| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| |
| #include <stdint.h> |
| |
| #include "mp4dec_lib.h" |
| #include "vlc_decode.h" |
| #include "bitstream.h" |
| |
| #ifndef INT32_MAX |
| #define INT32_MAX 0x7fffffff |
| #endif |
| |
| #ifndef SIZE_MAX |
| #define SIZE_MAX ((size_t) -1) |
| #endif |
| |
| #define OSCL_DISABLE_WARNING_CONDITIONAL_IS_CONSTANT |
| |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| #define QCIF_MBS 99 |
| #define QCIF_BS (4*QCIF_MBS) |
| #define QCIF_MB_ROWS 11 |
| extern uint8 IMEM_sliceNo[QCIF_MBS]; |
| extern uint8 IMEM_acPredFlag[QCIF_MBS]; |
| extern uint8 IMEM_headerInfo_Mode[QCIF_MBS]; |
| extern uint8 IMEM_headerInfo_CBP[QCIF_MBS]; |
| extern int IMEM_headerInfo_QPMB[QCIF_MBS]; |
| extern MacroBlock IMEM_mblock; |
| extern MOT IMEM_motX[QCIF_BS]; |
| extern MOT IMEM_motY[QCIF_BS]; |
| extern BitstreamDecVideo IMEM_BitstreamDecVideo[4]; |
| extern typeDCStore IMEM_predDC[QCIF_MBS]; |
| extern typeDCACStore IMEM_predDCAC_col[QCIF_MB_ROWS+1]; |
| |
| extern VideoDecData IMEM_VideoDecData[1]; |
| extern Vop IMEM_currVop[1]; |
| extern Vop IMEM_prevVop[1]; |
| extern PIXEL IMEM_currVop_yChan[QCIF_MBS*128*3]; |
| extern PIXEL IMEM_prevVop_yChan[QCIF_MBS*128*3]; |
| extern uint8 IMEM_pstprcTypCur[6*QCIF_MBS]; |
| extern uint8 IMEM_pstprcTypPrv[6*QCIF_MBS]; |
| |
| |
| extern Vop IMEM_vopHEADER[2]; |
| extern Vol IMEM_VOL[2]; |
| extern Vop IMEM_vopHeader[2][1]; |
| extern Vol IMEM_vol[2][1]; |
| |
| #endif |
| |
| /* ======================================================================== */ |
| /* Function : PVInitVideoDecoder() */ |
| /* Date : 04/11/2000, 08/29/2000 */ |
| /* Purpose : Initialization of the MPEG-4 video decoder library. */ |
| /* The return type is Bool instead of PV_STATUS because */ |
| /* we don't want to expose PV_STATUS to (outside) programmers */ |
| /* that use our decoder library SDK. */ |
| /* In/out : */ |
| /* Return : PV_TRUE if successed, PV_FALSE if failed. */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| OSCL_EXPORT_REF Bool PVInitVideoDecoder(VideoDecControls *decCtrl, uint8 *volbuf[], |
| int32 *volbuf_size, int nLayers, int width, int height, MP4DecodingMode mode) |
| { |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| Bool status = PV_TRUE; |
| int idx; |
| BitstreamDecVideo *stream; |
| |
| |
| oscl_memset(decCtrl, 0, sizeof(VideoDecControls)); /* fix a size bug. 03/28/2001 */ |
| decCtrl->nLayers = nLayers; |
| for (idx = 0; idx < nLayers; idx++) |
| { |
| decCtrl->volbuf[idx] = volbuf[idx]; |
| decCtrl->volbuf_size[idx] = volbuf_size[idx]; |
| } |
| |
| /* memory allocation & initialization */ |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video = IMEM_VideoDecData; |
| #else |
| video = (VideoDecData *) oscl_malloc(sizeof(VideoDecData)); |
| #endif |
| if (video != NULL) |
| { |
| oscl_memset(video, 0, sizeof(VideoDecData)); |
| video->memoryUsage = sizeof(VideoDecData); |
| video->numberOfLayers = nLayers; |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->vol = (Vol **) IMEM_VOL; |
| #else |
| if ((size_t)nLayers > SIZE_MAX / sizeof(Vol *)) { |
| status = PV_FALSE; |
| goto fail; |
| } |
| |
| video->vol = (Vol **) oscl_malloc(nLayers * sizeof(Vol *)); |
| #endif |
| if (video->vol == NULL) status = PV_FALSE; |
| video->memoryUsage += nLayers * sizeof(Vol *); |
| |
| |
| /* we need to setup this pointer for the application to */ |
| /* pass it around. */ |
| decCtrl->videoDecoderData = (void *) video; |
| video->videoDecControls = decCtrl; /* yes. we have a cyclic */ |
| /* references here :) */ |
| |
| /* Allocating Vop space, this has to change when we add */ |
| /* spatial scalability to the decoder */ |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->currVop = IMEM_currVop; |
| if (video->currVop == NULL) status = PV_FALSE; |
| else oscl_memset(video->currVop, 0, sizeof(Vop)); |
| video->prevVop = IMEM_prevVop; |
| if (video->prevVop == NULL) status = PV_FALSE; |
| else oscl_memset(video->prevVop, 0, sizeof(Vop)); |
| video->memoryUsage += (sizeof(Vop) * 2); |
| video->vopHeader = (Vop **) IMEM_vopHEADER; |
| #else |
| |
| video->currVop = (Vop *) oscl_malloc(sizeof(Vop)); |
| if (video->currVop == NULL) status = PV_FALSE; |
| else oscl_memset(video->currVop, 0, sizeof(Vop)); |
| video->prevVop = (Vop *) oscl_malloc(sizeof(Vop)); |
| if (video->prevVop == NULL) status = PV_FALSE; |
| else oscl_memset(video->prevVop, 0, sizeof(Vop)); |
| video->memoryUsage += (sizeof(Vop) * 2); |
| |
| if ((size_t)nLayers > SIZE_MAX / sizeof(Vop *)) { |
| status = PV_FALSE; |
| goto fail; |
| } |
| |
| video->vopHeader = (Vop **) oscl_malloc(sizeof(Vop *) * nLayers); |
| #endif |
| if (video->vopHeader == NULL) status = PV_FALSE; |
| else oscl_memset(video->vopHeader, 0, sizeof(Vop *)*nLayers); |
| video->memoryUsage += (sizeof(Vop *) * nLayers); |
| |
| video->initialized = PV_FALSE; |
| /* Decode the header to get all information to allocate data */ |
| if (status == PV_TRUE) |
| { |
| /* initialize decoded frame counter. 04/24/2001 */ |
| video->frame_idx = -1; |
| |
| |
| for (idx = 0; idx < nLayers; idx++) |
| { |
| |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->vopHeader[idx] = IMEM_vopHeader[idx]; |
| #else |
| video->vopHeader[idx] = (Vop *) oscl_malloc(sizeof(Vop)); |
| #endif |
| if (video->vopHeader[idx] == NULL) |
| { |
| status = PV_FALSE; |
| break; |
| } |
| else |
| { |
| oscl_memset(video->vopHeader[idx], 0, sizeof(Vop)); |
| video->vopHeader[idx]->timeStamp = 0; |
| video->memoryUsage += (sizeof(Vop)); |
| } |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->vol[idx] = IMEM_vol[idx]; |
| video->memoryUsage += sizeof(Vol); |
| oscl_memset(video->vol[idx], 0, sizeof(Vol)); |
| if (video->vol[idx] == NULL) status = PV_FALSE; |
| stream = IMEM_BitstreamDecVideo; |
| #else |
| video->vol[idx] = (Vol *) oscl_malloc(sizeof(Vol)); |
| if (video->vol[idx] == NULL) |
| { |
| status = PV_FALSE; |
| break; |
| } |
| else |
| { |
| video->memoryUsage += sizeof(Vol); |
| oscl_memset(video->vol[idx], 0, sizeof(Vol)); |
| } |
| |
| stream = (BitstreamDecVideo *) oscl_malloc(sizeof(BitstreamDecVideo)); |
| #endif |
| video->memoryUsage += sizeof(BitstreamDecVideo); |
| if (stream == NULL) |
| { |
| status = PV_FALSE; |
| break; |
| } |
| else |
| { |
| int32 buffer_size; |
| if ((buffer_size = BitstreamOpen(stream, idx)) < 0) |
| { |
| mp4dec_log("InitVideoDecoder(): Can't allocate bitstream buffer.\n"); |
| status = PV_FALSE; |
| break; |
| } |
| video->memoryUsage += buffer_size; |
