author | Mikael Laine <mikael.laine@ixonos.com> |
Fri, 29 Jan 2010 14:08:33 +0200 | |
changeset 0 | 951a5db380a0 |
permissions | -rw-r--r-- |
0
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Committing the Video Editor package under the Eclipse Public License
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/* |
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Committing the Video Editor package under the Eclipse Public License
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* Copyright (c) 2010 Ixonos Plc. |
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* All rights reserved. |
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Committing the Video Editor package under the Eclipse Public License
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* This component and the accompanying materials are made available |
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* under the terms of the "Eclipse Public License v1.0" |
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Committing the Video Editor package under the Eclipse Public License
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* which accompanies this distribution, and is available |
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Committing the Video Editor package under the Eclipse Public License
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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Committing the Video Editor package under the Eclipse Public License
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* |
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Committing the Video Editor package under the Eclipse Public License
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* Initial Contributors: |
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Committing the Video Editor package under the Eclipse Public License
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* Nokia Corporation - Initial contribution |
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Committing the Video Editor package under the Eclipse Public License
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* |
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* Contributors: |
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Committing the Video Editor package under the Eclipse Public License
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* Ixonos Plc |
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Committing the Video Editor package under the Eclipse Public License
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* |
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Committing the Video Editor package under the Eclipse Public License
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* Description: |
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Committing the Video Editor package under the Eclipse Public License
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* Multiple scan-order macroblock decoding functions. |
951a5db380a0
Committing the Video Editor package under the Eclipse Public License
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* |
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*/ |
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|
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/* |
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* Includes |
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Committing the Video Editor package under the Eclipse Public License
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*/ |
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#include "h263dConfig.h" |
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#include "decmbs.h" |
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#include "viddemux.h" |
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/* MVE */ |
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#include "MPEG4Transcoder.h" |
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/* |
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* Global functions |
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*/ |
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|
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/* {{-output"dmbsGetAndDecodeIMBsInScanOrder.txt"}} */ |
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Committing the Video Editor package under the Eclipse Public License
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/* |
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Committing the Video Editor package under the Eclipse Public License
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* dmbsGetAndDecodeIMBsInScanOrder |
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Committing the Video Editor package under the Eclipse Public License
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* |
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Committing the Video Editor package under the Eclipse Public License
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* Parameters: |
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Committing the Video Editor package under the Eclipse Public License
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* numMBsToDecode the number of macroblocks to decode |
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* inParam input parameters |
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Committing the Video Editor package under the Eclipse Public License
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* inOutParam input/output parameters, these parameters |
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Committing the Video Editor package under the Eclipse Public License
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* may be modified in the function |
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Committing the Video Editor package under the Eclipse Public License
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* quant array for storing quantization parameters |
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Committing the Video Editor package under the Eclipse Public License
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* |
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* Function: |
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Committing the Video Editor package under the Eclipse Public License
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* This function gets and decodes a requested number of INTRA frame |
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* macroblocks in scan order. |
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Committing the Video Editor package under the Eclipse Public License
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* |
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* Returns: |
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Committing the Video Editor package under the Eclipse Public License
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* >= 0 the function was successful |
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* < 0 an error occured |
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* |
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*/ |
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int dmbsGetAndDecodeIMBsInScanOrder( |
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const dmbIFrameMBInParam_t *inParam, |
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dmbIFrameMBInOutParam_t *inOutParam, |
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int *quant, CMPEG4Transcoder *hTranscoder) |
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/* {{-output"dmbsGetAndDecodeIMBsInScanOrder.txt"}} */ |
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{ |
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int currMBNum; |
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int yWidth = inParam->pictParam->lumMemWidth; |
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int uvWidth = yWidth / 2; |
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int ret = 0; |
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dmbIFrameMBInParam_t dmbi; |
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|
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memcpy(&dmbi, inParam, sizeof(dmbIFrameMBInParam_t)); |
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|
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for (currMBNum = 0; currMBNum < inParam->numMBsInSegment; currMBNum++) { |
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|
