forked from mirror/libbpg
470 lines
17 KiB
C++
470 lines
17 KiB
C++
/* The copyright in this software is being made available under the BSD
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* License, included below. This software may be subject to other third party
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* and contributor rights, including patent rights, and no such rights are
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* granted under this license.
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*
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* Copyright (c) 2010-2014, ITU/ISO/IEC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __TCOMCODINGSTATISTICS__
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#define __TCOMCODINGSTATISTICS__
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#include "TypeDef.h"
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#include <stdio.h>
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#include <string>
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#include <map>
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#include <math.h>
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#include "TComChromaFormat.h"
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static const Int64 TCOMCODINGSTATISTICS_ENTROPYSCALE=32768;
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enum TComCodingStatisticsType
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{
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STATS__NAL_UNIT_TOTAL_BODY,// This is a special case and is not included in the total sums.
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STATS__NAL_UNIT_PACKING,
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STATS__EMULATION_PREVENTION_3_BYTES,
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STATS__NAL_UNIT_HEADER_BITS,
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STATS__CABAC_INITIALISATION,
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STATS__CABAC_BITS__TQ_BYPASS_FLAG,
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STATS__CABAC_BITS__SKIP_FLAG,
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STATS__CABAC_BITS__MERGE_FLAG,
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STATS__CABAC_BITS__MERGE_INDEX,
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STATS__CABAC_BITS__MVP_IDX,
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STATS__CABAC_BITS__SPLIT_FLAG,
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STATS__CABAC_BITS__PART_SIZE,
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STATS__CABAC_BITS__PRED_MODE,
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STATS__CABAC_BITS__INTRA_DIR_ANG,
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STATS__CABAC_BITS__INTER_DIR,
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STATS__CABAC_BITS__REF_FRM_IDX,
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STATS__CABAC_BITS__MVD,
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STATS__CABAC_BITS__MVD_EP,
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STATS__CABAC_BITS__TRANSFORM_SUBDIV_FLAG,
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STATS__CABAC_BITS__QT_ROOT_CBF,
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STATS__CABAC_BITS__DELTA_QP_EP,
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STATS__CABAC_BITS__CHROMA_QP_ADJUSTMENT,
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STATS__CABAC_BITS__QT_CBF,
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STATS__CABAC_BITS__CROSS_COMPONENT_PREDICTION,
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STATS__CABAC_BITS__TRANSFORM_SKIP_FLAGS,
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STATS__CABAC_BITS__LAST_SIG_X_Y,
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STATS__CABAC_BITS__SIG_COEFF_GROUP_FLAG,
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STATS__CABAC_BITS__SIG_COEFF_MAP_FLAG,
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STATS__CABAC_BITS__GT1_FLAG,
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STATS__CABAC_BITS__GT2_FLAG,
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STATS__CABAC_BITS__SIGN_BIT,
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STATS__CABAC_BITS__ESCAPE_BITS,
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STATS__CABAC_BITS__SAO,
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STATS__CABAC_TRM_BITS,
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STATS__CABAC_FIXED_BITS,
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STATS__CABAC_PCM_ALIGN_BITS,
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STATS__CABAC_PCM_CODE_BITS,
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STATS__BYTE_ALIGNMENT_BITS,
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STATS__TRAILING_BITS,
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STATS__EXPLICIT_RDPCM_BITS,
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STATS__CABAC_EP_BIT_ALIGNMENT,
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STATS__CABAC_BITS__ALIGNED_SIGN_BIT,
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STATS__CABAC_BITS__ALIGNED_ESCAPE_BITS,
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STATS__NUM_STATS
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};
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static inline const Char* getName(TComCodingStatisticsType name)
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{
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static const Char *statNames[]=
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{
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"NAL_UNIT_TOTAL_BODY", // This is a special case and is not included in the total sums.
