->block_y + j0; j4 < currMB->block_y + j0 + step_v0; ++j4)
{
int h;
for (h=0;h<step_h0;h++)
{
PicMotion *m0 = &motion->motion[LIST_0][j4][i0+h];
PicMotion *m1 = &motion->motion[LIST_1][j4][i0+h];
m0->ref_idx = 0;
m1->ref_idx = 0;
memset(&m0->mv, 0, sizeof(MotionVector));
memset(&m1->mv, 0, sizeof(MotionVector));
}
}
}
else
{
for (iref = 0; iref < imin(currSlice->num_ref_idx_l0_active, p_Vid->listXsize[LIST_0 + list_offset]); ++iref)
{
int curr_mb_field = ((currSlice->mb_aff_frame_flag)&&(currMB->mb_field));
if(p_Vid->structure==0 && curr_mb_field==0)
{
// If the current MB is a frame MB and the colocated is from a field picture,
// then the colocated->ref_pic_id may have been generated from the wrong value of
// frame_poc if it references it's complementary field, so test both POC values
if(p_Vid->listX[0][iref]->top_poc * 2 == colocated->motion[refList][currMB->block_y_aff + j0][i0].ref_pic_id
|| p_Vid->listX[0][iref]->bottom_poc * 2 == colocated->motion[refList][currMB->block_y_aff + j0][i0].ref_pic_id)
{
mapped_idx=iref;
break;
}
else //! invalid index. Default to zero even though this case should not happen
mapped_idx=INVALIDINDEX;
continue;
}
if (dec_picture->ref_pic_num[p_Vid->current_slice_nr][LIST_0 + list_offset][iref]==colocated->motion[refList][currMB->block_y_aff + j0][i0].ref_pic_id)
{
mapped_idx=iref;
break;
}
else //! invalid index. Default to zero even though this case should not happen
mapped_idx=INVALIDINDEX;
}
if (INVALIDINDEX == mapped_idx)
{
error("temporal direct error: colocated block has ref that is unavailable",-1111);
}
for (j = j0; j < j0 + step_v0; ++j)
{
j4 = currMB->block_y + j;
j6 = currMB->block_y_aff + j;
for (i4 = i0; i4 < i0 + step_h0; ++i4)
{
mv_scale = currSlice->mvscale[LIST_0 + list_offset][mapped_idx];
motion->motion[LIST_0][j4][i4].ref_idx = (char) mapped_idx;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
if (mv_scale == 9999 || p_Vid->listX[LIST_0+list_offset][mapped_idx]->is_long_term)
{
for (ii=0; ii < 2; ++ii)
{
motion->motion[LIST_0][j4][i4].mv[ii] = colocated->motion[refList][j6][i4].mv[ii];
motion->motion[LIST_1][j4][i4].mv[ii] = 0;
}
}
else
{
for (ii=0; ii < 2; ++ii)
{
motion->motion[LIST_0][j4][i4].mv[ii] = (short) ((mv_scale * colocated->motion[refList][j6][i4].mv[ii] + 128 ) >> 8);
motion->motion[LIST_1][j4][i4].mv[ii] = (short) (motion->motion[LIST_0][j4][i4].mv[ii] - colocated->motion[refList][j6][i4].mv[ii]);
}
}
}
}
}
}
}
}
}
}
}
if (p_Vid->active_pps->entropy_coding_mode_flag == CAVLC)
{
SyntaxElement currSE;
//===== READ REFERENCE PICTURE INDICES =====
dP = &(currSlice->partArr[partMap[SE_REFFRAME]]);
// For LIST_0, if multiple ref. pictures, read LIST_0 reference picture indices for the MB ***********
prepareListforRefIdx (currMB, &currSE, currSlice->num_ref_idx_l0_active, TRUE);
readMBRefPictureIdx (&currSE, dP, currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
// For LIST_1, if multiple ref. pictures, read LIST_1 reference picture indices for the MB ***********
prepareListforRefIdx (currMB, &currSE, currSlice->num_ref_idx_l1_active, TRUE);
readMBRefPictureIdx (&currSE, dP, currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
//===== READ MOTION VECTORS =====
dP = &(currSlice->partArr[partMap[SE_MVD]]);
currSE.mapping = linfo_se;
// LIST_0 Motion vectors
readMBMotionVectors (&currSE, dP, currMB, LIST_0, step_h0, step_v0);
// LIST_1 Motion vectors
readMBMotionVectors (&currSE, dP, currMB, LIST_1, step_h0, step_v0);
}
else
{
//===== READ REFERENCE PICTURE INDICES =====
dP = &(currSlice->partArr[partMap[SE_REFFRAME]]);
if (currSlice->num_ref_idx_l0_active>1)
{
// For LIST_0, if multiple ref. pictures, read LIST_0 reference picture indices for the MB ***********
readMBRefPictureIdx_CABAC(dP, currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
}
else
{
readMBRefPictureIdx_CABAC_NoReference(currMB, &motion->motion[LIST_0][currMB->block_y], LIST_0, step_v0, step_h0);
}
if (currSlice->num_ref_idx_l1_active > 1)
{
// For LIST_1, if multiple ref. pictures, read LIST_1 reference picture indices for the MB ***********
readMBRefPictureIdx_CABAC(dP, currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
}
else
{
readMBRefPictureIdx_CABAC_NoReference(currMB, &motion->motion[LIST_1][currMB->block_y], LIST_1, step_v0, step_h0);
}
//===== READ MOTION VECTORS =====
dP = &(currSlice->partArr[partMap[SE_MVD]]);
// LIST_0 Motion vectors
readMBMotionVectors_CABAC(dP, currMB, LIST_0, step_h0, step_v0);
// LIST_1 Motion vectors
readMBMotionVectors_CABAC(dP, currMB, LIST_1, step_h0, step_v0);
}
// record reference picture Ids for deblocking decisions
for (k = LIST_0; k <= LIST_1; ++k)
{
const h264_ref_t *rec_pic_num = dec_picture->ref_pic_num[p_Vid->current_slice_nr][k+list_offset];
PicMotion **list_motion = &motion->motion[k][currMB->block_y];
for(j4 = 0; j4 < 4 ;++j4)
{
PicMotion *m = &list_motion[j4][currMB->block_x];
m[0].ref_pic_id = (m[0].ref_idx>=0)?rec_pic_num[(short)m[0].ref_idx]:UNDEFINED_REFERENCE;
m[1].ref_pic_id = (m[1].ref_idx>=0)?rec_pic_num[(short)m[1].ref_idx]:UNDEFINED_REFERENCE;
m[2].ref_pic_id = (m[2].ref_idx>=0)?rec_pic_num[(short)m[2].ref_idx]:UNDEFINED_REFERENCE;
m[3].ref_pic_id = (m[3].ref_idx>=0)?rec_pic_num[(short)m[3].ref_idx]:UNDEFINED_REFERENCE;
}
}
}
/*!
************************************************************************
* \brief
* Get the Prediction from the Neighboring Blocks for Number of
* Nonzero Coefficients
*
* Luma Blocks
************************************************************************
*/
static int predict_nnz_cb(Macroblock *currMB, int i,int j)
{
VideoParameters *p_Vid = currMB->p_Vid;
PixelPos pix;
int pred_nnz = 0;
int cnt = 0;
// left block
p_Vid->getNeighbourLuma(currMB, i - 1, j, &pix);
if (IS_INTRA(currMB) && pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz = p_Vid->nz_coeff [pix.mb_addr ][1][pix.y>>2][pix.x>>2];
++cnt;
}
// top block
p_Vid->getNeighbourLuma(currMB, i, j - 1, &pix);
if (IS_INTRA(currMB) && pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz += p_Vid->nz_coeff [pix.mb_addr ][1][pix.y>>2][pix.x>>2];
++cnt;
}
if (cnt==2)
{
++pred_nnz;
pred_nnz>>=1;
}
return pred_nnz;
}
static int predict_nnz_cr(Macroblock *currMB, int i,int j)
{
VideoParameters *p_Vid = currMB->p_Vid;
PixelPos pix;
int pred_nnz = 0;
int cnt = 0;
// left block
p_Vid->getNeighbourLuma(currMB, i - 1, j, &pix);
if (IS_INTRA(currMB) && pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz = p_Vid->nz_coeff [pix.mb_addr ][2][pix.y>>2][pix.x>>2];
++cnt;
}
// top block
p_Vid->getNeighbourLuma(currMB, i, j - 1, &pix);
if (IS_INTRA(currMB) && pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz += p_Vid->nz_coeff [pix.mb_addr ][2][pix.y>>2][pix.x>>2];
++cnt;
}
if (cnt==2)
{
++pred_nnz;
pred_nnz>>=1;
}
return pred_nnz;
}
static int predict_nnz_luma(Macroblock *currMB, int i,int j)
{
VideoParameters *p_Vid = currMB->p_Vid;
PixelPos pix;
int pred_nnz = 0;
int cnt = 0;
// left block
p_Vid->getNeighbourXPLuma(currMB, i - 1, j, &pix);
if (pix.available)
{
pred_nnz = p_Vid->nz_coeff [pix.mb_addr ][0][pix.y>>2][pix.x>>2];
++cnt;
}
// top block
p_Vid->getNeighbourPXLuma(currMB, i, j - 1, &pix);
if (pix.available)
{
pred_nnz += p_Vid->nz_coeff [pix.mb_addr ][0][pix.y>>2][pix.x>>2];
++cnt;
}
if (cnt==2)
{
++pred_nnz;
pred_nnz>>=1;
}
return pred_nnz;
}
static int predict_nnz_luma_intra(Macroblock *currMB, int i,int j)
{
VideoParameters *p_Vid = currMB->p_Vid;
PixelPos pix;
int pred_nnz = 0;
int cnt = 0;
// left block
p_Vid->getNeighbourXPLuma(currMB, i - 1, j, &pix);
if (pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz = p_Vid->nz_coeff [pix.mb_addr ][0][pix.y>>2][pix.x>>2];
++cnt;
}
// top block
p_Vid->getNeighbourPXLuma(currMB, i, j - 1, &pix);
if (pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz += p_Vid->nz_coeff [pix.mb_addr ][0][pix.y>>2][pix.x>>2];
++cnt;
}
if (cnt==2)
{
++pred_nnz;
pred_nnz>>=1;
}
return pred_nnz;
}
/*!
************************************************************************
* \brief
* Get the Prediction from the Neighboring Blocks for Number of
* Nonzero Coefficients
*
* Chroma Blocks
************************************************************************
*/
static int predict_nnz_chroma_inter(Macroblock *currMB, int i,int j)
{
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
PixelPos pix;
int pred_nnz = 0;
int cnt = 0;
if (dec_picture->chroma_format_idc != YUV444)
{
//YUV420 and YUV422
// left block
p_Vid->getNeighbour(currMB, ((i&0x01)<<2) - 1, j, p_Vid->mb_size[IS_CHROMA], &pix);
if (pix.available)
{
pred_nnz = p_Vid->nz_coeff [pix.mb_addr ][1][pix.y>>2][2 * (i>>1) + (pix.x>>2)];
++cnt;
}
// top block
p_Vid->getNeighbour(currMB, ((i&0x01)<<2), j - 1, p_Vid->mb_size[IS_CHROMA], &pix);
if (pix.available)
{
pred_nnz += p_Vid->nz_coeff [pix.mb_addr ][1][pix.y>>2][2 * (i>>1) + (pix.x>>2)];
++cnt;
}
if (cnt==2)
{
++pred_nnz;
pred_nnz >>= 1;
}
}
return pred_nnz;
}
static int predict_nnz_chroma_intra(Macroblock *currMB, int i,int j)
{
VideoParameters *p_Vid = currMB->p_Vid;
StorablePicture *dec_picture = p_Vid->dec_picture;
PixelPos pix;
int pred_nnz = 0;
int cnt = 0;
if (dec_picture->chroma_format_idc != YUV444)
{
//YUV420 and YUV422
// left block
p_Vid->getNeighbour(currMB, ((i&0x01)<<2) - 1, j, p_Vid->mb_size[IS_CHROMA], &pix);
if (pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz = p_Vid->nz_coeff [pix.mb_addr ][1][pix.y>>2][2 * (i>>1) + (pix.x>>2)];
++cnt;
}
// top block
p_Vid->getNeighbour(currMB, ((i&0x01)<<2), j - 1, p_Vid->mb_size[IS_CHROMA], &pix);
if (pix.available && p_Vid->active_pps->constrained_intra_pred_flag && (p_Vid->currentSlice->dp_mode==PAR_DP_3))
{
pix.available &= p_Vid->intra_block[pix.mb_addr];
if (!pix.available)
++cnt;
}
if (pix.available)
{
pred_nnz += p_Vid->nz_coeff [pix.mb_addr ][1][pix.y>>2][2 * (i>>1) + (pix.x>>2)];
++cnt;
}
if (cnt==2)
{
++pred_nnz;
pred_nnz >>= 1;
}
}
return pred_nnz;
}
/*!
