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source: 3DVCSoftware/branches/0.3-nokia/source/Lib/TLibEncoder/TEncGOP.cpp @ 36

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Last change on this file since 36 was 5, checked in by hhi, 13 years ago
Clean version with cfg-files
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File size: 36.1 KB

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1	/* The copyright in this software is being made available under the BSD
2	* License, included below. This software may be subject to other third party
3	* and contributor rights, including patent rights, and no such rights are
4	* granted under this license.
5	*
6	* Copyright (c) 2010-2011, ISO/IEC
7	* All rights reserved.
8	*
9	* Redistribution and use in source and binary forms, with or without
10	* modification, are permitted provided that the following conditions are met:
11	*
12	* * Redistributions of source code must retain the above copyright notice,
13	* this list of conditions and the following disclaimer.
14	* * Redistributions in binary form must reproduce the above copyright notice,
15	* this list of conditions and the following disclaimer in the documentation
16	* and/or other materials provided with the distribution.
17	* * Neither the name of the ISO/IEC nor the names of its contributors may
18	* be used to endorse or promote products derived from this software without
19	* specific prior written permission.
20	*
21	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22	* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24	* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
25	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31	* THE POSSIBILITY OF SUCH DAMAGE.
32	*/
33
34
35
36	/** \file TEncPic.cpp
37	\brief GOP encoder class
38	*/
39
40	#include "TEncTop.h"
41	#include "TEncGOP.h"
42	#include "TEncAnalyze.h"
43	#include "../libmd5/MD5.h"
44	#include "../TLibCommon/SEI.h"
45
46	#include <time.h>
47
48	#include "../../App/TAppEncoder/TAppEncTop.h"
49
50	// ====================================================================================================================
51	// Constructor / destructor / initialization / destroy
52	// ====================================================================================================================
53
54	TEncPic::TEncPic()
55	{
56	m_pcCfg = NULL;
57	m_pcSliceEncoder = NULL;
58	m_pcListPic = NULL;
59
60	m_pcEntropyCoder = NULL;
61	m_pcCavlcCoder = NULL;
62	m_pcSbacCoder = NULL;
63	m_pcBinCABAC = NULL;
64	#if DEPTH_MAP_GENERATION
65	m_pcDepthMapGenerator = NULL;
66	#endif
67	#if HHI_INTER_VIEW_RESIDUAL_PRED
68	m_pcResidualGenerator = NULL;
69	#endif
70
71	#if DCM_DECODING_REFRESH
72	m_bRefreshPending = 0;
73	m_uiPOCCDR = 0;
74	#endif
75
76	return;
77	}
78
79	TEncPic::~TEncPic()
80	{
81	}
82
83	/** Create list to contain pointers to LCU start addresses of slice.
84	* \param iWidth, iHeight are picture width, height. iMaxCUWidth, iMaxCUHeight are LCU width, height.
85	*/
86	Void TEncPic::create( Int iWidth, Int iHeight, UInt iMaxCUWidth, UInt iMaxCUHeight )
87	{
88	UInt uiWidthInCU = ( iWidth %iMaxCUWidth ) ? iWidth /iMaxCUWidth + 1 : iWidth /iMaxCUWidth;
89	UInt uiHeightInCU = ( iHeight%iMaxCUHeight ) ? iHeight/iMaxCUHeight + 1 : iHeight/iMaxCUHeight;
90	UInt uiNumCUsInFrame = uiWidthInCU * uiHeightInCU;
91	m_uiStoredStartCUAddrForEncodingSlice = new UInt [uiNumCUsInFrame+1];
92	m_uiStoredStartCUAddrForEncodingEntropySlice = new UInt [uiNumCUsInFrame+1];
93	}
94
95	Void TEncPic::destroy()
96	{
97	delete [] m_uiStoredStartCUAddrForEncodingSlice; m_uiStoredStartCUAddrForEncodingSlice = NULL;
98	delete [] m_uiStoredStartCUAddrForEncodingEntropySlice; m_uiStoredStartCUAddrForEncodingEntropySlice = NULL;
99	}
100
101	Void TEncPic::init ( TEncTop* pcTEncTop )
102	{
103	m_pcEncTop = pcTEncTop;
104	m_pcCfg = pcTEncTop;
105	m_pcSliceEncoder = pcTEncTop->getSliceEncoder();
106	m_pcListPic = pcTEncTop->getListPic();
107
108	m_pcEntropyCoder = pcTEncTop->getEntropyCoder();
109	m_pcCavlcCoder = pcTEncTop->getCavlcCoder();
110	m_pcSbacCoder = pcTEncTop->getSbacCoder();
111	m_pcBinCABAC = pcTEncTop->getBinCABAC();
112	m_pcLoopFilter = pcTEncTop->getLoopFilter();
113	m_pcBitCounter = pcTEncTop->getBitCounter();
114	#if DEPTH_MAP_GENERATION
115	m_pcDepthMapGenerator = pcTEncTop->getDepthMapGenerator();
116	#endif
117	#if HHI_INTER_VIEW_RESIDUAL_PRED
118	m_pcResidualGenerator = pcTEncTop->getResidualGenerator();
119	#endif
120
121	// Adaptive Loop filter
122	m_pcAdaptiveLoopFilter = pcTEncTop->getAdaptiveLoopFilter();
123	//--Adaptive Loop filter
124	#if MTK_SAO
125	m_pcSAO = pcTEncTop->getSAO();
126	#endif
127	m_pcRdCost = pcTEncTop->getRdCost();
128
129	}
130
131	// ====================================================================================================================
132	// Public member functions