| video->vol[idx]->bitstream = stream; |
| video->vol[idx]->volID = idx; |
| video->vol[idx]->timeInc_offset = 0; /* 11/12/01 */ |
| video->vlcDecCoeffIntra = &VlcDecTCOEFShortHeader; |
| video->vlcDecCoeffInter = &VlcDecTCOEFShortHeader; |
| if (mode == MPEG4_MODE) |
| { |
| /* Set up VOL header bitstream for frame-based decoding. 08/30/2000 */ |
| BitstreamReset(stream, decCtrl->volbuf[idx], decCtrl->volbuf_size[idx]); |
| |
| switch (DecodeVOLHeader(video, idx)) |
| { |
| case PV_SUCCESS : |
| if (status == PV_TRUE) |
| status = PV_TRUE; /* we want to make sure that if first layer is bad, second layer is good return PV_FAIL */ |
| else |
| status = PV_FALSE; |
| break; |
| #ifdef PV_TOLERATE_VOL_ERRORS |
| case PV_BAD_VOLHEADER: |
| status = PV_TRUE; |
| break; |
| #endif |
| default : |
| status = PV_FALSE; |
| break; |
| } |
| |
| } |
| else |
| { |
| video->shortVideoHeader = PV_TRUE; |
| } |
| |
| if (video->shortVideoHeader == PV_TRUE) |
| { |
| mode = H263_MODE; |
| /* Set max width and height. In H.263 mode, we use */ |
| /* volbuf_size[0] to pass in width and volbuf_size[1] */ |
| /* to pass in height. 04/23/2001 */ |
| video->prevVop->temporalRef = 0; /* 11/12/01 */ |
| /* Compute some convenience variables: 04/23/2001 */ |
| video->vol[idx]->quantType = 0; |
| video->vol[idx]->quantPrecision = 5; |
| video->vol[idx]->errorResDisable = 1; |
| video->vol[idx]->dataPartitioning = 0; |
| video->vol[idx]->useReverseVLC = 0; |
| video->intra_acdcPredDisable = 1; |
| video->vol[idx]->scalability = 0; |
| video->size = (int32)width * height; |
| |
| video->displayWidth = video->width = width; |
| video->displayHeight = video->height = height; |
| #ifdef PV_ANNEX_IJKT_SUPPORT |
| video->modified_quant = 0; |
| video->advanced_INTRA = 0; |
| video->deblocking = 0; |
| video->slice_structure = 0; |
| #endif |
| } |
| |
| } |
| } |
| |
| } |
| if (status != PV_FALSE) |
| { |
| status = PVAllocVideoData(decCtrl, width, height, nLayers); |
| video->initialized = PV_TRUE; |
| } |
| } |
| else |
| { |
| status = PV_FALSE; |
| } |
| |
| fail: |
| if (status == PV_FALSE) PVCleanUpVideoDecoder(decCtrl); |
| |
| return status; |
| } |
| |
| Bool PVAllocVideoData(VideoDecControls *decCtrl, int width, int height, int nLayers) |
| { |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| Bool status = PV_TRUE; |
| int nTotalMB; |
| int nMBPerRow; |
| int32 size; |
| |
| if (video->shortVideoHeader == PV_TRUE) |
| { |
| video->displayWidth = video->width = width; |
| video->displayHeight = video->height = height; |
| |
| video->nMBPerRow = |
| video->nMBinGOB = video->width / MB_SIZE; |
| video->nMBPerCol = |
| video->nGOBinVop = video->height / MB_SIZE; |
| video->nTotalMB = |
| video->nMBPerRow * video->nMBPerCol; |
| } |
| |
| if (((uint64_t)video->width * video->height) > (uint64_t)INT32_MAX / sizeof(PIXEL)) { |
| return PV_FALSE; |
| } |
| |
| size = (int32)sizeof(PIXEL) * video->width * video->height; |
| #ifdef PV_MEMORY_POOL |
| decCtrl->size = size; |
| #else |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->currVop->yChan = IMEM_currVop_yChan; /* Allocate memory for all VOP OKA 3/2/1*/ |
| if (video->currVop->yChan == NULL) status = PV_FALSE; |
| video->currVop->uChan = video->currVop->yChan + size; |
| video->currVop->vChan = video->currVop->uChan + (size >> 2); |
| |
| video->prevVop->yChan = IMEM_prevVop_yChan; /* Allocate memory for all VOP OKA 3/2/1*/ |
| if (video->prevVop->yChan == NULL) status = PV_FALSE; |
| video->prevVop->uChan = video->prevVop->yChan + size; |
| video->prevVop->vChan = video->prevVop->uChan + (size >> 2); |
| #else |
| if (size > INT32_MAX / 3 * 2) { |
| return PV_FALSE; |
| } |
| video->currVop->yChan = (PIXEL *) oscl_malloc(size * 3 / 2); /* Allocate memory for all VOP OKA 3/2/1*/ |
| if (video->currVop->yChan == NULL) status = PV_FALSE; |
| |
| video->currVop->uChan = video->currVop->yChan + size; |
| video->currVop->vChan = video->currVop->uChan + (size >> 2); |
| video->prevVop->yChan = (PIXEL *) oscl_malloc(size * 3 / 2); /* Allocate memory for all VOP OKA 3/2/1*/ |
| if (video->prevVop->yChan == NULL) status = PV_FALSE; |
| |
| video->prevVop->uChan = video->prevVop->yChan + size; |
| video->prevVop->vChan = video->prevVop->uChan + (size >> 2); |
| #endif |
| video->memoryUsage += (size * 3); |
| #endif // MEMORY_POOL |
| /* Note that baseVop, enhcVop is only used to hold enhancement */ |
| /* layer header information. 05/04/2000 */ |
| if (nLayers > 1) |
| { |
| video->prevEnhcVop = (Vop *) oscl_malloc(sizeof(Vop)); |
| video->memoryUsage += (sizeof(Vop)); |
| if (video->prevEnhcVop == NULL) |
| { |
| status = PV_FALSE; |
| } |
| else |
| { |
| oscl_memset(video->prevEnhcVop, 0, sizeof(Vop)); |
| #ifndef PV_MEMORY_POOL |
| if (size > INT32_MAX / 3 * 2) { |
| return PV_FALSE; |
| } |
| |
| video->prevEnhcVop->yChan = (PIXEL *) oscl_malloc(size * 3 / 2); /* Allocate memory for all VOP OKA 3/2/1*/ |
| if (video->prevEnhcVop->yChan == NULL) status = PV_FALSE; |
| video->prevEnhcVop->uChan = video->prevEnhcVop->yChan + size; |
| video->prevEnhcVop->vChan = video->prevEnhcVop->uChan + (size >> 2); |
| video->memoryUsage += (3 * size / 2); |
| #endif |
| } |
| } |
| |
| /* Allocating space for slices, AC prediction flag, and */ |
| /* AC/DC prediction storage */ |
| nTotalMB = video->nTotalMB; |
| nMBPerRow = video->nMBPerRow; |
| |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->sliceNo = (uint8 *)(IMEM_sliceNo); |
| if (video->sliceNo == NULL) status = PV_FALSE; |
| video->memoryUsage += nTotalMB; |
| video->acPredFlag = (uint8 *)(IMEM_acPredFlag); |
| if (video->acPredFlag == NULL) status = PV_FALSE; |
| video->memoryUsage += (nTotalMB); |
| video->predDC = (typeDCStore *)(IMEM_predDC); |
| if (video->predDC == NULL) status = PV_FALSE; |
| video->memoryUsage += (nTotalMB * sizeof(typeDCStore)); |
| video->predDCAC_col = (typeDCACStore *)(IMEM_predDCAC_col); |
| if (video->predDCAC_col == NULL) status = PV_FALSE; |
| video->memoryUsage += ((nMBPerRow + 1) * sizeof(typeDCACStore)); |
| video->predDCAC_row = video->predDCAC_col + 1; |
| video->headerInfo.Mode = (uint8 *)(IMEM_headerInfo_Mode); |
| if (video->headerInfo.Mode == NULL) status = PV_FALSE; |
| video->memoryUsage += nTotalMB; |
| video->headerInfo.CBP = (uint8 *)(IMEM_headerInfo_CBP); |
| if (video->headerInfo.CBP == NULL) status = PV_FALSE; |
| video->memoryUsage += nTotalMB; |
| video->QPMB = (int *)(IMEM_headerInfo_QPMB); |
| if (video->QPMB == NULL) status = PV_FALSE; |
| video->memoryUsage += (nTotalMB * sizeof(int)); |