************************************************************************
* \brief
* Reads coeff of an 4x4 block (CAVLC)
*
* \author
* Karl Lillevold <karll@real.com>
* contributions by James Au <james@ubvideo.com>
************************************************************************
*/
static void readCoeff4x4_CAVLC_Luma (Macroblock *currMB,
int i, int j, int levarr[16], int runarr[16],
int *number_coefficients)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int mb_nr = currMB->mbAddrX;
SyntaxElement currSE;
DataPartition *dP;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
Bitstream *currStream;
int k, code, vlcnum;
int numcoeff = 0, numtrailingones, numcoeff_vlc;
int level_two_or_higher;
int numones, totzeros, abslevel;
int zerosleft;
int nnz;
static const int incVlc[] = {0,3,6,12,24,48,32768}; // maximum vlc = 6
p_Vid->nz_coeff[mb_nr][0][j][i] = 0;
if (IS_INTRA (currMB))
{
dP = &(currSlice->partArr[partMap[SE_LUM_AC_INTRA]]);
nnz = predict_nnz_luma_intra(currMB, i<<2, j<<2);
}
else
{
dP = &(currSlice->partArr[partMap[SE_LUM_AC_INTER]]);
nnz = predict_nnz_luma(currMB, i<<2, j<<2);
}
if (nnz < 2)
{
numcoeff_vlc = 0;
}
else if (nnz < 4)
{
numcoeff_vlc = 1;
}
else if (nnz < 8)
{
numcoeff_vlc = 2;
}
else //
{
numcoeff_vlc = 3;
}
currStream = dP->bitstream;
readSyntaxElement_NumCoeffTrailingOnes(&currSE, currStream, numcoeff_vlc);
numcoeff = currSE.value1;
numtrailingones = currSE.value2;
p_Vid->nz_coeff[mb_nr][0][j][i] = (byte) numcoeff;
memzero64(levarr);
memzero64(runarr);
numones = numtrailingones;
*number_coefficients = numcoeff;
if (numcoeff)
{
if (numtrailingones)
{
code = readSyntaxElement_FLC(currStream, numtrailingones);
for (k=0;k<numtrailingones;k++)
{
#ifdef _M_IX86
levarr[k+numcoeff-numtrailingones] = ((_bittest((const long *)&code, k)<<1) ^ 0xFFFFFFFF) + 2;
#else
levarr[k+numcoeff-numtrailingones] = (code>>k)&1 ? -1:1;
#endif
}
}
// decode levels
level_two_or_higher = (numcoeff > 3 && numtrailingones == 3)? 0 : 1;
vlcnum = (numcoeff > 10 && numtrailingones < 3) ? 1 : 0;
for (k = numcoeff - 1 - numtrailingones; k >= 0; k--)
{
int level;
if (vlcnum == 0)
level=readSyntaxElement_Level_VLC0(currStream);
else
level=readSyntaxElement_Level_VLCN(vlcnum, currStream);
if (level_two_or_higher)
{
level += (level > 0) ? 1 : -1;
level_two_or_higher = 0;
}
levarr[k] = level;
abslevel = iabs(levarr[k]);
if (abslevel == 1)
++numones;
// update VLC table
if (abslevel > incVlc[vlcnum])
++vlcnum;
if (k == numcoeff - 1 - numtrailingones && abslevel >3)
vlcnum = 2;
}
if (numcoeff < 16)
{
// decode total run
vlcnum = numcoeff - 1;
totzeros = readSyntaxElement_TotalZeros(currStream, vlcnum);
}
else
{
totzeros = 0;
}
// decode run before each coefficient
zerosleft = totzeros;
i = numcoeff - 1;
if (zerosleft > 0 && i > 0)
{
do
{
// select VLC for runbefore
vlcnum = imin(zerosleft - 1, RUNBEFORE_NUM_M1);
runarr[i] = readSyntaxElement_Run(currStream, vlcnum);
zerosleft -= runarr[i];
i --;
} while (zerosleft != 0 && i != 0);
}
runarr[i] = zerosleft;
} // if numcoeff
}
static void readCoeff4x4_CAVLC_ChromaAC(Macroblock *currMB,
int i, int j, int levarr[16], int runarr[16],
int *number_coefficients)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int mb_nr = currMB->mbAddrX;
SyntaxElement currSE;
DataPartition *dP;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
Bitstream *currStream;
int k, code, vlcnum;
int numcoeff = 0, numtrailingones, numcoeff_vlc;
int level_two_or_higher;
int numones, totzeros, abslevel;
int zerosleft, ntr;
int nnz;
static const int incVlc[] = {0,3,6,12,24,48,32768}; // maximum vlc = 6
TRACE_PRINTF("ChrDC");
p_Vid->nz_coeff[mb_nr][0][j][i] = 0;
if (IS_INTRA (currMB))
{
dP = &(currSlice->partArr[partMap[SE_CHR_AC_INTRA]]);
nnz = predict_nnz_chroma_intra(currMB, i, ((j-4)<<2));
}
else
{
dP = &(currSlice->partArr[partMap[SE_CHR_AC_INTER]]);
nnz = predict_nnz_chroma_inter(currMB, i, ((j-4)<<2));
}
currStream = dP->bitstream;
// luma or chroma AC
if (nnz < 2)
{
numcoeff_vlc = 0;
}
else if (nnz < 4)
{
numcoeff_vlc = 1;
}
else if (nnz < 8)
{
numcoeff_vlc = 2;
}
else //
{
numcoeff_vlc = 3;
}
readSyntaxElement_NumCoeffTrailingOnes(&currSE, currStream, numcoeff_vlc);
numcoeff = currSE.value1;
numtrailingones = currSE.value2;
p_Vid->nz_coeff[mb_nr][0][j][i] = (byte) numcoeff;
memzero64(levarr);
memzero64(runarr);
numones = numtrailingones;
*number_coefficients = numcoeff;
if (numcoeff)
{
if (numtrailingones)
{
code = readSyntaxElement_FLC (currStream, numtrailingones);
ntr = numtrailingones;
for (k = numcoeff - 1; k > numcoeff - 1 - numtrailingones; k--)
{
ntr --;
levarr[k] = (code>>ntr)&1 ? -1 : 1;
}
}
// decode levels
level_two_or_higher = (numcoeff > 3 && numtrailingones == 3)? 0 : 1;
vlcnum = (numcoeff > 10 && numtrailingones < 3) ? 1 : 0;
for (k = numcoeff - 1 - numtrailingones; k >= 0; k--)
{
#if TRACE
snprintf(currSE.tracestring,
TRACESTRING_SIZE, "%s lev (%d,%d) k=%d vlc=%d ", type, i, j, k, vlcnum);
#endif
int level;
if (vlcnum == 0)
level=readSyntaxElement_Level_VLC0(currStream);
else
level=readSyntaxElement_Level_VLCN(vlcnum, currStream);
if (level_two_or_higher)
{
level += (level > 0) ? 1 : -1;
level_two_or_higher = 0;
}
levarr[k] = level;
abslevel = iabs(levarr[k]);
if (abslevel == 1)
++numones;
// update VLC table
if (abslevel > incVlc[vlcnum])
++vlcnum;
if (k == numcoeff - 1 - numtrailingones && abslevel >3)
vlcnum = 2;
}
if (numcoeff < 15)
{
// decode total run
vlcnum = numcoeff - 1;
totzeros = readSyntaxElement_TotalZeros(currStream, vlcnum);
}
else
{
totzeros = 0;
}
// decode run before each coefficient
zerosleft = totzeros;
i = numcoeff - 1;
if (zerosleft > 0 && i > 0)
{
do
{
// select VLC for runbefore
vlcnum = imin(zerosleft - 1, RUNBEFORE_NUM_M1);
runarr[i] = readSyntaxElement_Run(currStream, vlcnum);
zerosleft -= runarr[i];
i --;
} while (zerosleft != 0 && i != 0);
}
runarr[i] = zerosleft;
} // if numcoeff
}
static void readCoeff4x4_CAVLC_ChromaDC(Macroblock *currMB, int i, int j, int levarr[16], int runarr[16], int *number_coefficients)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int mb_nr = currMB->mbAddrX;
SyntaxElement currSE;
DataPartition *dP;
Bitstream *currStream;
int k, code, vlcnum;
int numcoeff = 0, numtrailingones;
int level_two_or_higher;
int numones, totzeros, abslevel;
int zerosleft, ntr;
int max_coeff_num;
static const int incVlc[] = {0,3,6,12,24,48,32768}; // maximum vlc = 6
max_coeff_num = p_Vid->num_cdc_coeff;
TRACE_PRINTF("ChrDC");
p_Vid->nz_coeff[mb_nr][0][j][i] = 0;
if (IS_INTRA (currMB))
dP = &(currSlice->partArr[assignSE2partition[currSlice->dp_mode][SE_CHR_DC_INTRA]]);
else
dP = &(currSlice->partArr[assignSE2partition[currSlice->dp_mode][SE_CHR_DC_INTER]]);
currStream = dP->bitstream;
readSyntaxElement_NumCoeffTrailingOnesChromaDC(p_Vid, &currSE, currStream);
numcoeff = currSE.value1;
numtrailingones = currSE.value2;
memzero64(levarr);
memzero64(runarr);
numones = numtrailingones;
*number_coefficients = numcoeff;
if (numcoeff)
{
if (numtrailingones)
{
code = readSyntaxElement_FLC (currStream, numtrailingones);
ntr = numtrailingones;
for (k = numcoeff - 1; k > numcoeff - 1 - numtrailingones; k--)
{
ntr --;
levarr[k] = (code>>ntr)&1 ? -1 : 1;
}
}
// decode levels
level_two_or_higher = (numcoeff > 3 && numtrailingones == 3)? 0 : 1;
vlcnum = (numcoeff > 10 && numtrailingones < 3) ? 1 : 0;
for (k = numcoeff - 1 - numtrailingones; k >= 0; k--)
{
int level;
if (vlcnum == 0)
level=readSyntaxElement_Level_VLC0(currStream);
else
level=readSyntaxElement_Level_VLCN(vlcnum, currStream);
if (level_two_or_higher)
{
level += (level > 0) ? 1 : -1;
level_two_or_higher = 0;
}
levarr[k] = level;
abslevel = iabs(levarr[k]);
if (abslevel == 1)
++numones;
// update VLC table
if (abslevel > incVlc[vlcnum])
++vlcnum;
if (k == numcoeff - 1 - numtrailingones && abslevel >3)
vlcnum = 2;
}
if (numcoeff < max_coeff_num)
{
// decode total run
vlcnum = numcoeff - 1;
totzeros = readSyntaxElement_TotalZerosChromaDC(p_Vid, currStream, vlcnum);
}
else
{
totzeros = 0;
}
// decode run before each coefficient
zerosleft = totzeros;
i = numcoeff - 1;
if (zerosleft > 0 && i > 0)
{
do
{
// select VLC for runbefore
vlcnum = imin(zerosleft - 1, RUNBEFORE_NUM_M1);
runarr[i] = readSyntaxElement_Run(currStream, vlcnum);
zerosleft -= runarr[i];
i --;
} while (zerosleft != 0 && i != 0);
}
runarr[i] = zerosleft;
} // if numcoeff
}
static void readCoeff4x4_CAVLC(Macroblock *currMB, int block_type, int i, int j, int levarr[16], int runarr[16], int *number_coefficients)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int mb_nr = currMB->mbAddrX;
SyntaxElement currSE;
DataPartition *dP;
Bitstream *currStream;
int k, code, vlcnum;
int numcoeff = 0, numtrailingones, numcoeff_vlc;
int level_two_or_higher;
int numones, totzeros, abslevel;
int zerosleft, ntr, dptype = 0;
int max_coeff_num, nnz;
static const int incVlc[] = {0,3,6,12,24,48,32768}; // maximum vlc = 6
switch (block_type)
{
case LUMA:
readCoeff4x4_CAVLC_Luma(currMB, i, j, levarr, runarr, number_coefficients);
return;
case LUMA_INTRA16x16DC:
max_coeff_num = 16;
TRACE_PRINTF("Lum16DC");
dptype = SE_LUM_DC_INTRA;
p_Vid->nz_coeff[mb_nr][0][j][i] = 0;
break;
case LUMA_INTRA16x16AC:
max_coeff_num = 15;
TRACE_PRINTF("Lum16AC");
dptype = SE_LUM_AC_INTRA;
p_Vid->nz_coeff[mb_nr][0][j][i] = 0;
break;
case CB:
max_coeff_num = 16;
TRACE_PRINTF("Luma_add1");
dptype = (IS_INTRA (currMB)) ? SE_LUM_AC_INTRA : SE_LUM_AC_INTER;
p_Vid->nz_coeff[mb_nr][1][j][i] = 0;
break;
case CB_INTRA16x16DC:
max_coeff_num = 16;
TRACE_PRINTF("Luma_add1_16DC");
dptype = SE_LUM_DC_INTRA;
p_Vid->nz_coeff[mb_nr][1][j][i] = 0;
break;
case CB_INTRA16x16AC:
max_coeff_num = 15;
TRACE_PRINTF("Luma_add1_16AC");
dptype = SE_LUM_AC_INTRA;
p_Vid->nz_coeff[mb_nr][1][j][i] = 0;
break;
case CR:
max_coeff_num = 16;
TRACE_PRINTF("Luma_add2");
dptype = (IS_INTRA (currMB)) ? SE_LUM_AC_INTRA : SE_LUM_AC_INTER;
p_Vid->nz_coeff[mb_nr][2][j][i] = 0;
break;
case CR_INTRA16x16DC:
max_coeff_num = 16;
TRACE_PRINTF("Luma_add2_16DC");
dptype = SE_LUM_DC_INTRA;
p_Vid->nz_coeff[mb_nr][2][j][i] = 0;
break;
case CR_INTRA16x16AC:
max_coeff_num = 15;
TRACE_PRINTF("Luma_add1_16AC");
dptype = SE_LUM_AC_INTRA;
p_Vid->nz_coeff[mb_nr][2][j][i] = 0;
break;
case CHROMA_DC:
readCoeff4x4_CAVLC_ChromaDC(currMB, i, j, levarr, runarr, number_coefficients);
return;
case CHROMA_AC:
readCoeff4x4_CAVLC_ChromaAC(currMB, i, j, levarr, runarr, number_coefficients);
return;
default:
error ("readCoeff4x4_CAVLC: invalid block type", 600);
p_Vid->nz_coeff[mb_nr][0][j][i] = 0;
break;
}
dP = &(currSlice->partArr[assignSE2partition[currSlice->dp_mode][dptype]]);
currStream = dP->bitstream;
// luma or chroma AC
if(block_type==LUMA_INTRA16x16DC || block_type==LUMA_INTRA16x16AC)
{
nnz = predict_nnz_luma_intra(currMB, i<<2, j<<2);
}
else if (block_type==CB || block_type==CB_INTRA16x16DC || block_type==CB_INTRA16x16AC)
{
nnz = predict_nnz_cb(currMB, i<<2, j<<2);
}
else
{
nnz = predict_nnz_cr(currMB, i<<2, j<<2);
}
if (nnz < 2)
{
numcoeff_vlc = 0;
}
else if (nnz < 4)
{
numcoeff_vlc = 1;
}
else if (nnz < 8)
{
numcoeff_vlc = 2;
}
else //
{
numcoeff_vlc = 3;
}
readSyntaxElement_NumCoeffTrailingOnes(&currSE, currStream, numcoeff_vlc);
numcoeff = currSE.value1;
numtrailingones = currSE.value2;
if(block_type==LUMA_INTRA16x16DC || block_type==LUMA_INTRA16x16AC)
p_Vid->nz_coeff[mb_nr][0][j][i] = (byte) numcoeff;
else if (block_type==CB || block_type==CB_INTRA16x16DC || block_type==CB_INTRA16x16AC)
p_Vid->nz_coeff[mb_nr][1][j][i] = (byte) numcoeff;
else
p_Vid->nz_coeff[mb_nr][2][j][i] = (byte) numcoeff;
memzero64(levarr);
memzero64(runarr);
numones = numtrailingones;
*number_coefficients = numcoeff;
if (numcoeff)
{
if (numtrailingones)
{
code = readSyntaxElement_FLC(currStream, numtrailingones);
ntr = numtrailingones;
for (k = numcoeff - 1; k > numcoeff - 1 - numtrailingones; k--)
{
ntr --;
levarr[k] = (code>>ntr)&1 ? -1 : 1;
}
}
// decode levels
level_two_or_higher = (numcoeff > 3 && numtrailingones == 3)? 0 : 1;
vlcnum = (numcoeff > 10 && numtrailingones < 3) ? 1 : 0;
for (k = numcoeff - 1 - numtrailingones; k >= 0; k--)
{
int level;
if (vlcnum == 0)
level=readSyntaxElement_Level_VLC0(currStream);
else
level=readSyntaxElement_Level_VLCN(vlcnum, currStream);
if (level_two_or_higher)
{
level += (level > 0) ? 1 : -1;
level_two_or_higher = 0;
}
levarr[k] = level;
abslevel = iabs(levarr[k]);
if (abslevel == 1)
++numones;
// update VLC table
if (abslevel > incVlc[vlcnum])
++vlcnum;
if (k == numcoeff - 1 - numtrailingones && abslevel >3)
vlcnum = 2;
}
if (numcoeff < max_coeff_num)
{
// decode total run
vlcnum = numcoeff - 1;
totzeros = readSyntaxElement_TotalZeros(currStream, vlcnum);
}
else
{
totzeros = 0;
}
// decode run before each coefficient
zerosleft = totzeros;
i = numcoeff - 1;
if (zerosleft > 0 && i > 0)
{
do
{
// select VLC for runbefore
vlcnum = imin(zerosleft - 1, RUNBEFORE_NUM_M1);
runarr[i] = readSyntaxElement_Run(currStream, vlcnum);
zerosleft -= runarr[i];
i --;
} while (zerosleft != 0 && i != 0);
}
runarr[i] = zerosleft;
} // if numcoeff
}
/*!
