source: 3DVCSoftware/branches/HTM-DEV-0.1-dev/source/App/TAppDecoder/TAppDecTop.cpp @ 366

Last change on this file since 366 was 366, checked in by tech, 12 years ago

Further minor cleanups.
  • Property svn:eol-style set to native
File size: 17.0 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) 2010-2013, ITU/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 ITU/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/** \file     TAppDecTop.cpp
35    \brief    Decoder application class
36*/
37
38#include <list>
39#include <vector>
40#include <stdio.h>
41#include <fcntl.h>
42#include <assert.h>
43
44#include "TAppDecTop.h"
45#include "TLibDecoder/AnnexBread.h"
46#include "TLibDecoder/NALread.h"
47
48//! \ingroup TAppDecoder
49//! \{
50
51// ====================================================================================================================
52// Constructor / destructor / initialization / destroy
53// ====================================================================================================================
54
55TAppDecTop::TAppDecTop()
56#if !H_MV
57: m_iPOCLastDisplay(-MAX_INT)
58#else
59: m_numDecoders( 0 )
60#endif
61{
62  ::memset (m_abDecFlag, 0, sizeof (m_abDecFlag));
63#if H_MV
64  for (Int i = 0; i < MAX_NUM_LAYER_IDS; i++) m_layerIdToDecIdx[i] = -1; 
65#endif
66}
67
68Void TAppDecTop::create()
69{
70}
71
72Void TAppDecTop::destroy()
73{
74  if (m_pchBitstreamFile)
75  {
76    free (m_pchBitstreamFile);
77    m_pchBitstreamFile = NULL;
78  }
79#if H_MV
80  for (Int decIdx = 0; decIdx < m_numDecoders; decIdx++)
81  {
82    if (m_pchReconFiles[decIdx])
83    {
84      free (m_pchReconFiles[decIdx]);
85      m_pchReconFiles[decIdx] = NULL;
86    }
87  }
88#endif
89  if (m_pchReconFile)
90  {
91    free (m_pchReconFile);
92    m_pchReconFile = NULL;
93  }
94}
95
96// ====================================================================================================================
97// Public member functions
98// ====================================================================================================================
99
100/**
101 - create internal class
102 - initialize internal class
103 - until the end of the bitstream, call decoding function in TDecTop class
104 - delete allocated buffers
105 - destroy internal class
106 .
107 */
108Void TAppDecTop::decode()
109{
110  Int                 poc;
111#if H_MV
112  poc = -1; 
113#endif
114  TComList<TComPic*>* pcListPic = NULL;
115
116  ifstream bitstreamFile(m_pchBitstreamFile, ifstream::in | ifstream::binary);
117  if (!bitstreamFile)
118  {
119    fprintf(stderr, "\nfailed to open bitstream file `%s' for reading\n", m_pchBitstreamFile);
120    exit(EXIT_FAILURE);
121  }
122
123  InputByteStream bytestream(bitstreamFile);
124
125  // create & initialize internal classes
126  xCreateDecLib();
127  xInitDecLib  ();
128#if !H_MV
129  m_iPOCLastDisplay += m_iSkipFrame;      // set the last displayed POC correctly for skip forward.
130
131  // main decoder loop
132  Bool recon_opened = false; // reconstruction file not yet opened. (must be performed after SPS is seen)
133#else
134  Int  pocCurrPic        = -MAX_INT;     
135  Int  pocLastPic        = -MAX_INT;   
136 
137  Int  layerIdLastPic    = 0; 
138  Int  layerIdCurrPic    = 0; 
139
140  Int  decIdxLastPic     = 0; 
141  Int  decIdxCurrPic     = 0; 
142
143  Bool firstSlice        = true; 
144#endif
145 
146  while (!!bitstreamFile)
147  {
148    /* location serves to work around a design fault in the decoder, whereby
149     * the process of reading a new slice that is the first slice of a new frame
150     * requires the TDecTop::decode() method to be called again with the same
151     * nal unit. */
152    streampos location = bitstreamFile.tellg();
153    AnnexBStats stats = AnnexBStats();
154#if !H_MV
155    Bool bPreviousPictureDecoded = false;
156#endif
157
158    vector<uint8_t> nalUnit;
159    InputNALUnit nalu;
160    byteStreamNALUnit(bytestream, nalUnit, stats);
161
162    // call actual decoding function
163    Bool bNewPicture = false;
164#if H_MV
165    Bool newSliceDiffPoc   = false;
166    Bool newSliceDiffLayer = false;
167    Bool allLayersDecoded  = false;     
168#endif
169    if (nalUnit.empty())
170    {
171      /* this can happen if the following occur:
172       *  - empty input file
173       *  - two back-to-back start_code_prefixes
174       *  - start_code_prefix immediately followed by EOF
175       */
176      fprintf(stderr, "Warning: Attempt to decode an empty NAL unit\n");
177    }
178    else
179    {
180      read(nalu, nalUnit);
181#if H_MV     
182      Int decIdx     = xGetDecoderIdx( nalu.m_layerId , true );
183     
