1 /******************************************************************************
2 *
3 * Copyright 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 #include <oi_codec_sbc_private.h>
37
OI_CODEC_SBC_DecoderConfigureRaw(OI_CODEC_SBC_DECODER_CONTEXT * context,OI_BOOL enhanced,uint8_t frequency,uint8_t mode,uint8_t subbands,uint8_t blocks,uint8_t alloc,uint8_t maxBitpool)38 OI_STATUS OI_CODEC_SBC_DecoderConfigureRaw(
39 OI_CODEC_SBC_DECODER_CONTEXT* context, OI_BOOL enhanced, uint8_t frequency,
40 uint8_t mode, uint8_t subbands, uint8_t blocks, uint8_t alloc,
41 uint8_t maxBitpool) {
42 if (frequency > SBC_FREQ_48000) {
43 return OI_STATUS_INVALID_PARAMETERS;
44 }
45
46 if (enhanced) {
47 #ifdef SBC_ENHANCED
48 if (subbands != SBC_SUBBANDS_8) {
49 return OI_STATUS_INVALID_PARAMETERS;
50 }
51 #else
52 return OI_STATUS_INVALID_PARAMETERS;
53 #endif
54 }
55
56 if (mode > SBC_JOINT_STEREO) {
57 return OI_STATUS_INVALID_PARAMETERS;
58 }
59
60 if (subbands > SBC_SUBBANDS_8) {
61 return OI_STATUS_INVALID_PARAMETERS;
62 }
63
64 if (blocks > SBC_BLOCKS_16) {
65 return OI_STATUS_INVALID_PARAMETERS;
66 }
67
68 if (alloc > SBC_SNR) {
69 return OI_STATUS_INVALID_PARAMETERS;
70 }
71
72 #ifdef SBC_ENHANCED
73 context->common.frameInfo.enhanced = enhanced;
74 #else
75 context->common.frameInfo.enhanced = FALSE;
76 #endif
77 context->common.frameInfo.freqIndex = frequency;
78 context->common.frameInfo.mode = mode;
79 context->common.frameInfo.subbands = subbands;
80 context->common.frameInfo.blocks = blocks;
81 context->common.frameInfo.alloc = alloc;
82 context->common.frameInfo.bitpool = maxBitpool;
83
84 OI_SBC_ExpandFrameFields(&context->common.frameInfo);
85
86 if (context->common.frameInfo.nrof_channels >= context->common.pcmStride) {
87 return OI_STATUS_INVALID_PARAMETERS;
88 }
89
90 return OI_OK;
91 }
92
OI_CODEC_SBC_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT * context,uint8_t bitpool,const OI_BYTE ** frameData,uint32_t * frameBytes,int16_t * pcmData,uint32_t * pcmBytes)93 OI_STATUS OI_CODEC_SBC_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT* context,
94 uint8_t bitpool, const OI_BYTE** frameData,
95 uint32_t* frameBytes, int16_t* pcmData,
96 uint32_t* pcmBytes) {
97 return internal_DecodeRaw(context, bitpool, frameData, frameBytes, pcmData,
98 pcmBytes);
99 }
100
OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT * context,OI_BOOL enhanced,uint8_t subbands)101 OI_STATUS OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT* context,
102 OI_BOOL enhanced, uint8_t subbands) {
103 if (enhanced) {
104 #ifdef SBC_ENHANCED
105 context->enhancedEnabled = TRUE;
106 #else
107 context->enhancedEnabled = FALSE;
108 #endif
109 } else {
110 context->enhancedEnabled = FALSE;
111 }
112 context->restrictSubbands = subbands;
113 context->limitFrameFormat = TRUE;
114 return OI_OK;
115 }
116
117 /**
118 @}
119 */
120