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Separated context related functions and arrays to context.h/.c

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This commit is contained in:
Marko Viitanen 2012-08-15 13:22:31 +03:00
parent d5d0846e92
commit 14fed8bac7
8 changed files with 361 additions and 173 deletions
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2
build/VS2010/HEVC_encoder.vcxproj
View file

@ -83,6 +83,7 @@
<ClCompile Include="..\..\src\bitstream.c" /> <ClCompile Include="..\..\src\bitstream.c" />
<ClCompile Include="..\..\src\cabac.c" /> <ClCompile Include="..\..\src\cabac.c" />
<ClCompile Include="..\..\src\config.c" /> <ClCompile Include="..\..\src\config.c" />
<ClCompile Include="..\..\src\context.c" />
<ClCompile Include="..\..\src\encmain.c" /> <ClCompile Include="..\..\src\encmain.c" />
<ClCompile Include="..\..\src\encoder.c" /> <ClCompile Include="..\..\src\encoder.c" />
<ClCompile Include="..\..\src\intra.c" /> <ClCompile Include="..\..\src\intra.c" />
@ -94,6 +95,7 @@
<ClInclude Include="..\..\src\bitstream.h" /> <ClInclude Include="..\..\src\bitstream.h" />
<ClInclude Include="..\..\src\cabac.h" /> <ClInclude Include="..\..\src\cabac.h" />
<ClInclude Include="..\..\src\config.h" /> <ClInclude Include="..\..\src\config.h" />
<ClInclude Include="..\..\src\context.h" />
<ClInclude Include="..\..\src\encoder.h" /> <ClInclude Include="..\..\src\encoder.h" />
<ClInclude Include="..\..\src\global.h" /> <ClInclude Include="..\..\src\global.h" />
<ClInclude Include="..\..\src\intra.h" /> <ClInclude Include="..\..\src\intra.h" />

6
build/VS2010/HEVC_encoder.vcxproj.filters
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@ -42,6 +42,9 @@
<ClCompile Include="..\..\src\transform.c"> <ClCompile Include="..\..\src\transform.c">
<Filter>Source Files</Filter> <Filter>Source Files</Filter>
</ClCompile> </ClCompile>
<ClCompile Include="..\..\src\context.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<ClInclude Include="..\..\src\global.h"> <ClInclude Include="..\..\src\global.h">
@ -71,5 +74,8 @@
<ClInclude Include="..\..\src\transform.h"> <ClInclude Include="..\..\src\transform.h">
<Filter>Header Files</Filter> <Filter>Header Files</Filter>
</ClInclude> </ClInclude>
<ClInclude Include="..\..\src\context.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup> </ItemGroup>
</Project> </Project>

40
src/cabac.c
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@ -209,9 +209,9 @@ void cabac_write(cabac_data* data)
void cabac_encodeFlush(cabac_data* data, uint8_t end ) void cabac_encodeFlush(cabac_data* data, uint8_t end )
{ {
data->uiRange = 2; data->uiRange -= 2;
data->uiLow += 2; data->uiLow += data->uiRange;
data->uiLow <<= 7; data->uiLow <<= 7;
data->uiRange = 2 << 7; data->uiRange = 2 << 7;
data->bitsLeft -= 7; data->bitsLeft -= 7;
@ -221,10 +221,10 @@ void cabac_encodeFlush(cabac_data* data, uint8_t end )
} }
cabac_finish(data); cabac_finish(data);
if(!end) bitstream_put(data->stream,1,1);
{ bitstream_align(data->stream);
bitstream_put(data->stream,1,1);
} cabac_start(data);
} }
void cabac_finish(cabac_data* data) void cabac_finish(cabac_data* data)
@ -344,31 +344,3 @@ void cabac_encodeBinsEP(cabac_data* data, uint32_t binValues, int numBins )
cabac_write(data); cabac_write(data);
} }
} }