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"NAL_UNIT_PACKING",
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"EMULATION_PREVENTION_3_BYTES",
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"NAL_UNIT_HEADER_BITS",
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"CABAC_INITIALISATION-and-rounding",
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"CABAC_BITS__TQ_BYPASS_FLAG",
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"CABAC_BITS__SKIP_FLAG",
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"CABAC_BITS__MERGE_FLAG",
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"CABAC_BITS__MERGE_INDEX",
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"CABAC_BITS__MVP_IDX",
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"CABAC_BITS__SPLIT_FLAG",
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"CABAC_BITS__PART_SIZE",
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"CABAC_BITS__PRED_MODE",
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"CABAC_BITS__INTRA_DIR_ANG",
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"CABAC_BITS__INTER_DIR",
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"CABAC_BITS__REF_FRM_IDX",
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"CABAC_BITS__MVD",
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"CABAC_BITS__MVD_EP",
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"CABAC_BITS__TRANSFORM_SUBDIV_FLAG",
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"CABAC_BITS__QT_ROOT_CBF",
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"CABAC_BITS__DELTA_QP_EP",
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"CABAC_BITS__CHROMA_QP_ADJUSTMENT",
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"CABAC_BITS__QT_CBF",
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"CABAC_BITS__CROSS_COMPONENT_PREDICTION",
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"CABAC_BITS__TRANSFORM_SKIP_FLAGS",
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"CABAC_BITS__LAST_SIG_X_Y",
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"CABAC_BITS__SIG_COEFF_GROUP_FLAG",
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"CABAC_BITS__SIG_COEFF_MAP_FLAG",
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"CABAC_BITS__GT1_FLAG",
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"CABAC_BITS__GT2_FLAG",
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"CABAC_BITS__SIGN_BIT",
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"CABAC_BITS__ESCAPE_BITS",
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"CABAC_BITS__SAO",
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"CABAC_TRM_BITS",
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"CABAC_FIXED_BITS",
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"CABAC_PCM_ALIGN_BITS",
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"CABAC_PCM_CODE_BITS",
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"BYTE_ALIGNMENT_BITS",
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"TRAILING_BITS",
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"EXPLICIT_RDPCM_BITS",
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"CABAC_EP_BIT_ALIGNMENT",
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"CABAC_BITS__ALIGNED_SIGN_BIT",
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"CABAC_BITS__ALIGNED_ESCAPE_BITS"
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};
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assert(STATS__NUM_STATS == sizeof(statNames)/sizeof(Char *) && name < STATS__NUM_STATS);
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return statNames[name];
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}
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static inline Bool isAlignedBins(TComCodingStatisticsType statT) { return statT==STATS__CABAC_BITS__ALIGNED_SIGN_BIT || statT==STATS__CABAC_BITS__ALIGNED_ESCAPE_BITS; }
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static const UInt CODING_STATS_NUM_WIDTHS=7;
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static const UInt CODING_STATS_NUM_SUBCLASSES=CODING_STATS_NUM_WIDTHS*(1+MAX_NUM_COMPONENT+MAX_NUM_CHANNEL_TYPE);
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class TComCodingStatisticsClassType
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{
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public:
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TComCodingStatisticsClassType(const TComCodingStatisticsType t)
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: type(t), subClass(0)
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{ }
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TComCodingStatisticsClassType(const TComCodingStatisticsType t, const UInt log2w )
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: type(t), subClass(log2w)
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{ }
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TComCodingStatisticsClassType(const TComCodingStatisticsType t, const Int log2w )
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: type(t), subClass(log2w)
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{ }
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TComCodingStatisticsClassType(const TComCodingStatisticsType t, const ComponentID cid )
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: type(t), subClass((cid+1)*CODING_STATS_NUM_WIDTHS)
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{ }
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TComCodingStatisticsClassType(const TComCodingStatisticsType t, const ChannelType chid )
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: type(t), subClass((chid+MAX_NUM_COMPONENT+1)*CODING_STATS_NUM_WIDTHS)
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{ }
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TComCodingStatisticsClassType(const TComCodingStatisticsType t, const UInt log2w, const ComponentID cid )
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: type(t), subClass((cid+1)*CODING_STATS_NUM_WIDTHS + log2w)
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{ }
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TComCodingStatisticsClassType(const TComCodingStatisticsType t, const UInt log2w, const ChannelType chid )
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: type(t), subClass((chid+MAX_NUM_COMPONENT+1)*CODING_STATS_NUM_WIDTHS + log2w)
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{ }
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static UInt GetSubClassWidth(const UInt subClass)
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{
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return subClass%CODING_STATS_NUM_WIDTHS;
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}
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static const Char *GetSubClassString(const UInt subClass)
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{
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assert (subClass<CODING_STATS_NUM_SUBCLASSES);
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static const Char *strings[1+MAX_NUM_COMPONENT+MAX_NUM_CHANNEL_TYPE]={"-", "Y", "Cb", "Cr", "Luma", "Chroma"};