133	// ====================================================================================================================
134
135	Void TEncPic::compressPic( TComBitstream* pcBitstreamOut, TComPicYuv cPicOrg, TComPic* pcPic, TComPicYuv* pcPicYuvRecOut,
136	TComPic* pcOrgRefList[2][MAX_REF_PIC_NUM], Bool& rbSeqFirst, TComList<TComPic*>& rcListPic )
137	{
138	TComSlice* pcSlice;
139
140	//-- For time output for each slice
141	long iBeforeTime = clock();
142
143	// Bitstream reset
144	pcBitstreamOut->resetBits();
145	pcBitstreamOut->rewindStreamPacket();
146
147	// Slice data initialization
148	pcPic->clearSliceBuffer();
149	assert(pcPic->getNumAllocatedSlice() == 1);
150	m_pcSliceEncoder->setSliceIdx(0);
151	pcPic->setCurrSliceIdx(0);
152	m_pcSliceEncoder->initEncSlice ( pcPic, pcSlice );
153	pcSlice->setSliceIdx(0);
154
155	// Set SPS
156	pcSlice->setSPS( m_pcEncTop->getSPS() );
157	pcSlice->setPPS( m_pcEncTop->getPPS() );
158	pcSlice->setPPSId( pcSlice->getPPS()->getPPSId() );
159
160	// set mutliview parameters
161	pcSlice->initMultiviewSlice( pcPic->getCodedScale(), pcPic->getCodedOffset() );
162
163	#if DCM_DECODING_REFRESH
164	// Set the nal unit type
165	if( pcSlice->getPOC() == 0 )
166	pcSlice->setNalUnitType( NAL_UNIT_CODED_SLICE_IDR );
167	else
168	pcSlice->setNalUnitType( NAL_UNIT_CODED_SLICE );
169
170	//pcSlice->setNalUnitType(getNalUnitType(uiPOCCurr));
171	// Do decoding refresh marking if any
172	pcSlice->decodingRefreshMarking(m_uiPOCCDR, m_bRefreshPending, rcListPic);
173	#endif
174
175	// GT FIX
176	std::vector<TComPic*> apcSpatRefPics = m_pcEncTop->getEncTop()->getSpatialRefPics( pcPic->getViewIdx(), pcSlice->getPOC(), m_pcEncTop->isDepthCoder() );
177	TComPic * const pcTexturePic = m_pcEncTop->isDepthCoder() ? m_pcEncTop->getEncTop()->getPicFromView( pcPic->getViewIdx(), pcSlice->getPOC(), false ) : NULL;
178	assert( ! m_pcEncTop->isDepthCoder() \|\| pcTexturePic != NULL );
179	pcSlice->setTexturePic( pcTexturePic );
180
181	pcSlice->setRefPicListFromGOPSTring( rcListPic, apcSpatRefPics );
182
183	#if HHI_VSO
184	m_pcEncTop->getEncTop()->setMVDPic(pcPic->getViewIdx(), pcSlice->getPOC(), pcPic->getMVDReferenceInfo() );
185
186
187	Bool bUseVSO = m_pcEncTop->getUseVSO();
188	m_pcRdCost->setUseVSO( bUseVSO );
189
190	if ( bUseVSO )
191	{
192	Int iVSOMode = m_pcEncTop->getVSOMode();
193	m_pcRdCost->setVSOMode( iVSOMode );
194	#if HHI_VSO_DIST_INT
195	m_pcRdCost->setAllowNegDist( m_pcEncTop->getAllowNegDist() );
196	#endif
197
198	if ( iVSOMode == 4 )
199	{
200	m_pcEncTop->getEncTop()->setupRenModel( pcSlice->getPOC(), pcPic->getViewIdx(), m_pcEncTop->isDepthCoder() ? 1 : 0 );
201	}
202	else
203	{
204	m_pcRdCost->setRefDataFromMVDInfo( pcPic->getMVDReferenceInfo() );
205	}
206	}
207	#endif
208
209	#if HHI_INTERVIEW_SKIP
210	if ( m_pcEncTop->getInterViewSkip() )
211	{
212	m_pcEncTop->getEncTop()->getUsedPelsMap( pcPic->getViewIdx(), pcPic->getPOC(), pcPic->getUsedPelsMap() );
213	}
214	#endif
215
216	pcSlice->setNoBackPredFlag( false );
217	#if DCM_COMB_LIST
218	if ( pcSlice->getSliceType() == B_SLICE && !pcSlice->getRefPicListCombinationFlag())
219	#else
220	if ( pcSlice->getSliceType() == B_SLICE )
221	#endif
222	{
223	if ( pcSlice->getNumRefIdx(RefPicList( 0 ) ) == pcSlice->getNumRefIdx(RefPicList( 1 ) ) )
224	{
225	pcSlice->setNoBackPredFlag( true );
226	int i;
227	for ( i=0; i < pcSlice->getNumRefIdx(RefPicList( 1 ) ); i++ )
228	{
229	if ( pcSlice->getRefPOC(RefPicList(1), i) != pcSlice->getRefPOC(RefPicList(0), i) )
230	{
231	pcSlice->setNoBackPredFlag( false );
232	break;
233	}
234	}
235	}
236	}
237
238	#if DCM_COMB_LIST
239	if(pcSlice->getNoBackPredFlag())
240	{
241	pcSlice->setNumRefIdx(REF_PIC_LIST_C, -1);
242	}
243	pcSlice->generateCombinedList();
244	#endif
245
246	/////////////////////////////////////////////////////////////////////////////////////////////////// Compress a slice
247	// Slice compression
248	if (m_pcCfg->getUseASR())
249	{
250	m_pcSliceEncoder->setSearchRange(pcSlice);
251	}
252	#ifdef ROUNDING_CONTROL_BIPRED
253	Bool b = true;
254	if (m_pcCfg->getUseRoundingControlBipred())
255	{
256	if (m_pcCfg->getCodedPictureBufferSize()==1)
257	b = ((pcSlice->getPOC()&1)==0);
258	else
259	b = (pcSlice->isReferenced() == 0);
260	}
261
262	#if HIGH_ACCURACY_BI
263	pcSlice->setRounding(false);
264	#else
265	pcSlice->setRounding(b);
266	#endif
267	#endif
268
269	UInt uiStartCUAddrSliceIdx = 0; // used to index "m_uiStoredStartCUAddrForEncodingSlice" containing locations of slice boundaries
270	UInt uiStartCUAddrSlice = 0; // used to keep track of current slice's starting CU addr.
271	pcSlice->setSliceCurStartCUAddr( uiStartCUAddrSlice ); // Setting "start CU addr" for current slice
272	memset(m_uiStoredStartCUAddrForEncodingSlice, 0, sizeof(UInt) * (pcPic->getPicSym()->getNumberOfCUsInFrame()+1));
273
274	UInt uiStartCUAddrEntropySliceIdx = 0; // used to index "m_uiStoredStartCUAddrForEntropyEncodingSlice" containing locations of slice boundaries