************************************************************************
* \brief
* Get coefficients (run/level) of 4x4 blocks in a SMB
* from the NAL (CABAC Mode)
************************************************************************
*/
static void readCompCoeff4x4SMB_I16MB_CABAC(Macroblock *currMB, int context, h264_short_block_t *blocks, int block_y, int block_x, int64 *cbp_blk)
{
// start_scan == 1
int i,j,k;
RunLevel rl;
VideoParameters *p_Vid = currMB->p_Vid;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
const byte *pos_scan4x4 = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN_1D : FIELD_SCAN_1D;
const byte *pos_scan_4x4;
// make distinction between INTRA and INTER coded luminance coefficients
int type = (currMB->is_intra_block ? SE_LUM_AC_INTRA : SE_LUM_AC_INTER);
DecodingEnvironment *de_cabac = &currSlice->partArr[partMap[type]].de_cabac;
for (j = 0; j < BLOCK_SIZE_8x8; j += BLOCK_SIZE)
{
currMB->subblock_y = block_y + j; // position for coeff_count ctx
for (i = 0; i < BLOCK_SIZE_8x8; i += BLOCK_SIZE)
{
int16_t *block = (int16_t *)(*blocks++);
currMB->subblock_x = block_x + i; // position for coeff_count ctx
pos_scan_4x4 = &pos_scan4x4[1];
for(k = 0; k < 16; k++)
{
rl = readRunLevel_CABAC(currMB, de_cabac, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
block[*pos_scan_4x4++] = rl.level;
}
else
break;
}
}
}
}
#ifdef _M_IX86
static void readCompCoeff4x4SMB_CABAC(Macroblock *currMB, int context, h264_short_block_t *blocks, int block_y, int block_x, int64_t *cbp_blk64)
#else
static void readCompCoeff4x4SMB_CABAC(Macroblock *currMB, int context, h264_short_block_t *blocks, int block_y, int block_x, int64_t *cbp_blk)
#endif
{
int k;
RunLevel rl;
VideoParameters *p_Vid = currMB->p_Vid;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
const byte *pos_scan4x4 = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN_1D : FIELD_SCAN_1D;
const byte *pos_scan_4x4;
int16_t *block;
#ifdef _M_IX86
int32_t *cbp_blk = (int32_t *)cbp_blk64;
#endif
//h264_short_block_t *blocks = &currSlice->cof4[pl][cof4_pos_to_subblock[block_y>>2][block_x>>2]];
DecodingEnvironment *de_cabac_dc, *de_cabac_ac;
/*
* make distinction between INTRA and INTER coded
* luminance coefficients
*/
if (currMB->is_intra_block)
{
de_cabac_dc = &currSlice->partArr[partMap[SE_LUM_DC_INTRA]].de_cabac;
de_cabac_ac = &currSlice->partArr[partMap[SE_LUM_AC_INTRA]].de_cabac;
}
else
{
de_cabac_dc = &currSlice->partArr[partMap[SE_LUM_DC_INTER]].de_cabac;
de_cabac_ac = &currSlice->partArr[partMap[SE_LUM_AC_INTER]].de_cabac;
}
// for (j = block_y; j < (block_y+BLOCK_SIZE_8x8); j += 4)
block = (int16_t *)(*blocks++);
currMB->subblock_y = block_y; // position for coeff_count ctx
currMB->subblock_x = block_x; // position for coeff_count ctx
pos_scan_4x4 = pos_scan4x4;
rl = readRunLevel_CABAC(currMB, de_cabac_dc, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
*cbp_blk |= 1 << (block_y + (block_x >> 2)) ;
block[*pos_scan_4x4++] = rl.level;
for(k = 0; k < 16; ++k)
{
rl = readRunLevel_CABAC(currMB, de_cabac_ac, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
block[*pos_scan_4x4++] = rl.level;
}
else
break;
}
}
block = (int16_t *)(*blocks++);
currMB->subblock_x += 4; // position for coeff_count ctx
pos_scan_4x4 = pos_scan4x4;
rl = readRunLevel_CABAC(currMB, de_cabac_dc, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
*cbp_blk |= 2 << (block_y + (block_x >> 2)) ;
block[*pos_scan_4x4++] = rl.level;
for(k = 0; k < 16; ++k)
{
rl = readRunLevel_CABAC(currMB, de_cabac_ac, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
block[*pos_scan_4x4++] = rl.level;
}
else
break;
}
}
/* ---- */
block = (int16_t *)(*blocks++);
currMB->subblock_y += 4; // position for coeff_count ctx
currMB->subblock_x = block_x; // position for coeff_count ctx
pos_scan_4x4 = pos_scan4x4;
rl = readRunLevel_CABAC(currMB, de_cabac_dc, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
*cbp_blk |= 16 << (block_y + (block_x >> 2)) ;
block[*pos_scan_4x4++] = rl.level;
for(k = 0; k < 16; ++k)
{
rl = readRunLevel_CABAC(currMB, de_cabac_ac, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
block[*pos_scan_4x4++] = rl.level;
}
else
break;
}
}
block = (int16_t *)(*blocks++);
currMB->subblock_x += 4; // position for coeff_count ctx
pos_scan_4x4 = pos_scan4x4;
rl = readRunLevel_CABAC(currMB, de_cabac_dc, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
*cbp_blk |= 32 << (block_y + (block_x >> 2)) ;
block[*pos_scan_4x4++] = rl.level;
for(k = 0; k < 16; ++k)
{
rl = readRunLevel_CABAC(currMB, de_cabac_ac, context);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
block[*pos_scan_4x4++] = rl.level;
}
else
break;
}
}
}
#if defined(_DEBUG) || defined(_M_IX64)
static void inv_level_coefficients(h264_short_block_t *blocks, const int (*InvLevelScale)[4], int qp_per)
{
int j, b;
for (b = 0;b<4;b++)
{
h264_short_block_row_t *block = blocks[b];
for (j = 0; j < 4; ++j)
{
if (block[j][0]) block[j][0]= rshift_rnd_sf((block[j][0] * InvLevelScale[j][0]) << qp_per, 4);
if (block[j][1]) block[j][1]= rshift_rnd_sf((block[j][1] * InvLevelScale[j][1]) << qp_per, 4);
if (block[j][2]) block[j][2]= rshift_rnd_sf((block[j][2] * InvLevelScale[j][2]) << qp_per, 4);
if (block[j][3]) block[j][3]= rshift_rnd_sf((block[j][3] * InvLevelScale[j][3]) << qp_per, 4);
}
}
}
#else
void inv_level_coefficients(h264_short_block_t *blocks, const int (*InvLevelScale)[4], int qp_per);
#endif
static void inv_level_coefficients_AC(h264_short_block_t *blocks, const int (*InvLevelScale)[4], int qp_per)
{
int b;
for (b = 0;b<4;b++)
{
h264_short_block_row_t *block = blocks[b];
if (block[0][1]) block[0][1]= rshift_rnd_sf((block[0][1] * InvLevelScale[0][1]) << qp_per, 4);
if (block[0][2]) block[0][2]= rshift_rnd_sf((block[0][2] * InvLevelScale[0][2]) << qp_per, 4);
if (block[0][3]) block[0][3]= rshift_rnd_sf((block[0][3] * InvLevelScale[0][3]) << qp_per, 4);
if (block[1][0]) block[1][0]= rshift_rnd_sf((block[1][0] * InvLevelScale[1][0]) << qp_per, 4);
if (block[1][1]) block[1][1]= rshift_rnd_sf((block[1][1] * InvLevelScale[1][1]) << qp_per, 4);
if (block[1][2]) block[1][2]= rshift_rnd_sf((block[1][2] * InvLevelScale[1][2]) << qp_per, 4);
if (block[1][3]) block[1][3]= rshift_rnd_sf((block[1][3] * InvLevelScale[1][3]) << qp_per, 4);
if (block[2][0]) block[2][0]= rshift_rnd_sf((block[2][0] * InvLevelScale[2][0]) << qp_per, 4);
if (block[2][1]) block[2][1]= rshift_rnd_sf((block[2][1] * InvLevelScale[2][1]) << qp_per, 4);
if (block[2][2]) block[2][2]= rshift_rnd_sf((block[2][2] * InvLevelScale[2][2]) << qp_per, 4);
if (block[2][3]) block[2][3]= rshift_rnd_sf((block[2][3] * InvLevelScale[2][3]) << qp_per, 4);
if (block[3][0]) block[3][0]= rshift_rnd_sf((block[3][0] * InvLevelScale[3][0]) << qp_per, 4);
if (block[3][1]) block[3][1]= rshift_rnd_sf((block[3][1] * InvLevelScale[3][1]) << qp_per, 4);
if (block[3][2]) block[3][2]= rshift_rnd_sf((block[3][2] * InvLevelScale[3][2]) << qp_per, 4);
if (block[3][3]) block[3][3]= rshift_rnd_sf((block[3][3] * InvLevelScale[3][3]) << qp_per, 4);
}
}
/*!
************************************************************************
* \brief
* Get coefficients (run/level) of all 4x4 blocks in a MB
* from the NAL (CABAC Mode)
************************************************************************
*/
static void readCompCoeff4x4MB_CABAC(Macroblock *currMB, ColorPlane pl, int intra, int (*InvLevelScale4x4)[4], int qp_per, int cbp)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int start_scan = IS_I16MB (currMB)? 1 : 0;
int64 *cbp_blk = &currMB->cbp_blk[pl];
int context;
h264_short_block_t *blocks = currSlice->cof4[pl];
currMB->is_intra_block = intra;
if( pl == PLANE_Y || IS_INDEPENDENT(p_Vid) )
context = (IS_I16MB(currMB) ? LUMA_16AC: LUMA_4x4);
else if (pl == PLANE_U)
context = (IS_I16MB(currMB) ? CB_16AC: CB_4x4);
else
context = (IS_I16MB(currMB) ? CR_16AC: CR_4x4);
if (start_scan == 0)
{
if (currMB->is_lossless == FALSE)
{
if (cbp & 1)
{
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[0], 0, 0, cbp_blk);
inv_level_coefficients(&blocks[0], InvLevelScale4x4, qp_per);
}
if (cbp & 2)
{
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[4], 0, 8, cbp_blk);
inv_level_coefficients(&blocks[4], InvLevelScale4x4, qp_per);
}
if (cbp & 4)
{
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[8], 8, 0, cbp_blk);
inv_level_coefficients(&blocks[8], InvLevelScale4x4, qp_per);
}
if (cbp & 8)
{
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[12], 8, 8, cbp_blk);
inv_level_coefficients(&blocks[12], InvLevelScale4x4, qp_per);
}
}
else
{
if (cbp & 1)
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[0], 0, 0, cbp_blk);
if (cbp & 2)
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[4], 0, 8, cbp_blk);
if (cbp & 4)
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[8], 8, 0, cbp_blk);
if (cbp & 8)
readCompCoeff4x4SMB_CABAC(currMB, context, &blocks[12], 8, 8, cbp_blk);
}
}
else
{
if (currMB->is_lossless == FALSE)
{
if (cbp & 1) // are there any coeff in current block at all
{
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[0], 0, 0, cbp_blk);
inv_level_coefficients_AC(&blocks[0], InvLevelScale4x4, qp_per);
}
if (cbp & 2) // are there any coeff in current block at all
{
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[4], 0, 8, cbp_blk);
inv_level_coefficients_AC(&blocks[4], InvLevelScale4x4, qp_per);
}
if (cbp & 4) // are there any coeff in current block at all
{
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[8], 8, 0, cbp_blk);
inv_level_coefficients_AC(&blocks[8], InvLevelScale4x4, qp_per);
}
if (cbp & 8) // are there any coeff in current block at all
{
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[12], 8, 8, cbp_blk);
inv_level_coefficients_AC(&blocks[12], InvLevelScale4x4, qp_per);
}
}
else
{
if (cbp & 1)
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[0], 0, 0, cbp_blk);
if (cbp & 2)
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[4], 0, 8, cbp_blk);
if (cbp & 4)
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[8], 8, 0, cbp_blk);
if (cbp & 8)
readCompCoeff4x4SMB_I16MB_CABAC(currMB, context, &blocks[12], 8, 8, cbp_blk);
}
}
}
/*!
************************************************************************
* \brief
* Get coefficients (run/level) of one 8x8 block
* from the NAL (CABAC Mode)
************************************************************************
*/
static void readCompCoeff8x8_CABAC_Lossless(Macroblock *currMB, ColorPlane pl, int b8)
{
if (currMB->cbp & (1<<b8)) // are there any coefficients in the current block
{
VideoParameters *p_Vid = currMB->p_Vid;
int transform_pl = IS_INDEPENDENT(p_Vid) ? p_Vid->colour_plane_id : pl;
int scan;
short *tcoeffs;
int k;
RunLevel rl;
int context;
DataPartition *dP;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int cbp_mask = (int64) 51 << (4 * b8 - 2 * (b8 & 0x01)); // corresponds to 110011, as if all four 4x4 blocks contain coeff, shifted to block position
int64 *cur_cbp = &currMB->cbp_blk[pl];
// select scan type
const byte *pos_scan8x8 = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN8x8_1D : FIELD_SCAN8x8_1D;
int qp_per = p_Vid->qp_per_matrix[ currMB->qp_scaled[pl] ];
int qp_rem = p_Vid->qp_rem_matrix[ currMB->qp_scaled[pl] ];
const int *InvLevelScale8x8 = IS_INTRA(currMB)? currSlice->InvLevelScale8x8_Intra[transform_pl][qp_rem] : currSlice->InvLevelScale8x8_Inter[transform_pl][qp_rem];
currMB->is_intra_block = IS_INTRA(currMB);
// === set offset in current macroblock ===
tcoeffs = (short *)(currSlice->mb_rres8[pl][b8]);
currMB->subblock_x = (b8&0x01) << 3; // position for coeff_count ctx
currMB->subblock_y = (b8 >> 1) << 3; // position for coeff_count ctx
if (pl==PLANE_Y || IS_INDEPENDENT(p_Vid))
context = LUMA_8x8;
else if (pl==PLANE_U)
context = CB_8x8;
else
context = CR_8x8;
for(k=0; (k < 65);++k)
{
//============ read =============
/*
* make distinction between INTRA and INTER coded
* luminance coefficients
*/
int type = ((currMB->is_intra_block == 1)
? (k==0 ? SE_LUM_DC_INTRA : SE_LUM_AC_INTRA)
: (k==0 ? SE_LUM_DC_INTER : SE_LUM_AC_INTER));
dP = &(currSlice->partArr[partMap[type]]);
rl = readRunLevel_CABAC(currMB, &(dP->de_cabac), context);
//============ decode =============
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan8x8 += rl.run;
scan = *pos_scan8x8++;
*cur_cbp |= cbp_mask;
tcoeffs[scan] = rl.level;
}
else
break;
}
}
}
static void readCompCoeff8x8_CABAC_Intra(Macroblock *currMB, ColorPlane pl, int b8)
{
if (currMB->cbp & (1<<b8)) // are there any coefficients in the current block
{
VideoParameters *p_Vid = currMB->p_Vid;
int transform_pl = IS_INDEPENDENT(p_Vid) ? p_Vid->colour_plane_id : pl;
int scan;
short *tcoeffs;
RunLevel rl;
int k;
int context;
DecodingEnvironment *cabac;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int cbp_mask = (int64) 51 << (4 * b8 - 2 * (b8 & 0x01)); // corresponds to 110011, as if all four 4x4 blocks contain coeff, shifted to block position
int64 *cur_cbp = &currMB->cbp_blk[pl];
// select scan type
const byte *pos_scan8x8 = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN8x8_1D : FIELD_SCAN8x8_1D;
int qp_per = p_Vid->qp_per_matrix[ currMB->qp_scaled[pl] ];
int qp_rem = p_Vid->qp_rem_matrix[ currMB->qp_scaled[pl] ];
const int *InvLevelScale8x8 = currSlice->InvLevelScale8x8_Intra[transform_pl][qp_rem];
currMB->is_intra_block = 1;
// === set offset in current macroblock ===
tcoeffs = (short *)(currSlice->mb_rres8[pl][b8]);
currMB->subblock_x = (b8&0x01) << 3; // position for coeff_count ctx
currMB->subblock_y = (b8 >> 1) << 3; // position for coeff_count ctx
if (pl==PLANE_Y || IS_INDEPENDENT(p_Vid))
context = LUMA_8x8;
else if (pl==PLANE_U)
context = CB_8x8;
else
context = CR_8x8;
// Read DC
cabac = &(currSlice->partArr[partMap[SE_LUM_DC_INTRA]].de_cabac);
rl = readRunLevel_CABAC(currMB, cabac, context);
//============ decode =============
if (rl.level != 0) /* leave if level == 0 */
{
*cur_cbp |= cbp_mask;
pos_scan8x8 += rl.run;
scan = *pos_scan8x8++;
tcoeffs[scan] = rshift_rnd_sf((rl.level * InvLevelScale8x8[scan]) << qp_per, 6); // dequantization
// AC coefficients
cabac = &(currSlice->partArr[partMap[SE_LUM_AC_INTRA]].de_cabac);
k = 64;
do
{
rl = readRunLevel_CABAC(currMB, cabac, context);
//============ decode =============
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan8x8 += rl.run;
scan = *pos_scan8x8++;
tcoeffs[scan] = rshift_rnd_sf((rl.level * InvLevelScale8x8[scan]) << qp_per, 6); // dequantization
}
else
break;
} while (--k);
}
}
}
static void readCompCoeff8x8_CABAC_Inter(Macroblock *currMB, ColorPlane pl, int b8)
{
if (currMB->cbp & (1<<b8)) // are there any coefficients in the current block
{
VideoParameters *p_Vid = currMB->p_Vid;
int transform_pl = IS_INDEPENDENT(p_Vid) ? p_Vid->colour_plane_id : pl;
int scan;
short *tcoeffs;
int k;
RunLevel rl;
int context;
DecodingEnvironment *cabac;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int cbp_mask = (int64) 51 << (4 * b8 - 2 * (b8 & 0x01)); // corresponds to 110011, as if all four 4x4 blocks contain coeff, shifted to block position
int64 *cur_cbp = &currMB->cbp_blk[pl];
// select scan type
const byte *pos_scan8x8 = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN8x8_1D : FIELD_SCAN8x8_1D;
int qp_per = p_Vid->qp_per_matrix[ currMB->qp_scaled[pl] ];
int qp_rem = p_Vid->qp_rem_matrix[ currMB->qp_scaled[pl] ];
const int *InvLevelScale8x8 = currSlice->InvLevelScale8x8_Inter[transform_pl][qp_rem];
currMB->is_intra_block = 0;
// === set offset in current macroblock ===
tcoeffs = (short *)(currSlice->mb_rres8[pl][b8]);
currMB->subblock_x = (b8&0x01) << 3; // position for coeff_count ctx
currMB->subblock_y = (b8 >> 1) << 3; // position for coeff_count ctx
if (pl==PLANE_Y || IS_INDEPENDENT(p_Vid))
context = LUMA_8x8;
else if (pl==PLANE_U)
context = CB_8x8;
else
context = CR_8x8;
// Read DC
cabac = &(currSlice->partArr[partMap[SE_LUM_DC_INTER]].de_cabac);
rl = readRunLevel_CABAC(currMB, cabac, context);
//============ decode =============
if (rl.level != 0) /* leave if level == 0 */
{
*cur_cbp |= cbp_mask;
pos_scan8x8 += rl.run;
scan = *pos_scan8x8++;
tcoeffs[scan] = rshift_rnd_sf((rl.level * InvLevelScale8x8[scan]) << qp_per, 6); // dequantization
// AC coefficients
cabac = &(currSlice->partArr[partMap[SE_LUM_AC_INTER]].de_cabac);
k=64;
do
{
rl = readRunLevel_CABAC(currMB, cabac, context);
//============ decode =============
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan8x8 += rl.run;
scan = *pos_scan8x8++;
tcoeffs[scan] = rshift_rnd_sf((rl.level * InvLevelScale8x8[scan]) << qp_per, 6); // dequantization
}
else
break;
} while (--k);
}
}
}
/*!
