source: SHVCSoftware/branches/SHM-5.1-dev/source/Lib/TLibDecoder/SEIread.cpp @ 599

Last change on this file since 599 was 595, checked in by seregin, 11 years ago

merge with SHM-5.0-dev branch
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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) 2010-2014, 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/**
35 \file     SEIread.cpp
36 \brief    reading functionality for SEI messages
37 */
38
39#include "TLibCommon/CommonDef.h"
40#include "TLibCommon/TComBitStream.h"
41#include "TLibCommon/SEI.h"
42#include "TLibCommon/TComSlice.h"
43#include "SyntaxElementParser.h"
44#include "SEIread.h"
45
46//! \ingroup TLibDecoder
47//! \{
48
49#if ENC_DEC_TRACE
50Void  xTraceSEIHeader()
51{
52  fprintf( g_hTrace, "=========== SEI message ===========\n");
53}
54
55Void  xTraceSEIMessageType(SEI::PayloadType payloadType)
56{
57  switch (payloadType)
58  {
59  case SEI::DECODED_PICTURE_HASH:
60    fprintf( g_hTrace, "=========== Decoded picture hash SEI message ===========\n");
61    break;
62  case SEI::USER_DATA_UNREGISTERED:
63    fprintf( g_hTrace, "=========== User Data Unregistered SEI message ===========\n");
64    break;
65  case SEI::ACTIVE_PARAMETER_SETS:
66    fprintf( g_hTrace, "=========== Active Parameter sets SEI message ===========\n");
67    break;
68  case SEI::BUFFERING_PERIOD:
69    fprintf( g_hTrace, "=========== Buffering period SEI message ===========\n");
70    break;
71  case SEI::PICTURE_TIMING:
72    fprintf( g_hTrace, "=========== Picture timing SEI message ===========\n");
73    break;
74  case SEI::RECOVERY_POINT:
75    fprintf( g_hTrace, "=========== Recovery point SEI message ===========\n");
76    break;
77  case SEI::FRAME_PACKING:
78    fprintf( g_hTrace, "=========== Frame Packing Arrangement SEI message ===========\n");
79    break;
80  case SEI::DISPLAY_ORIENTATION:
81    fprintf( g_hTrace, "=========== Display Orientation SEI message ===========\n");
82    break;
83  case SEI::TEMPORAL_LEVEL0_INDEX:
84    fprintf( g_hTrace, "=========== Temporal Level Zero Index SEI message ===========\n");
85    break;
86  case SEI::REGION_REFRESH_INFO:
87    fprintf( g_hTrace, "=========== Gradual Decoding Refresh Information SEI message ===========\n");
88    break;
89  case SEI::DECODING_UNIT_INFO:
90    fprintf( g_hTrace, "=========== Decoding Unit Information SEI message ===========\n");
91    break;
92  case SEI::TONE_MAPPING_INFO:
93    fprintf( g_hTrace, "===========Tone Mapping Info SEI message ===========\n");
94    break;
95  case SEI::SOP_DESCRIPTION:
96    fprintf( g_hTrace, "=========== SOP Description SEI message ===========\n");
97    break;
98  case SEI::SCALABLE_NESTING:
99    fprintf( g_hTrace, "=========== Scalable Nesting SEI message ===========\n");
100    break;
101#if SVC_EXTENSION
102#if LAYERS_NOT_PRESENT_SEI
103  case SEI::LAYERS_NOT_PRESENT:
104    fprintf( g_hTrace, "=========== Layers Present SEI message ===========\n");
105    break;
106#endif
107#if N0383_IL_CONSTRAINED_TILE_SETS_SEI
108  case SEI::INTER_LAYER_CONSTRAINED_TILE_SETS:
109    fprintf( g_hTrace, "=========== Inter Layer Constrained Tile Sets SEI message ===========\n");
110    break;
111#endif
112#if SUB_BITSTREAM_PROPERTY_SEI
113    case SEI::SUB_BITSTREAM_PROPERTY:
114      fprintf( g_hTrace, "=========== Sub-bitstream property SEI message ===========\n");
115      break;
116#endif
117#endif //SVC_EXTENSION
118  default:
119    fprintf( g_hTrace, "=========== Unknown SEI message ===========\n");
120    break;
121  }
122}
123#endif
124
125/**
126 * unmarshal a single SEI message from bitstream bs
127 */
128#if LAYERS_NOT_PRESENT_SEI
129void SEIReader::parseSEImessage(TComInputBitstream* bs, SEIMessages& seis, const NalUnitType nalUnitType, TComVPS *vps, TComSPS *sps)
130#else
131void SEIReader::parseSEImessage(TComInputBitstream* bs, SEIMessages& seis, const NalUnitType nalUnitType, TComSPS *sps)
132#endif
133{
134  setBitstream(bs);
135
136  assert(!m_pcBitstream->getNumBitsUntilByteAligned());
137  do
138  {
139#if LAYERS_NOT_PRESENT_SEI
140    xReadSEImessage(seis, nalUnitType, vps, sps);
141#else
142    xReadSEImessage(seis, nalUnitType, sps);
143#endif
144    /* SEI messages are an integer number of bytes, something has failed
145    * in the parsing if bitstream not byte-aligned */
146    assert(!m_pcBitstream->getNumBitsUntilByteAligned());
147  } while (m_pcBitstream->getNumBitsLeft() > 8);
148
149  UInt rbspTrailingBits;
150  READ_CODE(8, rbspTrailingBits, "rbsp_trailing_bits");
151  assert(rbspTrailingBits == 0x80);
152}
153
154#if LAYERS_NOT_PRESENT_SEI
155Void SEIReader::xReadSEImessage(SEIMessages& seis, const NalUnitType nalUnitType, TComVPS *vps, TComSPS *sps)
156#else
157Void SEIReader::xReadSEImessage(SEIMessages& seis, const NalUnitType nalUnitType, TComSPS *sps)
158#endif
159{
160#if ENC_DEC_TRACE
161  xTraceSEIHeader();
162#endif
163  Int payloadType = 0;
164  UInt val = 0;
165
166  do
167  {
168    READ_CODE (8, val, "payload_type");
169    payloadType += val;
170  } while (val==0xFF);
171
172  UInt payloadSize = 0;
173  do
174  {
175    READ_CODE (8, val, "payload_size");
176    payloadSize += val;
177  } while (val==0xFF);
178
179#if ENC_DEC_TRACE
180  xTraceSEIMessageType((SEI::PayloadType)payloadType);
181#endif
182
183  /* extract the payload for this single SEI message.