void cabac_encoderflush(cabac_data* data, uint8_t end)
{
cabac_encodeBinTrm(data,1);
cabac_finish(data);
bitstream_put(data->stream,1,1);
cabac_start(data);
data->uiRange = 2;
data->uiLow += 2;
data->uiLow <<= 7;
data->uiRange = 2 << 7;
data->bitsLeft -= 7;
if(data->bitsLeft < 12)
{
cabac_write(data);
}
cabac_finish(data);
if(!end)
{
bitstream_put(data->stream, 1, 1 ); // stop bit
}
}

4
src/cabac.h
View file

@ -61,11 +61,11 @@ void cabac_encodeBin(cabac_data* data, uint32_t binValue );
void cabac_encodeFlush(cabac_data* data, uint8_t end ); void cabac_encodeFlush(cabac_data* data, uint8_t end );
void cabac_encodeBinEP(cabac_data* data, uint32_t binValue ); void cabac_encodeBinEP(cabac_data* data, uint32_t binValue );
void cabac_encodeBinsEP(cabac_data* data, uint32_t binValues, int numBins ); void cabac_encodeBinsEP(cabac_data* data, uint32_t binValues, int numBins );
void cabac_encodeBinTrm(cabac_data* data, uint8_t binValue );
void cabac_write(cabac_data* data); void cabac_write(cabac_data* data);
void cabac_finish(cabac_data* data); void cabac_finish(cabac_data* data);
void cabac_flush(cabac_data* data); void cabac_flush(cabac_data* data);
void cabac_encoderflush(cabac_data* data, uint8_t end);
void cabac_encodeBinTrm(cabac_data* data, uint8_t binValue );
#ifdef _DEBUG #ifdef _DEBUG

191
src/context.c Normal file
View file

@ -0,0 +1,191 @@
/**
* Part of HEVC Encoder
* By Marko Viitanen ( fador at iki.fi ), Tampere University of Technology, Department of Computer Systems.
*/
/*! \file context.c
\brief Functions for context derication
\author Marko Viitanen
\date 2012-08
This file contains context derivation functions
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "global.h"
#include "config.h"
#include "encoder.h"
#include "cabac.h"
#include "context.h"
/* CONTEXTS */
/* ToDo: move somewhere else */
cabac_ctx *SplitFlagSCModel;
cabac_ctx g_SplitFlagSCModel[3]; /*<! \brief split flag context models */
cabac_ctx g_IntraModeSCModel; /*<! \brief intra mode context models */
cabac_ctx g_ChromaPredSCModel[2];
cabac_ctx g_TransSubdivSCModel[4]; /*<! \brief intra mode context models */
cabac_ctx g_QtCbfSCModelY[3];
cabac_ctx g_QtCbfSCModelU[3];
//cabac_ctx g_QtCbfSCModelV[3];
cabac_ctx g_PartSizeSCModel;
cabac_ctx g_CUSigCoeffGroupSCModel[4];
cabac_ctx g_CUSigSCModel_luma[24];
cabac_ctx g_CUSigSCModel_chroma[24];
cabac_ctx g_CuCtxLastY_luma[15];
cabac_ctx g_CuCtxLastY_chroma[15];
cabac_ctx g_CuCtxLastX_luma[15];
cabac_ctx g_CuCtxLastX_chroma[15];
cabac_ctx g_CUOneSCModel_luma[24];
void init_contexts(encoder_control *encoder)
{
uint16_t i;
/* Initialize contexts */
/* ToDo: add P/B slice */
ctx_init(&g_SplitFlagSCModel[0], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][0]);
ctx_init(&g_SplitFlagSCModel[1], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][1]);
ctx_init(&g_SplitFlagSCModel[2], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][2]);
ctx_init(&g_IntraModeSCModel, encoder->QP, INIT_INTRA_PRED_MODE[SLICE_I]);
ctx_init(&g_ChromaPredSCModel[0], encoder->QP, INIT_CHROMA_PRED_MODE[SLICE_I][0]);
ctx_init(&g_ChromaPredSCModel[1], encoder->QP, INIT_CHROMA_PRED_MODE[SLICE_I][1]);
for(i = 0; i < 4; i++)
{
ctx_init(&g_TransSubdivSCModel[i], encoder->QP, INIT_TRANS_SUBDIV_FLAG[SLICE_I][i]);
ctx_init(&g_CUSigCoeffGroupSCModel[i], encoder->QP, INIT_SIG_CG_FLAG[SLICE_I][i]);
