ref: 2e5f1b213478bfe830ad846088d6ad14c1400dd5
dir: /codec/decoder/core/inc/mv_pred.h/
/*!
* \copy
* Copyright (c) 2009-2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
* \file mv_pred.h
*
* \brief Get MV predictor and update motion vector of mb cache
*
* \date 05/22/2009 Created
*
*************************************************************************************
*/
#ifndef WELS_MV_PRED_H__
#define WELS_MV_PRED_H__
#include "dec_frame.h"
#include "decoder_context.h"
namespace WelsDec {
/*!
* \brief update mv and ref_index cache for current MB, only for P_16x16 (SKIP inclusive)
* \param
* \param
*/
void UpdateP16x16MotionInfo (PDqLayer pCurDqLayer, int32_t listIdx, int8_t iRef, int16_t iMVs[2]);
/*!
* \brief update ref_index cache for current MB, only for P_16x16 (SKIP inclusive)
* \param
* \param
*/
void UpdateP16x16RefIdx (PDqLayer pCurDqLayer, int32_t listIdx, int8_t iRef);
/*!
* \brief update mv only cache for current MB, only for P_16x16 (SKIP inclusive)
* \param
* \param
*/
void UpdateP16x16MotionOnly (PDqLayer pCurDqLayer, int32_t listIdx, int16_t iMVs[2]);
/*!
* \brief update mv and ref_index cache for current MB, only for P_16x8
* \param
* \param
*/
void UpdateP16x8MotionInfo (PDqLayer pCurDqLayer, int16_t iMotionVector[LIST_A][30][MV_A],
int8_t iRefIndex[LIST_A][30],
int32_t listIdx, int32_t iPartIdx, int8_t iRef, int16_t iMVs[2]);
/*!
* \brief update mv and ref_index cache for current MB, only for P_8x16
* \param
* \param
*/
void UpdateP8x16MotionInfo (PDqLayer pCurDqLayer, int16_t iMotionVector[LIST_A][30][MV_A],
int8_t iRefIndex[LIST_A][30],
int32_t listIdx, int32_t iPartIdx, int8_t iRef, int16_t iMVs[2]);
/*!
* \brief get the motion predictor for skip mode
* \param
* \param output iMvp[]
*/
void PredPSkipMvFromNeighbor (PDqLayer pCurLayer, int16_t iMvp[2]);
/*!
* \brief get the motion predictor and reference for B-slice direct mode version 2
* \param
* \param output iMvp[] and ref
*/
int32_t PredMvBDirectSpatial (PWelsDecoderContext pCtx, int16_t iMvp[LIST_A][2], int8_t ref[LIST_A],
SubMbType& subMbType);
/*!
* \brief get Colocated MB for both Spatial and Temporal Direct Mode
* \param
* \param output MbType and SubMbType
*/
int32_t GetColocatedMb (PWelsDecoderContext pCtx, MbType& mbType, SubMbType& subMbType);
/*!
* \brief get the motion predictor for B-slice temporal direct mode 16x16
*/
int32_t PredBDirectTemporal (PWelsDecoderContext pCtx, int16_t iMvp[LIST_A][2], int8_t ref[LIST_A],
SubMbType& subMbType);
/*!
* \brief get the motion params for B-slice spatial direct mode
* \param
* \param output iMvp[]
*/
/*!
* \brief get the motion predictor for 4*4 or 8*8 or 16*16 block
* \param
* \param output iMvp[]
*/
void PredMv (int16_t iMotionVector[LIST_A][30][MV_A], int8_t iRefIndex[LIST_A][30],
int32_t listIdx, int32_t iPartIdx, int32_t iPartWidth, int8_t iRef, int16_t iMVP[2]);
/*!
* \brief get the motion predictor for inter16x8 MB
* \param
* \param output mvp_x and mvp_y
*/
void PredInter16x8Mv (int16_t iMotionVector[LIST_A][30][MV_A], int8_t iRefIndex[LIST_A][30],
int32_t listIdx, int32_t iPartIdx, int8_t iRef, int16_t iMVP[2]);
/*!
* \brief get the motion predictor for inter8x16 MB
* \param
* \param output mvp_x and mvp_y
*/
void PredInter8x16Mv (int16_t iMotionVector[LIST_A][30][MV_A], int8_t iRefIndex[LIST_A][30],
int32_t listIdx, int32_t iPartIdx, int8_t iRef, int16_t iMVP[2]);
/*!
* \brief Fill the spatial direct motion vectors for 8x8 direct MB
* \param
* \param output motion vector cache and motion vector deviation cache
*/
void FillSpatialDirect8x8Mv (PDqLayer pCurLayer, const int16_t& iIdx8, const int8_t& iPartCount, const int8_t& iPartW,
const SubMbType& subMbType, const bool& bIsLongRef, int16_t pMvDirect[LIST_A][2], int8_t iRef[LIST_A],
int16_t pMotionVector[LIST_A][30][MV_A], int16_t pMvdCache[LIST_A][30][MV_A]);
/*!
* \brief Fill the temporal direct motion vectors for 8x8 direct MB
* \param
* \param output motion vector cache and motion vector deviation cache
*/
void FillTemporalDirect8x8Mv (PDqLayer pCurLayer, const int16_t& iIdx8, const int8_t& iPartCount, const int8_t& iPartW,
const SubMbType& subMbType, int8_t iRef[LIST_A], int16_t (*mvColoc)[2],
int16_t pMotionVector[LIST_A][30][MV_A], int16_t pMvdCache[LIST_A][30][MV_A]);
/*!
* \brief returns ref_index in List_0 from the colocated ref_index in LIST_0.
* \param
* returns ref_index in List_0 of ref picture LIST_0
*/
int8_t MapColToList0 (PWelsDecoderContext& pCtx, const int8_t& colocRefIndexL0,
const int32_t& ref0Count); //ISO/IEC 14496-10:2009(E) (8-193)
/*!
* \brief update ref_index cache for current MB, for 8x8
* \param
* \param
*/
void Update8x8RefIdx (PDqLayer& pCurDqLayer, const int16_t& iPartIdx, const int32_t& listIdx, const int8_t& iRef);
} // namespace WelsDec
#endif//WELS_MV_PRED_H__