/*
* request memory blocks for decoder avc part
*/
int32_t WelsRequestMem (PWelsDecoderContext pCtx, const int32_t kiMbWidth, const int32_t kiMbHeight) {
const int32_t kiPicWidth = kiMbWidth << 4;
const int32_t kiPicHeight = kiMbHeight << 4;
int32_t iErr = ERR_NONE;
int32_t iListIdx = 0; //, mb_blocks = 0;
int32_t iPicQueueSize = 0; // adaptive size of picture queue, = (pSps->iNumRefFrames x 2)
bool bNeedChangePicQueue = true;
WELS_VERIFY_RETURN_IF (ERR_INFO_INVALID_PARAM, (NULL == pCtx || kiPicWidth <= 0 || kiPicHeight <= 0))
// Fixed the issue about different gop size over last, 5/17/2010
// get picture queue size currently
iPicQueueSize = GetTargetRefListSize (pCtx); // adaptive size of picture queue, = (pSps->iNumRefFrames x 2)
pCtx->iPicQueueNumber = iPicQueueSize;
if (pCtx->pPicBuff[LIST_0] != NULL
&& pCtx->pPicBuff[LIST_0]->iCapacity ==
iPicQueueSize) // comparing current picture queue size requested and previous allocation picture queue
bNeedChangePicQueue = false;
// HD based pic buffer need consider memory size consumed when switch from 720p to other lower size
WELS_VERIFY_RETURN_IF (ERR_NONE, pCtx->bHaveGotMemory && (kiPicWidth == pCtx->iImgWidthInPixel
&& kiPicHeight == pCtx->iImgHeightInPixel) && (!bNeedChangePicQueue)) // have same scaled buffer
// sync update pRefList
WelsResetRefPic (pCtx); // added to sync update ref list due to pictures are free
// for Recycled_Pic_Queue
for (iListIdx = LIST_0; iListIdx < LIST_A; ++ iListIdx) {
PPicBuff* ppPic = &pCtx->pPicBuff[iListIdx];
if (NULL != ppPic && NULL != *ppPic) {
DestroyPicBuff (ppPic);
}
}
pCtx->pPreviousDecodedPictureInDpb = NULL;
// currently only active for LIST_0 due to have no B frames
iErr = CreatePicBuff (pCtx, &pCtx->pPicBuff[LIST_0], iPicQueueSize, kiPicWidth, kiPicHeight);
if (iErr != ERR_NONE)
return iErr;
pCtx->iImgWidthInPixel = kiPicWidth; // target width of image to be reconstruted while decoding
pCtx->iImgHeightInPixel = kiPicHeight; // target height of image to be reconstruted while decoding
pCtx->bHaveGotMemory = true; // global memory for decoder context related is requested
pCtx->pDec = NULL; // need prefetch a new pic due to spatial size changed
return ERR_NONE;
}
/*
* request memory blocks for decoder avc part
*/
int32_t WelsRequestMem (PWelsDecoderContext pCtx, const int32_t kiMbWidth, const int32_t kiMbHeight,
bool& bReallocFlag) {
const int32_t kiPicWidth = kiMbWidth << 4;
const int32_t kiPicHeight = kiMbHeight << 4;
int32_t iErr = ERR_NONE;
int32_t iListIdx = 0; //, mb_blocks = 0;
int32_t iPicQueueSize = 0; // adaptive size of picture queue, = (pSps->iNumRefFrames x 2)
bReallocFlag = false;
bool bNeedChangePicQueue = true;
CMemoryAlign* pMa = pCtx->pMemAlign;
WELS_VERIFY_RETURN_IF (ERR_INFO_INVALID_PARAM, (NULL == pCtx || kiPicWidth <= 0 || kiPicHeight <= 0))
// Fixed the issue about different gop size over last, 5/17/2010
// get picture queue size currently
iPicQueueSize = GetTargetRefListSize (pCtx); // adaptive size of picture queue, = (pSps->iNumRefFrames x 2)
pCtx->iPicQueueNumber = iPicQueueSize;
