1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
|
/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*------------------------------------------------------------------------------
Table of contents
1. Include headers
2. External compiler flags
3. Module defines
4. Local function prototypes
5. Functions
h264bsdInitStorage
h264bsdStoreSeqParamSet
h264bsdStorePicParamSet
h264bsdActivateParamSets
h264bsdResetStorage
h264bsdIsStartOfPicture
h264bsdIsEndOfPicture
h264bsdComputeSliceGroupMap
h264bsdCheckAccessUnitBoundary
CheckPps
h264bsdValidParamSets
------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------
1. Include headers
------------------------------------------------------------------------------*/
#include "h264bsd_storage.h"
#include "h264bsd_util.h"
#include "h264bsd_neighbour.h"
#include "h264bsd_slice_group_map.h"
#include "h264bsd_dpb.h"
#include "h264bsd_nal_unit.h"
#include "h264bsd_slice_header.h"
#include "h264bsd_seq_param_set.h"
/*------------------------------------------------------------------------------
2. External compiler flags
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
3. Module defines
------------------------------------------------------------------------------*/
/*------------------------------------------------------------------------------
4. Local function prototypes
------------------------------------------------------------------------------*/
static u32 CheckPps(picParamSet_t *pps, seqParamSet_t *sps);
/*------------------------------------------------------------------------------
Function name: h264bsdInitStorage
Functional description:
Initialize storage structure. Sets contents of the storage to '0'
except for the active parameter set ids, which are initialized
to invalid values.
Inputs:
Outputs:
pStorage initialized data stored here
Returns:
none
------------------------------------------------------------------------------*/
void h264bsdInitStorage(storage_t *pStorage)
{
/* Variables */
/* Code */
ASSERT(pStorage);
H264SwDecMemset(pStorage, 0, sizeof(storage_t));
pStorage->activeSpsId = MAX_NUM_SEQ_PARAM_SETS;
pStorage->activePpsId = MAX_NUM_PIC_PARAM_SETS;
pStorage->aub->firstCallFlag = HANTRO_TRUE;
}
/*------------------------------------------------------------------------------
Function: h264bsdStoreSeqParamSet
Functional description:
Store sequence parameter set into the storage. If active SPS is
overwritten -> check if contents changes and if it does, set
parameters to force reactivation of parameter sets
Inputs:
pStorage pointer to storage structure
pSeqParamSet pointer to param set to be stored
Outputs:
none
Returns:
HANTRO_OK success
MEMORY_ALLOCATION_ERROR failure in memory allocation
------------------------------------------------------------------------------*/
u32 h264bsdStoreSeqParamSet(storage_t *pStorage, seqParamSet_t *pSeqParamSet)
{
/* Variables */
u32 id;
/* Code */
ASSERT(pStorage);
ASSERT(pSeqParamSet);
ASSERT(pSeqParamSet->seqParameterSetId < MAX_NUM_SEQ_PARAM_SETS);
id = pSeqParamSet->seqParameterSetId;
/* seq parameter set with id not used before -> allocate memory */
if (pStorage->sps[id] == NULL)
{
ALLOCATE(pStorage->sps[id], 1, seqParamSet_t);
if (pStorage->sps[id] == NULL)
return(MEMORY_ALLOCATION_ERROR);
}
/* sequence parameter set with id equal to id of active sps */
else if (id == pStorage->activeSpsId)
{
/* if seq parameter set contents changes
* -> overwrite and re-activate when next IDR picture decoded
