37 uint32_t SBC_Encode(SBC_ENC_PARAMS* pstrEncParams, int16_t* input,  in SBC_Encode()  argument
47   int32_t s32NumOfBlocks = pstrEncParams->s16NumOfBlocks;  in SBC_Encode()
53   register int32_t s32NumOfSubBands = pstrEncParams->s16NumOfSubBands;  in SBC_Encode()
57     SbcAnalysisFilter4(pstrEncParams, input);  in SBC_Encode()
59     SbcAnalysisFilter8(pstrEncParams, input);  in SBC_Encode()
62   ps16ScfL = pstrEncParams->as16ScaleFactor;  in SBC_Encode()
63   s32Ch = pstrEncParams->s16NumOfChannels * s32NumOfSubBands;  in SBC_Encode()
66     SbBuffer = pstrEncParams->s32SbBuffer + s32Sb;  in SBC_Encode()
84   if (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO) {  in SBC_Encode()
86     ps16ScfL = pstrEncParams->as16ScaleFactor;  in SBC_Encode()
89       SbBuffer = pstrEncParams->s32SbBuffer + s32Sb;  in SBC_Encode()
122         SbBuffer = pstrEncParams->s32SbBuffer + s32Sb;  in SBC_Encode()
135         pstrEncParams->as16Join[s32Sb] = 1;  in SBC_Encode()
137         pstrEncParams->as16Join[s32Sb] = 0;  in SBC_Encode()
141     pstrEncParams->as16Join[s32Sb] = 0;  in SBC_Encode()
145   pstrEncParams->s16MaxBitNeed = (int16_t)maxBit;  in SBC_Encode()
148   if ((pstrEncParams->s16ChannelMode == SBC_STEREO) ||  in SBC_Encode()
149       (pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO))  in SBC_Encode()
150     sbc_enc_bit_alloc_ste(pstrEncParams);  in SBC_Encode()
152     sbc_enc_bit_alloc_mono(pstrEncParams);  in SBC_Encode()
155   return EncPacking(pstrEncParams, output);  in SBC_Encode()
163 void SBC_Encoder_Init(SBC_ENC_PARAMS* pstrEncParams) {  in SBC_Encoder_Init()  argument
171   if (pstrEncParams->s16ChannelMode == SBC_MONO)  in SBC_Encoder_Init()
172     pstrEncParams->s16NumOfChannels = 1;  in SBC_Encoder_Init()
174     pstrEncParams->s16NumOfChannels = 2;  in SBC_Encoder_Init()
177   if (pstrEncParams->s16SamplingFreq == SBC_sf16000)  in SBC_Encoder_Init()
179   else if (pstrEncParams->s16SamplingFreq == SBC_sf32000)  in SBC_Encoder_Init()
181   else if (pstrEncParams->s16SamplingFreq == SBC_sf44100)  in SBC_Encoder_Init()
186   if ((pstrEncParams->s16ChannelMode == SBC_JOINT_STEREO) ||  in SBC_Encoder_Init()
187       (pstrEncParams->s16ChannelMode == SBC_STEREO)) {  in SBC_Encoder_Init()
189         (int16_t)((pstrEncParams->u16BitRate * pstrEncParams->s16NumOfSubBands *  in SBC_Encoder_Init()
191                   ((32 + (4 * pstrEncParams->s16NumOfSubBands *  in SBC_Encoder_Init()
192                           pstrEncParams->s16NumOfChannels) +  in SBC_Encoder_Init()
193                     ((pstrEncParams->s16ChannelMode - 2) *  in SBC_Encoder_Init()
194                      pstrEncParams->s16NumOfSubBands)) /  in SBC_Encoder_Init()
195                    pstrEncParams->s16NumOfBlocks));  in SBC_Encoder_Init()
198                   (4 * pstrEncParams->s16NumOfSubBands *  in SBC_Encoder_Init()
199                    pstrEncParams->s16NumOfChannels) /  in SBC_Encoder_Init()
201                   (((pstrEncParams->s16ChannelMode - 2) *  in SBC_Encoder_Init()
202                     pstrEncParams->s16NumOfSubBands) +  in SBC_Encoder_Init()
203                    (pstrEncParams->s16NumOfBlocks * s16Bitpool)) /  in SBC_Encoder_Init()
207                  (pstrEncParams->s16NumOfSubBands *  in SBC_Encoder_Init()
208                   pstrEncParams->s16NumOfBlocks * 1000);  in SBC_Encoder_Init()
210     if (s16BitRate > pstrEncParams->u16BitRate) s16Bitpool--;  in SBC_Encoder_Init()
212     if (pstrEncParams->s16NumOfSubBands == 8)  in SBC_Encoder_Init()
213       pstrEncParams->s16BitPool = (s16Bitpool > 255) ? 255 : s16Bitpool;  in SBC_Encoder_Init()
215       pstrEncParams->s16BitPool = (s16Bitpool > 128) ? 128 : s16Bitpool;  in SBC_Encoder_Init()
218         ((pstrEncParams->s16NumOfSubBands * pstrEncParams->u16BitRate * 1000) /  in SBC_Encoder_Init()
219          (s16SamplingFreq * pstrEncParams->s16NumOfChannels)) -  in SBC_Encoder_Init()
220         (((32 / pstrEncParams->s16NumOfChannels) +  in SBC_Encoder_Init()
221           (4 * pstrEncParams->s16NumOfSubBands)) /  in SBC_Encoder_Init()
222          pstrEncParams->s16NumOfBlocks));  in SBC_Encoder_Init()
224     pstrEncParams->s16BitPool =  in SBC_Encoder_Init()
225         (s16Bitpool > (16 * pstrEncParams->s16NumOfSubBands))  in SBC_Encoder_Init()
226             ? (16 * pstrEncParams->s16NumOfSubBands)  in SBC_Encoder_Init()
230   if (pstrEncParams->s16BitPool < 0) pstrEncParams->s16BitPool = 0;  in SBC_Encoder_Init()
232   HeaderParams = ((pstrEncParams->s16SamplingFreq & 3) << 6);  in SBC_Encoder_Init()
235   HeaderParams |= (((pstrEncParams->s16NumOfBlocks - 4) & 12) << 2);  in SBC_Encoder_Init()
238   HeaderParams |= ((pstrEncParams->s16ChannelMode & 3) << 2);  in SBC_Encoder_Init()
241   HeaderParams |= ((pstrEncParams->s16AllocationMethod & 1) << 1);  in SBC_Encoder_Init()
242   HeaderParams |= ((pstrEncParams->s16NumOfSubBands >> 3) & 1); /*4 or 8*/  in SBC_Encoder_Init()
243   pstrEncParams->FrameHeader = HeaderParams;  in SBC_Encoder_Init()
245   if (pstrEncParams->s16NumOfSubBands == 4) {  in SBC_Encoder_Init()
246     if (pstrEncParams->s16NumOfChannels == 1)  in SBC_Encoder_Init()
251     if (pstrEncParams->s16NumOfChannels == 1)  in SBC_Encoder_Init()