************************************************************************
* \brief
* Get coefficients (run/level) of 8x8 blocks in a MB
* from the NAL (CABAC Mode)
************************************************************************
*/
static void readCompCoeff8x8MB_CABAC(Macroblock *currMB, ColorPlane pl)
{
//======= 8x8 transform size & CABAC ========
if(currMB->is_lossless == FALSE)
{
if (IS_INTRA(currMB))
{
readCompCoeff8x8_CABAC_Intra(currMB, pl, 0);
readCompCoeff8x8_CABAC_Intra(currMB, pl, 1);
readCompCoeff8x8_CABAC_Intra(currMB, pl, 2);
readCompCoeff8x8_CABAC_Intra(currMB, pl, 3);
}
else
{
readCompCoeff8x8_CABAC_Inter(currMB, pl, 0);
readCompCoeff8x8_CABAC_Inter(currMB, pl, 1);
readCompCoeff8x8_CABAC_Inter(currMB, pl, 2);
readCompCoeff8x8_CABAC_Inter(currMB, pl, 3);
}
}
else
{
readCompCoeff8x8_CABAC_Lossless(currMB, pl, 0);
readCompCoeff8x8_CABAC_Lossless(currMB, pl, 1);
readCompCoeff8x8_CABAC_Lossless(currMB, pl, 2);
readCompCoeff8x8_CABAC_Lossless(currMB, pl, 3);
}
}
/*!
************************************************************************
* \brief
* Get coefficients (run/level) of 4x4 blocks in a MB
* from the NAL (CABAC Mode)
************************************************************************
*/
static void readCompCoeff4x4MB_CAVLC (Macroblock *currMB, ColorPlane pl, int (*InvLevelScale4x4)[4], int qp_per, int cbp, h264_4x4_byte nzcoeff)
{
int block_y, block_x, b8;
int i, j, k;
int i0, j0;
__declspec(align(32)) int levarr[16], runarr[16];
int numcoeff;
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
const byte (*pos_scan4x4)[2] = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN : FIELD_SCAN;
const byte *pos_scan_4x4 = pos_scan4x4[0];
int start_scan = IS_I16MB(currMB) ? 1 : 0;
int64 *cur_cbp = &currMB->cbp_blk[pl];
int coef_ctr, cur_context;
memzero64(levarr);
memzero64(runarr);
if (IS_I16MB(currMB))
{
if (pl == PLANE_Y)
cur_context = LUMA_INTRA16x16AC;
else if (pl == PLANE_U)
cur_context = CB_INTRA16x16AC;
else
cur_context = CR_INTRA16x16AC;
}
else
{
if (pl == PLANE_Y)
cur_context = LUMA;
else if (pl == PLANE_U)
cur_context = CB;
else
cur_context = CR;
}
if (currMB->is_lossless == FALSE)
{
for (block_y = 0; block_y < 4; block_y += 2) /* all modes */
{
for (block_x = 0; block_x < 4; block_x += 2)
{
b8 = (block_y + (block_x >> 1));
if (cbp & (1 << b8)) // test if the block contains any coefficients
{
for (j=block_y << 2; j < (block_y + 2) << 2; j += BLOCK_SIZE)
{
for (i=block_x << 2; i < (block_x + 2) << 2; i += BLOCK_SIZE)
{
readCoeff4x4_CAVLC(currMB, cur_context, i >> 2, j >> 2, levarr, runarr, &numcoeff);
pos_scan_4x4 = pos_scan4x4[start_scan];
for (k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0)
{
pos_scan_4x4 += (runarr[k] << 1);
i0 = *pos_scan_4x4++;
j0 = *pos_scan_4x4++;
// inverse quant for 4x4 transform only
*cur_cbp |= (int64) 1 << (j + (i >> 2));
currSlice->cof4[pl][cof4_pos_to_subblock[j>>2][i>>2]][j0][i0]= rshift_rnd_sf((levarr[k] * InvLevelScale4x4[j0][i0])<<qp_per, 4);
}
}
}
}
}
else
{
for (j=0; j < 2; j++)
{
for (i=0;i<2;i++)
{
nzcoeff[block_y+j][block_x+i]=0;
}
}
}
}
}
}
else
{
for (block_y=0; block_y < 4; block_y += 2) /* all modes */
{
for (block_x=0; block_x < 4; block_x += 2)
{
b8 = 2*(block_y>>1) + (block_x>>1);
if (cbp & (1<<b8)) /* are there any coeff in current block at all */
{
for (j=block_y; j < block_y+2; ++j)
{
for (i=block_x; i < block_x+2; ++i)
{
readCoeff4x4_CAVLC(currMB, cur_context, i, j, levarr, runarr, &numcoeff);
coef_ctr = start_scan - 1;
for (k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0)
{
coef_ctr += runarr[k]+1;
i0=pos_scan4x4[coef_ctr][0];
j0=pos_scan4x4[coef_ctr][1];
*cur_cbp |= (int64) 1 << ((j<<2) + i);
currSlice->cof4[pl][cof4_pos_to_subblock[j>>2][i>>2]][j0][i0]= levarr[k];
}
}
}
}
}
else
{
for (j=0; j < 2; j++)
{
for (i=0;i<2;i++)
{
nzcoeff[block_y+j][block_x+i]=0;
}
}
}
}
}
}
}
/*!
************************************************************************
* \brief
* Get coefficients (run/level) of 4x4 blocks in a MB
* from the NAL (CABAC Mode)
************************************************************************
*/
static void readCompCoeff8x8MB_CAVLC (Macroblock *currMB, ColorPlane pl, const int *InvLevelScale8x8, int qp_per, int cbp, h264_4x4_byte nzcoeff)
{
int block_y, block_x, b4, b8;
int i,j,k;
int scan;
__declspec(align(32)) int levarr[16] = {0}, runarr[16] = {0};
int numcoeff;
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
const byte *pos_scan8x8 = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN8x8_1D : FIELD_SCAN8x8_1D;
int start_scan = IS_I16MB(currMB) ? 1 : 0;
int64 *cur_cbp = &currMB->cbp_blk[pl];
int coef_ctr, cur_context;
short *coefficients;
if (IS_I16MB(currMB))
{
if (pl == PLANE_Y)
cur_context = LUMA_INTRA16x16AC;
else if (pl == PLANE_U)
cur_context = CB_INTRA16x16AC;
else
cur_context = CR_INTRA16x16AC;
}
else
{
if (pl == PLANE_Y)
cur_context = LUMA;
else if (pl == PLANE_U)
cur_context = CB;
else
cur_context = CR;
}
if (currMB->is_lossless == FALSE)
{
for (block_y=0; block_y < 4; block_y += 2) /* all modes */
{
for (block_x=0; block_x < 4; block_x += 2)
{
b8 = block_y + (block_x>>1);
coefficients =(short *)(currSlice->mb_rres8[pl][b8]);
if (cbp & (1<<b8)) /* are there any coeff in current block at all */
{
for (j=block_y; j < block_y+2; ++j)
{
for (i=block_x; i < block_x+2; ++i)
{
readCoeff4x4_CAVLC(currMB, cur_context, i, j, levarr, runarr, &numcoeff);
coef_ctr = start_scan - 1;
for (k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0)
{
coef_ctr += runarr[k]+1;
// do same as CABAC for deblocking: any coeff in the 8x8 marks all the 4x4s
//as containing coefficients
*cur_cbp |= 51 << ((block_y<<2) + block_x);
b4 = (coef_ctr << 2) + 2*(j - block_y)+(i - block_x);
scan = pos_scan8x8[b4];
coefficients[scan] = rshift_rnd_sf((levarr[k] * InvLevelScale8x8[scan])<<qp_per, 6); // dequantization
}
}//else (!currMB->luma_transform_size_8x8_flag)
}
}
}
else
{
for (j=block_y; j < block_y+2; ++j)
{
memset(&nzcoeff[j][block_x], 0, 2 * sizeof(byte));
}
}
}
}
}
else // inverse quant for 8x8 transform
{
for (block_y=0; block_y < 4; block_y += 2) /* all modes */
{
for (block_x=0; block_x < 4; block_x += 2)
{
b8 = 2*(block_y>>1) + (block_x>>1);
coefficients =(short *)(currSlice->mb_rres8[pl][b8]);
if (cbp & (1<<b8)) /* are there any coeff in current block at all */
{
for (j=block_y; j < block_y+2; ++j)
{
for (i=block_x; i < block_x+2; ++i)
{
readCoeff4x4_CAVLC(currMB, cur_context, i, j, levarr, runarr, &numcoeff);
coef_ctr = start_scan - 1;
for (k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0)
{
coef_ctr += runarr[k]+1;
// do same as CABAC for deblocking: any coeff in the 8x8 marks all the 4x4s
//as containing coefficients
*cur_cbp |= 51 << ((block_y<<2) + block_x);
b4 = 2*(j-block_y)+(i-block_x);
scan=pos_scan8x8[coef_ctr*4+b4];
coefficients[scan] = levarr[k];
}
}
}
}
}
else
{
for (j=block_y; j < block_y+2; ++j)
{
memset(&nzcoeff[j][block_x], 0, 2 * sizeof(byte));
}
}
}
}
}
}
/*!
************************************************************************
* \brief
* Data partitioning: Check if neighboring macroblock is needed for
* CAVLC context decoding, and disable current MB if data partition
* is missing.
************************************************************************
*/
static void check_dp_neighbors (Macroblock *currMB)
{
VideoParameters *p_Vid = currMB->p_Vid;
if (IS_INTER (currMB) || (IS_INTRA (currMB) && !(p_Vid->active_pps->constrained_intra_pred_flag)) )
{
PixelPos up, left;
p_Vid->getNeighbourLeft(currMB, p_Vid->mb_size[1], &left);
p_Vid->getNeighbourUp(currMB, p_Vid->mb_size[1], &up);
if (left.available)
{
currMB->dpl_flag |= p_Vid->mb_data[left.mb_addr].dpl_flag;
}
if (up.available)
{
currMB->dpl_flag |= p_Vid->mb_data[up.mb_addr].dpl_flag;
}
}
}
/*!