275	UInt uiStartCUAddrEntropySlice = 0; // used to keep track of current Entropy slice's starting CU addr.
276	pcSlice->setEntropySliceCurStartCUAddr( uiStartCUAddrEntropySlice ); // Setting "start CU addr" for current Entropy slice
277	memset(m_uiStoredStartCUAddrForEncodingEntropySlice, 0, sizeof(UInt) * (pcPic->getPicSym()->getNumberOfCUsInFrame()+1));
278
279	UInt uiNextCUAddr = 0;
280	m_uiStoredStartCUAddrForEncodingSlice[uiStartCUAddrSliceIdx++] = uiNextCUAddr;
281	m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx++] = uiNextCUAddr;
282
283	#if DEPTH_MAP_GENERATION
284	// init view component and predict virtual depth map
285	m_pcDepthMapGenerator->initViewComponent( pcPic );
286	m_pcDepthMapGenerator->predictDepthMap ( pcPic );
287	#if HHI_INTER_VIEW_MOTION_PRED
288	m_pcDepthMapGenerator->covertOrgDepthMap( pcPic );
289	#endif
290	#if HHI_INTER_VIEW_RESIDUAL_PRED
291	m_pcResidualGenerator->initViewComponent( pcPic );
292	#endif
293	#endif
294
295	while(uiNextCUAddr<pcPic->getPicSym()->getNumberOfCUsInFrame()) // determine slice boundaries
296	{
297	pcSlice->setNextSlice ( false );
298	pcSlice->setNextEntropySlice( false );
299	assert(pcPic->getNumAllocatedSlice() == uiStartCUAddrSliceIdx);
300	m_pcSliceEncoder->precompressSlice( pcPic );
301	m_pcSliceEncoder->compressSlice ( pcPic );
302
303	Bool bNoBinBitConstraintViolated = (!pcSlice->isNextSlice() && !pcSlice->isNextEntropySlice());
304	if (pcSlice->isNextSlice() \|\| (bNoBinBitConstraintViolated && m_pcCfg->getSliceMode()==AD_HOC_SLICES_FIXED_NUMBER_OF_LCU_IN_SLICE))
305	{
306	uiStartCUAddrSlice = pcSlice->getSliceCurEndCUAddr();
307	// Reconstruction slice
308	m_uiStoredStartCUAddrForEncodingSlice[uiStartCUAddrSliceIdx++] = uiStartCUAddrSlice;
309	// Entropy slice
310	if (uiStartCUAddrEntropySliceIdx>0 && m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx-1] != uiStartCUAddrSlice)
311	{
312	m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx++] = uiStartCUAddrSlice;
313	}
314
315	if (uiStartCUAddrSlice < pcPic->getPicSym()->getNumberOfCUsInFrame())
316	{
317	pcPic->allocateNewSlice();
318	pcPic->setCurrSliceIdx ( uiStartCUAddrSliceIdx-1 );
319	m_pcSliceEncoder->setSliceIdx ( uiStartCUAddrSliceIdx-1 );
320	pcSlice = pcPic->getSlice ( uiStartCUAddrSliceIdx-1 );
321	pcSlice->copySliceInfo ( pcPic->getSlice(0) );
322	pcSlice->setSliceIdx ( uiStartCUAddrSliceIdx-1 );
323	pcSlice->setSliceCurStartCUAddr ( uiStartCUAddrSlice );
324	pcSlice->setEntropySliceCurStartCUAddr ( uiStartCUAddrSlice );
325	pcSlice->setSliceBits(0);
326	}
327	}
328	else if (pcSlice->isNextEntropySlice() \|\| (bNoBinBitConstraintViolated && m_pcCfg->getEntropySliceMode()==SHARP_FIXED_NUMBER_OF_LCU_IN_ENTROPY_SLICE))
329	{
330	uiStartCUAddrEntropySlice = pcSlice->getEntropySliceCurEndCUAddr();
331	m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx++] = uiStartCUAddrEntropySlice;
332	pcSlice->setEntropySliceCurStartCUAddr( uiStartCUAddrEntropySlice );
333	}
334	else
335	{
336	uiStartCUAddrSlice = pcSlice->getSliceCurEndCUAddr();
337	uiStartCUAddrEntropySlice = pcSlice->getEntropySliceCurEndCUAddr();
338	}
339
340	uiNextCUAddr = (uiStartCUAddrSlice > uiStartCUAddrEntropySlice) ? uiStartCUAddrSlice : uiStartCUAddrEntropySlice;
341	}
342	m_uiStoredStartCUAddrForEncodingSlice[uiStartCUAddrSliceIdx++] = pcSlice->getSliceCurEndCUAddr();
343	m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx++] = pcSlice->getSliceCurEndCUAddr();
344
345	pcSlice = pcPic->getSlice(0);
346	#if MTK_SAO // PRE_DF
347	SAOParam cSaoParam;
348	#endif
349
350	#if HHI_INTER_VIEW_RESIDUAL_PRED
351	// set residual picture
352	m_pcResidualGenerator->setRecResidualPic( pcPic );
353	#endif
354	#if DEPTH_MAP_GENERATION
355	// update virtual depth map
356	m_pcDepthMapGenerator->updateDepthMap( pcPic );
357	#endif
358
359	//-- Loop filter
360	m_pcLoopFilter->setCfg(pcSlice->getLoopFilterDisable(), m_pcCfg->getLoopFilterAlphaC0Offget(), m_pcCfg->getLoopFilterBetaOffget());
361	m_pcLoopFilter->loopFilterPic( pcPic );
362
363	#if MTK_NONCROSS_INLOOP_FILTER
364	pcSlice = pcPic->getSlice(0);
365
366	if(pcSlice->getSPS()->getUseALF())
367	{
368	if(pcSlice->getSPS()->getLFCrossSliceBoundaryFlag())
369	{
370	m_pcAdaptiveLoopFilter->setUseNonCrossAlf(false);
371	}
372	else
373	{
374	UInt uiNumSlices = uiStartCUAddrSliceIdx-1;
375	m_pcAdaptiveLoopFilter->setUseNonCrossAlf( (uiNumSlices > 1) );
376	if(m_pcAdaptiveLoopFilter->getUseNonCrossAlf())
377	{
378	m_pcAdaptiveLoopFilter->setNumSlicesInPic( uiNumSlices );
379	m_pcAdaptiveLoopFilter->createSlice();
380
381	//set the startLCU and endLCU addr. to ALF slices
382	for(UInt i=0; i< uiNumSlices ; i++)
383	{
384	(*m_pcAdaptiveLoopFilter)[i].create(pcPic, i,
385	m_uiStoredStartCUAddrForEncodingSlice[i],
386	m_uiStoredStartCUAddrForEncodingSlice[i+1]-1
387	);
388
389	}
390	}
391	}
392	}
393	#endif
394	/////////////////////////////////////////////////////////////////////////////////////////////////// File writing
395	// Set entropy coder
396	m_pcEntropyCoder->setEntropyCoder ( m_pcCavlcCoder, pcSlice );
397
398	/* write various header sets.