184   * This allows greater safety in erroneous parsing of an SEI message
185   * from affecting subsequent messages.
186   * After parsing the payload, bs needs to be restored as the primary
187   * bitstream.
188   */
189  TComInputBitstream *bs = getBitstream();
190  setBitstream(bs->extractSubstream(payloadSize * 8));
191
192  SEI *sei = NULL;
193
194  if(nalUnitType == NAL_UNIT_PREFIX_SEI)
195  {
196    switch (payloadType)
197    {
198    case SEI::USER_DATA_UNREGISTERED:
199      sei = new SEIuserDataUnregistered;
200      xParseSEIuserDataUnregistered((SEIuserDataUnregistered&) *sei, payloadSize);
201      break;
202    case SEI::ACTIVE_PARAMETER_SETS:
203      sei = new SEIActiveParameterSets; 
204      xParseSEIActiveParameterSets((SEIActiveParameterSets&) *sei, payloadSize); 
205      break; 
206    case SEI::DECODING_UNIT_INFO:
207      if (!sps)
208      {
209        printf ("Warning: Found Decoding unit SEI message, but no active SPS is available. Ignoring.");
210      }
211      else
212      {
213        sei = new SEIDecodingUnitInfo; 
214        xParseSEIDecodingUnitInfo((SEIDecodingUnitInfo&) *sei, payloadSize, sps);
215      }
216      break; 
217    case SEI::BUFFERING_PERIOD:
218      if (!sps)
219      {
220        printf ("Warning: Found Buffering period SEI message, but no active SPS is available. Ignoring.");
221      }
222      else
223      {
224        sei = new SEIBufferingPeriod;
225        xParseSEIBufferingPeriod((SEIBufferingPeriod&) *sei, payloadSize, sps);
226      }
227      break;
228    case SEI::PICTURE_TIMING:
229      if (!sps)
230      {
231        printf ("Warning: Found Picture timing SEI message, but no active SPS is available. Ignoring.");
232      }
233      else
234      {
235        sei = new SEIPictureTiming;
236        xParseSEIPictureTiming((SEIPictureTiming&)*sei, payloadSize, sps);
237      }
238      break;
239    case SEI::RECOVERY_POINT:
240      sei = new SEIRecoveryPoint;
241      xParseSEIRecoveryPoint((SEIRecoveryPoint&) *sei, payloadSize);
242      break;
243    case SEI::FRAME_PACKING:
244      sei = new SEIFramePacking;
245      xParseSEIFramePacking((SEIFramePacking&) *sei, payloadSize);
246      break;
247    case SEI::DISPLAY_ORIENTATION:
248      sei = new SEIDisplayOrientation;
249      xParseSEIDisplayOrientation((SEIDisplayOrientation&) *sei, payloadSize);
250      break;
251    case SEI::TEMPORAL_LEVEL0_INDEX:
252      sei = new SEITemporalLevel0Index;
253      xParseSEITemporalLevel0Index((SEITemporalLevel0Index&) *sei, payloadSize);
254      break;
255    case SEI::REGION_REFRESH_INFO:
256      sei = new SEIGradualDecodingRefreshInfo;
257      xParseSEIGradualDecodingRefreshInfo((SEIGradualDecodingRefreshInfo&) *sei, payloadSize);
258      break;
259    case SEI::TONE_MAPPING_INFO:
260      sei = new SEIToneMappingInfo;
261      xParseSEIToneMappingInfo((SEIToneMappingInfo&) *sei, payloadSize);
262      break;
263    case SEI::SOP_DESCRIPTION:
264      sei = new SEISOPDescription;
265      xParseSEISOPDescription((SEISOPDescription&) *sei, payloadSize);
266      break;
267    case SEI::SCALABLE_NESTING:
268      sei = new SEIScalableNesting;
269#if LAYERS_NOT_PRESENT_SEI
270      xParseSEIScalableNesting((SEIScalableNesting&) *sei, nalUnitType, payloadSize, vps, sps);
271#else
272      xParseSEIScalableNesting((SEIScalableNesting&) *sei, nalUnitType, payloadSize, sps);
273#endif
274#if SVC_EXTENSION
275#if LAYERS_NOT_PRESENT_SEI
276    case SEI::LAYERS_NOT_PRESENT:
277      if (!vps)
278      {
279        printf ("Warning: Found Layers not present SEI message, but no active VPS is available. Ignoring.");
280      }
281      else
282      {
283        sei = new SEILayersNotPresent;
284        xParseSEILayersNotPresent((SEILayersNotPresent&) *sei, payloadSize, vps);
285      }
286      break;
287#endif
288#if N0383_IL_CONSTRAINED_TILE_SETS_SEI
289    case SEI::INTER_LAYER_CONSTRAINED_TILE_SETS:
290      sei = new SEIInterLayerConstrainedTileSets;
