/* ------------------------------------------------------------------ * 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. * ------------------------------------------------------------------- */ #define LOG_TAG "pvdec_api" #include #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; oscl_free(video); goto fail; } video->vol = (Vol **) oscl_malloc(nLayers * sizeof(Vol *)); #endif if (video->vol == NULL) status = PV_FALSE; video->memoryUsage += nLayers * sizeof(Vol *); /* be sure not to leak any previous state */ PVCleanUpVideoDecoder(decCtrl); /* 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); if (video->vol[idx] == NULL) status = PV_FALSE; else oscl_memset(video->vol[idx], 0, sizeof(Vol)); 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; oscl_memset(stream, 0, sizeof(BitstreamDecVideo)); 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->displayWidth = width; video->displayHeight = height; video->width = (width + 15) & -16; video->height = (height + 15) & -16; video->size = (int32)video->width * video->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 = width; video->displayHeight = height; video->width = (width + 15) & -16; video->height = (height + 15) & -16; 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; else { 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; else { video->prevVop->uChan = video->prevVop->yChan + size; video->prevVop->vChan = video->prevVop->uChan + (size >> 2); } #else if (size > INT32_MAX / 3) { 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; else { 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; else { 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) { 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; else { 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; else oscl_memset(video->sliceNo, 0, nTotalMB); video->memoryUsage += nTotalMB; video->acPredFlag = (uint8 *) oscl_malloc(nTotalMB * sizeof(uint8)); if (video->acPredFlag == NULL) status = PV_FALSE; else oscl_memset(video->acPredFlag, 0, nTotalMB * sizeof(uint8)); 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; else oscl_memset(video->predDC, 0, nTotalMB * sizeof(typeDCStore)); 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; else oscl_memset(video->predDCAC_col, 0, (nMBPerRow + 1) * sizeof(typeDCACStore)); 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; else oscl_memset(video->headerInfo.Mode, 0, nTotalMB); video->memoryUsage += nTotalMB; video->headerInfo.CBP = (uint8 *) oscl_malloc(nTotalMB); if (video->headerInfo.CBP == NULL) status = PV_FALSE; else oscl_memset (video->headerInfo.CBP, 0, nTotalMB); 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; else memset(video->QPMB, 0x0, nTotalMB * sizeof(int16)); 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; else memset(video->motX, 0, sizeof(MOT) * 4 * nTotalMB); video->motY = (MOT *) oscl_malloc(sizeof(MOT) * 4 * nTotalMB); if (video->motY == NULL) status = PV_FALSE; else memset(video->motY, 0, sizeof(MOT) * 4 * nTotalMB); video->memoryUsage += (sizeof(MOT) * 8 * nTotalMB); #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) { 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) { 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; if (mode != 0) { ALOGE("Post processing filters are not supported"); } video->postFilterType = 0; } /* ======================================================================== */ /* 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; } } if (!video->prevVop->yChan) { ALOGE("b/35269635"); android_errorWriteLog(0x534e4554, "35269635"); return PV_FALSE; } 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 #include /* ======================================================================== */ /* 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; outputBuffer = decCtrl->outputFrame; outputYUV; 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; }