399	* The header sets are written into a separate bitstream buffer to
400	* allow SEI messages that are calculated after the picture has been
401	* encoded to be sent before the picture.
402	*/
403	TComBitstream bs_SPS_PPS_SEI;
404	bs_SPS_PPS_SEI.create(512); /* TODO: this should dynamically resize */
405	if ( rbSeqFirst )
406	{
407	m_pcEntropyCoder->setBitstream(&bs_SPS_PPS_SEI);
408
409	m_pcEntropyCoder->encodeSPS( pcSlice->getSPS() );
410	bs_SPS_PPS_SEI.write( 1, 1 );
411	bs_SPS_PPS_SEI.writeAlignZero();
412	// generate start code
413	bs_SPS_PPS_SEI.write( 1, 32);
414
415	m_pcEntropyCoder->encodePPS( pcSlice->getPPS() );
416	bs_SPS_PPS_SEI.write( 1, 1 );
417	bs_SPS_PPS_SEI.writeAlignZero();
418	// generate start code
419	bs_SPS_PPS_SEI.write( 1, 32);
420	rbSeqFirst = false;
421	}
422
423	/* use the main bitstream buffer for storing the marshalled picture */
424	m_pcEntropyCoder->setBitstream(pcBitstreamOut);
425
426	uiStartCUAddrSliceIdx = 0;
427	uiStartCUAddrSlice = 0;
428	pcBitstreamOut->allocateMemoryForSliceLocations( pcPic->getPicSym()->getNumberOfCUsInFrame() ); // Assuming number of slices <= number of LCU. Needs to be changed for sub-LCU slice coding.
429	pcBitstreamOut->setSliceCount( 0 ); // intialize number of slices to zero, used while converting RBSP to NALU
430
431	uiStartCUAddrEntropySliceIdx = 0;
432	uiStartCUAddrEntropySlice = 0;
433	uiNextCUAddr = 0;
434	pcSlice = pcPic->getSlice(uiStartCUAddrSliceIdx);
435	while (uiNextCUAddr < pcPic->getPicSym()->getNumberOfCUsInFrame()) // Iterate over all slices
436	{
437	pcSlice->setNextSlice ( false );
438	pcSlice->setNextEntropySlice( false );
439	if (uiNextCUAddr == m_uiStoredStartCUAddrForEncodingSlice[uiStartCUAddrSliceIdx])
440	{
441	pcSlice = pcPic->getSlice(uiStartCUAddrSliceIdx);
442	pcPic->setCurrSliceIdx(uiStartCUAddrSliceIdx);
443	m_pcSliceEncoder->setSliceIdx(uiStartCUAddrSliceIdx);
444	assert(uiStartCUAddrSliceIdx == pcSlice->getSliceIdx());
445	// Reconstruction slice
446	pcSlice->setSliceCurStartCUAddr( uiNextCUAddr ); // to be used in encodeSlice() + context restriction
447	pcSlice->setSliceCurEndCUAddr ( m_uiStoredStartCUAddrForEncodingSlice[uiStartCUAddrSliceIdx+1 ] );
448	// Entropy slice
449	pcSlice->setEntropySliceCurStartCUAddr( uiNextCUAddr ); // to be used in encodeSlice() + context restriction
450	pcSlice->setEntropySliceCurEndCUAddr ( m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx+1 ] );
451
452	pcSlice->setNextSlice ( true );
453
454	uiStartCUAddrSliceIdx++;
455	uiStartCUAddrEntropySliceIdx++;
456	}
457	else if (uiNextCUAddr == m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx])
458	{
459	// Entropy slice
460	pcSlice->setEntropySliceCurStartCUAddr( uiNextCUAddr ); // to be used in encodeSlice() + context restriction
461	pcSlice->setEntropySliceCurEndCUAddr ( m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx+1 ] );
462
463	pcSlice->setNextEntropySlice( true );
464
465	uiStartCUAddrEntropySliceIdx++;
466	}
467
468	// Get ready for writing slice header (other than the first one in the picture)
469	if (uiNextCUAddr!=0)
470	{
471	m_pcEntropyCoder->setEntropyCoder ( m_pcCavlcCoder, pcSlice );
472	m_pcEntropyCoder->setBitstream ( pcBitstreamOut );
473	m_pcEntropyCoder->resetEntropy ();
474	}
475
476	// write SliceHeader
477	m_pcEntropyCoder->encodeSliceHeader ( pcSlice );
478
479	// is it needed?
