shithub: openh264

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add single function for new seq detection

--- a/codec/decoder/core/inc/au_parser.h

+++ b/codec/decoder/core/inc/au_parser.h

@@ -96,6 +96,8 @@

                               const PSps kpSps);

 bool CheckAccessUnitBoundaryExt (PNalUnitHeaderExt pLastNalHdrExt, PNalUnitHeaderExt pCurNalHeaderExt,

                                  PSliceHeader pLastSliceHeader, PSliceHeader pCurSliceHeader);

+bool CheckNextAuNewSeq (PWelsDecoderContext pCtx, const PNalUnit kpCurNal, const PSps kpSps);

+

 /*!

  *************************************************************************************

  * \brief	to parse Sequence Parameter Set (SPS)

--- a/codec/decoder/core/src/au_parser.cpp

+++ b/codec/decoder/core/src/au_parser.cpp

@@ -331,8 +331,8 @@

                                  pCurAu->pNalUnitsList[uiAvailNalNum - 1]->sNalData.sVclNal.sSliceHeaderExt.sSliceHeader.pSps)) {

       pCurAu->uiEndPos = uiAvailNalNum - 2;

       pCtx->bAuReadyFlag = true;

+      pCtx->bNextNewSeqBegin = CheckNextAuNewSeq (pCtx, pCurNal, pCurNal->sNalData.sVclNal.sSliceHeaderExt.sSliceHeader.pSps);

-

     }

   }

   break;

@@ -411,7 +411,6 @@

   const SSliceHeader* kpCurSliceHeader = &kpCurNal->sNalData.sVclNal.sSliceHeaderExt.sSliceHeader;

   if (pCtx->pActiveLayerSps[kpCurNalHeaderExt->uiDependencyId] != NULL

       && pCtx->pActiveLayerSps[kpCurNalHeaderExt->uiDependencyId] != kpSps) {

-    pCtx->bNextNewSeqBegin = true;

     return true; // the active sps changed, new sequence begins, so the current au is ready

   }

@@ -456,6 +455,17 @@

     if (kpLastSliceHeader->iDeltaPicOrderCnt[1] != kpCurSliceHeader->iDeltaPicOrderCnt[1])

       return true;

   }

+

+  return false;

+}

+

+bool CheckNextAuNewSeq (PWelsDecoderContext pCtx, const PNalUnit kpCurNal, const PSps kpSps) {

+  const PNalUnitHeaderExt kpCurNalHeaderExt = &kpCurNal->sNalHeaderExt;

+  if (pCtx->pActiveLayerSps[kpCurNalHeaderExt->uiDependencyId] != NULL

+      && pCtx->pActiveLayerSps[kpCurNalHeaderExt->uiDependencyId] != kpSps)

+    return true;

+  if (kpCurNalHeaderExt->bIdrFlag)

+    return true;

   return false;

 }