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return strings[subClass/CODING_STATS_NUM_WIDTHS];
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}
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TComCodingStatisticsType type;
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UInt subClass;
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};
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class TComCodingStatistics
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{
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public:
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struct StatLogValue
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{
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UInt values[512+1];
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StatLogValue()
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{
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const Double es=Double(TCOMCODINGSTATISTICS_ENTROPYSCALE);
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values[0]=0;
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for(UInt i=1; i<sizeof(values)/sizeof(UInt); i++)
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{
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values[i]=UInt( log(Double(i))*es/log(2.0) );
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}
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}
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};
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struct SStat
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{
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SStat() : bits(0), count(0), sum(0) { }
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Int64 bits;
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Int64 count;
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Int64 sum;
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Void clear() { bits=0; count=0; sum=0; }
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SStat &operator+=(const SStat &src)
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{ bits+=src.bits; count+=src.count; sum+=src.sum; return *this; }
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};
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class TComCodingStatisticsData
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{
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private:
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SStat statistics[STATS__NUM_STATS+1][CODING_STATS_NUM_SUBCLASSES];
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SStat statistics_ep[STATS__NUM_STATS+1][CODING_STATS_NUM_SUBCLASSES ];
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std::map<std::string, SStat> mappings_ep;
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friend class TComCodingStatistics;
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};
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private:
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TComCodingStatisticsData data;
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TComCodingStatistics() : data()
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{ }
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static Void OutputLine(const Char *pName, const Char sep, UInt width, const Char *pSubClassStr, const SStat &sCABAC, const SStat &sEP)
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{
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if (width==0)
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OutputLine(pName, sep, "-", pSubClassStr, sCABAC, sEP);
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else
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printf("%c%-45s%c %6d %6s %12lld %12lld %12lld %12lld %12lld %12lld %12lld (%12lld)%c\n",
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sep=='~'?'[':' ', pName, sep, 1<<width, pSubClassStr,
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sCABAC.count, sCABAC.sum, sCABAC.bits, sEP.count, sEP.sum, sEP.bits, sCABAC.bits+sEP.bits, (sCABAC.bits+sEP.bits)/8, sep=='~'?']':' ');
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}
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static Void OutputLine(const Char *pName, const Char sep, const Char *pWidthString, const Char *pSubClassStr, const SStat &sCABAC, const SStat &sEP)
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{
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printf("%c%-45s%c %6s %6s %12lld %12lld %12lld %12lld %12lld %12lld %12lld (%12lld)%c\n",
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sep=='~'?'[':' ', pName, sep, pWidthString, pSubClassStr,
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sCABAC.count, sCABAC.sum, sCABAC.bits, sEP.count, sEP.sum, sEP.bits, sCABAC.bits+sEP.bits, (sCABAC.bits+sEP.bits)/8, sep=='~'?']':' ');
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}
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static Void OutputLine(const Char *pName, const Char sep, const Char *pWidthString, const Char *pSubClassStr, const SStat &sEP)
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{
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printf("%c%-45s%c %6s %6s %12s %12s %12s %12lld %12lld %12lld %12lld (%12lld)%c\n",
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sep=='~'?'[':' ', pName, sep, pWidthString, pSubClassStr,
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"", "", "", sEP.count, sEP.sum, sEP.bits, sEP.bits, (sEP.bits)/8, sep=='~'?']':' ');
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}
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static Void OutputDashedLine(const Char *pText)
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{
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printf("--%s",pText);
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UInt tot=0;
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for(;pText[tot]!=0; tot++);
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tot+=2;
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for (; tot<168; tot++)
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{
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printf("-");
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}
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printf("\n");
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}
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~TComCodingStatistics()
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{
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const Int64 es=TCOMCODINGSTATISTICS_ENTROPYSCALE;
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Int64 cr=0; // CABAC remainder, which is added to "STATS__CABAC_INITIALISATION"
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{
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Int64 totalCABACbits=0, roundedCABACbits=0;
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for(Int i=STATS__NAL_UNIT_PACKING; i<STATS__NUM_STATS; i++)
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{