************************************************************************
* \brief
* Get coded block pattern and coefficients (run/level)
* from the NAL
************************************************************************
*/
static void read_CBP_and_coeffs_from_NAL_CABAC(Macroblock *currMB)
{
int i,j,k;
int cbp;
SyntaxElement currSE;
DataPartition *dP = NULL;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int coef_ctr, i0, j0, b8;
int ll;
RunLevel rl;
int qp_per, qp_rem;
VideoParameters *p_Vid = currMB->p_Vid;
int intra = IS_INTRA (currMB);
int smb = ((p_Vid->type==SP_SLICE) && !intra) || (p_Vid->type == SI_SLICE && currMB->mb_type == SI4MB);
int uv;
int qp_per_uv[2];
int qp_rem_uv[2];
int temp[4];
int b4;
StorablePicture *dec_picture = p_Vid->dec_picture;
int yuv = dec_picture->chroma_format_idc - 1;
int m6[4];
int need_transform_size_flag;
int (*InvLevelScale4x4)[4] = NULL;
// select scan type
const byte (*pos_scan4x4)[2] = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN : FIELD_SCAN;
const byte *pos_scan4x4_1d = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN_1D : FIELD_SCAN_1D;
const byte *pos_scan4x4_dc = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN_DC : FIELD_SCAN_DC;
const byte *pos_scan_4x4;
// QPI
//init constants for every chroma qp offset
if (dec_picture->chroma_format_idc != YUV400)
{
for (i=0; i<2; ++i)
{
qp_per_uv[i] = p_Vid->qp_per_matrix[ currMB->qp_scaled[i + 1] ];
qp_rem_uv[i] = p_Vid->qp_rem_matrix[ currMB->qp_scaled[i + 1] ];
}
}
// read CBP if not new intra mode
if (!IS_I16MB (currMB))
{
//===== C B P =====
//---------------------
int type = (currMB->mb_type == I4MB || currMB->mb_type == SI4MB || currMB->mb_type == I8MB)
? SE_CBP_INTRA
: SE_CBP_INTER;
dP = &(currSlice->partArr[partMap[type]]);
currMB->cbp = cbp = readCBP_CABAC(currMB, &(dP->de_cabac));
TRACE_STRING("coded_block_pattern");
//============= Transform size flag for INTER MBs =============
//-------------------------------------------------------------
need_transform_size_flag = (((currMB->mb_type >= 1 && currMB->mb_type <= 3)||
(IS_DIRECT(currMB) && p_Vid->active_sps->direct_8x8_inference_flag) ||
(currMB->NoMbPartLessThan8x8Flag))
&& currMB->mb_type != I8MB && currMB->mb_type != I4MB
&& (currMB->cbp&15)
&& p_Vid->Transform8x8Mode);
if (need_transform_size_flag)
{
dP = &(currSlice->partArr[partMap[SE_HEADER]]);
TRACE_STRING("transform_size_8x8_flag");
// read CAVLC transform_size_8x8_flag
currMB->luma_transform_size_8x8_flag = readMB_transform_size_flag_CABAC(currMB, &(dP->de_cabac));
}
//===== DQUANT =====
//----------------------
// Delta quant only if nonzero coeffs
if (cbp !=0)
{
read_delta_quant_CABAC(&currSE, dP, currMB, partMap, (!intra) ? SE_DELTA_QUANT_INTER : SE_DELTA_QUANT_INTRA);
if (currSlice->dp_mode)
{
if (!intra && currSlice->dpC_NotPresent )
currMB->dpl_flag = 1;
if( intra && currSlice->dpB_NotPresent )
{
currMB->ei_flag = 1;
currMB->dpl_flag = 1;
}
// check for prediction from neighbours
check_dp_neighbors (currMB);
if (currMB->dpl_flag)
{
cbp = 0;
currMB->cbp = cbp;
}
}
}
}
else
{
cbp = currMB->cbp;
}
if (IS_I16MB (currMB)) // read DC coeffs for new intra modes
{
read_delta_quant_CABAC(&currSE, dP, currMB, partMap, SE_DELTA_QUANT_INTRA);
macroblock_set_dc_pred(p_Vid, currMB->block_x, currMB->block_y);
if (currSlice->dp_mode)
{
if (currSlice->dpB_NotPresent)
{
currMB->ei_flag = 1;
currMB->dpl_flag = 1;
}
check_dp_neighbors (currMB);
if (currMB->dpl_flag)
{
currMB->cbp = cbp = 0;
}
}
if (!currMB->dpl_flag)
{
pos_scan_4x4 = pos_scan4x4_dc;
{
dP = &(currSlice->partArr[partMap[SE_LUM_DC_INTRA]]);
currMB->is_intra_block = 1;
for(k = 0; k < 17 ; k++)
{
rl = readRunLevel_CABAC(currMB, &(dP->de_cabac), LUMA_16DC);
if (rl.level != 0) /* leave if level == 0 */
{
pos_scan_4x4 += rl.run;
currSlice->cof4[0][*pos_scan_4x4++][0][0] = rl.level;// add new intra DC coeff
}
else
break;
}
}
if(currMB->is_lossless == FALSE)
itrans_2(currMB, (ColorPlane) p_Vid->colour_plane_id);// transform new intra DC
}
}
update_qp(currMB, p_Vid->qp);
qp_per = p_Vid->qp_per_matrix[ currMB->qp_scaled[p_Vid->colour_plane_id] ];
qp_rem = p_Vid->qp_rem_matrix[ currMB->qp_scaled[p_Vid->colour_plane_id] ];
//init quant parameters for chroma
if (dec_picture->chroma_format_idc != YUV400)
{
for(i=0; i < 2; ++i)
{
qp_per_uv[i] = p_Vid->qp_per_matrix[ currMB->qp_scaled[i + 1] ];
qp_rem_uv[i] = p_Vid->qp_rem_matrix[ currMB->qp_scaled[i + 1] ];
}
}
InvLevelScale4x4 = intra? currSlice->InvLevelScale4x4_Intra[p_Vid->colour_plane_id][qp_rem] : currSlice->InvLevelScale4x4_Inter[p_Vid->colour_plane_id][qp_rem];
// luma coefficients
{
//======= Other Modes & CABAC ========
//------------------------------------
if (cbp)
{
if(currMB->luma_transform_size_8x8_flag)
{
//======= 8x8 transform size & CABAC ========
readCompCoeff8x8MB_CABAC (currMB, PLANE_Y);
}
else
{
readCompCoeff4x4MB_CABAC (currMB, PLANE_Y, intra, InvLevelScale4x4, qp_per, cbp);
}
}
}
if ( p_Vid->active_sps->chroma_format_idc==YUV444 && !IS_INDEPENDENT(p_Vid) )
{
for (uv = 0; uv < 2; ++uv )
{
/*----------------------16x16DC Luma_Add----------------------*/
if (IS_I16MB (currMB)) // read DC coeffs for new intra modes
{
macroblock_set_dc_pred(p_Vid, currMB->block_x, currMB->block_y);
{
int context;
dP = &(currSlice->partArr[partMap[SE_LUM_DC_INTRA]]);
if( IS_INDEPENDENT(p_Vid) )
context = LUMA_16DC;
else
context = (uv==0) ? CB_16DC : CR_16DC;
currMB->is_intra_block = 1;
coef_ctr = -1;
for(k=0;k<17;++k)
{
rl = readRunLevel_CABAC(currMB, &dP->de_cabac, context);
if (rl.level != 0) // leave if level == 0
{
coef_ctr += rl.run + 1;
currSlice->cof4[uv + 1][pos_scan4x4_1d[coef_ctr]][0][0] = rl.level;
}
else
break;
} //k loop
} // else CAVLC
if(currMB->is_lossless == FALSE)
{
itrans_2(currMB, (ColorPlane) (uv + 1)); // transform new intra DC
}
} //IS_I16MB
update_qp(currMB, p_Vid->qp);
qp_per = p_Vid->qp_per_matrix[ (p_Vid->qp + p_Vid->bitdepth_luma_qp_scale) ];
qp_rem = p_Vid->qp_rem_matrix[ (p_Vid->qp + p_Vid->bitdepth_luma_qp_scale) ];
//init constants for every chroma qp offset
qp_per_uv[uv] = p_Vid->qp_per_matrix[ (currMB->qpc[uv] + p_Vid->bitdepth_chroma_qp_scale) ];
qp_rem_uv[uv] = p_Vid->qp_rem_matrix[ (currMB->qpc[uv] + p_Vid->bitdepth_chroma_qp_scale) ];
InvLevelScale4x4 = intra? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
{
if (cbp)
{
if(currMB->luma_transform_size_8x8_flag)
{
//======= 8x8 transform size & CABAC ========
readCompCoeff8x8MB_CABAC(currMB, (ColorPlane) (PLANE_U + uv));
}
else //4x4
{
readCompCoeff4x4MB_CABAC(currMB, (ColorPlane) (PLANE_U + uv), intra, InvLevelScale4x4, qp_per_uv[uv], cbp);
}
}
}
}
} //444
else if ((dec_picture->chroma_format_idc != YUV400) && (dec_picture->chroma_format_idc != YUV444))
{
//========================== CHROMA DC ============================
//-----------------------------------------------------------------
// chroma DC coeff
if(cbp>15)
{
if (dec_picture->chroma_format_idc == YUV420)
{
for (ll=0;ll<3;ll+=2)
{
uv = ll>>1;
InvLevelScale4x4 = intra ? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
//===================== CHROMA DC YUV420 ======================
memzero16(&currSlice->cofu[0]);
coef_ctr=-1;
{
int type = (intra ? SE_CHR_DC_INTRA : SE_CHR_DC_INTER);
currMB->is_intra_block = intra;
currMB->is_v_block = ll;
dP = &(currSlice->partArr[partMap[type]]);
for(k = 0; k < (p_Vid->num_cdc_coeff + 1);++k)
{
rl = readRunLevel_CABAC(currMB, &(dP->de_cabac), CHROMA_DC);
if (rl.level != 0)
{
currMB->cbp_blk[0] |= 0xf0000 << (ll<<1) ;
coef_ctr += rl.run + 1;
// Bug: currSlice->cofu has only 4 entries, hence coef_ctr MUST be <4 (which is
// caught by the assert(). If it is bigger than 4, it starts patching the
// p_Vid->predmode pointer, which leads to bugs later on.
//
// This assert() should be left in the code, because it captures a very likely
// bug early when testing in error prone environments (or when testing NAL
// functionality).
assert (coef_ctr < p_Vid->num_cdc_coeff);
currSlice->cofu[coef_ctr&3]=rl.level;
}
else
break;
}
}
if (smb || (currMB->is_lossless == TRUE)) // check to see if MB type is SPred or SIntra4x4
{
currSlice->cof4[uv + 1][0][0][0] = currSlice->cofu[0];
currSlice->cof4[uv + 1][1][0][0] = currSlice->cofu[1];
currSlice->cof4[uv + 1][2][0][0] = currSlice->cofu[2];
currSlice->cof4[uv + 1][3][0][0] = currSlice->cofu[3];
}
else
{
ihadamard2x2(currSlice->cofu, temp);
currSlice->cof4[uv + 1][0][0][0] = (((temp[0] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
currSlice->cof4[uv + 1][1][0][0] = (((temp[1] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
currSlice->cof4[uv + 1][2][0][0] = (((temp[2] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
currSlice->cof4[uv + 1][3][0][0] = (((temp[3] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
}
}
}
else if (dec_picture->chroma_format_idc == YUV422)
{
for (ll=0;ll<3;ll+=2)
{
int (*InvLevelScale4x4)[4] = NULL;
uv = ll>>1;
{
h264_short_block_t *imgcof = currSlice->cof4[uv + 1];
int m3[2][4] = {{0,0,0,0},{0,0,0,0}};
int m4[2][4] = {{0,0,0,0},{0,0,0,0}};
int qp_per_uv_dc = p_Vid->qp_per_matrix[ (currMB->qpc[uv] + 3 + p_Vid->bitdepth_chroma_qp_scale) ]; //for YUV422 only
int qp_rem_uv_dc = p_Vid->qp_rem_matrix[ (currMB->qpc[uv] + 3 + p_Vid->bitdepth_chroma_qp_scale) ]; //for YUV422 only
if (intra)
InvLevelScale4x4 = currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv_dc];
else
InvLevelScale4x4 = currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv_dc];
//===================== CHROMA DC YUV422 ======================
{
coef_ctr=-1;
for(k=0;k<9;++k)
{
int type = (intra ? SE_CHR_DC_INTRA : SE_CHR_DC_INTER);
currMB->is_intra_block = intra;
currMB->is_v_block = ll;
dP = &(currSlice->partArr[partMap[type]]);
rl = readRunLevel_CABAC(currMB, &dP->de_cabac, CHROMA_DC_2x4);
if (rl.level != 0)
{
currMB->cbp_blk[0] |= ((int64)0xff0000) << (ll<<2) ;
coef_ctr += rl.run + 1;
assert (coef_ctr < p_Vid->num_cdc_coeff);
i0=SCAN_YUV422[coef_ctr][0];
j0=SCAN_YUV422[coef_ctr][1];
m3[i0][j0]=rl.level;
}
else
break;
}
}
// inverse CHROMA DC YUV422 transform
// horizontal
if(currMB->is_lossless == FALSE)
{
m4[0][0] = m3[0][0] + m3[1][0];
m4[0][1] = m3[0][1] + m3[1][1];
m4[0][2] = m3[0][2] + m3[1][2];
m4[0][3] = m3[0][3] + m3[1][3];
m4[1][0] = m3[0][0] - m3[1][0];
m4[1][1] = m3[0][1] - m3[1][1];
m4[1][2] = m3[0][2] - m3[1][2];
m4[1][3] = m3[0][3] - m3[1][3];
for (i = 0; i < 2; ++i)
{
m6[0] = m4[i][0] + m4[i][2];
m6[1] = m4[i][0] - m4[i][2];
m6[2] = m4[i][1] - m4[i][3];
m6[3] = m4[i][1] + m4[i][3];
imgcof[cof4_pos_to_subblock[0][i]][0][0] = m6[0] + m6[3];
imgcof[cof4_pos_to_subblock[1][i]][0][0] = m6[1] + m6[2];
imgcof[cof4_pos_to_subblock[2][i]][0][0] = m6[1] - m6[2];
imgcof[cof4_pos_to_subblock[3][i]][0][0]= m6[0] - m6[3];
}//for (i=0;i<2;++i)
}
else
{
for(j=0;j<4;++j)
{
for(i=0;i<2;++i)
{
currSlice->cof4[uv + 1][cof4_pos_to_subblock[j][i]][0][0] = m3[i][j];
}
}
}
for(j = 0;j < p_Vid->mb_cr_size_y; j += BLOCK_SIZE)
{
for(i=0;i < p_Vid->mb_cr_size_x;i+=BLOCK_SIZE)
{
imgcof[cof4_pos_to_subblock[j>>2][i>>2]][0][0] = rshift_rnd_sf((imgcof[cof4_pos_to_subblock[j>>2][i>>2]][0][0] * InvLevelScale4x4[0][0]) << qp_per_uv_dc, 6);
}
}
}
}//for (ll=0;ll<3;ll+=2)
}//else if (dec_picture->chroma_format_idc == YUV422)
}
//========================== CHROMA AC ============================
//-----------------------------------------------------------------
// chroma AC coeff, all zero fram start_scan
if (cbp<=31)
{
}
else
{
{
int type;
currMB->is_intra_block = intra;
type = (intra ? SE_CHR_AC_INTRA : SE_CHR_AC_INTER);
dP = &(currSlice->partArr[partMap[type]]);
if(currMB->is_lossless == FALSE)
{
for (b8=0; b8 < p_Vid->num_blk8x8_uv; ++b8)
{
currMB->is_v_block = uv = (b8 > ((p_Vid->num_uv_blocks) - 1 ));
InvLevelScale4x4 = intra ? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
for (b4 = 0; b4 < 4; ++b4)
{
int *scale = &InvLevelScale4x4[0][0];
i = cofuv_blk_x[yuv][b8][b4];
j = cofuv_blk_y[yuv][b8][b4];
currMB->subblock_y = subblk_offset_y[yuv][b8][b4];
currMB->subblock_x = subblk_offset_x[yuv][b8][b4];
pos_scan_4x4 = &pos_scan4x4_1d[1];
for(k = 0; k < 16;++k)
{
rl = readRunLevel_CABAC(currMB, &(dP->de_cabac), CHROMA_AC);
if (rl.level != 0)
{
byte position;
currMB->cbp_blk[0] |= ((int64)1) << cbp_blk_chroma[b8][b4];
pos_scan_4x4 += rl.run;
position = *pos_scan_4x4++;
((int16_t *)currSlice->cof4[uv + 1][cof4_pos_to_subblock[j][i]])[position] = rshift_rnd_sf((rl.level * scale[position])<<qp_per_uv[uv], 4);
}
else
break;
} //for(k=0;(k<16)&&(level!=0);++k)
}
}
}
else
{
for (b8=0; b8 < p_Vid->num_blk8x8_uv; ++b8)
{
currMB->is_v_block = uv = (b8 > ((p_Vid->num_uv_blocks) - 1 ));
for (b4=0; b4 < 4; ++b4)
{
i = cofuv_blk_x[yuv][b8][b4];
j = cofuv_blk_y[yuv][b8][b4];
pos_scan_4x4 = &pos_scan4x4_1d[1];
currMB->subblock_y = subblk_offset_y[yuv][b8][b4];
currMB->subblock_x = subblk_offset_x[yuv][b8][b4];
for(k=0;k<16;++k)
{
rl = readRunLevel_CABAC(currMB, &dP->de_cabac, CHROMA_AC);
if (rl.level != 0)
{
currMB->cbp_blk[0] |= ((int64)1) << cbp_blk_chroma[b8][b4];
pos_scan_4x4 += rl.run;
((int16_t *)currSlice->cof4[uv + 1][cof4_pos_to_subblock[j][i]])[*pos_scan_4x4++] = rl.level;
}
else
break;
}
}
}
} //for (b4=0; b4 < 4; b4++)
} //for (b8=0; b8 < p_Vid->num_blk8x8_uv; b8++)
} //if (dec_picture->chroma_format_idc != YUV400)
}
}
/*!