* ids of active param sets set to invalid values to force
* re-activation. Memories allocated for old sps freed
* otherwise free memeries allocated for just decoded sps and
* continue */
if (h264bsdCompareSeqParamSets(pSeqParamSet, pStorage->activeSps) != 0)
{
FREE(pStorage->sps[id]->offsetForRefFrame);
FREE(pStorage->sps[id]->vuiParameters);
pStorage->activeSpsId = MAX_NUM_SEQ_PARAM_SETS + 1;
pStorage->activePpsId = MAX_NUM_PIC_PARAM_SETS + 1;
pStorage->activeSps = NULL;
pStorage->activePps = NULL;
}
else
{
FREE(pSeqParamSet->offsetForRefFrame);
FREE(pSeqParamSet->vuiParameters);
return(HANTRO_OK);
}
}
/* overwrite seq param set other than active one -> free memories
* allocated for old param set */
else
{
FREE(pStorage->sps[id]->offsetForRefFrame);
FREE(pStorage->sps[id]->vuiParameters);
}
*pStorage->sps[id] = *pSeqParamSet;
return(HANTRO_OK);
}
/*------------------------------------------------------------------------------
Function: h264bsdStorePicParamSet
Functional description:
Store picture parameter set into the storage. If active PPS is
overwritten -> check if active SPS changes and if it does -> set
parameters to force reactivation of parameter sets
Inputs:
pStorage pointer to storage structure
pPicParamSet pointer to param set to be stored
Outputs:
none
Returns:
HANTRO_OK success
MEMORY_ALLOCATION_ERROR failure in memory allocation
------------------------------------------------------------------------------*/
u32 h264bsdStorePicParamSet(storage_t *pStorage, picParamSet_t *pPicParamSet)
{
/* Variables */
u32 id;
/* Code */
ASSERT(pStorage);
ASSERT(pPicParamSet);
ASSERT(pPicParamSet->picParameterSetId < MAX_NUM_PIC_PARAM_SETS);
ASSERT(pPicParamSet->seqParameterSetId < MAX_NUM_SEQ_PARAM_SETS);
id = pPicParamSet->picParameterSetId;
/* pic parameter set with id not used before -> allocate memory */
if (pStorage->pps[id] == NULL)
{
ALLOCATE(pStorage->pps[id], 1, picParamSet_t);
if (pStorage->pps[id] == NULL)
return(MEMORY_ALLOCATION_ERROR);
}
/* picture parameter set with id equal to id of active pps */
else if (id == pStorage->activePpsId)
{
/* check whether seq param set changes, force re-activation of
* param set if it does. Set activeSpsId to invalid value to
* accomplish this */
if (pPicParamSet->seqParameterSetId != pStorage->activeSpsId)
{
pStorage->activePpsId = MAX_NUM_PIC_PARAM_SETS + 1;
}
/* free memories allocated for old param set */
FREE(pStorage->pps[id]->runLength);
FREE(pStorage->pps[id]->topLeft);
FREE(pStorage->pps[id]->bottomRight);
FREE(pStorage->pps[id]->sliceGroupId);
}
/* overwrite pic param set other than active one -> free memories
* allocated for old param set */
else
{
FREE(pStorage->pps[id]->runLength);
FREE(pStorage->pps[id]->topLeft);
FREE(pStorage->pps[id]->bottomRight);
FREE(pStorage->pps[id]->sliceGroupId);
}
*pStorage->pps[id] = *pPicParamSet;
return(HANTRO_OK);
}
/*------------------------------------------------------------------------------
Function: h264bsdActivateParamSets
Functional description:
Activate certain SPS/PPS combination. This function shall be
called in the beginning of each picture. Picture parameter set
can be changed as wanted, but sequence parameter set may only be
changed when the starting picture is an IDR picture.
When new SPS is activated the function allocates memory for
macroblock storages and slice group map and (re-)initializes the
decoded picture buffer. If this is not the first activation the old
allocations are freed and FreeDpb called before new allocations.