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for(UInt c=0; c<CODING_STATS_NUM_SUBCLASSES; c++)
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{
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totalCABACbits+=data.statistics[i][c].bits;
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roundedCABACbits+=data.statistics[i][c].bits/es;
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}
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}
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Int64 remainder=totalCABACbits - roundedCABACbits*es;
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cr=(remainder+es/2)/es;
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}
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printf("Note %s will be excluded from the total as it should be the sum of all the other entries (except for %s)\n", getName(STATS__NAL_UNIT_TOTAL_BODY), getName(STATS__NAL_UNIT_PACKING));
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printf(" %-45s- Width Type CABAC Count CABAC Sum CABAC bits EP Count EP Sum EP bits Total bits ( Total bytes)\n", "Decoder statistics");
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OutputDashedLine("");
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SStat cabacTotalBits, epTotalBits;
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SStat statTotals_cabac[CODING_STATS_NUM_SUBCLASSES];
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SStat statTotals_ep[CODING_STATS_NUM_SUBCLASSES];
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for(Int i=0; i<STATS__NUM_STATS; i++)
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{
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SStat cabacSubTotal, epSubTotal;
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Bool bHadClassifiedEntry=false;
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const Char *pName=getName(TComCodingStatisticsType(i));
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for(UInt c=0; c<CODING_STATS_NUM_SUBCLASSES; c++)
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{
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SStat &sCABACorig=data.statistics[i][c];
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SStat &sEP=data.statistics_ep[i][c];
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if (sCABACorig.bits==0 && sEP.bits==0) continue;
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SStat sCABAC;
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{
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Int64 thisCABACbits=sCABACorig.bits/es; if (i==STATS__CABAC_INITIALISATION && sCABACorig.bits!=0) { thisCABACbits+=cr; cr=0; }
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sCABAC.bits=thisCABACbits; sCABAC.count=sCABACorig.count; sCABAC.sum=sCABACorig.sum;
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}
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UInt width=TComCodingStatisticsClassType::GetSubClassWidth(c);
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OutputLine(pName, ':', width, TComCodingStatisticsClassType::GetSubClassString(c), sCABAC, sEP);
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cabacSubTotal+=sCABAC;
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epSubTotal+=sEP;
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if (i!=STATS__NAL_UNIT_TOTAL_BODY)
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{
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cabacTotalBits+=sCABAC;
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epTotalBits+=sEP;
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statTotals_cabac[c]+=sCABAC;
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statTotals_ep[c]+=sEP;
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}
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bHadClassifiedEntry=bHadClassifiedEntry||(c!=0);
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}
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if (bHadClassifiedEntry)
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{
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OutputLine(pName, '~', "~~ST~~", "~~ST~~", cabacSubTotal, epSubTotal);
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}
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if (i==STATS__NAL_UNIT_TOTAL_BODY)
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{
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OutputDashedLine("");
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}
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}
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OutputDashedLine("");
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OutputLine("CABAC Sub-total", '~', "~~ST~~", "~~ST~~", cabacTotalBits, epTotalBits);
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OutputDashedLine("CAVLC HEADER BITS");
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SStat cavlcTotalBits;
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for(std::map<std::string, SStat>::iterator it=data.mappings_ep.begin(); it!=data.mappings_ep.end(); it++)
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{
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SStat s=it->second;
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cavlcTotalBits+=s;
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OutputLine(it->first.c_str(), ':', "-", "-", s);
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}
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OutputDashedLine("");
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OutputLine("CAVLC Header Sub-total", '~', "~~ST~~", "~~ST~~", cavlcTotalBits);
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// Now output the breakdowns
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OutputDashedLine("CABAC Break down by size");
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for(UInt s=0; s<CODING_STATS_NUM_WIDTHS; s++)
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{
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SStat subTotalCabac, subTotalEP;
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for(UInt c=0; c<CODING_STATS_NUM_SUBCLASSES; c+=CODING_STATS_NUM_WIDTHS)
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{
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subTotalCabac+=statTotals_cabac[c+s];
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subTotalEP+=statTotals_ep[c+s];
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}
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if (subTotalCabac.bits!=0 || subTotalEP.bits!=0)
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{
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OutputLine("CABAC by size Sub-total", '=', s, "All", subTotalCabac, subTotalEP);
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}
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}
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OutputDashedLine("Break down by component/Channel type");
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for(UInt c=0; c<CODING_STATS_NUM_SUBCLASSES; c+=CODING_STATS_NUM_WIDTHS)
