1 /****************************************************************************** 2 * 3 * Copyright (C) 2014 The Android Open Source Project 4 * Copyright 2006 Open Interface North America, Inc. All rights reserved. 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at: 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 ******************************************************************************/ 19 20 /********************************************************************************** 21 $Revision: #1 $ 22 ***********************************************************************************/ 23 24 /** 25 @file 26 This file exposes OINA-specific interfaces to decoder functions. 27 28 @ingroup codec_internal 29 */ 30 31 /** 32 @addtogroup codec_internal 33 @{ 34 */ 35 36 37 #include <oi_codec_sbc_private.h> 38 39 OI_STATUS OI_CODEC_SBC_DecoderConfigureRaw(OI_CODEC_SBC_DECODER_CONTEXT *context, 40 OI_BOOL enhanced, 41 OI_UINT8 frequency, 42 OI_UINT8 mode, 43 OI_UINT8 subbands, 44 OI_UINT8 blocks, 45 OI_UINT8 alloc, 46 OI_UINT8 maxBitpool) 47 { 48 if (frequency > SBC_FREQ_48000) { 49 return OI_STATUS_INVALID_PARAMETERS; 50 } 51 52 if (enhanced) { 53 #ifdef SBC_ENHANCED 54 if (subbands != SBC_SUBBANDS_8) { 55 return OI_STATUS_INVALID_PARAMETERS; 56 } 57 #else 58 return OI_STATUS_INVALID_PARAMETERS; 59 #endif 60 } 61 62 if (mode > SBC_JOINT_STEREO) { 63 return OI_STATUS_INVALID_PARAMETERS; 64 } 65 66 if (subbands > SBC_SUBBANDS_8) { 67 return OI_STATUS_INVALID_PARAMETERS; 68 } 69 70 if (blocks > SBC_BLOCKS_16) { 71 return OI_STATUS_INVALID_PARAMETERS; 72 } 73 74 if (alloc > SBC_SNR) { 75 return OI_STATUS_INVALID_PARAMETERS; 76 } 77 78 #ifdef SBC_ENHANCED 79 context->common.frameInfo.enhanced = enhanced; 80 #else 81 context->common.frameInfo.enhanced = FALSE; 82 #endif 83 context->common.frameInfo.freqIndex = frequency; 84 context->common.frameInfo.mode = mode; 85 context->common.frameInfo.subbands = subbands; 86 context->common.frameInfo.blocks = blocks; 87 context->common.frameInfo.alloc = alloc; 88 context->common.frameInfo.bitpool = maxBitpool; 89 90 OI_SBC_ExpandFrameFields(&context->common.frameInfo); 91 92 if (context->common.frameInfo.nrof_channels >= context->common.pcmStride) { 93 return OI_STATUS_INVALID_PARAMETERS; 94 } 95 96 return OI_OK; 97 } 98 99 100 101 OI_STATUS OI_CODEC_SBC_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT *context, 102 OI_UINT8 bitpool, 103 const OI_BYTE **frameData, 104 OI_UINT32 *frameBytes, 105 OI_INT16 *pcmData, 106 OI_UINT32 *pcmBytes) 107 { 108 return internal_DecodeRaw(context, 109 bitpool, 110 frameData, 111 frameBytes, 112 pcmData, 113 pcmBytes); 114 } 115 116 OI_STATUS OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT *context, 117 OI_BOOL enhanced, 118 OI_UINT8 subbands) 119 { 120 if (enhanced) 121 { 122 #ifdef SBC_ENHANCED 123 context->enhancedEnabled = TRUE; 124 #else 125 context->enhancedEnabled = FALSE; 126 #endif 127 } 128 else 129 { 130 context->enhancedEnabled = FALSE; 131 } 132 context->restrictSubbands = subbands; 133 context->limitFrameFormat = TRUE; 134 return OI_OK; 135 } 136 137 138 /** 139 @} 140 */ 141