************************************************************************
* \brief
* Get coded block pattern and coefficients (run/level)
* from the NAL
************************************************************************
*/
static void read_CBP_and_coeffs_from_NAL_CAVLC(Macroblock *currMB)
{
int i,j,k;
int level;
int mb_nr = currMB->mbAddrX;
int cbp;
SyntaxElement currSE;
DataPartition *dP = NULL;
Slice *currSlice = currMB->p_Slice;
const byte *partMap = assignSE2partition[currSlice->dp_mode];
int coef_ctr, i0, j0, b8;
int ll;
__declspec(align(32)) int levarr[16], runarr[16];
int numcoeff;
int qp_per, qp_rem;
VideoParameters *p_Vid = currMB->p_Vid;
int smb = ((p_Vid->type==SP_SLICE) && IS_INTER (currMB)) || (p_Vid->type == SI_SLICE && currMB->mb_type == SI4MB);
int uv;
int qp_per_uv[2];
int qp_rem_uv[2];
int intra = IS_INTRA (currMB);
int temp[4];
int b4;
StorablePicture *dec_picture = p_Vid->dec_picture;
int yuv = dec_picture->chroma_format_idc - 1;
int m6[4];
int need_transform_size_flag;
int (*InvLevelScale4x4)[4] = NULL;
const int *InvLevelScale8x8 = NULL;
// select scan type
const byte (*pos_scan4x4)[2] = ((p_Vid->structure == FRAME) && (!currMB->mb_field)) ? SNGL_SCAN : FIELD_SCAN;
const byte *pos_scan_4x4 = pos_scan4x4[0];
// QPI
//init constants for every chroma qp offset
if (dec_picture->chroma_format_idc != YUV400)
{
for (i=0; i<2; ++i)
{
qp_per_uv[i] = p_Vid->qp_per_matrix[ currMB->qp_scaled[i + 1] ];
qp_rem_uv[i] = p_Vid->qp_rem_matrix[ currMB->qp_scaled[i + 1] ];
}
}
// read CBP if not new intra mode
if (!IS_I16MB (currMB))
{
//===== C B P =====
//---------------------
int type = (currMB->mb_type == I4MB || currMB->mb_type == SI4MB || currMB->mb_type == I8MB)
? SE_CBP_INTRA
: SE_CBP_INTER;
dP = &(currSlice->partArr[partMap[type]]);
currSE.mapping = (currMB->mb_type == I4MB || currMB->mb_type == SI4MB || currMB->mb_type == I8MB)
? currSlice->linfo_cbp_intra
: currSlice->linfo_cbp_inter;
TRACE_STRING("coded_block_pattern");
readSyntaxElement_UVLC(&currSE, dP);
currMB->cbp = cbp = currSE.value1;
//============= Transform size flag for INTER MBs =============
//-------------------------------------------------------------
need_transform_size_flag = (((currMB->mb_type >= 1 && currMB->mb_type <= 3)||
(IS_DIRECT(currMB) && p_Vid->active_sps->direct_8x8_inference_flag) ||
(currMB->NoMbPartLessThan8x8Flag))
&& currMB->mb_type != I8MB && currMB->mb_type != I4MB
&& (currMB->cbp&15)
&& p_Vid->Transform8x8Mode);
if (need_transform_size_flag)
{
dP = &(currSlice->partArr[partMap[SE_HEADER]]);
TRACE_STRING("transform_size_8x8_flag");
// read CAVLC transform_size_8x8_flag
currMB->luma_transform_size_8x8_flag = (Boolean) readSyntaxElement_FLC(dP->bitstream, 1);
}
//===== DQUANT =====
//----------------------
// Delta quant only if nonzero coeffs
if (cbp !=0)
{
read_delta_quant_CAVLC(&currSE, dP, currMB, partMap, (IS_INTER (currMB)) ? SE_DELTA_QUANT_INTER : SE_DELTA_QUANT_INTRA);
if (currSlice->dp_mode)
{
if (IS_INTER (currMB) && currSlice->dpC_NotPresent )
currMB->dpl_flag = 1;
if( intra && currSlice->dpB_NotPresent )
{
currMB->ei_flag = 1;
currMB->dpl_flag = 1;
}
// check for prediction from neighbours
check_dp_neighbors (currMB);
if (currMB->dpl_flag)
{
cbp = 0;
currMB->cbp = cbp;
}
}
}
}
else
{
cbp = currMB->cbp;
}
if (IS_I16MB (currMB)) // read DC coeffs for new intra modes
{
read_delta_quant_CAVLC(&currSE, dP, currMB, partMap, SE_DELTA_QUANT_INTRA);
macroblock_set_dc_pred(p_Vid, currMB->block_x, currMB->block_y);
if (currSlice->dp_mode)
{
if (currSlice->dpB_NotPresent)
{
currMB->ei_flag = 1;
currMB->dpl_flag = 1;
}
check_dp_neighbors (currMB);
if (currMB->dpl_flag)
{
currMB->cbp = cbp = 0;
}
}
if (!currMB->dpl_flag)
{
pos_scan_4x4 = pos_scan4x4[0];
readCoeff4x4_CAVLC(currMB, LUMA_INTRA16x16DC, 0, 0, levarr, runarr, &numcoeff);
for(k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0) // leave if level == 0
{
pos_scan_4x4 += 2 * runarr[k];
i0 = (*pos_scan_4x4++);
j0 = (*pos_scan_4x4++);
currSlice->cof4[0][cof4_pos_to_subblock[j0][i0]][0][0] = levarr[k];// add new intra DC coeff
}
}
if(currMB->is_lossless == FALSE)
itrans_2(currMB, (ColorPlane) p_Vid->colour_plane_id);// transform new intra DC
}
}
update_qp(currMB, p_Vid->qp);
qp_per = p_Vid->qp_per_matrix[ currMB->qp_scaled[p_Vid->colour_plane_id] ];
qp_rem = p_Vid->qp_rem_matrix[ currMB->qp_scaled[p_Vid->colour_plane_id] ];
//init quant parameters for chroma
if (dec_picture->chroma_format_idc != YUV400)
{
for(i=0; i < 2; ++i)
{
qp_per_uv[i] = p_Vid->qp_per_matrix[ currMB->qp_scaled[i + 1] ];
qp_rem_uv[i] = p_Vid->qp_rem_matrix[ currMB->qp_scaled[i + 1] ];
}
}
InvLevelScale4x4 = intra? currSlice->InvLevelScale4x4_Intra[p_Vid->colour_plane_id][qp_rem] : currSlice->InvLevelScale4x4_Inter[p_Vid->colour_plane_id][qp_rem];
InvLevelScale8x8 = intra? currSlice->InvLevelScale8x8_Intra[p_Vid->colour_plane_id][qp_rem] : currSlice->InvLevelScale8x8_Inter[p_Vid->colour_plane_id][qp_rem];
// luma coefficients
if (cbp)
{
if (!currMB->luma_transform_size_8x8_flag) // 4x4 transform
{
readCompCoeff4x4MB_CAVLC(currMB, PLANE_Y, InvLevelScale4x4, qp_per, cbp, p_Vid->nz_coeff[mb_nr][PLANE_Y]);
}
else // 8x8 transform
{
readCompCoeff8x8MB_CAVLC(currMB, PLANE_Y, InvLevelScale8x8, qp_per, cbp, p_Vid->nz_coeff[mb_nr][PLANE_Y]);
}
}
else
{
memset(&p_Vid->nz_coeff[mb_nr][0][0][0], 0, BLOCK_SIZE * BLOCK_SIZE * sizeof(byte));
}
if ( p_Vid->active_sps->chroma_format_idc==YUV444 && !IS_INDEPENDENT(p_Vid) )
{
for (uv = 0; uv < 2; ++uv )
{
/*----------------------16x16DC Luma_Add----------------------*/
if (IS_I16MB (currMB)) // read DC coeffs for new intra modes
{
macroblock_set_dc_pred(p_Vid, currMB->block_x, currMB->block_y);
if (uv == 0)
readCoeff4x4_CAVLC(currMB, CB_INTRA16x16DC, 0, 0, levarr, runarr, &numcoeff);
else
readCoeff4x4_CAVLC(currMB, CR_INTRA16x16DC, 0, 0, levarr, runarr, &numcoeff);
coef_ctr=-1;
level = 1; // just to get inside the loop
for(k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0) // leave if level == 0
{
coef_ctr += runarr[k] + 1;
i0 = pos_scan4x4[coef_ctr][0];
j0 = pos_scan4x4[coef_ctr][1];
currSlice->cof4[uv + 1][cof4_pos_to_subblock[j0][i0]][0][0] = levarr[k];// add new intra DC coeff
} //if leavarr[k]
} //k loop
if(currMB->is_lossless == FALSE)
{
itrans_2(currMB, (ColorPlane) (uv + 1)); // transform new intra DC
}
} //IS_I16MB
update_qp(currMB, p_Vid->qp);
qp_per = p_Vid->qp_per_matrix[ (p_Vid->qp + p_Vid->bitdepth_luma_qp_scale) ];
qp_rem = p_Vid->qp_rem_matrix[ (p_Vid->qp + p_Vid->bitdepth_luma_qp_scale) ];
//init constants for every chroma qp offset
qp_per_uv[uv] = p_Vid->qp_per_matrix[ (currMB->qpc[uv] + p_Vid->bitdepth_chroma_qp_scale) ];
qp_rem_uv[uv] = p_Vid->qp_rem_matrix[ (currMB->qpc[uv] + p_Vid->bitdepth_chroma_qp_scale) ];
InvLevelScale4x4 = intra? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
InvLevelScale8x8 = intra? currSlice->InvLevelScale8x8_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale8x8_Inter[uv + 1][qp_rem_uv[uv]];
if (!currMB->luma_transform_size_8x8_flag) // 4x4 transform
{
readCompCoeff4x4MB_CAVLC(currMB, (ColorPlane) (PLANE_U + uv), InvLevelScale4x4, qp_per_uv[uv], cbp, p_Vid->nz_coeff[mb_nr][PLANE_U + uv]);
}
else // 8x8 transform
{
readCompCoeff8x8MB_CAVLC(currMB, (ColorPlane) (PLANE_U + uv), InvLevelScale8x8, qp_per_uv[uv], cbp, p_Vid->nz_coeff[mb_nr][PLANE_U + uv]);
}
}
} //444
else if ((dec_picture->chroma_format_idc != YUV400) && (dec_picture->chroma_format_idc != YUV444))
{
//========================== CHROMA DC ============================
//-----------------------------------------------------------------
// chroma DC coeff
if(cbp>15)
{
if (dec_picture->chroma_format_idc == YUV420)
{
for (ll=0;ll<3;ll+=2)
{
uv = ll>>1;
InvLevelScale4x4 = intra ? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
//===================== CHROMA DC YUV420 ======================
memset(&currSlice->cofu[0], 0, 4 *sizeof(int));
coef_ctr=-1;
readCoeff4x4_CAVLC(currMB, CHROMA_DC, 0, 0, levarr, runarr, &numcoeff);
for(k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0)
{
currMB->cbp_blk[0] |= 0xf0000 << (ll<<1) ;
coef_ctr += runarr[k] + 1;
currSlice->cofu[coef_ctr]=levarr[k];
}
}
if (smb || (currMB->is_lossless == TRUE)) // check to see if MB type is SPred or SIntra4x4
{
currSlice->cof4[uv + 1][0][0][0] = currSlice->cofu[0];
currSlice->cof4[uv + 1][1][0][0] = currSlice->cofu[1];
currSlice->cof4[uv + 1][2][0][0] = currSlice->cofu[2];
currSlice->cof4[uv + 1][3][0][0] = currSlice->cofu[3];
}
else
{
ihadamard2x2(currSlice->cofu, temp);
currSlice->cof4[uv + 1][0][0][0] = (((temp[0] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
currSlice->cof4[uv + 1][1][0][0] = (((temp[1] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
currSlice->cof4[uv + 1][2][0][0] = (((temp[2] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
currSlice->cof4[uv + 1][3][0][0] = (((temp[3] * InvLevelScale4x4[0][0])<<qp_per_uv[uv])>>5);
}
}
}
else if (dec_picture->chroma_format_idc == YUV422)
{
for (ll=0;ll<3;ll+=2)
{
int (*InvLevelScale4x4)[4] = NULL;
uv = ll>>1;
{
h264_short_block_t *imgcof = currSlice->cof4[uv + 1];
int m3[2][4] = {{0,0,0,0},{0,0,0,0}};
int m4[2][4] = {{0,0,0,0},{0,0,0,0}};
int qp_per_uv_dc = p_Vid->qp_per_matrix[ (currMB->qpc[uv] + 3 + p_Vid->bitdepth_chroma_qp_scale) ]; //for YUV422 only
int qp_rem_uv_dc = p_Vid->qp_rem_matrix[ (currMB->qpc[uv] + 3 + p_Vid->bitdepth_chroma_qp_scale) ]; //for YUV422 only
if (intra)
InvLevelScale4x4 = currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv_dc];
else
InvLevelScale4x4 = currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv_dc];
//===================== CHROMA DC YUV422 ======================
readCoeff4x4_CAVLC(currMB, CHROMA_DC, 0, 0, levarr, runarr, &numcoeff);
coef_ctr=-1;
level=1;
for(k = 0; k < numcoeff; ++k)
{
if (levarr[k] != 0)
{
currMB->cbp_blk[0] |= ((int64)0xff0000) << (ll<<2);
coef_ctr += runarr[k]+1;
i0 = SCAN_YUV422[coef_ctr][0];
j0 = SCAN_YUV422[coef_ctr][1];
m3[i0][j0]=levarr[k];
}
}
// inverse CHROMA DC YUV422 transform
// horizontal
if(currMB->is_lossless == FALSE)
{
m4[0][0] = m3[0][0] + m3[1][0];
m4[0][1] = m3[0][1] + m3[1][1];
m4[0][2] = m3[0][2] + m3[1][2];
m4[0][3] = m3[0][3] + m3[1][3];
m4[1][0] = m3[0][0] - m3[1][0];
m4[1][1] = m3[0][1] - m3[1][1];
m4[1][2] = m3[0][2] - m3[1][2];
m4[1][3] = m3[0][3] - m3[1][3];
for (i = 0; i < 2; ++i)
{
m6[0] = m4[i][0] + m4[i][2];
m6[1] = m4[i][0] - m4[i][2];
m6[2] = m4[i][1] - m4[i][3];
m6[3] = m4[i][1] + m4[i][3];
imgcof[cof4_pos_to_subblock[0][i]][0][0] = m6[0] + m6[3];
imgcof[cof4_pos_to_subblock[1][i]][0][0] = m6[1] + m6[2];
imgcof[cof4_pos_to_subblock[2][i]][0][0] = m6[1] - m6[2];
imgcof[cof4_pos_to_subblock[3][i]][0][0] = m6[0] - m6[3];
}//for (i=0;i<2;++i)
}
else
{
currSlice->cof4[uv + 1][0][0][0] = m3[0][0];
currSlice->cof4[uv + 1][1][0][0] = m3[1][0];
currSlice->cof4[uv + 1][2][0][0] = m3[0][1];
currSlice->cof4[uv + 1][3][0][0] = m3[1][1];
currSlice->cof4[uv + 1][8][0][0] = m3[0][2];
currSlice->cof4[uv + 1][9][0][0] = m3[1][2];
currSlice->cof4[uv + 1][10][0][0] = m3[0][3];
currSlice->cof4[uv + 1][11][0][0] = m3[1][3];
}
for(j = 0;j < 16; j += BLOCK_SIZE)
{
for(i=0;i < 8;i+=BLOCK_SIZE)
{
imgcof[cof4_pos_to_subblock[j>>2][i>>2]][0][0] = rshift_rnd_sf((imgcof[cof4_pos_to_subblock[j>>2][i>>2]][0][0] * InvLevelScale4x4[0][0]) << qp_per_uv_dc, 6);
}
}
}
}//for (ll=0;ll<3;ll+=2)
}//else if (dec_picture->chroma_format_idc == YUV422)
}
//========================== CHROMA AC ============================
//-----------------------------------------------------------------
// chroma AC coeff, all zero fram start_scan
if (cbp<=31)
{
memset(&p_Vid->nz_coeff [mb_nr ][1][0][0], 0, 2 * BLOCK_SIZE * BLOCK_SIZE * sizeof(byte));
}
else
{
if(currMB->is_lossless == FALSE)
{
for (b8=0; b8 < p_Vid->num_blk8x8_uv; ++b8)
{
currMB->is_v_block = uv = (b8 > ((p_Vid->num_uv_blocks) - 1 ));
InvLevelScale4x4 = intra ? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
for (b4=0; b4 < 4; ++b4)
{
i = cofuv_blk_x[yuv][b8][b4];
j = cofuv_blk_y[yuv][b8][b4];
readCoeff4x4_CAVLC(currMB, CHROMA_AC, i + 2*uv, j + 4, levarr, runarr, &numcoeff);
coef_ctr = 0;
for(k = 0; k < numcoeff;++k)
{
if (levarr[k] != 0)
{
currMB->cbp_blk[0] |= ((int64)1) << cbp_blk_chroma[b8][b4];
coef_ctr += runarr[k] + 1;
i0=pos_scan4x4[coef_ctr][0];
j0=pos_scan4x4[coef_ctr][1];
currSlice->cof4[uv + 1][cof4_pos_to_subblock[j][i]][j0][i0] = rshift_rnd_sf((levarr[k] * InvLevelScale4x4[j0][i0])<<qp_per_uv[uv], 4);
}
}
}
}
}
else
{
int type;
currMB->is_intra_block = IS_INTRA(currMB);
type = (currMB->is_intra_block ? SE_CHR_AC_INTRA : SE_CHR_AC_INTER);
dP = &(currSlice->partArr[partMap[type]]);
currSE.mapping = linfo_levrun_inter;
if(currMB->is_lossless == FALSE)
{
for (b8=0; b8 < p_Vid->num_blk8x8_uv; ++b8)
{
currMB->is_v_block = uv = (b8 > ((p_Vid->num_uv_blocks) - 1 ));
InvLevelScale4x4 = intra ? currSlice->InvLevelScale4x4_Intra[uv + 1][qp_rem_uv[uv]] : currSlice->InvLevelScale4x4_Inter[uv + 1][qp_rem_uv[uv]];
for (b4 = 0; b4 < 4; ++b4)
{
i = cofuv_blk_x[yuv][b8][b4];
j = cofuv_blk_y[yuv][b8][b4];
currMB->subblock_y = subblk_offset_y[yuv][b8][b4];
currMB->subblock_x = subblk_offset_x[yuv][b8][b4];
pos_scan_4x4 = pos_scan4x4[1];
for(k = 0; k < 16;k++)
{
readSyntaxElement_UVLC(&currSE, dP);
level = currSE.value1;
if (level != 0)
{
currMB->cbp_blk[0] |= ((int64)1) << cbp_blk_chroma[b8][b4];
pos_scan_4x4 += (currSE.value2 << 1);
i0 = *pos_scan_4x4++;
j0 = *pos_scan_4x4++;
currSlice->cof4[uv + 1][cof4_pos_to_subblock[j][i]][j0][i0] = rshift_rnd_sf((level * InvLevelScale4x4[j0][i0])<<qp_per_uv[uv], 4);
}
else
break;
} //for(k=0;(k<16)&&(level!=0);++k)
}
}
}
else
{
for (b8=0; b8 < p_Vid->num_blk8x8_uv; ++b8)
{
currMB->is_v_block = uv = (b8 > ((p_Vid->num_uv_blocks) - 1 ));
for (b4=0; b4 < 4; ++b4)
{
i = cofuv_blk_x[yuv][b8][b4];
j = cofuv_blk_y[yuv][b8][b4];
pos_scan_4x4 = pos_scan4x4[1];
currMB->subblock_y = subblk_offset_y[yuv][b8][b4];
currMB->subblock_x = subblk_offset_x[yuv][b8][b4];
for(k=0;k<16;++k)
{
readSyntaxElement_UVLC(&currSE, dP);
level = currSE.value1;
if (level != 0)
{
currMB->cbp_blk[0] |= ((int64)1) << cbp_blk_chroma[b8][b4];
pos_scan_4x4 += (currSE.value2 << 1);
i0 = *pos_scan_4x4++;
j0 = *pos_scan_4x4++;
currSlice->cof4[uv + 1][cof4_pos_to_subblock[j][i]][j0][i0] = level;
}
else
break;
}
}
}
} //for (b4=0; b4 < 4; b4++)
} //for (b8=0; b8 < p_Vid->num_blk8x8_uv; b8++)
} //if (dec_picture->chroma_format_idc != YUV400)
}
}
/*!
