aaf0cc00c4
1. arrange the order of profile ID enums 2. add directory "external" and move SBC codec source into it
111 lines
3.8 KiB
C++
111 lines
3.8 KiB
C++
/******************************************************************************
|
|
*
|
|
* Copyright (C) 2014 The Android Open Source Project
|
|
* Copyright 2003 - 2004 Open Interface North America, Inc. All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
******************************************************************************/
|
|
|
|
/*******************************************************************************
|
|
* @file readsamplesjoint.inc
|
|
*
|
|
* This is the body of the generic version of OI_SBC_ReadSamplesJoint().
|
|
* It is designed to be \#included into a function as follows:
|
|
\code
|
|
void OI_SBC_ReadSamplesJoint4(OI_CODEC_SBC_COMMON_CONTEXT *common, OI_BITSTREAM *global_bs)
|
|
{
|
|
#define NROF_SUBBANDS 4
|
|
#include "readsamplesjoint.inc"
|
|
#undef NROF_SUBBANDS
|
|
}
|
|
|
|
void OI_SBC_ReadSamplesJoint8(OI_CODEC_SBC_COMMON_CONTEXT *common, OI_BITSTREAM *global_bs)
|
|
{
|
|
#define NROF_SUBBANDS 8
|
|
#include "readsamplesjoint.inc"
|
|
#undef NROF_SUBBANDS
|
|
}
|
|
\endcode
|
|
* Or to make a generic version:
|
|
\code
|
|
void OI_SBC_ReadSamplesJoint(OI_CODEC_SBC_COMMON_CONTEXT *common, OI_BITSTREAM *global_bs)
|
|
{
|
|
OI_UINT nrof_subbands = common->frameInfo.nrof_subbands;
|
|
|
|
#define NROF_SUBBANDS nrof_subbands
|
|
#include "readsamplesjoint.inc"
|
|
#undef NROF_SUBBANDS
|
|
}
|
|
\endcode
|
|
* @ingroup codec_internal
|
|
*******************************************************************************/
|
|
|
|
/**********************************************************************************
|
|
$Revision: #1 $
|
|
***********************************************************************************/
|
|
|
|
{
|
|
OI_CODEC_SBC_COMMON_CONTEXT *common = &context->common;
|
|
OI_UINT bl = common->frameInfo.nrof_blocks;
|
|
OI_INT32 * RESTRICT s = common->subdata;
|
|
OI_UINT8 *ptr = global_bs->ptr.w;
|
|
OI_UINT32 value = global_bs->value;
|
|
OI_UINT bitPtr = global_bs->bitPtr;
|
|
OI_UINT8 jmask = common->frameInfo.join << (8 - NROF_SUBBANDS);
|
|
|
|
do {
|
|
OI_INT8 *sf_array = &common->scale_factor[0];
|
|
OI_UINT8 *bits_array = &common->bits.uint8[0];
|
|
OI_UINT8 joint = jmask;
|
|
OI_UINT sb;
|
|
/*
|
|
* Left channel
|
|
*/
|
|
sb = NROF_SUBBANDS;
|
|
do {
|
|
OI_UINT32 raw;
|
|
OI_INT32 dequant;
|
|
OI_UINT8 bits = *bits_array++;
|
|
OI_INT sf = *sf_array++;
|
|
|
|
OI_BITSTREAM_READUINT(raw, bits, ptr, value, bitPtr);
|
|
dequant = OI_SBC_Dequant(raw, sf, bits);
|
|
*s++ = dequant;
|
|
} while (--sb);
|
|
/*
|
|
* Right channel
|
|
*/
|
|
sb = NROF_SUBBANDS;
|
|
do {
|
|
OI_UINT32 raw;
|
|
OI_INT32 dequant;
|
|
OI_UINT8 bits = *bits_array++;
|
|
OI_INT sf = *sf_array++;
|
|
|
|
OI_BITSTREAM_READUINT(raw, bits, ptr, value, bitPtr);
|
|
dequant = OI_SBC_Dequant(raw, sf, bits);
|
|
/*
|
|
* Check if we need to do mid/side
|
|
*/
|
|
if (joint & 0x80) {
|
|
OI_INT32 mid = *(s - NROF_SUBBANDS);
|
|
OI_INT32 side = dequant;
|
|
*(s - NROF_SUBBANDS) = mid + side;
|
|
dequant = mid - side;
|
|
}
|
|
joint <<= 1;
|
|
*s++ = dequant;
|
|
} while (--sb);
|
|
} while (--bl);
|
|
}
|