| video->mblock = &IMEM_mblock; |
| if (video->mblock == NULL) status = PV_FALSE; |
| oscl_memset(video->mblock->block, 0, sizeof(int16)*6*NCOEFF_BLOCK); // Aug 23,2005 |
| |
| video->memoryUsage += sizeof(MacroBlock); |
| video->motX = (MOT *)(IMEM_motX); |
| if (video->motX == NULL) status = PV_FALSE; |
| video->motY = (MOT *)(IMEM_motY); |
| if (video->motY == NULL) status = PV_FALSE; |
| video->memoryUsage += (sizeof(MOT) * 8 * nTotalMB); |
| #else |
| video->sliceNo = (uint8 *) oscl_malloc(nTotalMB); |
| if (video->sliceNo == NULL) status = PV_FALSE; |
| video->memoryUsage += nTotalMB; |
| |
| video->acPredFlag = (uint8 *) oscl_malloc(nTotalMB * sizeof(uint8)); |
| if (video->acPredFlag == NULL) status = PV_FALSE; |
| video->memoryUsage += (nTotalMB); |
| |
| if ((size_t)nTotalMB > SIZE_MAX / sizeof(typeDCStore)) { |
| return PV_FALSE; |
| } |
| video->predDC = (typeDCStore *) oscl_malloc(nTotalMB * sizeof(typeDCStore)); |
| if (video->predDC == NULL) status = PV_FALSE; |
| video->memoryUsage += (nTotalMB * sizeof(typeDCStore)); |
| |
| if (nMBPerRow > INT32_MAX - 1 |
| || (size_t)(nMBPerRow + 1) > SIZE_MAX / sizeof(typeDCACStore)) { |
| return PV_FALSE; |
| } |
| video->predDCAC_col = (typeDCACStore *) oscl_malloc((nMBPerRow + 1) * sizeof(typeDCACStore)); |
| if (video->predDCAC_col == NULL) status = PV_FALSE; |
| video->memoryUsage += ((nMBPerRow + 1) * sizeof(typeDCACStore)); |
| |
| /* element zero will be used for storing vertical (col) AC coefficients */ |
| /* the rest will be used for storing horizontal (row) AC coefficients */ |
| video->predDCAC_row = video->predDCAC_col + 1; /* ACDC */ |
| |
| /* Allocating HeaderInfo structure & Quantizer array */ |
| video->headerInfo.Mode = (uint8 *) oscl_malloc(nTotalMB); |
| if (video->headerInfo.Mode == NULL) status = PV_FALSE; |
| video->memoryUsage += nTotalMB; |
| video->headerInfo.CBP = (uint8 *) oscl_malloc(nTotalMB); |
| if (video->headerInfo.CBP == NULL) status = PV_FALSE; |
| video->memoryUsage += nTotalMB; |
| |
| if ((size_t)nTotalMB > SIZE_MAX / sizeof(int16)) { |
| return PV_FALSE; |
| } |
| video->QPMB = (int16 *) oscl_malloc(nTotalMB * sizeof(int16)); |
| if (video->QPMB == NULL) status = PV_FALSE; |
| video->memoryUsage += (nTotalMB * sizeof(int)); |
| |
| /* Allocating macroblock space */ |
| video->mblock = (MacroBlock *) oscl_malloc(sizeof(MacroBlock)); |
| if (video->mblock == NULL) |
| { |
| status = PV_FALSE; |
| } |
| else |
| { |
| oscl_memset(video->mblock->block, 0, sizeof(int16)*6*NCOEFF_BLOCK); // Aug 23,2005 |
| |
| video->memoryUsage += sizeof(MacroBlock); |
| } |
| /* Allocating motion vector space */ |
| if ((size_t)nTotalMB > SIZE_MAX / (sizeof(MOT) * 4)) { |
| return PV_FALSE; |
| } |
| video->motX = (MOT *) oscl_malloc(sizeof(MOT) * 4 * nTotalMB); |
| if (video->motX == NULL) status = PV_FALSE; |
| video->motY = (MOT *) oscl_malloc(sizeof(MOT) * 4 * nTotalMB); |
| if (video->motY == NULL) status = PV_FALSE; |
| video->memoryUsage += (sizeof(MOT) * 8 * nTotalMB); |
| #endif |
| |
| #ifdef PV_POSTPROC_ON |
| /* Allocating space for post-processing Mode */ |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| video->pstprcTypCur = IMEM_pstprcTypCur; |
| video->memoryUsage += (nTotalMB * 6); |
| if (video->pstprcTypCur == NULL) |
| { |
| status = PV_FALSE; |
| } |
| else |
| { |
| oscl_memset(video->pstprcTypCur, 0, 4*nTotalMB + 2*nTotalMB); |
| } |
| |
| video->pstprcTypPrv = IMEM_pstprcTypPrv; |
| video->memoryUsage += (nTotalMB * 6); |
| if (video->pstprcTypPrv == NULL) |
| { |
| status = PV_FALSE; |
| } |
| else |
| { |
| oscl_memset(video->pstprcTypPrv, 0, nTotalMB*6); |
| } |
| |
| #else |
| if (nTotalMB > INT32_MAX / 6) { |
| return PV_FALSE; |
| } |
| video->pstprcTypCur = (uint8 *) oscl_malloc(nTotalMB * 6); |
| video->memoryUsage += (nTotalMB * 6); |
| if (video->pstprcTypCur == NULL) |
| { |
| status = PV_FALSE; |
| } |
| else |
| { |
| oscl_memset(video->pstprcTypCur, 0, 4*nTotalMB + 2*nTotalMB); |
| } |
| |
| video->pstprcTypPrv = (uint8 *) oscl_malloc(nTotalMB * 6); |
| video->memoryUsage += (nTotalMB * 6); |
| if (video->pstprcTypPrv == NULL) |
| { |
| status = PV_FALSE; |
| } |
| else |
| { |
| oscl_memset(video->pstprcTypPrv, 0, nTotalMB*6); |
| } |
| |
| #endif |
| |
| #endif |
| |
| /* initialize the decoder library */ |
| video->prevVop->predictionType = I_VOP; |
| video->prevVop->timeStamp = 0; |
| #ifndef PV_MEMORY_POOL |
| oscl_memset(video->prevVop->yChan, 16, sizeof(uint8)*size); /* 10/31/01 */ |
| oscl_memset(video->prevVop->uChan, 128, sizeof(uint8)*size / 2); |
| |
| oscl_memset(video->currVop->yChan, 0, sizeof(uint8)*size*3 / 2); |
| if (nLayers > 1) |
| { |
| oscl_memset(video->prevEnhcVop->yChan, 0, sizeof(uint8)*size*3 / 2); |
| video->prevEnhcVop->timeStamp = 0; |
| } |
| video->concealFrame = video->prevVop->yChan; /* 07/07/2001 */ |
| decCtrl->outputFrame = video->prevVop->yChan; /* 06/19/2002 */ |
| #endif |
| |
| /* always start from base layer */ |
| video->currLayer = 0; |
| return status; |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVResetVideoDecoder() */ |
| /* Date : 01/14/2002 */ |
| /* Purpose : Reset video timestamps */ |
| /* In/out : */ |
| /* Return : PV_TRUE if successed, PV_FALSE if failed. */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool PVResetVideoDecoder(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| int idx; |
| |
| for (idx = 0; idx < decCtrl->nLayers; idx++) |
| { |
| video->vopHeader[idx]->timeStamp = 0; |
| } |
| video->prevVop->timeStamp = 0; |
| if (decCtrl->nLayers > 1) |
| video->prevEnhcVop->timeStamp = 0; |
| |
| oscl_memset(video->mblock->block, 0, sizeof(int16)*6*NCOEFF_BLOCK); // Aug 23,2005 |
| |
| return PV_TRUE; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVCleanUpVideoDecoder() */ |
| /* Date : 04/11/2000, 08/29/2000 */ |
| /* Purpose : Cleanup of the MPEG-4 video decoder library. */ |
| /* In/out : */ |
| /* Return : PV_TRUE if successed, PV_FALSE if failed. */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| OSCL_EXPORT_REF Bool PVCleanUpVideoDecoder(VideoDecControls *decCtrl) |
| { |
| int idx; |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| #ifdef DEC_INTERNAL_MEMORY_OPT |
| if (video) |
| { |
| #ifdef PV_POSTPROC_ON |
| video->pstprcTypCur = NULL; |
| video->pstprcTypPrv = NULL; |
| #endif |
| |
| video->acPredFlag = NULL; |
| video->sliceNo = NULL; |
| video->motX = NULL; |
| video->motY = NULL; |
| video->mblock = NULL; |
| video->QPMB = NULL; |
| video->predDC = NULL; |
