18d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/****************************************************************************** 28d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * 38d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * Copyright (C) 2015 The Android Open Source Project 48d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * 58d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * Licensed under the Apache License, Version 2.0 (the "License"); 68d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * you may not use this file except in compliance with the License. 78d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * You may obtain a copy of the License at: 88d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * 98d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * http://www.apache.org/licenses/LICENSE-2.0 108d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * 118d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * Unless required by applicable law or agreed to in writing, software 128d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * distributed under the License is distributed on an "AS IS" BASIS, 138d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 148d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * See the License for the specific language governing permissions and 158d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * limitations under the License. 168d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * 178d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S ***************************************************************************** 188d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 198d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 208d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 218d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S******************************************************************************* 228d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @file 238d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* ih264e_globals.c 248d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* 258d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief 268d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* Contains definitions of global variables used across the encoder 278d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* 288d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @author 298d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* ittiam 308d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* 318d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @par List of functions 328d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* 338d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* 348d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks 358d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* 368d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S******************************************************************************* 378d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 388d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 398d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/*****************************************************************************/ 408d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/* File Includes */ 418d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/*****************************************************************************/ 428d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 438d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/* User include files */ 448d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S#include "ih264_typedefs.h" 458d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S#include "ih264_defs.h" 468d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S#include "ih264e_defs.h" 478d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S#include "ih264e_globals.h" 488d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 498d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/*****************************************************************************/ 508d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/* Extern global definitions */ 518d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/*****************************************************************************/ 528d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 538d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 548d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 558d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief lamda for varying quantizer scales that would be used to 568d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* compute the RD cost while deciding on the MB modes. 578d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : qp 588d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : lambda 598d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks lambda = 0.85 * pow(2, (qp - 12)/3), when SSD is used as metric 608d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* for computing distortion (Bit rate estimation for cost function of H.264/ 618d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* AVC by Mohd Golam Sarwer et. al.) If the use of distortion metric is SAD 628d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* rather than SSD in the stage of encoding, consider sqrt(lambda) simply to 638d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* adjust lambda for the lack of squaring operation in the error computation 648d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* (from rate distortion optimization for video compression by sullivan). 658d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 668d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 678d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD16 gu2_qp_lambda[52]= 688d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 698d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 0, 0, 0, 0, 0, 0, 0, 1, 708d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1, 1, 1, 1, 1, 1, 1, 1, 718d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1, 2, 2, 2, 2, 3, 3, 3, 728d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 4, 4, 5, 5, 6, 7, 7, 8, 738d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 9, 10, 12, 13, 15, 17, 19, 21, 748d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 23, 26, 30, 33, 37, 42, 47, 53, 758d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 59, 66, 74, 83, 768d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 778d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 788d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 798d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 808d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief Lamda for varying quantizer scales that would be used to 818d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* compute the RD cost while deciding on the MB modes. 828d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : qp 838d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : lambda 848d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks lambda = pow(2, (qp - 12)/6) 858d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 868d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 878d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gu1_qp0[52]= 888d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 898d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 0, 0, 0, 0, 0, 0, 0, 0, 908d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 0, 0, 0, 0, 1, 1, 1, 1, 918d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 2, 2, 2, 2, 3, 3, 3, 4, 928d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 4, 4, 5, 6, 6, 7, 8, 9, 938d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 10, 11, 13, 14, 16, 18, 20, 23, 948d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 25, 29, 32, 36, 40, 45, 51, 57, 958d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 64, 72, 81, 91, 968d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 978d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 988d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 998d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1008d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief unsigned exp. goulumb codelengths to assign cost to a coefficient of 1018d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* mb types. 