📄 vtcenc.cpp
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/****************************************************************************/
/* MPEG4 Visual Texture Coding (VTC) Mode Software */
/* */
/* This software was jointly developed by the following participants: */
/* */
/* Single-quant, multi-quant and flow control */
/* are provided by Sarnoff Corporation */
/* Iraj Sodagar (iraj@sarnoff.com) */
/* Hung-Ju Lee (hjlee@sarnoff.com) */
/* Paul Hatrack (hatrack@sarnoff.com) */
/* Shipeng Li (shipeng@sarnoff.com) */
/* Bing-Bing Chai (bchai@sarnoff.com) */
/* B.S. Srinivas (bsrinivas@sarnoff.com) */
/* */
/* Bi-level is provided by Texas Instruments */
/* Jie Liang (liang@ti.com) */
/* */
/* Shape Coding is provided by OKI Electric Industry Co., Ltd. */
/* Zhixiong Wu (sgo@hlabs.oki.co.jp) */
/* Yoshihiro Ueda (yueda@hlabs.oki.co.jp) */
/* Toshifumi Kanamaru (kanamaru@hlabs.oki.co.jp) */
/* */
/* OKI, Sharp, Sarnoff, TI and Microsoft contributed to bitstream */
/* exchange and bug fixing. */
/* */
/* */
/* In the course of development of the MPEG-4 standard, this software */
/* module is an implementation of a part of one or more MPEG-4 tools as */
/* specified by the MPEG-4 standard. */
/* */
/* The copyright of this software belongs to ISO/IEC. ISO/IEC gives use */
/* of the MPEG-4 standard free license to use this software module or */
/* modifications thereof for hardware or software products claiming */
/* conformance to the MPEG-4 standard. */
/* */
/* Those intending to use this software module in hardware or software */
/* products are advised that use may infringe existing patents. The */
/* original developers of this software module and their companies, the */
/* subsequent editors and their companies, and ISO/IEC have no liability */
/* and ISO/IEC have no liability for use of this software module or */
/* modification thereof in an implementation. */
/* */
/* Permission is granted to MPEG members to use, copy, modify, */
/* and distribute the software modules ( or portions thereof ) */
/* for standardization activity within ISO/IEC JTC1/SC29/WG11. */
/* */
/* Copyright 1995, 1996, 1997, 1998 ISO/IEC */
/****************************************************************************/
/************************************************************/
/* Sarnoff Very Low Bit Rate Still Image Coder */
/* Copyright 1995, 1996, 1997, 1998 Sarnoff Corporation */
/************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#define DEFINE_GLOBALS
#include "basic.hpp"
#include "dataStruct.hpp"
#include "startcode.hpp"
#include "bitpack.hpp"
#include "msg.hpp"
#include "globals.hpp"
#include "states.hpp" // hjlee 0901
CVTCEncoder::CVTCEncoder()
{
m_cImagePath = new Char[80];
m_cSegImagePath = new Char[80];
m_cOutBitsFile = new Char[80];
mzte_codec.m_cBitFile = new Char[80];
}
CVTCEncoder::~CVTCEncoder()
{
delete m_cImagePath;
delete m_cSegImagePath;
delete m_cOutBitsFile;
delete mzte_codec.m_cBitFile;
}
//CVTCEncoder::CVTCEncoder(
Void CVTCEncoder::init(
Char* cImagePath,
UInt uiAlphaChannel,
Char* cSegImagePath,
UInt uiAlphaTh,
UInt uiChangeCRDisable,
Char* cOutBitsFile,
UInt uiColors,
UInt uiFrmWidth,
UInt uiFrmHeight,