| video->predDCAC_row = NULL; |
| video->predDCAC_col = NULL; |
| video->headerInfo.Mode = NULL; |
| video->headerInfo.CBP = NULL; |
| if (video->numberOfLayers > 1) |
| { |
| if (video->prevEnhcVop) |
| { |
| video->prevEnhcVop->uChan = NULL; |
| video->prevEnhcVop->vChan = NULL; |
| if (video->prevEnhcVop->yChan) oscl_free(video->prevEnhcVop->yChan); |
| oscl_free(video->prevEnhcVop); |
| } |
| } |
| if (video->currVop) |
| { |
| video->currVop->uChan = NULL; |
| video->currVop->vChan = NULL; |
| if (video->currVop->yChan) |
| video->currVop->yChan = NULL; |
| video->currVop = NULL; |
| } |
| if (video->prevVop) |
| { |
| video->prevVop->uChan = NULL; |
| video->prevVop->vChan = NULL; |
| if (video->prevVop->yChan) |
| video->prevVop->yChan = NULL; |
| video->prevVop = NULL; |
| } |
| |
| if (video->vol) |
| { |
| for (idx = 0; idx < video->numberOfLayers; idx++) |
| { |
| if (video->vol[idx]) |
| { |
| BitstreamClose(video->vol[idx]->bitstream); |
| video->vol[idx]->bitstream = NULL; |
| video->vol[idx] = NULL; |
| } |
| video->vopHeader[idx] = NULL; |
| |
| } |
| video->vol = NULL; |
| video->vopHeader = NULL; |
| } |
| |
| video = NULL; |
| decCtrl->videoDecoderData = NULL; |
| } |
| |
| #else |
| |
| if (video) |
| { |
| #ifdef PV_POSTPROC_ON |
| if (video->pstprcTypCur) oscl_free(video->pstprcTypCur); |
| if (video->pstprcTypPrv) oscl_free(video->pstprcTypPrv); |
| #endif |
| if (video->predDC) oscl_free(video->predDC); |
| video->predDCAC_row = NULL; |
| if (video->predDCAC_col) oscl_free(video->predDCAC_col); |
| if (video->motX) oscl_free(video->motX); |
| if (video->motY) oscl_free(video->motY); |
| if (video->mblock) oscl_free(video->mblock); |
| if (video->QPMB) oscl_free(video->QPMB); |
| if (video->headerInfo.Mode) oscl_free(video->headerInfo.Mode); |
| if (video->headerInfo.CBP) oscl_free(video->headerInfo.CBP); |
| if (video->sliceNo) oscl_free(video->sliceNo); |
| if (video->acPredFlag) oscl_free(video->acPredFlag); |
| |
| if (video->numberOfLayers > 1) |
| { |
| if (video->prevEnhcVop) |
| { |
| video->prevEnhcVop->uChan = NULL; |
| video->prevEnhcVop->vChan = NULL; |
| if (video->prevEnhcVop->yChan) oscl_free(video->prevEnhcVop->yChan); |
| oscl_free(video->prevEnhcVop); |
| } |
| } |
| if (video->currVop) |
| { |
| |
| #ifndef PV_MEMORY_POOL |
| video->currVop->uChan = NULL; |
| video->currVop->vChan = NULL; |
| if (video->currVop->yChan) |
| oscl_free(video->currVop->yChan); |
| #endif |
| oscl_free(video->currVop); |
| } |
| if (video->prevVop) |
| { |
| #ifndef PV_MEMORY_POOL |
| video->prevVop->uChan = NULL; |
| video->prevVop->vChan = NULL; |
| if (video->prevVop->yChan) |
| oscl_free(video->prevVop->yChan); |
| #endif |
| oscl_free(video->prevVop); |
| } |
| |
| if (video->vol) |
| { |
| for (idx = 0; idx < video->numberOfLayers; idx++) |
| { |
| if (video->vol[idx]) |
| { |
| if (video->vol[idx]->bitstream) |
| { |
| BitstreamClose(video->vol[idx]->bitstream); |
| oscl_free(video->vol[idx]->bitstream); |
| } |
| oscl_free(video->vol[idx]); |
| } |
| |
| } |
| oscl_free(video->vol); |
| } |
| |
| for (idx = 0; idx < video->numberOfLayers; idx++) |
| { |
| if (video->vopHeader[idx]) oscl_free(video->vopHeader[idx]); |
| } |
| |
| if (video->vopHeader) oscl_free(video->vopHeader); |
| |
| oscl_free(video); |
| decCtrl->videoDecoderData = NULL; |
| } |
| #endif |
| return PV_TRUE; |
| } |
| /* ======================================================================== */ |
| /* Function : PVGetVideoDimensions() */ |
| /* Date : 040505 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : the display_width and display_height of */ |
| /* the frame in the current layer. */ |
| /* Note : This is not a macro or inline function because we do */ |
| /* not want to expose our internal data structure. */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| OSCL_EXPORT_REF void PVGetVideoDimensions(VideoDecControls *decCtrl, int32 *display_width, int32 *display_height) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| *display_width = video->displayWidth; |
| *display_height = video->displayHeight; |
| } |
| |
| OSCL_EXPORT_REF void PVGetBufferDimensions(VideoDecControls *decCtrl, int32 *width, int32 *height) { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| *width = video->width; |
| *height = video->height; |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVGetVideoTimeStamp() */ |
| /* Date : 04/27/2000, 08/29/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : current time stamp in millisecond. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| uint32 PVGetVideoTimeStamp(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| return video->currTimestamp; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVSetPostProcType() */ |
| /* Date : 07/07/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : Set post-processing filter type. */ |
| /* Note : */ |
| /* Modified : . 08/29/2000 changes the name for consistency. */ |
| /* ======================================================================== */ |
| OSCL_EXPORT_REF void PVSetPostProcType(VideoDecControls *decCtrl, int mode) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| video->postFilterType = mode; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVGetDecBitrate() */ |
| /* Date : 08/23/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function returns the average bits per second. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| int PVGetDecBitrate(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| int idx; |
| int32 sum = 0; |
| |
| for (idx = 0; idx < BITRATE_AVERAGE_WINDOW; idx++) |
| { |
| sum += video->nBitsPerVop[idx]; |
| } |
| sum = (sum * video->frameRate) / (10 * BITRATE_AVERAGE_WINDOW); |
| return (int) sum; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVGetDecFramerate() */ |
| /* Date : 08/23/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function returns the average frame per 10 second. */ |
| /* Note : The fps can be calculated by PVGetDecFramerate()/10 */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| int PVGetDecFramerate(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| |
| return video->frameRate; |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVGetOutputFrame() */ |
| /* Date : 05/07/2001 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function returns the pointer to the output frame */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| uint8 *PVGetDecOutputFrame(VideoDecControls *decCtrl) |
| { |
