// 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;
}
/*!
*************************************************************************************
* \brief Initialize Wels decoder parameters and memory
*
* \param pCtx input context to be initialized at first stage
*
* \return 0 - successed
* \return 1 - failed
*
* \note N/A
*************************************************************************************
*/
int32_t WelsInitDecoder (PWelsDecoderContext pCtx, const bool bParseOnly, SLogContext* pLogCtx) {
if (pCtx == NULL) {
return ERR_INFO_INVALID_PTR;
}
// default
WelsDecoderDefaults (pCtx, pLogCtx);
pCtx->bParseOnly = bParseOnly;
// open decoder
return WelsOpenDecoder (pCtx);
}
/*!
*************************************************************************************
* \brief Initialize Wels decoder parameters and memory
*
* \param pCtx input context to be initialized at first stage
*
* \return 0 - successed
* \return 1 - failed
*
* \note N/A
*************************************************************************************
*/
int32_t WelsInitDecoder (PWelsDecoderContext pCtx, SLogContext* pLogCtx) {
if (pCtx == NULL) {
return ERR_INFO_INVALID_PTR;
}
// default
WelsDecoderDefaults (pCtx, pLogCtx);
// open decoder
WelsOpenDecoder (pCtx);
return ERR_NONE;
}
/*!
*************************************************************************************
* \brief Initialize Wels decoder parameters and memory
*
* \param pCtx input context to be initialized at first stage
*
* \return 0 - successed
* \return 1 - failed
*
* \note N/A
*************************************************************************************
*/
int32_t WelsInitDecoder (PWelsDecoderContext pCtx, void* pTraceHandle, PWelsLogCallbackFunc pLog) {
if (pCtx == NULL) {
return ERR_INFO_INVALID_PTR;
}
// default
WelsDecoderDefaults (pCtx);
pCtx->pTraceHandle = pTraceHandle;
g_pLog = pLog;
// open decoder
WelsOpenDecoder (pCtx);
return ERR_NONE;
}
/*!
*************************************************************************************
* \brief Initialize Wels decoder parameters and memory
*
* \param pCtx input context to be initialized at first stage
*
* \return 0 - successed
* \return 1 - failed
*
* \note N/A
*************************************************************************************
*/
int32_t WelsInitDecoder (PWelsDecoderContext pCtx, void_t* pTraceHandle, PWelsLogCallbackFunc pLog) {
if (pCtx == NULL) {
return ERR_INFO_INVALID_PTR;
}
// default
WelsDecoderDefaults (pCtx);
pCtx->pTraceHandle = pTraceHandle;
g_pLog = pLog;
// open decoder
WelsOpenDecoder (pCtx);
// decode mode setting
pCtx->iDecoderMode = SW_MODE;
pCtx->iSetMode = AUTO_MODE;
pCtx->iDecoderOutputProperty = BUFFER_HOST;
pCtx->iModeSwitchType = 0; // 0: do not do mode switch
return ERR_NONE;
}