Inputs:
pStorage pointer to storage data structure
ppsId identifies the PPS to be activated, SPS id obtained
from the PPS
isIdr flag to indicate if the picture is an IDR picture
Outputs:
none
Returns:
HANTRO_OK success
HANTRO_NOK non-existing or invalid param set combination,
trying to change SPS with non-IDR picture
MEMORY_ALLOCATION_ERROR failure in memory allocation
------------------------------------------------------------------------------*/
u32 h264bsdActivateParamSets(storage_t *pStorage, u32 ppsId, u32 isIdr)
{
/* Variables */
u32 tmp;
u32 flag;
/* Code */
ASSERT(pStorage);
ASSERT(ppsId < MAX_NUM_PIC_PARAM_SETS);
/* check that pps and corresponding sps exist */
if ( (pStorage->pps[ppsId] == NULL) ||
(pStorage->sps[pStorage->pps[ppsId]->seqParameterSetId] == NULL) )
{
return(HANTRO_NOK);
}
/* check that pps parameters do not violate picture size constraints */
tmp = CheckPps(pStorage->pps[ppsId],
pStorage->sps[pStorage->pps[ppsId]->seqParameterSetId]);
if (tmp != HANTRO_OK)
return(tmp);
/* first activation part1 */
if (pStorage->activePpsId == MAX_NUM_PIC_PARAM_SETS)
{
pStorage->activePpsId = ppsId;
pStorage->activePps = pStorage->pps[ppsId];
pStorage->activeSpsId = pStorage->activePps->seqParameterSetId;
pStorage->activeSps = pStorage->sps[pStorage->activeSpsId];
pStorage->picSizeInMbs =
pStorage->activeSps->picWidthInMbs *
pStorage->activeSps->picHeightInMbs;
pStorage->currImage->width = pStorage->activeSps->picWidthInMbs;
pStorage->currImage->height = pStorage->activeSps->picHeightInMbs;
pStorage->pendingActivation = HANTRO_TRUE;
}
/* first activation part2 */
else if (pStorage->pendingActivation)
{
pStorage->pendingActivation = HANTRO_FALSE;
FREE(pStorage->mb);
FREE(pStorage->sliceGroupMap);
ALLOCATE(pStorage->mb, pStorage->picSizeInMbs, mbStorage_t);
ALLOCATE(pStorage->sliceGroupMap, pStorage->picSizeInMbs, u32);
if (pStorage->mb == NULL || pStorage->sliceGroupMap == NULL)
return(MEMORY_ALLOCATION_ERROR);
H264SwDecMemset(pStorage->mb, 0,
pStorage->picSizeInMbs * sizeof(mbStorage_t));
h264bsdInitMbNeighbours(pStorage->mb,
pStorage->activeSps->picWidthInMbs,
pStorage->picSizeInMbs);
/* dpb output reordering disabled if
* 1) application set noReordering flag
* 2) POC type equal to 2
* 3) num_reorder_frames in vui equal to 0 */
if ( pStorage->noReordering ||
pStorage->activeSps->picOrderCntType == 2 ||
(pStorage->activeSps->vuiParametersPresentFlag &&
pStorage->activeSps->vuiParameters->bitstreamRestrictionFlag &&
!pStorage->activeSps->vuiParameters->numReorderFrames) )
flag = HANTRO_TRUE;
else
flag = HANTRO_FALSE;
tmp = h264bsdResetDpb(pStorage->dpb,
pStorage->activeSps->picWidthInMbs *
pStorage->activeSps->picHeightInMbs,
pStorage->activeSps->maxDpbSize,
pStorage->activeSps->numRefFrames,
pStorage->activeSps->maxFrameNum,
flag);
if (tmp != HANTRO_OK)
return(tmp);
}
else if (ppsId != pStorage->activePpsId)
{
/* sequence parameter set shall not change but before an IDR picture */
if (pStorage->pps[ppsId]->seqParameterSetId != pStorage->activeSpsId)
{
DEBUG(("SEQ PARAM SET CHANGING...\n"));
if (isIdr)
{
pStorage->activePpsId = ppsId;
pStorage->activePps = pStorage->pps[ppsId];
pStorage->activeSpsId = pStorage->activePps->seqParameterSetId;
pStorage->activeSps = pStorage->sps[pStorage->activeSpsId];
pStorage->picSizeInMbs =
pStorage->activeSps->picWidthInMbs *
pStorage->activeSps->picHeightInMbs;
pStorage->currImage->width = pStorage->activeSps->picWidthInMbs;
pStorage->currImage->height =
pStorage->activeSps->picHeightInMbs;
pStorage->pendingActivation = HANTRO_TRUE;
}
else
{
DEBUG(("TRYING TO CHANGE SPS IN NON-IDR SLICE\n"));
return(HANTRO_NOK);
}
}
else
{
pStorage->activePpsId = ppsId;
pStorage->activePps = pStorage->pps[ppsId];
}
}
return(HANTRO_OK);
}
/*------------------------------------------------------------------------------
Function: h264bsdResetStorage
Functional description:
Reset contents of the storage. This should be called before
processing of new image is started.