}
for(i = 0; i < 3; i++)
{
ctx_init(&g_QtCbfSCModelY[i], encoder->QP, INIT_QT_CBF[SLICE_I][i]);
ctx_init(&g_QtCbfSCModelU[i], encoder->QP, INIT_QT_CBF[SLICE_I][i+3]);
//cxt_init(&g_QtCbfSCModelV[i], encoder->QP, INIT_QT_CBF[SLICE_I][i]);
}
for(i = 0; i < 15; i++)
{
ctx_init(&g_CuCtxLastY_luma[i], encoder->QP, INIT_LAST[SLICE_I][i] );
ctx_init(&g_CuCtxLastX_luma[i], encoder->QP, INIT_LAST[SLICE_I][i] );
ctx_init(&g_CuCtxLastY_chroma[i], encoder->QP, INIT_LAST[SLICE_I][i+15] );
ctx_init(&g_CuCtxLastX_chroma[i], encoder->QP, INIT_LAST[SLICE_I][i+15] );
}
for(i = 0; i < 24; i++)
{
ctx_init(&g_CUOneSCModel_luma[i], encoder->QP, INIT_ONE_FLAG[SLICE_I][i]);
ctx_init(&g_CUSigSCModel_luma[i], encoder->QP, INIT_SIG_FLAG[SLICE_I][i]);
if(i < 21)
{
ctx_init(&g_CUSigSCModel_chroma[i], encoder->QP, INIT_SIG_FLAG[SLICE_I][i+24]);
}
}
}
//uint8_t get_context_coeff_abs_significant_flag(uint8_t
/** Pattern decision for context derivation process of significant_coeff_flag
* \param sigCoeffGroupFlag pointer to prior coded significant coeff group
* \param posXCG column of current coefficient group
* \param posYCG row of current coefficient group
* \param width width of the block
* \param height height of the block
* \returns pattern for current coefficient group
*/
/*
Int TComTrQuant::calcPatternSigCtx( const UInt* sigCoeffGroupFlag, UInt posXCG, UInt posYCG, Int width, Int height )
{
if( width == 4 && height == 4 ) return -1;
UInt sigRight = 0;
UInt sigLower = 0;
width >>= 2;
height >>= 2;
if( posXCG < width - 1 )
{
sigRight = (sigCoeffGroupFlag[ posYCG * width + posXCG + 1 ] != 0);
}
if (posYCG < height - 1 )
{
sigLower = (sigCoeffGroupFlag[ (posYCG + 1 ) * width + posXCG ] != 0);
}
return sigRight + (sigLower<<1);
}
*/
/** Context derivation process of coeff_abs_significant_flag
* \param patternSigCtx pattern for current coefficient group
* \param posX column of current scan position
* \param posY row of current scan position
* \param blockType log2 value of block size if square block, or 4 otherwise
* \param width width of the block
* \param height height of the block
* \param textureType texture type (TEXT_LUMA...)
* \returns ctxInc for current scan position
*/
/*
Int TComTrQuant::getSigCtxInc (
Int patternSigCtx,
UInt scanIdx,
Int posX,
Int posY,
Int blockType,
Int width
,Int height
,TextType textureType
)
{
const Int ctxIndMap[16] =
{
0, 1, 4, 5,
2, 3, 4, 5,
6, 6, 8, 8,
7, 7, 8, 8
};
if( posX + posY == 0 )
{
return 0;
}
if ( blockType == 2 )
{
return ctxIndMap[ 4 * posY + posX ];
}
Int offset = blockType == 3 ? (scanIdx==SCAN_DIAG ? 9 : 15) : (textureType == TEXT_LUMA ? 21 : 12);
Int posXinSubset = posX-((posX>>2)<<2);
Int posYinSubset = posY-((posY>>2)<<2);
Int cnt = 0;
if(patternSigCtx==0)
{
cnt = posXinSubset+posYinSubset<=2 ? (posXinSubset+posYinSubset==0 ? 2 : 1) : 0;
}
else if(patternSigCtx==1)
{
cnt = posYinSubset<=1 ? (posYinSubset==0 ? 2 : 1) : 0;
}
else if(patternSigCtx==2)
{
cnt = posXinSubset<=1 ? (posXinSubset==0 ? 2 : 1) : 0;
}
else
{
cnt = 2;
}
return (( textureType == TEXT_LUMA && ((posX>>2) + (posY>>2)) > 0 ) ? 3 : 0) + offset + cnt;
}
*/

101
src/context.h Normal file
View file

@ -0,0 +1,101 @@
/**
* HEVC Encoder
* - Marko Viitanen ( fador at iki.fi ), Tampere University of Technology, Department of Computer Systems.
