/*!
* \brief configure decoder parameters
*/
int32_t DecoderConfigParam (PWelsDecoderContext pCtx, const SDecodingParam* kpParam) {
if (NULL == pCtx || NULL == kpParam)
return 1;
pCtx->pParam = (SDecodingParam*)WelsMallocz (sizeof (SDecodingParam), "SDecodingParam");
if (NULL == pCtx->pParam)
return 1;
memcpy (pCtx->pParam, kpParam, sizeof (SDecodingParam));
pCtx->eOutputColorFormat = pCtx->pParam->eOutputColorFormat;
if (!pCtx->bParseOnly) {
int32_t iRet = DecoderSetCsp (pCtx, pCtx->pParam->eOutputColorFormat);
if (iRet)
return iRet;
}
pCtx->eErrorConMethod = pCtx->pParam->eEcActiveIdc;
if (pCtx->bParseOnly) //parse only, disable EC method
pCtx->eErrorConMethod = ERROR_CON_DISABLE;
InitErrorCon (pCtx);
if (VIDEO_BITSTREAM_SVC == pCtx->pParam->sVideoProperty.eVideoBsType ||
VIDEO_BITSTREAM_AVC == pCtx->pParam->sVideoProperty.eVideoBsType) {
pCtx->eVideoType = pCtx->pParam->sVideoProperty.eVideoBsType;
} else {
pCtx->eVideoType = VIDEO_BITSTREAM_DEFAULT;
}
WelsLog (& (pCtx->sLogCtx), WELS_LOG_INFO, "eVideoType: %d", pCtx->eVideoType);
return 0;
}
// the return value of this function is not suitable, it need report failure info to upper layer.
int32_t CWelsDecoder::InitDecoder (const SDecodingParam* pParam) {
WelsLog (&m_pWelsTrace->m_sLogCtx, WELS_LOG_INFO,
"CWelsDecoder::init_decoder(), openh264 codec version = %s, ParseOnly = %d",
VERSION_NUMBER, (int32_t)pParam->bParseOnly);
//reset decoder context
if (m_pDecContext) //free
UninitDecoder();
m_pDecContext = (PWelsDecoderContext)WelsMallocz (sizeof (SWelsDecoderContext), "m_pDecContext");
if (NULL == m_pDecContext)
return cmMallocMemeError;
int32_t iCacheLineSize = 16; // on chip cache line size in byte
m_pDecContext->pMemAlign = new CMemoryAlign (iCacheLineSize);
WELS_VERIFY_RETURN_PROC_IF (1, (NULL == m_pDecContext->pMemAlign), UninitDecoder())
//fill in default value into context
WelsDecoderDefaults (m_pDecContext, &m_pWelsTrace->m_sLogCtx);
//check param and update decoder context
m_pDecContext->pParam = (SDecodingParam*) m_pDecContext->pMemAlign->WelsMallocz (sizeof (SDecodingParam),
"SDecodingParam");
WELS_VERIFY_RETURN_PROC_IF (cmMallocMemeError, (NULL == m_pDecContext->pParam), UninitDecoder());
int32_t iRet = DecoderConfigParam (m_pDecContext, pParam);
WELS_VERIFY_RETURN_IFNEQ (iRet, cmResultSuccess);
//init decoder
WELS_VERIFY_RETURN_PROC_IF (cmInitParaError, WelsInitDecoder (m_pDecContext, &m_pWelsTrace->m_sLogCtx), UninitDecoder())
return cmResultSuccess;
}
static int32_t CreatePicBuff (PWelsDecoderContext pCtx, PPicBuff* ppPicBuf, const int32_t kiSize,
const int32_t kiPicWidth, const int32_t kiPicHeight) {
PPicBuff pPicBuf = NULL;
int32_t iPicIdx = 0;
if (kiSize <= 0 || kiPicWidth <= 0 || kiPicHeight <= 0) {
return 1;
}
pPicBuf = (PPicBuff)WelsMallocz (sizeof (SPicBuff), "PPicBuff");
if (NULL == pPicBuf) {
return 1;
}
pPicBuf->ppPic = (PPicture*)WelsMallocz (kiSize * sizeof (PPicture), "PPicture*");
if (NULL == pPicBuf->ppPic) {
pPicBuf->iCapacity = 0;
DestroyPicBuff (&pPicBuf);
return 1;
}
for (iPicIdx = 0; iPicIdx < kiSize; ++ iPicIdx) {
PPicture pPic = AllocPicture (pCtx, kiPicWidth, kiPicHeight);
if (NULL == pPic) {
// init capacity first for free memory
pPicBuf->iCapacity = iPicIdx;
DestroyPicBuff (&pPicBuf);
return 1;
}
pPicBuf->ppPic[iPicIdx] = pPic;
}
// initialize context in queue
pPicBuf->iCapacity = kiSize;
pPicBuf->iCurrentIdx = 0;
* ppPicBuf = pPicBuf;
return 0;
}
// the return value of this function is not suitable, it need report failure info to upper layer.
