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-rw-r--r--libSBRdec/include/sbrdecoder.h2
-rw-r--r--libSBRdec/src/env_extr.h2
-rw-r--r--libSBRdec/src/sbrdecoder.cpp48
3 files changed, 47 insertions, 5 deletions
diff --git a/libSBRdec/include/sbrdecoder.h b/libSBRdec/include/sbrdecoder.h
index cb06dbc..36a4739 100644
--- a/libSBRdec/include/sbrdecoder.h
+++ b/libSBRdec/include/sbrdecoder.h
@@ -145,6 +145,8 @@ typedef enum
SBR_SYSTEM_BITSTREAM_DELAY, /*!< System: Switch to enable an additional SBR bitstream delay of one frame. */
SBR_QMF_MODE, /*!< Set QMF mode, either complex or low power. */
SBR_LD_QMF_TIME_ALIGN, /*!< Set QMF type, either LD-MPS or CLDFB. Relevant for ELD streams only. */
+ SBR_FLUSH_DATA, /*!< Set internal state to flush the decoder with the next process call. */
+ SBR_CLEAR_HISTORY, /*!< Clear all internal states (delay lines, QMF states, ...). */
SBR_BS_INTERRUPTION /*!< Signal bit stream interruption. Value is ignored. */
} SBRDEC_PARAM;
diff --git a/libSBRdec/src/env_extr.h b/libSBRdec/src/env_extr.h
index 5db6d3d..ddbfa18 100644
--- a/libSBRdec/src/env_extr.h
+++ b/libSBRdec/src/env_extr.h
@@ -179,6 +179,8 @@ typedef FREQ_BAND_DATA *HANDLE_FREQ_BAND_DATA;
#define SBRDEC_LOW_POWER 16 /* Flag indicating that Low Power QMF mode shall be used. */
#define SBRDEC_PS_DECODED 32 /* Flag indicating that PS was decoded and rendered. */
#define SBRDEC_LD_MPS_QMF 512 /* Flag indicating that the LD-MPS QMF shall be used. */
+#define SBRDEC_FLUSH 16384 /* Flag is used to flush all elements in use. */
+#define SBRDEC_FORCE_RESET 32768 /* Flag is used to force a reset of all elements in use. */
#define SBRDEC_HDR_STAT_RESET 1
#define SBRDEC_HDR_STAT_UPDATE 2
diff --git a/libSBRdec/src/sbrdecoder.cpp b/libSBRdec/src/sbrdecoder.cpp
index 5734020..bed23c7 100644
--- a/libSBRdec/src/sbrdecoder.cpp
+++ b/libSBRdec/src/sbrdecoder.cpp
@@ -137,7 +137,7 @@ amm-info@iis.fraunhofer.de
/* Decoder library info */
#define SBRDECODER_LIB_VL0 2
#define SBRDECODER_LIB_VL1 2
-#define SBRDECODER_LIB_VL2 4
+#define SBRDECODER_LIB_VL2 5
#define SBRDECODER_LIB_TITLE "SBR Decoder"
#define SBRDECODER_LIB_BUILD_DATE __DATE__
#define SBRDECODER_LIB_BUILD_TIME __TIME__
@@ -444,6 +444,7 @@ SBR_ERROR sbrDecoder_InitElement (
&& self->coreCodec == coreCodec
&& self->pSbrElement[elementIndex] != NULL
&& self->pSbrElement[elementIndex]->elementID == elementID
+ && !(self->flags & SBRDEC_FORCE_RESET)
)
{
/* Nothing to do */
@@ -550,8 +551,9 @@ bail:
if (nSbrElementsStart < self->numSbrElements) {
/* Free the memory allocated for this element */
sbrDecoder_DestroyElement( self, elementIndex );
- } else if (self->pSbrElement[elementIndex] != NULL) {
- /* Set error flag to trigger concealment */
+ } else if ( (self->pSbrElement[elementIndex] != NULL)
+ && (elementIndex < (8)))