*/
/*! \file context.h
\brief Context
\author Marko Viitanen
\date 2012-08
Context derivation function headers
*/
#ifndef __CONTEXT_H
#define __CONTEXT_H
void init_contexts(encoder_control *encoder);
/* CONTEXTS */
extern cabac_ctx *SplitFlagSCModel;
extern cabac_ctx g_SplitFlagSCModel[3];
extern cabac_ctx g_IntraModeSCModel;
extern cabac_ctx g_ChromaPredSCModel[2];
extern cabac_ctx g_TransSubdivSCModel[4];
extern cabac_ctx g_QtCbfSCModelY[3];
extern cabac_ctx g_QtCbfSCModelU[3];
extern cabac_ctx g_PartSizeSCModel;
extern cabac_ctx g_CUSigCoeffGroupSCModel[4];
extern cabac_ctx g_CUSigSCModel_luma[24];
extern cabac_ctx g_CUSigSCModel_chroma[24];
extern cabac_ctx g_CuCtxLastY_luma[15];
extern cabac_ctx g_CuCtxLastY_chroma[15];
extern cabac_ctx g_CuCtxLastX_luma[15];
extern cabac_ctx g_CuCtxLastX_chroma[15];
extern cabac_ctx g_CUOneSCModel_luma[24];
static const uint8_t INIT_SPLIT_FLAG[3][3] =
{ { 107, 139, 126 },
{ 107, 139, 126 },
{ 139, 141, 157 } };
static const uint8_t INIT_INTRA_PRED_MODE[3] = { 183,154,184 };
static const uint8_t INIT_CHROMA_PRED_MODE[3][2] = { { 152, 139 }, { 152, 139 }, { 63, 139 } };
#define CNU 154
static const uint8_t INIT_TRANS_SUBDIV_FLAG[3][4] =
{
{ CNU, 153, 138, 138 },
{ CNU, 124, 138, 94 },
{ CNU, 224, 167, 122 }
};
static const uint8_t INIT_QT_CBF[3][6] =
{
{ 153, 111, CNU, 149, 92, 167 },
{ 153, 111, CNU, 149, 107, 167 },
{ 111, 141, CNU, 94, 138, 182 }
};
static const uint8_t INIT_SIG_CG_FLAG[3][4] =
{ { 121, 140, 61, 154 }, { 121, 140, 61, 154 }, { 91, 171, 134, 141 } };
static const uint8_t INIT_SIG_FLAG[3][45] =
{{170,154,139,153,139,123,123, 63,124,153,153,152,152,152,137,152,137,137,166,183,140,136,153,
154,170,153,138,138,122,121,122,121,167,153,167,136,121,122,136,121,122, 91,151,183,140,},
{155,154,139,153,139,123,123, 63,153,153,153,152,152,152,137,152,137,122,166,183,140,136,153,
154,170,153,123,123,107,121,107,121,167,153,167,136,149,107,136,121,122, 91,151,183,140,},
{111,111,125,110,110, 94,124,108,124,139,139,139,168,124,138,124,138,107,107,125,141,179,153,
125,140,139,182,182,152,136,152,136,153,182,137,149,192,152,224,136, 31,136,136,139,111,} };
static const uint8_t INIT_LAST[3][30] =
{
{ 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, 79,
108, 123, 93, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
{ 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, 94,
108, 123, 108, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
{ 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, 79,
108, 123, 63, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU }
};
static const uint8_t INIT_ONE_FLAG[3][24] =
{
{154,196,167,167,154,152,167,182,182,134,149,136,153,121,136,122,169,208,166,167,154,152,167,182},
{154,196,196,167,154,152,167,182,182,134,149,136,153,121,136,137,169,194,166,167,154,167,137,182},
{140, 92,137,138,140,152,138,139,153, 74,149, 92,139,107,122,152,140,179,166,182,140,227,122,197}
};
#endif

130
src/encoder.c
View file

@ -24,6 +24,7 @@
#include "cabac.h" #include "cabac.h"
#include "picture.h" #include "picture.h"
#include "nal.h" #include "nal.h"
#include "context.h"