291      xParseSEIInterLayerConstrainedTileSets((SEIInterLayerConstrainedTileSets&) *sei, payloadSize);
292      break;
293#endif
294#if SUB_BITSTREAM_PROPERTY_SEI
295   case SEI::SUB_BITSTREAM_PROPERTY:
296     sei = new SEISubBitstreamProperty;
297     xParseSEISubBitstreamProperty((SEISubBitstreamProperty&) *sei);
298     break;
299#endif
300#endif //SVC_EXTENSION
301      break;
302    default:
303      for (UInt i = 0; i < payloadSize; i++)
304      {
305        UInt seiByte;
306        READ_CODE (8, seiByte, "unknown prefix SEI payload byte");
307      }
308      printf ("Unknown prefix SEI message (payloadType = %d) was found!\n", payloadType);
309    }
310  }
311  else
312  {
313    switch (payloadType)
314    {
315      case SEI::USER_DATA_UNREGISTERED:
316        sei = new SEIuserDataUnregistered;
317        xParseSEIuserDataUnregistered((SEIuserDataUnregistered&) *sei, payloadSize);
318        break;
319      case SEI::DECODED_PICTURE_HASH:
320        sei = new SEIDecodedPictureHash;
321        xParseSEIDecodedPictureHash((SEIDecodedPictureHash&) *sei, payloadSize);
322        break;
323      default:
324        for (UInt i = 0; i < payloadSize; i++)
325        {
326          UInt seiByte;
327          READ_CODE (8, seiByte, "unknown suffix SEI payload byte");
328        }
329        printf ("Unknown suffix SEI message (payloadType = %d) was found!\n", payloadType);
330    }
331  }
332  if (sei != NULL)
333  {
334    seis.push_back(sei);
335  }
336
337  /* By definition the underlying bitstream terminates in a byte-aligned manner.
338   * 1. Extract all bar the last MIN(bitsremaining,nine) bits as reserved_payload_extension_data
339   * 2. Examine the final 8 bits to determine the payload_bit_equal_to_one marker
340   * 3. Extract the remainingreserved_payload_extension_data bits.
341   *
342   * If there are fewer than 9 bits available, extract them.
343   */
344  Int payloadBitsRemaining = getBitstream()->getNumBitsLeft();
345  if (payloadBitsRemaining) /* more_data_in_payload() */
346  {
347    for (; payloadBitsRemaining > 9; payloadBitsRemaining--)
348    {
349      UInt reservedPayloadExtensionData;
350      READ_CODE (1, reservedPayloadExtensionData, "reserved_payload_extension_data");
351    }
352
353    /* 2 */
354    Int finalBits = getBitstream()->peekBits(payloadBitsRemaining);
355    Int finalPayloadBits = 0;
356    for (Int mask = 0xff; finalBits & (mask >> finalPayloadBits); finalPayloadBits++)
357    {
358      continue;
359    }
360
361    /* 3 */
362    for (; payloadBitsRemaining > 9 - finalPayloadBits; payloadBitsRemaining--)
363    {
364      UInt reservedPayloadExtensionData;
365      READ_FLAG (reservedPayloadExtensionData, "reserved_payload_extension_data");
366    }
367
368    UInt dummy;
369    READ_FLAG (dummy, "payload_bit_equal_to_one"); payloadBitsRemaining--;
370    while (payloadBitsRemaining)
371    {
372      READ_FLAG (dummy, "payload_bit_equal_to_zero"); payloadBitsRemaining--;
373    }
374  }
375
376  /* restore primary bitstream for sei_message */
377  getBitstream()->deleteFifo();
378  delete getBitstream();
379  setBitstream(bs);
380}
381
382/**
383 * parse bitstream bs and unpack a user_data_unregistered SEI message
384 * of payloasSize bytes into sei.
385 */
386Void SEIReader::xParseSEIuserDataUnregistered(SEIuserDataUnregistered &sei, UInt payloadSize)
387{
388  assert(payloadSize >= 16);
389  UInt val;
390
391  for (UInt i = 0; i < 16; i++)
392  {
393    READ_CODE (8, val, "uuid_iso_iec_11578");
394    sei.uuid_iso_iec_11578[i] = val;
395  }
396
397  sei.userDataLength = payloadSize - 16;
398  if (!sei.userDataLength)
399  {
400    sei.userData = 0;
401    return;
402  }
403
404  sei.userData = new UChar[sei.userDataLength];
405  for (UInt i = 0; i < sei.userDataLength; i++)
406  {
407    READ_CODE (8, val, "user_data" );
408    sei.userData[i] = val;
409  }
410}
411
412/**
413 * parse bitstream bs and unpack a decoded picture hash SEI message
414 * of payloadSize bytes into sei.