184      if( (m_iMaxTemporalLayer >= 0 && nalu.m_temporalId > m_iMaxTemporalLayer) || !isNaluWithinTargetDecLayerIdSet(&nalu) )
185      {
186        bNewPicture = false;
187      }
188      else
189      { 
190        newSliceDiffLayer = nalu.isSlice() && ( nalu.m_layerId != layerIdCurrPic ) && !firstSlice;
191        newSliceDiffPoc   = m_tDecTop[decIdx]->decode(nalu, m_iSkipFrame, m_pocLastDisplay[decIdx], newSliceDiffLayer );
192        // decode function only returns true when all of the following conditions are true
193        // - poc in particular layer changes
194        // - nalu does not belong to first slice in layer
195        // - nalu.isSlice() == true     
196
197        bNewPicture       = newSliceDiffLayer || newSliceDiffPoc; 
198
199        if ( nalu.isSlice() && firstSlice )
200        {
201          layerIdCurrPic = nalu.m_layerId; 
202          pocCurrPic     = m_tDecTop[decIdx]->getCurrPoc(); 
203          decIdxCurrPic  = decIdx; 
204          firstSlice     = false; 
205        }
206
207        if ( bNewPicture || !bitstreamFile )
208        { 
209          layerIdLastPic    = layerIdCurrPic; 
210          layerIdCurrPic    = nalu.m_layerId; 
211         
212          pocLastPic        = pocCurrPic; 
213          pocCurrPic        = m_tDecTop[decIdx]->getCurrPoc(); 
214         
215          decIdxLastPic     = decIdxCurrPic; 
216          decIdxCurrPic     = decIdx; 
217
218          allLayersDecoded = ( pocCurrPic != pocLastPic );
219        }
220
221       
222#else
223      if( (m_iMaxTemporalLayer >= 0 && nalu.m_temporalId > m_iMaxTemporalLayer) || !isNaluWithinTargetDecLayerIdSet(&nalu)  )
224      {
225        if(bPreviousPictureDecoded)
226        {
227          bNewPicture = true;
228          bPreviousPictureDecoded = false;
229        }
230        else
231        {
232          bNewPicture = false;
233        }
234      }
235      else
236      {
237        bNewPicture = m_cTDecTop.decode(nalu, m_iSkipFrame, m_iPOCLastDisplay);
238#endif
239        if (bNewPicture)
240        {
241          bitstreamFile.clear();
242          /* location points to the current nalunit payload[1] due to the
243           * need for the annexB parser to read three extra bytes.
244           * [1] except for the first NAL unit in the file
245           *     (but bNewPicture doesn't happen then) */
246          bitstreamFile.seekg(location-streamoff(3));
247          bytestream.reset();
248        }
249#if !H_MV
250        bPreviousPictureDecoded = true; 
251#endif
252      }
253    }
254    if (bNewPicture || !bitstreamFile)
255    {
256#if H_MV
257      assert( decIdxLastPic != -1 ); 
258      m_tDecTop[decIdxLastPic]->endPicDecoding(poc, pcListPic, m_targetDecLayerIdSet );
259#else
260      m_cTDecTop.executeLoopFilters(poc, pcListPic);
261#endif
262    }
263#if H_3D
264    if ( allLayersDecoded || !bitstreamFile )
265    {
266      for( Int dI = 0; dI < m_numDecoders; dI++ )
267      {
268        TComPic* picLastCoded = m_ivPicLists.getPic( m_tDecTop[dI]->getLayerId(), pocLastPic );
269        assert( picLastCoded != NULL );       
270        picLastCoded->compressMotion();         
271      }
272    }
273#endif
274
275    if( pcListPic )
276    {
277#if H_MV
278      if ( m_pchReconFiles[decIdxLastPic] && !m_reconOpen[decIdxLastPic] )
279#else
280      if ( m_pchReconFile && !recon_opened )
281#endif
282      {
283        if (!m_outputBitDepthY) { m_outputBitDepthY = g_bitDepthY; }
284        if (!m_outputBitDepthC) { m_outputBitDepthC = g_bitDepthC; }
285
286#if H_MV
287        m_tVideoIOYuvReconFile[decIdxLastPic]->open( m_pchReconFiles[decIdxLastPic], true, m_outputBitDepthY, m_outputBitDepthC, g_bitDepthY, g_bitDepthC ); // write mode
288        m_reconOpen[decIdxLastPic] = true;
289      }
290      if ( bNewPicture && newSliceDiffPoc && 
291#else
292        m_cTVideoIOYuvReconFile.open( m_pchReconFile, true, m_outputBitDepthY, m_outputBitDepthC, g_bitDepthY, g_bitDepthC ); // write mode
293        recon_opened = true;
294      }
295      if ( bNewPicture && 
296#endif
297           (   nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR_W_RADL
298            || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR_N_LP
299            || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_N_LP
300            || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_W_RADL
301            || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_W_LP ) )
302      {
303#if H_MV
304        xFlushOutput( pcListPic, decIdxLastPic );
305#else
306        xFlushOutput( pcListPic );
307#endif
308      }
309      // write reconstruction to file
310      if(bNewPicture)
311      {
312#if H_MV
313        xWriteOutput( pcListPic, decIdxLastPic, nalu.m_temporalId );