void init_encoder_control(encoder_control* control,bitstream* output) void init_encoder_control(encoder_control* control,bitstream* output)
{ {
@ -159,6 +160,7 @@ void encode_pic_parameter_set(encoder_control* encoder)
void encode_seq_parameter_set(encoder_control* encoder) void encode_seq_parameter_set(encoder_control* encoder)
{ {
int i;
#ifdef _DEBUG #ifdef _DEBUG
printf("=========== Sequence Parameter Set ID: 0 ===========\n"); printf("=========== Sequence Parameter Set ID: 0 ===========\n");
#endif #endif
@ -217,6 +219,10 @@ void encode_seq_parameter_set(encoder_control* encoder)
//WRITE_U(encoder->stream, 0, 1, "inter_ref_pic_set_prediction_flag"); //WRITE_U(encoder->stream, 0, 1, "inter_ref_pic_set_prediction_flag");
WRITE_U(encoder->stream, 0, 1, "long_term_ref_pics_present_flag"); WRITE_U(encoder->stream, 0, 1, "long_term_ref_pics_present_flag");
WRITE_U(encoder->stream, 0, 1, "sps_temporal_mvp_enable_flag"); WRITE_U(encoder->stream, 0, 1, "sps_temporal_mvp_enable_flag");
for(i = 0; i < MAX_DEPTH; i++)
{
WRITE_U(encoder->stream, 0, 1, "AMVP modeflag");
}
WRITE_U(encoder->stream, 0, 1, "sps_extension_flag"); WRITE_U(encoder->stream, 0, 1, "sps_extension_flag");
} }
@ -235,8 +241,6 @@ void encode_vid_parameter_set(encoder_control* encoder)
WRITE_UE(encoder->stream, 0, "vps_max_latency_increase"); WRITE_UE(encoder->stream, 0, "vps_max_latency_increase");
WRITE_U(encoder->stream, 0, 1, "vps_extension_flag"); WRITE_U(encoder->stream, 0, 1, "vps_extension_flag");
} }
void encode_slice_header(encoder_control* encoder) void encode_slice_header(encoder_control* encoder)
@ -283,75 +287,17 @@ void encode_slice_header(encoder_control* encoder)
WRITE_U(encoder->stream, 1, 1, "alignment"); WRITE_U(encoder->stream, 1, 1, "alignment");
} }
/* CONTEXTS */
/* ToDo: move somewhere else */
cabac_ctx *SplitFlagSCModel;
cabac_ctx g_SplitFlagSCModel[3]; /*<! \brief split flag context models */
cabac_ctx g_IntraModeSCModel; /*<! \brief intra mode context models */
cabac_ctx g_ChromaPredSCModel[2];
cabac_ctx g_TransSubdivSCModel[4]; /*<! \brief intra mode context models */
cabac_ctx g_QtCbfSCModelY[3];
cabac_ctx g_QtCbfSCModelU[3];
//cabac_ctx g_QtCbfSCModelV[3];
cabac_ctx g_PartSizeSCModel;
cabac_ctx g_CUSigCoeffGroupSCModel[4];
cabac_ctx g_CUSigSCModel_luma[24];
cabac_ctx g_CUSigSCModel_chroma[24];
cabac_ctx g_CuCtxLastY_luma[15];
cabac_ctx g_CuCtxLastY_chroma[15];
cabac_ctx g_CuCtxLastX_luma[15];
cabac_ctx g_CuCtxLastX_chroma[15];
cabac_ctx g_CUOneSCModel_luma[24];
void encode_slice_data(encoder_control* encoder) void encode_slice_data(encoder_control* encoder)
{ {
uint16_t xCtb,yCtb,i; uint16_t xCtb,yCtb;
/* Initialize contexts */
/* ToDo: add P/B slice */
ctx_init(&g_SplitFlagSCModel[0], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][0]);
ctx_init(&g_SplitFlagSCModel[1], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][1]);
ctx_init(&g_SplitFlagSCModel[2], encoder->QP, INIT_SPLIT_FLAG[SLICE_I][2]);
ctx_init(&g_IntraModeSCModel, encoder->QP, INIT_INTRA_PRED_MODE[SLICE_I]); init_contexts(encoder);