415 */
416Void SEIReader::xParseSEIDecodedPictureHash(SEIDecodedPictureHash& sei, UInt /*payloadSize*/)
417{
418  UInt val;
419  READ_CODE (8, val, "hash_type");
420  sei.method = static_cast<SEIDecodedPictureHash::Method>(val);
421  for(Int yuvIdx = 0; yuvIdx < 3; yuvIdx++)
422  {
423    if(SEIDecodedPictureHash::MD5 == sei.method)
424    {
425      for (UInt i = 0; i < 16; i++)
426      {
427        READ_CODE(8, val, "picture_md5");
428        sei.digest[yuvIdx][i] = val;
429      }
430    }
431    else if(SEIDecodedPictureHash::CRC == sei.method)
432    {
433      READ_CODE(16, val, "picture_crc");
434      sei.digest[yuvIdx][0] = val >> 8 & 0xFF;
435      sei.digest[yuvIdx][1] = val & 0xFF;
436    }
437    else if(SEIDecodedPictureHash::CHECKSUM == sei.method)
438    {
439      READ_CODE(32, val, "picture_checksum");
440      sei.digest[yuvIdx][0] = (val>>24) & 0xff;
441      sei.digest[yuvIdx][1] = (val>>16) & 0xff;
442      sei.digest[yuvIdx][2] = (val>>8)  & 0xff;
443      sei.digest[yuvIdx][3] =  val      & 0xff;
444    }
445  }
446}
447Void SEIReader::xParseSEIActiveParameterSets(SEIActiveParameterSets& sei, UInt /*payloadSize*/)
448{
449  UInt val; 
450  READ_CODE(4, val, "active_vps_id");      sei.activeVPSId = val; 
451  READ_FLAG( val, "full_random_access_flag");  sei.m_fullRandomAccessFlag = val ? true : false;
452  READ_FLAG( val, "no_param_set_update_flag"); sei.m_noParamSetUpdateFlag = val ? true : false;
453  READ_UVLC(   val, "num_sps_ids_minus1"); sei.numSpsIdsMinus1 = val;
454
455  sei.activeSeqParamSetId.resize(sei.numSpsIdsMinus1 + 1);
456  for (Int i=0; i < (sei.numSpsIdsMinus1 + 1); i++)
457  {
458    READ_UVLC(val, "active_seq_param_set_id");  sei.activeSeqParamSetId[i] = val; 
459  }
460
461  UInt uibits = m_pcBitstream->getNumBitsUntilByteAligned(); 
462 
463  while(uibits--)
464  {
465    READ_FLAG(val, "alignment_bit");
466  }
467}
468
469Void SEIReader::xParseSEIDecodingUnitInfo(SEIDecodingUnitInfo& sei, UInt /*payloadSize*/, TComSPS *sps)
470{
471  UInt val;
472  READ_UVLC(val, "decoding_unit_idx");
473  sei.m_decodingUnitIdx = val;
474
475  TComVUI *vui = sps->getVuiParameters();
476  if(vui->getHrdParameters()->getSubPicCpbParamsInPicTimingSEIFlag())
477  {
478    READ_CODE( ( vui->getHrdParameters()->getDuCpbRemovalDelayLengthMinus1() + 1 ), val, "du_spt_cpb_removal_delay");
479    sei.m_duSptCpbRemovalDelay = val;
480  }
481  else
482  {
483    sei.m_duSptCpbRemovalDelay = 0;
484  }
485  READ_FLAG( val, "dpb_output_du_delay_present_flag"); sei.m_dpbOutputDuDelayPresentFlag = val ? true : false;
486  if(sei.m_dpbOutputDuDelayPresentFlag)
487  {
488    READ_CODE(vui->getHrdParameters()->getDpbOutputDelayDuLengthMinus1() + 1, val, "pic_spt_dpb_output_du_delay"); 
489    sei.m_picSptDpbOutputDuDelay = val;
490  }
491  xParseByteAlign();
492}
493
494Void SEIReader::xParseSEIBufferingPeriod(SEIBufferingPeriod& sei, UInt /*payloadSize*/, TComSPS *sps)
495{
496  Int i, nalOrVcl;
497  UInt code;
498
499  TComVUI *pVUI = sps->getVuiParameters();
500  TComHRD *pHRD = pVUI->getHrdParameters();
501
502  READ_UVLC( code, "bp_seq_parameter_set_id" );                         sei.m_bpSeqParameterSetId     = code;
503  if( !pHRD->getSubPicCpbParamsPresentFlag() )
504  {
505    READ_FLAG( code, "irap_cpb_params_present_flag" );                   sei.m_rapCpbParamsPresentFlag = code;
506  }
507  if( sei.m_rapCpbParamsPresentFlag )
508  {
509    READ_CODE( pHRD->getCpbRemovalDelayLengthMinus1() + 1, code, "cpb_delay_offset" );      sei.m_cpbDelayOffset = code;
510    READ_CODE( pHRD->getDpbOutputDelayLengthMinus1()  + 1, code, "dpb_delay_offset" );      sei.m_dpbDelayOffset = code;
511  }
512  //read splicing flag and cpb_removal_delay_delta
513  READ_FLAG( code, "concatenation_flag"); 
514  sei.m_concatenationFlag = code;
515  READ_CODE( ( pHRD->getCpbRemovalDelayLengthMinus1() + 1 ), code, "au_cpb_removal_delay_delta_minus1" );
516  sei.m_auCpbRemovalDelayDelta = code + 1;
517  for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ )
518  {
519    if( ( ( nalOrVcl == 0 ) && ( pHRD->getNalHrdParametersPresentFlag() ) ) ||
520        ( ( nalOrVcl == 1 ) && ( pHRD->getVclHrdParametersPresentFlag() ) ) )
521    {
522      for( i = 0; i < ( pHRD->getCpbCntMinus1( 0 ) + 1 ); i ++ )
523      {
524        READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_cpb_removal_delay" );
525        sei.m_initialCpbRemovalDelay[i][nalOrVcl] = code;
526        READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_cpb_removal_delay_offset" );
527        sei.m_initialCpbRemovalDelayOffset[i][nalOrVcl] = code;