+ { /* Set error flag to trigger concealment */
self->pSbrElement[elementIndex]->frameErrorFlag[self->pSbrElement[elementIndex]->useFrameSlot] = 1;
}
}
@@ -728,6 +730,24 @@ SBR_ERROR sbrDecoder_SetParam (HANDLE_SBRDECODER self,
}
}
break;
+ case SBR_FLUSH_DATA:
+ if (value != 0) {
+ if (self == NULL) {
+ errorStatus = SBRDEC_NOT_INITIALIZED;
+ } else {
+ self->flags |= SBRDEC_FLUSH;
+ }
+ }
+ break;
+ case SBR_CLEAR_HISTORY:
+ if (value != 0) {
+ if (self == NULL) {
+ errorStatus = SBRDEC_NOT_INITIALIZED;
+ } else {
+ self->flags |= SBRDEC_FORCE_RESET;
+ }
+ }
+ break;
case SBR_BS_INTERRUPTION:
{
int elementIndex;
@@ -738,7 +758,8 @@ SBR_ERROR sbrDecoder_SetParam (HANDLE_SBRDECODER self,
}
/* Loop over SBR elements */
- for (elementIndex = 0; elementIndex < self->numSbrElements; elementIndex++)
+ for (elementIndex = 0; elementIndex < self->numSbrElements; elementIndex++) {
+ if (self->pSbrElement[elementIndex] != NULL)
{
HANDLE_SBR_HEADER_DATA hSbrHeader;
int headerIndex = getHeaderSlot(self->pSbrElement[elementIndex]->useFrameSlot,
@@ -750,7 +771,7 @@ SBR_ERROR sbrDecoder_SetParam (HANDLE_SBRDECODER self,
This switches off bitstream parsing until a new header arrives. */
hSbrHeader->syncState = UPSAMPLING;
hSbrHeader->status |= SBRDEC_HDR_STAT_UPDATE;
- }
+ } }
}
break;
default:
@@ -1119,6 +1140,10 @@ SBR_ERROR sbrDecoder_Parse(
}
}
}
+ } else {
+ /* The returned bit count will not be the actual payload size since we did not
+ parse the frame data. Return an error so that the caller can react respectively. */
+ errorStatus = SBRDEC_PARSE_ERROR;
}
if (!fDoDecodeSbrData) {
@@ -1198,6 +1223,15 @@ sbrDecoder_DecodeElement (
int stereo = (hSbrElement->elementID == ID_CPE) ? 1 : 0;
int numElementChannels = hSbrElement->nChannels; /* Number of channels of the current SBR element */
+ if (self->flags & SBRDEC_FLUSH) {
+ /* Move frame pointer to the next slot which is up to be decoded/applied next */
+ hSbrElement->useFrameSlot = (hSbrElement->useFrameSlot+1) % (self->numDelayFrames+1);
+ /* Update header and frame data pointer because they have already been set */
+ hSbrHeader = &self->sbrHeader[elementIndex][hSbrElement->useHeaderSlot[hSbrElement->useFrameSlot]];
+ hFrameDataLeft = &hSbrElement->pSbrChannel[0]->frameData[hSbrElement->useFrameSlot];
+ hFrameDataRight = &hSbrElement->pSbrChannel[1]->frameData[hSbrElement->useFrameSlot];
+ }
+
/* Update the header error flag */
hSbrHeader->frameErrorFlag = hSbrElement->frameErrorFlag[hSbrElement->useFrameSlot];
@@ -1472,6 +1506,10 @@ SBR_ERROR sbrDecoder_Apply ( HANDLE_SBRDECODER self,
+ /* Clear reset and flush flag because everything seems to be done successfully. */
+ self->flags &= ~SBRDEC_FORCE_RESET;
+ self->flags &= ~SBRDEC_FLUSH;
+
bail:
return errorStatus;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 17:09:51 +0000