| return decCtrl->outputFrame; |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVGetLayerID() */ |
| /* Date : 07/09/2001 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function returns decoded frame layer id (BASE/ENHANCE) */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| int PVGetLayerID(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| return video->currLayer; |
| } |
| /* ======================================================================== */ |
| /* Function : PVGetDecMemoryUsage() */ |
| /* Date : 08/23/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function returns the amount of memory used. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| int32 PVGetDecMemoryUsage(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| return video->memoryUsage; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVGetDecBitstreamMode() */ |
| /* Date : 08/23/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function returns the decoding mode of the baselayer */ |
| /* bitstream. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| OSCL_EXPORT_REF MP4DecodingMode PVGetDecBitstreamMode(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| if (video->shortVideoHeader) |
| { |
| return H263_MODE; |
| } |
| else |
| { |
| return MPEG4_MODE; |
| } |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVExtractVolHeader() */ |
| /* Date : 08/29/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : Extract vol header of the bitstream from buffer[]. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool PVExtractVolHeader(uint8 *video_buffer, uint8 *vol_header, int32 *vol_header_size) |
| { |
| int idx = -1; |
| uint8 start_code_prefix[] = { 0x00, 0x00, 0x01 }; |
| uint8 h263_prefix[] = { 0x00, 0x00, 0x80 }; |
| |
| if (oscl_memcmp(h263_prefix, video_buffer, 3) == 0) /* we have short header stream */ |
| { |
| oscl_memcpy(vol_header, video_buffer, 32); |
| *vol_header_size = 32; |
| return TRUE; |
| } |
| else |
| { |
| if (oscl_memcmp(start_code_prefix, video_buffer, 3) || |
| (video_buffer[3] != 0xb0 && video_buffer[3] >= 0x20)) return FALSE; |
| |
| do |
| { |
| idx++; |
| while (oscl_memcmp(start_code_prefix, video_buffer + idx, 3)) |
| { |
| idx++; |
| if (idx + 3 >= *vol_header_size) goto quit; |
| } |
| } |
| while (video_buffer[idx+3] != 0xb3 && video_buffer[idx+3] != 0xb6); |
| |
| oscl_memcpy(vol_header, video_buffer, idx); |
| *vol_header_size = idx; |
| return TRUE; |
| } |
| |
| quit: |
| oscl_memcpy(vol_header, video_buffer, *vol_header_size); |
| return FALSE; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVLocateFrameHeader() */ |
| /* Date : 04/8/2005 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : Return the offset to the first SC in the buffer */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| int32 PVLocateFrameHeader(uint8 *ptr, int32 size) |
| { |
| int count = 0; |
| int32 i = size; |
| |
| if (size < 1) |
| { |
| return 0; |
| } |
| while (i--) |
| { |
| if ((count > 1) && (*ptr == 0x01)) |
| { |
| i += 2; |
| break; |
| } |
| |
| if (*ptr++) |
| count = 0; |
| else |
| count++; |
| } |
| return (size - (i + 1)); |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVLocateH263FrameHeader() */ |
| /* Date : 04/8/2005 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : Return the offset to the first SC in the buffer */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| int32 PVLocateH263FrameHeader(uint8 *ptr, int32 size) |
| { |
| int count = 0; |
| int32 i = size; |
| |
| if (size < 1) |
| { |
| return 0; |
| } |
| |
| while (i--) |
| { |
| if ((count > 1) && ((*ptr & 0xFC) == 0x80)) |
| { |
| i += 2; |
| break; |
| } |
| |
| if (*ptr++) |
| count = 0; |
| else |
| count++; |
| } |
| return (size - (i + 1)); |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVDecodeVideoFrame() */ |
| /* Date : 08/29/2000 */ |
| /* Purpose : Decode one video frame and return a YUV-12 image. */ |
| /* In/out : */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : 04/17/2001 removed PV_EOS, PV_END_OF_BUFFER */ |
| /* : 08/22/2002 break up into 2 functions PVDecodeVopHeader and */ |
| /* PVDecodeVopBody */ |
| /* ======================================================================== */ |
| OSCL_EXPORT_REF Bool PVDecodeVideoFrame(VideoDecControls *decCtrl, uint8 *buffer[], |
| uint32 timestamp[], int32 buffer_size[], uint use_ext_timestamp[], uint8 *currYUV) |
| { |
| PV_STATUS status = PV_FAIL; |
| VopHeaderInfo header_info; |
| |
| status = (PV_STATUS)PVDecodeVopHeader(decCtrl, buffer, timestamp, buffer_size, &header_info, use_ext_timestamp, currYUV); |
| if (status != PV_TRUE) |
| return PV_FALSE; |
| |
| if (PVDecodeVopBody(decCtrl, buffer_size) != PV_TRUE) |
| { |
| return PV_FALSE; |
| } |
| |
| return PV_TRUE; |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVDecodeVopHeader() */ |
| /* Date : 08/22/2002 */ |
| /* Purpose : Determine target layer and decode vop header, modified from */ |
| /* original PVDecodeVideoFrame. */ |
| /* In/out : */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool PVDecodeVopHeader(VideoDecControls *decCtrl, uint8 *buffer[], |
| uint32 timestamp[], int32 buffer_size[], VopHeaderInfo *header_info, uint use_ext_timestamp [], uint8 *currYUV) |
| { |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| Vol *currVol; |
| Vop *currVop = video->currVop; |
| Vop **vopHeader = video->vopHeader; |
| BitstreamDecVideo *stream; |
| |
| int target_layer; |
| |
| #ifdef PV_SUPPORT_TEMPORAL_SCALABILITY |
| PV_STATUS status = PV_FAIL; |
| int idx; |
| int32 display_time; |
| |
| /* decide which frame to decode next */ |
| if (decCtrl->nLayers > 1) |
| { |
| display_time = target_layer = -1; |
| for (idx = 0; idx < decCtrl->nLayers; idx++) |
| { |
| /* do we have data for this layer? */ |
| if (buffer_size[idx] <= 0) |
| { |
| timestamp[idx] = -1; |
| continue; |
| } |
| |
| /* did the application provide a timestamp for this vop? */ |
| if (timestamp[idx] < 0) |
| { |
| if (vopHeader[idx]->timeStamp < 0) |
| { |
| /* decode the timestamp in the bitstream */ |
| video->currLayer = idx; |
| stream = video->vol[idx]->bitstream; |
| BitstreamReset(stream, buffer[idx], buffer_size[idx]); |
| |
| while ((status = DecodeVOPHeader(video, vopHeader[idx], FALSE)) != PV_SUCCESS) |
| { |
| /* Try to find a VOP header in the buffer. 08/30/2000. */ |
| if (PVSearchNextM4VFrame(stream) != PV_SUCCESS) |
| { |
| /* if we don't have data for enhancement layer, */ |
| /* don't just stop. 09/07/2000. */ |
| buffer_size[idx] = 0; |
| break; |
| } |
| } |
| if (status == PV_SUCCESS) |
| { |