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{
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SStat subTotalCabac, subTotalEP;
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for(UInt s=0; s<CODING_STATS_NUM_WIDTHS; s++)
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{
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subTotalCabac+=statTotals_cabac[c+s];
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subTotalEP+=statTotals_ep[c+s];
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}
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if (subTotalCabac.bits!=0 || subTotalEP.bits!=0)
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{
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OutputLine("CABAC by type Sub-total", '=', "-", TComCodingStatisticsClassType::GetSubClassString(c), subTotalCabac, subTotalEP);
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}
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}
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OutputDashedLine("Break down by size and component/Channel type");
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for(UInt c=0; c<CODING_STATS_NUM_SUBCLASSES; c+=CODING_STATS_NUM_WIDTHS)
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{
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for(UInt s=0; s<CODING_STATS_NUM_WIDTHS; s++)
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{
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SStat subTotalCabac, subTotalEP;
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subTotalCabac+=statTotals_cabac[c+s];
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subTotalEP+=statTotals_ep[c+s];
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if (subTotalCabac.bits!=0 || subTotalEP.bits!=0)
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{
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OutputLine("CABAC by size and type Sub-total", '=', s, TComCodingStatisticsClassType::GetSubClassString(c), subTotalCabac, subTotalEP);
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}
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}
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}
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OutputDashedLine("");
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OutputLine("CABAC Sub-total", '~', "~~ST~~", "~~ST~~", cabacTotalBits, epTotalBits);
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OutputLine("CAVLC Header Sub-total", '~', "~~ST~~", "~~ST~~", cavlcTotalBits);
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OutputDashedLine("GRAND TOTAL");
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epTotalBits+=cavlcTotalBits;
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OutputLine("TOTAL", '~', "~~GT~~", "~~GT~~", cabacTotalBits, epTotalBits);
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}
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public:
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static TComCodingStatistics& GetSingletonInstance()
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{
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static TComCodingStatistics inst;
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return inst;
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}
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static const TComCodingStatisticsData &GetStatistics() { return GetSingletonInstance().data; }
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static Void SetStatistics(const TComCodingStatisticsData &src) { GetSingletonInstance().data=src; }
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static SStat &GetStatisticEP(const TComCodingStatisticsClassType &stat) { return GetSingletonInstance().data.statistics_ep[stat.type][stat.subClass]; }
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static SStat &GetStatisticEP(const std::string &str) { return GetSingletonInstance().data.mappings_ep[str]; }
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static SStat &GetStatisticEP(const Char *pKey) {return GetStatisticEP(std::string(pKey)); }
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static Void IncrementStatisticEP(const TComCodingStatisticsClassType &stat, const Int numBits, const Int value)
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{
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SStat &s=GetStatisticEP(stat);
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s.bits+=numBits;
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s.count++;
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s.sum+=value;
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}
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static Void IncrementStatisticEP(const std::string &str, const Int numBits, const Int value)
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{
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SStat &s=GetStatisticEP(str);
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s.bits+=numBits;
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s.count++;
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s.sum+=value;
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}
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static Void IncrementStatisticEP(const Char *pKey, const Int numBits, const Int value)
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{
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SStat &s=GetStatisticEP(pKey);
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s.bits+=numBits;
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s.count++;
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s.sum+=value;
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}
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StatLogValue values;
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static Void UpdateCABACStat(const TComCodingStatisticsClassType &stat, UInt uiRangeBefore, UInt uiRangeAfter, Int val)
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{
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TComCodingStatistics &inst=GetSingletonInstance();
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// doing rangeBefore*p(x)=rangeAfter
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// p(x)=rangeAfter/rangeBefore
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// entropy = -log2(p(x))=-log(p(x))/log(2) = -(log rangeAfter - log rangeBefore) / log(2) = (log rangeBefore / log 2 - log rangeAfter / log 2)
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SStat &s=inst.data.statistics[stat.type][stat.subClass];
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s.bits+=inst.values.values[uiRangeBefore]-inst.values.values[uiRangeAfter];
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s.count++;
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s.sum+=val;
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}
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};
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#endif
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