if (pCtx->pPicBuff[LIST_0] != NULL
&& pCtx->pPicBuff[LIST_0]->iCapacity ==
iPicQueueSize) // comparing current picture queue size requested and previous allocation picture queue
bNeedChangePicQueue = false;
// HD based pic buffer need consider memory size consumed when switch from 720p to other lower size
WELS_VERIFY_RETURN_IF (ERR_NONE, pCtx->bHaveGotMemory && (kiPicWidth == pCtx->iImgWidthInPixel
&& kiPicHeight == pCtx->iImgHeightInPixel) && (!bNeedChangePicQueue)) // have same scaled buffer
// sync update pRefList
WelsResetRefPic (pCtx); // added to sync update ref list due to pictures are free
if (pCtx->bHaveGotMemory && (kiPicWidth == pCtx->iImgWidthInPixel && kiPicHeight == pCtx->iImgHeightInPixel)
&& pCtx->pPicBuff[LIST_0] != NULL && pCtx->pPicBuff[LIST_0]->iCapacity != iPicQueueSize) {
// currently only active for LIST_0 due to have no B frames
WelsLog (& (pCtx->sLogCtx), WELS_LOG_INFO,
"WelsRequestMem(): memory re-alloc for no resolution change (size = %d * %d), ref list size change from %d to %d",
kiPicWidth, kiPicHeight, pCtx->pPicBuff[LIST_0]->iCapacity, iPicQueueSize);
if (pCtx->pPicBuff[LIST_0]->iCapacity < iPicQueueSize) {
iErr = IncreasePicBuff (pCtx, &pCtx->pPicBuff[LIST_0], pCtx->pPicBuff[LIST_0]->iCapacity, kiPicWidth, kiPicHeight,
iPicQueueSize);
} else {
iErr = DecreasePicBuff (pCtx, &pCtx->pPicBuff[LIST_0], pCtx->pPicBuff[LIST_0]->iCapacity, kiPicWidth, kiPicHeight,
iPicQueueSize);
}
} else {
if (pCtx->bHaveGotMemory)
WelsLog (& (pCtx->sLogCtx), WELS_LOG_INFO,
"WelsRequestMem(): memory re-alloc for resolution change, size change from %d * %d to %d * %d, ref list size change from %d to %d",
pCtx->iImgWidthInPixel, pCtx->iImgHeightInPixel, kiPicWidth, kiPicHeight, pCtx->pPicBuff[LIST_0]->iCapacity,
iPicQueueSize);
else
WelsLog (& (pCtx->sLogCtx), WELS_LOG_INFO, "WelsRequestMem(): memory alloc size = %d * %d, ref list size = %d",
kiPicWidth, kiPicHeight, iPicQueueSize);
// for Recycled_Pic_Queue
for (iListIdx = LIST_0; iListIdx < LIST_A; ++ iListIdx) {
PPicBuff* ppPic = &pCtx->pPicBuff[iListIdx];
if (NULL != ppPic && NULL != *ppPic) {
DestroyPicBuff (ppPic, pMa);
}
}
pCtx->pPreviousDecodedPictureInDpb = NULL;
// currently only active for LIST_0 due to have no B frames
iErr = CreatePicBuff (pCtx, &pCtx->pPicBuff[LIST_0], iPicQueueSize, kiPicWidth, kiPicHeight);
}
if (iErr != ERR_NONE)
return iErr;
pCtx->iImgWidthInPixel = kiPicWidth; // target width of image to be reconstruted while decoding
pCtx->iImgHeightInPixel = kiPicHeight; // target height of image to be reconstruted while decoding
pCtx->bHaveGotMemory = true; // global memory for decoder context related is requested
pCtx->pDec = NULL; // need prefetch a new pic due to spatial size changed
if (pCtx->pCabacDecEngine == NULL)
pCtx->pCabacDecEngine = (SWelsCabacDecEngine*) pMa->WelsMallocz (sizeof (SWelsCabacDecEngine), "pCtx->pCabacDecEngine");
WELS_VERIFY_RETURN_IF (ERR_INFO_OUT_OF_MEMORY, (NULL == pCtx->pCabacDecEngine))
bReallocFlag = true; // memory re-allocation successfully finished
return ERR_NONE;
}