| vopHeader[idx]->timeStamp = |
| timestamp[idx] = CalcVopDisplayTime(video->vol[idx], vopHeader[idx], video->shortVideoHeader); |
| if (idx == 0) vopHeader[idx]->refSelectCode = 1; |
| } |
| } |
| else |
| { |
| /* We've decoded this vop header in the previous run already. */ |
| timestamp[idx] = vopHeader[idx]->timeStamp; |
| } |
| } |
| |
| /* Use timestamps to select the next VOP to be decoded */ |
| if (timestamp[idx] >= 0 && (display_time < 0 || display_time > timestamp[idx])) |
| { |
| display_time = timestamp[idx]; |
| target_layer = idx; |
| } |
| else if (display_time == timestamp[idx]) |
| { |
| /* we have to handle either SNR or spatial scalability here. */ |
| } |
| } |
| if (target_layer < 0) return PV_FALSE; |
| |
| /* set up for decoding the target layer */ |
| video->currLayer = target_layer; |
| currVol = video->vol[target_layer]; |
| video->bitstream = stream = currVol->bitstream; |
| |
| /* We need to decode the vop header if external timestamp */ |
| /* is provided. 10/04/2000 */ |
| if (vopHeader[target_layer]->timeStamp < 0) |
| { |
| stream = video->vol[target_layer]->bitstream; |
| BitstreamReset(stream, buffer[target_layer], buffer_size[target_layer]); |
| |
| while (DecodeVOPHeader(video, vopHeader[target_layer], TRUE) != PV_SUCCESS) |
| { |
| /* Try to find a VOP header in the buffer. 08/30/2000. */ |
| if (PVSearchNextM4VFrame(stream) != PV_SUCCESS) |
| { |
| /* if we don't have data for enhancement layer, */ |
| /* don't just stop. 09/07/2000. */ |
| buffer_size[target_layer] = 0; |
| break; |
| } |
| } |
| video->vol[target_layer]->timeInc_offset = vopHeader[target_layer]->timeInc; |
| video->vol[target_layer]->moduloTimeBase = timestamp[target_layer]; |
| vopHeader[target_layer]->timeStamp = timestamp[target_layer]; |
| if (target_layer == 0) vopHeader[target_layer]->refSelectCode = 1; |
| } |
| } |
| else /* base layer only decoding */ |
| { |
| #endif |
| video->currLayer = target_layer = 0; |
| currVol = video->vol[0]; |
| video->bitstream = stream = currVol->bitstream; |
| if (buffer_size[0] <= 0) return PV_FALSE; |
| BitstreamReset(stream, buffer[0], buffer_size[0]); |
| |
| if (video->shortVideoHeader) |
| { |
| while (DecodeShortHeader(video, vopHeader[0]) != PV_SUCCESS) |
| { |
| if (PVSearchNextH263Frame(stream) != PV_SUCCESS) |
| { |
| /* There is no vop header in the buffer, */ |
| /* clean bitstream buffer. 2/5/2001 */ |
| buffer_size[0] = 0; |
| if (video->initialized == PV_FALSE) |
| { |
| video->displayWidth = video->width = 0; |
| video->displayHeight = video->height = 0; |
| } |
| return PV_FALSE; |
| } |
| } |
| |
| if (use_ext_timestamp[0]) |
| { |
| /* MTB for H263 is absolute TR */ |
| /* following line is equivalent to round((timestamp[0]*30)/1001); 11/13/2001 */ |
| video->vol[0]->moduloTimeBase = 30 * ((timestamp[0] + 17) / 1001) + (30 * ((timestamp[0] + 17) % 1001) / 1001); |
| vopHeader[0]->timeStamp = timestamp[0]; |
| } |
| else |
| vopHeader[0]->timeStamp = CalcVopDisplayTime(currVol, vopHeader[0], video->shortVideoHeader); |
| } |
| else |
| { |
| while (DecodeVOPHeader(video, vopHeader[0], FALSE) != PV_SUCCESS) |
| { |
| /* Try to find a VOP header in the buffer. 08/30/2000. */ |
| if (PVSearchNextM4VFrame(stream) != PV_SUCCESS) |
| { |
| /* There is no vop header in the buffer, */ |
| /* clean bitstream buffer. 2/5/2001 */ |
| buffer_size[0] = 0; |
| return PV_FALSE; |
| } |
| } |
| |
| if (use_ext_timestamp[0]) |
| { |
| video->vol[0]->timeInc_offset = vopHeader[0]->timeInc; |
| video->vol[0]->moduloTimeBase = timestamp[0]; /* 11/12/2001 */ |
| vopHeader[0]->timeStamp = timestamp[0]; |
| } |
| else |
| { |
| vopHeader[0]->timeStamp = CalcVopDisplayTime(currVol, vopHeader[0], video->shortVideoHeader); |
| } |
| } |
| |
| /* set up some base-layer only parameters */ |
| vopHeader[0]->refSelectCode = 1; |
| #ifdef PV_SUPPORT_TEMPORAL_SCALABILITY |
| } |
| #endif |
| timestamp[target_layer] = video->currTimestamp = vopHeader[target_layer]->timeStamp; |
| #ifdef PV_MEMORY_POOL |
| vopHeader[target_layer]->yChan = (PIXEL *)currYUV; |
| vopHeader[target_layer]->uChan = (PIXEL *)currYUV + decCtrl->size; |
| vopHeader[target_layer]->vChan = (PIXEL *)(vopHeader[target_layer]->uChan) + (decCtrl->size >> 2); |
| #else |
| vopHeader[target_layer]->yChan = currVop->yChan; |
| vopHeader[target_layer]->uChan = currVop->uChan; |
| vopHeader[target_layer]->vChan = currVop->vChan; |
| #endif |
| oscl_memcpy(currVop, vopHeader[target_layer], sizeof(Vop)); |
| |
| #ifdef PV_SUPPORT_TEMPORAL_SCALABILITY |
| vopHeader[target_layer]->timeStamp = -1; |
| #endif |
| /* put header info into the structure */ |
| header_info->currLayer = target_layer; |
| header_info->timestamp = video->currTimestamp; |
| header_info->frameType = (MP4FrameType)currVop->predictionType; |
| header_info->refSelCode = vopHeader[target_layer]->refSelectCode; |
| header_info->quantizer = currVop->quantizer; |
| /***************************************/ |
| |
| return PV_TRUE; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVDecodeVopBody() */ |
| /* Date : 08/22/2002 */ |
| /* Purpose : Decode vop body after the header is decoded, modified from */ |
| /* original PVDecodeVideoFrame. */ |
| /* In/out : */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool PVDecodeVopBody(VideoDecControls *decCtrl, int32 buffer_size[]) |
| { |
| PV_STATUS status = PV_FAIL; |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| int target_layer = video->currLayer; |
| Vol *currVol = video->vol[target_layer]; |
| Vop *currVop = video->currVop; |
| Vop *prevVop = video->prevVop; |
| Vop *tempVopPtr; |
| int bytes_consumed = 0; /* Record how many bits we used in the buffer. 04/24/2001 */ |
| |
| int idx; |
| |
| if (currVop->vopCoded == 0) /* 07/03/2001 */ |
| { |
| PV_BitstreamByteAlign(currVol->bitstream); |
| /* We should always clear up bitstream buffer. 10/10/2000 */ |
| bytes_consumed = (getPointer(currVol->bitstream) + 7) >> 3; |
| |
| if (bytes_consumed > currVol->bitstream->data_end_pos) |
| { |
| bytes_consumed = currVol->bitstream->data_end_pos; |
| } |
| |
| if (bytes_consumed < buffer_size[target_layer]) |
| { |
| /* If we only consume part of the bits in the buffer, take those */ |
| /* out. 04/24/2001 */ |
| /* oscl_memcpy(buffer[target_layer], buffer[target_layer]+bytes_consumed, |
| (buffer_size[target_layer]-=bytes_consumed)); */ |
| buffer_size[target_layer] -= bytes_consumed; |
| } |
| else |
| { |
| buffer_size[target_layer] = 0; |
| } |
| #ifdef PV_MEMORY_POOL |
| |
| if (target_layer) |
