1ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta/****************************************************************************** 2ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * 3ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * Copyright (C) 2014 The Android Open Source Project 4ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved. 5ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * 6ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * Licensed under the Apache License, Version 2.0 (the "License"); 7ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * you may not use this file except in compliance with the License. 8ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * You may obtain a copy of the License at: 9ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * 10ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * http://www.apache.org/licenses/LICENSE-2.0 11ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * 12ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * Unless required by applicable law or agreed to in writing, software 13ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * distributed under the License is distributed on an "AS IS" BASIS, 14ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * See the License for the specific language governing permissions and 16ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * limitations under the License. 17ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * 18ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta ******************************************************************************/ 19ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 20ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta#include <stdlib.h> 21ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta#include <oi_codec_sbc_private.h> 22ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 23ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta/********************************************************************************** 24ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta $Revision: #1 $ 25ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta***********************************************************************************/ 26ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 27ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant GuptaPRIVATE OI_STATUS OI_CODEC_SBC_Alloc(OI_CODEC_SBC_COMMON_CONTEXT *common, 28ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_UINT32 *codecDataAligned, 29ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_UINT32 codecDataBytes, 30ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_UINT8 maxChannels, 31ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_UINT8 pcmStride) 32ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta{ 33ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta int i; 34ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta size_t filterBufferCount; 35ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta size_t subdataSize; 36ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_BYTE *codecData = (OI_BYTE*)codecDataAligned; 37ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 38ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta if (maxChannels < 1 || maxChannels > 2) { 39ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta return OI_STATUS_INVALID_PARAMETERS; 40ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta } 41ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 42ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta if (pcmStride < 1 || pcmStride > maxChannels) { 43ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta return OI_STATUS_INVALID_PARAMETERS; 44ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta } 45ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 46ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta common->maxChannels = maxChannels; 47ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta common->pcmStride = pcmStride; 48ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 49ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta /* Compute sizes needed for the memory regions, and bail if we don't have 50ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta * enough memory for them. */ 51ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta subdataSize = maxChannels * sizeof(common->subdata[0]) * SBC_MAX_BANDS * SBC_MAX_BLOCKS; 52ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta if (subdataSize > codecDataBytes) { 53ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta return OI_STATUS_OUT_OF_MEMORY; 54ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta } 55ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 56ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta filterBufferCount = (codecDataBytes - subdataSize) / (sizeof(common->filterBuffer[0][0]) * SBC_MAX_BANDS * maxChannels); 57ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta if (filterBufferCount < SBC_CODEC_MIN_FILTER_BUFFERS) { 58ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta return OI_STATUS_OUT_OF_MEMORY; 59ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta } 60ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta common->filterBufferLen = filterBufferCount * SBC_MAX_BANDS; 61ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 62ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta /* Allocate memory for the subband data */ 63ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta common->subdata = (OI_INT32*)codecData; 64ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta codecData += subdataSize; 65ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_ASSERT(codecDataBytes >= subdataSize); 66ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta codecDataBytes -= subdataSize; 67ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 68ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta /* Allocate memory for the synthesis buffers */ 69ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta for (i = 0; i < maxChannels; ++i) { 70ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta size_t allocSize = common->filterBufferLen * sizeof(common->filterBuffer[0][0]); 71ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta common->filterBuffer[i] = (SBC_BUFFER_T*)codecData; 72ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta OI_ASSERT(codecDataBytes >= allocSize); 73ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta codecData += allocSize; 74ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta codecDataBytes -= allocSize; 75ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta } 76ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta 77ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta return OI_OK; 78ce24765fe7620c34e8d88ed4f826c8a6917582b2Hemant Gupta} 79