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hTranscoder->BeginOneMB(currMBNum + inParam->numMBsInSegment * inParam->yPosInMBs); |
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ret = dmbGetAndDecodeIFrameMB(&dmbi, inOutParam, 0, hTranscoder); |
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if ( ret < 0) |
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return DMBS_ERR; |
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else if ( ret == DMB_BIT_ERR ) { |
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break; |
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} |
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/* Store quantizer and increment array index */ |
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*quant = inOutParam->quant; |
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quant++; |
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|
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if ( inOutParam->yMBInFrame != NULL ) |
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{ |
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inOutParam->yMBInFrame += 16; |
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inOutParam->uBlockInFrame += 8; |
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inOutParam->vBlockInFrame += 8; |
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} |
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dmbi.xPosInMBs++; |
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if (dmbi.xPosInMBs == inParam->pictParam->numMBsInMBLine) { |
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if ( inOutParam->yMBInFrame != NULL ) |
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{ |
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inOutParam->yMBInFrame += 15 * yWidth; |
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inOutParam->uBlockInFrame += 7 * uvWidth; |
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inOutParam->vBlockInFrame += 7 * uvWidth; |
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} |
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dmbi.xPosInMBs = 0; |
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dmbi.yPosInMBs++; |
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} |
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} |
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hTranscoder->H263OneGOBSliceEnded(dmbi.yPosInMBs * inParam->numMBsInSegment); |
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return DMBS_OK; |
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} |
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|
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/* {{-output"dmbsGetAndDecodePMBsInScanOrder.txt"}} */ |
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/* |
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* dmbsGetAndDecodePMBsInScanOrder |
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* |
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* Parameters: |
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* numMBsToDecode the number of macroblocks to decode |
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* inParam input parameters |
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* inOutParam input/output parameters, these parameters |
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* may be modified in the function |
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* quant array for storing quantization parameters |
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* |
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* Function: |
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* This function gets and decodes a requested number of INTER frame |
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* macroblocks in scan order. |
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* |
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* Returns: |
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* >= 0 the function was successful |
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* < 0 an error occured |
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* |
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*/ |
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|
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int dmbsGetAndDecodePMBsInScanOrder( |
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const dmbPFrameMBInParam_t *inParam, |
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dmbPFrameMBInOutParam_t *inOutParam, |
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int *quant, CMPEG4Transcoder *hTranscoder) |
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/* {{-output"dmbsGetAndDecodePMBsInScanOrder.txt"}} */ |
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{ |
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int currMBNum; |
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int yWidth = inParam->pictParam->lumMemWidth; |
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int uvWidth = yWidth / 2; |
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int ret = 0; |
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dmbPFrameMBInParam_t dmbi; |
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|
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memcpy(&dmbi, inParam, sizeof(dmbPFrameMBInParam_t)); |
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|
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for (currMBNum = 0; currMBNum < inParam->numMBsInSegment; currMBNum++) { |
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|
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hTranscoder->BeginOneMB(currMBNum + inParam->numMBsInSegment * inParam->yPosInMBs); |
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|
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ret = dmbGetAndDecodePFrameMB(&dmbi, inOutParam, 0, hTranscoder); |
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if (ret < 0) |
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return DMBS_ERR; |
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else if ( ret == DMB_BIT_ERR ) { |
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break; |
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} |
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|
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/* Store quantizer and increment array index */ |
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*quant = inOutParam->quant; |
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quant++; |
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|
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if ( inOutParam->yMBInFrame != NULL ) |
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{ |
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inOutParam->yMBInFrame += 16; |
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inOutParam->uBlockInFrame += 8; |
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inOutParam->vBlockInFrame += 8; |
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} |
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dmbi.xPosInMBs++; |
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|
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if (dmbi.xPosInMBs == inParam->pictParam->numMBsInMBLine) { |
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if ( inOutParam->yMBInFrame != NULL ) |
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{ |
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inOutParam->yMBInFrame += 15 * yWidth; |
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inOutParam->uBlockInFrame += 7 * uvWidth; |
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inOutParam->vBlockInFrame += 7 * uvWidth; |
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} |
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dmbi.xPosInMBs = 0; |
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dmbi.yPosInMBs++; |
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} |
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} |
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|
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hTranscoder->H263OneGOBSliceEnded(dmbi.yPosInMBs * inParam->numMBsInSegment); |
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|
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return DMBS_OK; |
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|
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} |
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// End of File |