ctx_init(&g_ChromaPredSCModel[0], encoder->QP, INIT_CHROMA_PRED_MODE[SLICE_I][0]); //encoder->in.cur_pic.CU[1][2].type = CU_INTRA;
ctx_init(&g_ChromaPredSCModel[1], encoder->QP, INIT_CHROMA_PRED_MODE[SLICE_I][1]); //encoder->in.cur_pic.CU[1][3].type = CU_INTRA;
for(i = 0; i < 4; i++)
{
ctx_init(&g_TransSubdivSCModel[i], encoder->QP, INIT_TRANS_SUBDIV_FLAG[SLICE_I][i]);
ctx_init(&g_CUSigCoeffGroupSCModel[i], encoder->QP, INIT_SIG_CG_FLAG[SLICE_I][i]);
}
for(i = 0; i < 3; i++)
{
ctx_init(&g_QtCbfSCModelY[i], encoder->QP, INIT_QT_CBF[SLICE_I][i]);
ctx_init(&g_QtCbfSCModelU[i], encoder->QP, INIT_QT_CBF[SLICE_I][i+3]);
//cxt_init(&g_QtCbfSCModelV[i], encoder->QP, INIT_QT_CBF[SLICE_I][i]);
}
for(i = 0; i < 15; i++)
{
ctx_init(&g_CuCtxLastY_luma[i], encoder->QP, INIT_LAST[SLICE_I][i] );
ctx_init(&g_CuCtxLastX_luma[i], encoder->QP, INIT_LAST[SLICE_I][i] );
ctx_init(&g_CuCtxLastY_chroma[i], encoder->QP, INIT_LAST[SLICE_I][i+15] );
ctx_init(&g_CuCtxLastX_chroma[i], encoder->QP, INIT_LAST[SLICE_I][i+15] );
}
for(i = 0; i < 24; i++)
{
ctx_init(&g_CUOneSCModel_luma[i], encoder->QP, INIT_ONE_FLAG[SLICE_I][i]);
ctx_init(&g_CUSigSCModel_luma[i], encoder->QP, INIT_SIG_FLAG[SLICE_I][i]);
if(i < 21)
{
ctx_init(&g_CUSigSCModel_chroma[i], encoder->QP, INIT_SIG_FLAG[SLICE_I][i+24]);
}
}
encoder->in.cur_pic.CU[1][0].type = CU_INTRA;
encoder->in.cur_pic.CU[1][2].type = CU_INTRA;
/* Loop through every LCU in the slice */ /* Loop through every LCU in the slice */
for(yCtb = 0; yCtb < encoder->in.height_in_LCU; yCtb++) for(yCtb = 0; yCtb < encoder->in.height_in_LCU; yCtb++)
@ -379,6 +325,9 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
int i,x,y; int i,x,y;
uint8_t split_flag = (depth!=1)?1:0; uint8_t split_flag = (depth!=1)?1:0;
uint8_t split_model = 0; uint8_t split_model = 0;
uint8_t border_x = (encoder->in.width+1)<((xCtb>>(MAX_DEPTH-depth))+1)*(LCU_WIDTH>>depth);
uint8_t border_y = (encoder->in.height+1)<((yCtb>>(MAX_DEPTH-depth))+1)*(LCU_WIDTH>>depth);
uint8_t border = border_x | border_y;
/* Get left and top block split_flags and if they are present and true, increase model number */ /* Get left and top block split_flags and if they are present and true, increase model number */
if(xCtb > 0 && GET_SPLITDATA(&(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))-1+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)])) == 1) if(xCtb > 0 && GET_SPLITDATA(&(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))-1+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)])) == 1)
@ -389,21 +338,34 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
{ {
split_model++; split_model++;
} }
cabac.ctx = &g_SplitFlagSCModel[split_model];
/* When not in MAX_DEPTH, insert split flag and split the blocks if needed */ /* When not in MAX_DEPTH, insert split flag and split the blocks if needed */
if(depth != MAX_DEPTH) if(depth != MAX_DEPTH || border)
{ {
SET_SPLITDATA(&(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)]),split_flag); SET_SPLITDATA(&(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)]),split_flag);
CABAC_BIN(&cabac, split_flag, "SplitFlag"); cabac.ctx = &g_SplitFlagSCModel[split_model];
