--- a/videoeditorengine/h263decoder/src/decmbdct.cpp Fri Jan 29 14:08:33 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,352 +0,0 @@
-/*
-* Copyright (c) 2010 Ixonos Plc.
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of the "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - Initial contribution
-*
-* Contributors:
-* Ixonos Plc
-*
-* Description:
-* Prediction error block decoding functions.
-*
-*/
-
-
-
-/*
- * Includes
- */
-#include "h263dConfig.h"
-#include "decmbdct.h"
-#include "decblock.h"
-#include "block.h"
-#include "viddemux.h"
-/* MVE */
-#include "MPEG4Transcoder.h"
-
-/*
- * Globals
- */
-
-/* New chroma QP values in MQ mode. See Table T.1/H.263 */
-static const u_char dmdMQChromaTab[32] = {0,1,2,3,4,5,6,6,7,8,9,9,10,10,
- 11,11,12,12,12,13,13,13,14,14,
- 14,14,14,15,15,15,15,15};
-
-
-/*
- * Global functions
- */
-
-
-/* {{-output"dmdGetAndDecodeIMBBlocks.txt"}} */
-/*
- * dmdGetAndDecodeIMBBlocks
- *
- *
- * Parameters:
- * param parameters needed in this function
- *
- * Function:
- * This function gets the DCT coefficients of an INTRA macroblock
- * from the bitstream, reconstructs the corresponding
- * pixel-domain blocks and puts the blocks to the output frame.
- *
- * Returns:
- * >= 0 the function was successful
- * < 0 an error occured when accessing bit buffer
- *
- */
-
-int dmdGetAndDecodeIMBBlocks(
- dmdIParam_t *param, CMPEG4Transcoder *hTranscoder)
-/* {{-output"dmdGetAndDecodeIMBBlocks.txt"}} */
-{
- bibBuffer_t
- *inBuffer; /* Input bit buffer instance */
-
- TBool getDecodedFrame;
-
-
- int
- cWidth, /* Chrominance image width in pixels */
- block[64], /* Temporal 8 x 8 block of pixels */
- i, /* Loop variable */
- chrQuant, /* Quantization parameter for chroma */
- bitErrorIndication = 0,
- /* Carries bit error indication information returned
- by the video demultiplexer module */
- ret = 0; /* Used to check return values of function calls */
-
- u_char
- *yBlockInFrame; /* Points to top-left corner of the current block
- inside the current frame */
-
- inBuffer = param->inBuffer;
-
- getDecodedFrame = param->iGetDecodedFrame;
-
-
- yBlockInFrame = param->yMBInFrame;
- cWidth = param->yWidth / 2;
-
-
- /* Luminance blocks */
- for (i=0; i<4; i++)
- {
- /* MVE */
- hTranscoder->BeginOneBlock(i);
-
- bitErrorIndication = 0;
-
- /* Get DCT coefficients */
- ret = vdxGetIntraDCTBlock(inBuffer, vdxIsYCoded(param->cbpy, i + 1),
- block, &bitErrorIndication, param->fMQ, param->quant);
- if ( ret < 0 )
- return DMD_ERR;
- else if ( ret == VDX_OK_BUT_BIT_ERROR )
- goto corruptedMB;
-
- /* MVE */
- hTranscoder->AddOneBlockDataToMB(i, block);
- if(getDecodedFrame || hTranscoder->NeedDecodedYUVFrame()) // we need the YUV frames.
- {
-
- dblIdctAndDequant(block, param->quant, 1);
- blcBlockToFrame(block, yBlockInFrame, param->yWidth);
- yBlockInFrame += 8;
- if (i & 1)
- yBlockInFrame += 8 * param->yWidth - 16;
- }
-
- } /* for (y blocks) */
-
- /* MVE */
- hTranscoder->BeginOneBlock(4);
-
- /* Chrominance blocks (U) */
- bitErrorIndication = 0;
- /* Find out the value of QP for chrominance block. */
- chrQuant = (param->fMQ)?dmdMQChromaTab[param->quant]:param->quant;
-
- /* Get DCT coefficients */
- ret = vdxGetIntraDCTBlock(inBuffer, vdxIsUCoded(param->cbpc),
- block, &bitErrorIndication, param->fMQ, chrQuant);
- if ( ret < 0 )
- return DMD_ERR;
- else if ( ret == VDX_OK_BUT_BIT_ERROR )
- goto corruptedMB;
-
- /* MVE */
- hTranscoder->AddOneBlockDataToMB(4, block);
- hTranscoder->BeginOneBlock(5);
- if(getDecodedFrame || hTranscoder->NeedDecodedYUVFrame())
- {
- dblIdctAndDequant(block, chrQuant, 1);
- blcBlockToFrame(block, param->uBlockInFrame, cWidth);
- }
-
- /* (V) */
- bitErrorIndication = 0;
- /* Get DCT coefficients */
- ret = vdxGetIntraDCTBlock(inBuffer, vdxIsVCoded(param->cbpc),
- block, &bitErrorIndication, param->fMQ, chrQuant);
- if ( ret < 0 )
- return DMD_ERR;
- else if ( ret == VDX_OK_BUT_BIT_ERROR )
- goto corruptedMB;
-
- /* MVE */
- hTranscoder->AddOneBlockDataToMB(5, block);
- if ( hTranscoder->TranscodingOneMB(NULL) != DMD_OK )
- {
- return DMD_ERR;
- }
- if(getDecodedFrame || hTranscoder->NeedDecodedYUVFrame())
- {
-
- dblIdctAndDequant(block, chrQuant, 1);
- blcBlockToFrame(block, param->vBlockInFrame, cWidth);
-
- }
-
- return DMD_OK;
-
-corruptedMB:
-
- return DMD_BIT_ERR;
-}
-
-
-/* {{-output"dmdGetAndDecodePMBBlocks.txt"}} */
-/*
- * dmdGetAndDecodePMBBlocks
- *
- *
- * Parameters:
- * param parameters needed in this function
- *
- * Function:
- * This function gets the DCT coefficients of an INTER macroblock
- * from the bitstream, reconstructs the corresponding
- * pixel-domain blocks and adds the blocks to the prediction frame.