480	if ( pcSlice->getSymbolMode() )
481	{
482	m_pcSbacCoder->init( (TEncBinIf*)m_pcBinCABAC );
483	m_pcEntropyCoder->setEntropyCoder ( m_pcSbacCoder, pcSlice );
484	m_pcEntropyCoder->resetEntropy ();
485	}
486
487	if (uiNextCUAddr==0) // Compute ALF params and write only for first slice header
488	{
489	// adaptive loop filter
490	#if MTK_SAO
491	if ( pcSlice->getSPS()->getUseALF() \|\| (pcSlice->getSPS()->getUseSAO()) )
492	#else
493	if ( pcSlice->getSPS()->getUseALF())
494	#endif
495	{
496	ALFParam cAlfParam;
497	#if TSB_ALF_HEADER
498	m_pcAdaptiveLoopFilter->setNumCUsInFrame(pcPic);
499	#endif
500	m_pcAdaptiveLoopFilter->allocALFParam(&cAlfParam);
501
502	// set entropy coder for RD
503	if ( pcSlice->getSymbolMode() )
504	{
505	m_pcEntropyCoder->setEntropyCoder ( m_pcEncTop->getRDGoOnSbacCoder(), pcSlice );
506	}
507	else
508	{
509	m_pcEntropyCoder->setEntropyCoder ( m_pcCavlcCoder, pcSlice );
510	}
511	m_pcEntropyCoder->resetEntropy ();
512	m_pcEntropyCoder->setBitstream ( m_pcBitCounter );
513
514	m_pcAdaptiveLoopFilter->startALFEnc(pcPic, m_pcEntropyCoder );
515	#if MTK_SAO // PostDF
516	{
517	if (pcSlice->getSPS()->getUseSAO())
518	{
519	m_pcSAO->startSaoEnc(pcPic, m_pcEntropyCoder, m_pcEncTop->getRDSbacCoder(), m_pcCfg->getUseSBACRD() ? m_pcEncTop->getRDGoOnSbacCoder() : NULL);
520	m_pcSAO->SAOProcess(pcPic->getSlice(0)->getLambda());
521	m_pcSAO->copyQaoData(&cSaoParam);
522	m_pcSAO->endSaoEnc();
523	}
524	}
525	#endif
526	UInt uiMaxAlfCtrlDepth;
527
528	UInt64 uiDist, uiBits;
529	#if MTK_SAO
530	if ( pcSlice->getSPS()->getUseALF())
531	#endif
532	m_pcAdaptiveLoopFilter->ALFProcess( &cAlfParam, pcPic->getSlice(0)->getLambda(), uiDist, uiBits, uiMaxAlfCtrlDepth );
533	#if MTK_SAO
534	else
535	cAlfParam.cu_control_flag = 0;
536	#endif
537	m_pcAdaptiveLoopFilter->endALFEnc();
538
539	// set entropy coder for writing
540	m_pcSbacCoder->init( (TEncBinIf*)m_pcBinCABAC );
541	if ( pcSlice->getSymbolMode() )
542	{
543	m_pcEntropyCoder->setEntropyCoder ( m_pcSbacCoder, pcSlice );
544	}
545	else
546	{
547	m_pcEntropyCoder->setEntropyCoder ( m_pcCavlcCoder, pcSlice );
548	}
549	m_pcEntropyCoder->resetEntropy ();
550	m_pcEntropyCoder->setBitstream ( pcBitstreamOut );
551	if (cAlfParam.cu_control_flag)
552	{
553	m_pcEntropyCoder->setAlfCtrl( true );
554	m_pcEntropyCoder->setMaxAlfCtrlDepth(uiMaxAlfCtrlDepth);
555	if (pcSlice->getSymbolMode() == 0)
556	{
557	m_pcCavlcCoder->setAlfCtrl(true);
558	m_pcCavlcCoder->setMaxAlfCtrlDepth(uiMaxAlfCtrlDepth); //D0201
559	}
560	}
561	else
562	{
563	m_pcEntropyCoder->setAlfCtrl(false);
564	}
565	#if MTK_SAO
566	if (pcSlice->getSPS()->getUseSAO())
567	{
568	m_pcEntropyCoder->encodeSaoParam(&cSaoParam);
569	}
570	if (pcSlice->getSPS()->getUseALF())
571	#endif
572	m_pcEntropyCoder->encodeAlfParam(&cAlfParam);
573
574	#if TSB_ALF_HEADER
575	if(cAlfParam.cu_control_flag)
576	{
577	m_pcEntropyCoder->encodeAlfCtrlParam(&cAlfParam);
578	}
579	#endif
580	m_pcAdaptiveLoopFilter->freeALFParam(&cAlfParam);
581	}
582	}
583
584	// File writing
585	m_pcSliceEncoder->encodeSlice( pcPic, pcBitstreamOut );
586
587	// End of bitstream & byte align
588	pcBitstreamOut->write( 1, 1 );
589	pcBitstreamOut->writeAlignZero();
590
591	UInt uiBoundingAddrSlice, uiBoundingAddrEntropySlice;
592	uiBoundingAddrSlice = m_uiStoredStartCUAddrForEncodingSlice[uiStartCUAddrSliceIdx];
593	uiBoundingAddrEntropySlice = m_uiStoredStartCUAddrForEncodingEntropySlice[uiStartCUAddrEntropySliceIdx];
594	uiNextCUAddr = min(uiBoundingAddrSlice, uiBoundingAddrEntropySlice);
595	if (uiNextCUAddr < pcPic->getPicSym()->getNumberOfCUsInFrame()) // if more slices to be encoded insert start code
596	{
597	UInt uiSliceCount = pcBitstreamOut->getSliceCount();
598	pcBitstreamOut->setSliceByteLocation( uiSliceCount, (pcBitstreamOut->getNumberOfWrittenBits()>>3) );
599	pcBitstreamOut->setSliceCount( uiSliceCount+1 );
600	pcBitstreamOut->write( 1, 32);
601	}
602	} // end iteration over slices
603
604
605	#if MTK_NONCROSS_INLOOP_FILTER
606	if(pcSlice->getSPS()->getUseALF())
607	{
608	if(m_pcAdaptiveLoopFilter->getUseNonCrossAlf())
609	m_pcAdaptiveLoopFilter->destroySlice();
610	}
611	#endif
612
613
614	pcBitstreamOut->flushBuffer();
615	pcBitstreamOut->convertRBSPToPayload(0);