//Implisit split flag when on border
if(!border)
{
CABAC_BIN(&cabac, split_flag, "SplitFlag");
}
if(split_flag) if(split_flag)
{ {
/* Split blocks and remember to change x and y block positions */ /* Split blocks and remember to change x and y block positions */
uint8_t change = 1<<(MAX_DEPTH-1-depth); uint8_t change = 1<<(MAX_DEPTH-1-depth);
encode_coding_tree(encoder,xCtb,yCtb,depth+1); encode_coding_tree(encoder,xCtb,yCtb,depth+1);
encode_coding_tree(encoder,xCtb+change,yCtb,depth+1); if(!border_x)
encode_coding_tree(encoder,xCtb,yCtb+change,depth+1); {
encode_coding_tree(encoder,xCtb+change,yCtb+change,depth+1); encode_coding_tree(encoder,xCtb+change,yCtb,depth+1);
}
if(!border_y)
{
encode_coding_tree(encoder,xCtb,yCtb+change,depth+1);
}
if(!border)
{
encode_coding_tree(encoder,xCtb+change,yCtb+change,depth+1);
}
/* We don't need to do anything else here */ /* We don't need to do anything else here */
return; return;
} }
@ -422,7 +384,7 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
//If MODE_INTRA //If MODE_INTRA
//cabac.ctx = &PCMFlagSCModel; //cabac.ctx = &PCMFlagSCModel;
/* Code IPCM block */ /* Code IPCM block */
if(1)//encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)].type <= CU_PCM) if(encoder->in.cur_pic.CU[depth][(xCtb>>(MAX_DEPTH-depth))+(yCtb>>(MAX_DEPTH-depth))*(encoder->in.width_in_LCU<<MAX_DEPTH)].type <= CU_PCM)
{ {
cabac_encodeBinTrm(&cabac, 1); /* IPCMFlag == 1 */ cabac_encodeBinTrm(&cabac, 1); /* IPCMFlag == 1 */
//printf("\tIPCMFlag = 1\n"); //printf("\tIPCMFlag = 1\n");
@ -480,8 +442,11 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
*/ */
CABAC_BINS_EP(&cabac, 0, 5, "intraPredMode"); CABAC_BINS_EP(&cabac, 0, 5, "intraPredMode");
cabac.ctx = &g_ChromaPredSCModel[0]; if(encoder->in.video_format != FORMAT_400)
CABAC_BIN(&cabac,0,"IntraPredChroma"); {
cabac.ctx = &g_ChromaPredSCModel[0];
CABAC_BIN(&cabac,0,"IntraPredChroma");
}
/* Coeff */ /* Coeff */
/* Transform tree */ /* Transform tree */
@ -498,13 +463,16 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
*/ */
CbY = 1; /* Let's pretend we have luma coefficients */ CbY = 1; /* Let's pretend we have luma coefficients */
/* Non-zero chroma U Tcoeffs */ if(encoder->in.video_format != FORMAT_400)
cabac.ctx = &g_QtCbfSCModelU[0]; {
CABAC_BIN(&cabac,CbU,"cbf_chroma_u"); /* Non-zero chroma U Tcoeffs */
cabac.ctx = &g_QtCbfSCModelU[0];
CABAC_BIN(&cabac,CbU,"cbf_chroma_u");
/* Non-zero chroma V Tcoeffs */ /* Non-zero chroma V Tcoeffs */
/* Using the same ctx as before */ /* Using the same ctx as before */
CABAC_BIN(&cabac,CbV,"cbf_chroma_v"); CABAC_BIN(&cabac,CbV,"cbf_chroma_v");
}
/* Non-zero luma Tcoeffs */ /* Non-zero luma Tcoeffs */
cabac.ctx = &g_QtCbfSCModelY[1]; cabac.ctx = &g_QtCbfSCModelY[1];
@ -528,6 +496,8 @@ void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, ui
CABAC_BIN(&cabac,1,"significant_coeff_flag"); CABAC_BIN(&cabac,1,"significant_coeff_flag");
} }
/*UInt uiSigCoeffGroupFlag[ MLS_GRP_NUM ];
::memset( uiSigCoeffGroupFlag, 0, sizeof(UInt) * MLS_GRP_NUM );*/
/* n = 15 .. 0 coeff_abs_level_greater1_flag[ n ] */ /* n = 15 .. 0 coeff_abs_level_greater1_flag[ n ] */