| { |
| if (video->prevEnhcVop->timeStamp > video->prevVop->timeStamp) |
| { |
| video->prevVop = video->prevEnhcVop; |
| } |
| } |
| |
| oscl_memcpy(currVop->yChan, video->prevVop->yChan, (decCtrl->size*3) / 2); |
| |
| video->prevVop = prevVop; |
| |
| video->concealFrame = currVop->yChan; /* 07/07/2001 */ |
| |
| video->vop_coding_type = currVop->predictionType; /* 07/09/01 */ |
| |
| decCtrl->outputFrame = currVop->yChan; |
| |
| /* Swap VOP pointers. No enhc. frame oscl_memcpy() anymore! 04/24/2001 */ |
| if (target_layer) |
| { |
| tempVopPtr = video->prevEnhcVop; |
| video->prevEnhcVop = video->currVop; |
| video->currVop = tempVopPtr; |
| } |
| else |
| { |
| tempVopPtr = video->prevVop; |
| video->prevVop = video->currVop; |
| video->currVop = tempVopPtr; |
| } |
| #else |
| if (target_layer) /* this is necessary to avoid flashback problems 06/21/2002*/ |
| { |
| video->prevEnhcVop->timeStamp = currVop->timeStamp; |
| } |
| else |
| { |
| video->prevVop->timeStamp = currVop->timeStamp; |
| } |
| #endif |
| video->vop_coding_type = currVop->predictionType; /* 07/09/01 */ |
| /* the following is necessary to avoid displaying an notCoded I-VOP at the beginning of a session |
| or after random positioning 07/03/02*/ |
| if (currVop->predictionType == I_VOP) |
| { |
| video->vop_coding_type = P_VOP; |
| } |
| |
| |
| return PV_TRUE; |
| } |
| /* ======================================================= */ |
| /* Decode vop body (if there is no error in the header!) */ |
| /* ======================================================= */ |
| |
| /* first, we need to select a reference frame */ |
| if (decCtrl->nLayers > 1) |
| { |
| if (currVop->predictionType == I_VOP) |
| { |
| /* do nothing here */ |
| } |
| else if (currVop->predictionType == P_VOP) |
| { |
| switch (currVop->refSelectCode) |
| { |
| case 0 : /* most recently decoded enhancement vop */ |
| /* Setup video->prevVop before we call PV_DecodeVop(). 04/24/2001 */ |
| if (video->prevEnhcVop->timeStamp >= video->prevVop->timeStamp) |
| video->prevVop = video->prevEnhcVop; |
| break; |
| |
| case 1 : /* most recently displayed base-layer vop */ |
| if (target_layer) |
| { |
| if (video->prevEnhcVop->timeStamp > video->prevVop->timeStamp) |
| video->prevVop = video->prevEnhcVop; |
| } |
| break; |
| |
| case 2 : /* next base-layer vop in display order */ |
| break; |
| |
| case 3 : /* temporally coincident base-layer vop (no MV's) */ |
| break; |
| } |
| } |
| else /* we have a B-Vop */ |
| { |
| mp4dec_log("DecodeVideoFrame(): B-VOP not supported.\n"); |
| } |
| } |
| |
| /* This is for the calculation of the frame rate and bitrate. */ |
| idx = ++video->frame_idx % BITRATE_AVERAGE_WINDOW; |
| |
| /* Calculate bitrate for this layer. 08/23/2000 */ |
| status = PV_DecodeVop(video); |
| video->nBitsPerVop[idx] = getPointer(currVol->bitstream); |
| video->prevTimestamp[idx] = currVop->timeStamp; |
| |
| /* restore video->prevVop after PV_DecodeVop(). 04/24/2001 */ |
| // if (currVop->refSelectCode == 0) video->prevVop = prevVop; |
| video->prevVop = prevVop; |
| |
| /* Estimate the frame rate. 08/23/2000 */ |
| video->duration = video->prevTimestamp[idx]; |
| video->duration -= video->prevTimestamp[(++idx)%BITRATE_AVERAGE_WINDOW]; |
| if (video->duration > 0) |
| { /* Only update framerate when the timestamp is right */ |
| video->frameRate = (int)(FRAMERATE_SCALE) / video->duration; |
| } |
| |
| /* We should always clear up bitstream buffer. 10/10/2000 */ |
| bytes_consumed = (getPointer(currVol->bitstream) + 7) >> 3; /* 11/4/03 */ |
| |
| if (bytes_consumed > currVol->bitstream->data_end_pos) |
| { |
| bytes_consumed = currVol->bitstream->data_end_pos; |
| } |
| |
| if (bytes_consumed < buffer_size[target_layer]) |
| { |
| /* If we only consume part of the bits in the buffer, take those */ |
| /* out. 04/24/2001 */ |
| /* oscl_memcpy(buffer[target_layer], buffer[target_layer]+bytes_consumed, |
| (buffer_size[target_layer]-=bytes_consumed)); */ |
| buffer_size[target_layer] -= bytes_consumed; |
| } |
| else |
| { |
| buffer_size[target_layer] = 0; |
| } |
| switch (status) |
| { |
| case PV_FAIL : |
| return PV_FALSE; /* this will take care of concealment if we lose whole frame */ |
| |
| case PV_END_OF_VOP : |
| /* we may want to differenciate PV_END_OF_VOP and PV_SUCCESS */ |
| /* in the future. 05/10/2000 */ |
| |
| case PV_SUCCESS : |
| /* Nohting is wrong :). */ |
| |
| |
| video->concealFrame = video->currVop->yChan; /* 07/07/2001 */ |
| |
| video->vop_coding_type = video->currVop->predictionType; /* 07/09/01 */ |
| |
| decCtrl->outputFrame = video->currVop->yChan; |
| |
| /* Swap VOP pointers. No enhc. frame oscl_memcpy() anymore! 04/24/2001 */ |
| if (target_layer) |
| { |
| tempVopPtr = video->prevEnhcVop; |
| video->prevEnhcVop = video->currVop; |
| video->currVop = tempVopPtr; |
| } |
| else |
| { |
| tempVopPtr = video->prevVop; |
| video->prevVop = video->currVop; |
| video->currVop = tempVopPtr; |
| } |
| break; |
| |
| default : |
| /* This will never happen */ |
| break; |
| } |
| |
| return PV_TRUE; |
| } |
| |
| #ifdef PV_MEMORY_POOL |
| OSCL_EXPORT_REF void PVSetReferenceYUV(VideoDecControls *decCtrl, uint8 *YUV) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| video->prevVop->yChan = (PIXEL *)YUV; |
| video->prevVop->uChan = (PIXEL *)YUV + video->size; |
| video->prevVop->vChan = (PIXEL *)video->prevVop->uChan + (decCtrl->size >> 2); |
| oscl_memset(video->prevVop->yChan, 16, sizeof(uint8)*decCtrl->size); /* 10/31/01 */ |
| oscl_memset(video->prevVop->uChan, 128, sizeof(uint8)*decCtrl->size / 2); |
| video->concealFrame = video->prevVop->yChan; /* 07/07/2001 */ |
| decCtrl->outputFrame = video->prevVop->yChan; /* 06/19/2002 */ |
| } |
| #endif |
| |
| |
| /* ======================================================================== */ |
| /* Function : VideoDecoderErrorDetected() */ |
| /* Date : 06/20/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : This function will be called everytime an error int the */ |
| /* bitstream is detected. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| uint VideoDecoderErrorDetected(VideoDecData *) |
| { |
| /* This is only used for trapping bitstream error for debuging */ |
| return 0; |
| } |
| |
| #ifdef ENABLE_LOG |
| #include <stdio.h> |
| #include <stdarg.h> |
| /* ======================================================================== */ |
| /* Function : m4vdec_dprintf() */ |
| /* Date : 08/15/2000 */ |
| /* Purpose : This is a function that logs messages in the mpeg4 video */ |