616
617	/*#if AMVP_BUFFERCOMPRESS
618	pcPic->compressMotion(); // moved to end of access unit
619	#endif */
620	pcBitstreamOut->freeMemoryAllocatedForSliceLocations();
621
622	//-- For time output for each slice
623	Double dEncTime = (double)(clock()-iBeforeTime) / CLOCKS_PER_SEC;
624
625	xCalculateAddPSNR( pcPic, pcPic->getPicYuvRec(), pcBitstreamOut->getNumberOfWrittenBits(), dEncTime );
626
627	#if FIXED_ROUNDING_FRAME_MEMORY
628	pcPic->getPicYuvRec()->xFixedRoundingPic();
629	#endif
630
631	if (m_pcCfg->getPictureDigestEnabled()) {
632	/* calculate MD5sum for entire reconstructed picture */
633	SEIpictureDigest sei_recon_picture_digest;
634	sei_recon_picture_digest.method = SEIpictureDigest::MD5;
635	calcMD5(*pcPic->getPicYuvRec(), sei_recon_picture_digest.digest);
636	printf("[MD5:%s] ", digestToString(sei_recon_picture_digest.digest));
637
638	TComBitstream seiBs;
639	seiBs.create(1024);
640	/* write the SEI messages */
641	m_pcEntropyCoder->setEntropyCoder(m_pcCavlcCoder, pcSlice);
642	m_pcEntropyCoder->setBitstream(&seiBs);
643	m_pcEntropyCoder->encodeSEI(sei_recon_picture_digest);
644	/* and trailing bits */
645	seiBs.write(1, 1);
646	seiBs.writeAlignZero();
647	seiBs.flushBuffer();
648	seiBs.convertRBSPToPayload(0);
649
650	/* append the SEI message after any SPS/PPS */
651	/* the following loop is a work around current limitations in
652	* TComBitstream that won't be fixed before HM-3.0 */
653	UChar seiData = reinterpret_cast<UChar >(seiBs.getStartStream());
654	for (Int i = 0; i < seiBs.getNumberOfWrittenBits()/8; i++)
655	{
656	bs_SPS_PPS_SEI.write(seiData[i], 8);
657	}
658	bs_SPS_PPS_SEI.write(1, 32);
659	seiBs.destroy();
660	}
661
662	/* insert the bs_SPS_PPS_SEI before the pcBitstreamOut */
663	bs_SPS_PPS_SEI.flushBuffer();
664	pcBitstreamOut->insertAt(bs_SPS_PPS_SEI, 0);
665
666	bs_SPS_PPS_SEI.destroy();
667	pcPic->getPicYuvRec()->copyToPic(pcPicYuvRecOut);
668
669	pcPic->setReconMark ( true );
670
671	}
672
673	Void TEncPic::preLoopFilterPicAll( TComPic* pcPic, UInt64& ruiDist, UInt64& ruiBits )
674	{
675	TComSlice* pcSlice = pcPic->getSlice(pcPic->getCurrSliceIdx());
676	Bool bCalcDist = false;
677
678	m_pcLoopFilter->setCfg(pcSlice->getLoopFilterDisable(), m_pcCfg->getLoopFilterAlphaC0Offget(), m_pcCfg->getLoopFilterBetaOffget());
679	m_pcLoopFilter->loopFilterPic( pcPic );
680
681	m_pcEntropyCoder->setEntropyCoder ( m_pcEncTop->getRDGoOnSbacCoder(), pcSlice );
682	m_pcEntropyCoder->resetEntropy ();
683	m_pcEntropyCoder->setBitstream ( m_pcBitCounter );
684
685	// Adaptive Loop filter
686	if( pcSlice->getSPS()->getUseALF() )
687	{
688	ALFParam cAlfParam;
689	#if TSB_ALF_HEADER
690	m_pcAdaptiveLoopFilter->setNumCUsInFrame(pcPic);
691	#endif
692	m_pcAdaptiveLoopFilter->allocALFParam(&cAlfParam);
693
694	m_pcAdaptiveLoopFilter->startALFEnc(pcPic, m_pcEntropyCoder);
695
696	UInt uiMaxAlfCtrlDepth;
697	m_pcAdaptiveLoopFilter->ALFProcess(&cAlfParam, pcSlice->getLambda(), ruiDist, ruiBits, uiMaxAlfCtrlDepth );
698	m_pcAdaptiveLoopFilter->endALFEnc();
699	m_pcAdaptiveLoopFilter->freeALFParam(&cAlfParam);
700	}
701
702	m_pcEntropyCoder->resetEntropy ();
703	ruiBits += m_pcEntropyCoder->getNumberOfWrittenBits();
704
705	if (!bCalcDist)
706	ruiDist = xFindDistortionFrame(pcPic->getPicYuvOrg(), pcPic->getPicYuvRec());
707	}
708
709	// ====================================================================================================================
710	// Protected member functions
711	// ====================================================================================================================
712
713	UInt64 TEncPic::xFindDistortionFrame (TComPicYuv* pcPic0, TComPicYuv* pcPic1)
714	{
715	Int x, y;
716	Pel* pSrc0 = pcPic0 ->getLumaAddr();
717	Pel* pSrc1 = pcPic1 ->getLumaAddr();
718	#if IBDI_DISTORTION
719	Int iShift = g_uiBitIncrement;
720	Int iOffset = 1<<(g_uiBitIncrement-1);
721	#else
722	UInt uiShift = g_uiBitIncrement<<1;
723	#endif
724	Int iTemp;
725
726	Int iStride = pcPic0->getStride();
727	Int iWidth = pcPic0->getWidth();
728	Int iHeight = pcPic0->getHeight();
729
730	UInt64 uiTotalDiff = 0;
731
732	for( y = 0; y < iHeight; y++ )
733	{
734	for( x = 0; x < iWidth; x++ )
735	{
736	#if IBDI_DISTORTION