/* coeff_abs_level_greater2_flag[ firstGreater1CoeffIdx] */ /* coeff_abs_level_greater2_flag[ firstGreater1CoeffIdx] */

54
src/encoder.h
View file

@ -67,60 +67,6 @@ void encode_slice_header(encoder_control* encoder);
void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, uint8_t depth); void encode_coding_tree(encoder_control* encoder,uint16_t xCtb,uint16_t yCtb, uint8_t depth);
void encode_lastSignificantXY(encoder_control* encoder,uint8_t lastpos_x, uint8_t lastpos_y, uint8_t width, uint8_t height, uint8_t type, uint8_t scan); void encode_lastSignificantXY(encoder_control* encoder,uint8_t lastpos_x, uint8_t lastpos_y, uint8_t width, uint8_t height, uint8_t type, uint8_t scan);
static const uint8_t INIT_SPLIT_FLAG[3][3] =
{ { 107, 139, 126 },
{ 107, 139, 126 },
{ 139, 141, 157 } };
static const uint8_t INIT_INTRA_PRED_MODE[3] = { 183,154,184 };
static const uint8_t INIT_CHROMA_PRED_MODE[3][2] = { { 152, 139 }, { 152, 139 }, { 63, 139 } };
#define CNU 154
static const uint8_t INIT_TRANS_SUBDIV_FLAG[3][4] =
{
{ CNU, 153, 138, 138 },
{ CNU, 124, 138, 94 },
{ CNU, 224, 167, 122 }
};
static const uint8_t INIT_QT_CBF[3][6] =
{
{ 153, 111, CNU, 149, 92, 167 },
{ 153, 111, CNU, 149, 107, 167 },
{ 111, 141, CNU, 94, 138, 182 }
};
static const uint8_t INIT_SIG_CG_FLAG[3][4] =
{ { 121, 140, 61, 154 }, { 121, 140, 61, 154 }, { 91, 171, 134, 141 } };
static const uint8_t INIT_SIG_FLAG[3][45] =
{{170,154,139,153,139,123,123, 63,124,153,153,152,152,152,137,152,137,137,166,183,140,136,153,
154,170,153,138,138,122,121,122,121,167,153,167,136,121,122,136,121,122, 91,151,183,140,},
{155,154,139,153,139,123,123, 63,153,153,153,152,152,152,137,152,137,122,166,183,140,136,153,
154,170,153,123,123,107,121,107,121,167,153,167,136,149,107,136,121,122, 91,151,183,140,},
{111,111,125,110,110, 94,124,108,124,139,139,139,168,124,138,124,138,107,107,125,141,179,153,
125,140,139,182,182,152,136,152,136,153,182,137,149,192,152,224,136, 31,136,136,139,111,} };
static const uint8_t INIT_LAST[3][30] =
{
{ 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, 79,
108, 123, 93, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
{ 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, 94,
108, 123, 108, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU },
{ 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, 79,
108, 123, 63, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU }
};
static const uint8_t INIT_ONE_FLAG[3][24] =
{
{154,196,167,167,154,152,167,182,182,134,149,136,153,121,136,122,169,208,166,167,154,152,167,182},
{154,196,196,167,154,152,167,182,182,134,149,136,153,121,136,137,169,194,166,167,154,167,137,182},
{140, 92,137,138,140,152,138,139,153, 74,149, 92,139,107,122,152,140,179,166,182,140,227,122,197}
};
static uint8_t* g_auiSigLastScan[4][7]; static uint8_t* g_auiSigLastScan[4][7];
static const uint8_t g_uiGroupIdx[ 32 ] = {0,1,2,3,4,4,5,5,6,6,6,6,7,7,7,7,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9}; static const uint8_t g_uiGroupIdx[ 32 ] = {0,1,2,3,4,4,5,5,6,6,6,6,7,7,7,7,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9};