| Chisato Kenmochi | 9470443 | 2017-01-10 11:56:48 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2003 - 2016 Sony Corporation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "ldac.h" |
| 18 | |
| 19 | /*************************************************************************************************** |
| 20 | Subfunction: Convert from 16bit Signed Integer PCM |
| 21 | ***************************************************************************************************/ |
| 22 | __inline static void byte_data_to_int_s16_ldac( |
| 23 | char *p_in, |
| 24 | INT32 *p_out, |
| 25 | int nsmpl) |
| 26 | { |
| 27 | int i; |
| 28 | short *p_s; |
| 29 | |
| 30 | p_s = (short *)p_in; |
| 31 | for (i = 0; i < nsmpl; i++) { |
| 32 | *p_out++ = lsft_ldac((INT32)*p_s++, LDAC_Q_SETPCM); |
| 33 | } |
| 34 | |
| 35 | return; |
| 36 | } |
| 37 | |
| 38 | /*************************************************************************************************** |
| 39 | Subfunction: Convert from 24bit Signed Integer PCM |
| 40 | ***************************************************************************************************/ |
| 41 | __inline static void byte_data_to_int_s24_ldac( |
| 42 | char *p_in, |
| 43 | INT32 *p_out, |
| 44 | int nsmpl) |
| 45 | { |
| 46 | int i, val; |
| 47 | char *p_c; |
| 48 | |
| 49 | p_c = (char *)p_in; |
| 50 | for (i = 0; i < nsmpl; i++) { |
| 51 | #ifdef LDAC_HOST_ENDIAN_LITTLE |
| 52 | val = 0x000000ff & (*p_c++); |
| 53 | val |= 0x0000ff00 & (*p_c++ << 8); |
| 54 | val |= 0xffff0000 & (*p_c++ << 16); |
| 55 | #else /* LDAC_HOST_ENDIAN_LITTLE */ |
| 56 | val = 0xffff0000 & (*p_c++ << 16); |
| 57 | val |= 0x0000ff00 & (*p_c++ << 8); |
| 58 | val |= 0x000000ff & (*p_c++); |
| 59 | #endif /* LDAC_HOST_ENDIAN_LITTLE */ |
| 60 | *p_out++ = (INT32)((val << 8) >> 1); /* Sign Extension */ |
| 61 | } |
| 62 | |
| 63 | return; |
| 64 | } |
| 65 | |
| 66 | /*************************************************************************************************** |
| 67 | Subfunction: Convert from 32bit Signed Integer PCM |
| 68 | ***************************************************************************************************/ |
| 69 | __inline static void byte_data_to_int_s32_ldac( |
| 70 | char *p_in, |
| 71 | INT32 *p_out, |
| 72 | int nsmpl) |
| 73 | { |
| 74 | int i; |
| 75 | int *p_l; |
| 76 | |
| 77 | p_l = (int *)p_in; |
| 78 | for (i = 0; i < nsmpl; i++) { |
| 79 | *p_out++ = rsft_ldac((INT32)*p_l++, 16-LDAC_Q_SETPCM); |
| 80 | } |
| 81 | |
| 82 | return; |
| 83 | } |
| 84 | |
| 85 | /*************************************************************************************************** |
| 86 | Set Input PCM |
| 87 | ***************************************************************************************************/ |
| 88 | DECLFUNC void set_input_pcm_ldac( |
| 89 | SFINFO *p_sfinfo, |
| 90 | char *pp_pcm[], |
| 91 | LDAC_SMPL_FMT_T format, |
| 92 | int nlnn) |
| 93 | { |
| 94 | int ich, isp; |
| 95 | int nchs = p_sfinfo->cfg.ch; |
| 96 | int nsmpl = npow2_ldac(nlnn); |
| 97 | INT32 *p_time; |
| 98 | |
| 99 | if (format == LDAC_SMPL_FMT_S16) { |
| 100 | for (ich = 0; ich < nchs; ich++) { |
| 101 | p_time = p_sfinfo->ap_ac[ich]->p_acsub->a_time; |
| 102 | for (isp = 0; isp < nsmpl; isp++) { |
| 103 | p_time[isp] = p_time[nsmpl+isp]; |
| 104 | } |
| 105 | byte_data_to_int_s16_ldac(pp_pcm[ich], p_time+nsmpl, nsmpl); |
| 106 | } |
| 107 | } |
| 108 | else if (format == LDAC_SMPL_FMT_S24) { |
| 109 | for (ich = 0; ich < nchs; ich++) { |
| 110 | p_time = p_sfinfo->ap_ac[ich]->p_acsub->a_time; |
| 111 | for (isp = 0; isp < nsmpl; isp++) { |
| 112 | p_time[isp] = p_time[nsmpl+isp]; |
| 113 | } |
| 114 | byte_data_to_int_s24_ldac(pp_pcm[ich], p_time+nsmpl, nsmpl); |
| 115 | } |
| 116 | } |
| 117 | else if (format == LDAC_SMPL_FMT_S32) { |
| 118 | for (ich = 0; ich < nchs; ich++) { |
| 119 | p_time = p_sfinfo->ap_ac[ich]->p_acsub->a_time; |
| 120 | for (isp = 0; isp < nsmpl; isp++) { |
| 121 | p_time[isp] = p_time[nsmpl+isp]; |
| 122 | } |
| 123 | byte_data_to_int_s32_ldac(pp_pcm[ich], p_time+nsmpl, nsmpl); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | return; |
| 128 | } |
| 129 | |
| 130 | |