************************************************************************
* \brief
* decode one color component in an I slice
************************************************************************
*/
static int decode_one_component_i_slice(Macroblock *currMB, ColorPlane curr_plane, VideoImage *image, StorablePicture *dec_picture)
{
//For residual DPCM
currMB->ipmode_DPCM = NO_INTRA_PMODE;
if(currMB->mb_type == IPCM)
mb_pred_ipcm(currMB);
else if (IS_I16MB (currMB)) // get prediction for INTRA_MB_16x16
mb_pred_intra16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I4MB)
mb_pred_intra4x4(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I8MB)
mb_pred_intra8x8(currMB, curr_plane, image, dec_picture);
return 1;
}
/*!
************************************************************************
* \brief
* decode one color component for a p slice
************************************************************************
*/
static int decode_one_component_p_slice(Macroblock *currMB, ColorPlane curr_plane, VideoImage *image, StorablePicture *dec_picture)
{
//For residual DPCM
currMB->ipmode_DPCM = NO_INTRA_PMODE;
if(currMB->mb_type == IPCM)
mb_pred_ipcm(currMB);
else if (IS_I16MB (currMB)) // get prediction for INTRA_MB_16x16
mb_pred_intra16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I4MB)
mb_pred_intra4x4(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I8MB)
mb_pred_intra8x8(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == PSKIP)
mb_pred_skip(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P16x16)
mb_pred_p_inter16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P16x8)
mb_pred_p_inter16x8(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P8x16)
mb_pred_p_inter8x16(currMB, curr_plane, image, dec_picture);
else
mb_pred_p_inter8x8(currMB, curr_plane, image, dec_picture);
return 1;
}
/*!
************************************************************************
* \brief
* decode one color component for a sp slice
************************************************************************
*/
static int decode_one_component_sp_slice(Macroblock *currMB, ColorPlane curr_plane, VideoImage *image, StorablePicture *dec_picture)
{
//For residual DPCM
currMB->ipmode_DPCM = NO_INTRA_PMODE;
if(currMB->mb_type == IPCM)
mb_pred_ipcm(currMB);
else if (IS_I16MB (currMB)) // get prediction for INTRA_MB_16x16
mb_pred_intra16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I4MB)
mb_pred_intra4x4(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I8MB)
mb_pred_intra8x8(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == PSKIP)
mb_pred_sp_skip(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P16x16)
mb_pred_p_inter16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P16x8)
mb_pred_p_inter16x8(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P8x16)
mb_pred_p_inter8x16(currMB, curr_plane, image, dec_picture);
else
mb_pred_p_inter8x8(currMB, curr_plane, image, dec_picture);
return 1;
}
static void set_chroma_vector(Macroblock *currMB, int *list_offset)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
if (!currSlice->mb_aff_frame_flag)
{
if(p_Vid->structure == TOP_FIELD)
{
int k,l;
for (l = LIST_0; l <= (LIST_1); l++)
{
for(k = 0; k < p_Vid->listXsize[l]; k++)
{
if(p_Vid->structure != p_Vid->listX[l][k]->structure)
p_Vid->listX[l][k]->chroma_vector_adjustment = -2;
else
p_Vid->listX[l][k]->chroma_vector_adjustment= 0;
}
}
}
else if(p_Vid->structure == BOTTOM_FIELD)
{
int k,l;
for (l = LIST_0; l <= (LIST_1); l++)
{
for(k = 0; k < p_Vid->listXsize[l]; k++)
{
if (p_Vid->structure != p_Vid->listX[l][k]->structure)
p_Vid->listX[l][k]->chroma_vector_adjustment = 2;
else
p_Vid->listX[l][k]->chroma_vector_adjustment= 0;
}
}
}
else
{
int k,l;
for (l = LIST_0; l <= (LIST_1); l++)
{
for(k = 0; k < p_Vid->listXsize[l]; k++)
{
p_Vid->listX[l][k]->chroma_vector_adjustment= 0;
}
}
}
}
else
{
int mb_nr = (currMB->mbAddrX & 0x01);
int k,l;
//////////////////////////
// find out the correct list offsets
if (currMB->mb_field)
{
*list_offset = mb_nr ? 4 : 2;
for (l = LIST_0 + *list_offset; l <= (LIST_1 + *list_offset); l++)
{
for(k = 0; k < p_Vid->listXsize[l]; k++)
{
if(mb_nr == 0 && p_Vid->listX[l][k]->structure == BOTTOM_FIELD)
p_Vid->listX[l][k]->chroma_vector_adjustment = -2;
else if(mb_nr == 1 && p_Vid->listX[l][k]->structure == TOP_FIELD)
p_Vid->listX[l][k]->chroma_vector_adjustment = 2;
else
p_Vid->listX[l][k]->chroma_vector_adjustment= 0;
}
}
}
else
{
for (l = LIST_0; l <= (LIST_1); l++)
{
for(k = 0; k < p_Vid->listXsize[l]; k++)
{
p_Vid->listX[l][k]->chroma_vector_adjustment= 0;
}
}
}
}
p_Vid->max_mb_vmv_r = (p_Vid->structure != FRAME || (currSlice->mb_aff_frame_flag && currMB->mb_field)) ? p_Vid->max_vmv_r >> 1 : p_Vid->max_vmv_r;
}
static void mb_pred_b_dspatial(Macroblock *currMB, ColorPlane curr_plane, VideoImage *image, StorablePicture *dec_picture)
{
char l0_rFrame = -1, l1_rFrame = -1;
PicMotionParams *motion = &dec_picture->motion;
MotionVector pmvl0={0,0}, pmvl1={0,0};
int k;
int block8x8;
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
int curr_mb_field = ((currSlice->mb_aff_frame_flag)&&(currMB->mb_field));
MotionParams *colocated = &currSlice->p_colocated->frame;
int list_offset = 0;
int pred_dir = 0;
Boolean has_zero_partitions = FALSE;
h264_ref_t *ref_pic_num_l0, *ref_pic_num_l1;
set_chroma_vector(currMB, &list_offset);
if (currMB->mb_field)
{
if(currMB->mbAddrX & 0x01)
{
colocated = &currSlice->p_colocated->bottom;
}
else
{
colocated = &currSlice->p_colocated->top;
}
}
prepare_direct_params(currMB, dec_picture, pmvl0, pmvl1, &l0_rFrame, &l1_rFrame);
ref_pic_num_l0 = dec_picture->ref_pic_num[p_Vid->current_slice_nr][LIST_0 + list_offset];
ref_pic_num_l1 = dec_picture->ref_pic_num[p_Vid->current_slice_nr][LIST_1 + list_offset];
if (p_Vid->active_sps->direct_8x8_inference_flag)
{
if (l0_rFrame >=0 && l1_rFrame >=0)
{
PicMotion **motion0 = &motion->motion[LIST_0][currMB->block_y];
PicMotion **motion1 = &motion->motion[LIST_1][currMB->block_y];
int block_x = currMB->block_x;
has_zero_partitions = TRUE;
pred_dir = 2;
if (p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)
{ // long term
//---
memcpy(motion0[0][block_x + 0].mv, pmvl0, sizeof(MotionVector));
motion0[0][block_x + 0].ref_idx = l0_rFrame;
memcpy(motion1[0][block_x + 0].mv, pmvl1, sizeof(MotionVector));
motion1[0][block_x + 0].ref_idx = l1_rFrame;
motion0[0][block_x + 0].ref_pic_id = ref_pic_num_l0[(short)motion0[0][block_x + 0].ref_idx];
motion1[0][block_x + 0].ref_pic_id = ref_pic_num_l1[(short)motion1[0][block_x + 0].ref_idx];
memcpy(motion0[0][block_x + 1].mv, pmvl0, sizeof(MotionVector));
motion0[0][block_x + 1].ref_idx = l0_rFrame;
memcpy(motion1[0][block_x + 1].mv, pmvl1, sizeof(MotionVector));
motion1[0][block_x + 1].ref_idx = l1_rFrame;
motion0[0][block_x + 1].ref_pic_id = ref_pic_num_l0[(short)motion0[0][block_x + 1].ref_idx];
motion1[0][block_x + 1].ref_pic_id = ref_pic_num_l1[(short)motion1[0][block_x + 1].ref_idx];
memcpy(motion0[1][block_x + 0].mv, pmvl0, sizeof(MotionVector));
motion0[1][block_x + 0].ref_idx = l0_rFrame;
memcpy(motion1[1][block_x + 0].mv, pmvl1, sizeof(MotionVector));
motion1[1][block_x + 0].ref_idx = l1_rFrame;
motion0[1][block_x + 0].ref_pic_id = ref_pic_num_l0[(short)motion0[1][block_x + 0].ref_idx];
motion1[1][block_x + 0].ref_pic_id = ref_pic_num_l1[(short)motion1[1][block_x + 0].ref_idx];
memcpy(motion0[1][block_x + 1].mv, pmvl0, sizeof(MotionVector));
motion0[1][block_x + 1].ref_idx = l0_rFrame;
memcpy(motion1[1][block_x + 1].mv, pmvl1, sizeof(MotionVector));
motion1[1][block_x + 1].ref_idx = l1_rFrame;
motion0[1][block_x + 1].ref_pic_id = ref_pic_num_l0[(short)motion0[1][block_x + 1].ref_idx];
motion1[1][block_x + 1].ref_pic_id = ref_pic_num_l1[(short)motion1[1][block_x + 1].ref_idx];
perform_mc8x8(currMB, curr_plane, dec_picture, pred_dir, 0, 0, list_offset, curr_mb_field);
//---
memcpy(motion0[0][block_x + 2].mv, pmvl0, sizeof(MotionVector));
motion0[0][block_x + 2].ref_idx = l0_rFrame;
memcpy(motion1[0][block_x + 2].mv, pmvl1, sizeof(MotionVector));
motion1[0][block_x + 2].ref_idx = l1_rFrame;
motion0[0][block_x + 2].ref_pic_id = ref_pic_num_l0[(short)motion0[0][block_x + 2].ref_idx];
motion1[0][block_x + 2].ref_pic_id = ref_pic_num_l1[(short)motion1[0][block_x + 2].ref_idx];
memcpy(motion0[0][block_x + 3].mv, pmvl0, sizeof(MotionVector));
motion0[0][block_x + 3].ref_idx = l0_rFrame;
memcpy(motion1[0][block_x + 3].mv, pmvl1, sizeof(MotionVector));
motion1[0][block_x + 3].ref_idx = l1_rFrame;
motion0[0][block_x + 3].ref_pic_id = ref_pic_num_l0[(short)motion0[0][block_x + 3].ref_idx];
motion1[0][block_x + 3].ref_pic_id = ref_pic_num_l1[(short)motion1[0][block_x + 3].ref_idx];
memcpy(motion0[1][block_x + 2].mv, pmvl0, sizeof(MotionVector));
motion0[1][block_x + 2].ref_idx = l0_rFrame;
memcpy(motion1[1][block_x + 2].mv, pmvl1, sizeof(MotionVector));
motion1[1][block_x + 2].ref_idx = l1_rFrame;
motion0[1][block_x + 2].ref_pic_id = ref_pic_num_l0[(short)motion0[1][block_x + 2].ref_idx];
motion1[1][block_x + 2].ref_pic_id = ref_pic_num_l1[(short)motion1[1][block_x + 2].ref_idx];
memcpy(motion0[1][block_x + 3].mv, pmvl0, sizeof(MotionVector));
motion0[1][block_x + 3].ref_idx = l0_rFrame;
memcpy(motion1[1][block_x + 3].mv, pmvl1, sizeof(MotionVector));
motion1[1][block_x + 3].ref_idx = l1_rFrame;
motion0[1][block_x + 3].ref_pic_id = ref_pic_num_l0[(short)motion0[1][block_x + 3].ref_idx];
motion1[1][block_x + 3].ref_pic_id = ref_pic_num_l1[(short)motion1[1][block_x + 3].ref_idx];
perform_mc8x8(currMB, curr_plane, dec_picture, pred_dir, 2, 0, list_offset, curr_mb_field);
//---
memcpy(motion0[2][block_x + 0].mv, pmvl0, sizeof(MotionVector));
motion0[2][block_x + 0].ref_idx = l0_rFrame;
memcpy(motion1[2][block_x + 0].mv, pmvl1, sizeof(MotionVector));
motion1[2][block_x + 0].ref_idx = l1_rFrame;
motion0[2][block_x + 0].ref_pic_id = ref_pic_num_l0[(short)motion0[2][block_x + 0].ref_idx];
motion1[2][block_x + 0].ref_pic_id = ref_pic_num_l1[(short)motion1[2][block_x + 0].ref_idx];
memcpy(motion0[2][block_x + 1].mv, pmvl0, sizeof(MotionVector));
motion0[2][block_x + 1].ref_idx = l0_rFrame;
memcpy(motion1[2][block_x + 1].mv, pmvl1, sizeof(MotionVector));
motion1[2][block_x + 1].ref_idx = l1_rFrame;
motion0[2][block_x + 1].ref_pic_id = ref_pic_num_l0[(short)motion0[2][block_x + 1].ref_idx];
motion1[2][block_x + 1].ref_pic_id = ref_pic_num_l1[(short)motion1[2][block_x + 1].ref_idx];
memcpy(motion0[3][block_x + 0].mv, pmvl0, sizeof(MotionVector));
motion0[3][block_x + 0].ref_idx = l0_rFrame;
memcpy(motion1[3][block_x + 0].mv, pmvl1, sizeof(MotionVector));
motion1[3][block_x + 0].ref_idx = l1_rFrame;
motion0[3][block_x + 0].ref_pic_id = ref_pic_num_l0[(short)motion0[3][block_x + 0].ref_idx];
motion1[3][block_x + 0].ref_pic_id = ref_pic_num_l1[(short)motion1[3][block_x + 0].ref_idx];
memcpy(motion0[3][block_x + 1].mv, pmvl0, sizeof(MotionVector));
motion0[3][block_x + 1].ref_idx = l0_rFrame;
memcpy(motion1[3][block_x + 1].mv, pmvl1, sizeof(MotionVector));
motion1[3][block_x + 1].ref_idx = l1_rFrame;
motion0[3][block_x + 1].ref_pic_id = ref_pic_num_l0[(short)motion0[3][block_x + 1].ref_idx];
motion1[3][block_x + 1].ref_pic_id = ref_pic_num_l1[(short)motion1[3][block_x + 1].ref_idx];
perform_mc8x8(currMB, curr_plane, dec_picture, pred_dir, 0, 2, list_offset, curr_mb_field);
//---
memcpy(motion0[2][block_x + 2].mv, pmvl0, sizeof(MotionVector));
motion0[2][block_x + 2].ref_idx = l0_rFrame;
memcpy(motion1[2][block_x + 2].mv, pmvl1, sizeof(MotionVector));
motion1[2][block_x + 2].ref_idx = l1_rFrame;
motion0[2][block_x + 2].ref_pic_id = ref_pic_num_l0[(short)motion0[2][block_x + 2].ref_idx];