int32_t CWelsDecoder::InitDecoder (const bool bParseOnly) {
WelsLog (&m_pWelsTrace->m_sLogCtx, WELS_LOG_INFO, "CWelsDecoder::init_decoder(), openh264 codec version = %s",
VERSION_NUMBER);
if (m_pDecContext) //free
UninitDecoder();
m_pDecContext = (PWelsDecoderContext)WelsMallocz (sizeof (SWelsDecoderContext), "m_pDecContext");
if (NULL == m_pDecContext)
return cmMallocMemeError;
return WelsInitDecoder (m_pDecContext, bParseOnly, &m_pWelsTrace->m_sLogCtx);
}
/*
* 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
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);
}
}
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*) WelsMallocz (sizeof (SWelsCabacDecEngine), "pCtx->pCabacDecEngine");
return ERR_NONE;
}
static int32_t DecreasePicBuff (PWelsDecoderContext pCtx, PPicBuff* ppPicBuf, const int32_t kiOldSize,
const int32_t kiPicWidth, const int32_t kiPicHeight, const int32_t kiNewSize) {
PPicBuff pPicOldBuf = *ppPicBuf;
PPicBuff pPicNewBuf = NULL;
int32_t iPicIdx = 0;
if (kiOldSize <= 0 || kiNewSize <= 0 || kiPicWidth <= 0 || kiPicHeight <= 0) {
return 1;
}
pPicNewBuf = (PPicBuff)WelsMallocz (sizeof (SPicBuff), "PPicBuff");
if (NULL == pPicNewBuf) {
return 1;
}
pPicNewBuf->ppPic = (PPicture*)WelsMallocz (kiNewSize * sizeof (PPicture), "PPicture*");
if (NULL == pPicNewBuf->ppPic) {
pPicNewBuf->iCapacity = 0;
DestroyPicBuff (&pPicNewBuf);
return 1;
}
int32_t iPrevPicIdx = -1;
for (iPrevPicIdx = 0; iPrevPicIdx < kiOldSize; ++iPrevPicIdx) {
if (pCtx->pPreviousDecodedPictureInDpb == pPicOldBuf->ppPic[iPrevPicIdx]) {
break;
}
}
int32_t iDelIdx;
if (iPrevPicIdx < kiOldSize && iPrevPicIdx >= kiNewSize) {
// found pPreviousDecodedPictureInDpb,
pPicNewBuf->ppPic[0] = pPicOldBuf->ppPic[iPrevPicIdx];
pPicNewBuf->iCurrentIdx = 0;
memcpy (pPicNewBuf->ppPic + 1, pPicOldBuf->ppPic, (kiNewSize - 1) * sizeof (PPicture));
iDelIdx = kiNewSize - 1;
} else {
memcpy (pPicNewBuf->ppPic, pPicOldBuf->ppPic, kiNewSize * sizeof (PPicture));
pPicNewBuf->iCurrentIdx = iPrevPicIdx < kiNewSize ? iPrevPicIdx : 0;
iDelIdx = kiNewSize;
}
for (iPicIdx = iDelIdx; iPicIdx < kiOldSize; iPicIdx++) {
if (iPrevPicIdx != iPicIdx) {
if (pPicOldBuf->ppPic[iPicIdx] != NULL) {
FreePicture (pPicOldBuf->ppPic[iPicIdx]);
pPicOldBuf->ppPic[iPicIdx] = NULL;
}
}
}
// initialize context in queue
pPicNewBuf->iCapacity = kiNewSize;