| /* decoder. We can call the standard PacketVideo PVMessage */ |
| /* from inside this function if necessary. */ |
| /* In/out : */ |
| /* Return : */ |
| /* Note : To turn on the logging, LOG_MP4DEC_MESSAGE must be defined */ |
| /* when compiling this file (only this file). */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| void m4vdec_dprintf(char *format, ...) |
| { |
| FILE *log_fp; |
| va_list args; |
| va_start(args, format); |
| |
| /* open the log file */ |
| log_fp = fopen("\\mp4dec_log.txt", "a+"); |
| if (log_fp == NULL) return; |
| /* output the message */ |
| vfprintf(log_fp, format, args); |
| fclose(log_fp); |
| |
| va_end(args); |
| } |
| #endif |
| |
| |
| /* ======================================================================== */ |
| /* Function : IsIntraFrame() */ |
| /* Date : 05/29/2000 */ |
| /* Purpose : */ |
| /* In/out : */ |
| /* Return : The most recently decoded frame is an Intra frame. */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool IsIntraFrame(VideoDecControls *decCtrl) |
| { |
| VideoDecData *video = (VideoDecData *)decCtrl->videoDecoderData; |
| return (video->vop_coding_type == I_VOP); |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVDecPostProcess() */ |
| /* Date : 01/09/2002 */ |
| /* Purpose : PostProcess one video frame and return a YUV-12 image. */ |
| /* In/out : */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| void PVDecPostProcess(VideoDecControls *decCtrl, uint8 *outputYUV) |
| { |
| uint8 *outputBuffer; |
| #ifdef PV_POSTPROC_ON |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| int32 tmpvar; |
| if (outputYUV) |
| { |
| outputBuffer = outputYUV; |
| } |
| else |
| { |
| if (video->postFilterType) |
| { |
| outputBuffer = video->currVop->yChan; |
| } |
| else |
| { |
| outputBuffer = decCtrl->outputFrame; |
| } |
| } |
| |
| if (video->postFilterType) |
| { |
| /* Post-processing, */ |
| PostFilter(video, video->postFilterType, outputBuffer); |
| } |
| else |
| { |
| if (outputYUV) |
| { |
| /* Copy decoded frame to the output buffer. */ |
| tmpvar = (int32)video->width * video->height; |
| oscl_memcpy(outputBuffer, decCtrl->outputFrame, tmpvar*3 / 2); /* 3/3/01 */ |
| } |
| } |
| #else |
| outputBuffer = decCtrl->outputFrame; |
| outputYUV; |
| #endif |
| decCtrl->outputFrame = outputBuffer; |
| return; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVDecSetReference(VideoDecControls *decCtrl, uint8 *refYUV, */ |
| /* int32 timestamp) */ |
| /* Date : 07/22/2003 */ |
| /* Purpose : Get YUV reference frame from external source. */ |
| /* In/out : YUV 4-2-0 frame containing new reference frame in the same */ |
| /* : dimension as original, i.e., doesn't have to be multiple of 16 !!!. */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool PVDecSetReference(VideoDecControls *decCtrl, uint8 *refYUV, uint32 timestamp) |
| { |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| Vop *prevVop = video->prevVop; |
| int width = video->width; |
| uint8 *dstPtr, *orgPtr, *dstPtr2, *orgPtr2; |
| int32 size = (int32)width * video->height; |
| |
| |
| /* set new parameters */ |
| prevVop->timeStamp = timestamp; |
| prevVop->predictionType = I_VOP; |
| |
| dstPtr = prevVop->yChan; |
| orgPtr = refYUV; |
| oscl_memcpy(dstPtr, orgPtr, size); |
| dstPtr = prevVop->uChan; |
| dstPtr2 = prevVop->vChan; |
| orgPtr = refYUV + size; |
| orgPtr2 = orgPtr + (size >> 2); |
| oscl_memcpy(dstPtr, orgPtr, (size >> 2)); |
| oscl_memcpy(dstPtr2, orgPtr2, (size >> 2)); |
| |
| video->concealFrame = video->prevVop->yChan; |
| video->vop_coding_type = I_VOP; |
| decCtrl->outputFrame = video->prevVop->yChan; |
| |
| return PV_TRUE; |
| } |
| |
| /* ======================================================================== */ |
| /* Function : PVDecSetEnhReference(VideoDecControls *decCtrl, uint8 *refYUV, */ |
| /* int32 timestamp) */ |
| /* Date : 07/23/2003 */ |
| /* Purpose : Get YUV enhance reference frame from external source. */ |
| /* In/out : YUV 4-2-0 frame containing new reference frame in the same */ |
| /* : dimension as original, i.e., doesn't have to be multiple of 16 !!!. */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : */ |
| /* ======================================================================== */ |
| Bool PVDecSetEnhReference(VideoDecControls *decCtrl, uint8 *refYUV, uint32 timestamp) |
| { |
| VideoDecData *video = (VideoDecData *) decCtrl->videoDecoderData; |
| Vop *prevEnhcVop = video->prevEnhcVop; |
| uint8 *dstPtr, *orgPtr, *dstPtr2, *orgPtr2; |
| int32 size = (int32) video->width * video->height; |
| |
| if (video->numberOfLayers <= 1) |
| return PV_FALSE; |
| |
| |
| /* set new parameters */ |
| prevEnhcVop->timeStamp = timestamp; |
| prevEnhcVop->predictionType = I_VOP; |
| |
| dstPtr = prevEnhcVop->yChan; |
| orgPtr = refYUV; |
| oscl_memcpy(dstPtr, orgPtr, size); |
| dstPtr = prevEnhcVop->uChan; |
| dstPtr2 = prevEnhcVop->vChan; |
| orgPtr = refYUV + size; |
| orgPtr2 = orgPtr + (size >> 2); |
| oscl_memcpy(dstPtr, orgPtr, (size >> 2)); |
| oscl_memcpy(dstPtr2, orgPtr2, (size >> 2)); |
| video->concealFrame = video->prevEnhcVop->yChan; |
| video->vop_coding_type = I_VOP; |
| decCtrl->outputFrame = video->prevEnhcVop->yChan; |
| |
| return PV_TRUE; |
| } |
| |
| |
| /* ======================================================================== */ |
| /* Function : PVGetVolInfo() */ |
| /* Date : 08/06/2003 */ |
| /* Purpose : Get the vol info(only base-layer). */ |
| /* In/out : */ |
| /* Return : */ |
| /* Note : */ |
| /* Modified : 06/24/2004 */ |
| /* ======================================================================== */ |
| Bool PVGetVolInfo(VideoDecControls *decCtrl, VolInfo *pVolInfo) |
| { |
| Vol *currVol; |
| |
| if (pVolInfo == NULL || decCtrl == NULL || decCtrl->videoDecoderData == NULL || |
| ((VideoDecData *)decCtrl->videoDecoderData)->vol[0] == NULL) return PV_FALSE; |
| |
| currVol = ((VideoDecData *)(decCtrl->videoDecoderData))->vol[0]; |
| |
| // get the VOL info |
| pVolInfo->shortVideoHeader = (int32)((VideoDecData *)(decCtrl->videoDecoderData))->shortVideoHeader; |
| pVolInfo->dataPartitioning = (int32)currVol->dataPartitioning; |
| pVolInfo->errorResDisable = (int32)currVol->errorResDisable; |
| pVolInfo->useReverseVLC = (int32)currVol->useReverseVLC; |
| pVolInfo->scalability = (int32)currVol->scalability; |
| pVolInfo->nbitsTimeIncRes = (int32)currVol->nbitsTimeIncRes; |
| pVolInfo->profile_level_id = (int32)currVol->profile_level_id; |
| |
| return PV_TRUE; |
| } |
| |
| |
| |