- *
- * Returns:
- * >= 0 the function was successful
- * < 0 an error occured when accessing bit buffer
- *
- */
-
-int dmdGetAndDecodePMBBlocks(
- dmdPParam_t *param, CMPEG4Transcoder *hTranscoder)
-/* {{-output"dmdGetAndDecodePMBBlocks.txt"}} */
-{
- bibBuffer_t
- *inBuffer; /* Input bit buffer instance */
-
-
- TBool getDecodedFrame;
-
- int
- yWidth, /* Luminance image width in pixels */
- block[64], /* Temporal 8 x 8 block of pixels */
- i, /* Loop variable */
- chrQuant, /* Quantization parameter for chroma */
- bitErrorIndication = 0,
- /* Carries bit error indication information returned
- by the video demultiplexer module */
- ret = 0; /* Used to check return values of function calls */
-
- u_char
- *yBlockInFrame; /* Points to top-left corner of the current block
- inside the current frame */
-
- inBuffer = param->inBuffer;
-
-
- getDecodedFrame = param->iGetDecodedFrame;
-
-
- yWidth = param->uvWidth * 2;
- yBlockInFrame = param->currYMBInFrame;
-
-
- int fEscapeCodeUsed = 0;
-
- /* Luminance blocks */
- for (i = 0; i < 4; i++) {
-
- hTranscoder->BeginOneBlock(i);
-
- if (vdxIsYCoded(param->cbpy, i + 1))
- {
- /* Get DCT coefficients */
- ret = vdxGetDCTBlock(inBuffer, 0, 0, block,
- &bitErrorIndication, 0, param->quant, &fEscapeCodeUsed);
- if ( ret < 0 )
- return DMD_ERR;
- else if ( ret == VDX_OK_BUT_BIT_ERROR )
- return DMD_BIT_ERR;
-
- /* MVE */
- hTranscoder->H263EscapeCoding(i, fEscapeCodeUsed);
- hTranscoder->AddOneBlockDataToMB(i, block);
- if(getDecodedFrame || hTranscoder->NeedDecodedYUVFrame())
- {
-
- dblIdctAndDequant(block, param->quant, 0);
-
- blcAddBlock(block, yBlockInFrame,
- yWidth, param->mbPlace,
- (u_char) param->fAdvancedPrediction, param->diffMB->block[i]);
- }
- }
-
- /* MVE */
- else
- {
- hTranscoder->H263EscapeCoding(i, fEscapeCodeUsed);
- hTranscoder->AddOneBlockDataToMB(i, NULL);
- }
-
- yBlockInFrame += 8;
- if (i & 1)
- yBlockInFrame += ((/*8 **/ yWidth<<3) - 16);
- } /* for (y blocks) */
-
- /* Find out the value of QP for chrominance block. */
- chrQuant = param->quant;
-
- hTranscoder->BeginOneBlock(4);
-
- /* Chrominance blocks (U) */
- if (vdxIsUCoded(param->cbpc))
- {
- /* Get DCT coefficients */
- ret = vdxGetDCTBlock(inBuffer, 0, 0, block,
- &bitErrorIndication, 0, param->quant, &fEscapeCodeUsed);
- if ( ret < 0 )
- return DMD_ERR;
- else if ( ret == VDX_OK_BUT_BIT_ERROR )
- return DMD_BIT_ERR;
-
- hTranscoder->H263EscapeCoding(4, fEscapeCodeUsed);
- hTranscoder->AddOneBlockDataToMB(4, block);
- if(getDecodedFrame || hTranscoder->NeedDecodedYUVFrame())
- {
-
- dblIdctAndDequant(block, chrQuant,0);
- blcAddBlock(block, param->currUBlkInFrame, param->uvWidth, 0, 0, 0);
- }
- }
-
- else
- {
- hTranscoder->H263EscapeCoding(4, fEscapeCodeUsed);
- hTranscoder->AddOneBlockDataToMB(4, NULL);
- }
-
- hTranscoder->BeginOneBlock(5);
-
- /* (V) */
- if (vdxIsVCoded(param->cbpc))
- {
- /* Get DCT coefficients */
- ret = vdxGetDCTBlock(inBuffer, 0, 0, block,
- &bitErrorIndication, 0, param->quant, &fEscapeCodeUsed);
- if ( ret < 0 )
- return DMD_ERR;
- else if ( ret == VDX_OK_BUT_BIT_ERROR )
- return DMD_BIT_ERR;
-
- /* MVE */
- hTranscoder->H263EscapeCoding(5, fEscapeCodeUsed);
- hTranscoder->AddOneBlockDataToMB(5, block);
- if(getDecodedFrame || hTranscoder->NeedDecodedYUVFrame())
- {
-
- dblIdctAndDequant(block, chrQuant,0);
- blcAddBlock(block, param->currVBlkInFrame, param->uvWidth, 0, 0, 0);
- }
- }
- else
- {
- hTranscoder->H263EscapeCoding(5, fEscapeCodeUsed);
- hTranscoder->AddOneBlockDataToMB(5, NULL);
- }
-
- if ( hTranscoder->TranscodingOneMB(param) != TX_OK )
- {
- return DMD_ERR;
- }
- return DMD_OK;
-
-}
-
-// End of File