| /* |
| * Copyright (C) 2007-2008 ARM Limited |
| * |
| * 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. |
| * |
| */ |
| /** |
| * |
| * File Name: omxVCM4P2_TransRecBlockCoef_inter.c |
| * OpenMAX DL: v1.0.2 |
| * Revision: 9641 |
| * Date: Thursday, February 7, 2008 |
| * |
| * |
| * |
| * |
| * Description: |
| * Contains modules DCT->quant and reconstructing the inter texture data |
| * |
| */ |
| |
| #include "omxtypes.h" |
| #include "armOMX.h" |
| #include "omxVC.h" |
| |
| #include "armCOMM.h" |
| |
| |
| /** |
| * Function: omxVCM4P2_TransRecBlockCoef_inter (6.2.4.4.5) |
| * |
| * Description: |
| * Implements DCT, and quantizes the DCT coefficients of the inter block |
| * while reconstructing the texture residual. There is no boundary check for |
| * the bit stream buffer. |
| * |
| * Input Arguments: |
| * |
| * pSrc -pointer to the residuals to be encoded; must be aligned on an |
| * 16-byte boundary. |
| * QP - quantization parameter. |
| * shortVideoHeader - binary flag indicating presence of short_video_header; |
| * shortVideoHeader==1 selects linear intra DC mode, and |
| * shortVideoHeader==0 selects non linear intra DC mode. |
| * |
| * Output Arguments: |
| * |
| * pDst - pointer to the quantized DCT coefficients buffer; must be aligned |
| * on a 16-byte boundary. |
| * pRec - pointer to the reconstructed texture residuals; must be aligned |
| * on a 16-byte boundary. |
| * |
| * Return Value: |
| * |
| * OMX_Sts_NoErr - no error |
| * OMX_Sts_BadArgErr - bad arguments: |
| * - At least one of the following pointers is either NULL or |
| * not 16-byte aligned: |
| * - pSrc |
| * - pDst |
| * - pRec |
| * - QP <= 0 or QP >= 32. |
| * |
| */ |
| |
| OMXResult omxVCM4P2_TransRecBlockCoef_inter( |
| const OMX_S16 *pSrc, |
| OMX_S16 * pDst, |
| OMX_S16 * pRec, |
| OMX_U8 QP, |
| OMX_INT shortVideoHeader |
| ) |
| { |
| /* 64 elements are needed but to align it to 16 bytes need |
| 8 more elements of padding */ |
| OMX_S16 tempBuffer[72]; |
| OMX_S16 *pTempBuffer; |
| OMX_INT i; |
| |
| /* Aligning the local buffers */ |
| pTempBuffer = armAlignTo16Bytes(tempBuffer); |
| |
| /* Argument error checks */ |
| armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr); |
| armRetArgErrIf(pRec == NULL, OMX_Sts_BadArgErr); |
| armRetArgErrIf(pDst == NULL, OMX_Sts_BadArgErr); |
| armRetArgErrIf(!armIs16ByteAligned(pSrc), OMX_Sts_BadArgErr); |
| armRetArgErrIf(!armIs16ByteAligned(pRec), OMX_Sts_BadArgErr); |
| armRetArgErrIf(!armIs16ByteAligned(pDst), OMX_Sts_BadArgErr); |
| armRetArgErrIf(((QP <= 0) || (QP >= 32)), OMX_Sts_BadArgErr); |
| |
| omxVCM4P2_DCT8x8blk (pSrc, pDst); |
| omxVCM4P2_QuantInter_I( |
| pDst, |
| QP, |
| shortVideoHeader); |
| |
| for (i = 0; i < 64; i++) |
| { |
| pTempBuffer[i] = pDst[i]; |
| } |
| |
| omxVCM4P2_QuantInvInter_I( |
| pTempBuffer, |
| QP); |
| omxVCM4P2_IDCT8x8blk (pTempBuffer, pRec); |
| |
| return OMX_Sts_NoErr; |
| } |
| |
| /* End of file */ |
| |
| |