3 files changed, 14 insertions, 4 deletions
diff --git a/libMpegTPDec/src/tpdec_asc.cpp b/libMpegTPDec/src/tpdec_asc.cpp
index abe66e5..74beaa6 100644
--- a/libMpegTPDec/src/tpdec_asc.cpp
+++ b/libMpegTPDec/src/tpdec_asc.cpp
@@ -2488,7 +2488,7 @@ TRANSPORTDEC_ERROR DrmRawSdcAudioConfig_Parse(
 
     switch (audioCoding) {
       case 0: /* AAC */
-        if (coderField >> 2) {
+        if ((coderField >> 2) && (audioMode != 1)) {
           self->m_aot = AOT_DRM_SURROUND; /* Set pseudo AOT for Drm Surround */
         } else {
           self->m_aot = AOT_DRM_AAC; /* Set pseudo AOT for Drm AAC */
diff --git a/libMpegTPDec/src/tpdec_latm.cpp b/libMpegTPDec/src/tpdec_latm.cpp
index b4f7372..2edf055 100644
--- a/libMpegTPDec/src/tpdec_latm.cpp
+++ b/libMpegTPDec/src/tpdec_latm.cpp
@@ -126,7 +126,6 @@ static TRANSPORTDEC_ERROR CLatmDemux_ReadAudioMuxElement(
     CSTpCallBacks *pTpDecCallbacks, CSAudioSpecificConfig *pAsc,
     int *pfConfigFound) {
   TRANSPORTDEC_ERROR ErrorStatus = TRANSPORTDEC_OK;
-  UCHAR applyAsc = pLatmDemux->applyAsc;
 
   if (m_muxConfigPresent) {
     pLatmDemux->m_useSameStreamMux = FDKreadBits(bs, 1);
@@ -152,7 +151,12 @@ static TRANSPORTDEC_ERROR CLatmDemux_ReadAudioMuxElement(
           goto bail;
         }
 
-        if (pLatmDemux->newCfgHasAudioPreRoll) {
+        /* Allow flushing only when audioPreroll functionality is enabled in
+         * current and new config otherwise the new config can be applied
+         * immediately. */
+        if (pAsc->m_sc.m_usacConfig.element[0]
+                .extElement.usacExtElementHasAudioPreRoll &&
+            pLatmDemux->newCfgHasAudioPreRoll) {
           pLatmDemux->newCfgHasAudioPreRoll = 0;
           /* with audioPreRoll we must flush before applying new cfg */
           pLatmDemux->applyAsc = 0;
@@ -223,7 +227,7 @@ static TRANSPORTDEC_ERROR CLatmDemux_ReadAudioMuxElement(
 
 bail:
   if (ErrorStatus != TRANSPORTDEC_OK) {
-    pLatmDemux->applyAsc = applyAsc;
+    pLatmDemux->applyAsc = 1;
   }
 
   return (ErrorStatus);
diff --git a/libMpegTPDec/src/tpdec_lib.cpp b/libMpegTPDec/src/tpdec_lib.cpp
index 10e3352..306bec0 100644
--- a/libMpegTPDec/src/tpdec_lib.cpp
+++ b/libMpegTPDec/src/tpdec_lib.cpp
@@ -1151,6 +1151,12 @@ static TRANSPORTDEC_ERROR synchronization(HANDLE_TRANSPORTDEC hTp,
                                     &syncLayerFrameBits, &fConfigFound,
                                     &headerBits);
       if (TPDEC_IS_FATAL_ERROR(err)) {
+        /* Rewind - TPDEC_SYNCSKIP, in order to look for a synch one bit ahead
+         * next time. Ensure that the bit amount lands at a multiple of
+         * TPDEC_SYNCSKIP. */
+        FDKpushBiDirectional(
+            hBs, -headerBits + TPDEC_SYNCSKIP + (bitsAvail % TPDEC_SYNCSKIP));
+
         goto bail;
       }
     }