528        if( pHRD->getSubPicCpbParamsPresentFlag() || sei.m_rapCpbParamsPresentFlag )
529        {
530          READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_alt_cpb_removal_delay" );
531          sei.m_initialAltCpbRemovalDelay[i][nalOrVcl] = code;
532          READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_alt_cpb_removal_delay_offset" );
533          sei.m_initialAltCpbRemovalDelayOffset[i][nalOrVcl] = code;
534        }
535      }
536    }
537  }
538  xParseByteAlign();
539}
540Void SEIReader::xParseSEIPictureTiming(SEIPictureTiming& sei, UInt /*payloadSize*/, TComSPS *sps)
541{
542  Int i;
543  UInt code;
544
545  TComVUI *vui = sps->getVuiParameters();
546  TComHRD *hrd = vui->getHrdParameters();
547
548  if( vui->getFrameFieldInfoPresentFlag() )
549  {
550    READ_CODE( 4, code, "pic_struct" );             sei.m_picStruct            = code;
551    READ_CODE( 2, code, "source_scan_type" );       sei.m_sourceScanType = code;
552    READ_FLAG(    code, "duplicate_flag" );         sei.m_duplicateFlag        = ( code == 1 ? true : false );
553  }
554
555  if( hrd->getCpbDpbDelaysPresentFlag())
556  {
557    READ_CODE( ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), code, "au_cpb_removal_delay_minus1" );
558    sei.m_auCpbRemovalDelay = code + 1;
559    READ_CODE( ( hrd->getDpbOutputDelayLengthMinus1() + 1 ), code, "pic_dpb_output_delay" );
560    sei.m_picDpbOutputDelay = code;
561
562    if(hrd->getSubPicCpbParamsPresentFlag())
563    {
564      READ_CODE(hrd->getDpbOutputDelayDuLengthMinus1()+1, code, "pic_dpb_output_du_delay" );
565      sei.m_picDpbOutputDuDelay = code;
566    }
567    if( hrd->getSubPicCpbParamsPresentFlag() && hrd->getSubPicCpbParamsInPicTimingSEIFlag() )
568    {
569      READ_UVLC( code, "num_decoding_units_minus1");
570      sei.m_numDecodingUnitsMinus1 = code;
571      READ_FLAG( code, "du_common_cpb_removal_delay_flag" );
572      sei.m_duCommonCpbRemovalDelayFlag = code;
573      if( sei.m_duCommonCpbRemovalDelayFlag )
574      {
575        READ_CODE( ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), code, "du_common_cpb_removal_delay_minus1" );
576        sei.m_duCommonCpbRemovalDelayMinus1 = code;
577      }
578      if( sei.m_numNalusInDuMinus1 != NULL )
579      {
580        delete sei.m_numNalusInDuMinus1;
581      }
582      sei.m_numNalusInDuMinus1 = new UInt[ ( sei.m_numDecodingUnitsMinus1 + 1 ) ];
583      if( sei.m_duCpbRemovalDelayMinus1  != NULL )
584      {
585        delete sei.m_duCpbRemovalDelayMinus1;
586      }
587      sei.m_duCpbRemovalDelayMinus1  = new UInt[ ( sei.m_numDecodingUnitsMinus1 + 1 ) ];
588
589      for( i = 0; i <= sei.m_numDecodingUnitsMinus1; i ++ )
590      {
591        READ_UVLC( code, "num_nalus_in_du_minus1");
592        sei.m_numNalusInDuMinus1[ i ] = code;
593        if( ( !sei.m_duCommonCpbRemovalDelayFlag ) && ( i < sei.m_numDecodingUnitsMinus1 ) )
594        {
595          READ_CODE( ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), code, "du_cpb_removal_delay_minus1" );
596          sei.m_duCpbRemovalDelayMinus1[ i ] = code;
597        }
598      }
599    }
600  }
601  xParseByteAlign();
602}
603Void SEIReader::xParseSEIRecoveryPoint(SEIRecoveryPoint& sei, UInt /*payloadSize*/)
604{
605  Int  iCode;
606  UInt uiCode;
607  READ_SVLC( iCode,  "recovery_poc_cnt" );      sei.m_recoveryPocCnt     = iCode;
608  READ_FLAG( uiCode, "exact_matching_flag" );   sei.m_exactMatchingFlag  = uiCode;
609  READ_FLAG( uiCode, "broken_link_flag" );      sei.m_brokenLinkFlag     = uiCode;
610  xParseByteAlign();
611}
612Void SEIReader::xParseSEIFramePacking(SEIFramePacking& sei, UInt /*payloadSize*/)
613{
614  UInt val;
615  READ_UVLC( val, "frame_packing_arrangement_id" );                 sei.m_arrangementId = val;
616  READ_FLAG( val, "frame_packing_arrangement_cancel_flag" );        sei.m_arrangementCancelFlag = val;
617
618  if ( !sei.m_arrangementCancelFlag )
619  {
620    READ_CODE( 7, val, "frame_packing_arrangement_type" );          sei.m_arrangementType = val;
621    assert((sei.m_arrangementType > 2) && (sei.m_arrangementType < 6) );
622    READ_FLAG( val, "quincunx_sampling_flag" );                     sei.m_quincunxSamplingFlag = val;
623
624    READ_CODE( 6, val, "content_interpretation_type" );             sei.m_contentInterpretationType = val;
625    READ_FLAG( val, "spatial_flipping_flag" );                      sei.m_spatialFlippingFlag = val;
626    READ_FLAG( val, "frame0_flipped_flag" );                        sei.m_frame0FlippedFlag = val;
627    READ_FLAG( val, "field_views_flag" );                           sei.m_fieldViewsFlag = val;