737	iTemp = ((pSrc0[x]+iOffset)>>iShift) - ((pSrc1[x]+iOffset)>>iShift); uiTotalDiff += iTemp * iTemp;
738	#else
739	iTemp = pSrc0[x] - pSrc1[x]; uiTotalDiff += (iTemp*iTemp) >> uiShift;
740	#endif
741	}
742	pSrc0 += iStride;
743	pSrc1 += iStride;
744	}
745
746	iHeight >>= 1;
747	iWidth >>= 1;
748	iStride >>= 1;
749
750	pSrc0 = pcPic0->getCbAddr();
751	pSrc1 = pcPic1->getCbAddr();
752
753	for( y = 0; y < iHeight; y++ )
754	{
755	for( x = 0; x < iWidth; x++ )
756	{
757	#if IBDI_DISTORTION
758	iTemp = ((pSrc0[x]+iOffset)>>iShift) - ((pSrc1[x]+iOffset)>>iShift); uiTotalDiff += iTemp * iTemp;
759	#else
760	iTemp = pSrc0[x] - pSrc1[x]; uiTotalDiff += (iTemp*iTemp) >> uiShift;
761	#endif
762	}
763	pSrc0 += iStride;
764	pSrc1 += iStride;
765	}
766
767	pSrc0 = pcPic0->getCrAddr();
768	pSrc1 = pcPic1->getCrAddr();
769
770	for( y = 0; y < iHeight; y++ )
771	{
772	for( x = 0; x < iWidth; x++ )
773	{
774	#if IBDI_DISTORTION
775	iTemp = ((pSrc0[x]+iOffset)>>iShift) - ((pSrc1[x]+iOffset)>>iShift); uiTotalDiff += iTemp * iTemp;
776	#else
777	iTemp = pSrc0[x] - pSrc1[x]; uiTotalDiff += (iTemp*iTemp) >> uiShift;
778	#endif
779	}
780	pSrc0 += iStride;
781	pSrc1 += iStride;
782	}
783
784	return uiTotalDiff;
785	}
786
787	Void TEncPic::xCalculateAddPSNR( TComPic* pcPic, TComPicYuv* pcPicD, UInt uibits, Double dEncTime )
788	{
789	Int x, y;
790	UInt64 uiSSDY = 0;
791	UInt64 uiSSDU = 0;
792	UInt64 uiSSDV = 0;
793
794	Double dYPSNR = 0.0;
795	Double dUPSNR = 0.0;
796	Double dVPSNR = 0.0;
797
798	//===== calculate PSNR =====
799	Pel* pOrg = pcPic ->getPicYuvOrg()->getLumaAddr();
800	Pel* pRec = pcPicD->getLumaAddr();
801	Int iStride = pcPicD->getStride();
802
803	Int iWidth;
804	Int iHeight;
805
806	iWidth = pcPicD->getWidth () - m_pcEncTop->getPad(0);
807	iHeight = pcPicD->getHeight() - m_pcEncTop->getPad(1);
808
809	Int iSize = iWidth*iHeight;
810
811	UInt maxval = 255 * (1<<(g_uiBitDepth + g_uiBitIncrement -8));
812	Double fRefValueY = (double) maxval * maxval * iSize;
813	Double fRefValueC = fRefValueY / 4.0;
814
815	for( y = 0; y < iHeight; y++ )
816	{
817	for( x = 0; x < iWidth; x++ )
818	{
819	Int iDiff = (Int)( pOrg[x] - pRec[x] );
820	uiSSDY += iDiff * iDiff;
821	}
822	pOrg += iStride;
823	pRec += iStride;
824	}
825
826	#if HHI_VSO
827	if ( m_pcRdCost->getUseRenModel() )
828	{
829	TRenModel* pcRenModel = m_pcEncTop->getEncTop()->getRenModel();
830	Int64 iDistVSOY, iDistVSOU, iDistVSOV;
831	pcRenModel->getTotalSSE( iDistVSOY, iDistVSOU, iDistVSOV );
832	dYPSNR = ( iDistVSOY ? 10.0 * log10( fRefValueY / (Double) iDistVSOY ) : 99.99 );
833	dUPSNR = ( iDistVSOU ? 10.0 * log10( fRefValueC / (Double) iDistVSOU ) : 99.99 );
834	dVPSNR = ( iDistVSOV ? 10.0 * log10( fRefValueC / (Double) iDistVSOV ) : 99.99 );
835	}
836	else
837	#endif
838	{
839	iHeight >>= 1;
840	iWidth >>= 1;
841	iStride >>= 1;
842	pOrg = pcPic ->getPicYuvOrg()->getCbAddr();
843	pRec = pcPicD->getCbAddr();
844
845	for( y = 0; y < iHeight; y++ )
846	{
847	for( x = 0; x < iWidth; x++ )
848	{
849	Int iDiff = (Int)( pOrg[x] - pRec[x] );
850	uiSSDU += iDiff * iDiff;
851	}
852	pOrg += iStride;
853	pRec += iStride;
854	}
855
856	pOrg = pcPic ->getPicYuvOrg()->getCrAddr();
857	pRec = pcPicD->getCrAddr();
858
859	for( y = 0; y < iHeight; y++ )
860	{
861	for( x = 0; x < iWidth; x++ )
862	{
863	Int iDiff = (Int)( pOrg[x] - pRec[x] );
864	uiSSDV += iDiff * iDiff;
865	}
866	pOrg += iStride;
867	pRec += iStride;
868	}
869	dYPSNR = ( uiSSDY ? 10.0 * log10( fRefValueY / (Double)uiSSDY ) : 99.99 );
870	dUPSNR = ( uiSSDU ? 10.0 * log10( fRefValueC / (Double)uiSSDU ) : 99.99 );
871	dVPSNR = ( uiSSDV ? 10.0 * log10( fRefValueC / (Double)uiSSDV ) : 99.99 );
872	}
873	// fix: total bits should consider slice size bits (32bit)
874	uibits += 32;
875
876	#if RVM_VCEGAM10
877	m_vRVM_RP.push_back( uibits );
878	#endif
879
880	//===== add PSNR =====
881	m_pcEncTop->m_cAnalyzeAll.addResult (dYPSNR, dUPSNR, dVPSNR, (Double)uibits);
882	TComSlice* pcSlice = pcPic->getSlice(0);
883	if (pcSlice->isIntra())
884	{
885	m_pcEncTop->m_cAnalyzeI.addResult (dYPSNR, dUPSNR, dVPSNR, (Double)uibits);
886	}
887	if (pcSlice->isInterP())
888	{
889	m_pcEncTop->m_cAnalyzeP.addResult (dYPSNR, dUPSNR, dVPSNR, (Double)uibits);
890	}
891	if (pcSlice->isInterB())
892	{