UInt uiWvtType,
UInt uiWvtDownload, // hjlee 0901
UInt uiWvtDecmpLev,
UInt uiWvtUniform, // hjlee 0901
Int* iWvtFilters, // hjlee 0901
UInt uiQuantType,
UInt uiScanDirection,
Bool bStartCodeEnable,
UInt uiTargetSpatialLev,
UInt uiTargetSNRLev,
UInt uiQdcY,
UInt uiQdcUV,
UInt uiSpatialLev ,
UInt defaultSpatialScale, // hjlee 0901
Int *lastWvtDecompInSpaLayer, // hjlee 0901
SNR_PARAM** Qinfo
)
{
// input/output
strcpy(m_cImagePath,cImagePath);
strcpy(m_cSegImagePath,cSegImagePath);
strcpy(m_cOutBitsFile,cOutBitsFile);
strcpy(mzte_codec.m_cBitFile,cOutBitsFile);
mzte_codec.m_iAlphaChannel = (int)uiAlphaChannel;
mzte_codec.m_iAlphaTh = (int)uiAlphaTh;
mzte_codec.m_iChangeCRDisable = (int)uiChangeCRDisable;
mzte_codec.m_iBitDepth = 8;
mzte_codec.m_iColorFormat = 0;
mzte_codec.m_iColors = (int)uiColors;
mzte_codec.m_iWidth = (int)uiFrmWidth;
mzte_codec.m_iHeight = (int)uiFrmHeight;
mzte_codec.m_iWvtType = (int)uiWvtType;
mzte_codec.m_iWvtDecmpLev = (int)uiWvtDecmpLev;
mzte_codec.m_iQuantType = (int)uiQuantType;
mzte_codec.m_iScanDirection = (int)uiScanDirection;
mzte_codec.m_bStartCodeEnable = bStartCodeEnable;
mzte_codec.m_iSpatialLev = (int)uiSpatialLev;
mzte_codec.m_iTargetSpatialLev = (int)uiTargetSpatialLev;
mzte_codec.m_iTargetSNRLev = (int)uiTargetSNRLev;
mzte_codec.m_iWvtDownload = (int)uiWvtDownload; // hjlee 0901
mzte_codec.m_iWvtUniform = (int)uiWvtUniform;// hjlee 0901
mzte_codec.m_WvtFilters = (int *)iWvtFilters; // hjlee 0901
mzte_codec.m_defaultSpatialScale = (int)defaultSpatialScale; // hjlee 0901
if (uiQuantType == 2) {
if (uiSpatialLev != uiWvtDecmpLev) {
/* read in usedefault */
mzte_codec.m_defaultSpatialScale=(int)defaultSpatialScale;
if (defaultSpatialScale==0) {
int spa_lev;
/* read in spatial layer info */
for (spa_lev=0; spa_lev<(int)uiSpatialLev-1; ++spa_lev)
mzte_codec.m_lastWvtDecompInSpaLayer[spa_lev][0]
= lastWvtDecompInSpaLayer[spa_lev];
}
}
}
for (int i=0; i<(int)uiColors; i++)
mzte_codec.m_Qinfo[i] = Qinfo[i];
mzte_codec.m_iQDC[0] = (int)uiQdcY;
mzte_codec.m_iQDC[1] = mzte_codec.m_iQDC[2] = (int)uiQdcUV;
mzte_codec.m_iDCWidth = GetDCWidth();
mzte_codec.m_iDCHeight = GetDCHeight();
mzte_codec.m_iSingleBitFile = 1;
// mzte_codec.m_cBitFile = NULL;
mzte_codec.m_cBitFileAC = NULL;
// check parameter
if (mzte_codec.m_iQuantType==1 && mzte_codec.m_iScanDirection==0)
mzte_codec.m_bStartCodeEnable = 0;
}
/*******************************************************/
/* Flush buffer and close file. Only and must be used */
/* by encoder to close bitstream file */
/*******************************************************/
Void CVTCEncoder::flush_buffer_file()
{
flush_bits();
flush_bytes();
}
Void CVTCEncoder::close_buffer_file(FILE *fp)
{
flush_buffer_file();
fclose(fp);
}
//Void CVTCEncoder::header_Enc(FILTER *wvtfilter) // hjlee 0901
Void CVTCEncoder::header_Enc(FILTER **wvtfilter) // hjlee 0901
{
Int texture_object_id=0;
Int texture_object_layer_shape=mzte_codec.m_iAlphaChannel;
Int wavelet_stuffing = 0x0f;
// Int wavelet_upload;
Int wavelet_uniform; // hjlee 0901
Int i; // hjlee 0901
/*------- Write header info to bitstream file -------*/
emit_bits((UShort)(STILL_TEXTURE_OBJECT_START_CODE>>16), 16);
emit_bits((UShort)STILL_TEXTURE_OBJECT_START_CODE, 16);