1028d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : Integer 1038d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : codelength 1048d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks Refer sec. 9-1 in h264 specification 1058d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1068d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1078d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 u1_uev_codelength[32] = 1088d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1098d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1, 3, 3, 5, 5, 5, 5, 7, 1108d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 7, 7, 7, 7, 7, 7, 7, 9, 1118d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 9, 9, 9, 9, 9, 9, 9, 9, 1128d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 9, 9, 9, 9, 9, 9, 9, 11, 1138d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1148d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1158d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1168d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 1178d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1188d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief Look up table to assign cost to a coefficient of a residual block 1198d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* basing on its surrounding coefficients 1208d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : Numbers of T1's 1218d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : coeff_cost 1228d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks Refer Section 2.3 Elimination of single coefficients in inter 1238d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* macroblocks in document JVT-O079 1248d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1258d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1268d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gu1_coeff_cost[6] = 1278d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1288d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 3, 2, 2, 1, 1, 1 1298d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1308d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1318d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 1328d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1338d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief Indices map to raster scan for luma 4x4 block 1348d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : scan index 1358d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : scan location 1368d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks None 1378d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1388d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1398d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gu1_luma_scan_order[16] = 1408d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1418d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 1428d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1438d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1448d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 1458d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1468d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief Indices map to raster scan for chroma AC block 1478d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : scan index 1488d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : scan location 1498d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks None 1508d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1518d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1528d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gu1_chroma_scan_order[15] = 1538d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1548d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 1558d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1568d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1578d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 1588d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1598d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief Indices map to raster scan for luma 4x4 dc block 1608d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : scan index 1618d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : scan location 1628d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks : None 1638d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1648d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1658d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gu1_luma_scan_order_dc[16] = 1668d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1678d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15 1688d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1698d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1708d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 1718d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1728d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief Indices map to raster scan for chroma 2x2 dc block 1738d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : scan index 1748d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : scan location 1758d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks None 1768d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1778d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1788d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gu1_chroma_scan_order_dc[4] = 1798d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1808d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 0, 1, 2, 3 1818d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1828d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 1838d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S/** 1848d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1858d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @brief choice of motion vectors to be used during mv prediction 1868d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* input : formatted reference idx comparison metric 1878d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* output : mv prediction has to be median or a simple straight forward selec 1888d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* tion from neighbors. 1898d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S* @remarks If only one of the candidate blocks has a reference frame equal to 1908d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S the current block then use the same block as the final predictor. A simple 1918d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S look up table to assist this mv prediction condition 1928d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S****************************************************************************** 1938d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S*/ 1948d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst WORD8 gi1_mv_pred_condition[8] = 1958d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 1968d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S -1, 0, 1, -1, 2, -1, -1, -1 1978d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 1988d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 199134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K 200134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K/******************************************************************************* 201134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Translation of MPEG QP to H264 QP 202134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K ******************************************************************************/ 203134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K/* 204134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Note : RC library models QP and bits assuming the QP to be MPEG2. 205134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Since MPEG qp varies linearly, when the relationship is computed, 206134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * it learns that delta(qp) => delta(bits). Now what we are doing by the 207134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * transation of qp is that 208134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * QPrc = a + b*2^(QPen) 209134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * By not considering the weight matrix in both MPEG and H264 we in effect 210134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * only changing the relation to 211134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * QPrc = c + d*2^(QPen) 212134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * This will only entatil changin the RC model parameters, and this will 213134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * not affect rc relation at all 214134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 215134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 216134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * We have MPEG qp which varies from 0-228. The quantization factor has a linear 217134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * relation ship with the size of quantized values 218134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 219134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * We also have H264 Qp, which varies such that for a change in QP of 6 , we 220134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * double the corresponding scaling factor. Hence the scaling is linear in terms 221134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * of 2^(QPh/6) 222134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 223134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Now we want to have translation between QPm and QPh. Hence we can write 224134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 225134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * QPm = a + b*2^(QPh/6) 226134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 227134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Appling boundary condition that 228461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 1) QPm = 0.625 if QPh = 0 229461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 2) QPm = 224 if QPh = 51, 230134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 231134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * we will have 232461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * a = 0.0063, b = 0.6187 233134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 234134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Hence the relatiohship is 