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(OI_CODEC_SBC_DECODER_CONTEXT* context, OI_BOOL enhanced,
39 uint8_t frequency, uint8_t mode, uint8_t subbands,
40 uint8_t blocks, uint8_t alloc, uint8_t maxBitpool) {
41 if (frequency > SBC_FREQ_48000) {
42 return OI_STATUS_INVALID_PARAMETERS;
43 }
44
45 if (enhanced) {
46 #ifdef SBC_ENHANCED
47 if (subbands != SBC_SUBBANDS_8) {
48 return OI_STATUS_INVALID_PARAMETERS;
49 }
50 #else
51 return OI_STATUS_INVALID_PARAMETERS;
52 #endif
53 }
54
55 if (mode > SBC_JOINT_STEREO) {
56 return OI_STATUS_INVALID_PARAMETERS;
57 }
58
59 if (subbands > SBC_SUBBANDS_8) {
60 return OI_STATUS_INVALID_PARAMETERS;
61 }
62
63 if (blocks > SBC_BLOCKS_15) {
64 return OI_STATUS_INVALID_PARAMETERS;
65 }
66
67 if (alloc > SBC_SNR) {
68 return OI_STATUS_INVALID_PARAMETERS;
69 }
70
71 #ifdef SBC_ENHANCED
72 context->common.frameInfo.enhanced = enhanced;
73 #else
74 context->common.frameInfo.enhanced = FALSE;
75 #endif
76 context->common.frameInfo.freqIndex = frequency;
77 context->common.frameInfo.mode = mode;
78 context->common.frameInfo.subbands = subbands;
79 context->common.frameInfo.blocks = blocks;
80 context->common.frameInfo.alloc = alloc;
81 context->common.frameInfo.bitpool = maxBitpool;
82
83 OI_SBC_ExpandFrameFields(&context->common.frameInfo);
84
85 if (context->common.frameInfo.nrof_channels >= context->common.pcmStride) {
86 return OI_STATUS_INVALID_PARAMETERS;
87 }
88
89 return OI_OK;
90 }
91
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)92 OI_STATUS OI_CODEC_SBC_DecodeRaw(OI_CODEC_SBC_DECODER_CONTEXT* context, uint8_t bitpool,
93 const OI_BYTE** frameData, uint32_t* frameBytes, int16_t* pcmData,
94 uint32_t* pcmBytes) {
95 return internal_DecodeRaw(context, bitpool, frameData, frameBytes, pcmData, pcmBytes);
96 }
97
OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT * context,OI_BOOL enhanced,uint8_t subbands)98 OI_STATUS OI_CODEC_SBC_DecoderLimit(OI_CODEC_SBC_DECODER_CONTEXT* context, OI_BOOL enhanced,
99 uint8_t subbands) {
100 if (enhanced) {
101 #ifdef SBC_ENHANCED
102 context->enhancedEnabled = TRUE;
103 #else
104 context->enhancedEnabled = FALSE;
105 #endif
106 } else {
107 context->enhancedEnabled = FALSE;
108 }
109 context->restrictSubbands = subbands;
110 context->limitFrameFormat = TRUE;
111 return OI_OK;
112 }
113
114 /**
115 @}
116 */
117