314      }
315    }
316  }
317
318  for(UInt decIdx = 0; decIdx < m_numDecoders; decIdx++)
319  {
320    xFlushOutput( m_tDecTop[decIdx]->getListPic(), decIdx );
321  }
322#else
323        xWriteOutput( pcListPic, nalu.m_temporalId );
324      }
325    }
326  }
327 
328  xFlushOutput( pcListPic );
329  // delete buffers
330  m_cTDecTop.deletePicBuffer();
331#endif
332     
333  // destroy internal classes
334  xDestroyDecLib();
335}
336
337// ====================================================================================================================
338// Protected member functions
339// ====================================================================================================================
340
341Void TAppDecTop::xCreateDecLib()
342{
343#if H_MV
344  // initialize global variables
345  initROM(); 
346#else
347  // create decoder class
348  m_cTDecTop.create();
349#endif
350}
351
352Void TAppDecTop::xDestroyDecLib()
353{
354#if H_MV
355  // destroy ROM
356  destroyROM();
357
358  for(Int decIdx = 0; decIdx < m_numDecoders ; decIdx++)
359  {
360    if( m_tVideoIOYuvReconFile[decIdx] )
361    {
362      m_tVideoIOYuvReconFile[decIdx]->close();
363      delete m_tVideoIOYuvReconFile[decIdx]; 
364      m_tVideoIOYuvReconFile[decIdx] = NULL ;
365    }
366
367    if( m_tDecTop[decIdx] )
368    {
369      m_tDecTop[decIdx]->deletePicBuffer();
370      m_tDecTop[decIdx]->destroy() ;
371    }
372    delete m_tDecTop[decIdx] ; 
373    m_tDecTop[decIdx] = NULL ;
374  }
375#else
376  if ( m_pchReconFile )
377  {
378    m_cTVideoIOYuvReconFile. close();
379  }
380 
381  // destroy decoder class
382  m_cTDecTop.destroy();
383#endif
384}
385
386Void TAppDecTop::xInitDecLib()
387{
388#if !H_MV
389  // initialize decoder class
390  m_cTDecTop.init();
391  m_cTDecTop.setDecodedPictureHashSEIEnabled(m_decodedPictureHashSEIEnabled);
392#endif
393}
394
395/** \param pcListPic list of pictures to be written to file
396    \todo            DYN_REF_FREE should be revised
397 */
398#if H_MV
399Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, Int decIdx, Int tId )
400#else
401Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId )
402#endif
403{
404  TComList<TComPic*>::iterator iterPic   = pcListPic->begin();
405  Int not_displayed = 0;
406
407  while (iterPic != pcListPic->end())
408  {
409    TComPic* pcPic = *(iterPic);
410#if H_MV
411    if(pcPic->getOutputMark() && pcPic->getPOC() > m_pocLastDisplay[decIdx])
412#else
413    if(pcPic->getOutputMark() && pcPic->getPOC() > m_iPOCLastDisplay)
414#endif
415    {
416       not_displayed++;
417    }
418    iterPic++;
419  }
420  iterPic   = pcListPic->begin();
421 
422  while (iterPic != pcListPic->end())
423  {
424    TComPic* pcPic = *(iterPic);
425   
426#if H_MV
427    if ( pcPic->getOutputMark() && (not_displayed >  pcPic->getNumReorderPics(tId) && pcPic->getPOC() > m_pocLastDisplay[decIdx]))
428#else
429    if ( pcPic->getOutputMark() && (not_displayed >  pcPic->getNumReorderPics(tId) && pcPic->getPOC() > m_iPOCLastDisplay))
430#endif
431    {
432      // write to file
433       not_displayed--;
434#if H_MV
435      if ( m_pchReconFiles[decIdx] )
436#else
437      if ( m_pchReconFile )
438#endif
439      {
440        const Window &conf = pcPic->getConformanceWindow();
441        const Window &defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window();
442#if H_MV
443        m_tVideoIOYuvReconFile[decIdx]->write( pcPic->getPicYuvRec(),
444#else
445        m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(),
446#endif
447                                       conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(),
448                                       conf.getWindowRightOffset() + defDisp.getWindowRightOffset(),
449                                       conf.getWindowTopOffset() + defDisp.getWindowTopOffset(),
450                                       conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset() );
451      }
452     
453      // update POC of display order
454#if H_MV
455      m_pocLastDisplay[decIdx] = pcPic->getPOC();
456#else
457      m_iPOCLastDisplay = pcPic->getPOC();
458#endif
459     
460      // erase non-referenced picture in the reference picture list after display
461      if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true )
462      {
463#if !DYN_REF_FREE
464        pcPic->setReconMark(false);
465       
466        // mark it should be extended later
467        pcPic->getPicYuvRec()->setBorderExtension( false );
468       
469#else
470        pcPic->destroy();
471        pcListPic->erase( iterPic );
472        iterPic = pcListPic->begin(); // to the beginning, non-efficient way, have to be revised!