*ppPicBuf = pPicNewBuf;
for (int32_t i = 0; i < pPicNewBuf->iCapacity; i++) {
pPicNewBuf->ppPic[i]->bUsedAsRef = false;
pPicNewBuf->ppPic[i]->bIsLongRef = false;
pPicNewBuf->ppPic[i]->uiRefCount = 0;
pPicNewBuf->ppPic[i]->bAvailableFlag = true;
pPicNewBuf->ppPic[i]->bIsComplete = false;
}
// remove old PicBuf
if (pPicOldBuf->ppPic != NULL) {
WelsFree (pPicOldBuf->ppPic, "pPicOldBuf->queue");
pPicOldBuf->ppPic = NULL;
}
pPicOldBuf->iCapacity = 0;
pPicOldBuf->iCurrentIdx = 0;
WelsFree (pPicOldBuf, "pPicOldBuf");
pPicOldBuf = NULL;
return 0;
}
static int32_t IncreasePicBuff (PWelsDecoderContext pCtx, PPicBuff* ppPicBuf, const int32_t kiOldSize,
const int32_t kiPicWidth, const int32_t kiPicHeight, const int32_t kiNewSize) {
PPicBuff pPicOldBuf = *ppPicBuf;
PPicBuff pPicNewBuf = NULL;
int32_t iPicIdx = 0;
if (kiOldSize <= 0 || kiNewSize <= 0 || kiPicWidth <= 0 || kiPicHeight <= 0) {
return 1;
}
pPicNewBuf = (PPicBuff)WelsMallocz (sizeof (SPicBuff), "PPicBuff");
if (NULL == pPicNewBuf) {
return 1;
}
pPicNewBuf->ppPic = (PPicture*)WelsMallocz (kiNewSize * sizeof (PPicture), "PPicture*");
if (NULL == pPicNewBuf->ppPic) {
pPicNewBuf->iCapacity = 0;
DestroyPicBuff (&pPicNewBuf);
return 1;
}
// increase new PicBuf
for (iPicIdx = kiOldSize; iPicIdx < kiNewSize; ++ iPicIdx) {
PPicture pPic = AllocPicture (pCtx, kiPicWidth, kiPicHeight);
if (NULL == pPic) {
// Set maximum capacity as the new malloc memory at the tail
pPicNewBuf->iCapacity = iPicIdx;
DestroyPicBuff (&pPicNewBuf);
return 1;
}
pPicNewBuf->ppPic[iPicIdx] = pPic;
}
// copy old PicBuf to new PicBuf
memcpy (pPicNewBuf->ppPic, pPicOldBuf->ppPic, kiOldSize * sizeof (PPicture));
// initialize context in queue
pPicNewBuf->iCapacity = kiNewSize;
pPicNewBuf->iCurrentIdx = pPicOldBuf->iCurrentIdx;
* ppPicBuf = pPicNewBuf;
for (int32_t i = 0; i < pPicNewBuf->iCapacity; i++) {
pPicNewBuf->ppPic[i]->bUsedAsRef = false;
pPicNewBuf->ppPic[i]->bIsLongRef = false;
pPicNewBuf->ppPic[i]->uiRefCount = 0;
pPicNewBuf->ppPic[i]->bAvailableFlag = true;
pPicNewBuf->ppPic[i]->bIsComplete = false;
}
// remove old PicBuf
if (pPicOldBuf->ppPic != NULL) {
WelsFree (pPicOldBuf->ppPic, "pPicOldBuf->queue");
pPicOldBuf->ppPic = NULL;
}
pPicOldBuf->iCapacity = 0;
pPicOldBuf->iCurrentIdx = 0;
WelsFree (pPicOldBuf, "pPicOldBuf");
pPicOldBuf = NULL;
return 0;
}