Inputs:
pStorage pointer to storage structure
Outputs:
none
Returns:
none
------------------------------------------------------------------------------*/
void h264bsdResetStorage(storage_t *pStorage)
{
/* Variables */
u32 i;
/* Code */
ASSERT(pStorage);
pStorage->slice->numDecodedMbs = 0;
pStorage->slice->sliceId = 0;
for (i = 0; i < pStorage->picSizeInMbs; i++)
{
pStorage->mb[i].sliceId = 0;
pStorage->mb[i].decoded = 0;
}
}
/*------------------------------------------------------------------------------
Function: h264bsdIsStartOfPicture
Functional description:
Determine if the decoder is in the start of a picture. This
information is needed to decide if h264bsdActivateParamSets and
h264bsdCheckGapsInFrameNum functions should be called. Function
considers that new picture is starting if no slice headers
have been successfully decoded for the current access unit.
Inputs:
pStorage pointer to storage structure
Outputs:
none
Returns:
HANTRO_TRUE new picture is starting
HANTRO_FALSE not starting
------------------------------------------------------------------------------*/
u32 h264bsdIsStartOfPicture(storage_t *pStorage)
{
/* Variables */
/* Code */
if (pStorage->validSliceInAccessUnit == HANTRO_FALSE)
return(HANTRO_TRUE);
else
return(HANTRO_FALSE);
}
/*------------------------------------------------------------------------------
Function: h264bsdIsEndOfPicture
Functional description:
Determine if the decoder is in the end of a picture. This
information is needed to determine when deblocking filtering
and reference picture marking processes should be performed.
If the decoder is processing primary slices the return value
is determined by checking the value of numDecodedMbs in the
storage. On the other hand, if the decoder is processing
redundant slices the numDecodedMbs may not contain valid
informationa and each macroblock has to be checked separately.
Inputs:
pStorage pointer to storage structure
Outputs:
none
Returns:
HANTRO_TRUE end of picture
HANTRO_FALSE noup
------------------------------------------------------------------------------*/
u32 h264bsdIsEndOfPicture(storage_t *pStorage)
{
/* Variables */
u32 i, tmp;
/* Code */
/* primary picture */
if (!pStorage->sliceHeader[0].redundantPicCnt)
{
if (pStorage->slice->numDecodedMbs == pStorage->picSizeInMbs)
return(HANTRO_TRUE);
}
else
{
for (i = 0, tmp = 0; i < pStorage->picSizeInMbs; i++)
tmp += pStorage->mb[i].decoded ? 1 : 0;
if (tmp == pStorage->picSizeInMbs)
return(HANTRO_TRUE);
}
return(HANTRO_FALSE);
}
/*------------------------------------------------------------------------------
Function: h264bsdComputeSliceGroupMap
Functional description:
Compute slice group map. Just call h264bsdDecodeSliceGroupMap with
appropriate parameters.
Inputs:
pStorage pointer to storage structure
sliceGroupChangeCycle
Outputs:
none
Returns:
none
------------------------------------------------------------------------------*/
void h264bsdComputeSliceGroupMap(storage_t *pStorage, u32 sliceGroupChangeCycle)
{
/* Variables */
/* Code */
h264bsdDecodeSliceGroupMap(pStorage->sliceGroupMap,
pStorage->activePps, sliceGroupChangeCycle,
pStorage->activeSps->picWidthInMbs,
pStorage->activeSps->picHeightInMbs);
}
/*------------------------------------------------------------------------------
Function: h264bsdCheckAccessUnitBoundary
Functional description:
Check if next NAL unit starts a new access unit. Following
conditions specify start of a new access unit:
-NAL unit types 6-11, 13-18 (e.g. SPS, PPS)
following conditions checked only for slice NAL units, values
compared to ones obtained from previous slice:
-NAL unit type differs (slice / IDR slice)
-frame_num differs
-nal_ref_idc differs and one of the values is 0
-POC information differs
-both are IDR slices and idr_pic_id differs
Inputs:
strm pointer to stream data structure
nuNext pointer to NAL unit structure
storage pointer to storage structure
Outputs:
accessUnitBoundaryFlag the result is stored here, TRUE for
access unit boundary, FALSE otherwise
Returns:
HANTRO_OK success
HANTRO_NOK failure, invalid stream data
PARAM_SET_ERROR invalid param set usage
------------------------------------------------------------------------------*/
u32 h264bsdCheckAccessUnitBoundary(
strmData_t *strm,
nalUnit_t *nuNext,
storage_t *storage,
u32 *accessUnitBoundaryFlag)
{
/* Variables */
u32 tmp, ppsId, frameNum, idrPicId, picOrderCntLsb;
i32 deltaPicOrderCntBottom, deltaPicOrderCnt[2];
seqParamSet_t *sps;
picParamSet_t *pps;
/* Code */
ASSERT(strm);
ASSERT(nuNext);
ASSERT(storage);
ASSERT(storage->sps);
ASSERT(storage->pps);
/* initialize default output to FALSE */
*accessUnitBoundaryFlag = HANTRO_FALSE;
if ( ( (nuNext->nalUnitType > 5) && (nuNext->nalUnitType < 12) ) ||
( (nuNext->nalUnitType > 12) && (nuNext->nalUnitType <= 18) ) )
{
*accessUnitBoundaryFlag = HANTRO_TRUE;
return(HANTRO_OK);
}
else if ( nuNext->nalUnitType != NAL_CODED_SLICE &&
nuNext->nalUnitType != NAL_CODED_SLICE_IDR )
{
return(HANTRO_OK);
}
/* check if this is the very first call to this function */
if (storage->aub->firstCallFlag)
{
*accessUnitBoundaryFlag = HANTRO_TRUE;
storage->aub->firstCallFlag = HANTRO_FALSE;
}
/* get picture parameter set id */
tmp = h264bsdCheckPpsId(strm, &ppsId);
if (tmp != HANTRO_OK)
return(tmp);
/* store sps and pps in separate pointers just to make names shorter */
pps = storage->pps[ppsId];
if ( pps == NULL || storage->sps[pps->seqParameterSetId] == NULL ||
(storage->activeSpsId != MAX_NUM_SEQ_PARAM_SETS &&
pps->seqParameterSetId != storage->activeSpsId &&
nuNext->nalUnitType != NAL_CODED_SLICE_IDR) )
return(PARAM_SET_ERROR);
sps = storage->sps[pps->seqParameterSetId];
if (storage->aub->nuPrev->nalRefIdc != nuNext->nalRefIdc &&
(storage->aub->nuPrev->nalRefIdc == 0 || nuNext->nalRefIdc == 0))
*accessUnitBoundaryFlag = HANTRO_TRUE;
if ((storage->aub->nuPrev->nalUnitType == NAL_CODED_SLICE_IDR &&
nuNext->nalUnitType != NAL_CODED_SLICE_IDR) ||
(storage->aub->nuPrev->nalUnitType != NAL_CODED_SLICE_IDR &&
nuNext->nalUnitType == NAL_CODED_SLICE_IDR))
*accessUnitBoundaryFlag = HANTRO_TRUE;
tmp = h264bsdCheckFrameNum(strm, sps->maxFrameNum, &frameNum);
if (tmp != HANTRO_OK)
return(HANTRO_NOK);
if (storage->aub->prevFrameNum != frameNum)
{
storage->aub->prevFrameNum = frameNum;
*accessUnitBoundaryFlag = HANTRO_TRUE;
}
if (nuNext->nalUnitType == NAL_CODED_SLICE_IDR)
{
tmp = h264bsdCheckIdrPicId(strm, sps->maxFrameNum, nuNext->nalUnitType,
&idrPicId);
if (tmp != HANTRO_OK)
return(HANTRO_NOK);
if (storage->aub->nuPrev->nalUnitType == NAL_CODED_SLICE_IDR &&
storage->aub->prevIdrPicId != idrPicId)
*accessUnitBoundaryFlag = HANTRO_TRUE;
storage->aub->prevIdrPicId = idrPicId;
}
if (sps->picOrderCntType == 0)
{
tmp = h264bsdCheckPicOrderCntLsb(strm, sps, nuNext->nalUnitType,
&picOrderCntLsb);
if (tmp != HANTRO_OK)
return(HANTRO_NOK);
if (storage->aub->prevPicOrderCntLsb != picOrderCntLsb)
{
storage->aub->prevPicOrderCntLsb = picOrderCntLsb;