473        continue;
474#endif
475      }
476      pcPic->setOutputMark(false);
477    }
478   
479    iterPic++;
480  }
481}
482
483/** \param pcListPic list of pictures to be written to file
484    \todo            DYN_REF_FREE should be revised
485 */
486#if H_MV
487Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic, Int decIdx )
488#else
489Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic )
490#endif
491{
492  if(!pcListPic)
493  {
494    return;
495  } 
496  TComList<TComPic*>::iterator iterPic   = pcListPic->begin();
497
498  iterPic   = pcListPic->begin();
499 
500  while (iterPic != pcListPic->end())
501  {
502    TComPic* pcPic = *(iterPic);
503
504    if ( pcPic->getOutputMark() )
505    {
506      // write to file
507#if H_MV
508      if ( m_pchReconFiles[decIdx] )
509#else
510      if ( m_pchReconFile )
511#endif
512      {
513        const Window &conf = pcPic->getConformanceWindow();
514        const Window &defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window();
515#if H_MV
516        m_tVideoIOYuvReconFile[decIdx]->write( pcPic->getPicYuvRec(),
517#else
518        m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(),
519#endif
520                                       conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(),
521                                       conf.getWindowRightOffset() + defDisp.getWindowRightOffset(),
522                                       conf.getWindowTopOffset() + defDisp.getWindowTopOffset(),
523                                       conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset() );
524      }
525     
526      // update POC of display order
527#if H_MV
528      m_pocLastDisplay[decIdx] = pcPic->getPOC();
529#else
530      m_iPOCLastDisplay = pcPic->getPOC();
531#endif
532     
533      // erase non-referenced picture in the reference picture list after display
534      if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true )
535      {
536#if !DYN_REF_FREE
537        pcPic->setReconMark(false);
538       
539        // mark it should be extended later
540        pcPic->getPicYuvRec()->setBorderExtension( false );
541       
542#else
543        pcPic->destroy();
544        pcListPic->erase( iterPic );
545        iterPic = pcListPic->begin(); // to the beginning, non-efficient way, have to be revised!
546        continue;
547#endif
548      }
549      pcPic->setOutputMark(false);
550    }
551#if !H_MV
552#if !DYN_REF_FREE
553    if(pcPic)
554    {
555      pcPic->destroy();
556      delete pcPic;
557      pcPic = NULL;
558    }
559#endif
560#endif
561    iterPic++;
562  }
563#if H_MV
564  m_pocLastDisplay[decIdx] = -MAX_INT;
565#else
566  pcListPic->clear();
567  m_iPOCLastDisplay = -MAX_INT;
568#endif
569}
570
571/** \param nalu Input nalu to check whether its LayerId is within targetDecLayerIdSet
572 */
573Bool TAppDecTop::isNaluWithinTargetDecLayerIdSet( InputNALUnit* nalu )
574{
575  if ( m_targetDecLayerIdSet.size() == 0 ) // By default, the set is empty, meaning all LayerIds are allowed
576  {
577    return true;
578  }
579  for (std::vector<Int>::iterator it = m_targetDecLayerIdSet.begin(); it != m_targetDecLayerIdSet.end(); it++)
580  {
581#if H_MV
582    if ( nalu->m_layerId == (*it) )
583#else
584    if ( nalu->m_reservedZero6Bits == (*it) )
585#endif
586    {
587      return true;
588    }
589  }
590  return false;
591}
592
593//! \}
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