/* ------------------------------------------------------------------ * 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. * ------------------------------------------------------------------- */ /* Filename: sbr_get_cpe.c ------------------------------------------------------------------------------ REVISION HISTORY Who: Date: MM/DD/YYYY Description: ------------------------------------------------------------------------------ INPUT AND OUTPUT DEFINITIONS Arguments: hFrameDataLeft - handle to struct SBR_FRAME_DATA for first channel hFrameDataRight - handle to struct SBR_FRAME_DATA for first channel hBitBuf - handle to struct BIT_BUF Return: SbrFrameOK ------------------------------------------------------------------------------ FUNCTION DESCRIPTION ------------------------------------------------------------------------------ REQUIREMENTS ------------------------------------------------------------------------------ REFERENCES SC 29 Software Copyright Licencing Disclaimer: This software module was originally developed by Coding Technologies and edited by - in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards for reference purposes and its performance may not have been optimized. This software module is an implementation of one or more tools as specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards. ISO/IEC gives users free license to this software module or modifications thereof for use in products claiming conformance to audiovisual and image-coding related ITU Recommendations and/or ISO/IEC International Standards. ISO/IEC gives users the same free license to this software module or modifications thereof for research purposes and further ISO/IEC standardisation. Those intending to use this software module in products are advised that its use may infringe existing patents. ISO/IEC have no liability for use of this software module or modifications thereof. Copyright is not released for products that do not conform to audiovisual and image-coding related ITU Recommendations and/or ISO/IEC International Standards. The original developer retains full right to modify and use the code for its own purpose, assign or donate the code to a third party and to inhibit third parties from using the code for products that do not conform to audiovisual and image-coding related ITU Recommendations and/or ISO/IEC International Standards. This copyright notice must be included in all copies or derivative works. Copyright (c) ISO/IEC 2002. ------------------------------------------------------------------------------ PSEUDO-CODE ------------------------------------------------------------------------------ */ /*---------------------------------------------------------------------------- ; INCLUDES ----------------------------------------------------------------------------*/ #ifdef AAC_PLUS #include "sbr_get_cpe.h" #include "buf_getbits.h" #include "extractframeinfo.h" #include "sbr_get_dir_control_data.h" #include "sbr_get_envelope.h" #include "sbr_get_noise_floor_data.h" #include "sbr_get_additional_data.h" #include "sbr_extract_extended_data.h" #include "aac_mem_funcs.h" /*---------------------------------------------------------------------------- ; MACROS ; Define module specific macros here ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; DEFINES ; Include all pre-processor statements here. Include conditional ; compile variables also. ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; LOCAL FUNCTION DEFINITIONS ; Function Prototype declaration ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; LOCAL STORE/BUFFER/POINTER DEFINITIONS ; Variable declaration - defined here and used outside this module ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; EXTERNAL FUNCTION REFERENCES ; Declare functions defined elsewhere and referenced in this module ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES ; Declare variables used in this module but defined elsewhere ----------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------- ; FUNCTION CODE ----------------------------------------------------------------------------*/ SBR_ERROR sbr_get_cpe(SBR_FRAME_DATA * hFrameDataLeft, SBR_FRAME_DATA * hFrameDataRight, BIT_BUFFER * hBitBuf) { Int32 i; Int32 bits; SBR_ERROR err = SBRDEC_OK; /* reserved bits */ bits = buf_getbits(hBitBuf, SI_SBR_RESERVED_PRESENT); if (bits) { buf_getbits(hBitBuf, SI_SBR_RESERVED_BITS_DATA); buf_getbits(hBitBuf, SI_SBR_RESERVED_BITS_DATA); } /* Read coupling flag */ bits = buf_getbits(hBitBuf, SI_SBR_COUPLING_BITS); if (bits) { hFrameDataLeft->coupling = COUPLING_LEVEL; hFrameDataRight->coupling = COUPLING_BAL; } else { hFrameDataLeft->coupling = COUPLING_OFF; hFrameDataRight->coupling = COUPLING_OFF; } err = extractFrameInfo(hBitBuf, hFrameDataLeft); if (err != SBRDEC_OK) { return err; } if (hFrameDataLeft->coupling) { pv_memcpy(hFrameDataRight->frameInfo, hFrameDataLeft->frameInfo, LENGTH_FRAME_INFO * sizeof(Int32)); hFrameDataRight->nNoiseFloorEnvelopes = hFrameDataLeft->nNoiseFloorEnvelopes; hFrameDataRight->frameClass = hFrameDataLeft->frameClass; sbr_get_dir_control_data(hFrameDataLeft, hBitBuf); sbr_get_dir_control_data(hFrameDataRight, hBitBuf); for (i = 0; i < hFrameDataLeft->nNfb; i++) { hFrameDataLeft->sbr_invf_mode_prev[i] = hFrameDataLeft->sbr_invf_mode[i]; hFrameDataRight->sbr_invf_mode_prev[i] = hFrameDataRight->sbr_invf_mode[i]; hFrameDataLeft->sbr_invf_mode[i] = (INVF_MODE) buf_getbits(hBitBuf, SI_SBR_INVF_MODE_BITS); hFrameDataRight->sbr_invf_mode[i] = hFrameDataLeft->sbr_invf_mode[i]; } sbr_get_envelope(hFrameDataLeft, hBitBuf); sbr_get_noise_floor_data(hFrameDataLeft, hBitBuf); sbr_get_envelope(hFrameDataRight, hBitBuf); } else { err = extractFrameInfo(hBitBuf, hFrameDataRight); if (err != SBRDEC_OK) { return err; } sbr_get_dir_control_data(hFrameDataLeft, hBitBuf); sbr_get_dir_control_data(hFrameDataRight, hBitBuf); for (i = 0; i < hFrameDataLeft->nNfb; i++) { hFrameDataLeft->sbr_invf_mode_prev[i] = hFrameDataLeft->sbr_invf_mode[i]; hFrameDataLeft->sbr_invf_mode[i] = (INVF_MODE) buf_getbits(hBitBuf, SI_SBR_INVF_MODE_BITS); } for (i = 0; i < hFrameDataRight->nNfb; i++) { hFrameDataRight->sbr_invf_mode_prev[i] = hFrameDataRight->sbr_invf_mode[i]; hFrameDataRight->sbr_invf_mode[i] = (INVF_MODE) buf_getbits(hBitBuf, SI_SBR_INVF_MODE_BITS); } sbr_get_envelope(hFrameDataLeft, hBitBuf); sbr_get_envelope(hFrameDataRight, hBitBuf); sbr_get_noise_floor_data(hFrameDataLeft, hBitBuf); } sbr_get_noise_floor_data(hFrameDataRight, hBitBuf); pv_memset((void *)hFrameDataLeft->addHarmonics, 0, hFrameDataLeft->nSfb[HI]*sizeof(Int32)); pv_memset((void *)hFrameDataRight->addHarmonics, 0, hFrameDataRight->nSfb[HI]*sizeof(Int32)); sbr_get_additional_data(hFrameDataLeft, hBitBuf); sbr_get_additional_data(hFrameDataRight, hBitBuf); sbr_extract_extended_data(hBitBuf #ifdef PARAMETRICSTEREO , NULL #endif ); return SBRDEC_OK; } #endif