628    READ_FLAG( val, "current_frame_is_frame0_flag" );               sei.m_currentFrameIsFrame0Flag = val;
629    READ_FLAG( val, "frame0_self_contained_flag" );                 sei.m_frame0SelfContainedFlag = val;
630    READ_FLAG( val, "frame1_self_contained_flag" );                 sei.m_frame1SelfContainedFlag = val;
631
632    if ( sei.m_quincunxSamplingFlag == 0 && sei.m_arrangementType != 5)
633    {
634      READ_CODE( 4, val, "frame0_grid_position_x" );                sei.m_frame0GridPositionX = val;
635      READ_CODE( 4, val, "frame0_grid_position_y" );                sei.m_frame0GridPositionY = val;
636      READ_CODE( 4, val, "frame1_grid_position_x" );                sei.m_frame1GridPositionX = val;
637      READ_CODE( 4, val, "frame1_grid_position_y" );                sei.m_frame1GridPositionY = val;
638    }
639
640    READ_CODE( 8, val, "frame_packing_arrangement_reserved_byte" );   sei.m_arrangementReservedByte = val;
641    READ_FLAG( val,  "frame_packing_arrangement_persistence_flag" );  sei.m_arrangementPersistenceFlag = val ? true : false;
642  }
643  READ_FLAG( val, "upsampled_aspect_ratio" );                       sei.m_upsampledAspectRatio = val;
644
645  xParseByteAlign();
646}
647
648Void SEIReader::xParseSEIDisplayOrientation(SEIDisplayOrientation& sei, UInt /*payloadSize*/)
649{
650  UInt val;
651  READ_FLAG( val,       "display_orientation_cancel_flag" );       sei.cancelFlag            = val;
652  if( !sei.cancelFlag ) 
653  {
654    READ_FLAG( val,     "hor_flip" );                              sei.horFlip               = val;
655    READ_FLAG( val,     "ver_flip" );                              sei.verFlip               = val;
656    READ_CODE( 16, val, "anticlockwise_rotation" );                sei.anticlockwiseRotation = val;
657    READ_FLAG( val,     "display_orientation_persistence_flag" );  sei.persistenceFlag       = val;
658  }
659  xParseByteAlign();
660}
661
662Void SEIReader::xParseSEITemporalLevel0Index(SEITemporalLevel0Index& sei, UInt /*payloadSize*/)
663{
664  UInt val;
665  READ_CODE ( 8, val, "tl0_idx" );  sei.tl0Idx = val;
666  READ_CODE ( 8, val, "rap_idx" );  sei.rapIdx = val;
667  xParseByteAlign();
668}
669
670Void SEIReader::xParseSEIGradualDecodingRefreshInfo(SEIGradualDecodingRefreshInfo& sei, UInt /*payloadSize*/)
671{
672  UInt val;
673  READ_FLAG( val, "gdr_foreground_flag" ); sei.m_gdrForegroundFlag = val ? 1 : 0;
674  xParseByteAlign();
675}
676
677Void SEIReader::xParseSEIToneMappingInfo(SEIToneMappingInfo& sei, UInt /*payloadSize*/)
678{
679  Int i;
680  UInt val;
681  READ_UVLC( val, "tone_map_id" );                         sei.m_toneMapId = val;
682  READ_FLAG( val, "tone_map_cancel_flag" );                sei.m_toneMapCancelFlag = val;
683
684  if ( !sei.m_toneMapCancelFlag )
685  {
686    READ_FLAG( val, "tone_map_persistence_flag" );         sei.m_toneMapPersistenceFlag = val; 
687    READ_CODE( 8, val, "coded_data_bit_depth" );           sei.m_codedDataBitDepth = val;
688    READ_CODE( 8, val, "target_bit_depth" );               sei.m_targetBitDepth = val;
689    READ_UVLC( val, "model_id" );                          sei.m_modelId = val; 
690    switch(sei.m_modelId)
691    {
692    case 0:
693      {
694        READ_CODE( 32, val, "min_value" );                 sei.m_minValue = val;
695        READ_CODE( 32, val, "max_value" );                 sei.m_maxValue = val;
696        break;
697      }
698    case 1:
699      {
700        READ_CODE( 32, val, "sigmoid_midpoint" );          sei.m_sigmoidMidpoint = val;
701        READ_CODE( 32, val, "sigmoid_width" );             sei.m_sigmoidWidth = val;
702        break;
703      }
704    case 2:
705      {
706        UInt num = 1u << sei.m_targetBitDepth;
707        sei.m_startOfCodedInterval.resize(num+1);
708        for(i = 0; i < num; i++)
709        {
710          READ_CODE( ((( sei.m_codedDataBitDepth + 7 ) >> 3 ) << 3), val, "start_of_coded_interval" );
711          sei.m_startOfCodedInterval[i] = val;
712        }
713        sei.m_startOfCodedInterval[num] = 1u << sei.m_codedDataBitDepth;
714        break;
715      }
716    case 3:
717      {
718        READ_CODE( 16, val,  "num_pivots" );                       sei.m_numPivots = val;
719        sei.m_codedPivotValue.resize(sei.m_numPivots);
720        sei.m_targetPivotValue.resize(sei.m_numPivots);
721        for(i = 0; i < sei.m_numPivots; i++ )
722        {
723          READ_CODE( ((( sei.m_codedDataBitDepth + 7 ) >> 3 ) << 3), val, "coded_pivot_value" );
724          sei.m_codedPivotValue[i] = val;
725          READ_CODE( ((( sei.m_targetBitDepth + 7 ) >> 3 ) << 3),    val, "target_pivot_value" );
