ref: 1d357ef65360f0ea72a3d3ddd9f1af3cc6373511
dir: /codec/decoder/core/src/pic_queue.cpp/
/*!
* \copy
* Copyright (c) 2009-2013, Cisco Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
* \file pic_queue.c
*
* \brief Recycled piture queue implementation
*
* \date 03/13/2009 Created
*
*************************************************************************************
*/
#include "pic_queue.h"
#include "decoder_context.h"
#include "codec_def.h"
#include "memory_align.h"
namespace WelsDec {
void FreePicture (PPicture pPic, CMemoryAlign* pMa);
///////////////////////////////////Recycled queue management for pictures///////////////////////////////////
/* ______________________________________
-->| P0 | P1 | P2 | P3 | P4 | .. | Pn-1 |-->
--------------------------------------
*
* How does it work?
* node <- next; ++ next;
*
*/
PPicture AllocPicture (PWelsDecoderContext pCtx, const int32_t kiPicWidth, const int32_t kiPicHeight) {
PPicture pPic = NULL;
int32_t iPicWidth = 0;
int32_t iPicHeight = 0;
int32_t iPicChromaWidth = 0;
int32_t iPicChromaHeight = 0;
int32_t iLumaSize = 0;
int32_t iChromaSize = 0;
CMemoryAlign* pMa = pCtx->pMemAlign;
pPic = (PPicture) pMa->WelsMallocz (sizeof (SPicture), "PPicture");
WELS_VERIFY_RETURN_IF (NULL, NULL == pPic);
memset (pPic, 0, sizeof (SPicture));
iPicWidth = WELS_ALIGN (kiPicWidth + (PADDING_LENGTH << 1), PICTURE_RESOLUTION_ALIGNMENT);
iPicHeight = WELS_ALIGN (kiPicHeight + (PADDING_LENGTH << 1), PICTURE_RESOLUTION_ALIGNMENT);
iPicChromaWidth = iPicWidth >> 1;
iPicChromaHeight = iPicHeight >> 1;
iLumaSize = iPicWidth * iPicHeight;
iChromaSize = iPicChromaWidth * iPicChromaHeight;
if (pCtx->pParam->bParseOnly) {
pPic->pBuffer[0] = pPic->pBuffer[1] = pPic->pBuffer[2] = NULL;
pPic->pData[0] = pPic->pData[1] = pPic->pData[2] = NULL;
pPic->iLinesize[0] = iPicWidth;
pPic->iLinesize[1] = pPic->iLinesize[2] = iPicChromaWidth;
} else {
pPic->pBuffer[0] = static_cast<uint8_t*> (pMa->WelsMallocz (iLumaSize /* luma */
+ (iChromaSize << 1) /* Cb,Cr */, "_pic->buffer[0]"));
WELS_VERIFY_RETURN_PROC_IF (NULL, NULL == pPic->pBuffer[0], FreePicture (pPic, pMa));
memset (pPic->pBuffer[0], 128, (iLumaSize + (iChromaSize << 1)));
pPic->iLinesize[0] = iPicWidth;
pPic->iLinesize[1] = pPic->iLinesize[2] = iPicChromaWidth;
pPic->pBuffer[1] = pPic->pBuffer[0] + iLumaSize;
pPic->pBuffer[2] = pPic->pBuffer[1] + iChromaSize;
pPic->pData[0] = pPic->pBuffer[0] + (1 + pPic->iLinesize[0]) * PADDING_LENGTH;