motion1[2][block_x + 2].ref_pic_id = ref_pic_num_l1[(short)motion1[2][block_x + 2].ref_idx];
memcpy(motion0[2][block_x + 3].mv, pmvl0, sizeof(MotionVector));
motion0[2][block_x + 3].ref_idx = l0_rFrame;
memcpy(motion1[2][block_x + 3].mv, pmvl1, sizeof(MotionVector));
motion1[2][block_x + 3].ref_idx = l1_rFrame;
motion0[2][block_x + 3].ref_pic_id = ref_pic_num_l0[(short)motion0[2][block_x + 3].ref_idx];
motion1[2][block_x + 3].ref_pic_id = ref_pic_num_l1[(short)motion1[2][block_x + 3].ref_idx];
memcpy(motion0[3][block_x + 2].mv, pmvl0, sizeof(MotionVector));
motion0[3][block_x + 2].ref_idx = l0_rFrame;
memcpy(motion1[3][block_x + 2].mv, pmvl1, sizeof(MotionVector));
motion1[3][block_x + 2].ref_idx = l1_rFrame;
motion0[3][block_x + 2].ref_pic_id = ref_pic_num_l0[(short)motion0[3][block_x + 2].ref_idx];
motion1[3][block_x + 2].ref_pic_id = ref_pic_num_l1[(short)motion1[3][block_x + 2].ref_idx];
memcpy(motion0[3][block_x + 3].mv, pmvl0, sizeof(MotionVector));
motion0[3][block_x + 3].ref_idx = l0_rFrame;
memcpy(motion1[3][block_x + 3].mv, pmvl1, sizeof(MotionVector));
motion1[3][block_x + 3].ref_idx = l1_rFrame;
motion0[3][block_x + 3].ref_pic_id = ref_pic_num_l0[(short)motion0[3][block_x + 3].ref_idx];
motion1[3][block_x + 3].ref_pic_id = ref_pic_num_l1[(short)motion1[3][block_x + 3].ref_idx];
perform_mc8x8(currMB, curr_plane, dec_picture, pred_dir, 2, 2, list_offset, curr_mb_field);
}
else
{ // not long term
const byte **colocated_moving_block = &colocated->moving_block[currMB->block_y_aff];
for (block8x8 = 0; block8x8 < 4; block8x8++)
{
int k_start = (block8x8 << 2);
for (k = k_start; k < k_start + BLOCK_MULTIPLE; k ++)
{
int i = (decode_block_scan[k] & 3);
int j = ((decode_block_scan[k] >> 2) & 3);
int i4 = currMB->block_x + i;
//===== DIRECT PREDICTION =====
if (!l0_rFrame && !colocated_moving_block[j][i4])
{
motion0[j][i4].mv[0] = 0;
motion0[j][i4].mv[1] = 0;
motion0[j][i4].ref_idx = 0;
}
else
{
motion0[j][i4].mv[0] = pmvl0[0];
motion0[j][i4].mv[1] = pmvl0[1];
motion0[j][i4].ref_idx = l0_rFrame;
}
if (l1_rFrame == 0 && !colocated_moving_block[j][i4])
{
motion1[j][i4].mv[0] = 0;
motion1[j][i4].mv[1] = 0;
motion1[j][i4].ref_idx = 0;
}
else
{
motion1[j][i4].mv[0] = pmvl1[0];
motion1[j][i4].mv[1] = pmvl1[1];
motion1[j][i4].ref_idx = l1_rFrame;
}
motion0[j][i4].ref_pic_id = ref_pic_num_l0[(short)motion0[j][i4].ref_idx];
motion1[j][i4].ref_pic_id = ref_pic_num_l1[(short)motion1[j][i4].ref_idx];
}
perform_mc8x8(currMB, curr_plane, dec_picture, pred_dir, (decode_block_scan[k_start] & 3), ((decode_block_scan[k_start] >> 2) & 3), list_offset, curr_mb_field);
}
}
}
else
{
for (block8x8 = 0; block8x8 < 4; block8x8++)
{
int k_start = (block8x8 << 2);
for (k = k_start; k < k_start + BLOCK_MULTIPLE; k ++)
{
int i = (decode_block_scan[k] & 3);
int j = ((decode_block_scan[k] >> 2) & 3);
int i4 = currMB->block_x + i;
int j4 = currMB->block_y + j;
int j6 = currMB->block_y_aff + j;
//printf("%d %d\n", i, j);
//===== DIRECT PREDICTION =====
if (l0_rFrame >=0)
{
if (!l0_rFrame && ((!colocated->moving_block[j6][i4]) && (!p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)))
{
has_zero_partitions = TRUE;
motion->motion[LIST_0][j4][i4].mv[0] = 0;
motion->motion[LIST_0][j4][i4].mv[1] = 0;
motion->motion[LIST_0][j4][i4].ref_idx = 0;
}
else
{
has_zero_partitions = TRUE;
motion->motion[LIST_0][j4][i4].mv[0] = pmvl0[0];
motion->motion[LIST_0][j4][i4].mv[1] = pmvl0[1];
motion->motion[LIST_0][j4][i4].ref_idx = l0_rFrame;
}
}
else
{
motion->motion[LIST_0][j4][i4].mv[0] = 0;
motion->motion[LIST_0][j4][i4].mv[1] = 0;
motion->motion[LIST_0][j4][i4].ref_idx = -1;
}
if (l1_rFrame >=0)
{
if (l1_rFrame == 0 && ((!colocated->moving_block[j6][i4]) && (!p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)))
{
has_zero_partitions = TRUE;
motion->motion[LIST_1][j4][i4].mv[0] = 0;
motion->motion[LIST_1][j4][i4].mv[1] = 0;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
}
else
{
has_zero_partitions = TRUE;
motion->motion[LIST_1][j4][i4].mv[0] = pmvl1[0];
motion->motion[LIST_1][j4][i4].mv[1] = pmvl1[1];
motion->motion[LIST_1][j4][i4].ref_idx = l1_rFrame;
}
}
else
{
motion->motion[LIST_1][j4][i4].mv[0] = 0;
motion->motion[LIST_1][j4][i4].mv[1] = 0;
motion->motion[LIST_1][j4][i4].ref_idx = -1;
}
if (l1_rFrame == -1)
pred_dir = 0;
else if (l0_rFrame == -1)
pred_dir = 1;
else
pred_dir = 2;
if (l0_rFrame < 0 && l1_rFrame < 0)
{
motion->motion[LIST_0][j4][i4].ref_idx = 0;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
pred_dir = 2;
}
motion->motion[LIST_0][j4][i4].ref_pic_id = ref_pic_num_l0[(short)motion->motion[LIST_0][j4][i4].ref_idx];
motion->motion[LIST_1][j4][i4].ref_pic_id = ref_pic_num_l1[(short)motion->motion[LIST_1][j4][i4].ref_idx];
}
if (has_zero_partitions == TRUE)
{
int i = (decode_block_scan[k_start] & 3);
int j = ((decode_block_scan[k_start] >> 2) & 3);
perform_mc8x8(currMB, curr_plane, dec_picture, pred_dir, i, j, list_offset, curr_mb_field);
}
}
}
}
else
{
for (block8x8 = 0; block8x8 < 4; block8x8++)
{
int k_start = (block8x8 << 2);
int k_end = k_start + BLOCK_MULTIPLE;
for (k = k_start; k < k_end; k ++)
{
int i = (decode_block_scan[k] & 3);
int j = ((decode_block_scan[k] >> 2) & 3);
int i4 = currMB->block_x + i;
int j4 = currMB->block_y + j;
int j6 = currMB->block_y_aff + j;
//===== DIRECT PREDICTION =====
if (l0_rFrame >=0)
{
if (!l0_rFrame && ((!colocated->moving_block[j6][i4]) && (!p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)))
{
has_zero_partitions = TRUE;
motion->motion[LIST_0][j4][i4].mv[0] = 0;
motion->motion[LIST_0][j4][i4].mv[1] = 0;
motion->motion[LIST_0][j4][i4].ref_idx = 0;
}
else
{
has_zero_partitions = TRUE;
motion->motion[LIST_0][j4][i4].mv[0] = pmvl0[0];
motion->motion[LIST_0][j4][i4].mv[1] = pmvl0[1];
motion->motion[LIST_0][j4][i4].ref_idx = l0_rFrame;
}
}
else
{
motion->motion[LIST_0][j4][i4].mv[0] = 0;
motion->motion[LIST_0][j4][i4].mv[1] = 0;
motion->motion[LIST_0][j4][i4].ref_idx = -1;
}
if (l1_rFrame >=0)
{
if (l1_rFrame == 0 && ((!colocated->moving_block[j6][i4]) && (!p_Vid->listX[LIST_1 + list_offset][0]->is_long_term)))
{
has_zero_partitions = TRUE;
motion->motion[LIST_1][j4][i4].mv[0] = 0;
motion->motion[LIST_1][j4][i4].mv[1] = 0;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
}
else
{
has_zero_partitions = TRUE;
motion->motion[LIST_1][j4][i4].mv[0] = pmvl1[0];
motion->motion[LIST_1][j4][i4].mv[1] = pmvl1[1];
motion->motion[LIST_1][j4][i4].ref_idx = l1_rFrame;
}
}
else
{
motion->motion[LIST_1][j4][i4].mv[0] = 0;
motion->motion[LIST_1][j4][i4].mv[1] = 0;
motion->motion[LIST_1][j4][i4].ref_idx = -1;
}
if (l0_rFrame < 0 && l1_rFrame < 0)
{
motion->motion[LIST_0][j4][i4].ref_idx = 0;
motion->motion[LIST_1][j4][i4].ref_idx = 0;
}
if (l1_rFrame == -1)
{
if (l0_rFrame == -1)
pred_dir = 2;
else
pred_dir = 0;
}
else if (l0_rFrame == -1)
{
pred_dir = 1;
}
else
pred_dir = 2;
motion->motion[LIST_0][j4][i4].ref_pic_id = ref_pic_num_l0[(short)motion->motion[LIST_0][j4][i4].ref_idx];
motion->motion[LIST_1][j4][i4].ref_pic_id = ref_pic_num_l1[(short)motion->motion[LIST_1][j4][i4].ref_idx];
}
if (has_zero_partitions == TRUE)
{
for (k = k_start; k < k_end; k ++)
{
int i = (decode_block_scan[k] & 3);
int j = ((decode_block_scan[k] >> 2) & 3);
perform_mc(currMB, curr_plane, dec_picture, pred_dir, i, j, list_offset, BLOCK_SIZE, BLOCK_SIZE, curr_mb_field);
}
}
}
}
if (has_zero_partitions == FALSE)
{
perform_mc16x16(currMB, curr_plane, dec_picture, pred_dir, list_offset, curr_mb_field);
}
if (currMB->cbp == 0)
{
opt_copy_image_data_16x16_stride(image, currMB->pix_x, currMB->pix_y, currSlice->mb_pred[curr_plane]);
if (dec_picture->chroma_format_idc == YUV420)
{
copy_image_data_8x8_stride(dec_picture->imgUV[0], currMB->pix_c_x, currMB->pix_c_y, currSlice->mb_pred[1]);
copy_image_data_8x8_stride(dec_picture->imgUV[1], currMB->pix_c_x, currMB->pix_c_y, currSlice->mb_pred[2]);
}
else if (dec_picture->chroma_format_idc == YUV422)
{
copy_image_data_stride(dec_picture->imgUV[0], currMB->pix_c_x, currMB->pix_c_y, currSlice->mb_pred[1], 8, 16);
copy_image_data_stride(dec_picture->imgUV[1], currMB->pix_c_x, currMB->pix_c_y, currSlice->mb_pred[2], 8, 16);
}
}
else
iTransform(currMB, curr_plane, 0);
}
/*!
************************************************************************
* \brief
* decode one color component for a b slice
************************************************************************
*/
static int decode_one_component_b_slice(Macroblock *currMB, ColorPlane curr_plane, VideoImage *image, StorablePicture *dec_picture)
{
//For residual DPCM
currMB->ipmode_DPCM = NO_INTRA_PMODE;
if(currMB->mb_type == IPCM)
mb_pred_ipcm(currMB);
else if (IS_I16MB (currMB)) // get prediction for INTRA_MB_16x16
mb_pred_intra16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I4MB)
mb_pred_intra4x4(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == I8MB)
mb_pred_intra8x8(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P16x16)
mb_pred_p_inter16x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P16x8)
mb_pred_p_inter16x8(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == P8x16)
mb_pred_p_inter8x16(currMB, curr_plane, image, dec_picture);
else if (currMB->mb_type == BSKIP_DIRECT)
{
if (currMB->p_Slice->direct_spatial_mv_pred_flag == 0)
mb_pred_b_dtemporal (currMB, curr_plane, image, dec_picture);
else
mb_pred_b_dspatial (currMB, curr_plane, image, dec_picture);
}
else
mb_pred_b_inter8x8 (currMB, curr_plane, image, dec_picture);
return 1;
}
/*!
************************************************************************
* \brief
* decode one macroblock
************************************************************************
*/
int decode_one_macroblock(Macroblock *currMB, StorablePicture *dec_picture)
{
Slice *currSlice = currMB->p_Slice;
VideoParameters *p_Vid = currMB->p_Vid;
// luma decoding **************************************************
currSlice->decode_one_component(currMB, PLANE_Y, dec_picture->imgY, dec_picture);
if ((p_Vid->active_sps->chroma_format_idc==YUV444)&&(!IS_INDEPENDENT(p_Vid)))
{
currSlice->decode_one_component(currMB, PLANE_U, dec_picture->imgUV[0], dec_picture);
currSlice->decode_one_component(currMB, PLANE_V, dec_picture->imgUV[1], dec_picture);
}
return 0;
}
/*!
************************************************************************
* \brief
* change target plane
* for 4:4:4 Independent mode
************************************************************************
*/
void change_plane_JV( VideoParameters *p_Vid, int nplane )
{
Slice *currSlice = p_Vid->currentSlice;
p_Vid->colour_plane_id = nplane;
p_Vid->mb_data = p_Vid->mb_data_JV[nplane];
p_Vid->dec_picture = p_Vid->dec_picture_JV[nplane];
currSlice->p_colocated = currSlice->Co_located_JV[nplane];
}
/*!
************************************************************************
* \brief
* make frame picture from each plane data
* for 4:4:4 Independent mode
************************************************************************
*/
void make_frame_picture_JV(VideoParameters *p_Vid)
{
int uv, line;
int nsize;
int nplane;
p_Vid->dec_picture = p_Vid->dec_picture_JV[0];
// Copy Storable Params
for( nplane=0; nplane<MAX_PLANE; nplane++ )
{
copy_storable_param_JV( p_Vid, &p_Vid->dec_picture->JVmotion[nplane], &p_Vid->dec_picture_JV[nplane]->motion );
}
// This could be done with pointers and seems not necessary
for( uv=0; uv<2; uv++ )
{
for( line=0; line<p_Vid->height; line++ )
{
nsize = sizeof(imgpel) * p_Vid->width;
memcpy( p_Vid->dec_picture->imgUV[uv]->img[line], p_Vid->dec_picture_JV[uv+1]->imgY->img[line], nsize );
}
free_storable_picture(p_Vid, p_Vid->dec_picture_JV[uv+1]);
}
}