726          sei.m_targetPivotValue[i] = val;
727        }
728        break;
729      }
730    case 4:
731      {
732        READ_CODE( 8, val, "camera_iso_speed_idc" );                     sei.m_cameraIsoSpeedValue = val;
733        if( sei.m_cameraIsoSpeedValue == 255) //Extended_ISO
734        {
735          READ_CODE( 32,   val,   "camera_iso_speed_value" );            sei.m_cameraIsoSpeedValue = val;
736        }
737        READ_FLAG( val, "exposure_compensation_value_sign_flag" );       sei.m_exposureCompensationValueSignFlag = val;
738        READ_CODE( 16, val, "exposure_compensation_value_numerator" );   sei.m_exposureCompensationValueNumerator = val;
739        READ_CODE( 16, val, "exposure_compensation_value_denom_idc" );   sei.m_exposureCompensationValueDenomIdc = val;
740        READ_CODE( 32, val, "ref_screen_luminance_white" );              sei.m_refScreenLuminanceWhite = val;
741        READ_CODE( 32, val, "extended_range_white_level" );              sei.m_extendedRangeWhiteLevel = val;
742        READ_CODE( 16, val, "nominal_black_level_luma_code_value" );     sei.m_nominalBlackLevelLumaCodeValue = val;
743        READ_CODE( 16, val, "nominal_white_level_luma_code_value" );     sei.m_nominalWhiteLevelLumaCodeValue= val;
744        READ_CODE( 16, val, "extended_white_level_luma_code_value" );    sei.m_extendedWhiteLevelLumaCodeValue = val;
745        break;
746      }
747    default:
748      {
749        assert(!"Undefined SEIToneMapModelId");
750        break;
751      }
752    }//switch model id
753  }// if(!sei.m_toneMapCancelFlag)
754
755  xParseByteAlign();
756}
757
758Void SEIReader::xParseSEISOPDescription(SEISOPDescription &sei, UInt payloadSize)
759{
760  Int iCode;
761  UInt uiCode;
762
763  READ_UVLC( uiCode,           "sop_seq_parameter_set_id"            ); sei.m_sopSeqParameterSetId = uiCode;
764  READ_UVLC( uiCode,           "num_pics_in_sop_minus1"              ); sei.m_numPicsInSopMinus1 = uiCode;
765  for (UInt i = 0; i <= sei.m_numPicsInSopMinus1; i++)
766  {
767    READ_CODE( 6, uiCode,                     "sop_desc_vcl_nalu_type" );  sei.m_sopDescVclNaluType[i] = uiCode;
768    READ_CODE( 3, sei.m_sopDescTemporalId[i], "sop_desc_temporal_id"   );  sei.m_sopDescTemporalId[i] = uiCode;
769    if (sei.m_sopDescVclNaluType[i] != NAL_UNIT_CODED_SLICE_IDR_W_RADL && sei.m_sopDescVclNaluType[i] != NAL_UNIT_CODED_SLICE_IDR_N_LP)
770    {
771      READ_UVLC( sei.m_sopDescStRpsIdx[i],    "sop_desc_st_rps_idx"    ); sei.m_sopDescStRpsIdx[i] = uiCode;
772    }
773    if (i > 0)
774    {
775      READ_SVLC( iCode,                       "sop_desc_poc_delta"     ); sei.m_sopDescPocDelta[i] = iCode;
776    }
777  }
778
779  xParseByteAlign();
780}
781
782#if LAYERS_NOT_PRESENT_SEI
783Void SEIReader::xParseSEIScalableNesting(SEIScalableNesting& sei, const NalUnitType nalUnitType, UInt payloadSize, TComVPS *vps, TComSPS *sps)
784#else
785Void SEIReader::xParseSEIScalableNesting(SEIScalableNesting& sei, const NalUnitType nalUnitType, UInt payloadSize, TComSPS *sps)
786#endif
787{
788  UInt uiCode;
789  SEIMessages seis;
790
791  READ_FLAG( uiCode,            "bitstream_subset_flag"         ); sei.m_bitStreamSubsetFlag = uiCode;
792  READ_FLAG( uiCode,            "nesting_op_flag"               ); sei.m_nestingOpFlag = uiCode;
793  if (sei.m_nestingOpFlag)
794  {
795    READ_FLAG( uiCode,            "default_op_flag"               ); sei.m_defaultOpFlag = uiCode;
796    READ_UVLC( uiCode,            "nesting_num_ops_minus1"        ); sei.m_nestingNumOpsMinus1 = uiCode;
797    for (UInt i = sei.m_defaultOpFlag; i <= sei.m_nestingNumOpsMinus1; i++)
798    {
799      READ_CODE( 3,        uiCode,  "nesting_max_temporal_id_plus1"   ); sei.m_nestingMaxTemporalIdPlus1[i] = uiCode;
800      READ_UVLC( uiCode,            "nesting_op_idx"                  ); sei.m_nestingOpIdx[i] = uiCode;
801    }
802  }
803  else
804  {
805    READ_FLAG( uiCode,            "all_layers_flag"               ); sei.m_allLayersFlag       = uiCode;
806    if (!sei.m_allLayersFlag)
807    {
808      READ_CODE( 3,        uiCode,  "nesting_no_op_max_temporal_id_plus1"  ); sei.m_nestingNoOpMaxTemporalIdPlus1 = uiCode;
809      READ_UVLC( uiCode,            "nesting_num_layers_minus1"            ); sei.m_nestingNumLayersMinus1        = uiCode;
810      for (UInt i = 0; i <= sei.m_nestingNumLayersMinus1; i++)
811      {
812        READ_CODE( 6,           uiCode,     "nesting_layer_id"      ); sei.m_nestingLayerId[i]   = uiCode;
813      }
814    }
815  }
816
817  // byte alignment
818  while ( m_pcBitstream->getNumBitsRead() % 8 != 0 )