pPic->pData[1] = pPic->pBuffer[1] + /*WELS_ALIGN*/ (((1 + pPic->iLinesize[1]) * PADDING_LENGTH) >> 1);
pPic->pData[2] = pPic->pBuffer[2] + /*WELS_ALIGN*/ (((1 + pPic->iLinesize[2]) * PADDING_LENGTH) >> 1);
}
pPic->iPlanes = 3; // yv12 in default
pPic->iWidthInPixel = kiPicWidth;
pPic->iHeightInPixel = kiPicHeight;
pPic->iFrameNum = -1;
pPic->bAvailableFlag = true;
uint32_t uiMbWidth = (kiPicWidth + 15) >> 4;
uint32_t uiMbHeight = (kiPicHeight + 15) >> 4;
uint32_t uiMbCount = uiMbWidth * uiMbHeight;
pPic->pMbType = (uint32_t*)pMa->WelsMallocz (uiMbCount * sizeof (uint32_t),
"pPic->pMbType");
pPic->pMv[LIST_0] = (int16_t (*)[16][2])pMa->WelsMallocz (uiMbCount * sizeof (
int16_t) * MV_A * MB_BLOCK4x4_NUM, "pPic->pMv[]");
pPic->pMv[LIST_1] = (int16_t (*)[16][2])pMa->WelsMallocz (uiMbCount * sizeof (
int16_t) * MV_A * MB_BLOCK4x4_NUM, "pPic->pMv[]");
pPic->pRefIndex[LIST_0] = (int8_t (*)[16])pMa->WelsMallocz (uiMbCount * sizeof (
int8_t) * MB_BLOCK4x4_NUM, "pCtx->sMb.pRefIndex[]");
pPic->pRefIndex[LIST_1] = (int8_t (*)[16])pMa->WelsMallocz (uiMbCount * sizeof (
int8_t) * MB_BLOCK4x4_NUM, "pCtx->sMb.pRefIndex[]");
return pPic;
}
void FreePicture (PPicture pPic, CMemoryAlign* pMa) {
if (NULL != pPic) {
if (pPic->pBuffer[0]) {
pMa->WelsFree (pPic->pBuffer[0], "pPic->pBuffer[0]");
pPic->pBuffer[0] = NULL;
}
if (pPic->pMbType) {
pMa->WelsFree (pPic->pMbType, "pPic->pMbType");
pPic->pMbType = NULL;
}
for (int32_t listIdx = LIST_0; listIdx < LIST_A; ++listIdx) {
if (pPic->pMv[listIdx]) {
pMa->WelsFree (pPic->pMv[listIdx], "pPic->pMv[]");
pPic->pMv[listIdx] = NULL;
}
if (pPic->pRefIndex[listIdx]) {
pMa->WelsFree (pPic->pRefIndex[listIdx], "pPic->pRefIndex[]");
pPic->pRefIndex[listIdx] = NULL;
}
}
pMa->WelsFree (pPic, "pPic");
pPic = NULL;
}
}
PPicture PrefetchPic (PPicBuff pPicBuf) {
int32_t iPicIdx = 0;
PPicture pPic = NULL;
if (pPicBuf->iCapacity == 0) {
return NULL;
}
for (iPicIdx = pPicBuf->iCurrentIdx + 1; iPicIdx < pPicBuf->iCapacity ; ++iPicIdx) {
if (pPicBuf->ppPic[iPicIdx] != NULL && pPicBuf->ppPic[iPicIdx]->bAvailableFlag
&& !pPicBuf->ppPic[iPicIdx]->bUsedAsRef) {
pPic = pPicBuf->ppPic[iPicIdx];
break;
}
}
if (pPic != NULL) {
pPicBuf->iCurrentIdx = iPicIdx;
return pPic;
}
for (iPicIdx = 0 ; iPicIdx <= pPicBuf->iCurrentIdx ; ++iPicIdx) {
if (pPicBuf->ppPic[iPicIdx] != NULL && pPicBuf->ppPic[iPicIdx]->bAvailableFlag
&& !pPicBuf->ppPic[iPicIdx]->bUsedAsRef) {
pPic = pPicBuf->ppPic[iPicIdx];
break;
}
}
pPicBuf->iCurrentIdx = iPicIdx;
return pPic;
}
} // namespace WelsDec