/*
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* Copyright (C) 2003 - 2016 Sony Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ldac.h"
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/***************************************************************************************************
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Subfunction: Convert from 16bit Signed Integer PCM
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***************************************************************************************************/
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__inline static void byte_data_to_int_s16_ldac(
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char *p_in,
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INT32 *p_out,
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int nsmpl)
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{
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int i;
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short *p_s;
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p_s = (short *)p_in;
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for (i = 0; i < nsmpl; i++) {
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*p_out++ = lsft_ldac((INT32)*p_s++, LDAC_Q_SETPCM);
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}
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return;
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}
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/***************************************************************************************************
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Subfunction: Convert from 24bit Signed Integer PCM
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***************************************************************************************************/
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__inline static void byte_data_to_int_s24_ldac(
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char *p_in,
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INT32 *p_out,
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int nsmpl)
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{
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int i, val;
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char *p_c;
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p_c = (char *)p_in;
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for (i = 0; i < nsmpl; i++) {
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#ifdef LDAC_HOST_ENDIAN_LITTLE
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val = 0x000000ff & (*p_c++);
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val |= 0x0000ff00 & (*p_c++ << 8);
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val |= 0xffff0000 & (*p_c++ << 16);
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#else /* LDAC_HOST_ENDIAN_LITTLE */
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val = 0xffff0000 & (*p_c++ << 16);
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val |= 0x0000ff00 & (*p_c++ << 8);
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val |= 0x000000ff & (*p_c++);
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#endif /* LDAC_HOST_ENDIAN_LITTLE */
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*p_out++ = (INT32)((val << 8) >> 1); /* Sign Extension */
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}
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return;
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}
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/***************************************************************************************************
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Subfunction: Convert from 32bit Signed Integer PCM
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***************************************************************************************************/
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__inline static void byte_data_to_int_s32_ldac(
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char *p_in,
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INT32 *p_out,
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int nsmpl)
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{
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int i;
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int *p_l;
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p_l = (int *)p_in;
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for (i = 0; i < nsmpl; i++) {
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*p_out++ = rsft_ldac((INT32)*p_l++, 16-LDAC_Q_SETPCM);
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}
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return;
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}
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/***************************************************************************************************
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Set Input PCM
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***************************************************************************************************/
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DECLFUNC void set_input_pcm_ldac(
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SFINFO *p_sfinfo,
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char *pp_pcm[],
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LDAC_SMPL_FMT_T format,
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int nlnn)
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{
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int ich, isp;
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int nchs = p_sfinfo->cfg.ch;
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int nsmpl = npow2_ldac(nlnn);
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INT32 *p_time;
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if (format == LDAC_SMPL_FMT_S16) {
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for (ich = 0; ich < nchs; ich++) {
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p_time = p_sfinfo->ap_ac[ich]->p_acsub->a_time;
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for (isp = 0; isp < nsmpl; isp++) {
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p_time[isp] = p_time[nsmpl+isp];
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}
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byte_data_to_int_s16_ldac(pp_pcm[ich], p_time+nsmpl, nsmpl);
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}
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}
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else if (format == LDAC_SMPL_FMT_S24) {
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for (ich = 0; ich < nchs; ich++) {
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p_time = p_sfinfo->ap_ac[ich]->p_acsub->a_time;
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for (isp = 0; isp < nsmpl; isp++) {
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p_time[isp] = p_time[nsmpl+isp];
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}
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byte_data_to_int_s24_ldac(pp_pcm[ich], p_time+nsmpl, nsmpl);
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}
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}
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else if (format == LDAC_SMPL_FMT_S32) {
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for (ich = 0; ich < nchs; ich++) {
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p_time = p_sfinfo->ap_ac[ich]->p_acsub->a_time;
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for (isp = 0; isp < nsmpl; isp++) {
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p_time[isp] = p_time[nsmpl+isp];
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}
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byte_data_to_int_s32_ldac(pp_pcm[ich], p_time+nsmpl, nsmpl);
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}
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}
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return;
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}
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