emit_bits((UShort)texture_object_id, 16);
emit_bits((UShort)MARKER_BIT, 1);
emit_bits((UShort)(mzte_codec.m_iWvtType==0?0:1), 1); // hjlee 0901
emit_bits((UShort)mzte_codec.m_iWvtDownload, 1); // hjlee 0901
emit_bits((UShort)mzte_codec.m_iWvtDecmpLev, 4); // hjlee 0901
emit_bits((UShort)mzte_codec.m_iScanDirection,1);
emit_bits((UShort)mzte_codec.m_bStartCodeEnable, 1);
emit_bits((UShort)texture_object_layer_shape, 2);
emit_bits((UShort)mzte_codec.m_iQuantType, 2);
/* hjlee 0901 */
if (mzte_codec.m_iQuantType==2) {
Int i;
emit_bits((UShort)mzte_codec.m_iSpatialLev, 4);
/* Calc number decomp layers for all spatial layers */
if (mzte_codec.m_iSpatialLev == 1)
{
mzte_codec.m_lastWvtDecompInSpaLayer[0][0]=mzte_codec.m_iWvtDecmpLev-1;
}
else if (mzte_codec.m_iSpatialLev != mzte_codec.m_iWvtDecmpLev)
{
emit_bits((UShort)mzte_codec.m_defaultSpatialScale, 1);
if (mzte_codec.m_defaultSpatialScale==0)
{
/* For the 1st spatial_scalability_levels-1 layers the luma componant
of lastWvtDecompInSpaLayer should have been filled in from the
parameter file. */
for (i=0; i<mzte_codec.m_iSpatialLev-1; ++i)
emit_bits((UShort)mzte_codec.m_lastWvtDecompInSpaLayer[i][0], 4);
mzte_codec.m_lastWvtDecompInSpaLayer[mzte_codec.m_iSpatialLev-1][0]
=mzte_codec.m_iWvtDecmpLev-1;
}
else
{
Int sp0;
sp0=mzte_codec.m_iWvtDecmpLev-mzte_codec.m_iSpatialLev;
mzte_codec.m_lastWvtDecompInSpaLayer[0][0]=sp0;
for (i=1; i<mzte_codec.m_iSpatialLev; ++i)
mzte_codec.m_lastWvtDecompInSpaLayer[i][0]=sp0+i;
}
}
else
{
for (i=0; i<mzte_codec.m_iSpatialLev; ++i)
mzte_codec.m_lastWvtDecompInSpaLayer[i][0]=i;
}
/* Calculate for chroma (one less than luma) */
for (i=0; i<mzte_codec.m_iSpatialLev; ++i)
mzte_codec.m_lastWvtDecompInSpaLayer[i][1]
=mzte_codec.m_lastWvtDecompInSpaLayer[i][2]
=mzte_codec.m_lastWvtDecompInSpaLayer[i][0]-1;
}
if (mzte_codec.m_iWvtDownload == 1) {
// hjlee 0901
wavelet_uniform = (mzte_codec.m_iWvtUniform!=0)?1:0;
emit_bits((UShort)wavelet_uniform, 1);
if(wavelet_uniform) {
upload_wavelet_filters(wvtfilter[0]);
}
else {
for(i=0;i<mzte_codec.m_iWvtDecmpLev;i++)
upload_wavelet_filters(wvtfilter[i]);
}
}
emit_bits((UShort)wavelet_stuffing, 3);
if (texture_object_layer_shape == 0x00) {
emit_bits((UShort)mzte_codec.m_iRealWidth, 15);
emit_bits((UShort)MARKER_BIT, 1);
emit_bits((UShort)mzte_codec.m_iRealHeight, 15);
emit_bits((UShort)MARKER_BIT, 1);
}
else { /* Arbitrary shape info, SL */
emit_bits((UShort)mzte_codec.m_iOriginX, 15); /*horizontal_ref */
emit_bits((UShort)MARKER_BIT, 1); /* marker_bit */
emit_bits((UShort)mzte_codec.m_iOriginY, 15); /*vertical_ref */
emit_bits((UShort)MARKER_BIT, 1); /* marker_bit */
emit_bits((UShort)mzte_codec.m_iWidth, 15); /* object_width */
emit_bits((UShort)MARKER_BIT, 1); /* marker_bit */
emit_bits((UShort)mzte_codec.m_iHeight, 15); /* object_height */
emit_bits((UShort)MARKER_BIT, 1); /* marker_bit */
noteProgress("Merge Shape Bitstream ....");
// MergeShapeBitstream();
}
}
/**********************************************************/
/* put quant value and maximums on the bitstream */
/* put quant value and maximums on the bitstream */
Void CVTCEncoder::Put_Quant_and_Max(SNR_IMAGE *snr_image, Int spaLayer, Int color)