*accessUnitBoundaryFlag = HANTRO_TRUE;
}
if (pps->picOrderPresentFlag)
{
tmp = h264bsdCheckDeltaPicOrderCntBottom(strm, sps,
nuNext->nalUnitType, &deltaPicOrderCntBottom);
if (tmp != HANTRO_OK)
return(tmp);
if (storage->aub->prevDeltaPicOrderCntBottom !=
deltaPicOrderCntBottom)
{
storage->aub->prevDeltaPicOrderCntBottom =
deltaPicOrderCntBottom;
*accessUnitBoundaryFlag = HANTRO_TRUE;
}
}
}
else if (sps->picOrderCntType == 1 && !sps->deltaPicOrderAlwaysZeroFlag)
{
tmp = h264bsdCheckDeltaPicOrderCnt(strm, sps, nuNext->nalUnitType,
pps->picOrderPresentFlag, deltaPicOrderCnt);
if (tmp != HANTRO_OK)
return(tmp);
if (storage->aub->prevDeltaPicOrderCnt[0] != deltaPicOrderCnt[0])
{
storage->aub->prevDeltaPicOrderCnt[0] = deltaPicOrderCnt[0];
*accessUnitBoundaryFlag = HANTRO_TRUE;
}
if (pps->picOrderPresentFlag)
if (storage->aub->prevDeltaPicOrderCnt[1] != deltaPicOrderCnt[1])
{
storage->aub->prevDeltaPicOrderCnt[1] = deltaPicOrderCnt[1];
*accessUnitBoundaryFlag = HANTRO_TRUE;
}
}
*storage->aub->nuPrev = *nuNext;
return(HANTRO_OK);
}
/*------------------------------------------------------------------------------
Function: CheckPps
Functional description:
Check picture parameter set. Contents of the picture parameter
set information that depends on the image dimensions is checked
against the dimensions in the sps.
Inputs:
pps pointer to picture paramter set
sps pointer to sequence parameter set
Outputs:
none
Returns:
HANTRO_OK everything ok
HANTRO_NOK invalid data in picture parameter set
------------------------------------------------------------------------------*/
u32 CheckPps(picParamSet_t *pps, seqParamSet_t *sps)
{
u32 i;
u32 picSize;
picSize = sps->picWidthInMbs * sps->picHeightInMbs;
/* check slice group params */
if (pps->numSliceGroups > 1)
{
if (pps->sliceGroupMapType == 0)
{
ASSERT(pps->runLength);
for (i = 0; i < pps->numSliceGroups; i++)
{
if (pps->runLength[i] > picSize)
return(HANTRO_NOK);
}
}
else if (pps->sliceGroupMapType == 2)
{
ASSERT(pps->topLeft);
ASSERT(pps->bottomRight);
for (i = 0; i < pps->numSliceGroups-1; i++)
{
if (pps->topLeft[i] > pps->bottomRight[i] ||
pps->bottomRight[i] >= picSize)
return(HANTRO_NOK);
if ( (pps->topLeft[i] % sps->picWidthInMbs) >
(pps->bottomRight[i] % sps->picWidthInMbs) )
return(HANTRO_NOK);
}
}
else if (pps->sliceGroupMapType > 2 && pps->sliceGroupMapType < 6)
{
if (pps->sliceGroupChangeRate > picSize)
return(HANTRO_NOK);
}
else if (pps->sliceGroupMapType == 6 &&
pps->picSizeInMapUnits < picSize)
return(HANTRO_NOK);
}
return(HANTRO_OK);
}
/*------------------------------------------------------------------------------
Function: h264bsdValidParamSets
Functional description:
Check if any valid SPS/PPS combination exists in the storage.
Function tries each PPS in the buffer and checks if corresponding
SPS exists and calls CheckPps to determine if the PPS conforms
to image dimensions of the SPS.
Inputs:
pStorage pointer to storage structure
Outputs:
HANTRO_OK there is at least one valid combination
HANTRO_NOK no valid combinations found
------------------------------------------------------------------------------*/
u32 h264bsdValidParamSets(storage_t *pStorage)
{
/* Variables */
u32 i;
/* Code */
ASSERT(pStorage);
for (i = 0; i < MAX_NUM_PIC_PARAM_SETS; i++)
{
if ( pStorage->pps[i] &&
pStorage->sps[pStorage->pps[i]->seqParameterSetId] &&
CheckPps(pStorage->pps[i],
pStorage->sps[pStorage->pps[i]->seqParameterSetId]) ==
HANTRO_OK)
{
return(HANTRO_OK);
}
}
return(HANTRO_NOK);
}
|