893	m_pcEncTop->m_cAnalyzeB.addResult (dYPSNR, dUPSNR, dVPSNR, (Double)uibits);
894	}
895	if(pcPic->getViewIdx()!=-1)
896	{
897	if(! m_pcEncTop->isDepthCoder())
898	{
899	printf("\nView \t\t%2d\t POC %4d ( %c-SLICE, QP %d ) %10d bits ",
900	pcSlice->getViewIdx(),
901	pcSlice->getPOC(),
902	pcSlice->isIntra() ? 'I' : pcSlice->isInterP() ? 'P' : 'B',
903	pcSlice->getSliceQp(),
904	uibits );
905	}
906	else
907	{
908	printf("\nDepth View \t%2d\t POC %4d ( %c-SLICE, QP %d ) %10d bits ",
909	pcSlice->getViewIdx(),
910	pcSlice->getPOC(),
911	pcSlice->isIntra() ? 'I' : pcSlice->isInterP() ? 'P' : 'B',
912	pcSlice->getSliceQp(),
913	uibits );
914	}
915	}
916	else
917	{
918	printf("\nPOC %4d ( %c-SLICE, QP %d ) %10d bits ",
919	pcSlice->getPOC(),
920	pcSlice->isIntra() ? 'I' : pcSlice->isInterP() ? 'P' : 'B',
921	pcSlice->getSliceQp(),
922	uibits );
923	}
924
925	printf( "[Y %6.4lf dB U %6.4lf dB V %6.4lf dB] ", dYPSNR, dUPSNR, dVPSNR );
926	printf ("[ET %5.0f ] ", dEncTime );
927
928	for (Int iRefList = 0; iRefList < 2; iRefList++)
929	{
930	printf ("[L%d ", iRefList);
931	for (Int iRefIndex = 0; iRefIndex < pcSlice->getNumRefIdx(RefPicList(iRefList)); iRefIndex++)
932	{
933	if( pcSlice->getViewIdx() != pcSlice->getRefViewIdx( RefPicList(iRefList), iRefIndex ) )
934	{
935	printf( "V%d", pcSlice->getRefViewIdx( RefPicList(iRefList), iRefIndex ) );
936	if( pcSlice->getPOC() != pcSlice->getRefPOC( RefPicList(iRefList), iRefIndex ) )
937	printf( "(%d)", pcSlice->getRefPOC( RefPicList(iRefList), iRefIndex ) );
938	printf( " " );
939	}
940	else
941	printf ("%d ", pcSlice->getRefPOC(RefPicList(iRefList), iRefIndex));
942	}
943	printf ("] ");
944	}
945	#if DCM_COMB_LIST
946	if(pcSlice->getNumRefIdx(REF_PIC_LIST_C)>0 && !pcSlice->getNoBackPredFlag())
947	{
948	printf ("[LC ");
949	for (Int iRefIndex = 0; iRefIndex < pcSlice->getNumRefIdx(REF_PIC_LIST_C); iRefIndex++)
950	{
951	printf ("%d ", pcSlice->getRefPOC((RefPicList)pcSlice->getListIdFromIdxOfLC(iRefIndex), pcSlice->getRefIdxFromIdxOfLC(iRefIndex)));
952	}
953	printf ("] ");
954	}
955	#endif
956
957	fflush(stdout);
958	}
959
960	#if DCM_DECODING_REFRESH
961	/** Function for deciding the nal_unit_type.
962	* \param uiPOCCurr POC of the current picture
963	* \returns the nal_unit type of the picture
964	* This function checks the configuration and returns the appropriate nal_unit_type for the picture.
965	*/
966	NalUnitType TEncPic::getNalUnitType(UInt uiPOCCurr)
967	{
968	if (uiPOCCurr == 0)
969	{
970	return NAL_UNIT_CODED_SLICE_IDR;
971	}
972	#if 0
973	if (uiPOCCurr % m_pcCfg->getIntraPeriod() == 0)
974	{
975	if (m_pcCfg->getDecodingRefreshType() == 1)
976	{
977	return NAL_UNIT_CODED_SLICE_CDR;
978	}
979	else if (m_pcCfg->getDecodingRefreshType() == 2)
980	{
981	return NAL_UNIT_CODED_SLICE_IDR;
982	}
983	}
984	#endif
985	return NAL_UNIT_CODED_SLICE;
986	}
987	#endif
988
989	#if RVM_VCEGAM10
990	Double TEncPic::xCalculateRVM()
991	{
992	Double dRVM = 0;
993
994	//if( m_pcCfg->getGOPSize() == 1 && m_pcCfg->getIntraPeriod() != 1 && m_pcCfg->getFrameToBeEncoded() > RVM_VCEGAM10_M * 2 )
995	{
996	// calculate RVM only for lowdelay configurations
997	std::vector<Double> vRL , vB;
998	size_t N = m_vRVM_RP.size();
999	vRL.resize( N );
1000	vB.resize( N );
1001
1002	Int i;
1003	Double dRavg = 0 , dBavg = 0;
1004	vB[RVM_VCEGAM10_M] = 0;
1005	for( i = RVM_VCEGAM10_M + 1 ; i < N - RVM_VCEGAM10_M + 1 ; i++ )
1006	{
1007	vRL[i] = 0;
1008	for( Int j = i - RVM_VCEGAM10_M ; j <= i + RVM_VCEGAM10_M - 1 ; j++ )
1009	vRL[i] += m_vRVM_RP[j];
1010	vRL[i] /= ( 2 * RVM_VCEGAM10_M );
1011	vB[i] = vB[i-1] + m_vRVM_RP[i] - vRL[i];
1012	dRavg += m_vRVM_RP[i];
1013	dBavg += vB[i];
1014	}
1015
1016	dRavg /= ( N - 2 * RVM_VCEGAM10_M );
1017	dBavg /= ( N - 2 * RVM_VCEGAM10_M );
1018
1019	double dSigamB = 0;
1020	for( i = RVM_VCEGAM10_M + 1 ; i < N - RVM_VCEGAM10_M + 1 ; i++ )
1021	{
1022	Double tmp = vB[i] - dBavg;
1023	dSigamB += tmp * tmp;
1024	}
1025	dSigamB = sqrt( dSigamB / ( N - 2 * RVM_VCEGAM10_M ) );
1026
1027	double f = sqrt( 12.0 * ( RVM_VCEGAM10_M - 1 ) / ( RVM_VCEGAM10_M + 1 ) );
1028
1029	dRVM = dSigamB / dRavg * f;
1030	}
1031
1032	return( dRVM );
1033	}
1034	#endif
1035

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