819  {
820    UInt code;
821    READ_FLAG( code, "nesting_zero_bit" );
822  }
823
824  sei.m_callerOwnsSEIs = false;
825
826  // read nested SEI messages
827  do {
828#if LAYERS_NOT_PRESENT_SEI
829    xReadSEImessage(sei.m_nestedSEIs, nalUnitType, vps, sps);
830#else
831    xReadSEImessage(sei.m_nestedSEIs, nalUnitType, sps);
832#endif
833  } while (m_pcBitstream->getNumBitsLeft() > 8);
834
835}
836
837Void SEIReader::xParseByteAlign()
838{
839  UInt code;
840  if( m_pcBitstream->getNumBitsRead() % 8 != 0 )
841  {
842    READ_FLAG( code, "bit_equal_to_one" );          assert( code == 1 );
843  }
844  while( m_pcBitstream->getNumBitsRead() % 8 != 0 )
845  {
846    READ_FLAG( code, "bit_equal_to_zero" );         assert( code == 0 );
847  }
848}
849
850#if SVC_EXTENSION
851#if LAYERS_NOT_PRESENT_SEI
852Void SEIReader::xParseSEILayersNotPresent(SEILayersNotPresent &sei, UInt payloadSize, TComVPS *vps)
853{
854  UInt uiCode;
855  UInt i = 0;
856
857  READ_UVLC( uiCode,           "lp_sei_active_vps_id" ); sei.m_activeVpsId = uiCode;
858  assert(vps->getVPSId() == sei.m_activeVpsId);
859  sei.m_vpsMaxLayers = vps->getMaxLayers();
860  for (; i < sei.m_vpsMaxLayers; i++)
861  {
862    READ_FLAG( uiCode,         "layer_not_present_flag"   ); sei.m_layerNotPresentFlag[i] = uiCode ? true : false;
863  }
864  for (; i < MAX_LAYERS; i++)
865  {
866    sei.m_layerNotPresentFlag[i] = false;
867  }
868  xParseByteAlign();
869}
870#endif
871#if N0383_IL_CONSTRAINED_TILE_SETS_SEI
872Void SEIReader::xParseSEIInterLayerConstrainedTileSets (SEIInterLayerConstrainedTileSets &sei, UInt payloadSize)
873{
874  UInt uiCode;
875
876  READ_FLAG( uiCode, "il_all_tiles_exact_sample_value_match_flag"   ); sei.m_ilAllTilesExactSampleValueMatchFlag = uiCode;
877  READ_FLAG( uiCode, "il_one_tile_per_tile_set_flag"                ); sei.m_ilOneTilePerTileSetFlag = uiCode;
878  if( !sei.m_ilOneTilePerTileSetFlag )
879  {
880    READ_UVLC( uiCode, "il_num_sets_in_message_minus1"                ); sei.m_ilNumSetsInMessageMinus1 = uiCode;
881    if( sei.m_ilNumSetsInMessageMinus1 )
882    {
883      READ_FLAG( uiCode, "skipped_tile_set_present_flag"                ); sei.m_skippedTileSetPresentFlag = uiCode;
884    }
885    else
886    {
887      sei.m_skippedTileSetPresentFlag = false;
888    }
889    UInt numSignificantSets = sei.m_ilNumSetsInMessageMinus1 - (sei.m_skippedTileSetPresentFlag ? 1 : 0) + 1;
890    for( UInt i = 0; i < numSignificantSets; i++ )
891    {
892      READ_UVLC( uiCode, "ilcts_id"                                     ); sei.m_ilctsId[i] = uiCode;
893      READ_UVLC( uiCode, "il_num_tile_rects_in_set_minus1"              ) ;sei.m_ilNumTileRectsInSetMinus1[i] = uiCode;
894      for( UInt j = 0; j <= sei.m_ilNumTileRectsInSetMinus1[i]; j++ )
895      {
896        READ_UVLC( uiCode, "il_top_left_tile_index"                       ); sei.m_ilTopLeftTileIndex[i][j] = uiCode;
897        READ_UVLC( uiCode, "il_bottom_right_tile_index"                   ); sei.m_ilBottomRightTileIndex[i][j] = uiCode;
898      }
899      READ_CODE( 2, uiCode, "ilc_idc"                                   ); sei.m_ilcIdc[i] = uiCode;
900      if( sei.m_ilAllTilesExactSampleValueMatchFlag )
901      {
902        READ_FLAG( uiCode, "il_exact_sample_value_match_flag"             ); sei.m_ilExactSampleValueMatchFlag[i] = uiCode;
903      }
904    }
905  }
906  else
907  {
908    READ_CODE( 2, uiCode, "all_tiles_ilc_idc"                         ); sei.m_allTilesIlcIdc = uiCode;
909  }
910
911  xParseByteAlign();
912}
913#endif
914#if SUB_BITSTREAM_PROPERTY_SEI
915Void SEIReader::xParseSEISubBitstreamProperty(SEISubBitstreamProperty &sei)
916{
917  UInt uiCode;
918  READ_CODE( 4, uiCode, "active_vps_id" );                      sei.m_activeVpsId = uiCode;
919  READ_UVLC(    uiCode, "num_additional_sub_streams_minus1" );  sei.m_numAdditionalSubStreams = uiCode + 1;
920
921  for( Int i = 0; i < sei.m_numAdditionalSubStreams; i++ )
922  {
923    READ_CODE(  2, uiCode, "sub_bitstream_mode[i]"           ); sei.m_subBitstreamMode[i] = uiCode;
924    READ_UVLC(     uiCode, "output_layer_set_idx_to_vps[i]"  ); sei.m_outputLayerSetIdxToVps[i] = uiCode;
925    READ_CODE(  3, uiCode, "highest_sub_layer_id[i]"         ); sei.m_highestSublayerId[i] = uiCode;
926    READ_CODE( 16, uiCode, "avg_bit_rate[i]"                 ); sei.m_avgBitRate[i] = uiCode;
927    READ_CODE( 16, uiCode, "max_bit_rate[i]"                 ); sei.m_maxBitRate[i] = uiCode;
928  }
929  xParseByteAlign();
930}
931#endif
932#endif //SVC_EXTENSION
933
934//! \}
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