{
/* put quant value and maximums on the bitstream */
put_param(snr_image->quant, 7);
// emit_bits((UShort)MARKER_BIT, 1); // 1124
{
Int l;
for (l=0; l<=mzte_codec.m_lastWvtDecompInSpaLayer[spaLayer][color];++l)
{
emit_bits((UShort)snr_image->wvtDecompNumBitPlanes[l],5);
if (((l+1) % 4) == 0)
emit_bits((UShort)MARKER_BIT, 1);
}
}
}
// hjlee 0901
Void CVTCEncoder::Put_Quant_and_Max_SQBB(SNR_IMAGE *snr_image, Int spaLayer,
Int color)
{
/* put quant value and maximums on the bitstream */
if ((color==0 && spaLayer==0) || (color>0 && spaLayer==1))
put_param(snr_image->quant, 7);
if (color==0)
emit_bits((UShort)snr_image->wvtDecompNumBitPlanes[spaLayer],5);
else if (spaLayer)
emit_bits((UShort)snr_image->wvtDecompNumBitPlanes[spaLayer-1],5);
}
/**********************************************************/
Void CVTCEncoder::textureLayerDC_Enc()
{
Int col, err;
noteProgress("Encoding DC coefficients....");
for (col=0; col<mzte_codec.m_iColors; col++)
{
/* Set global color variable */
mzte_codec.m_iCurColor=col;
/* initialize DC coefficient info */
if ((err=ztqInitDC(0, col)))
errorHandler("ztqInitDC");
/* quantize DC coefficients */
if ((err=encQuantizeDC(col)))
errorHandler("encQuantizeDC");
/* losslessly encoding DC coefficients */
wavelet_dc_encode(col);
// writeStats();
}
noteProgress("Completed encoding DC coefficients.");
}
/**********************************************************/
Void CVTCEncoder::TextureSpatialLayerSQNSC_enc(Int spa_lev)
{
Int col;
SNR_IMAGE *snr_image; // hjlee 0901
/* hjlee 0901 */
/* hjlee 0827 */
for (col=0; col<mzte_codec.m_iColors; col++) {
snr_image = &(mzte_codec.m_SPlayer[col].SNRlayer.snr_image);
Put_Quant_and_Max_SQBB(snr_image, spa_lev, col);
}
for (col=0; col<mzte_codec.m_iColors; col++) {
noteProgress("Single-Quant Mode (Band by Band) - Spatial %d, SNR 0, "\
"Color %d",spa_lev,col);
mzte_codec.m_iCurColor = col;
if (spa_lev !=0 || col ==0) {
wavelet_higher_bands_encode_SQ_band(col);
}
}
}
Void CVTCEncoder::TextureSpatialLayerSQ_enc(Int spa_lev, FILE *bitfile)
{
Char fname[100]; // hjlee
/*------- AC: Open and initialize bitstream file -------*/
if (mzte_codec.m_iSingleBitFile==0)
{
sprintf(fname,mzte_codec.m_cBitFileAC,spa_lev,0);
if ((bitfile=fopen(fname,"wb"))==NULL)
errorHandler("Can't open file '%s' for writing.",fname);
}
/* initialize the buffer */
init_bit_packing_fp(bitfile,1);
/*------- AC: Write header info to bitstream file -------*/
emit_bits(TEXTURE_SPATIAL_LAYER_START_CODE >> 16, 16);
emit_bits(TEXTURE_SPATIAL_LAYER_START_CODE, 16);
emit_bits(spa_lev, 5);
TextureSpatialLayerSQNSC_enc(spa_lev);
/*------- AC: Close bitstream file -------*/
if (mzte_codec.m_iSingleBitFile)
flush_buffer_file();
else
close_buffer_file(bitfile);
}
Void CVTCEncoder::textureLayerSQ_Enc(FILE *bitfile)
{
Int col, err, spa_lev;
SNR_IMAGE *snr_image;
noteProgress("Encoding AC coefficients - Single-Quant Mode....");
/*------- AC: Set spatial and SNR levels to zero -------*/
mzte_codec.m_iCurSpatialLev = 0;
mzte_codec.m_iCurSNRLev = 0;
// mzte_codec.m_iSpatialLev=1; // hjlee 0901
setSpatialLayerDimsSQ(0); // hjlee 0901
for (col=0; col<mzte_codec.m_iColors; col++)
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