235134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * QPm = a + b*2^(Qph/6) 236134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * QPh = 6*log((Qpm - a)/b) 237134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 238134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 239134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * Unrounded values for gau1_h264_to_mpeg2_qmap[H264_QP_ELEM] = 240134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 241461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 0.625 0.70077 0.78581 0.88127 0.98843 1.10870 242461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 1.24370 1.39523 1.56533 1.75625 1.97055 2.21110 243461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 2.48110 2.78417 3.12435 3.50620 3.93480 4.41589 244461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 4.95590 5.56204 6.24241 7.00609 7.86330 8.82548 245461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 9.90550 11.11778 12.47851 14.00588 15.72030 17.64467 246461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 19.80470 22.22925 24.95072 28.00547 31.43430 35.28304 247461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 39.60310 44.45221 49.89514 56.00463 62.86230 70.55978 248461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 79.19990 88.89811 99.78398 112.00296 125.71830 141.11325 249461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 158.39350 177.78992 199.56167 223.99963 250461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 251134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 252134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 253461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * Unrounded values for gau1_mpeg2_to_h264_qmap[MPEG2_QP_ELEM] 254134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K * 255461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 0 4.1014 10.1288 13.6477 16.1425 18.0768 19.6568 256461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 20.9925 22.1493 23.1696 24.0822 24.9078 25.6614 26.3546 257461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 26.9964 27.5938 28.1527 28.6777 29.1726 29.6408 30.0850 258461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 30.5074 30.9102 31.2951 31.6636 32.0171 32.3567 32.6834 259461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 32.9983 33.3021 33.5957 33.8795 34.1544 34.4208 34.6793 260461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 34.9303 35.1742 35.4114 35.6423 35.8671 36.0863 36.3001 261461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 36.5087 36.7124 36.9115 37.1060 37.2963 37.4825 37.6648 262461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 37.8433 38.0182 38.1896 38.3577 38.5226 38.6844 38.8433 263461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 38.9993 39.1525 39.3031 39.4511 39.5966 39.7397 39.8804 264461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 40.0189 40.1553 40.2895 40.4217 40.5518 40.6801 40.8065 265461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 40.9310 41.0538 41.1749 41.2943 41.4121 41.5283 41.6430 266461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 41.7561 41.8678 41.9781 42.0870 42.1946 42.3008 42.4057 267461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 42.5094 42.6118 42.7131 42.8132 42.9121 43.0099 43.1066 268461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 43.2023 43.2969 43.3905 43.4831 43.5747 43.6653 43.7550 269461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 43.8438 43.9317 44.0187 44.1049 44.1901 44.2746 44.3582 270461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 44.4411 44.5231 44.6044 44.6849 44.7647 44.8438 44.9221 271461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 44.9998 45.0767 45.1530 45.2286 45.3035 45.3779 45.4515 272461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 45.5246 45.5970 45.6689 45.7401 45.8108 45.8809 45.9504 273461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 46.0194 46.0878 46.1557 46.2231 46.2899 46.3563 46.4221 274461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 46.4874 46.5523 46.6166 46.6805 46.7439 46.8069 46.8694 275461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 46.9314 46.9930 47.0542 47.1150 47.1753 47.2352 47.2947 276461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 47.3538 47.4125 47.4708 47.5287 47.5862 47.6433 47.7001 277461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 47.7565 47.8125 47.8682 47.9235 47.9785 48.0331 48.0874 278461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 48.1413 48.1949 48.2482 48.3011 48.3537 48.4060 48.4580 279461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 48.5097 48.5611 48.6122 48.6629 48.7134 48.7636 48.8135 280461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 48.8631 48.9124 48.9615 49.0102 49.0587 49.1069 49.1549 281461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 49.2026 49.2500 49.2972 49.3441 49.3908 49.4372 49.4834 282461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 49.5293 49.5750 49.6204 49.6656 49.7106 49.7553 49.7998 283461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 49.8441 49.8882 49.9320 49.9756 50.0190 50.0622 50.1051 284461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 50.1479 50.1904 50.2327 50.2749 50.3168 50.3585 50.4000 285461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 50.4413 50.4825 50.5234 50.5641 50.6047 50.6450 50.6852 286461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 50.7252 50.7650 50.8046 50.8440 50.8833 50.9224 50.9613 287461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K * 51.0000 288134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K */ 289134291ea0b1b9794b4d7feee2c3ffdbd941c5237Harinarayanan K K 2908d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gau1_h264_to_mpeg2_qmap[H264_QP_ELEM] = 2918d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 292461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 1, 1, 1, 1, 1, 1, 1, 1, 293461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 2, 2, 2, 2, 2, 3, 3, 4, 294461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 4, 4, 5, 6, 6, 7, 8, 9, 295461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 10, 11, 12, 14, 16, 18, 20, 22, 296461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 25, 28, 31, 35, 40, 44, 50, 56, 297461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 63, 71, 79, 89, 100, 112, 126, 141, 298461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 158, 178, 200, 224 2998d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 3008d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 3018d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha Sconst UWORD8 gau1_mpeg2_to_h264_qmap[MPEG2_QP_ELEM] = 3028d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S{ 303461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 0, 4, 10, 14, 16, 18, 20, 21, 304461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 22, 23, 24, 25, 26, 26, 27, 28, 305461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 28, 29, 29, 30, 30, 31, 31, 31, 306461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 32, 32, 32, 33, 33, 33, 34, 34, 307461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 34, 34, 35, 35, 35, 35, 36, 36, 308461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 36, 36, 37, 37, 37, 37, 37, 37, 309461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 38, 38, 38, 38, 38, 39, 39, 39, 310461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 39, 39, 39, 39, 40, 40, 40, 40, 311461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 40, 40, 40, 41, 41, 41, 41, 41, 312461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 41, 41, 41, 42, 42, 42, 42, 42, 313461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 42, 42, 42, 42, 43, 43, 43, 43, 314461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 43, 43, 43, 43, 43, 43, 43, 44, 315461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 44, 44, 44, 44, 44, 44, 44, 44, 316461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 44, 44, 45, 45, 45, 45, 45, 45, 317461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 45, 45, 45, 45, 45, 45, 45, 46, 318461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 46, 46, 46, 46, 46, 46, 46, 46, 319461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 46, 46, 46, 46, 46, 46, 47, 47, 320461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 47, 47, 47, 47, 47, 47, 47, 47, 321461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 47, 47, 47, 47, 47, 47, 48, 48, 322461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 48, 48, 48, 48, 48, 48, 48, 48, 323461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 48, 48, 48, 48, 48, 48, 48, 48, 324461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 49, 49, 49, 49, 49, 49, 49, 49, 325461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 49, 49, 49, 49, 49, 49, 49, 49, 326461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 49, 49, 49, 49, 49, 50, 50, 50, 327461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 50, 50, 50, 50, 50, 50, 50, 50, 328461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 50, 50, 50, 50, 50, 50, 50, 50, 329461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 50, 50, 50, 50, 51, 51, 51, 51, 330461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 51, 51, 51, 51, 51, 51, 51, 51, 331461adb94c9972c032095f16d0d071006a2fed447Harinarayanan K K 51 3328d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S}; 3338d3d303c7942ced6a987a52db8977d768dc3605fHamsalekha S 334